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	diff --git a/CHANGELOG.md b/CHANGELOG.md
	index dff5be20a..e09146508 100644
	--- a/CHANGELOG.md
	+++ b/CHANGELOG.md
	@@ -1,3225 +1,3226 @@
	# Changelog Roundcube Webmail

	## Unreleased

	- Fix importing contacts with no email address (#8227)
	- Fix so session's search scope is not used if search is not active (#8199)
	- Fix some PHP8 warnings (#8239)
	- Fix so dark mode state is retained after closing the browser (#8237)
	- Fix bug where new messages were not added to the list on refresh if skip_deleted=true (#8234)
	- Fix colors on "Show source" page in dark mode (#8246)
	- Fix handling of dark_mode_support:false setting in skins meta.json - also when devel_mode=false (#8249)
	- Fix database initialization if db_prefix is a schema prefix (#8221)
	- Fix undefined constant error in Installer on Windows (#8258)
	- Fix installation/upgrade on MySQL 5.5 - Index column size too large (#8231)
	- Fix regression in setting of contact listing name (#8260)
	- Fix bug in Larry skin where headers toggle state was reset on full page preview (#8203)
	+- Fix bug where \u200b characters were added into the recipient input preventing mail delivery (#8269)

	## Release 1.5.0

	- Support displaying RTF content (including encapsulated HTML) from a TNEF attachment
	- Disable the default spellchecker option using spell.roundcube.net (#8182)
	- Newmail_notifier: Improved the notification sound (#8155)
	- Fix size of Mailvelope iframe for PGP-inlined mail, again (#8126)
	- Fix handling of group names with @ character in autocomplete and contacts widget (#8098)
	- Fix Firefox infinate loading display on mail screen (#8128)
	- Fix converting >1MB of HTML content into plain text (#8137)
	- Fix bug where expanding a group in the recipient input could corrupt the input content (#7569)
	- Fix fatal error/warning on invalid input to user parameter (#8152)
	- Fix changing password with dovecot_passwdfile driver (#8145)
	- Fix handling of headers that occur multiple times by show_additional_headers plugin (#8157)
	- Fix bug where vertical scrollbar in new HTML message bounced back on scroll (#8046)
	- Fix displaying inline images with incorrectly declared content-type (#8158)
	- Fix so addr-spec with missing closing angle bracket can be parsed (#8164)
	- Fix handling of spellcheck connection errors (#8172)
	- Fix a couple of PHP8 warnings (#8175, #8176)
	- Fix bug where "from my contacts" and "from trusted senders" values were mixed up (#8177)
	- Fix password/token length check on OAuth login (#8178)
	- Fix XSS issue in handling attachment filename extension in mimetype mismatch warning (#8193)
	- Fix SQL injection via some session variables
	- Fix handling of dark_mode_support:false setting in skins meta.json (#8186)
	- Fix security issues regarding server name and trusted_host_patterns setting

	## Release 1.5-rc

	- Upgrade to TinyMCE 5.8.2
	- SMTP XCLIENT support (#7893, #6411)
	- Add IDN homograph attack (spoofing) detection [CVE-2019-15237] (#6891)
	- Add configuration options for subject prefixes (#7929, #4981)
	- Support IMAP LITERAL- extension [RFC 7888] (#6878)
	- Warn the user about a potential data leak on mail bounce or forward (#7993)
	- Make the Empty action available for every non-empty folder, not only Trash (#7948)
	- Remove (incorrect) use of Return-Receipt-To header (#8069)
	- Submit various simple dialog forms with the Enter key (#7133)
	- Add RFC2231 support to rcube_mime_decode (#7390)
	- Plugin API: Allow modification of 'error' argument in 'message_send_error' hook (#7914)
	- OAuth: add plugin hooks `oauth_login` and `oauth_refresh_token` for oauth events (#8028, #8040)
	- Debug_logger: Fix the main plugin functionality and documentation (#8041)
	- Enigma: Fix bug where signature verification could fail for non-ascii bodies (#7919)
	- Enigma: Fix invalid expiration dates of PGP keys on a 32bit system (#7531)
	- Enigma: Display an information that public and private keys are stored on the server (#7941)
	- Enigma: Optional support for passwordless keys (#7265)
	- Managesieve: Fix removing nested rules in scripts (#8011)
	- Managesieve: Support XOAUTH2, requires Net_Sieve 1.4.5 (#7925)
	- Managesieve: Added ability to remove 'redirect' option from UI (#7922)
	- New_user_dialog: Use the 'identity_update' hook (#8023)
	- Password: Fix broken 'hmail' driver (#7966)
	- Password: Set password_minimum_length to 8 by default (#8003)
	- Vcard_attachments: Improve handling of multiple contacts (#7027)
	- Fix inserting a group from non-default source using the Insert contact(s) dialog (#8095)
	- Fix invalid search fields after search scope change (#6919)
	- Fix so "Always allow from..." button appears also when allow_images=3 (#7961)
	- Fix Elastic's pretty select scroll position in Chrome (#7964)
	- Fix bug where invalid non-unicode characters in JSON output could make the UI unresponsive (#7955)
	- Fix PHP 8 fatal error when allowing images in an email (#7968)
	- Fix so session expiration is more precise and do not depend on the garbage collector (#7576)
	- Fix bug where imap_conn_options settings were ignored (#7912)
	- Fix bug causing some HTML message content to be not centered in Elastic skin (#7911)
	- Fix bug when sending an email and recipient's email address contains a trailing dot (#7899)
	- Fix bug where the list page wasn't reset when changing a folder on mail view page (#7932)
	- Fix so selecting the same folder to reset search resets also the page number (#7125)
	- Fix login page rendering after oauth failure (#7812,#7923)
	- Fix bug where assigning users to groups via menu (not drag'n'drop) could fail in Elastic theme (#7973)
	- Fix HTML5 parser issue with a messy HTML code from Outlook (#7356)
	- Fix handling of multiple link references with the same index in plain text message (#8021)
	- Fix various actions on folders with angle brackets in name (#8037)
	- Fix inconsistent fowarding actions statuses on drafts (#8039)
	- Fix bug where `start` and `reversed` attributes of `ol` tag were ignored (#8059)
	- Fix bug where consecutive LDAP searches could return wrong results (#8064)
	- Fix bug where plus characters in attachment filename could have been ignored (#8074)
	- Fix displaying HTML body with inline images encapsulated using TNEF format (winmail.dat)
	- Fix handling of custom sender addresses with names (#8106)
	- Fix shift + drag'n'drop menu not working in Elastic skin with Chrome browser (#8107)

	## Release 1.5-beta

	- Require PHP >= 5.5
	- Support PHP 8.0 (#7625)
	- Require php-intl
	- Remove use of Net_IDNA2 package
	- Require GuzzleHttp\Client
	- Upgrade to TinyMCE 5.5.1
	- Upgrade to jQuery 3.5.1 (#7464)
	- Update build tools (#7800, #7804, #7497):
	- jsshrink.sh: Replace google-closure-compiler with UglifyJS
	- cssshrink.sh: Replace yuicompressor with csso
	- require lessc >= 2.5.2 (and add support for v4) with less-plugin-clean-css for Less files compilation
	- Automatically collected recipients and trusted senders (#6904)
	- Added configurable Collected Recipients addressbook source (#4971)
	- Added configurable Trusted Senders addressbook source (#5046)
	- Added 'contact_exists' hook
	- Added separate "trusted senders" options for show_images and mdn_request preferences (#7614)
	- Contact form mode: private/business (#7630)
	- OAuth/XOauth support (#7425, #6933)
	- Cache refactoring (#6312)
	- Added special value 'email' to login_username_filter, it changes also logon input type (#7179)
	- Allow array in smtp_host config (#7296)
	- Support proxy for server-side HTTP requests (#7658)
	- By default do not set the User-Agent header (#7731)
	- Add possibility to (re-)define field mapping on contacts import from a CSV file (#7045, #6668)
	- Move "On request for return receipt" from "Mailbox View" to "Displaying Messages" (#7614)
	- Support RFC8438: IMAP STATUS=SIZE - for faster folder size calculation (#7269)
	- MySQL: Use utf8mb4 charset and utf8mb4_unicode_ci collation (#6535, #7113)
	- Allow NULL in users.preferences column in postgres and sqlite db, the same as for other engines (#7767)
	- Support for language codes up to 16 chars long (e.g. es-419) in database schema (#6851)
	- Relaxed domain name validation for extended TLDs support (#5588)
	- Allow opening application/octet-stream attachments according to filename extension (#6821)
	- Added support for INSERT OR REPLACE queries (#6771)
	- Allow skins to define which layout options they support (#7235)
	- Extract RFC2231 attachment name from message headers (#6729, #6783)
	- Add support for SameSite cookie attribute via session_samesite option (req PHP >= 7.3.0) (#6772)
	- Change folders sorting so shared/other users namespaces are listed last (#5012)
	- Display a warning and do not try to open empty attachments (#7332)
	- Return 204 rather than 404 on missing contact photo (#7777)
	- Add 'reconnect' plugin to retry IMAP connection (#7844)
	- Plugin API: Added 'message' argument to 'message_compose_body' hook
	- Plugin API: Added 'preferences' parameter to 'user_create' hook (#7692)
	- Elastic: Dark mode (#6709)
	- Elastic: Display email size on the list of messages (#7162)
	- Elastic: Replace properties sidebar with a dialog on the attachment preview page (#7635)
	- Elastic: Minimize forms/colors blink on page load
	- Elastic: Improve mail header "detailed mode" (#7224)
	- Elastic: Moving single recipients between recipient inputs with drag-n-drop (#5069)
	- Elastic: Display a special icon for other users and shared namespace roots (#5012)
	- Elastic: Support space-separated email addresses in recipient input (#6529, #6457)
	- Elastic: Remember list checkbox selection state (#7148)
	- Elastic: Add "Open in new window" in mail compose (#7260)
	- Elastic: Make custom less files optional (#7497)
	- Elastic: Prevent from opening mail preview in a new window on touch devices using double tap (#7732)
	- Templates: Add support for expressions in object attributes (#7237)
	- Templates: Add support for nested if conditions (#6818)
	- Templates: Make [space][slash] ending of condition objects optional (#6954)
	- Mailvelope: Fix size of iframe for PGP-inlined mail (#7348)
	- Mailvelope: Add config option to use Main Keyring (#7348, #7157)
	- Mailvelope: Add config option to set the size for new keys (#7348)
	- Mailvelope: Always ask before discarding email currently being composed (#7348)
	- Mailvelope: Fix unnecessary warning to re-add attachments when restoring a draft (#7348)
	- Archive: Added options to split archive by year or year+month and folder (#7216)
	- Enigma: Support ECC key generation - when using GnuPG >= 2.1.7 (#6853)
	- Managesieve: Add support for 'spamtest' extension - RFC3685 (#6950)
	- Managesieve: Allow display name with email address in vacation :from field (#6760)
	- Managesieve: Improve UX on custom header input (#7207)
	- Managesieve: Fix bug where activation of forward/vacation rule could activate a wrong script (#7423)
	- Managesieve: Fix bug where forward/vacation rule could end up being duplicated (#7349)
	- new_user_identity: Fix missing password for user-specific LDAP operations (#7667)
	- Password: Added 'pwned' password strength driver (#7274)
	- Password: Added Mail-in-a-Box (miab) driver (#7824)
	- Password: Added TinyCP driver (#7510)
	- Password: Added httpapi driver to connect to generic HTTP/HTTPS APIs (#7439)
	- Password: Added dovecot_passwdfile driver (#5786)
	- Password: Removed old 'cpanel' driver, 'cpanel_webmail' driver renamed to 'cpanel' (#7780)
	- Fix handling of address groups in email headers by ignoring their names (#7663)
	- Fix so message flags are updated on refresh also for multifolder search results (#7774)
	- Fix so IMAP ID command is send only after authentication (#7517)
	- Fix bug where it wasn't possible to save Spanish (Latin America) locale preference (#7784)
	- Fix mail search error on invalid search_mods definition (#7789)
	- Fix error when dealing with message/rfc822 attachments using Gmail IMAP (#6854)
	- Fix ISO-2022-JP-MS encoding issues (#7091)
	- Fix so messages in threads with no root aren't displayed separately (#4999)
	- Fix so anchor tags without href attribute are not modified (#7413)
	- Fix invalid IMAP SEARCH command in some rare case on messages cache synchronization (#7895)
	- Fix so allowing remote resources does not add an entry to browser history (#6620)

	## Release 1.4.11

	- Display a nice error informing about no PHP8 support
	- Elastic: Fix compatibility with Less v3 and v4 (#7813)
	- Fix bug with managesieve_domains in Settings > Forwarding form (#7849)
	- Fix errors in MSSQL database update scripts (#7853)
	- Security: Fix cross-site scripting (XSS) via HTML messages with malicious CSS content

	## Release 1.4.10

	- Fix extra angle brackets in In-Reply-To header derived from mailto: params (#7655)
	- Fix folder list issue whan special folder is a subfolder (#7647)
	- Fix Elastic's folder subscription toggle in search result (#7653)
	- Fix state of subscription toggle on folders list after changing folder state from the search result (#7653)
	- Security: Fix cross-site scripting (XSS) via HTML or Plain text messages with malicious content [CVE-2020-35730]

	## Release 1.4.9

	- Fix HTML editor in latest Chrome 85.0.4183.102, update to TinyMCE 4.9.11 (#7615)
	- Add missing localization for some label/legend elements in userinfo plugin (#7478)
	- Fix importing birthday dates from Gmail vCards (BDAY:YYYYMMDD)
	- Fix restoring Cc/Bcc fields from local storage (#7554)
	- Fix jstz.min.js installation, bump version to 1.0.7
	- Fix link to closure compiler in bin/jsshrink.sh script (#7567)
	- Fix incorrect PDO::lastInsertId() use in sqlsrv driver (#7564)
	- Fix bug where some parts of a message could have been missing in a reply/forward body (#7568)
	- Fix empty space on mail printouts in Chrome (#7604)
	- Fix empty output from HTML5 parser when content contains XML tag (#7624)
	- Fix scroll jump on key press in plain text mode of the HTML editor (#7622)
	- Fix so autocompletion list does not hide on scroll inside it (#7592)

	## Release 1.4.8

	- Fix support for an error as a string in message_before_send hook (#7475)
	- Elastic: Fix redundant scrollbar in plain text editor on mail reply (#7500)
	- Elastic: Fix deleted and replied+forwarded icons on messages list (#7503)
	- Managesieve: Fix too-small input field in Elastic when using custom headers (#7498)
	- Managesieve: Allow angle brackets in out-of-office message body (#7518)
	- Fix bug in conversion of email addresses to mailto links in plain text messages (#7526)
	- Fix format=flowed formatting on plain text part derived from the HTML content (#7504)
	- Fix incorrect rewriting of internal links in HTML content (#7512)
	- Fix handling links without defined protocol (#7454)
	- Fix paging of search results on IMAP servers with no SORT capability (#7462)
	- Fix detecting special folders on servers with both SPECIAL-USE and LIST-STATUS (#7525)
	- Security: Fix cross-site scripting (XSS) via HTML messages with malicious svg content [CVE-2020-16145]
	- Security: Fix cross-site scripting (XSS) via HTML messages with malicious math content
	- Security: Fix potential XSS issue in HTML editor of the identity signature input (#7507)

	## Release 1.4.7

	- Fix bug where subfolders of special folders could have been duplicated on folder list
	- Increase maximum size of contact jobtitle and department fields to 128 characters
	- Fix missing newline after the logged line when writing to stdout (#7418)
	- Elastic: Fix context menu (paste) on the recipient input (#7431)
	- Fix problem with forwarding inline images attached to messages with no HTML part (#7414)
	- Fix problem with handling attached images with same name when using database_attachments/redundant_attachments (#7455)
	- Security: Fix cross-site scripting (XSS) via HTML messages with malicious svg/namespace [CVE-2020-15562]

	## Release 1.4.6

	- Installer: Fix regression in SMTP test section (#7417)

	## Release 1.4.5

	- Fix bug in extracting required plugins from composer.json that led to spurious error in log (#7364)
	- Fix so the database setup description is compatible with MySQL 8 (#7340)
	- Markasjunk: Fix regression in jsevent driver (#7361)
	- Fix missing flag indication on collapsed thread in Larry and Elastic (#7366)
	- Fix default keyservers (use keys.openpgp.org), add note about CORS (#7373, #7367)
	- Password: Fix issue with Modoboa driver (#7372)
	- Mailvelope: Use sender's address to find pubkeys to check signatures (#7348)
	- Mailvelope: Fix Encrypt button hidden in Elastic (#7353)
	- Fix PHP warning: count(): Parameter must be an array or an object... in ID command handler (#7392)
	- Fix error when user-configured skin does not exist anymore (#7271)
	- Elastic: Fix aspect ratio of a contact photo in mail preview (#7339)
	- Fix bug where PDF attachments marked as inline could have not been attached on mail forward (#7382)
	- Security: Fix a couple of XSS issues in Installer (#7406)
	- Security: Fix XSS issue in template object 'username' (#7406)
	- Security: Better fix for CVE-2020-12641
	- Security: Fix cross-site scripting (XSS) via malicious XML attachment

	## Release 1.4.4

	- Fix bug where attachments with Content-Id were attached to the message on reply (#7122)
	- Fix identity selection on reply when both sender and recipient addresses are included in identities (#7211)
	- Elastic: Fix text selection with Shift+PageUp and Shift+PageDown in plain text editor when using Chrome (#7230)
	- Elastic: Fix recipient input bug when using click to select a contact from autocomplete list (#7231)
	- Elastic: Fix color of a folder with recent messages (#7281)
	- Elastic: Restrict logo size in print view (#7275)
	- Fix invalid Content-Type for messages with only html part and inline images - Mail_Mime-1.10.7 (#7261)
	- Fix missing contact display name in QR Code data (#7257)
	- Fix so button label in Select image/media dialogs is "Close" not "Cancel" (#7246)
	- Fix regression in testing database schema on MSSQL (#7227)
	- Fix cursor position after inserting a group to a recipient input using autocompletion (#7267)
	- Fix string literals handling in IMAP STATUS (and various other) responses (#7290)
	- Fix bug where multiple images in a message were replaced by the first one on forward/reply/edit (#7293)
	- Fix handling keyservers configured with protocol prefix (#7295)
	- Markasjunk: Fix marking as spam/ham on moving messages with Move menu (#7189)
	- Markasjunk: Fix bug where moving to Junk was failing on messages selected with Select > All (#7206)
	- Fix so imap error message is displayed to the user on folder create/update (#7245)
	- Fix bug where a special folder couldn't be created if a special-use flag is not supported (#7147)
	- Mailvelope: Fix bug where recipients with name were not handled properly in mail compose (#7312)
	- Fix characters encoding in group rename input after group creation/rename (#7330)
	- Fix bug where some message/rfc822 parts could not be attached on forward (#7323)
	- Make install-jsdeps.sh script working without the 'file' program installed (#7325)
	- Fix performance issue of parsing big HTML messages by disabling HTML5 parser for these (#7331)
	- Fix so Print button for PDF attachments works on Firefox >= 75 (#5125)
	- Security: Fix XSS issue in handling of CDATA in HTML messages [CVE-2020-12625]
	- Security: Fix remote code execution via crafted 'im_convert_path' or 'im_identify_path' settings [CVE-2020-12641]
	- Security: Fix local file inclusion (and code execution) via crafted 'plugins' option [CVE-2020-12640]
	- Security: Fix CSRF bypass that could be used to log out an authenticated user [CVE-2020-12626] (#7302)

	## Release 1.4.3

	- Enigma: Fix so key list selection is reset when opening key creation form (#7154)
	- Enigma: Fix so using list checkbox selection does not load the key preview frame
	- Enigma: Fix generation of key pairs for identities with IDN domains (#7181)
	- Enigma: Display IDN domains of key users and identities in UTF8
	- Enigma: Fix bug where "Send unencrypted" button didn't work in Elastic skin (#7205)
	- Managesieve: Fix bug where it wasn't possible to save flag actions (#7188)
	- Markasjunk: Fix bug where marking as spam/ham didn't work on moving messages with drag-and-drop (#7137)
	- Password: Make chpass-wrapper.py Python 3 compatible (#7135)
	- Elastic: Fix disappearing sidebar in mail compose after clicking Mail button
	- Elastic: Fix incorrect aria-disabled attribute on Mail taskmenu button in mail compose
	- Elastic: Fix bug where it was possible to switch editor mode when 'htmleditor' was in 'dont_override' (#7143)
	- Elastic: Fix text selection in recipient inputs (#7129)
	- Elastic: Fix missing Close button in "more recipients" dialog
	- Elastic: Fix non-working folder subscription checkbox for newly added folders (#7174)
	- Fix regression where "Open in new window" action didn't work (#7155)
	- Fix PHP Warning: array_filter() expects parameter 1 to be array, null given in subscriptions_option plugin (#7165)
	- Fix unexpected error message when mail refresh involves folder auto-unsubscribe (#6923)
	- Fix recipient duplicates in print-view when the recipient list has been expanded (#7169)
	- Fix bug where files in skins/ directory were listed on skins list (#7180)
	- Fix bug where message parts with no Content-Disposition header and no name were not listed on attachments list (#7117)
	- Fix display issues with mail subject that contains line-breaks (#7191)
	- Fix invalid Content-Transfer-Encoding on multipart messages - Mail_Mime fix (#7170)
	- Fix regression where using an absolute path to SQLite database file on Windows didn't work (#7196)
	- Fix using unix:///path/to/socket.file in memcached driver (#7210)

	## Release 1.4.2

	- Add support for PHPUnit 6 and 7 (#6870)
	- Plugin API: Make actionbefore, before<action>, actionafter and after<action> events working with plugin actions (#7106)
	- Managesieve: Replace "Filter disabled" with "Filter enabled" (#7028)
	- Managesieve: Fix so modifier type select wasn't hidden after hiding modifier select on header change
	- Managesieve: Fix filter selection after removing a first filter (#7079)
	- Markasjunk: Fix marking more than one message as spam/ham with email_learn driver (#7121)
	- Password: Fix kpasswd and smb drivers' double-escaping bug (#7092)
	- Enigma: Add script to import keys from filesystem to the db storage (for multihost)
	- Installer: Fix DB Write test on SQLite database ("database is locked" error) (#7064)
	- Installer: Fix so SQLite DSN with a relative path to the database file works in Installer
	- Elastic: Fix contrast of warning toasts (#7058)
	- Elastic: Simple search in pretty selects (#7072)
	- Elastic: Fix hidden list widget on mobile/tablet when selecting folder while search menu is open (#7120)
	- Fix so type attribute on script tags is not used on HTML5 pages (#6975)
	- Fix unread count after purge on a folder that is not currently selected (#7051)
	- Fix bug where Enter key didn't work on messages list in "List" layout (#7052)
	- Fix bug where deleting a saved search in addressbook caused display issue on sources/groups list (#7061)
	- Fix bug where a new saved search added after removing all searches wasn't added to the list (#7061)
	- Fix bug where a new contact group added after removing all groups from addressbook wasn't added to the list
	- Fix bug where Ctype extension wasn't required in Installer and INSTALL file (#7049)
	- Fix so install-jsdeps.sh removes Bootstrap's sourceMappingURL (#7035)
	- Fix so use of Ctrl+A does not scroll the list (#7020)
	- Fix/remove useless keyup event handler on username input in logon form (#6970)
	- Fix bug where cancelling switching from HTML to plain text didn't set the flag properly (#7077)
	- Fix bug where HTML reply could add an empty line with extra indentation above the original message (#7088)
	- Fix matching multiple X-Forwarded-For addresses with 'proxy_whitelist' (#7107)
	- Fix so displayed maximum attachment size depends also on 'max_message_size' (#7105)
	- Fix bug where 'skins_allowed' option didn't enforce user skin preference (#7080)
	- Fix so contact's organization field accepts up to 128 characters (it was 50)
	- Fix bug where listing tables in PostgreSQL database with db_prefix didn't work (#7093)
	- Fix bug where 'text' attribute on body tag was ignored when displaying HTML message (#7109)
	- Fix bug where next message wasn't displayed after delete in List mode (#7096)
	- Fix so number of contacts in a group is not limited to 200 when redirecting to mail composer from Contacts (#6972)
	- Fix malformed characters in HTML message with charset meta tag not in head (#7116)

	## Release 1.4.1

	- Elastic: Change HTML editor widget to improve form flow (#6992)
	- Elastic: Fix position of mobile floating action button (#7038)
	- Managesieve: Fix locked UI after opening filter frame (#7007)
	- Fix PHP warning: "array_merge(): Expected parameter 2 to be an array, null given in sendmail.inc (#7003)
	- Fix bug where cache keys could exceed length limit specified in db schema (#7004)
	- Fix invalid Signature button state after escaping Mailvelope mode (#7015)
	- Fix so 401 error is returned only on failed logon requests (#7010)
	- Fix db_prefix handling in queries with `TRUNCATE TABLE <name>` and `UNIQUE <name>` (#7013)
	- Fix so update.sh script warns about changed defaults (#7011)
	- Fix tables listing routine when DSN contained a database with unsupported suffix (#7034)
	- Fix so Elastic is also a default in jqueryui plugin (#7039)
	- Fix bug where the Installer would not warn about required schema upgrade (#7042)

	## Release 1.4.0

	- Elastic: Resizable columns (#6929)
	- Elastic: Fix position and style of auto-complete dropdown on small screens (#6951)
	- Elastic: Fix initial focus on recipients input in mail compose screen
	- Elastic: Fix inserting responses at cursor position (#6971)
	- Elastic: Fix unread filter icon and search state on folder change (#6978)
	- Elastic: Fix regression where Encrypt button wasn't displayed in mail compose toolbar (#6982)
	- Elastic: Fix regression where recipient input didn't update internal input state (#6988)
	- Enigma: Fix bug where signing option was set to disabled after saving a draft in Elastic skin (#6515)
	- Redis: Improve error handling and phpredis 5.X support (#6888)
	- Archive: Fix bug where next email was not displayed after Archive button use (#6965)
	- Archive: Fix missing Archive icon in folder selector popup in Elastic
	- Fix bug where cache keys were not case-sensitive on MySQL/MSSQL (#6942)
	- Fix so an error is logged when encryption fails (#6948)
	- Fix bug where inline images could have been ignored if Content-Id header contained redundant spaces (#6980)
	- Fix and document skin_logo setup (#6981)

	## Release 1.4-rc2

	- Update to jQuery 3.4.1
	- Clarified 'address_book_type' option behavior (#6680)
	- Added cookie mismatch detection, display an error message informing the user to clear cookies
	- Renamed 'log_session' option to 'session_debug'
	- Removed 'delete_always' option (#6782)
	- Don't log full session identifiers in userlogins log (#6625)
	- Support $HasAttachment/$HasNoAttachment keywords (#6201)
	- Support PECL memcached extension as a session and cache storage driver (experimental)
	- Switch to IDNA2008 variant (#6806)
	- installto.sh: Add possibility to run the update even on the up-to-date installation (#6533)
	- Plugin API: Add 'render_folder_selector' hook
	- Added 'keyservers' option to define list of HKP servers for Enigma/Mailvelope (#6326)
	- Added flag to disable server certificate validation via Mysql DSN argument (#6848)
	- Select all records on the current list page with CTRL + A (#6813)
	- Use Left/Right Arrow keys to faster move over threaded messages list (#6399)
	- Changes in `display_next` setting (#6795):
	- Move it to Preferences > User Interface > Main Options
	- Make it apply to Contacts interface too
	- Make it apply only if deleting/moving a previewed message/contact
	- Redis: Support connection to unix socket
	- Put charset meta specification before a title tag, add page title automatically (#6811)
	- Elastic: Various internal refactorings
	- Elastic: Add Prev/Next buttons on message page toolbar (#6648)
	- Elastic: Close search options on Enter key press in quick-search input (#6660)
	- Elastic: Changed some icons (#6852)
	- Elastic: Changed read/unread icons (#6636)
	- Elastic: Changed "Move to..." icon (#6637)
	- Elastic: Add hide/show for advanced preferences (#6632)
	- Elastic: Add default icon on Settings/Preferences lists for external plugins (#6814)
	- Elastic: Add indicator for popover menu items that open a submenu (#6868)
	- Elastic: Move compose attachments/options to the right side (#6839)
	- Elastic: Add border/background to attachments list widget (#6842)
	- Elastic: Add "Show unread messages" button to the search bar (#6587)
	- Elastic: Fix bug where toolbar disappears on attachment menu use in Chrome (#6677)
	- Elastic: Fix folders list scrolling on touch devices (#6706)
	- Elastic: Fix non-working pretty selects in Chrome browser (#6705)
	- Elastic: Fix issue with absolute positioned mail content (#6739)
	- Elastic: Fix bug where some menu actions could cause a browser popup warning
	- Elastic: Fix handling mailto: URL parameters in contact menu (#6751)
	- Elastic: Fix keyboard navigation in some menus, e.g. the contact menu
	- Elastic: Fix visual issue with long buttons in .boxwarning (#6797)
	- Elastic: Fix handling new-line in text pasted to a recipient input
	- Elastic: Fix so search is not reset when returning from the message preview page (#6847)
	- Larry: Fix regression where menu actions didn't work with keyboard (#6740)
	- ACL: Display user/group names (from ldap) instead of acl identifier
	- Password: Added ldap_exop driver (#4992)
	- Password: Added support for SSHA512 password algorithm (#6805)
	- Managesieve: Fix bug where global includes were requested for vacation (#6716)
	- Managesieve: Use RFC-compliant line endings, CRLF instead of LF (#6686)
	- Managesieve: Fix so "Create filter" option does not show up when Filters menu is disabled (#6723)
	- Enigma: For verified signatures, display the user id associated with the sender address (#5958)
	- Enigma: Fix bug where revoked users/keys were not greyed out in key info
	- Enigma: Fix error message when trying to encrypt with a revoked key (#6607)
	- Enigma: Fix "decryption oracle" bug [CVE-2019-10740] (#6638)
	- Enigma: Fix bug where signature verification could have been skipped for some message structures (#6838)
	- Fix language selection for spellchecker in html mode (#6915)
	- Fix css styles leak from replied/forwarded message to the rest of the composed text (#6831)
	- Fix invalid path to "add contact" icon when using assets_path setting
	- Fix invalid path to blocked.gif when using assets_path setting (#6752)
	- Fix so advanced search dialog is not automatically displayed on searchonly addressbooks (#6679)
	- Fix so an error is logged when more than one attachment plugin has been enabled, initialize the first one (#6735)
	- Fix bug where flag change could have been passed to a preview frame when not expected
	- Fix bug in HTML parser that could cause missing text fragments when there was no head/body tag (#6713)
	- Fix bug where HTML messages with a xml:namespace tag were not rendered (#6697)
	- Fix TinyMCE download location (#6694)
	- Fix so "Open in new window" consistently displays "external window" interface (#6659)
	- Fix bug where next row wasn't selected after deleting a collapsed thread (#6655)
	- Fix bug where external content (e.g. mail body) was passed to templates parsing code (#6640)
	- Fix bug where attachment preview didn't work with x_frame_options=deny (#6688)
	- Fix so bin/install-jsdeps.sh returns error code on error (#6704)
	- Fix bug where bmp images couldn't be displayed on some systems (#6728)
	- Fix bug in parsing vCard data using PHP 7.3 due to an invalid regexp (#6744)
	- Fix bug where bold/strong text was converted to upper-case on html-to-text conversion (6758)
	- Fix bug in rcube_utils::parse_hosts() where %t, %d, %z could return only tld (#6746)
	- Fix bug where Next/Prev button in mail view didn't work with multi-folder search result (#6793)
	- Fix bug where selection of columns on messages list wasn't working
	- Fix bug in converting multi-page Tiff images to Jpeg (#6824)
	- Fix bug where handling multiple messages from multi-folder search result could not work (#6845)
	- Fix bug where unread count wasn't updated after moving multi-folder result (#6846)
	- Fix wrong messages order after returning to a multi-folder search result (#6836)
	- Fix some PHP 7.4 compat. issues (#6884, #6866)
	- Fix bug where it was possible to bypass the position:fixed CSS check in received messages (#6898)
	- Fix bug where some strict remote URIs in url() style were unintentionally blocked (#6899)
	- Fix bug where it was possible to bypass the CSS jail in HTML messages using :root pseudo-class (#6897)
	- Fix bug where it was possible to bypass href URI check with data:application/xhtml+xml URIs (#6896)

	## Release 1.4-rc1

	- Changed 'password_charset' default to 'UTF-8' (#6522)
	- Add skins_allowed option (#6483)
	- SMTP GSSAPI support via krb_authentication plugin (#6417)
	- Avoid Referer leaking by using Referrer-Policy:same-origin header (#6385)
	- Removed 'referer_check' option (#6440)
	- Use constant prefix for temp file names, don't remove temp files from other apps (#6511)
	- Ignore 'Sender' header on Reply-All action (#6506)
	- deluser.sh: Add option to delete users who have not logged in for more than X days (#6340)
	- HTML5 Upload Progress - as a replacement for the old server-side solution (#6177)
	- Update to TinyMCE 4.8.2
	- Update to jQuery-MiniColors 2.3.4
	- Prevent from using deprecated timezone names from jsTimezoneDetect
	- Force session.gc_probability=1 when using custom session handlers (#6560)
	- Support simple field labels (e.g. LetterHub examples) in csv imports (#6541)
	- Add cache busters also to images used by templates (#6610)
	- Plugin API: Added 'raise_error' hook (#6199)
	- Plugin API: Added 'common_headers' hook (#6385)
	- Plugin API: Added 'ldap_connected' hook
	- Enigma: Update to OpenPGPjs 4.2.1 - fixes user name encoding issues in key generation (#6524)
	- Enigma: Fixed multi-host synchronization of private and deleted keys and pubring.kbx file
	- Managesieve: Added support for 'editheader' extension - RFC5293 (#5954)
	- Managesieve: Fix bug where custom header or variable could be lost on form submission (#6594)
	- Markasjunk: Integrate markasjunk2 features into markasjunk - marking as non-junk + learning engine (#6504)
	- Password: Added 'modoboa' driver (#6361)
	- Password: Fix bug where password_dovecotpw_with_method setting could be ignored (#6436)
	- Password: Fix bug where new users could skip forced password change (#6434)
	- Password: Allow drivers to override default password comparisons (eg new is not same as current) (#6473)
	- Password: Allow drivers to override default strength checks (eg allow for 'not the same as last x passwords') (#246)
	- Password: Allow drivers to define password strength rules displayed to the user
	- Password: Allow separate password saving and strength drivers for use of strength checking services (#5040)
	- Password: Add zxcvbn driver for checking password strength (#6479)
	- Password: Disallow control characters in passwords
	- Password: Add support for Plesk >= 17.8 (#6526)
	- Elastic: Improved datepicker displayed always in parent window
	- Elastic: On touch devices display attachment icons on messages list (#6296)
	- Elastic: Make menu button inactive if all subactions are inactive (#6444)
	- Elastic: On mobile/tablet jump to the list on folder selection (#6415)
	- Elastic: Various improvements on mail compose screen (#6413)
	- Elastic: Support new-line char as a separator for pasted recipients (#6460)
	- Elastic: Improved UX of search dialogs (#6416)
	- Elastic: Fix unwanted thread expanding when selecting a collapsed thread in non-mobile mode (#6445)
	- Elastic: Fix too small height of mailvelope mail preview frame (#6600)
	- Elastic: Add "status bar" for mobile in mail composer
	- Elastic: Add selection options on contacts list (#6595)
	- Elastic: Fix unintentional layout preference overwrite (#6613)
	- Elastic: Fix bug where Enigma options in mail compose could sometimes be ignored (#6515)
	- Log errors caused by low pcre.backtrack_limit when sending a mail message (#6433)
	- Fix regression where drafts were not deleted after sending the message (#6756)
	- Fix so max_message_size limit is checked also when forwarding messages as attachments (#6580)
	- Fix so performance stats are logged to the main console log also when per_user_logging=true
	- Fix malformed message saved into Sent folder when using big attachments and low memory limit (#6498)
	- Fix incorrect IMAP SASL GSSAPI negotiation (#6308)
	- Fix so unicode in local part of the email address is also supported in recipient inputs (#6490)
	- Fix bug where autocomplete list could be displayed out of screen (#6469)
	- Fix style/navigation on error page depending on authentication state (#6362)
	- Fix so invalid smtp_helo_host is never used, fallback to localhost (#6408)
	- Fix custom logo size in Elastic (#6424)
	- Fix listing the same attachment multiple times on forwarded messages
	- Fix bug where a message/rfc822 part without a filename wasn't listed on the attachments list (#6494)
	- Fix inconsistent offset for various time zones - always display Standard Time offset (#6531)
	- Fix dummy Message-Id when resuming a draft without Message-Id header (#6548)
	- Fix handling of empty entries in vCard import (#6564)
	- Fix bug in parsing some IMAP command responses that include unsolicited replies (#6577)
	- Fix PHP 7.2 compatibility in debug_logger plugin (#6586)
	- Fix so ANY record is not used for email domain validation, use A, MX, CNAME, AAAA instead (#6581)
	- Fix so mime_content_type check in Installer uses files that should always be available (i.e. from program/resources) (#6599)
	- Fix missing CSRF token on a link to download too-big message part (#6621)
	- Fix bug when aborting dragging with ESC key didn't stop the move action (#6623)

	## Release 1.4-beta

	- Added new skin with mobile support - the Elastic
	- Support Redis cache
	- Email Resent (Bounce) feature (#4985)
	- Improved Mailvelope integration
	- Added private key listing and generating to identity settings
	- Enable encrypt & sign option if Mailvelope supports it
	- Allow contacts without an email address (#5079)
	- Support SMTPUTF8 and relax email address validation to support unicode in local part (#5120)
	- Support for IMAP folders that cannot contain both folders and messages (#5057)
	- Update to jQuery-3.3.1
	- Update to jQuery-minicolors 2.2.6
	- Update to TinyMCE 4.7.13
	- Remove sample PHP configuration from .htaccess and .user.ini files (#5850)
	- Extend skin_logo setting to allow per skin logos (#6272)
	- Use Masterminds/HTML5 parser for better HTML5 support (#5761)
	- Add More actions button in Contacts toolbar with Copy/Move actions (#6081)
	- Display an error when clicking disabled link to register protocol handler (#6079)
	- Add option trusted_host_patterns (#6009, #5752)
	- Support additional connect parameters in PostgreSQL database wrapper
	- Use UI dialogs instead of confirm() and alert() where possible
	- Display value of the SMTP message size limit in the error message (#6032)
	- Show message flagged status in message view (#5080)
	- Skip redundant INSERT query on successful logon when using PHP7
	- Replace display_version with display_product_version (#5904)
	- Extend disabled_actions config so it accepts also button names (#5903)
	- Handle remote stylesheets the same as remote images, ask the user to allow them (#5994)
	- Add Message-ID to the sendmail log (#5871)
	- Add option to hide folders in share/other-user namespace or outside of the personal namespace root (#5073)
	- Archive: Fix archiving by sender address on cyrus-imap
	- Archive: Style Archive folder also on folder selector and folder manager lists
	- Archive: Add Thunderbird compatible Month option (#5623)
	- Archive: Create archive folder automatically if it's configured, but does not exist (#6076)
	- Enigma: Add button to send mail unencrypted if no key was found (#5913)
	- Enigma: Add options to set PGP cipher/digest algorithms (#5645)
	- Enigma: Multi-host support
	- Managesieve: Add ability to disable filter sets and other actions (#5496, #5898)
	- Managesieve: Add option managesieve_forward to enable settings dialog for simple forwarding (#6021)
	- Managesieve: Support filter action with custom IMAP flags (#6011)
	- Managesieve: Support 'mime' extension tests - RFC5703 (#5832)
	- Managesieve: Support GSSAPI authentication with krb_authentication plugin (#5779)
	- Managesieve: Support enabling the plugin for specified hosts only (#6292)
	- Password: Support host variables in password_db_dsn option (#5955)
	- Password: Automatic virtualmin domain setting, removed password_virtualmin_format option (#5759)
	- Password: Added password_username_format option (#5766)
	- subscriptions_option: show \\Noselect folders greyed out (#5621)
	- zipdownload: Added option to define size limit for multiple messages download (#5696)
	- vcard_attachments: Add possibility to send contact vCard from Contacts toolbar (#6080)
	- Changed defaults for smtp_user (%u), smtp_pass (%p) and smtp_port (587)
	- Composer: Fix certificate validation errors by using packagist only (#5148)
	- Add --get and --extract arguments and CACHEDIR env-variable support to install-jsdeps.sh (#5882)
	- Support _filter and _scope as GET arguments for opening mail UI (#5825)
	- Various improvements for templating engine and skin behaviours
	- Support conditional include
	- Support for 'link' objects
	- Support including files with path relative to templates directory
	- Use <button> instead of <input> for submit button on logon screen
	- Support skin localization (#5853)
	- Reset onerror on images if placeholder does not exist to prevent from requests storm
	- Unified and simplified code for loading content frame for responses and identities
	- Display contact import and advanced search in popup dialogs
	- Display a dialog for mail import with supported format description and upload size hint
	- Make possible to set (some) config options from a skin
	- Added optional checkbox selection for the list widget
	- Make 'compose' command always enabled
	- Add .log suffix to all log file names, add option log_file_ext to control this (#313)
	- Return "401 Unauthorized" status when login fails (#5663)
	- Support both comma and semicolon as recipient separator, drop recipients_separator option (#5092)
	- Plugin API: Added 'show_bytes' hook (#5001)
	- Add option to not indent quoted text on top-posting reply (#5105)
	- Removed global $CONFIG variable
	- Removed debug_level setting
	- Support AUTHENTICATE LOGIN for IMAP connections (#5563)
	- Support LDAP GSSAPI authentication (#5703)
	- Localized timezone selector (#4983)
	- Use 7bit encoding for ISO-2022-* charsets in sent mail (#5640)
	- Handle inline images also inside multipart/mixed messages (#5905)
	- Allow style tags in HTML editor on composed/reply messages (#5751)
	- Use Github API as a fallback to fetch js dependencies to workaround throttling issues (#6248)
	- Show confirm dialog when moving folders using drag and drop (#6119)
	- Fix bug where new_user_dialog email check could have been circumvented by deleting / abandoning session (#5929)
	- Fix skin extending for assets (#5115)
	- Fix handling of forwarded messages inside of a TNEF message (#5632)
	- Fix bug where attachment size wasn't visible when the filename was too long (#6033)
	- Fix checking table columns when there's more schemas/databases in postgres/mysql (#6047)
	- Fix css conflicts in user interface and e-mail content (#5891)
	- Fix duplicated signature when using Back button in Chrome (#5809)
	- Fix touch event issue on messages list in IE/Edge (#5781)
	- Fix so links over images are not removed in plain text signatures converted from HTML (#4473)
	- Fix various issues when downloading files with names containing non-ascii chars, use RFC 2231 (#5772)

	## Release 1.3.8

	- Fix PHP warnings on dummy QUOTA responses in Courier-IMAP 4.17.1 (#6374)
	- Fix so fallback from BINARY to BODY FETCH is used also on [PARSE] errors in dovecot 2.3 (#6383)
	- Enigma: Fix deleting keys with authentication subkeys (#6381)
	- Fix invalid regular expressions that throw warnings on PHP 7.3 (#6398)
	- Fix so Classic skin splitter does not escape out of window (#6397)
	- Fix XSS issue in handling invalid style tag content [CVE-2018-19206] (#6410)
	- Fix compatibility with MySQL 8 - error on 'system' table use
	- Managesieve: Fix bug where show_real_foldernames setting wasn't respected (#6422)
	- New_user_identity: Fix %fu/%u vars substitution in user specific LDAP params (#6419)
	- Fix support for "allow-from <uri>" in "x_frame_options" config option (#6449)
	- Fix bug where valid content between HTML comments could have been skipped in some cases (#6464)
	- Fix multiple VCard field search (#6466)
	- Fix session issue on long running requests (#6470)

	## Release 1.3.7

	- Fix PHP Warning: Use of undefined constant IDNA_DEFAULT on systems without php-intl (#6244)
	- Fix bug where some parts of quota information could have been ignored (#6280)
	- Fix bug where some escape sequences in html styles could bypass security checks
	- Fix bug where some forbidden characters on Cyrus-IMAP were not prevented from use in folder names
	- Fix bug where only attachments with the same name would be ignored on zip download (#6301)
	- Fix bug where unicode contact names could have been broken/emptied or caused DB errors (#6299)
	- Fix bug where after "mark all folders as read" action message counters were not reset (#6307)
	- Enigma: [EFAIL] Don't decrypt PGP messages with no MDC protection (#6289)
	- Fix bug where some HTML comments could have been malformed by HTML parser (#6333)

	## Release 1.3.6

	- Fix parsing date strings (e.g. from a Date: mail header) with comments (#6216)
	- Fix PHP 7.2: count(): Parameter must be an array in enchant-based spellchecker (#6234)
	- Fix possible IMAP command injection and type juggling vulnerabilities (#6229)
	- Enigma: Fix key selection for signing
	- Enigma: Enable keypair generation on Internet Explorer 11
	- Fix check_request() bypass in places using get_uids() [CVE-2018-9846] (#6238)
	- Fix bug where usernames without domain part could be malformed or converted to lower-case on logon (#6224)

	## Release 1.3.5

	- Managesieve: Fix bug where text: syntax was forced for strings longer than 1024 characters (#6143)
	- Managesieve: Fix missing Save button in Edit Filter Set page of Classic skin (#6154)
	- Fix duplicated labels in Test SMTP Config section (#6166)
	- Fix PHP Warning: exif_read_data(...): Illegal IFD size (#6169)
	- Enigma: Fix key generation in Safari by upgrade to OpenPGP 2.6.2 (#6149)
	- Fix security issue in remote content blocking on HTML image and style tags (#6178)
	- Added 9pt and 11pt to the list of font sizes in HTML editor
	- Fix handling encoding of HTML tags in "inline" JSON output (#6207)
	- Fix bug where some unix timestamps were not handled correctly by rcube_utils::anytodatetime() (#6212)

	## Release 1.3.4

	- Fix bug where contacts search could skip some records (#6130)
	- Fix possible information leak - add more strict sql error check on user creation (#6125)
	- Fix a couple of warnings on PHP 7.2 (#6098)
	- Fix broken long filenames when using imap4d server - workaround server bug (#6048)
	- Fix so temp_dir misconfiguration prints an error to the log (#6045)
	- Fix untagged COPYUID responses handling - again (#5982)
	- Fix PHP warning "idn_to_utf8(): INTL_IDNA_VARIANT_2003 is deprecated" with PHP 7.2 (#6075)
	- Fix bug where Archive folder wasn't auto-created on login with create_default_folders=true
	- Fix performance issue when parsing malformed and long Date header (#6087)
	- Fix syntax error in mssql.initial.sql (#6097)
	- Fix bug where contacts export by selection returned no more than 10 entries (#6103)
	- Fix searching contacts by address in LDAP source (#6084)
	- Fix X-Frame-Options:ALLOW-FROM support, remove custom click-jacking protection (#6057)

	## Release 1.3.3

	- Fix decoding of mailto: links with + character in HTML messages (#6020)
	- Fix false reporting of failed upgrade in installto.sh (#6019)
	- Fix file disclosure vulnerability caused by insufficient input validation [CVE-2017-16651] (#6026)
	- Fix mangled non-ASCII characters in links in HTML messages (#6028)

	## Release 1.3.2

	- Fix bug where pink image was used instead of a thumbnail when image resize fails (#5933)
	- Fix so files size/count limit is verified (client-side) also on drag-n-drop uploads (#5940)
	- Fix invalid template loading on a message error in preview frame (#5941)
	- Fix bug where HTML messages could have been rendered empty on some systems (#5957)
	- Fix wording of "Mark previewed messages as read" to "Mark messages as read" (#5952)
	- Enigma: Fix decryption of messages encoded with non-ascii charset (#5962)
	- Fix missing cursor in HTML editor on mail reply (#5969)
	- Fix (again) bug where image data URIs in css style were treated as evil/remote in mail preview (#5580)
	- Fix bug where mail search could return empty result on servers without SORT capability (#5973)
	- Fix bug where assets_path wasn't added to some watermark frames
	- Fix so untagged COPYUID responses are also supported according to RFC6851 (#5982)
	- Fix issue caused by non-default session.cookie_lifetime setting (#5961)
	- Fix Edge encoding bug when pasting text into the HTML editor, update to TinyMCE 4.5.8 (#5885)
	- Fix handling of unknown Content-Disposition type (#6002)
	- Fix truncated folder name on messages list in multi-folder mode, for folders with non-ascii characters (#6004)
	- Fix bug where removing the last subfolder did not hide toggle button on its parent record (#6007)
	- Fix bug where ghost messages could be added to the list after fast delete (#5941)

	## Release 1.3.1

	- Add Preferences > Mailbox View > Main Options > Layout (#5829)
	- Password: Fix compatibility with PHP 7+ in cpanel_webmail driver (#5820)
	- Managesieve: Fix parsing dot-staffed lines in multiline text (#5838)
	- Managesieve: Fix AM/PM suffix in vacation time selectors
	- Managesieve: Fix bug where 'exists' operator was reset to 'contains' (#5899)
	- Remove non-printable characters from filenames on download/display (#5880)
	- Fix decoding non-ascii attachment names from TNEF attachments (#5646, #5799)
	- Fix uninitialized string offset in rcube_utils::bin2ascii() and make sure rcube_utils::random_bytes() result has always requested length (#5788)
	- Fix bug where HTML messages with @media styles could modify style of page body (#5811)
	- Fix style issue on selected and unfocused message that is part of a thread (#5798)
	- Fix bug where a.button style from managesieve plugin could impact other elements (#5800)
	- Fix position of selected icon for (Mailvelope) Encrypt button
	- Fix fatal error when using DMY- or MDY-based date format in PostgreSQL (#5808)
	- Fix bug where errors were not printed when using bin/update.sh (#5834)
	- Fix PHP 7.2 warnings on count() use (#5845)
	- Fix bug where Chrome could not upload the same file that was selected before (#5854)
	- Fix duplicate messages on the list after deleting messages on the next to the last page (#5862)
	- Fix bug where messages count was not updated after delete when imap_cache is set (#5872)
	- Fix potential XSS vulnerability with malformed HTML message markup
	- Fix sending message with "Too many public recipients" dialog buttons (#5924)
	- Bring back double-click behavior on the message list which was removed in 1.3.0 (#5823)
	- Enigma: Fix decrypting an encrypted+signed message when signature verification fails (#5914)

	## Release 1.3.0

	- Update to TinyMCE 4.5.7
	- Fix bug where invalid recipients could be silently discarded (#5739)
	- Fix conflict with _gid cookie of Google Analytics (#5748)
	- Print error from CLI scripts when system/exec function is disabled (#5744)
	- Fix bug where comment notation within style tag would cause the whole style to be ignored (#5747)
	- Fix bug where it wasn't possible to scroll folders list in Edge (#5750)
	- Fix folders list sorting on Windows - if php-intl is available (#5732)
	- Fix addressbook searching by gender (#5757)
	- Fix prevention from using % and * characters in folder name (#5762)
	- Fix POST parameter reflection in default_charset selector (#5768)
	- Enigma: Fix compatibility with assets_dir
	- Managesieve: Skip redundant LISTSCRIPTS command
	- Fix SQL syntax error on MariaDB 10.2 (#5774)
	- Fix bug where zipdownload ignored files with the same name (#5777)
	- Fix bug where it wasn't possible to set timezone to auto-detected value (#5782)

	## Release 1.3-rc

	- "Flattened" the larry theme: fresher look by removing shadows and gradients
	- Support logging to php://stdout (#5721)
	- Add support for DelSp=Yes in format=flowed messages (#5702)
	- Update to jQuery 3.2.1
	- Update to TinyMCE 4.5.6
	- Plugin API: Call message_part_structure hook for sub-parts of multipart/alternative message (#5678)
	- Enigma: Always use detached signatures (#5624)
	- Enigma: Fix handling of messages with nested PGP encrypted parts (#5634)
	- Minimize unwanted message loading in preview frame on drag (#5616)
	- Fix failing database schema check in all engines except mysql (#5730)
	- Fix autocomplete popup closing with click outside the input, don't handle Tab key as Enter (#5606)
	- Fix jsdeps.json synchronization on update, warn about missing requirements of install-jsdeps.sh (#5598)
	- Fix missing thread expand icon on search result in widescreen mode (#5613)
	- Fix bug where image data URIs in css style were treated as evil/remote in mail preview (#5580)
	- Fix bug where external content in src attribute of input/video tags was not secured (#5583)
	- Fix PHP error on update of a contact with multiple email addresses when using PHP 7.1 (#5587)
	- Fix bug where mail content frame couldn't be reset in some corner cases (#5608)
	- Fix bug where some classic skin images were not displayed in IE/Edge (#5614)
	- Fix bug where signature couldn't be added above the quote in Firefox 51 (#5628)
	- Fix regression where groups with email address were resolved to its members' addresses
	- Fix update of group name in the contacts list header on group rename (#5648)
	- Add rewrite rule to disable access to /vendor/bin folder in .htaccess (#5630)
	- Fix bug where it was too easy accidentally move a folder when using the subscription checkbox (#5655)
	- Managesieve: Fix parser issue with empty lines between comments (#5657)
	- Managesieve: Fix possible defect in handling \r\n in scripts (#5685)
	- Fix/rephrase "unsaved changes" warning when cancelling a draft (#5610)
	- Fix XSS issue in handling of a style tag inside of an svg element [CVE-2017-6820]
	- Fix bug where settings/upload.inc could not be used by plugins (#5694)
	- Fix regression in LDAP fuzzy search where it always used prefix search instead (#5713)
	- Fix bug where namespace prefix could not be truncated on folders list if show_real_foldernames=true (#5695)
	- Fix undesired effects when postgres database uses different timezone than PHP host (#5708)
	- Installer: Fix DB schema initialization on MS SQL Server
	- Fix bug where base_dn setting was ignored inside group_filters (#5720)
	- Password: Fix security issue in virtualmin and sasl drivers [CVE-2017-8114]

	## Release 1.3-beta

	- Nicely handle contact deletion on contact edit (#5522)
	- vcard_attachments: Add possibility to attach contact vCard to composed message (#4997)
	- Preserve message internal/received date on import in mbox format (#5559)
	- Zipdownload: Fix date format in mbox "From line"
	- Possibility to display QR code for contacts data (#5030)
	- Added identicon plugin
	- Widescreen layout aka three column view (#5093)
	- Unify automatic marking as \Seen in preview pane, full-page and extwin views (#5071)
	- Disable double-click on the list when preview pane is on (#5199)
	- Support hostname and hostname:port in force_https option (#5511)
	- Support ALLOW-FROM in x_frame_options (#5122)
	- Allow to omit a subject when sending an email (#5068)
	- Warn about too many disclosed recipients in composed email [max_disclosed_recipients] (#5132)
	- identity_select: Support Received header (#5085)
	- Plugin API: Added get_compose_responses hook (#5457)
	- Display error when trying to upload more files than specified in max_file_uploads (#5483)
	- Add missing sql upgrade file for 'ip' column resize in session table (#5465)
	- Do not show inline images of unsupported mimetype (#5463)
	- Password: Added replacement variables support in password_pop_host (#5539)
	- Password: Don't store passwords in temp files when using dovecotpw (#5531)
	- Password: Added LDAP PPolicy driver (#5364)
	- Password: Added cpanel_webmail driver (#5549)
	- Password: Added possibility to nicely redirect from other plugins on password expiration (#5468)
	- Implement separate action to mark all messages in a folder as \Seen (#5006)
	- Implement marking as \Seen in all folders or in a folder and its subfolders (#5076)
	- Archive: Don't reload messages list when it's not needed (#5225)
	- Archive: Add option to automatically mark archived messages as \Seen (#5142)
	- Improve randomness of password salts and random hashes (#5266)
	- Password/cPanel: Add support for hash authentication and reseller accounts (#5252)
	- Support host-specific imap_conn_options/smtp_conn_options/managesieve_conn_options (#5136)
	- Center and scale images in attachment preview frame (#5421)
	- Added max_message_size option enforced when attaching files to a composed message (#4993)
	- Added Search button in quick search menus (#5312)
	- Implement "one click" attachment/messages/photo upload (#5024)
	- Squirrelmail_usercopy: Add option to define character set of data files
	- Removed useless 'created' column from 'session' table (#5389)
	- Dropped legacy browsers support (#5167)
	- Removed legacy_browser plugin
	- Removed hacks for IE < 10
	- Update to jQuery 3.1.1 and jQuery-UI 1.12.0
	- compile .min.js files with ECMASCRIPT5 option
	- Require PHP >= 5.4
	- Add possibility to preview and download attachments in mail compose (#5053)
	- Add possibility to rename attachments in mail compose (#4996)
	- Remove backward compatibility "layer" of bc.php (#4902)
	- Support WEBP images in mail messages (#5362)
	- Support MathML in HTML message preview (#5182)
	- Rename Addressbook to Contacts (#5233)
	- Remove PHP mail() support, smtp_server is required now (#5340)
	- Display full message subject in onmouseover on truncated subject in mail view (#5346)
	- Enigma: Support GnuPG 2.1 (#5313)
	- Enigma: Support key generation for multiple identities (#5383)
	- Enigma: Import keys from key-server(s) (#5286)
	- Enigma: Search missing public keys on a key-server in mail compose (#5286)
	- Enigma: Delete user keys when using deluser.sh script
	- Enigma: Fix redundant list-secret-keys/list-public-keys calls on signing/encryption
	- Enigma: Implement PGP encryption and signing in one go (#5302)
	- Enigma: Display signature verification status for encrypted+signed messages (#5302)
	- Display different attachment icon on encrypted messages
	- Display different confirmation text when moving messages to Trash (#5220)
	- Indicate that a collapsed thread has flagged children (#5013)
	- Implemented message/rfc822 attachment preview
	- Update to jsTimezoneDetect 1.0.6
	- Managesieve: Add (optional) RAW script editor (#5414)
	- Managesieve: Add option to automatically set vacation :from address (#5428)
	- Managesieve: Support 'string' test from variables extension [RFC 5229] (#5248)
	- Managesieve: Support 'duplicate' extension [RFC 7352]
	- Managesieve: Unhide advanced rule controls if there are inputs with errors
	- Managesieve: Display warning message when filter form contains errors
	- Control search engine crawlers via X-Robots-Tag header instead of <meta> and robots.txt (#5098)
	- Fixed redundancy in sql caching system and compatibility with Galera Cluster (#5439)
	- Removed redundant 'created' column from cache and cache_shared tables
	- Removed use of redundant data records
	- Added missing primary keys (dictionary, cache, cache_shared tables)
	- Fix so templating system does not mess with external (e.g. email) content (#5499)
	- Fix redundant keep-alive/refresh after session error on compose page (#5500)
	- Managesieve: Fix handling of scripts with nested rules (#5540)
	- Fix variable substitution in ldap host for some use-cases, e.g. new_user_identity (#5544)
	- Enigma: Fix PHP fatal error when decrypting a message with invalid signature (#5555)
	- Fix adding images to new identity signatures
	- Fix rsync error handling in installto.sh script (#5562)
	- Fix some advanced search issues with multiple addressbooks (#5572)
	- Fix so group/addressbook selection is retained on page refresh

	## Release 1.2.3

	- Searching in both contacts and groups when LDAP addressbook with group_filters option is used
	- Fix vulnerability in handling of mail()'s 5th argument
	- Fix To: header encoding in mail sent with mail() method (#5475)
	- Fix flickering of header topline in min-mode (#5426)
	- Fix bug where folders list would scroll to top when clicking on subscription checkbox (#5447)
	- Fix decoding of GB2312/GBK text when iconv is not installed (#5448)
	- Fix regression where creation of default folders wasn't functioning without prefix (#5460)
	- Enigma: Fix bug where last records on keys list were hidden (#5461)
	- Enigma: Fix key search with keyword containing non-ascii characters (#5459)
	- Fix bug where deleting folders with subfolders could fail in some cases (#5466)
	- Fix bug where IMAP password could be exposed via error message (#5472)
	- Fix bug where it wasn't possible to store more that 2MB objects in memcache/apc,
	Added memcache_max_allowed_packet and apc_max_allowed_packet settings (#5452)
	- Fix "Illegal string offset" warning in rcube::log_bug() on PHP 7.1 (#5508)
	- Fix storing "empty" values in rcube_cache/rcube_cache_shared (#5519)
	- Fix missing content check when image resize fails on attachment thumbnail generation (#5485)
	- Fix displaying attached images with wrong Content-Type specified (#5527)

	## Release 1.2.2

	- Enigma: Add possibility to configure gpg-agent binary location (enigma_pgp_agent)
	- Enigma: Fix signature verification with some IMAP servers, e.g. Gmail, DBMail (#5371)
	- Enigma: Make recipient key searches case-insensitive (#5434)
	- Fix regression in resizing JPEG images with Imagick (#5376)
	- Managesieve: Fix parsing of vacation date-time with non-default date_format (#5372)
	- Use SymLinksIfOwnerMatch in .htaccess instead of FollowSymLinks disabled on some hosts for security reasons (#5370)
	- Wash position:fixed style in HTML mail for better security (#5264)
	- Fix bug where memcache_debug didn't work for session operations
	- Fix bug where Message-ID domain part was tied to username instead of current identity (#5385)
	- Fix bug where blocked.gif couldn't be attached to reply/forward with insecure content
	- Fix E_DEPRECATED warning when using Auth_SASL::factory() (#5401)
	- Fix bug where names of downloaded files could be malformed when derived from the message subject (#5404)
	- Fix so "All" messages selection is reset on search reset (#5413)
	- Fix bug where folder creation could fail if personal namespace contained more than one entry (#5403)
	- Fix error causing empty INBOX listing in Firefox when using an URL with user:password specified (#5400)
	- Fix PHP warning when handling shared namespace with empty prefix (#5420)
	- Fix so folders list is scrolled to the selected folder on page load (#5424)
	- Fix so when moving to Trash we make sure the folder exists (#5192)
	- Fix displaying size of attachments with zero size
	- Fix so "Action disabled" error uses more appropriate 404 code (#5440)

	## Release 1.2.1

	- Update TinyMCE to version 4.3.13 (#5309)
	- Fix bug where errors could have been not logged when per_user_logging=true
	- Fix bug where message list columns could be in wrong order after column drag-n-drop and list sorting
	- Fix so minified publickey.js (with cache-buster) is used when available (#5254)
	- Fix (replace) application/x-tar file extension test as it might not exist in nginx config (#5253)
	- Fix PHP warning when password_hosts is set, but is not an array (#5260)
	- Fix redundant keep-alive requests when session_lifetime is greater than ~20000 (#5273)
	- Fix so subfolders of INBOX can be set as Archive (#5274)
	- Fix bug where multi-folder search could choose a wrong folder in "this and subfolders" scope (#5282)
	- Fix bug where multi-folder search didn't work for unsubscribed INBOX (#5259)
	- Fix bug where "no body" alert could be displayed when sending mailvelope email
	- Enigma: Fix keys import from inside of an encrypted message (#5285)
	- Enigma: Fix malformed signed messages with force_7bit=true (#5292)
	- Enigma: Add possibility to configure gpg binary location (enigma_pgp_binary)
	- Enigma: Add possibility to export private keys (#5321)
	- Fix searching by email address in contacts with multiple addresses (#5291)
	- Fix handling of --delete argument in moduserprefs.sh script (#5296)
	- Workaround PHP issue by calling closelog() on script shutdown when using log_driver=syslog (#5289)
	- Fix so upgrade script makes sure program/lib directory does not contain old libraries (#5287)
	- Fix subscription checkbox state on error in folder subscribe/unsubscribe action (#5243)
	- Fix bug where microsecond format in logged date didn't work in some cases
	- Fix conflict in new_user_dialog and password_force_new_user settings (#5275)
	- Don't create multipart/alternative messages with empty text/plain part (#5283)
	- Use contact_search_name format in popup on results in compose contacts search
	- Fix handling of 'mailto' and 'error' arguments in message_before_send hook (#5347)
	- Fix missing localization of HTML editor when assets_dir != INSTALL_PATH
	- Fix handling of blockquote tags with mixed case on html2text conversion (#5363)
	- Fix javascript errors in IE on page with iframe that points to another domain

	## Release 1.2.0

	- Enigma: Added enigma_debug option
	- Fix message list multi-select/deselect issue (#5219)
	- Fix bug where getting HTML editor content could steal focus from other form controls (#5223)
	- Fix bug where contact search menu fields where always unchecked in Larry skin
	- Fix autoloading of 'html' class
	- Fix bug where Encrypt button appears when switching editor to HTML (#5235)
	- Fix XSS issue in href attribute on area tag (#5240)

	## Release 1.2-rc

	- Managesieve: Refactored script parser to be 100x faster
	- Enigma: added option to force users to use signing/encryption
	- Enigma: Added option to attach public keys to sent mail (#5152)
	- Enigma: Handle messages with text before an encrypted block (#5149)
	- Enigma: Handle encrypted/signed content inside message/rfc822 attachments
	- Enigma: Fix missing html/plain switch on multipart/signed messages (#4963)
	- Enigma: Disable format=flowed for signed plain text messages (#4960)
	- Enigma: Fix handling of encrypted + signed messages (#4950)
	- Enigma: Fix invalid boundary use in signed messages structure
	- Enable use of TLSv1.1 and TLSv1.2 for IMAP (#4955)
	- Save copy of original .htaccess file when using installto.sh script (#4947)
	- Fix regression where some message attachments could be missing on edit/forward (#4939)
	- Fix regression in displaying contents of message/rfc822 parts (#4937)
	- Fix handling of message/rfc822 attachments on replies and forwards (#4938)
	- Fix PDF support detection in Firefox > 19 (#4941)
	- Fix path traversal vulnerability in setting a skin [CVE-2015-8770] (#4945)
	- Fix so drag-n-drop of text (e.g. recipient addresses) on compose page actually works (#4944)
	- Fix .htaccess rewrite rules to not block .well-known URIs (#4943)
	- Fix mail view scaling on iOS (#4915)
	- Fix PHP7 warning "session_start(): Session callback expects true/false return value" (#4948)
	- Fix XSS issue in SVG images handling [CVE-2015-8864, CVE-2016-4068] (#4949)
	- Fix missing language name in "Add to Dictionary" request in HTML mode (#4951)
	- Fix (again) security issue in DBMail driver of password plugin [CVE-2015-2181] (#4958)
	- Fix bug where Archive/Junk buttons were not active after page jump with select=all mode (#4961)
	- Fix bug in long recipients list parsing for cases where recipient name contained @-char (#4964)
	- Plugin API: Added addressbook_export hook
	- Fix additional_message_headers plugin compatibility with Mail_Mime >= 1.9 (#4966)
	- Hide DSN option in Preferences when smtp_server is not used (#4967)
	- Fix handling of body parameter in mail compose request
	- Protect download urls against CSRF using unique request tokens [CVE-2016-4069] (#4957)
	- newmail_notifier: Refactor desktop notifications
	- Fix so contactlist_fields option can be set via config file
	- Fix so SPECIAL-USE assignments are forced only until user sets special folders (#4782)
	- Fix performance in reverting order of THREAD result
	- Fix converting mail addresses with @www. into mailto links (#5197)

	## Release 1.2-beta

	- Update TinyMCE to version 4.2
	- Added support for Redis session handler
	- Removed some deprecated methods: https://github.com/roundcube/roundcubemail/commit/454b0b1c
	- Remove backward compatibility "layer" of bc.php (#4902)
	- Add possibility to define date format in write operations for ldap attributes (#3956)
	- Display attachment size in compose (#1329)
	- Added possibility to drag-n-drop attachments from mail preview to compose window
	- Implemented mail messages searching with predefined date interval
	- PGP encryption support via Mailvelope integration
	- PGP encryption support via Enigma plugin
	- PHP7 compatibility fixes (#4836)
	- Security: Added brute-force attack prevention via login rate limit (#4922)
	- Security: Added options to validate username/password on logon (#4884)
	- Security: Improve randomness of security tokens (#4899)
	- Security: Use random security tokens instead of hashes based on encryption key (#4829)
	- Security: Improved encrypt/decrypt methods with option to choose the cipher_method (#4492)
	- Make optional adding of standard signature separator - sig_separator (#3276)
	- Optimize folder_size() on Cyrus IMAP by using special folder annotation (#4894)
	- Make optional hiding of folders with name starting with a dot - imap_skip_hidden_folders (#4870)
	- Add option to enable HTML editor always, except when replying to plain text messages (#4352)
	- Emoticons: Added option to switch on/off emoticons in compose editor (#2076)
	- Emoticons: Added option to switch on/off emoticons in plain text messages
	- Emoticons: All emoticons-related functionality is handled by the plugin now
	- Installer: Add button to save generated config file in system temp directory (#3553)
	- Remove common subject prefixes Re:, Re[x]:, Re-x: on reply (#4882)
	- Added GSSAPI/Kerberos authentication plugin - krb_authentication
	- Password: Allow temporarily disabling the plugin functionality with a notice
	- Require Mbstring and OpenSSL extensions (#5166)
	- Add --config and --type options to moduserprefs.sh script (#4651)
	- Implemented memcache_debug and apc_debug options
	- Installer: Remove system() function use (#4695)
	- Password plugin: Added 'kpasswd' driver by Peter Allgeyer
	- Add initdb.sh to create database from initial.sql script with prefix support (#4722)
	- Plugin API: Added disabled_plugins an disabled_buttons options in html_editor hook
	- Plugin API: Added html2text hook
	- Plugin API: Added message_part_body hook
	- Plugin API: Added message_ready hook
	- Plugin API: Add special onload() method to execute plugin actions before startup (session and GUI initialization)
	- Implemented UI element to jump to specified page of the messages list (#1677)
	- Fix searching of contacts to allow remote images for known senders (#4886)
	- Fix bug where clicking date column with 'arrival' sorting would switch to sorting by 'date' (#4690)
	- Fix bug where message content could overlap attachments list in Larry skin (#4876)
	- Fix so microseconds macro (u) in log_date_format works (#4855)
	- Fix so unrecognized TNEF attachments are displayed on the list of attachments (#5138)
	- Fix so database_attachments::cleanup() does not remove attachments from other sessions (#4907)
	- Fix responses list update issue after response name change (#4917)
	- Fix bug where message preview was unintentionally reset on check-recent action (#4921)
	- Fix bug where HTML messages with invalid/excessive css styles couldn't be displayed (#4905)
	- Fix redundant blank lines when using HTML and top posting (#4927)
	- Fix redundant blank lines on start of text after html to text conversion (#4928)
	- Fix HTML sanitizer to skip `<!-- node type X -->` in output (#4932)
	- Fix invalid LDAP query in ACL user autocompletion (#4934)

	## Release 1.1.3

	- Fix closing of nested menus (#4854)
	- Fix so E_DEPRECATED errors from PEAR libs are ignored by error_reporting change (#4770)
	- Fix compatibility with PHP 5.3 in rcube_ldap class (#4842)
	- Get rid of Mail_mimeDecode package dependency (#4836)
	- Fix "Importing..." message does not hide on error (#4840)
	- Fix Compose action in addressbook for results from multiple addressbooks (#4834)
	- Fix bug where some messages in multi-folder search couldn't be viewed/printed/downloaded (#4843)
	- Fix unintentional messages list page change on page switch in compose addressbook (#4844)
	- Fix race-condition in saving user preferences and loading plugin config (#4845)
	- Fix so plain text signature field uses monospace font (#4848)
	- Fix so links with href == content aren't added to links list on html to text conversion (#4847)
	- Fix handling of non-break spaces in html to text conversion (#4849)
	- Fix self-reply detection issues (#4852)
	- Fix multi-folder search result sorting by arrival date (#4858)
	- Fix so *-request@ addresses in Sender: header are also ignored on reply-all (#4860)
	- Update to TinyMCE 4.1.10 (#5164)
	- Fix draft removal after a message is sent and storing sent message is disabled (#4869)
	- Fix so imap folder attribute comparisons are case-insensitive (#4868)
	- Fix bug where new messages weren't added to the list in search mode
	- Fix wrong positioning of message list header on page scroll in Webkit browsers (#4646)
	- Fix some javascript errors in rare situations (#4853)
	- Fix error when using back button after sending an email (#4628)
	- Fix removing signature when switching to identity with an empty sig in HTML mode (#4872)
	- Disable links list generation on html-to-text conversion of identities or composed message (#4850)
	- Fix "washing" of style elements wrapped into many lines
	- Fix so input field (e.g. search box) does not loose focus on list load (#4862)
	- Fix so css of one html part does not apply to other text parts on message display (#4887)
	- Fix XSS issue in drag-n-drop file uploads [CVE-2015-8105] (#4900)
	- Fix handling of plus character in mailto: links (#4891)
	- Fix so adding CC/BCC recipients from the sidebar unhides compose form fields in Classic skin (#4874)
	- Fix so gc.sh script removes also expired sessions from sql database (#4893)
	- Fix support for Mozilla-based browsers, e.g. Pale Moon (#4895)
	- Fix various issues with Turkish (and similar) locales (#4896)
	- Fix so In-Reply-To header is set also for MDN receipts (#4897)
	- Fix missing HTTP_X_FORWARDED_FOR address in generated Received header
	- Fix issue where Content-Length of some attachments could be set to wrong value causing browser errors (#4877)

	## Release 1.1.2

	- Add new plugin hook 'identity_create_after' providing the ID of the inserted identity (#4807)
	- Add option to place signature at bottom of the quoted text even in top-posting mode [sig_below]
	- Fix handling of %-encoded entities in mailto: URLs (#4799)
	- Fix zipped messages downloads after selecting all messages in a folder (#4797)
	- Fix vpopmaild driver of password plugin
	- Fix PHP warning: Non-static method PEAR::setErrorHandling() should not be called statically (#4798)
	- Fix tables listing routine on mysql and postgres so it skips system or other database tables and views (#4796)
	- Fix message list header in classic skin on window resize in Internet Explorer (#4732)
	- Fix so text/calendar parts are listed as attachments even if not marked as such (#4795)
	- Fix lack of signature separator for plain text signatures in html mode (#4802)
	- Fix font artifact in Google Chrome on Windows (#4803)
	- Fix bug where forced extwin page reload could exit from the extwin mode (#4801)
	- Fix bug where some unrelated attachments in multipart/related message were not listed (#4805)
	- Fix mouseup event handling when dragging a list record (#4808)
	- Fix bug where preview_pane setting wasn't always saved into user preferences (#4809)
	- Fix bug where messages count was not updated after message move/delete with skip_deleted=false (#4814)
	- Fix security issue in contact photo handling (#4817)
	- Fix possible memcache/apc cache data consistency issues (#4820)
	- Fix bug where imap_conn_options were ignored in IMAP connection test (#4822)
	- Fix bug where some files could have "executable" extension when stored in temp folder (#4815)
	- Fix attached file path unsetting in database_attachments plugin (#4823)
	- Fix issues when using moduserprefs.sh without --user argument (#4825)
	- Fix potential info disclosure issue by protecting directory access (#4816)
	- Fix blank image in html_signature when saving identity changes (#4833)
	- Installer: Use openssl_random_pseudo_bytes() (if available) to generate des_key (#4827)
	- Fix XSS vulnerability in _mbox argument handling (#4837)

	## Release 1.1.1

	- ACL: Allow other plugins to adjust the list of permissions and groups to edit
	- Add possibility to print contact information (of a single contact)
	- Add possibility to configure max_allowed_packet value for all database engines (#4772)
	- Improved handling of storage errors after message is sent
	- Update to TinyMCE 4.1.9
	- Unified request* event arguments handling, added support for _unlock and _action parameters
	- Security: Generate random hash for the per-user local storage prefix (#4768)
	- Fix refreshing of drafts list when sending a message which was saved in meantime (#4745)
	- Fix saving/sending emoticon images when assets_dir is set
	- Fix PHP fatal error when visiting Vacation interface and there's no sieve script yet (#4778)
	- Fix setting max packet size for DB caches and check packet size also in shared cache
	- Fix needless security warning on BMP attachments display (#4771)
	- Fix handling of some improper constructs in format=flowed text as per the RFC3676[4.5] (#4773)
	- Fix performance of rcube_db_mysql::get_variable()
	- Fix missing or not up-to-date CATEGORIES entry in vCard export (#4766)
	- Fix fatal errors on systems without mbstring extension or mb_regex_encoding() function (#4769)
	- Fix cursor position on reply below the quote in HTML mode (#4759)
	- Fix so "over quota" errors are displayed also in message compose page
	- Fix duplicate entries suppression in autocomplete result (#4776)
	- Fix "Non-static method PEAR::isError() should not be called statically" errors (#4770)
	- Fix parsing invalid HTML messages with BOM after `<!DOCTYPE>` (#4777)
	- Fix duplicate entry on timezones list in rcube_config::timezone_name_from_abbr() (#4779)
	- Fix so localized folder name is displayed in multi-folder search result (#4750)
	- Fix javascript error after creating a folder which is a subfolder of another one (#4781)
	- Fix bug where subject of sent/saved message was removed if mbstring wasn't installed (#4780)
	- Fix missing vcard_attachment icon on messages list (#4783)
	- Fix storing signatures with big images in MySQL database (#4785)
	- Fix Opera browser detection in javascript (#4786)
	- Fix so search filter, scope and fields are reset on folder change
	- Fix rows count when messages search fails (#4760)
	- Fix bug where spellchecking in HTML editor do not work after switching editor type more than once (#4789)
	- Fix bug where TinyMCE area height was too small on slow network connection (#4788)
	- Fix backtick character handling in sql queries (#4790)
	- Fix redirect URL for attachments loaded in an iframe when behind a proxy (#4724)
	- Fix menu container references to point to the actual `<ul>` element (#4791)
	- Fix javascripts errors in IE8 - lack of Event.which, focusing a hidden element (#4793)

	## Release 1.1.0

	- Make SMTP error log more verbose - include server response and error code
	- Fix download options menu (added by zipdownload plugin) in classic skin (#4740)
	- Fix blocked.gif image usage with assets_dir set
	- Fix bug where max_group_members was ignored when adding a new contact (#4733)
	- Hide MDN and DSN options in compose if disabled by admin (#4735)
	- Fix checks based on window.ActiveXObject in IE > 10
	- Fix XSS issue in style attribute handling [CVE-2015-1433] (#4739)
	- Fix bug where Drafts list wasn't updated on draft-save action in new window (#4737)
	- Fix so "set as default" option is hidden if identities_level > 1 (#4738)
	- Fix bug where search was reset after returning from compose visited for reply
	- Fix javascript error in "IE 8.0/Tablet PC" browser (#4730)
	- Fix bug where Reply-To address was ignored on reply to messages sent by self (#4742)
	- Fix bug where empty fieldmap config entries caused empty results of ldap search (#4741)
	- Fix bug where drafts list wasn't refreshed after draft message was sent from another window (#4745)
	- Fix keyboard navigation and css in datepicker widget across many Firefox versions
	- Fix false warning when opening attached text/plain files (#4748)
	- Fix bug where signature could have been inserted twice after plain-to-html switch (#4746)
	- Fix security issue in DBMail driver of password plugin (#4757)
	- Enable FollowSymLinks option in .htaccess file which is required by rewrite rules (#4754)
	- Fix so JSON.parse() errors on localStorage items are ignored (#4752)

	## Release 1.1-rc

	- Update jQuery to version 2.1.3
	- Allow to override any config option through env variables
	- Improve system security by using optional special URL with security token - use_secure_urls
	- Allow to define separate server/path for image/js/css files - assets_url/assets_dir
	- Sync vendor folder if exists in source package (#4700)
	- Avoid useless reloading list when resetting search with active filter (#4654)
	- Fix invalid folder selection if clicked while busy (#4709)
	- Fix import of multiple contact email addresses from Outlook-csv format (#4714)
	- Fix drag-n-drop to folders expanded while dragging (#4708)
	- Fix import of multiple contact groups from Google-csv format (#4710)
	- Fix import of contacts with multiple email addresses from Google-csv format (#4719)
	- Fix bugs where CSRF attacks were still possible on some requests [CVE-2014-9587]
	- Fix some rcube_utils::anytodatetime() corner cases with timezone mismatches (#4712)
	- Improve move-to and contact-export button in classic skin (#4713)
	- Fix wrong icon for download button in classic skin
	- Fix bug where sent message was saved in Sent folder even if disabled by user (#4729)

	## Release 1.1-beta

	- Fix skin path handling in plugin context (#4111)
	- Prevent memory exhaustion on image resizing with GD on Windows (#4580)
	- Add plugin hook for database table name lookups as requested in #4538
	- Added Oracle database support
	- Support contacts import in GMail CSV format
	- Added namespace filter in Folder Manager
	- Added folder searching in Folder Manager
	- Fix restoring draft messages from localStorage if editor mode differs (#4631)
	- Added config option/user preference to disable saving messages in localStorage (#4606)
	- Added config option 'imap_log_session' to enable Roundcube <-> IMAP session ID logging
	- Added config option 'log_session_id' to control the length of the session identifier in logs
	- Implemented 'storage_connected' API hook after successful IMAP login (#4638)
	- Integrate Net_LDAP3 and rcube_ldap_generic classes
	- Add option (disabled_actions) to disable UI elements/actions (#4478)
	- Support password encryption using openssl extension (#4614)
	- Create/rename groups in UI dialogs (#4592)
	- Added 'contact_search_name' option to define autocompletion entry format
	- Display quota information for current folder not INBOX only (#3442)
	- Support images in HTML signatures (#3917)
	- Display full quota information in popup (#2103, #2746)
	- Mail compose: Selecting contact inserts recipient to previously focused input - to/cc/bcc accordingly (#4487)
	- Close "no subject" prompt with Enter key (#4463)
	- Password: Add option to force new users to change their password (#2963)
	- Improve support for screen readers and assistive technology using WCAG 2.0 and WAI ARIA standards
	- Enable basic keyboard navigation throughout the UI (#3333)
	- Select/scroll to previously selected message when returning from message page (#4146)
	- Display a warning if popup window was blocked (#4472)
	- Remove (was: ...) from message subject on reply (#4359)
	- Update to TinyMCE 4.1 (#4168)
	- Enable autolink plugin in TinyMCE (#4029)
	- Support image operations with Imagick extension (#4498)
	- Support upload progress with session.upload_progress and PECL uploadprogress module (#3934)
	- Make identity name field optional (#4435)
	- Utility script to remove user records from the local database
	- Plugin API: Added message_saved hook (#4503)
	- Plugin API: Added imap_search_before hook
	- Support messages import from zip archives
	- Zipdownload: Added mbox format support (#2354)
	- Drop support for IE6, move IE7/IE8 support to legacy_browser plugin
	- Update to jQuery-2.1.1
	- Search across multiple folders (#1676)
	- Improve UI integration of ACL settings
	- Drop support for PHP < 5.3.7
	- Set In-Reply-To and References for forwarded messages (#4465)
	- Removed redundant default_folders config option (#4500)
	- Implemented IMAP SPECIAL-USE extension support [RFC6154] (#3326)
	- Optimize some framed pages content for better performance (#4517)
	- Improve text messages display and conversion to HTML (#4091)
	- Don't remove links when html signature is converted to text (#4473)
	- Fix page title when using search filter (#4636)
	- Fix mbox files import
	- Fix some character sets detection (#4694)
	- Fix so attachment charset is set in headers of forward/draft message (#4676)
	- Fix bug where wrong charset could be used for text attachment preview page (#4674)

	## Release 1.0.5

	- Fix wrong icon for download button in classic skin
	- Fix checks based on window.ActiveXObject in IE > 10
	- Fix XSS issue in style attribute handling (#4739)
	- Fix bug where Drafts list wasn't updated on draft-save action in new window (#4737)
	- Fix so "set as default" option is hidden if identities_level > 1 (#4738)
	- Fix javascript error in "IE 8.0/Tablet PC" browser (#4730)
	- Fix bug where empty fieldmap config entries caused empty results of ldap search (#4741)
	- Fix bug where sent message was saved in Sent folder even if disabled by user (#4729)

	## Release 1.0.4

	- Disable TinyMCE contextmenu plugin as there are more cons than pros in using it (#4684)
	- Fix bug where show_real_foldernames setting wasn't honored on compose page (#4705)
	- Fix issue where Archive folder wasn't protected in Folder Manager (#4706)
	- Fix compatibility with PHP 5.2. in rcube_imap_generic (#4682)
	- Fix setting flags on servers with no PERMANENTFLAGS response (#4667)
	- Fix regression in SHA password generation in ldap driver of password plugin (#4670)
	- Fix displaying of HTML messages with absolutely positioned elements in Larry skin (#4672)
	- Fix font style display issue in HTML messages with styled <span> elements (#4671)
	- Fix download of attachments that are part of TNEF message (#4668)
	- Fix handling of uuencoded messages if messages_cache is enabled (#4675)
	- Fix handling of base64-encoded attachments with extra spaces (#4678)
	- Fix handling of UNKNOWN-CTE response, try do decode content client-side (#4650)
	- Fix bug where creating subfolders in shared folders wasn't possible without ACL extension (#4680)
	- Fix reply scrolling issue with text mode and start message below the quote (#4681)
	- Fix possible issues in skin/skin_path config handling (#4689)
	- Fix lack of delimiter for recipient addresses in smtp_log (#4703)
	- Fix generation of Blowfish-based password hashes (#4721)
	- Fix bugs where CSRF attacks were still possible on some requests [CVE-2014-9587]

	## Release 1.0.3

	- Initialize HTML editor before restoring a message from localStorage (#4631)
	- Add 'sig_max_lines' config option to default config file (#5162)
	- Add config option to specify IMAP connection socket parameters - imap_conn_options (#4589)
	- Add option to set default message list mode - default_list_mode (#3157)
	- Enable contextmenu plugin for TinyMCE editor (#3062)
	- Fix insert-signature command in external compose window if opened from inline compose screen (#4663)
	- Fix some mime-type to extension mapping checks in Installer (#4610)
	- Fix errors when using localStorage in Safari's private browsing mode (#4619)
	- Fix bug where $Forwarded flag was being set even if server didn't support it (#4621)
	- Fix various iCloud vCard issues, added fallback for external photos (#4617)
	- Fix invalid Content-Type header when send_format_flowed=false (#4616)
	- Fix errors when adding/updating contacts in active search (#4630)
	- Fix incorrect thumbnail rotation with GD and exif orientation data (#4641)
	- Fix contacts list update after adding/deleting/moving a contact (#4640, #4644)
	- Fix handling of email addresses with quoted domain part (#4647)
	- Fix comm_path update on task switch (#4648)
	- Fix error in MSSQL update script 2013061000.sql (#4658)
	- Fix validation of email addresses with IDNA domains (#4661)

	## Release 1.0.2

	- Fix storing unsaved drafts in localStorage (#4529)
	- Add configurable LDAP_OPT_DEREF option (#4546)
	- Fix so when switching editor mode original version of signature is used (#4032)
	- Fix unintentional draft autosave request if autosave is disabled (#4550)
	- Fix malformed References: header in send/saved mail (#4552)
	- Fix handling unicode characters in links (#4555)
	- Fix incorrect handling of HTML comments in messages sanitization code (#4558)
	- Fix so current page is reset on list-mode change (#4561)
	- Fix so responses menu hides on click in classic skin (#4566)
	- Fix unintentional line-height style modification in HTML messages (#4567)
	- Fix broken normalize_string(), add support for ISO-8859-2 (#4568)
	- Support csv contacts import in German localization (#4570)
	- Fix so message list and counters are updated when a message is opened in new window (#4569)
	- Fix malformed recipient name when composing a message by clicking on mailto link (#4583)
	- Fix list reload after sending message in another window (#4576)
	- Fix so address format errors are ignored when saving a draft (#4594)
	- Fix incorrect label translation in return receipt (#4598)
	- Fix security issue in delete-response action - allow only ajax request
	- Fix Delete button state after deleting identity/response (#4603)
	- Fix bug where contacts with no email address were listed on compose addressbook (#4602)
	- Fix images import from various vCard formats (#4604)
	- Fix sorting messages by size on servers without SORT capability (#4608)

	## Release 1.0.1

	- Support 'error' and 'body_file' return attribs in 'message_before_send' hook (#4467)
	- Apply user-specific replacements to group's base_dn property (#4512)
	- Fix missing email address when importing contacts from outlook csv (#4535)
	- Fix bug where "With attachment" option in search filter wasn't selected after return from mail view (#4508)
	- Fix "washing" of unicode style attributes (#4510)
	- Fix unintentional redirect from compose page in Webkit browsers (#4516)
	- Fix messages index cache update under some conditions (e.g. proxy) (#4505)
	- Fix lack of translation of special folders in some configurations (#4520)
	- Fix XSS issue in plain text spellchecker (#4524)
	- Fix invalid page title for some folders (1489804)
	- Fix redundant alert message on over-size uploads (#4528)
	- Fix next message display after removing a message (#4521)
	- Fix missing Mail-Followup-To header in sent mail (#4534)
	- Fix error when spell-checking an empty text (#4536)
	- Avoid popupmenus being closed when scrollbar is clicked (#4537)
	- Add proxy_whitelist configuration option (#4496)
	- Fix identities_level=4 handling in new_user_dialog plugin (#4540)
	- Fix various db_prefix issues (#4539)
	- Fix too small length of users.preferences column data type on MySQL
	- Fix redundant warning when switching from html to text in empty editor (#4530)
	- Fix invalid host validation on login (#4541)
	- Fix IMAP connection test in installer so it is aware of imap_auth_type (#4502)

	## Release 1.0.0

	- Added toolbar button to move message in message view
	- Fix style of disabled protocol handler link on IE (#4460)
	- Fix message import dialog when no file is selected (#4488)
	- Fix opening compose screen in new window after saving as draft (#4479)
	- Fix directories check in Installer on Windows (#4462)
	- Fix issue when default_addressbook option is set to integer value (#4379)
	- Fix Opera > 15 detection (#4455)
	- Fix security issue in DomainFactory driver of Password plugin
	- Fix invalid X-Draft-Info on forwarded message draft (#4464)
	- Fix regression in handling of 'attachments' result in message_compose hook (#4474)
	- Fix issue where msgexport.sh printed the message to STDOUT instead of a file (#4476)
	- Fix fatal error in database_attachments plugin under some conditions (#4495)

	## Release 1.0-rc

	- Small CSS fix with message notice boxes in Larry skin (#4429)
	- Include groups in contacts search on mail compose (#4186)
	- Add mime-type mapping for .7z files (#4436)
	- Invoke update scripts with php to circumvent execution restrictions (#4330)
	- Fix drag & drop message/contact moving on touch device (#4395)
	- Fix canned responses in HTML mode (#4446)
	- Check/create default folders on every login not only the first (#4391)
	- Update to jQuery-1.11.0 and jQuery-UI-1.9.2
	- Support SMTP socket context options via new config option 'smtp_conn_options'
	- Fix compatibility with PHP 5.2 in html.php file (#4438)
	- Remove expand/collapse with plus/minus keys (on numeric keypad) (#4437)
	- Fix issue where filesystem path was added to all-attachments (zip) file (#4433)
	- Fix case-sensitivity of email addresses handling on compose (#1899)
	- Don't alter Message-ID of a draft when sending (#4381)
	- Fix issue where deprecated syntax for HTML lists was not handled properly (#3975)
	- Display different icons when Trash folder is empty or full (#2108)
	- Remember last position of more headers switch (#3660)
	- Fix so message flags modified by another client are applied on the list on refresh (#1639)
	- Fix broken text/* attachments when forwarding/editing a message (#4393)
	- Improved minified files handling, added css minification (#3041)
	- Fix handling of X-Forwarded-For header with multiple addresses (#4424)
	- Fix border issue on folders list in classic skin (#4419)
	- Implemented menu actions to copy/move messages, added folder-selector widget (#863)
	- Fix security rules in .htaccess preventing access to base URL without the ending slash (#4422)
	- Fix regression where only first new folder was placed in correct place on the list (#4418)
	- Fix issue where children of selected and collapsed thread were skipped on various actions (#4410)
	- Fix issue where groups were not deleted when "Replace entire addressbook" option on contacts import was used (#4388)
	- Fix unreliable mimetype tests in Installer (#4408)
	- Fix performance of listing writeable folders (#4406)

	## Release 1.0-beta

	- Fix handling of invalid closing tags in HTML messages (#4403)
	- Set real content-type for file downloads (#4400)
	- Update TinyMCE to version 3.5.10 (#4401)
	- Fix keyboard navigation in list widgets (#4367)
	- Allow plugins to grab the reference of opened windows (#4383)
	- Larry skin: Improved status message display for better visibility (#4115)
	- Fix Internet Explorer 11 detection (#4397)
	- Fix date column width to fit the widest possible date format (#4354)
	- Move certain user preference options to a collapsed "advanced" block (#4015)
	- Add file type icons for PowerPoint and Open Office presentations (#4269)
	- Fix operations on folders with trailing spaces in name (#4387)
	- Improve identity selection based on From: header (#4360)
	- Fix issue where mails with inline images of the same name contained only the first image multiple times (#4378)
	- Use left/right arrow keys to collapse/expand thread and spacebar to select a row, change Ctrl key behavior (#4367)
	- Fix an issue where using arrow keys to go up a list can result in selected message being under headers (#4375)
	- Fix an issue where Home/End keys don't focus list row properly, don't scrollTo properly (#4370)
	- Add an option to disable smart Reply-List behaviour - reply_all_mode (#3953)
	- Fix an issue where pressing minus key on contacts list was hiding list records (#4368)
	- Fix an issue where shift + arrow-up key wasn't selecting all messages in collapsed thread (#4371)
	- Added icon for priority column in messages list header (#4275)
	- New feature "Canned Responses" to save and recall boilerplate text snippets
	- Fix HTML part detection when encapsulated inside multipart/signed (#4357)
	- Add spellchecker backend for the After the Deadline service
	- Replace markdown-style [1] link indexes in plain text email bodies
	- Improved mailto: link arguments handling (#4351)
	- Use DOMDocument LIBXML_PARSEHUGE and LIBXML_COMPACT options if possible (#4316)
	- Support HTTP_HOST, SERVER_NAME and SERVER_ADDR values in include_host_config feature
	- Make default font size for HTML messages configurable (request #118)
	- Fix XSS issue in addressbook group name field [CVE-2013-5646] (#4337)
	- After message is sent refresh messages list of replied message folder (#4282)
	- Add option force specified domain in user login - username_domain_forced (#4290)
	- Add option to import Vcards with group assignments
	- Save groups membership in Vcard export (#3801)
	- Workaround broken PHP function timezone_name_from_abbr (#4289)
	- Make cached message size limit configurable - messages_cache_threshold (#4326)
	- Log also failed logins to userlogins log
	- Add temp_dir_ttl configuration option (#4318)
	- Allow setting INBOX as Sent folder (#4264)
	- Fix replacement variables in user-specific base_dn in some LDAP requests (#4299)
	- Fix image scaling issues when image has only one dimension smaller than the limit (#4296)
	- Fix issue where uploaded photo was lost when contact form did not validate (#4296)
	- Move identity selection based on non-standard headers into (new) identity_select plugin (#3835)
	- Fix downloading binary files with (wrong) text/* content-type (#4292)
	- Respect HTTP_X_FORWARDED_FOR and HTTP_X_REAL_IP variables for session IP check
	- Simplified configuration by merging it into one file + defaults (#3156)
	- Make message list header stay on top when scrolling (#353)
	- Add support for 'enchant' spellcheck engine
	- Check filetype detection in installer and update script (#4252)
	- Fix folder names truncation in Classic skin (#4265)
	- Make possible to disable some (broken) IMAP extensions with imap_disable_caps option (#4245)
	- Contacts drag-n-drop default action is to move contacts (#3962)
	- Added possibility to choose to move or copy contacts from drag-n-drop menu (#3962)
	- Fix Close link and remove About link on error pages (#4201)
	- Improved/unified attachment preview screen, added print button
	- Fix lack of space between searchfilter and quicksearchbar in Larry skin (#4233)
	- Cache LDAP's user_specific search and use vlv for better performance (#4247)
	- LDAP: auto-detect and use VLV indices for all search operations
	- LDAP: additional group configuration options for address books
	- LDAP: separated address book implementation from a generic LDAP wrapper class
	- Allow address books to browse a multi-level group hierarchy in the contacts list
	- Fix session issues when local and database time differs (#2401)
	- Fix thread cache synchronization/validation (#4150)
	- Added feature to import messages to the currently selected folder
	- Add option show_real_foldernames to disable localization of special folders
	- Fix database cache expunge issues (#4229)
	- Fix date format issues on MS SQL Server (#4078)
	- Add imap_cache_ttl option to configure TTL of imap_cache
	- Make LDAP cache engine configurable via ldap_cache and ldap_cache_ttl options
	- Fix "duplicate entry" errors on inserts to imap cache tables (#4228)
	- Improved handling of Reply-To/Bcc addresses of identity in compose form (#4142)
	- Added user preference to open all popups as standard windows
	- Implemented shared cache (rcube_cache_shared)
	- Change Reply-All button label/title when mailing list is detected (#4092)
	- Fix SMTP connection using IPv6 address in smtp_server option (#4147)
	- Added attachment_reminder plugin
	- Make PHP code eval() free, use create_function()
	- Add option to display email address together with a name in mail preview (#3952)
	- Support CSV import from Atmail (#4161)
	- Add db_prefix configuration option in place of db_table_/db_sequence_ options
	- Make possible to use db_prefix for schema initialization in Installer (#4175)
	- Fix updatedb.sh script so it recognizes also table prefix for external DDL files
	- Fix parsing invalid date string (#4155)
	- Add "with attachment" option to messages list filter (#1795)
	- Call resize handler in intervals to prevent lags and double onresize calls in Chrome (#4137)
	- Add rel="noreferrer" for links in displayed messages (#4976)
	- Add ability to toggle between HTML and text while viewing a message (#3005)
	- Remove "HTML message" from attachments list while viewing a message in text mode (#3005)
	- Support IMAP MOVE extension [RFC 6851]
	- Add attachment menu with Open and Download options (#4116)
	- Display user-friendly message on IMAP "over quota" errors (#914)
	- Extended archive plugin with user-configurable options to store messages into subfolders
	- Fix export of selected contacts from search result (#4070)
	- Feature to export only selected contacts from addressbook (by Phil Weir)

	## Release 0.9.5

	- Fix failing vCard import when email address field contains spaces (#4363)
	- Fix default spell-check configuration after Google suspended their spell service
	- Fix vulnerability in handling _session argument of utils/save-prefs [CVE-2013-6172] (#4362)
	- Fix iframe onload for upload errors handling (#4361)
	- Fix address matching in Return-Path header on identity selection (#4358)
	- Fix text wrapping issue with long unwrappable lines (#4356)
	- Fixed issues where HTML comments inside style tag would hang Internet Explorer
	- Hide Delivery Status Notification option when smtp_server is unset (#4339)
	- Display full attachment name using title attribute when name is too long to display (#4328)
	- Fix attachment icon issue when rare font/language is used (#4334)
	- Fix expanded thread root message styling after refreshing messages list (#4335)
	- Fix issue where From address was removed from Cc and Bcc fields when editing a draft (#4327)
	- Fix error_reporting directive check (#4331)
	- Fix de_DE localization of "About" label in Help plugin (#4333)

	## Release 0.9.4

	- Make identities matching case insensitive (#1881)
	- Fix issue where too big message data was stored in cache causing sql errors (#4325)
	- Fix iframe scrollbars on webkit desktop browsers (#4319)
	- Fix issue where legacy config was overridden by default config (#4305)
	- Fix newmail_notifier issue where favicon wasn't changed back to default (#4324)
	- Fix setting of Junk and NonJunk flags by markasjunk plugin (#4303)
	- Fix lack of Reply-To address in header of forwarded message body (#4314)
	- Fix bugs when invoking contact creation form when read-only addressbook is selected (#4313)
	- Fix identity selection on reply (#4308)
	- Fix so additional headers are added to all messages sent (#4302)
	- Fix display issue after moving folder in Folder Manager (#4310)
	- Fix handling of non-default date formats (#4311)
	- Fix unquoted path in PREG expression on Windows (#4307)
	- Fix wrong close tag in /template/mail.html (#4312)

	## Release 0.9.3

	- Fix setting refresh_interval to "Never" in Preferences (#4304)
	- Fixed iframe scrolling on touch devices
	- Optimized message list for touch devices
	- Fix purge action in folder manager (#4300)
	- Fix base URL resolving on attribute values with no quotes (#4297)
	- Fix wrong handling of links with '\|' character (#4298)
	- Fix colorspace issue on image conversion using ImageMagick (#4294)
	- Fix XSS vulnerability when editing a message "as new" or draft [CVE-2013-5645] (#4283)
	- Fix XSS vulnerability when saving HTML signatures [CVE-2013-5645] (#4283)
	- Fix rewrite rule in .htaccess (#4278)
	- Fix detecting Turkish language in ISO-8859-9 encoding (#4284)
	- Fix identity-selection using Return-Path headers (#4279)
	- Fix parsing of links with ... in URL (#4251)
	- Fix compose priority selector when opening in new window (#4286)
	- Fix bug where signature wasn't changed on identity selection when editing a draft (#4272)
	- Fix IMAP SETMETADATA parameters quoting (#4274)
	- Fix "could not load message" error on valid empty message body (#4271)
	- Fix handling of message/rfc822 attachments on message forward and edit (#4262)
	- Fix parsing of square bracket characters in IMAP response strings (#4267)
	- Don't clear References and in-Reply-To when a message is "edited as new" (#4263)
	- Fix messages list sorting with THREAD=REFS
	- Remove deprecated (in PHP 5.5) PREG /e modifier usage (#4239)
	- Fix empty messages list when register_globals is enabled (#4232)
	- Fix so valid and set date.timezone is not required by installer checks (#4242)
	- Canonize boolean ini_get() results (#4249)
	- Fix so install do not fail when one of DB driver checks fails but other drivers exist (#4240)
	- Fix so exported vCard specifies encoding in v3-compatible format (#4244)

	## Release 0.9.2

	- Fix image thumbnails display in print mode (#4220)
	- Fix height of message headers block (#4200)
	- Fix timeout issue on drag&drop uploads (#4238)
	- Fix default sorting of threaded list when THREAD=REFS isn't supported
	- Fix list mode switch to 'List' after saving list settings in Larry skin (#4236)
	- Fix error when there's no writeable addressbook source (#4235)
	- Fix zipdownload plugin issue with filenames charset (#4231)
	- Fix so non-inline images aren't skipped on forward (#4230)
	- Fix "null" instead of empty string on messages list in IE10 (#4227)
	- Fix legacy options handling
	- Fix so bounces addresses in Sender headers are skipped on Reply-All (#4140)
	- Fix bug where serialized strings were truncated in PDO::quote() (#4226)
	- Fix displaying messages with invalid self-closing HTML tags (#4223)
	- Fix PHP warning when responding to a message with many Return-Path headers (#4222)
	- Fix unintentional compose window resize (#4206)
	- Fix performance regression in text wrapping function (#4219)
	- Fix connection to postgres db using unix socket (#4218)
	- Fix handling of comma when adding contact from contacts widget (#4199)
	- Fix bug where a message was opened in both preview pane and new window on double-click (#4212)
	- Fix fatal error when xdebug.max_nesting_level was exceeded in rcube_washtml (#4202)
	- Fix PHP warning in html_table::set_row_attribs() in PHP 5.4 (#4194)
	- Fix invalid option selected in default_font selector when font is unset (#4204)
	- Fix displaying contact with ID divisible by 100 in sql addressbook (#4211)
	- Fix browser warnings on PDF plugin detection (#4209)
	- Fix fatal error when parsing UUencoded messages (#4210)

	## Release 0.9.1

	- Better German labels for from/to to avoid conflicts with 'sender' (#4188)
	- Fix problem where security warning was displayed for valid images with image/jpg type (#4196)
	- Fix handling of invalid email addresses in headers (#4193)
	- Fix IMAP connection issue with default_socket_timeout < 0 and imap_timeout < 0 (#4191)
	- Fix various PHP code bugs found using static analysis (#4190)
	- Fix backslash character handling on vCard import (#4189)
	- Fix csv import from Thunderbird with French localization (#4170)
	- Fix messages list focus issue in Opera and Webkit (#4169)
	- Fix Reply-To header handling in Reply-All action (#4157)
	- Fix so Sender: address is added to Cc: field on reply to all (#4140)
	- Fix so addressbook_search_mode works also for group search (#4183)
	- Fix removal of a contact from a group in LDAP addressbook (#4185)
	- Include SQL query in the log on SQL error (#4172)
	- Fix handling untagged responses in IMAP FETCH - "could not load message" error (#4180)
	- Fix very small window size in Chrome (#4087)
	- Fix list page reset when viewing a message in Larry skin (#4182)
	- Fix min_refresh_interval handling on preferences save (#4179)
	- Fix PDF support detection for Firefox PDF.js (#4113)
	- Fix possible collision in generated thumbnail cache key (#4177)
	- Fix exit code on bootstrap errors in CLI mode (#4160)
	- Fix error handling in CLI mode, use STDERR and non-empty exit code (#5161)
	- Fix error when using check_referer=true
	- Fix incorrect handling of some specific links (#4171)
	- Fix incorrect handling of leading spaces in text wrapping
	- Fix unintentional messages list jumps on click in Internet Explorer (#4167)
	- Fix list of required configuration options (#4166)
	- Fix DB error when creating a new contact and a group is selected (#4164)
	- Fix handling of deprecated boolean value of reply_mode option (#4165)

	## Release 0.9.0

	- Fix display of HTML entities in protected folder name (#4159)
	- Set minimal permissions to temp files (#4131)
	- Improve content check for embedded images without filename (#4151)
	- Fix handling of invalid characters in message headers and output (#4153)
	- Fix selecting collapsed rows on select-all (#4156)
	- Avoid race-conditions with concurrent attachment uploads (#3739)
	- Fix possible header duplicates when using additional headers (#4154)
	- Fix session issues with use_https=true (#4125)
	- Fix blockquote width in sent mail (#4152)
	- Fix keyboard events on list widgets in Internet Explorer (#4148)

	## Release 0.9-rc2

	- Fix security issue in save-pref command
	- Remove sig_above configuration option, use reply_mode only (#4135)
	- Refresh current folder in opener window after draft save or message sent (#4132)
	- Fix saving draft just after entering compose window (#4141)
	- Fix javascript error in IE9 when loading form with placeholders into an iframe (#4138)
	- Fix handling of some conditional comment tags in HTML message (#4136)
	- Fix so forward as attachment works if additional attachment is added by message_compose hook (#4134)
	- Better handling of session errors in ajax requests (#4105)
	- Fix HTML part detection for some specific message structures (#4130)
	- Don't show fake address - phishing prevention (#4120)
	- Fix forward as attachment bug with editormode != 1 (#4129)
	- Fix LIMIT/OFFSET queries handling on MS SQL Server (#4123)
	- Fix so task name can really contain all from a-z0-9_- characters (#4095)
	- Fix javascript errors when working in a page opened with target="_blank"
	- Mention SQLite database format change in UPGRADING file (#4122)
	- Increase maxlength to 254 chars for email input fields in addressbook (#4126)
	- Fix thumbnail size when GD extension is used for image resize (#4124)
	- Display notice that message is encrypted also for application/pkcs7-mime messages (#3815)

	## Release 0.9-rc

	- Fix plain text spellchecker incorrect highlighting in non-ASCII text (#4114)
	- Add workaround for invalid message charset detection by IMAP servers (#4112)
	- Fix NUL characters in content-type of ms-tnef attachment (#4108)
	- Fix regression in handling LDAP contact identifiers (#4104)
	- Updated translations from Transifex
	- Fix buggy error template in a frame (#4092)
	- Add addressbook widget on compose page in classic skin
	- Add search box to compose address book widget (#3710)
	- Fix login in case when default_host is an array with one element (#4085)
	- Use LDAP fallback hosts on connect + bind instead of ldap_connect() only.
	- Add config option for LDAP bind timeout (sets LDAP_OPT_NETWORK_TIMEOUT option)
	- Submit Addressbook advanced search form with Enter key (#3843)
	- Also block remote images in HTML part view (#4013)
	- Improved database schema upgrade procedure, added updatedb.sh script
	- Force autocommit mode in mysql database driver (#4068)

	## Release 0.9-beta

	- Fix searching by date in address book (#4058)
	- Improve charset detection by prioritizing charset according to user language (#2032)
	- Fix handling of escaped separator in vCard file (#4064)
	- Add option to use envelope From address for MDN responses (#4052)
	- Add possibility to search in message body only (#3977)
	- Support "multipart/relative" as an alias for "multipart/related" type (#4057)
	- Display PGP/MIME signature attachments as "Digital Signature" (#3845)
	- Workaround UW-IMAP bug where hierarchy separator is added to the shared folder name (#4051)
	- Fix version comparisons with -stable suffix (#4050)
	- Add unsupported alternative parts to attachments list (#4046)
	- Add Compose button on message view page (#3959)
	- Display 'Sender' header in message preview
	- Plugin API: Added message_before_send hook
	- Fix contact copy/add-to-group operations on search result (#4042)
	- Use matching identity in MDN response (#4043)
	- Fix handling of signatures on draft edit (#3996)
	- Fix so compacting of non-empty folder is possible also when messages list is empty (#4039)
	- Allow forwarding of multiple emails (#2941)
	- Fix big memory consumption of DB layer (#4037)
	- Fix broken message/part bodies when FETCH response contains more untagged lines (#4020)
	- Fix empty email on identities list after identity update (#4018)
	- Add new identities_level: (4) one identity with possibility to edit only signature
	- Use Delivered-To and Envelope-To headers for identity selection (#4024, #3835)
	- Fix XSS vulnerability using Flash files (#4014)
	- Always save drafts with format=flowed in order to keep original line wraps (#3997)
	- Select default_addressbook on the list in Address Book (#3624)
	- Fix so mobile phone has TYPE=CELL in exported vCard (#4004)
	- Support contacts import from CSV file (#2605)
	- Improved keep-alive action. Now the interval is based on session_lifetime (#3799)
	- Added cross-task 'refresh' request for system state updates (#3799)
	- Renamed config options: keep_alive to refresh_interval, min_keep_alive to min_refresh_interval
	- Fix handling of text/enriched content on message reply/forward/edit
	- Option to display attached images as thumbnails below message body
	- Upgraded to jQuery 1.8.3 and jQuery UI 1.9.1
	- Add config option to automatically generate LDAP attributes for new entries
	- Add user settings to open message view and compose form in new windows (#1886)
	- Better client-side timezone detection using the jsTimezoneDetect library (#3947)
	- Add option to disable saving sent mail in Sent folder - no_save_sent_messages (#3923)
	- Fix handling dont_override with message_sort_col and message_sort_order settings (#3970)
	- Fix handling of URLs with asterisk characters (#3969)
	- Remove automatic to-lowercase conversion of usernames (#3941)
	- Plugin API: Add 'email_list' argument for identities data in user_create hook
	- Integrated zipdownload plugin to download all attachments (#617)
	- Fix HTML special characters handling in message list/header display (#3812)
	- List related text/html part as attachment in plain text mode (#3918)
	- Use IMAP BINARY (RFC3516) extension to fetch message/part bodies
	- Fix folder creation under public namespace root (#3910)
	- Fix so "Edit as new" on draft creates a new message (#3924)
	- Fix invalid error message on deleting mail from read only folder (#3929)
	- Replace data URIs of images (pasted in HTML editor) with inline attachments (#3795)
	- Remove (too big) min-width on mail screen
	- Added template object 'frame'
	- Add option to enable HTML editor on forwarding (#3807)
	- Add option to not include original message on reply, rename option top_posting to reply_mode (#1615)
	- Added session_path config option and unified cookies settings in javascript
	- Added "Undeleted" option to messages list filter
	- Rewritten test scripts for PHPUnit
	- Add new DB abstraction layer based on PHP PDO, supporting SQLite3 (#3668)
	- Removed PEAR::MDB2 package
	- Removed users.alias column, added option ('user_aliases')
	to use email address from identities as username (#3851)
	- Removed redundant cache.cache_id column (#3817)
	- Fix order of attachments in sent mail (#3740)
	- Fix Shift + delete button does not permanently delete messages (#3598)
	- Add Content-Length for attachments where possible (#1880)
	- Fix attachment sizes in message print page and attachment preview page (#3805)
	- Add mail attachments using drag & drop on HTML5 enabled browsers
	- Add workaround for invalid BODYSTRUCTURE response - parse message with Mail_mimeDecode package (#1966)
	- Display Tiff as Jpeg in browsers without Tiff support (#3757)
	- Don't display Pdf/Tiff/Flash attachments inline without browser support (#3757, #3394)
	- Add is_escaped attribute for html_select and html_textarea (#3782)
	- Fix issue where draft auto-save wasn't executed after some inactivity time
	- Add vCard import from multiple files at once (#3458)
	- Roundcube Framework:
	Add possibility to replace IMAP driver with custom class
	Add IMAP auto-connection feature, improving performance with caching enabled
	Replace imap_init hook with storage_init (with additional 'driver' argument)
	Improved performance by caching IMAP server's capabilities in session
	Unified global functions naming (rcube_ prefix)
	Better classes separation
	Framework files moved to lib/Roundcube

	## Release 0.8.5

	- Fix #countcontrols issue in IE<=8 when text is very long (#4060)
	- Fix unwanted horizontal scrollbar in message preview header (#4044)
	- Add workaround for IE<=8 bug where Content-Disposition:inline was ignored (#4028)
	- Fix XSS vulnerability in vbscript: and data:text links handling [CVE-2012-6121] (#4033)
	- Fix absolute positioning in HTML messages (#4007)
	- Fix cache (in)validation after setting \Deleted flag
	- Fix keyboard events on messages list in opera browser (#4011)
	- Fix selection of collapsed thread rows (#3978)
	- Fix wrapping of quoted text with format=flowed (#3561)

	## Release 0.8.4

	- Fix regression where unintentional page reload was done after request abort (#3999)
	- Fix XSS vulnerability in handling of text/enriched messages (#4000)
	- Fix handling of 'media' attribute on linked css (#3989)
	- Fix excessive LFs at the end of composed message with top_posting=true (#3995)
	- Fix bug where leading blanks were stripped from quoted lines (#3994)

	## Release 0.8.3

	- Fix AREA links handling (#3992)
	- Fix possible HTTP DoS on error in keep-alive requests (#3983)
	- Fix compatibility with MDB2 2.5.0b4 (#3982)
	- Fix a bug where saving a message in INBOX wasn't possible
	- Fix HTML part detection in messages with attachments (#3976)
	- Fix bug where wrong words were highlighted on spell-before-send check
	- Fix scrolling quirk in email preview frame using Opera 12 (#3973)
	- Fix displaying of multipart/alternative messages with empty parts (#3961)
	- Fix threaded list sorting on PHP < 5.2.9 (#3960)
	- Fix Warning: htmlspecialchars(): charset `RCMAIL_CHARSET` not supported warning in Installer (#3958)

	## Release 0.8.2

	- Fix XSS vulnerability from HTTP User-Agent header (#3954)
	- Force fonts in compose fields to be all the same (#3926)
	- Fix handling vCard entries with TEL;TYPE=CELL (#3949)
	- Fix error where session wasn't updated after folder rename/delete (#3928)
	- Fix PLAIN authentication for some IMAP servers (#3916)
	- Fix encoding vCard file when contains PHOTO;ENCODING=b (#3922)
	- Fix focus issue in IE when selecting message row (#3881)
	- Add full headers view in message preview window (#3823)
	- Fix message display page issues - unified with message preview (#3856, #3895)
	- Fix displaying all headers when they contain malformed characters (#3911)
	- Fix decoding of HTML messages with UTF-16 charset specified (#3902)
	- Fix quota capability detection so it can be overwritten by a plugin (#3903)
	- Fix identity selection on reply (#3516)
	- Fix Larry's messages list filter in IE (#3890)
	- Fix more IE issues by disabling Compat. mode with X-UA-Compatible meta tag (#3886)
	- Fix setting locales under Solaris - use additional .UTF-8 suffix (#3887)
	- Fix email address validation for addresses with IP address in domain part
	- Fix Larry skin issues in IE7 compat. mode (#3879)
	- Fix so subscribed non-existing/non-accessible shared folder can be unsubscribed

	## Release 0.8.1

	- Fix bug where domain name was converted to lower-case even with login_lc=false (#3859)
	- Fix lower-casing email address on replies (#3863)
	- Fix line separator in exported messages (#3866)
	- Fix XSS issue where plain signatures wasn't secured in HTML mode [CVE-2012-4668] (#3875)
	- Fix XSS issue where href="javascript:" wasn't secured [CVE-2012-3508] (#3875)
	- Fix impossible to create message with empty plain text part (#3873)
	- Fix stripped apostrophes when replying in plain text to HTML message (#3869)
	- Fix inactive Save search option after advanced search (#3870)
	- Fix Remove from group option is active for contact search result (#3871)
	- Disable autocapitalization in login form on iPad/iPhone (#3872)
	- Fix focus on the list when list row is clicked (#3865)
	- Added separate From and To columns apart from smart From/To column (#2970)
	- Fix fallback to Larry skin when configured skin isn't available (#3857)
	- Fix (workaround) delete operations with some versions of memcache (#3858)
	- Fix (disable) request validation for spell and spell_html actions

	## Release 0.8.0

	- Don't show product version on login screen (can be enabled by config)
	- Renamed old default skin to 'classic'. Larry is the new default skin.
	- Support connections to memcached socket file (#3848)
	- Enable TinyMCE inlinepopups plugin
	- Update to TinyMCE 3.5.6
	- Correctly escape localized labels in javascript variable (#3842)
	- Update Net_SMTP/Auth_SASL packages to fix Digest-MD5/Cram-MD5 authentication (#3846)
	- Don't add attachments content into reply/forward/draft message body (#3837)
	- Fix 'no connection' errors on page unloads (#3832)
	- Plugin API: Add 'unauthenticated' hook (#3545)
	- Show explicit error message when provided hostname is invalid (#3834)
	- Fix wrong compose screen elements focus in IE9 (#3826)
	- Fix fatal error when date.timezone isn't set (#3831)
	- Update to TinyMCE 3.5.4.1
	- Better icons with distinct shapes for priority columns (#3706)
	- Show dedicated icon for multipart/report messages (#3813)
	- Properly hide text of icon links/buttons (#3820)
	- Fix handling of unitless CSS size values in HTML message (#3821)
	- Fix removing contact photo using LDAP addressbook (#3737)
	- Fix storing X-ANNIVERSARY date in vCard format (#3816)
	- Update to Mail_Mime-1.8.5 (#3810)
	- Fix XSS vulnerability in message subject handling using Larry skin [CVE-2012-3507] (#3809)
	- Fix handling of links with various URI schemes e.g. "skype:" (#3521)
	- Fix handling of links inside PRE elements on html to text conversion
	- Fix indexing of links on html to text conversion
	- Decode header value in rcube_mime::get() by default (#3803)
	- Fix errors with enabled PHP magic_quotes_sybase option (#3798)
	- Fix SQL query for contacts listing on MS SQL Server (#3797)
	- Fix window.resize handler on IE8 and Opera (#3758)
	- Don't let error message popups cover the login form (#3794)
	- Update to TinyMCE 3.5.2
	- Don't show errors when moving contacts into groups they are already in (#3788)
	- Make folders with unread messages in subfolders bold again (#2892)
	- Abbreviate long attachment file names with ellipsis (#3793)
	- Fix html2text conversion of strong\|b\|a\|th\|h tags when used in upper case
	- Add listcontrols template container in Larry skin (#3792)
	- Fix host autoselection when default_host is an array (#3790)
	- Move messages forwarding mode setting into Preferences
	- Fix HTML entities handling in HTML editor (#3780)
	- Fix listing shared folders on Courier IMAP (#3767)

	## Release 0.8-rc

	- Added new translations in Belarusian, Interlingua and Malayalam
	- Flipped compose options arrow (#3772)
	- Fix handling of large uuencode attachments (#3771)
	- Fix handling of "usemap" attribute (#3770)
	- Fix handling of some HTML tags e.g. IMG (#3769)
	- Use similar language as a fallback for plugin localization (#3726)
	- Fix issue where signature wasn't re-added on draft compose (#3659)
	- Update to TinyMCE 3.5 (#3762)
	- Fixed multi-threaded autocompletion when number of threads > number of sources
	- Allow to configure the number of values allowed for each LDAP attribute
	- Support for serialized LDAP address values (usually delimited with a $)
	- Less restrictive session auth checks, repeat keep-alive requests on failure (#3755)
	- Fix redirect to mail/compose on re-login (#3585)
	- Add IE8 hack for messages list issue (#3317)
	- Fix handling errors on draft auto-save
	- Fix importing vCard photo with ENCODING param specified (#3746)
	- Support multiple name/email pairs for Bcc and Reply-To identity settings (#3752)
	- Set flexible width to login form fields (#3735)
	- Fix re-draw bug on list columns change in IE8 (#3318)
	- Allow mass-removal of addresses from a group (#3259)
	- Fix removing all contacts on import to LDAP addressbook
	- Fix so "Back" from compose/show doesn't reset search request (#3594)
	- Add option to delete messages instead of moving to Trash when in Junk folder (#2805)
	- Fix invisible cursor when replying to a html message (#3100)
	- Reset IP stored in session when destroying session data (#3485)
	- Fix bug where memory_limit = -1 wasn't handled properly
	- Support LDAP RFC2256's country object class read/write (#3535)
	- Upgraded to jQuery 1.7.2
	- Image resize with GD extension (#3712)
	- Fix lack of warning when switching task in compose window (#3725)
	- Fix bug where it wasn't possible to enter ( or & characters in autocomplete fields
	- Request all needed fields from address book backends (#3721)
	- Unified (single) spellchecker button
	- Scroll long lists on drag&drop (#2249)
	- Copy all skins in installto script (#3705)

	## Release 0.8-beta

	- Upgraded to jQuery 1.7.1 (#3673) and jQuery UI 1.8.18
	- Add Russian to the spellchecker languages list (#3542)
	- Remember custom skin selection after logout (#3688)
	- Make sure About tab is always the last tab (#3609)
	- Fix issue with folder creation under INBOX. namespace (#3683)
	- Added mailto: protocol handler registration link in User Preferences (#2729)
	- Handle identity details box with an iframe (#3066)
	- Fix issue where some text from original message was missing on reply (#3675)
	- Fix autoselect_host() for login (#3639)
	- Changed license to GNU GPLv3+ with exceptions for skins & plugins
	- Added address book widget on compose screen
	- Use proper timezones from PHP's internal timezonedb (#1973)
	- Add separate pagesize setting for mail messages and contacts (#3617)
	- Deprecate $DB, $USER, $IMAP global variables, Use $RCMAIL instead
	- Add option to set default font for HTML message (#894)
	- Fix issues with big memory allocation of IMAP results
	- Prevent from memory_limit exceeding when trying to parse big messages bodies (#3164)
	- Add possibility to add SASL mechanisms for SMTP in smtp_connect hook (#3399)
	- Mark (with different color) folders with recent messages (#2479)
	- Added About tab in Settings
	- TinyMCE updated to 3.4.6

	## Release 0.7.2

	- Fix encoding of attachment with comma in name (#3717)
	- Fix handling of % character in IMAP protocol (#3711)
	- Fix duplicate names handling in addressbook searches (#3704)
	- Fix displaying of HTML messages from Disqus (#3702)
	- Disable E_STRICT warnings on PHP 5.4
	- Prevent from folder selection on virtual folder collapsing (#3681)
	- Fix automatic unsubscribe of non-existent folders
	- Fix double-quotes handling in recipient names
	- User configurable setting how to display contact names in list
	- Make contacts list sorting configurable for the admin/user
	- Fix parse errors in DDL files for MS SQL Server
	- Revert SORT=DISPLAY support, removed by mistake (#3664)
	- Add lost translation label in de_DE (#3654)
	- Fix drafts update issues when edited from preview pane (#3653)
	- Fix wrong variable name in rcube_ldap.php (#3643)
	- Make mime type detection based on filename extension to be case-insensitive
	- Fix failure on MySQL database upgrade from 0.7 - text column can't have default value (#3642)


	## Release 0.7.1

	- Fix bug in handling of base href and inline content (#3634)
	- Fix SQL Error when saving a contact with many email addresses (#3630)
	- Fix strict email address searching if contact has more than one address
	- Remove duplicated 'organization' label (#3631)
	- Fix so editor selector is hidden when 'htmleditor' is listed in 'dont_override'
	- Fix wrong (long) label usage (#3627)
	- Fix handling of INBOX's subfolders in special folders config (#3623)
	- Add ifModule statement for setting Options -Indexes in .htaccess file (#3620)
	- Fix crashes with eAccelerator (#3608)
	- Fix searching on IMAP servers without CHARSET specifier support (#3619)
	- Fix expanding folders during drag&drop (#3611)
	- Fix wrong postgres sequence name in upgrade from 0.6
	- Fix broken CREATE INDEX queries in SQLite DDL files (#3607)

	## Release 0.7

	- Make Roundcube render the Email Standards Project Acid Test correctly
	- Replace prompt() with jQuery UI dialog (#1603)
	- Fix navigation in messages search results
	- Improved handling of some malformed values encoded with quoted-printable (#3590)
	- Add possibility to do LDAP bind before searching for bind DN
	- Fix handling of empty <U> tags in HTML messages (#3584)
	- Add content filter for embedded attachments to protect from XSS on IE [CVE-2012-1253] (#3372)
	- Use strpos() instead of strstr() when possible (#3581)
	- Fix handling HTML entities when converting HTML to text (#3582)
	- Fix fit_string_to_size() renders browser and ui unresponsive (#3577)
	- Fix handling of invalid characters in request (#3536)
	- Fix merging some configuration options in update.sh script (#2181)
	- Fix so TEXT key will remove all HEADER keys in IMAP SEARCH (#3578)
	- Fix handling contact photo url with https:// prefix (#3575)
	- Fix possible infinite redirect on attachment preview (#3572)
	- Improved clickjacking protection for browsers which don't support X-Frame-Options headers
	- Fixed bug where similar folder names were highlighted wrong (#3345)
	- Fixed bug in handling link with '!' character in it (#3569)
	- Fixed bug where session ID's length was limited to 40 characters (#3570)
	- TinyMCE security issue: removed moxieplayer (embedding flv and mp4 is not supported anymore)

	## Release 0.7-beta

	- Fix handling of HTML form elements in messages (#1604)
	- Fix regression in setting recipient to self when replying to a Sent message (#3101)
	- Fix listing of folders in hidden namespaces (#2895)
	- Don't consider \Noselect flag when building folders tree (#3448)
	- Fix sorting autocomplete results (#3504)
	- Add option to set session name (#2630)
	- Add option to skip alternative email addresses in autocompletion
	- Fix inconsistent behaviour of Compose button in Drafts folder, add Edit button for drafts
	- Fix problem with parsing HTML message body with non-unicode characters (#3312)
	- Add option to define matching method for addressbook search (#2720, #3378)
	- Make email recipients separator configurable
	- Fix so folders with \Noinferiors attribute aren't listed in parent selector
	- Fix handling of curly brackets in URLs (#3555)
	- Fix handling of dates (birthday/anniversary) in contact data (#3552)
	- Fix error on opening searched LDAP contact (#3550)
	- Fix redundant line break in flowed format (#3551)
	- Fix IDN address validation issue (#3544)
	- Fix JS error when dst_active checkbox doesn't exist (#3540)
	- Autocomplete LDAP records when adding contacts from mail (#3498)
	- Plugin API: added 'ready' hook (#3492)
	- Ignore DSN request when it isn't supported by SMTP server (#3300)
	- Make sure LDAP name fields aren't arrays (#3523)
	- Fixed imap test to non-default port when using ssl (#3532)
	- Force all files to be overwritten when updating (#3531)
	- Fix issue where it wasn't possible to change list view mode in folder manager for INBOX (#3522)
	- Fix namespace handling in special folders settings (#3527)
	- Disable time limit for CLI scripts (#3524)
	- Fix misleading display when changing editor type (#3519)
	- Add loading indicator on contact delete
	- Fix bug where after delete message rows can be added to the list of another folder (#3263)
	- Add notice on autocompletion that not all records were displayed
	- Add option 'searchonly' for LDAP address books
	- Add Priority filter to the messages list
	- Cache synchronization using QRESYNC/CONDSTORE
	- Trigger 'new_messages' hook for all checked folders (#3503)
	- Make date/time format user configurable; drop 'date_today' config option
	- Fix setting title for truncated subject in IE (#3141)
	- Fix displaying multipart/alternative messages with only one part (#3400)
	- Rewritten messages caching:
	Indexes are stored in a separate table, so there's no need to store all messages in a folder
	Added threads data caching
	Flags are stored separately, so flag change doesn't cause DELETE+INSERT, just UPDATE
	- Improved FETCH response handling
	- Improvements in response tokenization method
	- Use 'From' and 'To' labels instead of 'Sender' and 'Recipient'
	- Fix username case-insensitivity issue in MySQL (#3462)
	- Addressbook Saved Searches
	- Added spellchecker exceptions dictionary (shared or per-user)
	- Added possibility to ignore words containing caps, numbers, symbols (spellcheck_ignore_* options)
	- Added 'priority' column on messages list (#2884)
	- Localize forwarded message header (#3487)

	## Release 0.6

	- Fix bug where the last identity is used on reply (#3516)
	- Fix locked folder rename option on servers supporting RFC2086 only (#3508)
	- Fix session race conditions when composing new messages
	- Fix encoding of LDAP contacts identifiers (#3501)
	- jQuery 1.6.4
	- Fix handling of binary attachments encoded with quoted-printable (#3494)
	- Fix text-overflow:ellipsis issues on messages list in FF7 and Webkit (#3490)
	- Fix handling of links with IP address
	- Fix compacting folder resets message list filter (#3499)

	## Release 0.6-rc

	- Send X-Frame-Options headers to protect from clickjacking (#3079)
	- Fallback to mail_domain in LDAP variable replacements; added 'host' to 'user_create' hook arguments (#3464)
	- Fixed wrong vCard type parameter mobile (#3496)
	- Fixed vCard WORKFAX issue (#3476)
	- Add vCard's Profile URL support (#3491)
	- jQuery 1.6.3
	- Fix imap_cache setting to values other than 'db' (#3489)
	- Fix handling of attachments inside message/rfc822 parts (#3466)
	- Make list of mimetypes that open in preview window configurable (#3175)
	- Added plugin hook 'message_part_get' for attachment downloads
	- Added unique connection identifier to IMAP debug messages
	- Fix image type check for contact photo uploads

	## Release 0.6-beta

	- Fixed selecting identity on reply/forward (#3434)
	- Add option to hide selected LDAP addressbook on the list
	- Add client-side checking of uploaded files size
	- Add newlines between organization, department, jobtitle (#3468)
	- Recalculate date when replying to a message and localize the cite header (#3212)
	- Fix handling of email addresses with quoted local part (#3401)
	- Fix EOL character in vCard exports (#3357)
	- Added optional "multithreading" autocomplete feature
	- Plugin API: Added 'config_get' hook
	- Fixed new_user_identity plugin to work with updated rcube_ldap class (#3443)
	- Plugin API: added folder_delete and folder_rename hooks
	- Added possibility to undo last contact delete operation
	- Fix sorting of contact groups after group create (#3258)
	- Add optional textual upload progress indicator (#2330)
	- Fix parsing URLs containing commas (#3425)
	- Added vertical splitter for books/groups list in addressbook (#3389)
	- Improved namespace roots handling in folder manager
	- Added searching in all addressbook sources
	- Added addressbook source selection in contacts import
	- Implement LDAPv3 Virtual List View (VLV) for paged results listing
	- Use 'address_template' config option when adding a new address block (#3406)
	- Added addressbook advanced search
	- Add popup with basic fields selection for addressbook search
	- Case-insensitive matching in autocompletion (#3398)
	- Added option to force spellchecking before sending a message (#1862)
	- Fix handling of "<" character in contact data, search fields and folder names (#3349)
	- Fix saving "<" character in identity name and organization fields (#3349)
	- Added option to specify to which address book add new contacts
	- Added plugin hook for keep-alive requests
	- Store user preferences in session when write-master is not available and session is stored in memcache, write them later
	- Improve performance of folder manager operations
	- Fix default_port option handling in Installer when config.inc.php file exists (#3390)
	- Removed option focus_on_new_message, added newmail_notifier plugin
	- Added general rcube_cache class with Memcache and APC support
	- Improved caching performance by skipping writes of unchanged data
	- Option enable_caching replaced by imap_cache and messages_cache options
	- Fix WORKFAX saving in address book (#3380)
	- Add forward-as-attachment feature
	- jQuery-1.6.2 (#5158, #3154)
	- Improve display name composition when saving contacts (#3153)
	- Fix problems with subfolders of INBOX folder on some IMAP servers (#3247)
	- Fix handling of folders that doesn't belong to any namespace (#3184)
	- Enable multiselection for attachments uploading in capable browsers (#2266)
	- Add possibility to change HTML editor configuration by skin
	- Fix a bug where selecting too many contacts would produce too large URI request (#3369)
	- Improve performance by including files with absolute path (#3337)
	- Move folder name truncation to client/skin (#1822)
	- Added plugin hook for request token creation
	- Replace LDAP vars in group queries (#3329)
	- Fix vcard folding with unicode characters (#3353)
	- Keep all submitted data if contact form validation fails (#3350)
	- Handle unicode strings in rcube_addressbook::normalize_string() (#3351)
	- Fix handling of debug_level=4 in ajax requests (#3327)
	- Enable TinyMCE's contextmenu (#3062)
	- Allow multiple concurrent compose sessions
	- New config option for custom logo
	- Allow skins to define/override texts with <roundcube:label />
	- Add simple ACL rights/namespace handling in folder manager
	- Force IE to send referers (#3306)
	- Better display of vcard import results (#1861)
	- Improved vcard import
	- Interactive update script with improved DB schema check
	- Fix problem with contactgroupmembers table creation on MySQL 4.x, add index on contact_id column
	- Add LDAP SASL bind and proxy authentication (#2810)
	- Replying to a sent message puts the old recipient as the new recipient (#3101)
	- Fulltext search over (almost) all data for contacts
	- Extend address book with rich contact information

	## Release 0.5.4

	- Fix XSS vulnerability in UI messages [CVE-2011-2937] (#3469)

	## Release 0.5.3

	- Fix identities "reply-to" and "bcc" fields have a bogus value when left empty (#3405)
	- Fix issue which cases IMAP disconnection when encrypt() method was used (#3374)
	- Fix some CSS issues in Settings for Internet Explorer
	- Fixed handling of folder with name "0" in folder selector
	- Fix bug where messages were deleted instead moved to trash folder after Shift key was used (#3376)
	- Fix relative URLs handling according to a <base> in HTML (#3368)
	- Fix handling of top-level domains with more than 5 chars or unicode chars (#3366)
	- Fix usage of non-standard HTTP error codes (#3297)
	- Fix PHP warning on mistaken in_array() usage (#3375)

	## Release 0.5.2

	- TinyMCE 3.4.2 now compatible with IE9
	- PEAR::Net_SMTP 1.5.2, fixed timeout issue (#3332)
	- Fix bug where template name without plugin prefix was used in render_page hook
	- Support 'abort' and 'result' response in 'preferences_save' hook, add error handling
	- Fix bug where some content would cause hang on html2text conversion (#3348)
	- Improve space-stuffing handling in format=flowed messages (#3346)
	- Fix bug where some dates would produce SQL error in MySQL (#3342)
	- Added workaround for some IMAP server with broken STATUS response (#3344)
	- Fix bug where default_charset was not used for text messages (#3328)
	- Stateless request tokens. No keep-alive necessary on login page (#3325)
	- Force names of unique constraints in PostgreSQL DDL
	- Add code for prevention from IMAP connection hangs when server closes socket unexpectedly
	- Remove redundant DELETE query (for old session deletion) on login
	- Get around unreliable rand() and mt_rand() in session ID generation (#2516)
	- Fix some emails are not shown using Cyrus IMAP (#3316)
	- Fix handling of mime-encoded words with non-integral number of octets in a word (#3301)
	- Fix parsing links with non-printable characters inside (#3305)
	- Fixed de_CH Localization bugs (#3279)
	- Add variable for 'Today' label in date_today option (#2394)
	- Fix dont_override setting does not override existing user preferences (#3205)
	- Use only one from IMAP authentication methods to prevent login delays (1487784)
	- Support strftime format in date_today option
	- Fix SQL query in rcube_user::query() so it uses index on MySQL again
	- Removed redundant </form> tags from contact add/edit pages
	- Fix CSS error in contact details screen on IE7 (#3281)

	## Release 0.5.1

	- Fix handling of attachments with invalid content type (#3275)
	- Add workaround for DBMail's bug http://www.dbmail.org/mantis/view.php?id=881 (#3274)
	- Use IMAP's ID extension (RFC2971) to print more info into debug log
	- Security: add optional referer check to prevent CSRF in GET requests
	- Fix email_dns_check setting not used for identities/contacts (#3251)
	- Fix ICANN example addresses doesn't validate (#3253)
	- Security: protect login form submission from CSRF [CVE-2011-1491]
	- Security: prevent from relaying malicious requests through modcss.inc [CVE-2011-1492]
	- Fix handling of non-image attachments in multipart/related messages (#3261)
	- Fix IDNA support when IDN/INTL modules are in use (#3253)
	- Fix handling of invalid HTML comments in messages (#3269)
	- Fix parsing FETCH response for very long headers (#3264)
	- Fix add/remove columns in message list when message_sort_order isn't set (#3262)
	- Check mime headers before attempt to parse them (#3256)
	- Quote header values in show_additional_headers plugin (#3255)
	- Fix settings UI on IE 6 (#3246)
	- Remove double borders in folder listing (#3236)
	- Separate full message headers UI element from headers table (#3238)
	- Add part MIME ID to message_part_* hooks (#3241)
	- Improve parsing of MS Outlook vCards (#3239)
	- Updated PEAR::Net_Socket to 1.0.10
	- Updated PEAR::Net_IDNA2 to 0.1.1
	- Fix handling of comments inside an email address spec. (#3210)
	- Show full mail subject as title when hovering a cut subject link (#3141)
	- Fix randomly disappearing folders list in IE (#3231)
	- Fix list column add/removal in IE (#3230)
	- Fix login redirect issues (#3221)
	- Require PHP 5.2.1 or greater
	- Fix %h/%z variables in username_domain option (#3228)
	- Workaround for setting charset in case of malformed bodystructure response (#3227)
	- Fix impossible to subscribe to protected folders (#3199)
	- Fix setting timezone in Preferences (#3232)

	## Release 0.5

	- Fix double-login/session issue (#3124)
	- Wrap HTML parts with <html><body> and add Doctype declaration (#3119)
	- Make rcube_autoload silently skip unknown classes (#3128)
	- Fix charset detection in vcards with encoded values (#1934)
	- Better CSS cursors for splitters (#2954)
	- Show the same message only once (#3186)
	- Fix namespaces handling (#3192)
	- Add handling of multifolder METADATA/ANNOTATION responses
	- Fix handling of INBOX when personal namespace prefix is non-empty (#3200)
	- Fix handling square brackets in links (#3209)
	- Add description of 'use_https' option in main.inc.php.dist file

	## Release 0.5-RC

	- Plugin API: Add 'pass' argument in 'authenticate' hook (#3147)
	- Fix attachments of type message/rfc822 are not listed on attachments list
	- Add 'login_lc' config option for case-insensitive authentication (#3131)
	- Fix window is blur'ed in IE when selecting a message (#3161)
	- Fix cursor position on compose form in Webkit browsers (#2796)
	- Fix setting charset of attachment filenames (#3136)
	- Allow setting autocomplete attribute for all inputs separately (#3158)
	- New Folder Manager UI
	- Fix invalid Request when creating a folder (#3165)
	- Add folder size and quota indicator in folder manager (#2112)
	- Add possibility to move a subfolder into root folder (#2890)
	- Fix copying all messages in a folder copies only messages from current page
	- Improve performance of moving or copying of all messages in a folder
	- Fix plaintext versions of HTML messages don't contain placeholders for emotions (#1657)
	- Improve performance of folder rename and delete actions
	- Better support for READ-ONLY and NOPERM responses handling (#3108)
	- Add confirmation message on purge/expunge command response
	- Fix handling of untagged responses for AUTHENTICATE command (#3171)
	- Add username and IP address to log message on unsuccessful login (#3176)
	- Improved Mail-Followup-To and Mail-Reply-To headers handling
	- Fix charset conversion for text attachments without charset specification (#3181)

	## Release 0.5-BETA

	- Make session data storage more robust against garbage session data (#3148)
	- Config option for autocomplete on login screen
	- Allow plugin templates to include local files (#3146)
	- List groups in address detail view and allow to subscribe/unsubscribe from there (#2862)
	- Messages caching: performance improvements, fixed syncing, fixes related with #2857
	- Add link to identities in compose window (#2843)
	- Add Internationalized Domain Name (IDNA) support (#729)
	- Add option to automatically send read notifications for known senders (#2199)
	- Add option to "Return receipt" will be always checked (#2571)
	- Fix HTML to plain text conversion doesn't handle citation blocks (#2992)
	- Use custom sorting when SORT is disabled by IMAP admin (#3020)
	- Allow setting some washtml options from plugin (#2727)
	- Add option do bind for an individual LDAP address book (#3048)
	- Change reply prefix to display email address only if sender name doesn't exist (#2709)
	- Plugin API: improved 'abort' flag handling, added 'result' item in some hooks (#2988)
	- Fix mailto optional params in plain text messages aren't handled (#3071)
	- Add Reply-to-List feature (#977)
	- Add Mail-Followup-To/Mail-Reply-To support (#1937)
	- Fix confirmation message isn't displayed after sending mail on Chrome (#2437)
	- Fix keyboard doesn't work with autocomplete list with Chrome (#3073)
	- Improve tabs to fixed width and add tabs in identities info (#3030)
	- Add unique index on users.username+users.mail_host
	- Make htmleditor option more consistent and add option to use HTML on reply to HTML message (#2164)
	- Use empty envelope sender address for message disposition notifications (RFC 2298.3)
	- Support SMTP Delivery Status Notifications - RFC 3461 (#2409)
	- Use css sprite image for messages list
	- Add (different) attachment icon for messages of type multipart/report (#2426)
	- Prevent from inserting empty link when composing HTML message (#3007)
	- Add caching support in id2uid and uid2id functions (#3065)
	- Add SASL proxy authentication for SMTP (#2811)
	- Improve displaying of UI messages (#3033)
	- Fix double e-mail filed in identity form (#3088)
	- Display IMAP errors for LIST/THREAD/SEARCH commands (#2981)
	- Add LITERAL+ (IMAP4 non-synchronizing literals) support (RFC 2088)
	- Add separate column for message status icon (#2788)
	- Add ACL extension support into IMAP classes (RFC 4314)
	- Add ANNOTATEMORE extension support into IMAP classes (draft-daboo-imap-annotatemore)
	- Add METADATA extension support into IMAP classes (RFC 5464)
	- Fix decoding of e-mail address strings in message headers (#3097)
	- Fix handling of attachments when Content-Disposition is not inline nor attachment (#3086)
	- Improve performance of unseen messages counting (#3090)
	- Improve performance of messages counting using ESEARCH extension (RFC4731)
	- Add LIST-STATUS support in rcube_imap_generic class (RFC 5819)
	- Add SASL-IR support in IMAP (RFC 4959)
	- Add LOGINDISABLED support (RFC 2595)
	- Add support for AUTH=PLAIN in IMAP authentication
	- Re-implemented SMTP proxy authentication support
	- Add support for IMAP proxy authentication (#2808)
	- Add support for AUTH=DIGEST-MD5 in IMAP (RFC 2831)
	- Fix parent folder with unread subfolder not bold when message is open (#3104)
	- Add basic IMAP LIST's \Noselect option support
	- Add support for selection options from LIST-EXTENDED extension (RFC 5258)
	- Don't list subscribed but non-existent folders (#2474)
	- Fix handling of URLs with tilde (~) or semicolon (;) character (#3110, #3111)
	- Plugin API: added 'contact_form' hook
	- Add SORT=DISPLAY support (RFC 5957)
	- Plugin API: add possibility to disable plugin in AJAX mode, 'noajax' property
	- Plugin API: add possibility to disable plugin in framed mode, 'noframe' property
	- Improve performance of setting IMAP flags using .SILENT suffix
	- Improve performance of message cache status checking with skip_disabled=true
	- Support contact's email addresses up to 255 characters long (#3116)
	- Add option to place replies in the folder of the message being replied to (#2248)
	- Add missing confirmation/error messages on contact/group/message actions (#2935)
	- Add 'loading' message on message move/copy/delete/mark actions
	- Improve responsiveness of messages displaying (#3039)
	- Add option for minimum length of autocomplete's string (#2625)
	- Fix operations on messages in unsubscribed folder (#3126)
	- Add support for shared folders (#525)
	- Fix handling of folders with name "0" (#3133)
	- Fix handling of folders with "<>" characters in name
	- jQuery 1.4.4
	- Fix handling of HTML entity strings in plain text messages
	- Fix focused elements aren't unfocused when clicking on the list (#3137)
	- Fix error in MSSQL DDL scripts (#3130)
	- Lock submit button in onsubmit event on login page (#3078)
	- Don't set attachment's charset in Content-type header (#3136)
	- Fix handling of message bodies (quoted-printable encoded) with NULL characters (#2448)
	- Add workaround for MSOE's multipart/related messages with non-related attachments

	## Release 0.4.2

	- Fix handling of backslash as IMAP delimiter
	- Fix charset replacement in HTML message bodies (#3067)
	- Fix: contact group input is empty when using rename action more than once on the same group record
	- Fix "Server Error! (Not Found)" when using utils/save-pref action (#3069)
	- Fix handling of Thunderbird's vCards (#3070)

	## Release 0.4.1

	- Fix space-stuffing in format=flowed messages (#3064)
	- Fix msgexport.sh now using the new imap wrapper
	- Avoid displaying password on shell (#3010)
	- Only lower-case user name if first login attempt failed (#2600)
	- Make alias setting in squirrelmail_usercopy plugin configurable (patch by pommi, #3056)
	- Prevent from saving a non-existing skin path in user prefs (#3004)
	- Improve handling of single-part messages with bogus BODYSTRUCTURE (#2976)
	- Fix path to SQL files when using pgsql/mysqli/sqlsrv drivers (#2979)
	- Fix upgrade script for SQLite (#2980)
	- Fixes in SQL init script + added update script for MSSQL database
	- Remove redundant date in syslog messages (#3008)
	- Fix contacts list page controls when a group is selected (#3009)
	- Fix SMTP test in Installer (#3014)
	- Fix "Select all" causes message to be opened in folder with exactly one message (#2987)
	- Fix Tab key doesn't work in HTML editor in Google Chrome (#2995)
	- Fix TinyMCE uses zh_CN when zh_TW locale is set (#2998)
	- Fix TinyMCE buttons are hidden in Opera (#2993)
	- Fix JS error on IE when trying to send HTML message with enabled spellchecker (#3006)
	- Display inline images with known extensions and non-image content-type (#3002)
	- Fix "Threaded" checkbox after subfolder creation (#2997)
	- Fix timezone string in sent mail (#3021)
	- Show disabled checkboxes for protected folders instead of dots (#1898)
	- Added fieldsets in Identity form, added 'identity_form' hook
	- Re-added 'Close' button in upload form (#2999, #2917)
	- Fix handling of charsets with LATIN-* label
	- Fix messages background image handling in some cases (#3043)
	- Fix format=flowed handling (#3042)
	- Fix when IMAP connection fails in 'get' action session shouldn't be destroyed (#3046)
	- Fix list_cols is not updated after column dragging (#3050)
	- Support %z variable in host configuration options (#3054)

	## Release 0.4

	- Fix disappearing upload form disappears when user selects a file on Safari (#2917)
	- Don't replace error messages with loading info (#2534)
	- Fix JS errors on compose mode switch (#2952)
	- Fix message structure parsing when it lacks optional fields (#2960)
	- Include all recipients in sendmail log
	- Support HTTP_X_FORWARDED_PROTO header for HTTPS detecting (#2950)
	- Fix default IMAP port configuration (#2948)
	- Create Sent folder when starting to compose a new message (#2900)
	- Fix handling of messages with Content-Type: application/* and no filename (#840)
	- Improved compose screen: resizable body and attachments list, vertical splitter, options menu
	- Fix RC forgets search results (#722)
	- TinyMCE 3.3.7
	- Improve parsing of styled empty tags in HTML messages (#2908)
	- Add %dc variable support in base_dn/bind_dn config (#2881)
	- Add button to hide/unhide the preview pane (#955)
	- Fix no-cache headers on https to prevent content caching by proxies (#2897)
	- Fix attachment filenames broken with TNEF decoder using long filenames (#2894)
	- Use user's timezone in Date header, not server's timezone (#2393)
	- Add option to set separate footer for HTML messages (#2784)
	- Add real SMTP error description to displayed error messages (#2233)
	- Fix some IMAP errors handling when opening the message (#1848)
	- Fix related parts aren't displayed when got mimetype other than image/* (#2629)
	- Multiple identity and database support for squirrelmail_usercopy plugin (#2686)
	- Support dynamic hostname (%d/%n) variables in configuration options (#1843)
	- Add 'messages_list' hook (#2504)
	- Add request* event triggers in http_post/http_request (#2340)
	- Fix use RFC-compliant line-delimiter when saving messages on IMAP (#2828)
	- Add 'imap_timeout' option (#2869)
	- Fix forwarding of messages with winmail attachments
	- Fix handling of uuencoded attachments in message body (#2163)
	- Added list_mailboxes hook in rcube_imap::list_unsubscribed() (#2791)
	- Fix wrong message on file upload error (#2839)
	- Add support for data URI scheme [RFC2397] (#2851)
	- Added 'actionbefore', 'actionafter', 'responsebefore', 'responseafter' events
	- Fix double-addition of e-mail domain to content ID in HTML images
	- Read and send messages with format=flowed (#1052), fixes word wrapping issues (#2703)
	- Fix duplicated attachments when forwarding a message (#2670)
	- Fix message/rfc822 attachments containing only attachments are not parsed properly (#2854)
	- Fix %00 character in winmail.dat attachments names (#2850)
	- Fix handling errors of folder deletion (#2821)
	- Parse untagged CAPABILITY response for LOGIN command (#2853)
	- Renamed all php-cli scripts to use .sh extension
	- Some files from /bin + spellchecking actions moved to the new 'utils' task
	- Added thread tree icons
	- Extend contact groups support (#2802)
	- Fix check-recent action issues and performance (#2690)
	- Fix messages order after checking for recent (#1249)
	- Fix autocomplete shows entries without email (#2640)
	- Fix listupdate event doesn't trigger on search response (#2824)
	- Fix select_all_mode value after selecting a message (#2834)
	- Set focus to editor on reply in HTML mode (#2768)
	- Fix composing in HTML jumps cursor to body instead of recipients (#2796)
	- Allow columns order change per user - drag&drop (#2124)
	- Add References header in read receipt (#2801)
	- Fix database constraint violation when opening a message (#2814)
	- Add 'loading' message while login is in progress (#2790)
	- Fix quota_zero_as_unlimited (#2786)
	- Fix folder subscription checking (#2804)
	- Fix INBOX appears (sometimes) twice in mailbox list (#2794)
	- Fix listing of attachments of some types e.g. "x-epoc/x-sisx-app" (#2779)
	- Fix DB Schema checking when some db_table_* options are not set (#2780)

	## Release 0.4-beta

	- Add sizelimit and timelimit variables in LDAP config (#2704)
	- Hide IMAP host dropdown when single host is defined (#2553)
	- Add images pre-loading on login page (#623)
	- Add HTTP_X_REAL_IP and HTTP_X_FORWARDED_FOR to successful logins log (#2634)
	- Fix setting spellcheck languages with extended codes (#2747)
	- Fix messages list scrolling in FF3.6 (#2657)
	- Fix quicksearch input focus (#2770)
	- Always set changed date when flagging a DB record as deleted + provide a cleanup script
	- Fix address book/group selection (#2760)
	- Assign newly created contacts to the active group (#2764)
	- Added option not to mark messages as read when viewed in preview pane (#1513)
	- Allow plugins modify the Sent folder when composing (#2708)
	- Added optional (max_recipients) support to restrict total number of recipients per message (#1167)
	- Re-organize editor buttons, add blockquote and search buttons
	- Make possible to write inside or after a quoted html message (#1878)
	- Fix bugs on unexpected IMAP connection close (#2449, #2507)
	- Iloha's imap.inc rewritten into rcube_imap_generic class
	- Added contact groups in address book (not finished yet)
	- Added PageUp/PageDown/Home/End keys support on lists (#2627)
	- Added possibility to select all messages in a folder (#1312)
	- Added 'imap_force_caps' option for after-login CAPABILITY checking (#2087)
	- Password: Support dovecotpw encryption
	- TinyMCE 3.3.1
	- Implemented messages copying using drag&drop + SHIFT (#863)
	- Improved performance of folders operations (#2689)
	- Fix blocked.gif attachment is not attached to the message (#2685)
	- Managesieve: import from Horde-INGO
	- Managesieve: support for more than one match (#2362)
	- Managesieve: support for selectively disabling rules within a single sieve script (#2198)
	- Threaded message listing now available
	- Added sorting by ARRIVAL and CC
	- Message list columns configurable by the user
	- Removed 'index_sort' option, now we're using empty 'message_sort_col' for this
	- virtuser_query: support other identity data (#2413)
	- Options virtuser_* replaced with virtuser_* plugins
	- Plugin API: Implemented 'email2user' and 'user2email' hooks
	- Fix forwarding message omits CC header (#2538)
	- Add 'default_charset' option to user preferences (#1855)
	- Add 'delete_always' option to user preferences
	- Support/Require tls:// prefix in 'smtp_server' option for TLS connections
	- Fix inconsistent behaviour of 'delete_always' option (#2533)
	- Fix deleting all messages from last list page (#2528)
	- Flag original messages when sending a draft (#2458)
	- Changed signature separator when top-posting (#2555)
	- Let the admin define defaults for search modifiers (#2211)
	- Fix long e-mail addresses validation (#2641)
	- Remember search modifiers in user prefs (#2411)
	- Added force_7bit option to force MIME encoding of plain/text messages (#2679)
	- Use case sensitive check when checking for default folders (#2567)
	- Fix checking for new mail: now checks unseen count of inbox (#2123)
	- Improve performance by avoiding unnecessary updates to the session table (#2552)
	- Fix invalid <font> tags which cause HTML message rendering problems (#2687)
	- Fix CVE-2010-0464: Disable DNS prefetching (#2639)
	- Fix Received headers to behave better with SpamAssassin (#2682)
	- Password: Make passwords encoding consistent with core, add 'password_charset' global option (#2658)
	- Fix adding contacts SQL error on mysql (#2645)
	- Squirrelmail_usercopy: support reply-to field (#2678)
	- Fix IE spellcheck suggestion popup issue (#2656)
	- Fix email address auto-completion shows regexp pattern (#2498)
	- Fix merging of configuration parameters: user prefs always survive (#2584)
	- Fix quota indicator value after folder purge/expunge (#2671)
	- Fix external mailto links support for use as protocol handler (#2328)
	- Fix attachment excessive memory use, support messages of any size (#1245)
	- Fix setting task name according to auth state
	- Password: fix vpopmaild driver (#2662)
	- Add workaround for MySQL bug [http://bugs.mysql.com/bug.php?id=46293] (#2659)
	- Fix quoted text wrapping when replying to an HTML email in plain text (#897)
	- Fix handling of extended mailto links (with params) (#2573)
	- Fix sorting by date of messages without date header on servers without SORT (#2521)
	- Fix inconsistency when not using default table names (#2652)
	- Fix folder rename/delete buttons do not appear on creation of first folder (#2653)
	- Fix character set conversion fails on systems where iconv doesn't accept //IGNORE (#2590)
	- Log in performance: Create default folders on first login only
	- Import contacts into the selected address book (by Phil Weir)
	- Add support for MDB2's 'sqlsrv' driver (#2602)
	- Use jQuery-1.4
	- Removed problematic browser-caching of messages
	- Fix incompatibility with suhosin.executor.disable_emodifier (#2549)
	- Use PLAIN auth when CRAM fails and imap_auth_type='check' (#2587)
	- Fix removal of <title> tag from HTML messages (#2629)
	- Fix 'force_https' to specified port when URL contains a port number (#2612)
	- Fix to-text converting of HTML entities inside b/strong/th/hX tags (#2621)
	- Bug in spellchecker suggestions when server charset != UTF8 (#2607)
	- Managesieve: Fix requires generation for multiple actions (#2603)
	- Fix LDAP problem with special characters in RDN (#2548)
	- Improved handling of message parts of type message/rfc822
	- Plugin API: added 'quota' hook
	- Fix parsing conditional comments in HTML messages (#2569)
	- Use built-in json_encode() for proper JSON format in AJAX replies
	- Allow setting only selected params in 'message_compose' hook (#2543)
	- Plugin API: added 'message_compose_body' hook (#2520)
	- Fix counters of all folders are checked in 'getunread' action with check_all_folders disabled (#2399)
	- Fix displaying alternative parts in messages of type message/rfc822 (#2488)
	- Fix possible messages exposure when using Roundcube behind a proxy (#2516)
	- Fix unicode para and line separators in javascript response (#2542)
	- Additional_message_headers: allow unsetting headers, support plugin's config file (#2505)
	- Fix displaying of hidden directories in skins list (#2535)
	- Fix open_basedir restriction error when reading skins list (#2537)
	- Fix pasting from Office apps into html editor (#2508)
	- Fix empty <a> tags parsing (#2509)
	- Don't cut off attachment names when using non-RFC2231 encoding (#1912)
	- Allow inserting signatures above replied message body (#991)
	- Managesieve 2.0: multi-script support
	- Fix imap_auth_type regression (#2502)

	## Release 0.3.1

	- Specify toolbar container in compose template (#2489)
	- Fix $_SERVER['HTTPS'] check for SSL forcing on IIS (#2486)
	- Avoid unnecessary page loads for selected tab (#2324)
	- Fix quota indicator issues by content generation on client-size (#2454, #2470)
	- Don't display disabled sections in Settings (#2380)
	- Added server-side e-mail address validation with 'email_dns_check' option (#2175)
	- Fix login page loading into an iframe when session expires (#2253)
	- Allow setting port number in 'force_https' option (#2373)
	- Option 'force_https' replaced by 'force_https' plugin
	- Fix IE issue with non-UTF-8 characters in AJAX response (#2422)
	- Partially fixed "empty body" issue by showing raw body of malformed message (#2427)
	- Fix importing/sending to email address with whitespace (#2467)
	- Added XIMSS (CommuniGate) driver for Password plugin
	- Fix newly attached files are not saved in drafts w/o editing any text (#2457)
	- Added attachment upload indicator with parallel upload (#2344)
	- Use default_charset for bodies of messages without charset definition (#2446)
	- Password: added cPanel driver
	- Fix return to first page from e-mail screen (#2385)
	- Fix handling HTML comments in HTML messages (#2448)
	- Fix folder/messagelist controls alignment - icons used (#2356)
	- Fix LDAP addressbook shows 'Contact not found' error sometimes (#2438)
	- Fix cache status checking + improve cache operations performance (#2384)
	- Prevent from setting INBOX as any of special folders (#2390)
	- Fix regular expression for e-mail address (#2417)
	- Fix Received header format
	- Implemented sorting by message index - added 'index_sort' option (#2240)
	- Fix dl() use in installer (#2415)
	- Added 'ldap_debug' option
	- Fix "Empty startup greeting" bug (#2369)
	- Fix setting user name in 'new_user_identity' plugin (#2405)
	- Fix incorrect count of new messages in folder list when using multiple IMAP clients (#2289)
	- Fix all folders checking for new messages with disabled caching (#2399)
	- Support skins in 'archive' and 'markasjunk' plugins
	- Added 'html_editor' hook (#2353)
	- Fix DB constraint violation when populating messages cache (#2338)
	- Password: added password strength options (#2348)
	- Fix LDAP partial result warning (#1928)
	- Fix delete in message view deletes permanently with flag_for_deletion=true (#2382)
	- Use faster/secure mt_rand() (#2376)
	- Fix roundcube hangs on empty inbox with bincimapd (#2375)
	- Fix wrong headers for IE on servers without $_SERVER['HTTPS'] (#2232)
	- Force IE style headers for attachments in non-HTTPS session, 'use_https' option (#2023)
	- Check 'post_max_size' for upload max filesize (#2372)
	- Password Plugin: Fix %d inserts username instead of domain (#2371)
	- Fix rcube_mdb2::affected_rows() (#2366)

	## Release 0.3-stable

	- Fix gn and givenName should be synonymous in LDAP addressbook (#2208)
	- Add mail_domain to LDAP email entries without @ sign (#1652)
	- Fix saving empty values in LDAP contact data (#2113)
	- Fix LDAP contact update when RDN field is changed (#2119)
	- Fix LDAP attributes case sensitivity problems (#2155)
	- Fix LDAP addressbook browsing when only one directory is used (#2314)
	- Fix endless loop on error response for APPEND command (#2346)
	- Don't require date.timezone setting in installer (#2284)
	- Fix date sorting problem with Courier IMAP server (#2351)
	- Unselect pressed buttons on mouse up (#2283)
	- Don't set php_value error_log in .htaccess but mention in INSTALL (#2230)
	- Fix too small status/flag/attachment columns in Safari 4 (#2349)
	- Fix selection disabling while dragging splitter in webkit browsers (#2342)
	- Added 'new_messages' plugin hook (#2298)
	- Added 'logout_after' plugin hook (#2333)
	- Added 'message_compose' hook
	- Added 'imap_connect' hook (#2256)
	- Fix vcard_attachments plugin (#2326)
	- Updated PEAR::Auth_SASL to 1.0.3 version
	- Use sequence names only with PostgreSQL (#2310)
	- Re-designed User Preferences interface
	- Fix MS SQL DDL (#2312)
	- Fix rcube_mdb2.php: call to setCharset not implemented in mssql driver (#2311)
	- Added 'display_next' option
	- Fix rcube_mdb2::unixtimestamp for MS SQL (#2308)
	- Fix HTML washing to respect character encoding
	- Fix endless loop in iil_C_Login() with Courier IMAP (#2303)
	- Fix #messagemenu display on IE (#2299)
	- Speedup UI by using sprites for (toolbar) buttons
	- Fix charset names with X- prefix handling
	- Fix displaying of HTML messages with unknown/malformed tags (#2296)

	## Release 0.3-RC1

	- Fix import of vCard entries with params (#1857)
	- Fix HTML messages output with empty block elements (#2271)
	- Use request tokens to protect POST requests from CSRF [CVE-2009-4076, CVE-2009-4077]
	- Added hook when killing a session
	- Added hook to write_log function (#2268)
	- Performance improvements by use UID commands (#2046)
	- Fix HTML editor tabIndex setting (#2269)
	- Added 'imap_debug' and 'smtp_debug' options
	- Support strftime's format modifiers in date_* options (#1354)
	- Support %h variable in 'smtp_server' option (#2101)
	- Show SMTP errors in browser (#2233)
	- Allow WBR tag in HTML message (#2259)
	- Use spl_autoload_register() instead of __autoload (#2250)
	- Add hook for identities listing (#2257)
	- Trigger hook 'smtp_connect' when opening an SMTP connection (#2255)
	- Added config option to enforce HTTPS connections
	- Fix non-unicode characters caching in unicode database (#1209)
	- Performance improvements of messages caching
	- Fix empty Date header issue (#2229)
	- Open collapsed folders during drag & drop (#2221)
	- Fixed link text replacements (#2120)
	- Also trigger 'insertrow' events on page load (#2151)
	- No link on subject in IE browsers (#1438)
	- Fixed filename encoding according to RFC2231 (#2192)
	- Added message Edit feature (#727, #1101)
	- Fix message Etag generation for counter issues (#1996)
	- Fix messages searching on MailEnable IMAP (#2097)
	- Fixed many 'skip_deleted' issues (#2006)
	- Fixed messages list sorting on servers without SORT capability
	- Colorized signatures in plain text messages
	- Reviewed/fixed skip_deleted/read_when_deleted/flag_for_deletion options handling in UI
	- Fix displaying of big maximum upload filesize (#2205)
	- Added possibility to invert messages selection
	- After move/delete from 'show' action display next message instead of messages list (#2203)
	- Fixed problem with double quote at the end of folder name (#2200)
	- Speedup UI by using CSS sprites and etags/expires/deflate in Apache config (#1397,#2128)
	- Support UID EXPUNGE: remove only moved/deleted messages
	- Add drag cancelling with ESC key (#1036)
	- Support initial identity name from virtuser_query (#807)
	- Added message menu, removed Print and Source buttons
	- Added possibility to save message as .eml file (#2178)
	- Added 1 minute interval in autosave options (#2173)
	- Support UTF-7 encoding in messages (#2156)
	- Better support for malformed character names (#2093)

	## Release 0.3-BETA

	- Plugin API + jQuery engine
	- Added possibility to encrypt received header, option 'http_received_header_encrypt',
	added some more logic in encrypt/decrypt functions for security
	- Fix Answered/Forwarded flag setting for messages in subfolders
	- Fix autocomplete problem with capital letters (#2122)
	- Support UUencode content encoding (#2163)
	- Minimize chance of race condition in session handling (#1260)
	- Fix session handling on non-session SQL query error (#2078)
	- Fix html editor mode setting when reopening draft message (#2158)
	- Added quick search box menu (#1010)
	- Fix wrong column sort order icons (#2149)
	- Updated TinyMCE to 3.2.3 version
	- Fix attachment names encoding when charset isn't specified in attachment part (#1483)
	- Fix message normal priority problem (#2146)
	- Fix autocomplete spinning wheel does not disappear (#2132)
	- Added log_date_format option (#2060)
	- Fix text wrapping in HTML editor after switching from plain text to HTML (#1917)
	- Fix auto-complete function hangs with plus sign (#2141)
	- Fix AJAX requests errors handler (#1503)
	- Speed up message list displaying on IE
	- Fix read/write database recognition (#2137)

	## Release 0.2.2

	- Fix quicksearchbox look in Chrome and Konqueror (#1380)
	- Fix UTF-8 byte-order mark removing (#1911)
	- Fix folders subscriptions on Konqueror (#1380)
	- Fix debug console on Konqueror and Safari
	- Fix messagelist focus issue when modifying status of selected messages (#2134)
	- Support STARTTLS in IMAP connection (#1714)
	- Fix DEL key problem in search boxes (#1923)
	- Support several e-mail addresses per user from virtuser_file (#2036)
	- Fix drag&drop with scrolling on IE (#2117)
	- Fix adding signature separator in html mode (#1768)
	- Fix opening attachment marks message as read (#2131)
	- Fix 'temp_dir' does not support relative path under Windows (#1157)
	- Fix "Initialize Database" button missing from installer (#2130)
	- Fix compose window doesn't fit 1024x768 window (#1807)
	- Fix service not available error when pressing back from compose dialog (#1942)
	- Fix using mail() on Windows (#2111)
	- Fix word wrapping in message-part's <PRE>s for printing (#2118)
	- Fix incorrect word wrapping in outgoing plaintext multibyte messages (#2062)
	- Fix double footer in HTML message with embedded images
	- Fix TNEF implementation bug (#2107)
	- Fix incorrect row id parsing for LDAP contacts list (#2116)
	- Fix 'mode' parameter in sqlite DSN (#2106)

	## Release 0.2.1

	- Use US-ASCII as failover when Unicode searching fails (#2097)
	- Fix errors handling in IMAP command continuations (#2097)
	- Fix FETCH result parsing for servers returning flags at the end of result (#2098)
	- Fix datetime columns defaults in mysql's DDL (#2012)
	- Fix attaching more than nine inline images (#2094)
	- Support 'UNICODE-1-1-UTF-7' alias for UTF-7 encoding (#2093)
	- Fix mime-type detection using a hard-coded map (#1735)
	- Don't return empty string if charset conversion failed (#2092)
	- Disable concurrent autocomplete query results display (#2082)
	- Fix new lines stripped from message footer (#2088)
	- Fix IE problem with mouse click autocomplete (#2080)
	- Fix html body washing on reply/forward + fix attachments handling (#2034)
	- Fix multiple recipients input parsing (#2077)
	- Fix replying to message with html attachment (#2034)
	- Use default_charset for messages without specified charset (#2027, #1484961)
	- Support non-standard "GMT-XXXX" literal in date header (#2074)
	- Added TNEF support to decode MS Outlook attachments (winmail.dat)
	- Fix "value continuation" MIME headers by adding required semicolon (#2073)
	- Fix pressing select all/unread multiple times (#2069)
	- Fix selecting all unread does not honor new messages (#2070)
	- Fix some base64 encoded attachments handling (#2071)
	- Support NGINX as IMAP backend: better BAD response handling (#2066)
	- Performance fix: don't fetch attachment parts headers twice to parse filename
	- Fix checking for recent messages on various IMAP servers (#2055)
	- Performance fix: Don't fetch quota and recent messages in "message view" mode
	- Fix displaying of alternative-inside-alternative messages (#2061)
	- Fix MDNSent flag checking, use arbitrary keywords (asterisk) flag (#2059)
	- Fix creation of folders with '&' sign in name
	- Fix parsing of email addresses without angle brackets (#2048)
	- Save spellcheck corrections when switching from plain to html editor (and spellchecking is on)
	- Fix large search results on server without SORT capability (#2031)
	- Get rid of preg_replace() with eval modifier and create_function usage (#2042)
	- Bring back <base> and <link> tags in HTML messages
	- Fix XSS vulnerability through background attributes [CVE-2009-0413]
	- Fix problems with backslash as IMAP hierarchy delimiter (#1116)
	- Secure vcard export by getting rid of preg's 'e' modifier use (#2045)
	- Fix authentication when submitting form with existing session (#2037)
	- Allow absolute URLs to images in HTML messages/sigs (#2029)
	- Fix message body which contains both inline attachments and emotions
	- Fix SQL query execution errors handling in rcube_mdb2 class (#1907)
	- Fix address names with '@' sign handling (#2022)
	- Improve messages display performance
	- Fix messages searching with 'to:' modifier

	## Release 0.2-STABLE

	- Fix mark popup in IE 7 (#1785)
	- Fix line-break issue when copy & paste in Firefox (#1832)
	- Fix autocomplete "unknown server error" (#2008)
	- Fix STARTTLS before AUTH in SMTP connection (#1415)
	- Support multiple quota values in QUOTAROOT response (#1999)
	- Only abbreviate file name for IE < 7 browsers (#1548)
	- Performance: allow setting imap root dir and delimiter before connect (#1628)
	- Fix sorting of folders with more than 2 levels (#1953)
	- Fix search results page jumps in LDAP addressbook (#1689)
	- Fix empty line before the signature in IE (#1769)
	- Fix horizontal scrollbar in preview pane on IE (#1228)
	- Add Robots meta tag in login page and installer (#1385)
	- Added 'show_images' option, removed 'addrbook_show_images' (#1977)
	- Option to check for new mails in all folders (#1053)
	- Don't set client busy when checking for new messages (#1706)
	- Allow UTF-8 folder names in config (#1960)
	- Add junk_mbox option configuration in installer (#1960)
	- Do serverside addressbook queries for autocompletion (#1925)
	- Allow setting attachment col position in 'list_cols' option
	- Allow override 'list_cols' via skin (#1958)
	- Fix 'cache' table cleanup on session destroy (#1913)
	- Increase speed of session destroy and garbage clean up
	- Fix session timeout when DB server got clock skew (#1890)
	- Fix handling of some malformed messages (#1099)
	- Speed up raw message body handling
	- Better HTML entities conversion in html2text (#1916)
	- Fix big memory consumption and speed up searching on servers without SORT capability
	- Fix setting locale to tr_TR, ku and az_AZ (#1872)
	- Use SORT for searching on servers with SORT capability
	- Added message status filter
	- Fix empty file sending (#1801)
	- Improved searching with many criteria (calling one SEARCH command)
	- Fix HTML editor initialization on IE (#1731)
	- Add warning when switching editor mode from html to plain (#1888)
	- Make identities list scrollable (#1930)
	- Fix problem with numeric folder names (#1922)
	- Added BYE response simple support to prevent from endless loops in imap.inc (#777)
	- Fix unread message unintentionally marked as read if read_when_deleted=true (#1819)
	- Remove port number from SERVER_NAME in smtp_helo_host (#1915)
	- Don't send disposition notification receipts for messages marked as 'read' (#1918)
	- Added 'keep_alive' and 'min_keep_alive' options (#1777)
	- Added option 'identities_level', removed 'multiple_identities'
	- Allow deleting identities when multiple_identities=false (#1840)
	- Added option focus_on_new_message (#1789)
	- Fix html2text class autoloading on Windows (#1904)
	- Fix html signature formatting when identity save error occurred (#1833)
	- Add feedback and set busy when moving folder (#1897)
	- Fix 'Empty' link visibility for some languages e.g. Slovak (#1889)
	- Fix messages count bar overlapping (#1703)
	- Fix adding signature in drafts compose mode (#1884)
	- Fix iil_C_Sort() to support very long and/or divided responses (#1713)
	- Fix matching case sensitivity when setting identity on reply (#1881)
	- Prefer default identity on reply
	- Fix imap searching on ISMail server (#1870)
	- Add css class for flagged messages (#1868)
	- Write username instead of id in sendmail log (#1879)
	- Fix htmlspecialchars() use for PHP version < 5.2.3 (#1877)
	- Fix js keywords escaping in json_serialize() for IE/Opera (#1874)
	- Added bin/killcache.php script (#1839)
	- Add support for SJIS, GB2312, BIG5 in rc_detect_encoding()
	- Fix vCard file encoding detection for non-UTF-8 strings (#1820)
	- Add 'skip_deleted' option in User Preferences (#1850)
	- Minimize "inline" javascript scripts use (#1838)
	- Fix css class setting for folders with names matching defined classes names (#1772)
	- Fix race conditions when changing mailbox
	- Fix spellchecking when switching to html editor (#1779)
	- Fix compose window width/height (#1807)
	- Allow calling msgimport.sh/msgexport.sh from any directory (#1837)
	- Localized filesize units (#1760)
	- Better handling of "no identity" and "no email in identity" situations (#1592)
	- Added 'mime_param_folding' option with possibility to choose long/non-ascii attachment names encoding e.g. to be readable in MS Outlook/OE (#1743)
	- Added "advanced options" feature in User Preferences
	- Fix unread counter when displaying cached massage in preview panel (#1720)
	- Fix htmleditor spellchecking on MS Windows (#1808)
	- Fix problem with non-ascii attachment names in Mail_mime (#1700, #1576)
	- Fix language autodetection (#1812)
	- Fix button label in folders management (#1816)
	- Fix collapsed folder not indicating unread msgs count of all subfolders (#1814)
	- Fix handling of apostrophes in filenames decoded according to rfc2231

	## Release 0.2-BETA

	- Made config files location configurable (#1664)
	- Reduced memory footprint when forwarding attachments (#1764)
	- Allow and use spellcheck attribute for input/textarea fields (#1545)
	- Added icons for forwarded/forwarded+replied messages (#1691)
	- Added Reply-To to forwarded emails (#1739)
	- Display progress message for folders create/delete/rename (#1774)
	- Smart Tags and NOBR tag support in html messages (#1780, #1748)
	- Redesign of the identities settings (#836)
	- Add config option to disable creation/deletion of identities (#1139)
	- Added 'sendmail_delay' option to restrict messages sending interval (#1135)
	- Added vertical splitter for folders list resizing
	- Added possibility to view all headers in message view
	- Fixed splitter drag/resize on Opera (#1626)
	- Fixed quota img height/width setting from template (#1396)
	- Refactor drag & drop functionality. Don't rely on browser events anymore (#1108)
	- Insert "virtual" folders in subscription list (#1333)
	- Added link to open message in new window
	- Enable export of address book contacts as vCard
	- Add feature to import contacts from vcard files (#395)
	- Respect Content-Location headers in multipart/related messages according to RFC2110 (#1464)
	- Allowed max. attachment size now indicated in compose screen (#1523)
	- Also capture backspace key in list mode (#1186)
	- Allow application/pgp parts to be displayed (#1309)
	- Correctly handle options in mailto-links (#1671)
	- Immediately save sort_col/sort_order in user prefs (#1698)
	- Truncate very long (above 50 characters) attachment filenames when displaying
	- Allow to auto-detect client language if none set (#1095)
	- Auto-detect the client timezone (user configurable)
	- Add RFC2231 header value continuations support for attachment filenames + hack for servers that not support that feature
	- Fix Reply-To header displaying (#1738)
	- Mark form buttons that provide the most obvious operation (mainaction)
	- Added option 'quota_zero_as_unlimited' (#1206)
	- Added PRE handling in html2text class (#1301)
	- Added folder hierarchy collapsing
	- Added options to use syslog instead of log file (#1389)
	- Added Logging & Debugging section in Installer
	- Fix In-Reply-To and References headers when composing saved draft message (#1718)
	- Fix html message charset conversion for charsets with underline (#1717)
	- Fix buttons status after contacts deletion (#1675)
	- Fix escaping of To: and From: fields when building message body for reply or forward in the HTML editor (#1432)
	- Use current mailbox name in template (#1690)
	- Better fix for skipping untagged responses (#1694)
	- Added pspell support patch by Kris Steinhoff (#781)
	- Enable spellchecker for HTML editor (#1589)
	- Respect spellcheck_uri in tinyMCE spellchecker (#941)
	- Case insensitive contacts searching using PostgreSQL (#1692)
	- Make default imap folders configurable for each user (#1558)
	- Save outgoing mail to selectable folder (#1324581)
	- Fix hiding of mark menu when clicking th button again (#1463)
	- Use long date format in print mode (#1643)
	- Updated TinyMCE to version 3.1.0.1
	- Re-enable autocomplete attribute for login form (#1661)
	- Check PERMANENTFLAGS before saving $MDNSent flag (#1478, #1485163)
	- Added flag column on messages list (#1220)
	- Patched Mail/MimePart.php (http://pear.php.net/bugs/bug.php?id=14232)
	- Allow trash/junk subfolders to be purged (#1568)
	- Store compose parameters in session and redirect to a unique URL
	- Fixed CRAM-MD5 authentication (#1364)
	- Fixed forwarding messages with one HTML attachment (#1103)
	- Fixed encoding of message/rfc822 attachments and image/pjpeg handling (#1439)
	- Added option to select skin in user preferences
	- Added option to configure displaying of attached images below the message body
	- Added option to display images in messages from known senders (#1204)
	- User preferences grouped in more fieldsets
	- Fix corrupted MIME headers of messages in Sent folder (#1587)
	- Fixed bug in MDB2 package: http://pear.php.net/bugs/bug.php?id=14124
	- Use keypress instead of keydown to select list's row (#1362)
	- Don't call expunge and don't remove message row after message move if flag_for_deletion is set to true (#1505)

	## Release 0.2-ALPHA

	- Added option to disable autocompletion from selected LDAP address books (#1445)
	- TLS support in LDAP connections: 'use_tls' property (#1581)
	- Fixed removing messages from search set after deleting them (#1583)
	- imap.inc: Fixed iil_C_FetchStructureString() to handle many
	literal strings in response (#1483)
	- Support for subfolders in default/protected folders (#1250)
	- Disallowed delimiter in folder name (#1351)
	- Support " and \ in folder names
	- Escape \ in login (#1214)
	- Better HTML sanitization with the DOM-based washtml script (#1276)
	- Fixed sorting of folders with non-ascii characters
	- Fixed Mysql DDL for default identities creation (#1554)
	- In Preferences added possibility to configure 'read_when_deleted',
	'mdn_requests', 'flag_for_deletion' options
	- Made IMAP auth type configurable (#683)
	- Fixed empty values with FROM_UNIXTIME() in rcube_mdb2 (#1540)
	- Fixed attachment list on IE 6/7 (#1355)
	- Fixed JavaScript in compose.html that shows cc/bcc fields if populated
	- Make password input fields of type password in installer (#1417)
	- Don't attempt to delete cache entries if enable_caching is FALSE (#1537)
	- Optimized messages sorting on servers without sort capability (#1535)
	- Corrected message headers decoding when charset isn't specified and improved
	support for native languages (#1536, #1534)
	- Expanded LDAP configuration options to support LDAP server writes.
	- Installer: encode special characters in DB username/password (#1529)
	- Fixed management of folders with national characters in names (#1526, #1504)
	- Fixed identities saving when using MDB2 pgsql driver (#1525)
	- Fixed BCC header reset (#1501)
	- Improved messages list performance - patch from Justin Heesemann
	- Append skin_path to images location only when it starts with '/' sign (#1398)
	- Fix IMAP response in message body when message has no body (#1479)
	- Fixed non-RFC dates formatting (#1429)
	- Fixed typo in set_charset() (#1498)
	- Decode entities when inserting HTML signature to plain text message (#1497)
	- HTML editing is now working with PHP5 updates and TinyMCE v3.0.6
	- Fixed signature loading on Windows (#1169)
	- Added language support to HTML editing (#1401)
	- Fixed remove signature when replying (#446)
	- Fixed problem with line with a space at the end (#1440)
	- Fixed `<!DOCTYPE>` tag filtering (#1066)
	- Fixed <?xml> tag filtering (#1075)
	- Added sections (fieldset+label) in Settings interface
	- Mark as read in one action with message preview (#1486)
	- Deleted redundant quota reads (#1486)
	- Added options for empty trash and expunge inbox on logout (#707)
	- Removed lines wrapping when displaying message
	- Fixed month localization
	- Changed codebase to PHP5 with autoloader

	## Release 0.1.1

	- Clear selection when selecting single item (#1461)
	- Remove hard-coded image size in skin templates (#1423)
	- Database schema improvements (dropped unnecessary indexes)
	- Fixed creating a new folder with a comma in its name (#1263)
	- Fixed sorting of messages when default mailbox is empty (#1020)
	- Improve message previewpane - less loading (#1019)
	- Fixed login form autocompletion (#1378)
	- Fixed virtuser_query option for mdb2 backend (#1409)
	- Fixed attachment restoring from Drafts when message body was empty (#1144)
	- Fixed usage of ob_gzhandler (#1390)
	- Fixed message part window in IE6 (#1211)
	- Fixed decoding of mime-encoded strings (#938)
	- Fixed some iconv/mb_string problems (#1202)
	- Correctly quote mailbox name when using in URL (#1016)
	- Fixed "headers already sent" errors (#1399)

	## Release 0.1-STABLE

	- Added interactive installer script
	- Fix folder adding/renaming inspired by #1349
	- Localize folder name in page title (#1338)
	- Fix code using wrong variable name (#818)
	- Allow to send mail with BCC recipients only
	- condense TinyMCE toolbar down to one line, removing table buttons (#1306)
	- Add function to mark the selected messages as read/unread (#641)
	- Also do charset decoding as suggested in RFC 2231 (fix #1022)
	- Show message count in folder list and hint when creating a subfolder
	- Distinguish ssl and tls for imap connections (#1252)
	- Added some charset aliases to fix typical mis-labelling (#1185)
	- Remember decision to display images for a certain message during session (#1310)
	- Truncate attachment filenames to 55 characters due to an IE bug (#1313)
	- Make sending of read receipts configurable
	- Respect config when localize folder names (#1280)
	- Also respect receipt and priority settings when re-opening a draft message
	- Remember search results (closes #722), patch by the_glu
	- Add Received header on outgoing mail
	- Upgrade to TinyMCE 2.1.3
	- Allow inserting image attachments into HTML messages while composing (#1179)
	- Implement Message-Disposition-Notification (Receipts)
	- Fix overriding of session vars when register_globals is on (#1255)
	- Fix bug with case-sensitive folder names (#973)
	- Don't create default folders by default
	- Fixed some potential security risks (audited by Andris)
	- Only show new messages if they match the current search (#925)
	- Switch to/from when searching in Sent folder (#1177)
	- Correctly read the References header (#1236)
	- Unset old cookie before sending a new value (#1232)
	- Correctly decode attachments when downloading them (#1235 and #1484642)
	- Suppress IE errors when clearing attachments form (#1043)
	- Log error when login fails due to auto_create_user turned off
	- Filter linked/imported CSS files (closes #844)
	- Improve message compose screen (closes #1060)
	- Select next row after removing one from list (#1063)

	## Release 0.1-RC2

	- Enable drag-&-dropping of folders to a new parent and allow to create subfolders (#637)
	- Suppress IE errors when clearing attachments form (#1043)
	- Set preferences field in user table to NULL (#1062)
	- Log error when login fails due to auto_create_user turned off
	- Filter linked/imported CSS files (closes #844)
	- Improve message compose screen (closes #1060)
	- Select next row after removing one from list (#1063)
	- Make smtp HELO/EHLO hostname configurable (#851)
	- IPv6 Compatibility (#1023), Patch #1484373
	- Unlock interface when message sending fails (#1188)
	- Eval PHP code in template includes (if configured)
	- Show message when folder is empty. Mo more static text in table (#1068)
	- Only display unread count in page title when new messages arrived
	- Fixed wrong delete button tooltip (#785)
	- Fixed charset encoding bug (#1091)
	- Applied patch for LDAP version (#1175)
	- Improved XHTML validation
	- Fix message list selection (#1174)
	- Better fix lowercased usernames (#1120)
	- Update pngbehavior Script as suggested in #1134
	- Fixed moving/deleting messages when more than 1 is selected
	- Applied patch for LDAP contacts listing by Glen Ogilvie
	- Applied patch for more address fields in LDAP contacts (#1074)
	- Add alternative for getallheaders() (fix #1146)
	- Identify mailboxes case-sensitive
	- Sort mailbox list case-insensitive (closes #1032)
	- Fix display of multipart messages from Apple Mail (closes #823)
	- Protect AJAX request from being fetched by a foreign site (XSS)
	- Make autocomplete for loginform configurable by the skin template
	- Fix compose function from address book (closes #1089)
	- Added //IGNORE to iconv call (patch #1086, closes #821)
	- Check if mbstring supports charset (#1003 and #1004)
	- Prefer iconv over mbstring (as suggested in #1004)
	- Check filesize of template includes (#1079)
	- Fixed bug with buttons not dimming/enabling properly after switching folders
	- Fixed compose window becoming unresponsive after saving a draft (#1132)
	- Re-enabled "Back" button in compose window now that bug #1132 is fixed
	- Fixed unresponsive interface issue when downloading attachments (#1138)
	- Lowered status message time from 5 to 3 seconds to improve responsiveness
	- Raised .htaccess upload_max_filesize from 2M to 5M to differ from default php.ini
	- Increased "mailboxcontrols" mail.css width from 160 to 170px to fix non-english languages (#1140)
	- Fix status message bug #1114 with regard to #1041
	- Fix address adding bug reported by David Koblas
	- Applied socket error patch by Thomas Mangin
	- Pass-by-reference workaround for PHP5 in sendmail.inc
	- Fixed buggy imap_root settings (closes #1056)
	- Prevent default events on subject links (#1071)
	- Use HTTP-POST requests for actions that change state

	## Release 0.1-RC1

	- Use global filters and bind username/ for Ldap searches (#909)
	- Hide quota display if imap server does not support it
	- Hide address groups if no LDAP servers configured
	- Add link to message subjects (closes #982)
	- Better SQL query for contact listing/search (closes #1051)
	- Fixed marking as read in preview pane (closes #1048)
	- CSS hack to display attachments correctly in IE6
	- Wrap message body text (closes #901)
	- LDAP access is back in address book (closes #864)
	- Added search function for contacts
	- New Template parsing and output encoding
	- Fixed bugs #884 and #793
	- Fixed message moving procedure (closes #1013)
	- Fixed display of multiple attachments (closes #647)
	- Fixed check for new messages (closes #1015)
	- List attachments without filename
	- New session authentication: Change sessid cookie when login, authentication with sessauth cookie is now configurable.
	Should close bugs #774 and #1484299
	- Correctly translate mailbox names (closes #993)
	- Quote e-mail address links (closes #1007)
	- Updated PEAR::Mail_mime package
	- Accept single quotes for HTML attributes when modifying message body (thanks Jason)
	- Sanitize input for new users/identities (thanks Colin Alston)
	- Don't download HTML message parts
	- Convert HTML parts to plaintext if 'prefer_html' is off
	- Correctly parse message/rfc822 parts (closes #838)
	- Also use user_id for unique key in messages table (closes #857)
	- Hide contacts drop down on blur (closes #946)
	- Make entries in contacts drop down clickable
	- Turn off browser autocompletion on login page
	- Quote <? in text/html message parts
	- Hide border around radio buttons
	- Applied patch for attachment download by crichardson (closes #943)
	- Fixed bug in Postgres DB handling (closes #852)
	- Fixed bug of invalid calls to fetchRow() in rcube_db.inc (closes #996)
	- Fixed array_merge bug (closes #997)
	- Fixed flag for deletion in list view (closes #987)
	- Finally support semicolons as recipient separator (closes ##976)
	- Fixed message headers (subject) encoding
	- check if safe mode is on or not (closes #990)
	- Show "no subject" in message list if subject is missing (closes #971)
	- Solved page caching of message preview (closes #905)
	- Only use gzip compression if configured (closes #967)
	- Fixed priority selector issue (#903)
	- Fixed some CSS issues in default skin (closes #951 and #911)
	- Prevent from double quoting of numeric HTML character references (closes #978)
	- Fixed display of HTML message attachments (closes #927)
	- Applied patch for preview caching (closes #933)
	- Added error handling for attachment uploads
	- Use multibyte safe string functions where necessary (closes #798)
	- Applied security patch to validate the submitted host value (by Kees Cook)
	- Applied security patch to validate input values when deleting contacts (by Kees Cook)
	- Applied security patch that sanitizes emoticon paths when attaching them (by Kees Cook)
	- Applied a patch to more aggressively sanitize a HTML message
	- Visualize blocked images in HTML messages
	- Fixed wrong message listing when showing search results (closes #890)
	- Show remote images when opening HTML message part as attachment
	- Improve memory usage when sending mail (closes #871)
	- Mark messages as read once the preview is loaded (closes #1484132)
	- Include smtp final response in log (closes #862)
	- Corrected date string in sent message header (closes #887)
	- Correctly choose "To" column in sent and draft mailboxes (closes #769)
	- Changed tooltips for message browse buttons (closes #757)
	- Fixed signature delimiter character to be standard (Bug #830)
	- Fixed XSS vulnerability (Bug #877)
	- Remove newlines from mail headers (Bug #827)
	- Selection issues when moving/deleting (Bug #837)
	- Applied patch of Clement Moulin for imap host auto-selection
	- ISO-encode IMAP password for plaintext login (Bugs #792 & #723)
	- Fixed folder name encoding in subscription list (Bug #879)
	- Fixed JS errors in identity list (Bug #885)
	- Translate foldernames in folder form (closes #879)
	- Added first and last buttons to message list, address book
	and message detail
	- Pressing Shift-Del bypasses Trash folder
	- Enable purge command for Junk folder
	- Fetch all aliases if virtuser_query is used instead
	- Re-enabled multi select of contacts (Bug #817)
	- Enable contact editing right after creation (Bug #644)
	- Correct UTF-7 to UTF-8 conversion if mbstring is not available
	- Fixed IMAP fetch of message body (Bug #819)
	- Fixed safe_mode problems (Bug #539)
	- Fixed wrong header encoding (Bug #1483976)
	- Made automatic draft saving configurable
	- Fixed JS bug when renaming folders (Bug #799)
	- Added quota display as image (by Brett Patterson)
	- Corrected creation of a message-id
	- New indentation for quoted message text
	- Improved HTML validity
	- Fixed URL character set (Ticket #616)
	- Fixed saving of contact into MySQL from LDAP query results (Ticket #681)
	- Fixed folder renaming: unsubscribe before rename (Bug #750)
	- Finalized new message parsing (+ caching)
	- Fixed wrong usage of mbstring (Bug #645)
	- Set default spelling language (Ticket #764)
	- Added support for Nox Spell Server
	- Re-built message parsing (Bug #422)
	Now based on the message structure delivered by the IMAP server.
	- Fixed some XSS and SQL injection issues
	- Fixed charset problems with folder renaming
	diff --git a/program/js/app.js b/program/js/app.js
	index 4e86e7188..0c5440637 100644
	--- a/program/js/app.js
	+++ b/program/js/app.js
	@@ -1,10326 +1,10328 @@
	/**
	* Roundcube Webmail Client Script
	*
	* This file is part of the Roundcube Webmail client
	*
	* @licstart The following is the entire license notice for the
	* JavaScript code in this file.
	*
	* Copyright (C) The Roundcube Dev Team
	* Copyright (C) Kolab Systems AG
	*
	* The JavaScript code in this page is free software: you can
	* redistribute it and/or modify it under the terms of the GNU
	* General Public License (GNU GPL) as published by the Free Software
	* Foundation, either version 3 of the License, or (at your option)
	* any later version. The code is distributed WITHOUT ANY WARRANTY;
	* without even the implied warranty of MERCHANTABILITY or FITNESS
	* FOR A PARTICULAR PURPOSE. See the GNU GPL for more details.
	*
	* As additional permission under GNU GPL version 3 section 7, you
	* may distribute non-source (e.g., minimized or compacted) forms of
	* that code without the copy of the GNU GPL normally required by
	* section 4, provided you include this license notice and a URL
	* through which recipients can access the Corresponding Source.
	*
	* @licend The above is the entire license notice
	* for the JavaScript code in this file.
	*
	* @author Thomas Bruederli <roundcube@gmail.com>
	* @author Aleksander 'A.L.E.C' Machniak <alec@alec.pl>
	* @author Charles McNulty <charles@charlesmcnulty.com>
	*
	* @requires jquery.js, common.js, list.js
	*/

	function rcube_webmail()
	{
	this.labels = {};
	this.buttons = {};
	this.buttons_sel = {};
	this.gui_objects = {};
	this.gui_containers = {};
	this.commands = {};
	this.command_handlers = {};
	this.onloads = [];
	this.messages = {};
	this.group2expand = {};
	this.http_request_jobs = {};
	this.menu_stack = [];
	this.menu_buttons = {};
	this.entity_selectors = [];
	this.image_style = {};
	this.uploads = {};

	// webmail client settings
	this.dblclick_time = 500;
	this.message_time = 5000;
	this.preview_delay_select = 400;
	this.preview_delay_click = 60;
	this.identifier_expr = /[^0-9a-z_-]/gi;
	this.uploadTimeout = 0; // 0 = no timeout \| ajax call timeout for loading attachment


	// environment defaults
	this.env = {
	attachments: {},
	request_timeout: 180, // seconds
	draft_autosave: 0, // seconds
	comm_path: './',
	recipients_separator: ',', // @deprecated
	recipients_delimiter: ', ', // @deprecated
	popup_width: 1150,
	popup_width_small: 900,
	thread_padding: '15px'
	};

	// create protected reference to myself
	this.ref = 'rcmail';
	var ref = this;

	// set jQuery ajax options
	$.ajaxSetup({
	cache: false,
	timeout: this.env.request_timeout * 1000,
	error: function(request, status, err){ ref.http_error(request, status, err); },
	beforeSend: function(xmlhttp){ xmlhttp.setRequestHeader('X-Roundcube-Request', ref.env.request_token); }
	});

	// unload fix
	$(window).on('beforeunload', function() { ref.unload = true; });

	// set environment variable(s)
	this.set_env = function(p, value)
	{
	if (p != null && typeof p === 'object' && !value)
	for (var n in p)
	this.env[n] = p[n];
	else
	this.env[p] = value;
	};

	// add a localized label to the client environment
	this.add_label = function(p, value)
	{
	if (typeof p == 'string')
	this.labels[p] = value;
	else if (typeof p == 'object')
	$.extend(this.labels, p);
	};

	// add a button to the button list
	this.register_button = function(command, id, type, act, sel, over)
	{
	var button_prop = {id:id, type:type};

	if (act) button_prop.act = act;
	if (sel) button_prop.sel = sel;
	if (over) button_prop.over = over;

	if (!this.buttons[command])
	this.buttons[command] = [];

	this.buttons[command].push(button_prop);

	if (this.loaded) {
	this.init_button(command, button_prop);
	this.set_button(command, (this.commands[command] ? 'act' : 'pas'));
	}
	};

	// register a button with popup menu, to set its state according to the state of all commands in the menu
	this.register_menu_button = function(button, menu_id)
	{
	if (this.menu_buttons[menu_id]) {
	this.menu_buttons[menu_id][0].push(button);
	}
	else {
	var commands = [];
	$('#' + menu_id).find('a').each(function() {
	var command, link = $(this), onclick = link.attr('onclick');

	if (onclick && String(onclick).match(/rcmail\.command\(\'([^']+)/))
	command = RegExp.$1;
	else
	command = function() { return link.is('.active'); };

	commands.push(command);
	});

	if (commands.length)
	this.menu_buttons[menu_id] = [[button], commands];
	}

	this.set_menu_buttons();
	};

	// set state of a menu button according to state of all menu actions
	this.set_menu_buttons = function()
	{
	// Use timeouts to not block and set menu button states only once
	clearTimeout(this.menu_buttons_timeout);
	this.menu_buttons_timeout = setTimeout(function() {
	$.each(ref.menu_buttons, function() {
	var disabled = true;
	$.each(this[1], function() {
	var is_func = typeof(this) == 'function';
	if ((is_func && this()) \|\| (!is_func && ref.commands[this])) {
	return disabled = false;
	}
	});

	$(this[0]).add($(this[0]).parent('.dropbutton'))
	.addClass(disabled ? 'disabled' : 'active')
	.removeClass(disabled ? 'active' : 'disabled');
	});
	}, 50);
	};

	// register a specific gui object
	this.gui_object = function(name, id)
	{
	this.gui_objects[name] = this.loaded ? rcube_find_object(id) : id;
	};

	// register a container object
	this.gui_container = function(name, id)
	{
	this.gui_containers[name] = id;
	};

	// add a GUI element (html node) to a specified container
	this.add_element = function(elm, container)
	{
	if (this.gui_containers[container] && this.gui_containers[container].jquery)
	this.gui_containers[container].append(elm);
	};

	// register an external handler for a certain command
	this.register_command = function(command, callback, enable)
	{
	this.command_handlers[command] = callback;

	if (enable)
	this.enable_command(command, true);
	};

	// execute the given script on load
	this.add_onload = function(f)
	{
	this.onloads.push(f);
	};

	// initialize webmail client
	this.init = function()
	{
	var n;
	this.task = this.env.task;

	if (!this.env.blankpage)
	this.env.blankpage = 'about:blank';

	// find all registered gui containers
	for (n in this.gui_containers)
	this.gui_containers[n] = $('#'+this.gui_containers[n]);

	// find all registered gui objects
	for (n in this.gui_objects)
	this.gui_objects[n] = rcube_find_object(this.gui_objects[n]);

	// init registered buttons
	this.init_buttons();

	// tell parent window that this frame is loaded
	if (this.is_framed()) {
	parent.rcmail.unlock_frame();
	}

	// enable general commands
	this.enable_command('close', 'logout', 'mail', 'addressbook', 'settings', 'save-pref',
	'compose', 'undo', 'about', 'switch-task', 'menu-open', 'menu-close', 'menu-save', true);

	// set active task button
	this.set_button(this.task, 'sel');

	if (this.env.permaurl)
	this.enable_command('permaurl', 'extwin', true);

	switch (this.task) {

	case 'mail':
	// enable mail commands
	this.enable_command('list', 'checkmail', 'add-contact', 'search', 'reset-search', 'collapse-folder', 'import-messages', true);

	if (this.gui_objects.messagelist) {
	// setup message list cols
	this.msglist_setup(this.env.layout);

	this.env.widescreen_list_template = [
	{className: 'threads', cells: ['threads']},
	{className: 'subject', cells: ['fromto', 'date', 'size', 'status', 'subject']},
	{className: 'flags', cells: ['flag', 'attachment']}
	];

	this.message_list = new rcube_list_widget(this.gui_objects.messagelist, {
	multiselect:true, multiexpand:true, draggable:true, keyboard:true,
	column_movable:this.env.col_movable, dblclick_time:this.dblclick_time
	});
	this.message_list
	.addEventListener('initrow', function(o) { ref.init_message_row(o); })
	.addEventListener('dblclick', function(o) { ref.msglist_dbl_click(o); })
	.addEventListener('keypress', function(o) { ref.msglist_keypress(o); })
	.addEventListener('select', function(o) { ref.msglist_select(o); })
	.addEventListener('dragstart', function(o) { ref.drag_start(o); })
	.addEventListener('dragmove', function(e) { ref.drag_move(e); })
	.addEventListener('dragend', function(e) { ref.drag_end(e); })
	.addEventListener('expandcollapse', function(o) { ref.msglist_expand(o); })
	.addEventListener('column_replace', function(o) { ref.msglist_set_coltypes(o); })
	.init();

	// TODO: this should go into the list-widget code
	$(this.message_list.thead).on('click', 'a.sortcol', function(e){
	return ref.command('sort', $(this).attr('rel'), this);
	});

	this.enable_command('toggle_status', 'toggle_flag', 'sort', true);
	this.enable_command('set-listmode', this.env.threads && !this.is_multifolder_listing());

	// load messages
	var searchfilter = $(this.gui_objects.search_filter).val();
	if (searchfilter && searchfilter != 'ALL')
	this.filter_mailbox(searchfilter);
	else
	this.command('list');

	$(this.gui_objects.qsearchbox).val(this.env.search_text).focusin(function() { ref.message_list.blur(); });
	}

	this.set_button_titles();

	this.env.message_commands = ['show', 'reply', 'reply-all', 'reply-list',
	'move', 'copy', 'delete', 'open', 'mark', 'edit', 'viewsource', 'bounce',
	'print', 'load-attachment', 'download-attachment', 'show-headers', 'hide-headers', 'download',
	'forward', 'forward-inline', 'forward-attachment', 'change-format'];

	if (this.env.action == 'show' \|\| this.env.action == 'preview') {
	this.enable_command(this.env.message_commands, this.env.uid);
	this.enable_command('reply-list', this.env.list_post);

	if (this.env.action == 'show') {
	this.http_request('pagenav', {_uid: this.env.uid, _mbox: this.env.mailbox, _search: this.env.search_request},
	this.display_message('', 'loading'));
	}

	if (this.env.mail_read_time > 0)
	setTimeout(function() {
	ref.http_post('mark', {_uid: ref.env.uid, _flag: 'read', _mbox: ref.env.mailbox, _quiet: 1});
	}, this.env.mail_read_time * 1000);

	if (this.env.blockedobjects) {
	$(this.gui_objects.remoteobjectsmsg).show();
	this.enable_command('load-remote', true);
	}

	// make preview/message frame visible
	if (this.env.action == 'preview' && this.is_framed()) {
	this.enable_command('compose', 'add-contact', false);
	parent.rcmail.show_contentframe(true);
	}

	if ($.inArray('flagged', this.env.message_flags) >= 0) {
	$(document.body).addClass('status-flagged');
	}

	// initialize drag-n-drop on attachments, so they can e.g.
	// be dropped into mail compose attachments in another window
	if (this.gui_objects.attachments)
	$('li > a', this.gui_objects.attachments).not('.drop').on('dragstart', function(e) {
	var n, href = this.href, dt = e.originalEvent.dataTransfer;
	if (dt) {
	// inject username to the uri
	href = href.replace(/^https?:\/\//, function(m) { return m + urlencode(ref.env.username) + '@'});
	// cleanup the node to get filename without the size test
	n = $(this).clone();
	n.children().remove();

	dt.setData('roundcube-uri', href);
	dt.setData('roundcube-name', n.text().trim());
	}
	});

	this.check_mailvelope(this.env.action);
	}
	else if (this.env.action == 'compose') {
	this.env.address_group_stack = [];
	this.env.compose_commands = ['send-attachment', 'remove-attachment', 'send', 'cancel',
	'toggle-editor', 'list-addresses', 'pushgroup', 'search', 'reset-search', 'extwin',
	'insert-response', 'save-response', 'menu-open', 'menu-close', 'load-attachment',
	'download-attachment', 'open-attachment', 'rename-attachment'];

	if (this.env.drafts_mailbox)
	this.env.compose_commands.push('savedraft')

	this.enable_command(this.env.compose_commands, true);

	// add more commands (not enabled)
	$.merge(this.env.compose_commands, ['add-recipient', 'firstpage', 'previouspage', 'nextpage', 'lastpage']);

	if (window.googie) {
	this.env.editor_config.spellchecker = googie;
	this.env.editor_config.spellcheck_observer = function(s) { ref.spellcheck_state(); };

	this.env.compose_commands.push('spellcheck')
	this.enable_command('spellcheck', true);
	}

	// initialize HTML editor
	this.editor_init(this.env.editor_config, this.env.composebody);

	// init canned response functions
	if (this.gui_objects.responseslist) {
	$('a.insertresponse', this.gui_objects.responseslist)
	.attr('unselectable', 'on')
	.mousedown(function(e) { return rcube_event.cancel(e); })
	.on('mouseup keypress', function(e) {
	if (e.type == 'mouseup' \|\| rcube_event.get_keycode(e) == 13) {
	ref.command('insert-response', $(this).attr('rel'));
	$(document.body).trigger('mouseup'); // hides the menu
	return rcube_event.cancel(e);
	}
	});

	// avoid textarea loosing focus when hitting the save-response button/link
	$.each(this.buttons['save-response'] \|\| [], function (i, v) {
	$('#' + v.id).mousedown(function(e){ return rcube_event.cancel(e); })
	});
	}

	// init message compose form
	this.init_messageform();

	this.check_mailvelope(this.env.action);
	}
	else if (this.env.action == 'bounce') {
	this.init_messageform_inputs();
	this.env.compose_commands = [];
	}
	else if (this.env.action == 'get') {
	this.enable_command('download', true);
	this.enable_command('image-scale', 'image-rotate', !!/^image\//.test(this.env.mimetype));

	// Mozilla's PDF.js viewer does not allow printing from host page (#5125)
	// to minimize user confusion we disable the Print button on Firefox < 75
	this.enable_command('print', this.env.mimetype != 'application/pdf' \|\| !bw.mz \|\| bw.vendver >= 75);

	if (this.env.is_message) {
	this.enable_command('reply', 'reply-all', 'edit', 'viewsource',
	'forward', 'forward-inline', 'forward-attachment', 'bounce', true);
	if (this.env.list_post)
	this.enable_command('reply-list', true);
	}

	// center and scale the image in preview frame
	// TODO: Find a better way. Onload is late, also we could use embed.css
	if (this.env.mimetype.startsWith('image/'))
	$(this.gui_objects.messagepartframe).on('load', function() {
	var contents = $(this).contents();

	// do not apply styles to an error page (with no image)
	if (contents.find('img').length)
	contents.find('head').append(
	'<style type="text/css">'
	+ 'img { max-width:100%; max-height:100%; } ' // scale
	+ 'body { display:flex; align-items:center; justify-content:center; height:100%; margin:0; }' // align
	+ '</style>'
	);
	});
	}
	// show printing dialog unless decryption must be done first
	else if (this.env.action == 'print' && this.env.uid) {
	this.check_mailvelope(this.env.action);
	if (!this.env.is_pgp_content && !this.env.pgp_mime_part) {
	this.print_dialog();
	}
	}

	// get unread count for each mailbox
	if (this.gui_objects.mailboxlist) {
	this.env.unread_counts = {};
	this.gui_objects.folderlist = this.gui_objects.mailboxlist;
	this.http_request('getunread', {_page: this.env.current_page});
	}

	// init address book widget
	if (this.gui_objects.contactslist) {
	this.contact_list = new rcube_list_widget(this.gui_objects.contactslist,
	{ multiselect:true, draggable:false, keyboard:true });
	this.contact_list
	.addEventListener('initrow', function(o) { ref.triggerEvent('insertrow', { cid:o.uid, row:o }); })
	.addEventListener('select', function(o) { ref.compose_recipient_select(o); })
	.addEventListener('dblclick', function(o) { ref.compose_add_recipient(); })
	.addEventListener('keypress', function(o) {
	if (o.key_pressed == o.ENTER_KEY) {
	if (!ref.compose_add_recipient()) {
	// execute link action on <enter> if not a recipient entry
	if (o.last_selected && String(o.last_selected).charAt(0) == 'G') {
	$(o.rows[o.last_selected].obj).find('a').first().click();
	}
	}
	}
	})
	.init();

	// remember last focused address field
	$('#_to,#_cc,#_bcc').focus(function() { ref.env.focused_field = this; });
	}

	if (this.gui_objects.addressbookslist) {
	this.gui_objects.folderlist = this.gui_objects.addressbookslist;
	this.enable_command('list-addresses', true);
	}

	// ask user to send MDN
	if (this.env.mdn_request && this.env.uid) {
	this.mdn_request_dialog(this.env.uid, this.env.mailbox);
	}

	// detect browser capabilities
	if (!this.is_framed() && !this.env.extwin)
	this.browser_capabilities_check();

	break;

	case 'addressbook':
	this.env.address_group_stack = [];

	if (this.gui_objects.folderlist)
	this.env.contactfolders = $.extend($.extend({}, this.env.address_sources), this.env.contactgroups);

	this.enable_command('add', 'import', this.env.writable_source);
	this.enable_command('list', 'listgroup', 'pushgroup', 'popgroup', 'listsearch', 'search', 'reset-search', 'advanced-search', true);

	if (this.gui_objects.contactslist) {
	this.contact_list = new rcube_list_widget(this.gui_objects.contactslist,
	{multiselect:true, draggable:this.gui_objects.folderlist?true:false, keyboard:true});
	this.contact_list
	.addEventListener('initrow', function(o) { ref.triggerEvent('insertrow', { cid:o.uid, row:o }); })
	.addEventListener('keypress', function(o) { ref.list_keypress(o); })
	.addEventListener('select', function(o) { ref.contactlist_select(o); })
	.addEventListener('dragstart', function(o) { ref.drag_start(o); })
	.addEventListener('dragmove', function(e) { ref.drag_move(e); })
	.addEventListener('dragend', function(e) { ref.drag_end(e); })
	.init();

	$(this.gui_objects.qsearchbox).focusin(function() { ref.contact_list.blur(); });

	this.update_group_commands();
	this.command('list');
	}

	if (this.gui_objects.savedsearchlist) {
	this.savedsearchlist = new rcube_treelist_widget(this.gui_objects.savedsearchlist, {
	id_prefix: 'rcmli',
	id_encode: this.html_identifier_encode,
	id_decode: this.html_identifier_decode
	});

	this.savedsearchlist.addEventListener('select', function(node) {
	ref.triggerEvent('selectfolder', { folder:node.id, prefix:'rcmli' }); });
	}

	this.set_page_buttons();

	if (this.env.cid) {
	this.enable_command('show', 'edit', 'qrcode', true);
	// register handlers for group assignment via checkboxes
	if (this.gui_objects.editform) {
	$('input.groupmember').change(function() {
	ref.group_member_change(this.checked ? 'add' : 'del', ref.env.cid, ref.env.source, this.value);
	});
	}
	}

	if (this.gui_objects.editform) {
	this.enable_command('save', true);
	if (this.env.action == 'add' \|\| this.env.action == 'edit' \|\| this.env.action == 'search')
	this.init_contact_form();
	}
	else if (this.env.action == 'print') {
	this.print_dialog();
	}

	break;

	case 'settings':
	this.enable_command('show', 'save', true);

	if (this.env.action == 'identities') {
	this.enable_command('add', this.env.identities_level < 2);
	}
	else if (this.env.action == 'edit-identity' \|\| this.env.action == 'add-identity') {
	this.enable_command('save', 'edit', 'toggle-editor', true);
	this.enable_command('delete', this.env.identities_level < 2);

	// initialize HTML editor
	this.editor_init(this.env.editor_config, 'rcmfd_signature');

	if (this.env.action == 'edit-identity') {
	this.check_mailvelope(this.env.action);
	}
	}
	else if (this.env.action == 'folders') {
	this.enable_command('subscribe', 'unsubscribe', 'create-folder', 'rename-folder', true);
	}
	else if (this.env.action == 'edit-folder' && this.gui_objects.editform) {
	this.enable_command('save', 'folder-size', true);
	parent.rcmail.env.exists = this.env.messagecount;
	parent.rcmail.enable_command('purge', this.env.messagecount);
	}
	else if (this.env.action == 'responses') {
	this.enable_command('add', true);
	}

	if (this.gui_objects.identitieslist) {
	this.identity_list = new rcube_list_widget(this.gui_objects.identitieslist,
	{multiselect:false, draggable:false, keyboard:true});
	this.identity_list
	.addEventListener('select', function(o) { ref.identity_select(o); })
	.addEventListener('keypress', function(o) { ref.list_keypress(o); })
	.init()
	.focus();
	}
	else if (this.gui_objects.sectionslist) {
	this.sections_list = new rcube_list_widget(this.gui_objects.sectionslist, {multiselect:false, draggable:false, keyboard:true});
	this.sections_list
	.addEventListener('select', function(o) { ref.section_select(o); })
	.init()
	.focus();
	}
	else if (this.gui_objects.subscriptionlist) {
	this.init_subscription_list();
	}
	else if (this.gui_objects.responseslist) {
	this.responses_list = new rcube_list_widget(this.gui_objects.responseslist, {multiselect:false, draggable:false, keyboard:true});
	this.responses_list
	.addEventListener('select', function(o) { ref.response_select(o); })
	.addEventListener('keypress', function(o) { ref.list_keypress(o); })
	.init()
	.focus();
	}

	break;

	case 'login':
	var tz, tz_name,
	input_user = $('#rcmloginuser'),
	input_tz = $('#rcmlogintz');

	if (input_user.val() == '')
	input_user.focus();
	else
	$('#rcmloginpwd').focus();

	// detect client timezone
	if (window.jstz && (tz = jstz.determine()))
	tz_name = tz.name();

	input_tz.val(tz_name ? tz_name : (new Date().getStdTimezoneOffset() / -60));

	// display 'loading' message on form submit, lock submit button
	$('form').submit(function () {
	$('[type=submit]', this).prop('disabled', true);
	ref.clear_messages();
	ref.display_message('', 'loading');
	});

	break;
	}

	// select first input field in an edit form
	if (this.gui_objects.editform)
	$("input,select,textarea", this.gui_objects.editform)
	.not(':hidden').not(':disabled').first().select().focus();

	// prevent from form submit with Enter key in file input fields
	if (bw.ie)
	$('input[type=file]').keydown(function(e) { if (e.keyCode == '13') e.preventDefault(); });

	// flag object as complete
	this.loaded = true;
	this.env.lastrefresh = new Date();

	// show message
	if (this.pending_message)
	this.display_message.apply(this, this.pending_message);

	// init treelist widget
	if (this.gui_objects.folderlist && window.rcube_treelist_widget
	// some plugins may load rcube_treelist_widget and there's one case
	// when this will cause problems - addressbook widget in compose,
	// which already has been initialized using rcube_list_widget
	&& this.gui_objects.folderlist != this.gui_objects.addressbookslist
	) {
	this.treelist = new rcube_treelist_widget(this.gui_objects.folderlist, {
	selectable: true,
	id_prefix: 'rcmli',
	parent_focus: true,
	id_encode: this.html_identifier_encode,
	id_decode: this.html_identifier_decode,
	check_droptarget: function(node) { return !node.virtual && ref.check_droptarget(node.id) }
	});

	this.treelist
	.addEventListener('collapse', function(node) { ref.folder_collapsed(node) })
	.addEventListener('expand', function(node) { ref.folder_collapsed(node) })
	.addEventListener('beforeselect', function(node) { return !ref.busy; })
	.addEventListener('select', function(node) {
	ref.triggerEvent('selectfolder', { folder:node.id, prefix:'rcmli' });
	ref.mark_all_read_state();
	});
	}

	// activate html5 file drop feature (if browser supports it and if configured)
	if (this.gui_objects.filedrop && this.env.filedrop && window.FormData) {
	$(document.body).on('dragover dragleave drop', function(e) { return ref.document_drag_hover(e, e.type == 'dragover'); });
	$(this.gui_objects.filedrop).addClass('droptarget')
	.on('dragover dragleave', function(e) { return ref.file_drag_hover(e, e.type == 'dragover'); })
	.get(0).addEventListener('drop', function(e) { return ref.file_dropped(e); }, false);
	}

	// catch document (and iframe) mouse clicks
	var body_mouseup = function(e) { return ref.doc_mouse_up(e); };
	$(document.body)
	.mouseup(body_mouseup)
	.keydown(function(e) { return ref.doc_keypress(e); });

	rcube_webmail.set_iframe_events({mouseup: body_mouseup});

	// trigger init event hook
	this.triggerEvent('init', { task:this.task, action:this.env.action });

	// execute all foreign onload scripts
	// @deprecated
	for (n in this.onloads) {
	if (typeof this.onloads[n] === 'string')
	eval(this.onloads[n]);
	else if (typeof this.onloads[n] === 'function')
	this.onloads[n]();
	}

	// register menu buttons
	$('[data-popup]').each(function() { ref.register_menu_button(this, $(this).data('popup')); });

	// start keep-alive and refresh intervals
	this.start_refresh();
	this.start_keepalive();
	};

	this.log = function(msg)
	{
	if (this.env.devel_mode && window.console && console.log)
	console.log(msg);
	};

	/*********************************************************/
	/******* client command interface *******/
	/*********************************************************/

	// execute a specific command on the web client
	this.command = function(command, props, obj, event, allow_disabled)
	{
	var ret;

	if (obj && obj.blur && !(event && rcube_event.is_keyboard(event)))
	obj.blur();

	// do nothing if interface is locked by another command
	// with exception for searching reset and menu
	if (this.busy && !(command == 'reset-search' && this.last_command == 'search') && !command.match(/^menu-/))
	return false;

	// let the browser handle this click (shift/ctrl usually opens the link in a new window/tab)
	if ((obj && obj.href && String(obj.href).indexOf('#') < 0) && rcube_event.get_modifier(event)) {
	return true;
	}

	// command not supported or allowed
	if (!allow_disabled && !this.commands[command]) {
	// pass command to parent window
	if (this.is_framed())
	parent.rcmail.command(command, props);

	return false;
	}

	// check input before leaving compose step
	if (this.task == 'mail' && this.env.action == 'compose' && !this.env.server_error && command != 'save-pref'
	&& ($.inArray(command, this.env.compose_commands) < 0 \|\| command.startsWith('compose-encrypted') && ref.mailvelope_editor)
	&& !this.compose_skip_unsavedcheck
	) {
	if (!this.env.is_sent && this.cmp_hash != this.compose_field_hash()) {
	this.confirm_dialog(this.get_label('notsentwarning'), 'discard', function() {
	// remove copy from local storage if compose screen is left intentionally
	ref.remove_compose_data(ref.env.compose_id);
	ref.compose_skip_unsavedcheck = true;
	ref.command(command, props, obj, event);
	});

	return false;
	}
	}

	this.last_command = command;
	this.command_aborted = false;

	// trigger plugin hooks
	this.triggerEvent('actionbefore', {props: props, action: command, originalEvent: event});

	if ((ret = this.triggerEvent('before' + command, props \|\| event)) !== undefined) {
	// abort if one of the handlers returned false
	if (ret === false)
	return false;

	props = ret;
	}

	// process external commands
	if (typeof this.command_handlers[command] === 'function') {
	ret = this.command_handlers[command](props, obj, event);
	}
	else if (typeof this.command_handlers[command] === 'string') {
	ret = window[this.command_handlers[command]](props, obj, event);
	}
	// process internal commands
	else {
	ret = this.command_handler(command, props, obj, event);
	}

	if (!this.command_aborted && this.triggerEvent('after' + command, props) === false)
	ret = false;

	this.triggerEvent('actionafter', {props: props, action: command, aborted: this.command_aborted, ret: ret, originalEvent: event});

	if (ret === false)
	return false;

	if ((obj && ret !== true) \|\| this.command_aborted === true)
	return false;

	return true;
	};

	// execute a specific known command
	this.command_handler = function(command, props, obj, event)
	{
	var uid, cid, url, flag;

	// process internal command
	switch (command) {

	// commands to switch task
	case 'logout':
	case 'mail':
	case 'addressbook':
	case 'settings':
	this.switch_task(command);
	break;

	case 'about':
	this.redirect('?_task=settings&_action=about', false);
	break;

	case 'permaurl':
	if (obj && obj.href && obj.target)
	return true;
	if (this.env.permaurl)
	parent.location.href = this.env.permaurl;
	break;

	case 'extwin':
	if (this.env.action == 'compose') {
	var form = this.gui_objects.messageform,
	win = this.open_window('');

	if (win) {
	this.save_compose_form_local();
	this.compose_skip_unsavedcheck = true;
	$("[name='_action']", form).val('compose');
	form.action = this.url('mail/compose', { _id: this.env.compose_id, _extwin: 1 });
	form.target = win.name;
	form.submit();
	}
	}
	else {
	this.open_window(this.env.permaurl, true);
	}
	break;

	case 'change-format':
	url = this.env.permaurl + '&_format=' + props;

	if (this.env.action == 'preview')
	url = url.replace(/_action=show/, '_action=preview') + '&_framed=1';
	if (this.env.extwin)
	url += '&_extwin=1';

	location.href = url;
	break;

	case 'menu-open':
	if (props && props.menu == 'attachmentmenu') {
	var mimetype = this.env.attachments[props.id];
	if (mimetype && mimetype.mimetype) // in compose format is different
	mimetype = mimetype.mimetype;
	this.enable_command('open-attachment', mimetype && this.env.mimetypes && $.inArray(mimetype, this.env.mimetypes) >= 0);
	}
	this.show_menu(props, props.show \|\| undefined, event);
	break;

	case 'menu-close':
	this.hide_menu(props, event);
	break;

	case 'menu-save':
	this.triggerEvent(command, {props:props, originalEvent:event});
	return false;

	case 'open':
	if (uid = this.get_single_uid()) {
	obj.href = this.url('show', this.params_from_uid(uid, {_extwin: 1}));
	return true;
	}
	break;

	case 'close':
	if (this.env.extwin)
	window.close();
	break;

	case 'list':
	if (props && props != '') {
	this.reset_qsearch(true);
	}
	if (this.env.action == 'compose' && this.env.extwin) {
	window.close();
	}
	else if (this.task == 'mail') {
	this.list_mailbox(props, props ? 1 : '');
	this.set_button_titles();
	}
	else if (this.task == 'addressbook')
	this.list_contacts(props);
	break;

	case 'set-listmode':
	this.set_list_options(null, undefined, undefined, props == 'threads' ? 1 : 0);
	break;

	case 'sort':
	var sort_order = this.env.sort_order,
	sort_col = !this.env.disabled_sort_col ? props : this.env.sort_col;

	if (!this.env.disabled_sort_order)
	sort_order = this.env.sort_col == sort_col && sort_order == 'ASC' ? 'DESC' : 'ASC';

	// set table header and update env
	this.set_list_sorting(sort_col, sort_order);

	// reload message list
	this.list_mailbox('', '', sort_col+'_'+sort_order);
	break;

	case 'nextpage':
	this.list_page('next');
	break;

	case 'lastpage':
	this.list_page('last');
	break;

	case 'previouspage':
	this.list_page('prev');
	break;

	case 'firstpage':
	this.list_page('first');
	break;

	case 'expunge':
	if (this.env.exists)
	this.expunge_mailbox(this.env.mailbox);
	break;

	case 'purge':
	case 'empty-mailbox':
	if (this.env.exists)
	this.purge_mailbox(this.env.mailbox);
	break;

	// common commands used in multiple tasks
	case 'show':
	if (this.task == 'mail') {
	uid = this.get_single_uid();
	if (uid && (!this.env.uid \|\| uid != this.env.uid)) {
	var mbox = this.get_message_mailbox(uid);
	if (mbox == this.env.drafts_mailbox)
	this.open_compose_step({_draft_uid: uid, _mbox: mbox});
	else
	this.show_message(uid);
	}
	}
	else if (this.task == 'addressbook') {
	cid = props ? props : this.get_single_cid();
	if (cid && !(this.env.action == 'show' && cid == this.env.cid))
	this.load_contact(cid, 'show');
	}
	else if (this.task == 'settings') {
	this.goto_url('settings/' + props, {_framed: 0});
	}
	break;

	case 'add':
	if (this.task == 'addressbook')
	this.load_contact(0, 'add');
	else if (this.task == 'settings' && this.env.action == 'responses')
	this.load_response(0, 'add-response');
	else if (this.task == 'settings')
	this.load_identity(0, 'add-identity');
	break;

	case 'edit':
	if (this.task == 'addressbook' && (cid = this.get_single_cid()))
	this.load_contact(cid, 'edit');
	else if (this.task == 'mail' && (uid = this.get_single_uid())) {
	url = { _mbox: this.get_message_mailbox(uid) };
	url[url._mbox == this.env.drafts_mailbox && props != 'new' ? '_draft_uid' : '_uid'] = uid;
	this.open_compose_step(url);
	}
	break;

	case 'save':
	var input, form = this.gui_objects.editform;
	if (form) {
	// user prefs
	if ((input = $("[name='_pagesize']", form)) && input.length && isNaN(parseInt(input.val()))) {
	this.alert_dialog(this.get_label('nopagesizewarning'), function() {
	input.focus();
	});
	break;
	}
	// contacts/identities
	else {
	// reload form
	if (props == 'reload') {
	form.action += '&_reload=1';
	}
	else if (this.task == 'settings' && (this.env.identities_level % 2) == 0 &&
	(input = $("[name='_email']", form)) && input.length && !rcube_check_email(input.val())
	) {
	this.alert_dialog(this.get_label('noemailwarning'), function() {
	input.focus();
	});
	break;
	}
	}

	// add selected source (on the list)
	if (parent.rcmail && parent.rcmail.env.source)
	form.action = this.add_url(form.action, '_orig_source', parent.rcmail.env.source);

	form.submit();
	}
	break;

	case 'delete':
	// mail task
	if (this.task == 'mail')
	this.delete_messages(event);
	// addressbook task
	else if (this.task == 'addressbook')
	this.delete_contacts();
	// settings: canned response
	else if (this.task == 'settings' && this.env.action == 'responses')
	this.delete_response();
	// settings: user identities
	else if (this.task == 'settings')
	this.delete_identity();
	break;

	// mail task commands
	case 'move':
	case 'moveto': // deprecated
	if (this.task == 'mail')
	this.move_messages(props, event);
	else if (this.task == 'addressbook')
	this.move_contacts(props, event);
	break;

	case 'copy':
	if (this.task == 'mail')
	this.copy_messages(props, event);
	else if (this.task == 'addressbook')
	this.copy_contacts(props, event);
	break;

	case 'mark':
	if (props)
	this.mark_message(props);
	break;

	case 'toggle_status':
	case 'toggle_flag':
	flag = command == 'toggle_flag' ? 'flagged' : 'read';

	if (uid = props) {
	// toggle flagged/unflagged
	if (flag == 'flagged') {
	if (this.message_list.rows[uid].flagged)
	flag = 'unflagged';
	}
	// toggle read/unread
	else if (this.message_list.rows[uid].deleted)
	flag = 'undelete';
	else if (!this.message_list.rows[uid].unread)
	flag = 'unread';

	this.mark_message(flag, uid);
	}

	break;

	case 'add-contact':
	this.add_contact(props);
	break;

	case 'load-remote':
	if (this.env.uid) {
	if (props && this.env.sender) {
	this.add_contact(this.env.sender, true);
	break;
	}

	this.show_message(this.env.uid, true, this.env.action == 'preview');
	}
	break;

	case 'load-attachment':
	case 'open-attachment':
	case 'download-attachment':
	var params, mimetype = this.env.attachments[props];

	if (this.env.action == 'compose') {
	params = {_file: props, _id: this.env.compose_id};
	mimetype = mimetype ? mimetype.mimetype : '';
	}
	else {
	params = {_mbox: this.env.mailbox, _uid: this.env.uid, _part: props};
	}

	// open attachment in frame if it's of a supported mimetype
	if (command != 'download-attachment' && mimetype && this.env.mimetypes && $.inArray(mimetype, this.env.mimetypes) >= 0) {
	// Note: We disable _framed for proper X-Frame-Options:deny support (#6688)
	if (this.open_window(this.url('get', $.extend({_frame: 1, _framed: 0}, params))))
	break;
	}

	params._download = 1;

	// prevent from page unload warning in compose
	this.compose_skip_unsavedcheck = 1;
	this.goto_url('get', params, false, true);
	this.compose_skip_unsavedcheck = 0;

	break;

	case 'select-all':
	this.select_all_mode = props ? false : true;
	this.dummy_select = true; // prevent msg opening if there's only one msg on the list
	var list = this[this.task == 'addressbook' ? 'contact_list' : 'message_list'];
	if (props == 'invert')
	list.invert_selection();
	else
	list.select_all(props == 'page' ? '' : props);
	this.dummy_select = null;
	break;

	case 'select-none':
	this.select_all_mode = false;
	this[this.task == 'addressbook' ? 'contact_list' : 'message_list'].clear_selection();
	break;

	case 'expand-all':
	this.env.autoexpand_threads = 1;
	this.message_list.expand_all();
	break;

	case 'expand-unread':
	this.env.autoexpand_threads = 2;
	this.message_list.collapse_all();
	this.expand_unread();
	break;

	case 'collapse-all':
	this.env.autoexpand_threads = 0;
	this.message_list.collapse_all();
	break;

	case 'nextmessage':
	if (this.env.next_uid)
	this.show_message(this.env.next_uid, false, this.env.action == 'preview');
	break;

	case 'lastmessage':
	if (this.env.last_uid)
	this.show_message(this.env.last_uid);
	break;

	case 'previousmessage':
	if (this.env.prev_uid)
	this.show_message(this.env.prev_uid, false, this.env.action == 'preview');
	break;

	case 'firstmessage':
	if (this.env.first_uid)
	this.show_message(this.env.first_uid);
	break;

	case 'compose':
	url = {};

	if (this.task == 'mail') {
	url = {_mbox: this.env.mailbox, _search: this.env.search_request};
	if (props)
	url._to = props;
	}
	// modify url if we're in addressbook
	else if (this.task == 'addressbook') {
	// switch to mail compose step directly
	if (props && props.indexOf('@') > 0) {
	url._to = props;
	}
	else {
	var a_cids = [];
	// use contact id passed as command parameter
	if (props)
	a_cids.push(props);
	// get selected contacts
	else if (this.contact_list)
	a_cids = this.contact_list.get_selection();

	if (a_cids.length) {
	this.http_post('mailto', { _cid: a_cids.join(','), _source: this.env.source }, true);
	break;
	}
	else if (this.env.group && this.env.pagecount) {
	this.http_post('mailto', { _gid: this.env.group, _source: this.env.source }, true);
	break;
	}
	}
	}
	else if (props && typeof props == 'string') {
	url._to = props;
	}
	else if (props && typeof props == 'object') {
	$.extend(url, props);
	}

	this.open_compose_step(url);
	break;

	case 'spellcheck':
	if (this.spellcheck_state()) {
	this.editor.spellcheck_stop();
	}
	else {
	this.editor.spellcheck_start();
	}
	break;

	case 'savedraft':
	// Reset the auto-save timer
	clearTimeout(this.save_timer);

	// compose form did not change (and draft wasn't saved already)
	if (this.env.draft_id && this.cmp_hash == this.compose_field_hash()) {
	this.auto_save_start();
	break;
	}

	this.submit_messageform(true);
	break;

	case 'send':
	if (!props.nocheck && !this.env.is_sent && !this.check_compose_input(command))
	break;

	// Reset the auto-save timer
	clearTimeout(this.save_timer);

	this.submit_messageform();
	break;

	case 'send-attachment':
	// Reset the auto-save timer
	clearTimeout(this.save_timer);

	if (!(flag = this.upload_file(props \|\| this.gui_objects.uploadform, 'upload'))) {
	if (flag !== false)
	this.alert_dialog(this.get_label('selectimportfile'));
	aborted = true;
	}
	break;

	case 'insert-sig':
	this.change_identity($("[name='_from']")[0], true);
	break;

	case 'list-addresses':
	this.list_contacts(props);
	this.enable_command('add-recipient', false);
	break;

	case 'add-recipient':
	this.compose_add_recipient(props);
	break;

	case 'reply-all':
	case 'reply-list':
	case 'reply':
	if (uid = this.get_single_uid()) {
	url = {_reply_uid: uid, _mbox: this.get_message_mailbox(uid), _search: this.env.search_request};
	if (command == 'reply-all')
	// do reply-list, when list is detected and popup menu wasn't used
	url._all = (!props && this.env.reply_all_mode == 1 && this.commands['reply-list'] ? 'list' : 'all');
	else if (command == 'reply-list')
	url._all = 'list';

	this.open_compose_step(url);
	}
	break;

	case 'forward-attachment':
	case 'forward-inline':
	case 'forward':
	var uids = this.env.uid ? [this.env.uid] : (this.message_list ? this.message_list.get_selection() : []);
	if (uids.length) {
	url = { _forward_uid: this.uids_to_list(uids), _mbox: this.env.mailbox, _search: this.env.search_request };
	if (command == 'forward-attachment' \|\| (!props && this.env.forward_attachment) \|\| uids.length > 1)
	url._attachment = 1;
	this.open_compose_step(url);
	}
	break;

	case 'print':
	if (this.task == 'addressbook') {
	if (uid = this.get_single_cid()) {
	url = '&_action=print&_cid=' + uid;
	if (this.env.source)
	url += '&_source=' + urlencode(this.env.source);
	this.open_window(this.env.comm_path + url, true, true);
	}
	}
	else if (this.env.action == 'get' && !this.env.is_message) {
	this.gui_objects.messagepartframe.contentWindow.print();
	}
	else if (uid = this.get_single_uid()) {
	url = this.url('print', this.params_from_uid(uid, {_safe: this.env.safemode ? 1 : 0}));
	if (this.open_window(url, true, true)) {
	if (this.env.action != 'show' && this.env.action != 'get')
	this.mark_message('read', uid);
	}
	}
	break;

	case 'viewsource':
	if (uid = this.get_single_uid())
	this.open_window(this.url('viewsource', this.params_from_uid(uid)), true, true);
	break;

	case 'download':
	if (this.env.action == 'get') {
	location.href = this.secure_url(location.href.replace(/_frame=/, '_download='));
	}
	else if (uid = this.get_single_uid()) {
	this.goto_url('viewsource', this.params_from_uid(uid, {_save: 1}), false, true);
	}
	break;

	// quicksearch
	case 'search':
	return this.qsearch(props);

	// reset quicksearch
	case 'reset-search':
	var n, s = this.env.search_request \|\| this.env.qsearch;

	this.reset_qsearch(true);

	if (s && this.env.action == 'compose') {
	if (this.contact_list)
	this.list_contacts_clear();
	}
	else if (s && this.env.mailbox) {
	this.list_mailbox(this.env.mailbox, 1);
	}
	else if (s && this.task == 'addressbook') {
	if (this.env.source == '') {
	for (n in this.env.address_sources) break;
	this.env.source = n;
	this.env.group = '';
	}
	this.list_contacts(this.env.source, this.env.group, 1);
	}
	break;

	case 'pushgroup':
	// add group ID and current search to stack
	var group = {
	id: props.id,
	search_request: this.env.search_request,
	page: this.env.current_page,
	search: this.env.search_request && this.gui_objects.qsearchbox ? this.gui_objects.qsearchbox.value : null
	};

	this.env.address_group_stack.push(group);
	if (obj && event)
	rcube_event.cancel(event);

	// FIXME: no break?

	case 'listgroup':
	this.reset_qsearch();
	this.list_contacts(props.source, props.id, 1, group);
	break;

	case 'popgroup':
	if (this.env.address_group_stack.length) {
	var old = this.env.address_group_stack.pop();
	this.reset_qsearch();

	if (old.search_request) {
	// this code is executed when going back to the search result
	if (old.search && this.gui_objects.qsearchbox)
	$(this.gui_objects.qsearchbox).val(old.search);
	this.env.search_request = old.search_request;
	this.list_contacts_remote(null, null, this.env.current_page = old.page);
	}
	else
	this.list_contacts(props.source, this.env.address_group_stack[this.env.address_group_stack.length-1].id);
	}
	break;

	case 'import-messages':
	var form = props \|\| this.gui_objects.importform,
	importlock = this.set_busy(true, 'importwait');

	if (!(flag = this.upload_file(form, 'import', importlock))) {
	this.set_busy(false, null, importlock);
	if (flag !== false)
	this.alert_dialog(this.get_label('selectimportfile'));
	this.command_aborted = true;
	}
	break;

	case 'import':
	var dialog = $('<iframe>').attr('src', this.url('import', {_framed: 1, _target: this.env.source})),
	import_func = function(e) {
	var win = dialog[0].contentWindow,
	form = null;

	if (win.rcmail.gui_objects.importformmap)
	form = win.rcmail.gui_objects.importformmap;
	else
	form = win.rcmail.gui_objects.importform;

	if (form) {
	var lock, file = win.$('#rcmimportfile')[0];
	if (file && !file.value) {
	win.rcmail.alert_dialog(win.rcmail.get_label('selectimportfile'));
	return;
	}

	lock = win.rcmail.set_busy(true, 'importwait');
	$('[name="_unlock"]', form).val(lock);
	form.submit();
	win.rcmail.lock_form(form, true);
	// disable Import button
	$(e.target).attr('disabled', true).next().focus();
	}
	},
	close_func = function(event, ui) {
	$(this).remove();
	if (ref.import_state == 'reload')
	ref.command('list');
	};

	this.import_state = null;
	this.import_dialog = this.simple_dialog(dialog, this.gettext('importcontacts'), import_func, {
	close: close_func,
	button: 'import',
	width: 500,
	height: 300
	});

	break;

	case 'export':
	if (this.contact_list.rowcount > 0) {
	this.goto_url('export', { _source: this.env.source, _gid: this.env.group, _search: this.env.search_request }, false, true);
	}
	break;

	case 'export-selected':
	if (this.contact_list.rowcount > 0) {
	this.goto_url('export', { _source: this.env.source, _gid: this.env.group, _cid: this.contact_list.get_selection().join(',') }, false, true);
	}
	break;

	case 'upload-photo':
	this.upload_contact_photo(props \|\| this.gui_objects.uploadform);
	break;

	case 'delete-photo':
	this.replace_contact_photo('-del-');
	break;

	case 'undo':
	this.http_request('undo', '', this.display_message('', 'loading'));
	break;

	// unified command call (command name == function name)
	default:
	var func = command.replace(/-/g, '_');
	if (this[func] && typeof this[func] === 'function') {
	return this[func](props, obj, event);
	}
	}
	};

	// set command(s) enabled or disabled
	this.enable_command = function()
	{
	var i, n, args = Array.prototype.slice.call(arguments),
	enable = args.pop(), cmd;

	for (n=0; n<args.length; n++) {
	cmd = args[n];
	// argument of type array
	if (typeof cmd === 'string') {
	this.commands[cmd] = enable;
	this.set_button(cmd, (enable ? 'act' : 'pas'));
	this.triggerEvent('enable-command', {command: cmd, status: enable});
	}
	// push array elements into commands array
	else {
	for (i in cmd)
	args.push(cmd[i]);
	}
	}

	this.set_menu_buttons();
	};

	this.command_enabled = function(cmd)
	{
	return this.commands[cmd];
	};

	// lock/unlock interface
	this.set_busy = function(a, message, id)
	{
	if (a && message) {
	var msg = this.get_label(message);
	if (msg == message)
	msg = 'Loading...';

	id = this.display_message(msg, 'loading');
	}
	else if (!a && id) {
	this.hide_message(id);
	}

	this.busy = a;

	if (this.gui_objects.editform)
	this.lock_form(this.gui_objects.editform, a);

	return id;
	};

	// return a localized string
	this.get_label = function(name, domain)
	{
	if (domain && this.labels[domain+'.'+name])
	return this.labels[domain+'.'+name];
	else if (this.labels[name])
	return this.labels[name];
	else
	return name;
	};

	// alias for convenience reasons
	this.gettext = this.get_label;

	// switch to another application task
	this.switch_task = function(task)
	{
	var action, path;

	if ((path = task.split('/')).length == 2) {
	task = path[0];
	action = path[1];
	}

	if (this.task === task && task != 'mail')
	return;

	var url = this.get_task_url(task);

	if (action)
	url += '&_action=' + action;

	if (task == 'mail')
	url += '&_mbox=INBOX';
	else if (task == 'logout') {
	url = this.secure_url(url);
	this.clear_compose_data();
	}

	this.redirect(url);
	};

	this.get_task_url = function(task, url)
	{
	if (!url)
	url = this.env.comm_path;

	if (url.match(/[?&]_task=[a-zA-Z0-9_-]+/))
	return url.replace(/_task=[a-zA-Z0-9_-]+/, '_task=' + task);
	else
	return url.replace(/\?.*$/, '') + '?_task=' + task;
	};

	this.reload = function(delay)
	{
	if (this.is_framed())
	parent.rcmail.reload(delay);
	else if (delay)
	setTimeout(function() { ref.reload(); }, delay);
	else if (window.location)
	location.href = this.url('', {_extwin: this.env.extwin});
	};

	// Add variable to GET string, replace old value if exists
	this.add_url = function(url, name, value)
	{
	var urldata, datax, hash = '';

	value = urlencode(value);

	if (/(#[a-z0-9_-]+)$/.test(url)) {
	hash = RegExp.$1;
	url = url.substr(0, url.length - hash.length);
	}

	if (/(\?.*)$/.test(url)) {
	urldata = RegExp.$1;
	datax = RegExp('((\\?\|&)'+RegExp.escape(name)+'=[^&]*)');

	if (datax.test(urldata))
	urldata = urldata.replace(datax, RegExp.$2 + name + '=' + value);
	else
	urldata += '&' + name + '=' + value;

	return url.replace(/(\?.*)$/, urldata) + hash;
	}

	return url + '?' + name + '=' + value + hash;
	};

	// append CSRF protection token to the given url
	this.secure_url = function(url)
	{
	return this.add_url(url, '_token', this.env.request_token);
	},

	this.is_framed = function()
	{
	return this.env.framed && parent.rcmail && parent.rcmail != this && typeof parent.rcmail.command == 'function';
	};

	this.save_pref = function(prop)
	{
	var request = {_name: prop.name, _value: prop.value};

	if (prop.session)
	request._session = prop.session;
	if (prop.env)
	this.env[prop.env] = prop.value;

	this.http_post('save-pref', request);
	};

	this.html_identifier = function(str, encode)
	{
	return encode ? this.html_identifier_encode(str) : String(str).replace(this.identifier_expr, '_');
	};

	this.html_identifier_encode = function(str)
	{
	return Base64.encode(String(str)).replace(/=+$/, '').replace(/\+/g, '-').replace(/\//g, '_');
	};

	this.html_identifier_decode = function(str)
	{
	str = String(str).replace(/-/g, '+').replace(/_/g, '/');

	while (str.length % 4) str += '=';

	return Base64.decode(str);
	};


	/*********************************************************/
	/******* event handling methods *******/
	/*********************************************************/

	this.drag_menu = function(e, target)
	{
	var modkey = rcube_event.get_modifier(e),
	menu = this.gui_objects.dragmenu;

	if (menu && modkey == SHIFT_KEY && this.commands['copy']) {
	var pos = rcube_event.get_mouse_pos(e);
	this.env.drag_target = target;
	this.show_menu(this.gui_objects.dragmenu.id, true, e);
	$(menu).css({top: (pos.y-10)+'px', left: (pos.x-10)+'px'});
	return true;
	}

	return false;
	};

	this.drag_menu_action = function(action)
	{
	var menu = this.gui_objects.dragmenu;
	if (menu) {
	$(menu).hide();
	}

	this.command(action, this.env.drag_target);
	this.env.drag_target = null;
	};

	this.drag_start = function(list)
	{
	this.drag_active = true;

	if (this.preview_timer)
	clearTimeout(this.preview_timer);

	// prepare treelist widget for dragging interactions
	if (this.treelist)
	this.treelist.drag_start();
	};

	this.drag_end = function(e)
	{
	var list, model;

	if (this.treelist)
	this.treelist.drag_end();

	// execute drag & drop action when mouse was released
	if (list = this.message_list)
	model = this.env.mailboxes;
	else if (list = this.contact_list)
	model = this.env.contactfolders;

	// Note: we accept only mouse events to ignore dragging aborts with ESC key (#6623)
	if (this.drag_active && model && this.env.last_folder_target && !rcube_event.is_keyboard(e)) {
	var target = model[this.env.last_folder_target];
	list.draglayer.hide();

	if (this.contact_list) {
	if (!this.contacts_drag_menu(e, target))
	this.command('move', target);
	}
	else if (!this.drag_menu(e, target))
	this.command('move', target);
	}

	this.drag_active = false;
	this.env.last_folder_target = null;
	};

	this.drag_move = function(e)
	{
	if (this.gui_objects.folderlist) {
	var drag_target, oldclass,
	layerclass = 'draglayernormal',
	mouse = rcube_event.get_mouse_pos(e);

	if (this.contact_list && this.contact_list.draglayer)
	oldclass = this.contact_list.draglayer.attr('class');

	// mouse intersects a valid drop target on the treelist
	if (this.treelist && (drag_target = this.treelist.intersects(mouse, true))) {
	this.env.last_folder_target = drag_target;
	layerclass = 'draglayer' + (this.check_droptarget(drag_target) > 1 ? 'copy' : 'normal');
	}
	else {
	// Clear target, otherwise drag end will trigger move into last valid droptarget
	this.env.last_folder_target = null;
	}

	if (layerclass != oldclass && this.contact_list && this.contact_list.draglayer)
	this.contact_list.draglayer.attr('class', layerclass);
	}
	};

	this.collapse_folder = function(name)
	{
	if (this.treelist)
	this.treelist.toggle(name);
	};

	this.folder_collapsed = function(node)
	{
	if (this.folder_collapsed_timer)
	clearTimeout(this.folder_collapsed_timer);

	var prefname = this.env.task == 'addressbook' ? 'collapsed_abooks' : 'collapsed_folders',
	old = this.env[prefname];

	if (node.collapsed) {
	this.env[prefname] = this.env[prefname] + '&'+urlencode(node.id)+'&';

	// select the folder if one of its children is currently selected
	// don't select if it's virtual (#1488346)
	if (!node.virtual && this.env.mailbox && this.env.mailbox.startsWith(node.id + this.env.delimiter))
	this.command('list', node.id);
	}
	else {
	var reg = new RegExp('&'+urlencode(node.id)+'&');
	this.env[prefname] = this.env[prefname].replace(reg, '');
	}

	if (!this.drag_active) {
	if (old !== this.env[prefname])
	this.folder_collapsed_timer = setTimeout(function() { ref.command('save-pref', { name: prefname, value: ref.env[prefname] }); }, 10);

	if (this.env.unread_counts)
	this.set_unread_count_display(node.id, false);
	}
	};

	// global mouse-click handler to cleanup some UI elements
	this.doc_mouse_up = function(e)
	{
	var list, id, target = rcube_event.get_target(e);

	// ignore event if jquery UI dialog is open
	if ($(target).closest('.ui-dialog, .ui-widget-overlay').length)
	return;

	// remove focus from list widgets
	if (window.rcube_list_widget && rcube_list_widget._instances.length) {
	$.each(rcube_list_widget._instances, function(i,list) {
	if (list && !rcube_mouse_is_over(e, list.list.parentNode))
	list.blur();
	});
	}

	// reset 'pressed' buttons
	if (this.buttons_sel) {
	for (id in this.buttons_sel)
	if (typeof id !== 'function')
	this.button_out(this.buttons_sel[id], id);
	this.buttons_sel = {};
	}

	// reset popup menus; delayed to have updated menu_stack data
	setTimeout(function(e) {
	var obj, skip, config, id, i, parents = $(target).parents();
	for (i = ref.menu_stack.length - 1; i >= 0; i--) {
	id = ref.menu_stack[i];
	obj = $('#' + id);

	if (obj.is(':visible')
	&& target != obj.data('opener')
	&& target != obj.get(0) // check if scroll bar was clicked (#1489832)
	&& !parents.is(obj.data('opener'))
	&& id != skip
	&& (obj.attr('data-editable') != 'true' \|\| !$(target).parents('#' + id).length)
	&& (obj.attr('data-sticky') != 'true' \|\| !rcube_mouse_is_over(e, obj.get(0)))
	) {
	ref.hide_menu(id, e);
	}
	skip = obj.data('parent');
	}
	}, 10, e);
	};

	// global keypress event handler
	this.doc_keypress = function(e)
	{
	// Helper method to move focus to the next/prev active menu item
	var focus_menu_item = function(dir) {
	var obj, item, mod = dir < 0 ? 'prevAll' : 'nextAll', limit = dir < 0 ? 'last' : 'first';
	if (ref.focused_menu && (obj = $('#'+ref.focused_menu))) {
	item = obj.find(':focus').closest('li')[mod]().has(':not([aria-disabled=true])').find('a,input')[limit]();
	if (!item.length)
	item = obj.find(':focus').closest('ul')[mod]().has(':not([aria-disabled=true])').find('a,input')[limit]();
	return item.focus().length;
	}

	return 0;
	};

	var target = e.target \|\| {},
	keyCode = rcube_event.get_keycode(e);

	if (e.keyCode != 27 && (!this.menu_keyboard_active \|\| target.nodeName == 'TEXTAREA' \|\| target.nodeName == 'SELECT')) {
	return true;
	}

	switch (keyCode) {
	case 38:
	case 40:
	case 63232: // "up", in safari keypress
	case 63233: // "down", in safari keypress
	focus_menu_item(keyCode == 38 \|\| keyCode == 63232 ? -1 : 1);
	return rcube_event.cancel(e);

	case 9: // tab
	if (this.focused_menu) {
	var mod = rcube_event.get_modifier(e);
	if (!focus_menu_item(mod == SHIFT_KEY ? -1 : 1)) {
	this.hide_menu(this.focused_menu, e);
	}
	}
	return rcube_event.cancel(e);

	case 27: // esc
	if (this.menu_stack.length)
	this.hide_menu(this.menu_stack[this.menu_stack.length-1], e);
	break;
	}

	return true;
	}

	// Common handler for a keypress event on a list widget
	this.list_keypress = function(list, conf)
	{
	if (list.modkey == CONTROL_KEY)
	return;

	if (list.key_pressed == list.DELETE_KEY \|\| list.key_pressed == list.BACKSPACE_KEY)
	this.command(conf && conf.del ? conf.del : 'delete');
	else if (list.key_pressed == 33)
	this.command(conf && conf.prev ? conf.prev : 'previouspage');
	else if (list.key_pressed == 34)
	this.command(conf && conf.next ? conf.next : 'nextpage');
	};

	// Handler for a keypress event on a messages list widget
	this.msglist_keypress = function(list)
	{
	// On Enter open the message in list layout mode (no preview frame)
	if (list.key_pressed == list.ENTER_KEY && !this.env.contentframe)
	this.command('show');
	else
	this.list_keypress(list);
	};

	this.msglist_select = function(list)
	{
	if (this.preview_timer)
	clearTimeout(this.preview_timer);

	var isDraft = false,
	selected = list.get_single_selection(),
	selection = list.get_selection(false),
	selected_count = selection.length;

	this.enable_command(this.env.message_commands, selected != null);

	// Find out whether any of the selected messages comes from the Drafts folder
	if (selected_count > 0) {
	if (!this.env.multifolder_listing) {
	isDraft = this.env.mailbox == this.env.drafts_mailbox
	}
	else {
	$.each(selection, function(i, v) {
	if (ref.get_message_mailbox(v) == ref.env.drafts_mailbox) {
	isDraft = true;
	return false;
	}
	});
	}
	}

	// Disable some actions enabled above
	if (selected) {
	if (isDraft) {
	this.enable_command('reply', 'reply-all', 'reply-list', 'forward', 'forward-inline',
	'forward-attachment', 'bounce', false);
	}
	else {
	var msg = this.env.messages[selected];
	if (!msg.ml)
	this.enable_command('reply-list', false);
	}
	}

	// Multi-message commands
	this.enable_command('delete', 'move', 'copy', 'mark', selected_count > 0);
	this.enable_command('forward', 'forward-attachment', !isDraft && selected_count > 0);

	// reset all-pages-selection
	if (selected \|\| (selected_count && selected_count != list.rowcount))
	this.select_all_mode = false;

	// start timer for message preview (wait for double click)
	if (selected && this.env.contentframe && !list.multi_selecting && !this.dummy_select) {
	// try to be responsive and try not to overload the server when user is pressing up/down key repeatedly
	var now = new Date().getTime(),
	time_diff = now - (this._last_msglist_select_time \|\| 0),
	preview_pane_delay = this.preview_delay_click;

	// user is selecting messages repeatedly, wait until this ends (use larger delay)
	if (time_diff < this.preview_delay_select) {
	preview_pane_delay = this.preview_delay_select;
	if (this.preview_timer) {
	clearTimeout(this.preview_timer);
	}
	if (this.env.contentframe) {
	this.show_contentframe(false);
	}
	}

	this._last_msglist_select_time = now;
	this.preview_timer = setTimeout(function() { ref.msglist_get_preview(); }, preview_pane_delay);
	}
	else if (this.env.contentframe) {
	this.show_contentframe(false);
	}
	};

	this.msglist_dbl_click = function(list)
	{
	if (this.preview_timer)
	clearTimeout(this.preview_timer);

	var mbox, uid = list.get_single_selection();

	// TODO: Here we should just use this.command('show') but we can't
	// because at this point this.busy=true (set by msglist_get_preview())

	if (uid) {
	mbox = this.get_message_mailbox(uid);
	if (mbox == this.env.drafts_mailbox)
	this.open_compose_step({_draft_uid: uid, _mbox: mbox});
	else
	this.show_message(uid);
	}
	};

	this.msglist_get_preview = function()
	{
	var uid = this.get_single_uid();
	if (uid && this.env.contentframe && !this.drag_active)
	this.show_message(uid, false, true);
	else if (this.env.contentframe)
	this.show_contentframe(false);
	};

	this.msglist_expand = function(row)
	{
	if (this.env.messages[row.uid])
	this.env.messages[row.uid].expanded = row.expanded;
	$(row.obj)[row.expanded?'addClass':'removeClass']('expanded');
	};

	this.msglist_set_coltypes = function(list)
	{
	var i, found, name, cols = list.thead.rows[0].cells;

	this.env.listcols = [];

	for (i=0; i<cols.length; i++)
	if (cols[i].id && cols[i].id.startsWith('rcm')) {
	name = cols[i].id.slice(3);
	this.env.listcols.push(name);
	}

	// update message list setup
	this.msglist_setup(this.env.layout);

	if ((found = $.inArray('flag', this.env.listcols)) >= 0)
	this.env.flagged_col = found;

	if ((found = $.inArray('subject', this.env.listcols)) >= 0)
	this.env.subject_col = found;

	this.command('save-pref', { name: 'list_cols', value: this.env.listcols, session: 'list_attrib/columns' });
	};

	this.msglist_setup = function(layout)
	{
	var ret, listcols;

	// allow plugins or skins to override default list layout
	if (ret = this.triggerEvent('msglist_layout', layout))
	layout = ret;

	listcols = this.env[layout == 'widescreen' ? 'listcols_widescreen' : 'listcols'];

	if (layout == 'widescreen' && !this.env.threading)
	listcols = $.grep(listcols, function(value) { return value != 'threads'; });

	// set env vars for message list
	this.env.msglist_layout = layout;
	this.env.msglist_cols = listcols;

	// Set sort-* class on the list element
	var list = this.gui_objects.messagelist,
	classes = list.className.split(' ').filter(function(v) { return !v.startsWith('sort-'); });

	classes.push('sort-' + (this.env.sort_col \|\| 'none'));
	list.className = classes.join(' ');
	};

	this.check_droptarget = function(id)
	{
	switch (this.task) {
	case 'mail':
	return (this.env.mailboxes[id]
	&& !this.env.mailboxes[id].virtual
	&& (this.env.mailboxes[id].id != this.env.mailbox \|\| this.is_multifolder_listing())) ? 1 : 0;

	case 'addressbook':
	var target;
	if (id != this.env.source && (target = this.env.contactfolders[id])) {
	// droptarget is a group
	if (target.type == 'group') {
	if (target.id != this.env.group && !this.env.contactfolders[target.source].readonly) {
	var is_other = this.env.selection_sources.length > 1 \|\| $.inArray(target.source, this.env.selection_sources) == -1;
	return !is_other \|\| this.commands.move ? 1 : 2;
	}
	}
	// droptarget is a (writable) addressbook and it's not the source
	else if (!target.readonly && (this.env.selection_sources.length > 1 \|\| $.inArray(id, this.env.selection_sources) == -1)) {
	return this.commands.move ? 1 : 2;
	}
	}
	}

	return 0;
	};

	// open popup window
	this.open_window = function(url, small, toolbar)
	{
	var wname = 'rcmextwin' + new Date().getTime();

	url += (url.match(/\?/) ? '&' : '?') + '_extwin=1';

	if (this.env.standard_windows)
	var extwin = window.open(url, wname);
	else {
	var win = this.is_framed() ? parent.window : window,
	page = $(win),
	page_width = page.width(),
	page_height = bw.mz ? $('body', win).height() : page.height(),
	w = Math.min(small ? this.env.popup_width_small : this.env.popup_width, page_width),
	h = page_height, // always use same height
	l = (win.screenLeft \|\| win.screenX) + 20,
	t = (win.screenTop \|\| win.screenY) + 20,
	extwin = window.open(url, wname,
	'width='+w+',height='+h+',top='+t+',left='+l+',resizable=yes,location=no,scrollbars=yes'
	+(toolbar ? ',toolbar=yes,menubar=yes,status=yes' : ',toolbar=no,menubar=no,status=no'));
	}

	// detect popup blocker (#1489618)
	// don't care this might not work with all browsers
	if (!extwin \|\| extwin.closed) {
	this.display_message('windowopenerror', 'warning');
	return;
	}

	// write loading... message to empty windows
	if (!url && extwin.document) {
	extwin.document.write('<html><body>' + this.get_label('loading') + '</body></html>');
	}

	// allow plugins to grab the window reference (#1489413)
	this.triggerEvent('openwindow', { url:url, handle:extwin });

	// focus window, delayed to bring to front
	setTimeout(function() { extwin && extwin.focus(); }, 10);

	return extwin;
	};


	/*********************************************************/
	/******* (message) list functionality *******/
	/*********************************************************/

	this.init_message_row = function(row)
	{
	var i, fn = {}, uid = row.uid,
	status_icon = (this.env.status_col != null ? 'status' : 'msg') + 'icn' + row.id;

	if (uid && this.env.messages[uid])
	$.extend(row, this.env.messages[uid]);

	// set eventhandler to status icon
	if (row.icon = document.getElementById(status_icon)) {
	fn.icon = function(e) { ref.command('toggle_status', uid); };
	}

	// save message icon position too
	if (this.env.status_col != null)
	row.msgicon = document.getElementById('msgicn'+row.id);
	else
	row.msgicon = row.icon;

	// set eventhandler to flag icon
	if (this.env.flagged_col != null && (row.flagicon = document.getElementById('flagicn'+row.id))) {
	fn.flagicon = function(e) { ref.command('toggle_flag', uid); };
	}

	// set event handler to thread expand/collapse icon
	if (!row.depth && row.has_children && (row.expando = document.getElementById('rcmexpando'+row.id))) {
	fn.expando = function(e) { ref.expand_message_row(e, uid); };
	}

	// attach events
	$.each(fn, function(i, f) {
	row[i].onclick = function(e) { f(e); return rcube_event.cancel(e); };
	if (bw.touch && row[i].addEventListener) {
	row[i].addEventListener('touchend', function(e) {
	if (e.changedTouches.length == 1) {
	f(e);
	return rcube_event.cancel(e);
	}
	}, false);
	}
	});

	this.triggerEvent('insertrow', { uid:uid, row:row });
	};

	// create a table row in the message list
	this.add_message_row = function(uid, cols, flags, attop)
	{
	if (!this.gui_objects.messagelist \|\| !this.message_list)
	return false;

	// Prevent from adding messages from different folder (#1487752)
	if (flags.mbox != this.env.mailbox && !flags.skip_mbox_check)
	return false;

	// When deleting messages fast it may happen that the same message
	// from the next page could be added many times, we prevent this here
	if (this.message_list.rows[uid])
	return false;

	if (!this.env.messages[uid])
	this.env.messages[uid] = {};

	// merge flags over local message object
	$.extend(this.env.messages[uid], {
	deleted: flags.deleted?1:0,
	replied: flags.answered?1:0,
	unread: !flags.seen?1:0,
	forwarded: flags.forwarded?1:0,
	flagged: flags.flagged?1:0,
	has_children: flags.has_children?1:0,
	depth: flags.depth?flags.depth:0,
	unread_children: flags.unread_children \|\| 0,
	flagged_children: flags.flagged_children \|\| 0,
	parent_uid: flags.parent_uid \|\| 0,
	selected: this.select_all_mode \|\| this.message_list.in_selection(uid),
	ml: flags.ml?1:0,
	ctype: flags.ctype,
	mbox: flags.mbox,
	// flags from plugins
	flags: flags.extra_flags
	});

	var c, n, col, html, css_class, label, status_class = '', status_label = '',
	tree = '', expando = '',
	list = this.message_list,
	rows = list.rows,
	message = this.env.messages[uid],
	msg_id = this.html_identifier(uid,true),
	row_class = 'message'
	+ (!flags.seen ? ' unread' : '')
	+ (flags.deleted ? ' deleted' : '')
	+ (flags.flagged ? ' flagged' : '')
	+ (message.selected ? ' selected' : ''),
	row = { cols:[], style:{}, id:'rcmrow'+msg_id, uid:uid },
	layout = this.env.msglist_layout,
	listcols = this.env.msglist_cols;

	// widescreen layout does not have a separate status column
	if (layout == 'widescreen')
	this.env.status_col = null;
	else if ((n = $.inArray('status', listcols)) >= 0)
	this.env.status_col = n;

	// message status icons
	css_class = 'msgicon';
	if (this.env.status_col === null) {
	css_class += ' status';
	if (flags.deleted) {
	status_class += ' deleted';
	status_label += this.get_label('deleted') + ' ';
	}
	else if (!flags.seen) {
	status_class += ' unread';
	status_label += this.get_label('unread') + ' ';
	}
	else if (flags.unread_children > 0) {
	status_class += ' unreadchildren';
	}
	}
	if (flags.answered) {
	status_class += ' replied';
	status_label += this.get_label('replied') + ' ';
	}
	if (flags.forwarded) {
	status_class += ' forwarded';
	status_label += this.get_label('forwarded') + ' ';
	}

	// update selection
	if (message.selected && !list.in_selection(uid))
	list.selection.push(uid);

	// threads
	if (this.env.threading) {
	if (message.depth) {
	// This assumes that div width is hardcoded to 15px,
	tree += '<span id="rcmtab' + msg_id + '" class="branch" style="width:' + (message.depth * 15) + 'px;">  </span>';

	if ((rows[message.parent_uid] && rows[message.parent_uid].expanded === false)
	\|\| ((this.env.autoexpand_threads == 0 \|\| this.env.autoexpand_threads == 2) &&
	(!rows[message.parent_uid] \|\| !rows[message.parent_uid].expanded))
	) {
	row.style.display = 'none';
	message.expanded = false;
	}
	else
	message.expanded = true;

	row_class += ' thread expanded';
	}
	else if (message.has_children) {
	if (message.expanded === undefined && (this.env.autoexpand_threads == 1 \|\| (this.env.autoexpand_threads == 2 && message.unread_children))) {
	message.expanded = true;
	}

	expando = '<div id="rcmexpando' + row.id + '" class="' + (message.expanded ? 'expanded' : 'collapsed') + '">  </div>';
	row_class += ' thread' + (message.expanded ? ' expanded' : '');
	}

	if (flags.unread_children && flags.seen && !message.expanded)
	row_class += ' unroot';

	if (flags.flagged_children && !message.expanded)
	row_class += ' flaggedroot';
	}

	tree += '<span id="msgicn'+row.id+'" class="'+css_class+status_class+'" title="'+status_label+'"></span>';
	row.className = row_class;

	// build subject link
	if (cols.subject) {
	var action = flags.mbox == this.env.drafts_mailbox ? 'compose' : 'show',
	uid_param = flags.mbox == this.env.drafts_mailbox ? '_draft_uid' : '_uid',
	query = { _mbox: flags.mbox };
	query[uid_param] = uid;
	cols.subject = '<a href="' + this.url(action, query) + '" onclick="return rcube_event.keyboard_only(event)"' +
	' onmouseover="rcube_webmail.long_subject_title(this,'+(message.depth+1)+')" tabindex="-1"><span>'+cols.subject+'</span></a>';
	}

	// add each submitted col
	for (n in listcols) {
	c = listcols[n];
	col = {className: String(c).toLowerCase(), events:{}};

	if (this.env.coltypes[c] && this.env.coltypes[c].hidden) {
	col.className += ' hidden';
	}

	if (c == 'flag') {
	css_class = (flags.flagged ? 'flagged' : 'unflagged');
	label = this.get_label(css_class);
	html = '<span id="flagicn'+row.id+'" class="'+css_class+'" title="'+label+'"></span>';
	}
	else if (c == 'attachment') {
	label = this.get_label('withattachment');
	if (flags.attachmentClass)
	html = '<span class="'+flags.attachmentClass+'" title="'+label+'"></span>';
	else if (flags.ctype == 'multipart/report')
	html = '<span class="report"></span>';
	else if (flags.ctype == 'multipart/encrypted' \|\| flags.ctype == 'application/pkcs7-mime')
	html = '<span class="encrypted"></span>';
	else if (flags.hasattachment \|\| (!flags.hasnoattachment && /application\/\|multipart\/(m\|signed)/.test(flags.ctype)))
	html = '<span class="attachment" title="'+label+'"></span>';
	else
	html = ' ';
	}
	else if (c == 'status') {
	label = '';
	if (flags.deleted) {
	css_class = 'deleted';
	label = this.get_label('deleted');
	}
	else if (!flags.seen) {
	css_class = 'unread';
	label = this.get_label('unread');
	}
	else if (flags.unread_children > 0) {
	css_class = 'unreadchildren';
	}
	else
	css_class = 'msgicon';
	html = '<span id="statusicn'+row.id+'" class="'+css_class+status_class+'" title="'+label+'"></span>';
	}
	else if (c == 'threads')
	html = expando;
	else if (c == 'subject') {
	html = tree + cols[c];
	}
	else if (c == 'priority') {
	if (flags.prio > 0 && flags.prio < 6) {
	label = this.get_label('priority') + ' ' + flags.prio;
	html = '<span class="prio'+flags.prio+'" title="'+label+'"></span>';
	}
	else
	html = ' ';
	}
	else if (c == 'folder') {
	html = '<span onmouseover="rcube_webmail.long_subject_title(this)">' + cols[c] + '<span>';
	}
	else
	html = cols[c];

	col.innerHTML = html;
	row.cols.push(col);
	}

	if (layout == 'widescreen')
	row = this.widescreen_message_row(row, uid, message);

	list.insert_row(row, attop);

	// remove 'old' row
	if (attop && this.env.pagesize && list.rowcount > this.env.pagesize) {
	var uid = list.get_last_row();
	list.remove_row(uid);
	list.clear_selection(uid);
	}
	};

	// Converts standard message list record into "widescreen" (3-column) layout
	this.widescreen_message_row = function(row, uid, message)
	{
	var domrow = document.createElement('tr');

	domrow.id = row.id;
	domrow.uid = row.uid;
	domrow.className = row.className;
	if (row.style) $.extend(domrow.style, row.style);

	$.each(this.env.widescreen_list_template, function() {
	if (!ref.env.threading && this.className == 'threads')
	return;

	var i, n, e, col, domcol,
	domcell = document.createElement('td');

	if (this.className) domcell.className = this.className;

	for (i=0; this.cells && i < this.cells.length; i++) {
	for (n=0; row.cols && n < row.cols.length; n++) {
	if (this.cells[i] == row.cols[n].className) {
	col = row.cols[n];
	domcol = document.createElement('span');
	domcol.className = this.cells[i];
	if (this.className == 'subject' && domcol.className != 'subject')
	domcol.className += ' skip-on-drag';
	if (col.innerHTML)
	domcol.innerHTML = col.innerHTML;
	domcell.appendChild(domcol);
	break;
	}
	}
	}

	domrow.appendChild(domcell);
	});

	if (this.env.threading && message.depth) {
	n = this.calculate_thread_padding(message.depth);
	$('td.subject', domrow).attr('style', 'padding-left:' + n + ' !important');
	$('span.branch', domrow).remove();
	}

	return domrow;
	};

	this.calculate_thread_padding = function(level)
	{
	ref.env.thread_padding.match(/^([0-9.]+)(.+)/);
	return (Math.min(6, level) * parseFloat(RegExp.$1)) + RegExp.$2;
	};

	this.set_list_sorting = function(sort_col, sort_order)
	{
	var sort_old = this.env.sort_col == 'arrival' ? 'date' : this.env.sort_col,
	sort_new = sort_col == 'arrival' ? 'date' : sort_col;

	// set table header class
	$('#rcm' + sort_old).removeClass('sorted' + this.env.sort_order.toUpperCase());
	if (sort_new)
	$('#rcm' + sort_new).addClass('sorted' + sort_order);

	// if sorting by 'arrival' is selected, click on date column should not switch to 'date'
	$('#rcmdate > a').prop('rel', sort_col == 'arrival' ? 'arrival' : 'date');

	this.env.sort_col = sort_col;
	this.env.sort_order = sort_order;
	};

	this.set_list_options = function(cols, sort_col, sort_order, threads, layout)
	{
	var update, post_data = {};

	if (sort_col === undefined)
	sort_col = this.env.sort_col;
	if (!sort_order)
	sort_order = this.env.sort_order;

	if (this.env.sort_col != sort_col \|\| this.env.sort_order != sort_order) {
	update = 1;
	this.set_list_sorting(sort_col, sort_order);
	}

	if (this.env.threading != threads) {
	update = 1;
	post_data._threads = threads;
	}

	if (layout && this.env.layout != layout) {
	this.triggerEvent('layout-change', {old_layout: this.env.layout, new_layout: layout});
	update = 1;
	this.env.layout = post_data._layout = layout;

	// update message list setup
	this.msglist_setup(this.env.layout);
	}

	if (cols && cols.length) {
	// make sure new columns are added at the end of the list
	var i, idx, name, newcols = [], oldcols = this.env.listcols;

	for (i=0; i<oldcols.length; i++) {
	name = oldcols[i];
	idx = $.inArray(name, cols);
	if (idx != -1) {
	newcols.push(name);
	delete cols[idx];
	}
	}
	for (i=0; i<cols.length; i++)
	if (cols[i])
	newcols.push(cols[i]);

	if (newcols.join() != oldcols.join()) {
	update = 1;
	post_data._cols = newcols.join(',');
	}
	}

	if (update)
	this.list_mailbox('', '', sort_col+'_'+sort_order, post_data);
	};

	// when user double-clicks on a row
	this.show_message = function(id, safe, preview)
	{
	if (!id)
	return;

	var win, target = window,
	url = this.params_from_uid(id, {_caps: this.browser_capabilities()});

	if (preview && (win = this.get_frame_window(this.env.contentframe))) {
	target = win;
	url._framed = 1;
	}

	if (safe)
	url._safe = 1;

	// also send search request to get the right messages
	if (this.env.search_request)
	url._search = this.env.search_request;

	if (this.env.extwin)
	url._extwin = 1;

	url = this.url(preview ? 'preview': 'show', url);

	if (preview)
	this.preview_id = id;

	if (preview && String(target.location.href).indexOf(url) >= 0) {
	this.show_contentframe(true);
	}
	else {
	if (!preview && this.env.message_extwin && !this.env.extwin)
	this.open_window(url, true);
	else {
	// "Allow remote resources" reloads the page, we remove this request from the history,
	// so Back button works as expected, i.e. ignores the reload request (#6620)
	if (safe && document.referrer && window.history.replaceState)
	window.history.replaceState({}, '', document.referrer);

	this.location_href(url, target, true);
	}
	}
	};

	// update message status and unread counter after marking a message as read
	this.set_unread_message = function(id, folder)
	{
	var self = this;

	// find window with messages list
	if (!self.message_list)
	self = self.opener();

	if (!self && window.parent)
	self = parent.rcmail;

	if (!self \|\| !self.message_list)
	return;

	// this may fail in multifolder mode
	if (self.set_message(id, 'unread', false) === false)
	self.set_message(id + '-' + folder, 'unread', false);

	if (self.env.unread_counts[folder] > 0) {
	self.env.unread_counts[folder] -= 1;
	self.set_unread_count(folder, self.env.unread_counts[folder], folder == 'INBOX' && !self.is_multifolder_listing());
	}
	};

	this.show_contentframe = function(show)
	{
	var frame, win, name = this.env.contentframe;

	if (frame = this.get_frame_element(name)) {
	if (!show && (win = this.get_frame_window(name))) {
	if (win.location.href.indexOf(this.env.blankpage) < 0) {
	if (win.stop)
	win.stop();
	else // IE
	win.document.execCommand('Stop');

	win.location.href = this.env.blankpage;
	}
	}
	else if (!bw.safari && !bw.konq)
	$(frame)[show ? 'show' : 'hide']();
	}

	if (!show) {
	this.unlock_frame();
	delete this.preview_id;
	}
	};

	this.get_frame_element = function(id)
	{
	var frame;

	if (id && (frame = document.getElementById(id)))
	return frame;
	};

	this.get_frame_window = function(id)
	{
	var frame = this.get_frame_element(id);

	if (frame && frame.name && window.frames)
	return window.frames[frame.name];
	};

	this.lock_frame = function(target)
	{
	var rc = this.is_framed() ? parent.rcmail : this;

	if (!rc.env.frame_lock)
	rc.env.frame_lock = rc.set_busy(true, 'loading');

	if (target.frameElement)
	$(target.frameElement).on('load.lock', function(e) {
	rc.unlock_frame();
	$(this).off('load.lock');
	});
	};

	this.unlock_frame = function()
	{
	if (this.env.frame_lock) {
	this.set_busy(false, null, this.env.frame_lock);
	this.env.frame_lock = null;
	}
	};

	// list a specific page
	this.list_page = function(page)
	{
	if (page == 'next')
	page = this.env.current_page+1;
	else if (page == 'last')
	page = this.env.pagecount;
	else if (page == 'prev' && this.env.current_page > 1)
	page = this.env.current_page-1;
	else if (page == 'first' && this.env.current_page > 1)
	page = 1;

	if (page > 0 && page <= this.env.pagecount) {
	this.env.current_page = page;

	if (this.task == 'addressbook' \|\| this.contact_list)
	this.list_contacts(this.env.source, this.env.group, page);
	else if (this.task == 'mail')
	this.list_mailbox(this.env.mailbox, page);
	}
	};

	// sends request to check for recent messages
	this.checkmail = function()
	{
	var lock = this.set_busy(true, 'checkingmail'),
	params = this.check_recent_params();

	this.http_post('check-recent', params, lock);
	};

	// list messages of a specific mailbox using filter
	this.filter_mailbox = function(filter)
	{
	if (this.filter_disabled)
	return;

	var params = this.search_params(false, filter),
	lock = this.set_busy(true, 'searching');

	this.clear_message_list();

	// reset vars
	this.env.current_page = 1;
	this.env.search_filter = filter;
	this.http_request('search', params, lock);
	this.update_state({_mbox: params._mbox, _filter: filter, _scope: params._scope});
	};

	// reload the current message listing
	this.refresh_list = function()
	{
	this.list_mailbox(this.env.mailbox, this.env.current_page \|\| 1, null, { _clear:1 }, true);
	if (this.message_list)
	this.message_list.clear_selection();
	};

	// list messages of a specific mailbox
	this.list_mailbox = function(mbox, page, sort, url, update_only)
	{
	var win, target = window;

	if (typeof url != 'object')
	url = {};

	if (!mbox)
	mbox = this.env.mailbox ? this.env.mailbox : 'INBOX';

	// add sort to url if set
	if (sort)
	url._sort = sort;

	// folder change, reset page, search scope, etc.
	if (this.env.mailbox != mbox) {
	page = 1;
	this.env.current_page = page;
	this.env.search_scope = 'base';
	this.select_all_mode = false;
	this.reset_search_filter();
	}
	// also send search request to get the right messages
	else if (this.env.search_request)
	url._search = this.env.search_request;

	if (!update_only) {
	// unselect selected messages and clear the list and message data
	this.clear_message_list();

	if (mbox != this.env.mailbox \|\| (mbox == this.env.mailbox && !page && !sort))
	url._refresh = 1;

	this.select_folder(mbox, '', true);
	this.unmark_folder(mbox, 'recent', '', true);
	this.env.mailbox = mbox;
	}

	// load message list remotely
	if (this.gui_objects.messagelist) {
	this.list_mailbox_remote(mbox, page, url);
	return;
	}

	if (win = this.get_frame_window(this.env.contentframe)) {
	target = win;
	url._framed = 1;
	}

	if (this.env.uid)
	url._uid = this.env.uid;

	if (page)
	url._page = page;

	// load message list to target frame/window
	if (mbox) {
	url._mbox = mbox;
	this.set_busy(true, 'loading');
	this.location_href(url, target);
	}
	};

	this.clear_message_list = function()
	{
	this.env.messages = {};

	this.show_contentframe(false);
	if (this.message_list)
	this.message_list.clear(true);
	};

	// send remote request to load message list
	this.list_mailbox_remote = function(mbox, page, url)
	{
	var lock = this.set_busy(true, 'loading');

	if (typeof url != 'object')
	url = {};

	url._layout = this.env.layout
	url._mbox = mbox;
	url._page = page;

	this.http_request('list', url, lock);
	this.update_state({ _mbox: mbox, _page: (page && page > 1 ? page : null) });
	};

	// removes messages that doesn't exists from list selection array
	this.update_selection = function()
	{
	var list = this.message_list,
	selected = list.selection,
	rows = list.rows,
	i, selection = [];

	for (i in selected)
	if (rows[selected[i]])
	selection.push(selected[i]);

	list.selection = selection;

	// reset preview frame, if currently previewed message is not selected (has been removed)
	try {
	var win = this.get_frame_window(this.env.contentframe),
	id = win.rcmail.env.uid;

	if (id && !list.in_selection(id))
	this.show_contentframe(false);
	}
	catch (e) {};
	};

	// expand all threads with unread children
	this.expand_unread = function()
	{
	var r, tbody = this.message_list.tbody,
	new_row = tbody.firstChild;

	while (new_row) {
	if (new_row.nodeType == 1 && (r = this.message_list.rows[new_row.uid]) && r.unread_children) {
	this.message_list.expand_all(r);
	this.set_unread_children(r.uid);
	}

	new_row = new_row.nextSibling;
	}

	return false;
	};

	// thread expanding/collapsing handler
	this.expand_message_row = function(e, uid)
	{
	var row = this.message_list.rows[uid];

	// handle unread_children/flagged_children mark
	row.expanded = !row.expanded;
	this.set_unread_children(uid);
	this.set_flagged_children(uid);
	row.expanded = !row.expanded;

	this.message_list.expand_row(e, uid);
	};

	// message list expanding
	this.expand_threads = function()
	{
	if (!this.env.threading \|\| !this.env.autoexpand_threads \|\| !this.message_list)
	return;

	switch (this.env.autoexpand_threads) {
	case 2: this.expand_unread(); break;
	case 1: this.message_list.expand_all(); break;
	}
	};

	// Initializes threads indicators/expanders after list update
	this.init_threads = function(roots, mbox)
	{
	// #1487752
	if (mbox && mbox != this.env.mailbox)
	return false;

	for (var n=0, len=roots.length; n<len; n++)
	this.add_tree_icons(roots[n]);
	this.expand_threads();
	};

	// adds threads tree icons to the list (or specified thread)
	this.add_tree_icons = function(root)
	{
	var i, l, r, n, len, pos, tmp = [], uid = [],
	row, rows = this.message_list.rows;

	if (root)
	row = rows[root] ? rows[root].obj : null;
	else
	row = this.message_list.tbody.firstChild;

	while (row) {
	if (row.nodeType == 1 && (r = rows[row.uid])) {
	if (r.depth) {
	for (i=tmp.length-1; i>=0; i--) {
	len = tmp[i].length;
	if (len > r.depth) {
	pos = len - r.depth;
	if (!(tmp[i][pos] & 2))
	tmp[i][pos] = tmp[i][pos] ? tmp[i][pos]+2 : 2;
	}
	else if (len == r.depth) {
	if (!(tmp[i][0] & 2))
	tmp[i][0] += 2;
	}
	if (r.depth > len)
	break;
	}

	tmp.push(new Array(r.depth));
	tmp[tmp.length-1][0] = 1;
	uid.push(r.uid);
	}
	else {
	if (tmp.length) {
	for (i in tmp) {
	this.set_tree_icons(uid[i], tmp[i]);
	}
	tmp = [];
	uid = [];
	}
	if (root && row != rows[root].obj)
	break;
	}
	}
	row = row.nextSibling;
	}

	if (tmp.length) {
	for (i in tmp) {
	this.set_tree_icons(uid[i], tmp[i]);
	}
	}
	};

	// adds tree icons to specified message row
	this.set_tree_icons = function(uid, tree)
	{
	var i, divs = [], html = '', len = tree.length;

	for (i=0; i<len; i++) {
	if (tree[i] > 2)
	divs.push({'class': 'l3', width: 15});
	else if (tree[i] > 1)
	divs.push({'class': 'l2', width: 15});
	else if (tree[i] > 0)
	divs.push({'class': 'l1', width: 15});
	// separator div
	else if (divs.length && !divs[divs.length-1]['class'])
	divs[divs.length-1].width += 15;
	else
	divs.push({'class': null, width: 15});
	}

	for (i=divs.length-1; i>=0; i--) {
	if (divs[i]['class'])
	html += '<div class="tree '+divs[i]['class']+'" />';
	else
	html += '<div style="width:'+divs[i].width+'px" />';
	}

	if (html)
	$('#rcmtab'+this.html_identifier(uid, true)).html(html);
	};

	// update parent in a thread
	this.update_thread_root = function(uid, flag)
	{
	if (!this.env.threading)
	return;

	var root = this.message_list.find_root(uid);

	if (uid == root)
	return;

	var p = this.message_list.rows[root];

	if (flag == 'read' && p.unread_children) {
	p.unread_children--;
	}
	else if (flag == 'unread' && p.has_children) {
	// unread_children may be undefined
	p.unread_children = (p.unread_children \|\| 0) + 1;
	}
	else if (flag == 'unflagged' && p.flagged_children) {
	p.flagged_children--;
	}
	else if (flag == 'flagged' && p.has_children) {
	p.flagged_children = (p.flagged_children \|\| 0) + 1;
	}
	else {
	return;
	}

	this.set_message_icon(root);
	this.set_unread_children(root);
	this.set_flagged_children(root);
	};

	// update thread indicators for all messages in a thread below the specified message
	// return number of removed/added root level messages
	this.update_thread = function(uid)
	{
	if (!this.env.threading \|\| !this.message_list.rows[uid])
	return 0;

	var r, parent, count = 0,
	list = this.message_list,
	rows = list.rows,
	row = rows[uid],
	depth = rows[uid].depth,
	roots = [];

	if (!row.depth) // root message: decrease roots count
	count--;

	// update unread_children for thread root
	if (row.depth && row.unread) {
	parent = list.find_root(uid);
	rows[parent].unread_children--;
	this.set_unread_children(parent);
	}

	// update unread_children for thread root
	if (row.depth && row.flagged) {
	parent = list.find_root(uid);
	rows[parent].flagged_children--;
	this.set_flagged_children(parent);
	}

	parent = row.parent_uid;

	// children
	row = row.obj.nextSibling;
	while (row) {
	if (row.nodeType == 1 && (r = rows[row.uid])) {
	if (!r.depth \|\| r.depth <= depth)
	break;

	r.depth--; // move left
	// reset width and clear the content of a tab, icons will be added later
	$('#rcmtab'+r.id).width(r.depth * 15).html('');
	if (!r.depth) { // a new root
	count++; // increase roots count
	r.parent_uid = 0;
	if (r.has_children) {
	// replace 'leaf' with 'collapsed'
	$('#' + r.id + ' .leaf').first()
	.attr('id', 'rcmexpando' + r.id)
	.attr('class', (r.obj.style.display != 'none' ? 'expanded' : 'collapsed'))
	.mousedown({uid: r.uid}, function(e) {
	return ref.expand_message_row(e, e.data.uid);
	});

	r.unread_children = 0;
	roots.push(r);
	}
	// show if it was hidden
	if (r.obj.style.display == 'none')
	$(r.obj).show();
	}
	else {
	if (r.depth == depth)
	r.parent_uid = parent;
	if (r.unread && roots.length)
	roots[roots.length-1].unread_children++;
	}
	}
	row = row.nextSibling;
	}

	// update unread_children/flagged_children for roots
	for (r=0; r<roots.length; r++) {
	this.set_unread_children(roots[r].uid);
	this.set_flagged_children(roots[r].uid);
	}

	return count;
	};

	this.delete_excessive_thread_rows = function()
	{
	var rows = this.message_list.rows,
	tbody = this.message_list.tbody,
	row = tbody.firstChild,
	cnt = this.env.pagesize + 1;

	while (row) {
	if (row.nodeType == 1 && (r = rows[row.uid])) {
	if (!r.depth && cnt)
	cnt--;

	if (!cnt)
	this.message_list.remove_row(row.uid);
	}
	row = row.nextSibling;
	}
	};

	// set message icon
	this.set_message_icon = function(uid)
	{
	var css_class, label = '',
	row = this.message_list.rows[uid];

	if (!row)
	return false;

	if (row.icon) {
	css_class = 'msgicon';
	if (row.deleted) {
	css_class += ' deleted';
	label += this.get_label('deleted') + ' ';
	}
	else if (row.unread) {
	css_class += ' unread';
	label += this.get_label('unread') + ' ';
	}
	else if (row.unread_children)
	css_class += ' unreadchildren';
	if (row.msgicon == row.icon) {
	if (row.replied) {
	css_class += ' replied';
	label += this.get_label('replied') + ' ';
	}
	if (row.forwarded) {
	css_class += ' forwarded';
	label += this.get_label('forwarded') + ' ';
	}
	css_class += ' status';
	}

	$(row.icon).attr({'class': css_class, title: label});
	}

	if (row.msgicon && row.msgicon != row.icon) {
	label = '';
	css_class = 'msgicon';
	if (!row.unread && row.unread_children) {
	css_class += ' unreadchildren';
	}
	if (row.replied) {
	css_class += ' replied';
	label += this.get_label('replied') + ' ';
	}
	if (row.forwarded) {
	css_class += ' forwarded';
	label += this.get_label('forwarded') + ' ';
	}

	$(row.msgicon).attr({'class': css_class, title: label});
	}

	if (row.flagicon) {
	css_class = (row.flagged ? 'flagged' : 'unflagged');
	label = this.get_label(css_class);
	$(row.flagicon).attr('class', css_class)
	.attr({'aria-label': label, title: label});
	}
	};

	// set message status
	this.set_message_status = function(uid, flag, status)
	{
	var row = this.message_list.rows[uid];

	if (!row)
	return false;

	if (flag == 'unread') {
	if (row.unread != status)
	this.update_thread_root(uid, status ? 'unread' : 'read');
	}
	else if (flag == 'flagged') {
	this.update_thread_root(uid, status ? 'flagged' : 'unflagged');
	}

	if ($.inArray(flag, ['unread', 'deleted', 'replied', 'forwarded', 'flagged']) > -1)
	row[flag] = status;
	};

	// set message row status, class and icon
	this.set_message = function(uid, flag, status)
	{
	var row = this.message_list && this.message_list.rows[uid];

	if (!row)
	return false;

	if (flag)
	this.set_message_status(uid, flag, status);

	if ($.inArray(flag, ['unread', 'deleted', 'flagged']) > -1)
	$(row.obj)[row[flag] ? 'addClass' : 'removeClass'](flag);

	this.set_unread_children(uid);
	this.set_message_icon(uid);
	};

	// sets unroot (unread_children) class of parent row
	this.set_unread_children = function(uid)
	{
	var row = this.message_list.rows[uid];

	if (row.parent_uid)
	return;

	var enable = !row.unread && row.unread_children && !row.expanded;
	$(row.obj)[enable ? 'addClass' : 'removeClass']('unroot');
	};

	// sets flaggedroot (flagged_children) class of parent row
	this.set_flagged_children = function(uid)
	{
	var row = this.message_list.rows[uid];

	if (row.parent_uid)
	return;

	var enable = row.flagged_children && !row.expanded;
	$(row.obj)[enable ? 'addClass' : 'removeClass']('flaggedroot');
	};

	// copy selected messages to the specified mailbox
	this.copy_messages = function(mbox, event, uids)
	{
	if (mbox && typeof mbox === 'object') {
	if (mbox.uids) uids = mbox.uids;
	mbox = mbox.id;
	}
	else if (!mbox) {
	uids = this.env.uid ? [this.env.uid] : this.message_list.get_selection();
	return this.folder_selector(event, function(folder, obj) {
	ref.command('copy', {id: folder, uids: uids}, obj, event, true);
	});
	}

	// exit if current or no mailbox specified
	if (!mbox \|\| mbox == this.env.mailbox)
	return;

	var post_data = this.selection_post_data({_target_mbox: mbox, _uid: uids});

	// exit if selection is empty
	if (!post_data._uid)
	return;

	// send request to server
	this.http_post('copy', post_data, this.display_message('copyingmessage', 'loading'));
	};

	// move selected messages to the specified mailbox
	this.move_messages = function(mbox, event, uids)
	{
	if (mbox && typeof mbox === 'object') {
	if (mbox.uids) uids = mbox.uids;
	mbox = mbox.id;
	}
	else if (!mbox) {
	uids = this.env.uid ? [this.env.uid] : this.message_list.get_selection();
	return this.folder_selector(event, function(folder, obj) {
	ref.command('move', {id: folder, uids: uids}, obj, event, true);
	});
	}

	// exit if current or no mailbox specified
	if (!mbox \|\| (mbox == this.env.mailbox && !this.is_multifolder_listing()))
	return;

	var lock = false, post_data = this.selection_post_data({_target_mbox: mbox, _uid: uids});

	// exit if selection is empty
	if (!post_data._uid)
	return;

	// show wait message
	if (this.env.action == 'show')
	lock = this.set_busy(true, 'movingmessage');

	// Hide message command buttons until a message is selected
	this.enable_command(this.env.message_commands, false);

	this.with_selected_messages('move', post_data, lock);

	if (this.env.action != 'show')
	this.show_contentframe(false);
	};

	// delete selected messages from the current mailbox
	this.delete_messages = function(event)
	{
	var list = this.message_list, trash = this.env.trash_mailbox;

	// if config is set to flag for deletion
	if (this.env.flag_for_deletion) {
	this.mark_message('delete');
	return false;
	}
	// if there isn't a defined trash mailbox or we are in it
	else if (!trash \|\| this.env.mailbox == trash)
	this.permanently_remove_messages();
	// we're in Junk folder and delete_junk is enabled
	else if (this.env.delete_junk && this.env.junk_mailbox && this.env.mailbox == this.env.junk_mailbox)
	this.permanently_remove_messages();
	// if there is a trash mailbox defined and we're not currently in it
	else {
	// if shift was pressed delete it immediately
	if ((list && list.modkey == SHIFT_KEY) \|\| (event && rcube_event.get_modifier(event) == SHIFT_KEY)) {
	this.confirm_dialog(this.get_label('deletemessagesconfirm'), 'delete', function() {
	ref.permanently_remove_messages();
	});
	}
	else
	this.move_messages(trash);
	}

	return true;
	};

	// delete the selected messages permanently
	this.permanently_remove_messages = function()
	{
	var post_data = this.selection_post_data();

	// exit if selection is empty
	if (!post_data._uid)
	return;

	this.with_selected_messages('delete', post_data);
	this.show_contentframe(false);
	};

	// Send a specific move/delete request with UIDs of all selected messages
	this.with_selected_messages = function(action, post_data, lock, http_action)
	{
	var count = 0, msg,
	remove = (action == 'delete' \|\| !this.is_multifolder_listing());

	// update the list (remove rows, clear selection)
	if (this.message_list) {
	var n, len, id, root, roots = [],
	selection = post_data._uid,
	display_next = this.check_display_next();

	if (selection === '*')
	selection = this.message_list.get_selection();
	else if (typeof selection == 'string')
	selection = selection.split(',');

	for (n=0, len=selection.length; n<len; n++) {
	id = selection[n];

	if (this.env.threading) {
	count += this.update_thread(id);
	root = this.message_list.find_root(id);
	if (root != id && $.inArray(root, roots) < 0) {
	roots.push(root);
	}
	}

	if (remove)
	this.message_list.remove_row(id, display_next && n == selection.length-1);
	}

	// make sure there are no selected rows
	if (!display_next && remove)
	this.message_list.clear_selection();

	// update thread tree icons
	for (n=0, len=roots.length; n<len; n++) {
	this.add_tree_icons(roots[n]);
	}
	}

	if (count < 0)
	post_data._count = (count*-1);
	// remove threads from the end of the list
	else if (count > 0 && remove)
	this.delete_excessive_thread_rows();

	if (!remove)
	post_data._refresh = 1;

	if (!lock) {
	msg = action == 'move' ? 'movingmessage' : 'deletingmessage';
	lock = this.display_message(msg, 'loading');
	}

	// send request to server
	this.http_post(http_action \|\| action, post_data, lock);
	};

	// build post data for message delete/move/copy/flag requests
	this.selection_post_data = function(data)
	{
	if (typeof(data) != 'object')
	data = {};

	if (!data._uid)
	data._uid = this.env.uid ? [this.env.uid] : this.message_list.get_selection();

	data._mbox = this.env.mailbox;
	data._uid = this.uids_to_list(data._uid);

	if (this.env.action)
	data._from = this.env.action;

	// also send search request to get the right messages
	if (this.env.search_request)
	data._search = this.env.search_request;

	if (this.env.display_next && this.env.next_uid)
	data._next_uid = this.env.next_uid;

	return data;
	};

	this.check_display_next = function()
	{
	return this.env.display_next && (this.preview_id \|\| !this.env.contentframe);
	};

	// set a specific flag to one or more messages
	this.mark_message = function(flag, uid)
	{
	var a_uids = [], r_uids = [], len, n, id,
	list = this.message_list;

	if (uid)
	a_uids[0] = uid;
	else if (this.env.uid)
	a_uids[0] = this.env.uid;
	else if (list)
	a_uids = list.get_selection();

	if (!list)
	r_uids = a_uids;
	else {
	list.focus();
	for (n=0, len=a_uids.length; n<len; n++) {
	id = a_uids[n];
	if ((flag == 'read' && list.rows[id].unread)
	\|\| (flag == 'unread' && !list.rows[id].unread)
	\|\| (flag == 'delete' && !list.rows[id].deleted)
	\|\| (flag == 'undelete' && list.rows[id].deleted)
	\|\| (flag == 'flagged' && !list.rows[id].flagged)
	\|\| (flag == 'unflagged' && list.rows[id].flagged))
	{
	r_uids.push(id);
	}
	}
	}

	// nothing to do
	if (!r_uids.length && !this.select_all_mode)
	return;

	switch (flag) {
	case 'read':
	case 'unread':
	this.toggle_read_status(flag, r_uids);
	break;
	case 'delete':
	case 'undelete':
	this.toggle_delete_status(r_uids);
	break;
	case 'flagged':
	case 'unflagged':
	this.toggle_flagged_status(flag, a_uids);
	break;
	}
	};

	// set class to read/unread
	this.toggle_read_status = function(flag, a_uids)
	{
	var i, len = a_uids.length,
	post_data = this.selection_post_data({_uid: a_uids, _flag: flag}),
	lock = this.display_message('markingmessage', 'loading');

	// mark all message rows as read/unread
	for (i=0; i<len; i++)
	this.set_message(a_uids[i], 'unread', (flag == 'unread' ? true : false));

	this.http_post('mark', post_data, lock);
	};

	// set image to flagged or unflagged
	this.toggle_flagged_status = function(flag, a_uids)
	{
	var i, len = a_uids.length,
	win = this.env.contentframe ? this.get_frame_window(this.env.contentframe) : window,
	post_data = this.selection_post_data({_uid: a_uids, _flag: flag}),
	lock = this.display_message('markingmessage', 'loading');

	// mark all message rows as flagged/unflagged
	for (i=0; i<len; i++)
	this.set_message(a_uids[i], 'flagged', (flag == 'flagged' ? true : false));

	if (this.env.action == 'show' \|\| $.inArray(this.preview_id, a_uids) >= 0)
	$(win.document.body)[flag == 'flagged' ? 'addClass' : 'removeClass']('status-flagged');

	this.http_post('mark', post_data, lock);
	};

	// mark all message rows as deleted/undeleted
	this.toggle_delete_status = function(a_uids)
	{
	var i, uid, all_deleted = true,
	len = a_uids.length,
	rows = this.message_list ? this.message_list.rows : {};

	if (len == 1) {
	if (!this.message_list \|\| (rows[a_uids[0]] && !rows[a_uids[0]].deleted))
	this.flag_as_deleted(a_uids);
	else
	this.flag_as_undeleted(a_uids);

	return true;
	}

	for (i=0; i<len; i++) {
	uid = a_uids[i];
	if (rows[uid] && !rows[uid].deleted) {
	all_deleted = false;
	break;
	}
	}

	if (all_deleted)
	this.flag_as_undeleted(a_uids);
	else
	this.flag_as_deleted(a_uids);

	return true;
	};

	this.flag_as_undeleted = function(a_uids)
	{
	var i, len = a_uids.length,
	post_data = this.selection_post_data({_uid: a_uids, _flag: 'undelete'}),
	lock = this.display_message('markingmessage', 'loading');

	for (i=0; i<len; i++)
	this.set_message(a_uids[i], 'deleted', false);

	this.http_post('mark', post_data, lock);
	};

	this.flag_as_deleted = function(a_uids)
	{
	var r_uids = [],
	post_data = this.selection_post_data({_uid: a_uids, _flag: 'delete'}),
	lock = this.display_message('markingmessage', 'loading'),
	list = this.message_list,
	rows = list ? list.rows : {},
	count = 0,
	display_next = this.check_display_next();

	for (var i=0, len=a_uids.length; i<len; i++) {
	uid = a_uids[i];
	if (rows[uid]) {
	if (rows[uid].unread)
	r_uids[r_uids.length] = uid;

	if (this.env.skip_deleted) {
	count += this.update_thread(uid);
	list.remove_row(uid, display_next && i == list.get_selection(false).length-1);
	}
	else
	this.set_message(uid, 'deleted', true);
	}
	}

	// make sure there are no selected rows
	if (this.env.skip_deleted && list) {
	if (!display_next \|\| !list.rowcount)
	list.clear_selection();
	if (count < 0)
	post_data._count = (count*-1);
	else if (count > 0)
	// remove threads from the end of the list
	this.delete_excessive_thread_rows();
	}

	// set of messages to mark as seen
	if (r_uids.length)
	post_data._ruid = this.uids_to_list(r_uids);

	if (this.env.skip_deleted && this.env.display_next && this.env.next_uid)
	post_data._next_uid = this.env.next_uid;

	this.http_post('mark', post_data, lock);
	};

	// flag as read without mark request (called from backend)
	// argument should be a coma-separated list of uids
	this.flag_deleted_as_read = function(uids)
	{
	var uid, i, len,
	rows = this.message_list ? this.message_list.rows : {};

	if (typeof uids == 'string')
	uids = uids.split(',');

	for (i=0, len=uids.length; i<len; i++) {
	uid = uids[i];
	if (rows[uid])
	this.set_message(uid, 'unread', false);
	}
	};

	// Converts array of message UIDs to comma-separated list for use in URL
	// with select_all mode checking
	this.uids_to_list = function(uids)
	{
	if (this.select_all_mode)
	return '*';

	// multi-folder list of uids cannot be passed as a string (#6845)
	if ($.isArray(uids) && (uids.length == 1 \|\| String(uids[0]).indexOf('-') == -1))
	uids = uids.join(',');

	return uids;
	};

	// Sets title of the delete button
	this.set_button_titles = function()
	{
	var label = 'deletemessage';

	if (!this.env.flag_for_deletion
	&& this.env.trash_mailbox && this.env.mailbox != this.env.trash_mailbox
	&& (!this.env.delete_junk \|\| !this.env.junk_mailbox \|\| this.env.mailbox != this.env.junk_mailbox)
	)
	label = 'movemessagetotrash';

	this.set_alttext('delete', label);
	};

	// Initialize input element for list page jump
	this.init_pagejumper = function(element)
	{
	$(element).addClass('rcpagejumper')
	.on('focus', function(e) {
	// create and display popup with page selection
	var i, html = '';

	for (i = 1; i <= ref.env.pagecount; i++)
	html += '<li>' + i + '</li>';

	html = '<ul class="toolbarmenu menu">' + html + '</ul>';

	if (!ref.pagejump) {
	ref.pagejump = $('<div id="pagejump-selector" class="popupmenu"></div>')
	.appendTo(document.body)
	.on('click', 'li', function() {
	if (!ref.busy)
	$(element).val($(this).text()).change();
	});
	}

	if (ref.pagejump.data('count') != i)
	ref.pagejump.html(html);

	ref.pagejump.attr('rel', '#' + this.id).data('count', i);

	// display page selector
	ref.show_menu('pagejump-selector', true, e);
	$(this).keydown();
	})
	// keyboard navigation
	.on('keydown keyup click', function(e) {
	var current, selector = $('#pagejump-selector'),
	ul = $('ul', selector),
	list = $('li', ul),
	height = ul.height(),
	p = parseInt(this.value);

	if (e.which != 27 && e.which != 9 && e.which != 13 && !selector.is(':visible'))
	return ref.show_menu('pagejump-selector', true, e);

	if (e.type == 'keydown') {
	// arrow-down
	if (e.which == 40) {
	if (list.length > p)
	this.value = (p += 1);
	}
	// arrow-up
	else if (e.which == 38) {
	if (p > 1 && list.length > p - 1)
	this.value = (p -= 1);
	}
	// enter
	else if (e.which == 13) {
	return $(this).change();
	}
	// esc, tab
	else if (e.which == 27 \|\| e.which == 9) {
	ref.hide_menu('pagejump-selector', e);
	return $(element).val(ref.env.current_page);
	}
	}

	$('li.selected', ul).removeClass('selected');

	if ((current = $(list[p - 1])).length) {
	current.addClass('selected');
	$('#pagejump-selector').scrollTop(((ul.height() / list.length) * (p - 1)) - selector.height() / 2);
	}
	})
	.on('change', function(e) {
	// go to specified page
	var p = parseInt(this.value);
	if (p && p != ref.env.current_page && !ref.busy) {
	ref.hide_menu('pagejump-selector', e);
	ref.list_page(p);
	}
	});
	};

	// Update page-jumper state on list updates
	this.update_pagejumper = function()
	{
	$('input.rcpagejumper').val(this.env.current_page).prop('disabled', this.env.pagecount < 2);
	};

	// check for mailvelope API
	this.check_mailvelope = function(action)
	{
	if (window.mailvelope) {
	this.mailvelope_load(action);
	}
	else {
	$(window).on('mailvelope', function() {
	ref.mailvelope_load(action);
	});
	}
	};

	// Load Mailvelope functionality (and initialize keyring if needed)
	this.mailvelope_load = function(action)
	{
	var keyring = this.env.mailvelope_main_keyring ? undefined : this.env.user_id,
	fn = function(kr) {
	ref.mailvelope_keyring = kr;
	ref.mailvelope_init(action, kr);
	};

	mailvelope.getVersion().then(function(v) {
	mailvelope.VERSION = v;
	mailvelope.VERSION_MAJOR = Math.floor(parseFloat(v));
	return mailvelope.getKeyring(keyring);
	}).then(fn, function(err) {
	if (keyring) {
	// attempt to create a new keyring for this app/user
	mailvelope.createKeyring(keyring).then(fn, function(err) {
	console.error(err);
	});
	} else {
	console.error(err);
	}
	});
	};

	// Initializes Mailvelope editor or display container
	this.mailvelope_init = function(action, keyring)
	{
	if (!window.mailvelope)
	return;

	if (action == 'show' \|\| action == 'preview' \|\| action == 'print') {
	// decrypt text body
	if (this.env.is_pgp_content) {
	var data = $(this.env.is_pgp_content).text();
	ref.mailvelope_display_container(this.env.is_pgp_content, data, keyring);
	}
	// load pgp/mime message and pass it to the mailvelope display container
	else if (this.env.pgp_mime_part) {
	var msgid = this.display_message('loadingdata', 'loading'),
	selector = this.env.pgp_mime_container;

	$.ajax({
	type: 'GET',
	url: this.url('get', { '_mbox': this.env.mailbox, '_uid': this.env.uid, '_part': this.env.pgp_mime_part }),
	error: function(o, status, err) {
	ref.http_error(o, status, err, msgid);
	},
	success: function(data) {
	ref.mailvelope_display_container(selector, data, keyring, msgid);
	}
	});
	}
	}
	else if (action == 'compose') {
	this.env.compose_commands.push('compose-encrypted');

	var sign_supported = mailvelope.VERSION_MAJOR >= 2;
	var is_html = $('[name="_is_html"]').val() > 0;

	if (sign_supported)
	this.env.compose_commands.push('compose-encrypted-signed');

	if (this.env.pgp_mime_message) {
	// fetch PGP/Mime part and open load into Mailvelope editor
	var lock = this.set_busy(true, this.get_label('loadingdata'));

	$.ajax({
	type: 'GET',
	url: this.url('get', this.env.pgp_mime_message),
	error: function(o, status, err) {
	ref.http_error(o, status, err, lock);
	ref.enable_command('compose-encrypted', !is_html);
	if (sign_supported)
	ref.enable_command('compose-encrypted-signed', !is_html);
	},
	success: function(data) {
	ref.set_busy(false, null, lock);

	if (is_html) {
	ref.command('toggle-editor', {html: false, noconvert: true});
	$('#' + ref.env.composebody).val('');
	}

	ref.compose_encrypted({ quotedMail: data });
	ref.enable_command('compose-encrypted', true);
	ref.enable_command('compose-encrypted-signed', false);
	}
	});
	}
	else {
	// enable encrypted compose toggle
	this.enable_command('compose-encrypted', !is_html);
	if (sign_supported)
	this.enable_command('compose-encrypted-signed', !is_html);
	}

	// make sure to disable encryption button after toggling editor into HTML mode
	this.addEventListener('actionafter', function(args) {
	if (args.ret && args.action == 'toggle-editor') {
	ref.enable_command('compose-encrypted', !args.props.html);
	if (sign_supported)
	ref.enable_command('compose-encrypted-signed', !args.props.html);
	}
	});
	} else if (action == 'edit-identity') {
	ref.mailvelope_identity_keygen();
	}
	};

	// handler for the 'compose-encrypted-signed' command
	this.compose_encrypted_signed = function(props)
	{
	props = props \|\| {};
	props.signMsg = true;
	this.compose_encrypted(props);
	};

	// handler for the 'compose-encrypted' command
	this.compose_encrypted = function(props)
	{
	var options, container = $('#' + this.env.composebody).parent();

	// remove Mailvelope editor if active
	if (ref.mailvelope_editor) {
	ref.mailvelope_editor = null;
	ref.set_button('compose-encrypted', 'act');

	container.removeClass('mailvelope').find('iframe:not([aria-hidden=true])').remove();
	$('#' + ref.env.composebody).show();
	$("[name='_pgpmime']").remove();

	// re-enable commands that operate on the compose body
	ref.enable_command('toggle-editor', 'insert-response', 'save-response', true);
	ref.enable_command('spellcheck', !!window.googie);
	ref.enable_command('insert-sig', !!(ref.env.signatures && ref.env.identity && ref.env.signatures[ref.env.identity]));

	ref.triggerEvent('compose-encrypted', { active:false });
	}
	// embed Mailvelope editor container
	else {
	if (this.spellcheck_state())
	this.editor.spellcheck_stop();

	if (props.quotedMail) {
	options = { quotedMail: props.quotedMail, quotedMailIndent: false };
	}
	else {
	options = { predefinedText: $('#' + this.env.composebody).val() };
	}

	if (props.signMsg) {
	options.signMsg = props.signMsg;
	}

	if (this.env.compose_mode == 'reply') {
	options.quotedMailIndent = true;
	options.quotedMailHeader = this.env.compose_reply_header;
	}

	mailvelope.createEditorContainer('#' + container.attr('id'), ref.mailvelope_keyring, options).then(function(editor) {
	ref.mailvelope_editor = editor;
	ref.set_button('compose-encrypted', 'sel');

	container.addClass('mailvelope');
	$('#' + ref.env.composebody).hide();

	// disable commands that operate on the compose body
	ref.enable_command('spellcheck', 'insert-sig', 'toggle-editor', 'insert-response', 'save-response', false);
	ref.triggerEvent('compose-encrypted', { active:true });

	if (!$.isEmptyObject(ref.env.attachments)) {
	// notify user if losing attachments
	if (ref.env.compose_mode != 'draft'
	\|\| Object.keys(ref.env.attachments).length != 1
	\|\| ref.env.attachments[Object.keys(ref.env.attachments)[0]].name != 'encrypted.asc'
	) {
	ref.alert_dialog(ref.get_label('encryptnoattachments'));
	}

	$.each(ref.env.attachments, function(name, attach) {
	ref.remove_from_attachment_list(name);
	});
	}
	}, function(err) {
	console.error(err);
	console.log(options);
	});
	}
	};

	// callback to replace the message body with the full armored
	this.mailvelope_submit_messageform = function(draft, saveonly)
	{
	// get recipients
	var recipients = [];
	$.each(['to', 'cc', 'bcc'], function(i,field) {
	var pos, rcpt, val = $('[name="_' + field + '"]').val().trim();
	while (val.length && rcube_check_email(val, true)) {
	rcpt = RegExp.$2.replace(/^<+/, '').replace(/>+$/, '');
	recipients.push(rcpt);
	val = val.substr(val.indexOf(rcpt) + rcpt.length + 1).replace(/^\s,\s/, '');
	}
	});

	// check if we have keys for all recipients
	var isvalid = recipients.length > 0;
	ref.mailvelope_keyring.validKeyForAddress(recipients).then(function(status) {
	var missing_keys = [];
	$.each(status, function(k,v) {
	if (v === false) {
	isvalid = false;
	missing_keys.push(k);
	}
	});

	// list recipients with missing keys
	if (!isvalid && missing_keys.length) {
	// display dialog with missing keys
	ref.simple_dialog(
	ref.get_label('nopubkeyfor').replace('$email', missing_keys.join(', ')) +
	'<p>' + ref.get_label('searchpubkeyservers') + '</p>',
	'encryptedsendialog',
	function() {
	ref.mailvelope_search_pubkeys(missing_keys, function() {
	return true; // close dialog
	});
	},
	{button: 'search'}
	);
	return false;
	}

	if (!isvalid) {
	if (!recipients.length) {
	ref.alert_dialog(ref.get_label('norecipientwarning'), function() {
	$("[name='_to']").focus();
	});
	}
	return false;
	}

	// add sender identity to recipients to be able to decrypt our very own message
	var senders = [], selected_sender = ref.env.identities[$("[name='_from'] option:selected").val()];
	$.each(ref.env.identities, function(k, sender) {
	senders.push(sender.email);
	});

	ref.mailvelope_keyring.validKeyForAddress(senders).then(function(status) {
	valid_sender = null;
	$.each(status, function(k,v) {
	if (v !== false) {
	valid_sender = k;
	if (valid_sender == selected_sender) {
	return false; // break
	}
	}
	});

	if (!valid_sender) {
	if (!confirm(ref.get_label('nopubkeyforsender'))) {
	return false;
	}
	}

	recipients.push(valid_sender);

	ref.mailvelope_editor.encrypt(recipients).then(function(armored) {
	// all checks passed, send message
	var form = ref.gui_objects.messageform,
	hidden = $("[name='_pgpmime']", form),
	msgid = ref.set_busy(true, draft \|\| saveonly ? 'savingmessage' : 'sendingmessage');

	form.target = ref.get_save_target(msgid);
	form._draft.value = draft ? '1' : '';
	form.action = ref.add_url(form.action, '_unlock', msgid);
	form.action = ref.add_url(form.action, '_framed', 1);

	if (saveonly) {
	form.action = ref.add_url(form.action, '_saveonly', 1);
	}

	// send pgp content via hidden field
	if (!hidden.length) {
	hidden = $('<input type="hidden" name="_pgpmime">').appendTo(form);
	}
	hidden.val(armored);

	form.submit();

	}, function(err) {
	console.log(err);
	}); // mailvelope_editor.encrypt()

	}, function(err) {
	console.error(err);
	}); // mailvelope_keyring.validKeyForAddress(senders)

	}, function(err) {
	console.error(err);
	}); // mailvelope_keyring.validKeyForAddress(recipients)

	return false;
	};

	// wrapper for the mailvelope.createDisplayContainer API call
	this.mailvelope_display_container = function(selector, data, keyring, msgid)
	{
	var error_handler = function(error) {
	// remove mailvelope frame with the error message
	$(selector + ' > iframe').remove();
	ref.hide_message(msgid);
	ref.display_message(error.message, 'error');
	};

	mailvelope.createDisplayContainer(selector, data, keyring, { senderAddress: this.env.sender }).then(function(status) {
	if (status.error && status.error.message) {
	return error_handler(status.error);
	}

	ref.hide_message(msgid);
	$(selector).children().not('iframe').hide();
	$(ref.gui_objects.messagebody).addClass('mailvelope');

	// on success we can remove encrypted part from the attachments list
	if (ref.env.pgp_mime_part)
	$('#attach' + ref.env.pgp_mime_part).remove();

	setTimeout(function() { $(window).resize(); }, 10);
	}, error_handler);
	};

	// subroutine to query keyservers for public keys
	this.mailvelope_search_pubkeys = function(emails, resolve, import_handler)
	{
	// query with publickey.js
	var deferred = [],
	pk = new PublicKey(this.env.keyservers),
	lock = ref.display_message('', 'loading');

	$.each(emails, function(i, email) {
	var d = $.Deferred();
	pk.search(email, function(results, errorCode) {
	if (errorCode !== null) {
	// rejecting would make all fail
	// d.reject(email);
	d.resolve([email]);
	}
	else {
	d.resolve([email].concat(results));
	}
	});
	deferred.push(d);
	});

	$.when.apply($, deferred).then(function() {
	var missing_keys = [],
	key_selection = [];

	// analyze results of all queries
	$.each(arguments, function(i, result) {
	var email = result.shift();
	if (!result.length) {
	missing_keys.push(email);
	}
	else {
	key_selection = key_selection.concat(result);
	}
	});

	ref.hide_message(lock);
	resolve(true);

	// show key import dialog
	if (key_selection.length) {
	ref.mailvelope_key_import_dialog(key_selection, import_handler);
	}
	// some keys could not be found
	if (missing_keys.length) {
	ref.display_message(ref.get_label('nopubkeyfor').replace('$email', missing_keys.join(', ')), 'warning');
	}
	}).fail(function() {
	console.error('Pubkey lookup failed with', arguments);
	ref.hide_message(lock);
	ref.display_message('pubkeysearcherror', 'error');
	resolve(false);
	});
	};

	// list the given public keys in a dialog with options to import
	// them into the local Mailvelope keyring
	this.mailvelope_key_import_dialog = function(candidates, import_handler)
	{
	var ul = $('<div>').addClass('listing pgpkeyimport');

	$.each(candidates, function(i, keyrec) {
	var li = $('<div>').addClass('key');

	if (keyrec.revoked) li.addClass('revoked');
	if (keyrec.disabled) li.addClass('disabled');
	if (keyrec.expired) li.addClass('expired');

	li.append($('<label>').addClass('keyid').text(ref.get_label('keyid')));
	li.append($('<a>').text(keyrec.keyid.substr(-8).toUpperCase())
	.attr({href: keyrec.info, target: '_blank', tabindex: '-1'}));

	li.append($('<label>').addClass('keylen').text(ref.get_label('keylength')));
	li.append($('<span>').text(keyrec.keylen));

	if (keyrec.expirationdate) {
	li.append($('<label>').addClass('keyexpired').text(ref.get_label('keyexpired')));
	li.append($('<span>').text(new Date(keyrec.expirationdate * 1000).toDateString()));
	}

	if (keyrec.revoked) {
	li.append($('<span>').addClass('keyrevoked').text(ref.get_label('keyrevoked')));
	}

	var ul_ = $('<ul>').addClass('uids');
	$.each(keyrec.uids, function(j, uid) {
	var li_ = $('<li>').addClass('uid');
	if (uid.revoked) li_.addClass('revoked');
	if (uid.disabled) li_.addClass('disabled');
	if (uid.expired) li_.addClass('expired');

	ul_.append(li_.text(uid.uid));
	});

	li.append(ul_);
	li.append($('<button>')
	.attr('rel', keyrec.keyid)
	.text(ref.get_label('import'))
	.addClass('button import importkey')
	.prop('disabled', keyrec.revoked \|\| keyrec.disabled \|\| keyrec.expired));

	ul.append(li);
	});

	// display dialog with missing keys
	ref.simple_dialog(
	$('<div>')
	.append($('<p>').html(ref.get_label('encryptpubkeysfound')))
	.append(ul),
	ref.get_label('importpubkeys'),
	null,
	{cancel_label: 'close', cancel_button: 'close'}
	);

	// delegate handler for import button clicks
	ul.on('click', 'button.importkey', function() {
	var btn = $(this),
	keyid = btn.attr('rel'),
	pk = new PublicKey(ref.env.keyservers),
	lock = ref.display_message('', 'loading');

	// fetch from keyserver and import to Mailvelope keyring
	pk.get(keyid, function(armored, errorCode) {
	ref.hide_message(lock);

	if (errorCode) {
	ref.display_message('keyservererror', 'error');
	return;
	}

	if (import_handler) {
	import_handler(armored);
	return;
	}

	// import to keyring
	ref.mailvelope_keyring.importPublicKey(armored).then(function(status) {
	if (status === 'REJECTED') {
	// ref.alert_dialog(ref.get_label('Key import was rejected'));
	}
	else {
	var $key = keyid.substr(-8).toUpperCase();
	btn.closest('.key').fadeOut();
	ref.display_message(ref.get_label('keyimportsuccess').replace('$key', $key), 'confirmation');
	}
	}, function(err) {
	console.log(err);
	});
	});
	});
	};

	// enable key management for identity
	this.mailvelope_identity_keygen = function()
	{
	var container = $(this.gui_objects.editform).find('.identity-encryption').first();
	var identity_email = $(this.gui_objects.editform).find('.ff_email').val().trim();

	if (!container.length \|\| !identity_email \|\| !this.mailvelope_keyring.createKeyGenContainer)
	return;

	var key_fingerprint;
	this.mailvelope_keyring.validKeyForAddress([identity_email])
	.then(function(keys) {
	var private_keys = [];

	if (keys && keys[identity_email] && Array.isArray(keys[identity_email].keys)) {
	var checks = [];
	for (var j=0; j < keys[identity_email].keys.length; j++) {
	checks.push((function(key) {
	return ref.mailvelope_keyring.hasPrivateKey(key.fingerprint)
	.then(function(found) {
	if (found) {
	private_keys.push(key);
	}
	});
	})(keys[identity_email].keys[j]));
	}
	return Promise.all(checks)
	.then(function() {
	return private_keys;
	});
	}

	return private_keys;
	}).then(function(private_keys) {
	var content = container.find('.identity-encryption-block').empty();
	if (private_keys && private_keys.length) {
	// show private key information
	$('<p>').text(ref.get_label('encryptionprivkeysinmailvelope').replace('$nr', private_keys.length)).appendTo(content);
	var ul = $('<ul>').addClass('keylist').appendTo(content);
	$.each(private_keys, function(i, key) {
	$('<li>').appendTo(ul)
	.append($('<strong>').addClass('fingerprint').text(String(key.fingerprint).toUpperCase()))
	.append($('<span>').addClass('identity').text('<' + identity_email + '> '));
	});
	} else {
	$('<p>').text(ref.get_label('encryptionnoprivkeysinmailvelope')).appendTo(content);
	}

	// show button to create a new key
	$('<button>')
	.attr('type', 'button')
	.addClass('button create')
	.text(ref.get_label('encryptioncreatekey'))
	.appendTo(content)
	.on('click', function() { ref.mailvelope_show_keygen_container(content, identity_email); });
	$('<span>').addClass('space').html(' ').appendTo(content);
	$('<button>')
	.attr('type', 'button')
	.addClass('button settings')
	.text(ref.get_label('openmailvelopesettings'))
	.appendTo(content)
	.on('click', function() { ref.mailvelope_keyring.openSettings(); });

	container.show();
	ref.triggerEvent('identity-encryption-show', { container: container });
	})
	.catch(function(err) {
	console.error('Mailvelope keyring error', err);
	})
	};

	// start pgp key generation using Mailvelope
	this.mailvelope_show_keygen_container = function(container, identity_email)
	{
	var cid = new Date().getTime();
	var user_id = {email: identity_email, fullName: $(ref.gui_objects.editform).find('.ff_name').val().trim()};
	var options = {userIds: [user_id], keySize: this.env.mailvelope_keysize};

	$('<div>').attr('id', 'mailvelope-keygen-container-' + cid)
	.css({height: '245px', marginBottom: '10px'})
	.appendTo(container.empty());

	this.mailvelope_keyring.createKeyGenContainer('#mailvelope-keygen-container-' + cid, options)
	.then(function(generator) {
	if (generator instanceof Error) {
	throw generator;
	}

	// append button to start key generation
	$('<button>')
	.attr('type', 'button')
	.addClass('button mainaction generate')
	.text(ref.get_label('generate'))
	.appendTo(container)
	.on('click', function() {
	var btn = $(this).prop('disabled', true);
	generator.generate()
	.then(function(result) {
	if (typeof result === 'string' && result.indexOf('BEGIN PGP') > 0) {
	ref.display_message(ref.get_label('keypaircreatesuccess').replace('$identity', identity_email), 'confirmation');
	// reset keygen view
	ref.mailvelope_identity_keygen();
	}
	})
	.catch(function(err) {
	debugger;
	ref.display_message(err.message \|\| 'errortitle', 'error');
	btn.prop('disabled', false);
	});
	});

	$('<span>').addClass('space').html(' ').appendTo(container);

	$('<button>')
	.attr('type', 'button')
	.addClass('button cancel')
	.text(ref.get_label('cancel'))
	.appendTo(container)
	.on('click', function() { ref.mailvelope_identity_keygen(); });

	ref.triggerEvent('identity-encryption-update', { container: container });
	})
	.catch(function(err) {
	ref.display_message('errortitle', 'error');
	// start over
	ref.mailvelope_identity_keygen();
	});
	};

	this.mdn_request_dialog = function(uid, mailbox)
	{
	var props = {
	action: 'mark',
	data: { _uid: uid, _mbox: mailbox, _flag: 'mdnsent' }
	},
	buttons = [
	{
	text: this.get_label('send'),
	'class': 'mainaction send',
	click: function(e, ui, dialog) {
	props.action = 'sendmdn';
	(ref.is_framed() ? parent.$ : $)(dialog \|\| this).dialog('close');
	}
	},
	{
	text: this.get_label('ignore'),
	'class': 'cancel',
	click: function(e, ui, dialog) {
	(ref.is_framed() ? parent.$ : $)(dialog \|\| this).dialog('close');
	}
	}
	],
	mdn_func = function(event, ui) {
	ref.http_post(props.action, props.data);
	// from default close function
	$(this).remove();
	};

	if (this.env.mdn_request_save) {
	buttons.unshift({
	text: this.get_label('sendalwaysto').replace('$email', this.env.mdn_request_sender.mailto),
	'class': 'mainaction send',
	click: function(e, ui, dialog) {
	props.data._save = ref.env.mdn_request_save;
	props.data._address = ref.env.mdn_request_sender.string;
	$(e.target).next().click();
	}
	});
	}

	this.show_popup_dialog(this.get_label('mdnrequest'), this.get_label('sendreceipt'), buttons, { close: mdn_func });
	};


	/*********************************************************/
	/******* mailbox folders methods *******/
	/*********************************************************/

	this.expunge_mailbox = function(mbox)
	{
	var lock, post_data = {_mbox: mbox};

	// lock interface if it's the active mailbox
	if (mbox == this.env.mailbox) {
	lock = this.set_busy(true, 'loading');
	post_data._reload = 1;
	if (this.env.search_request)
	post_data._search = this.env.search_request;
	}

	// send request to server
	this.http_post('expunge', post_data, lock);
	};

	this.purge_mailbox = function(mbox)
	{
	this.confirm_dialog(this.get_label('purgefolderconfirm'), 'delete', function() {
	var lock, post_data = {_mbox: mbox};

	// lock interface if it's the active mailbox
	if (mbox == ref.env.mailbox) {
	lock = ref.set_busy(true, 'loading');
	post_data._reload = 1;
	}

	// send request to server
	ref.http_post('purge', post_data, lock);
	});

	return false;
	};

	// Mark all messages as read in:
	// - selected folder (mode=cur)
	// - selected folder and its subfolders (mode=sub)
	// - all folders (mode=all)
	this.mark_all_read = function(mbox, mode)
	{
	var state, content, nodes = [],
	list = this.message_list,
	folder = mbox \|\| this.env.mailbox,
	post_data = {_uid: '*', _flag: 'read', _mbox: folder, _folders: mode};

	if (typeof mode != 'string') {
	state = this.mark_all_read_state(folder);
	if (!state)
	return;

	if (state > 1) {
	// build content of the dialog
	$.each({cur: 1, sub: 2, all: 4}, function(i, v) {
	var id = 'readallmode' + i,
	label = $('<label>').attr('for', id).text(ref.get_label('folders-' + i)),
	input = $('<input>').attr({type: 'radio', value: i, name: 'mode', id: id, disabled: !(state & v)});

	nodes.push($('<li>').append([input, label]));
	});

	content = $('<ul class="proplist">').append(nodes);
	$('input:not([disabled])', content).first().attr('checked', true);

	this.simple_dialog(content, this.get_label('markallread'),
	function() {
	ref.mark_all_read(folder, $('input:checked', content).val());
	return true;
	},
	{button: 'mark', button_class: 'save'}
	);

	return;
	}

	post_data._folders = 'cur'; // only current folder has unread messages
	}

	// mark messages on the list
	$.each(list ? list.rows : [], function(uid, row) {
	if (!row.unread)
	return;

	var mbox = ref.env.messages[uid].mbox;
	if (mode == 'all' \|\| mbox == ref.env.mailbox
	\|\| (mode == 'sub' && mbox.startsWith(ref.env.mailbox + ref.env.delimiter))
	) {
	ref.set_message(uid, 'unread', false);
	}
	});

	// send the request
	this.http_post('mark', post_data, this.display_message('markingmessage', 'loading'));
	};

	// Enable/disable mark-all-read action depending on folders state
	this.mark_all_read_state = function(mbox)
	{
	var state = 0,
	li = this.treelist.get_item(mbox \|\| this.env.mailbox),
	folder_item = $(li).is('.unread') ? 1 : 0,
	subfolder_items = $('li.unread', li).length,
	all_items = $('li.unread', ref.gui_objects.folderlist).length;

	state += folder_item;
	state += subfolder_items ? 2 : 0;
	state += all_items > folder_item + subfolder_items ? 4 : 0;

	this.enable_command('mark-all-read', state > 0);

	return state;
	};

	// Display "bounce message" dialog
	this.bounce = function(props, obj, event)
	{
	// get message uid and folder
	var uid = this.get_single_uid(),
	url = this.url('bounce', {_framed: 1, _uid: uid, _mbox: this.get_message_mailbox(uid)}),
	dialog = $('<iframe>').attr('src', url),
	get_form = function() {
	var rc = $('iframe', dialog)[0].contentWindow.rcmail;
	return {rc: rc, form: rc.gui_objects.messageform};
	},
	post_func = function() {
	var post = {}, form = get_form();

	$.each($(form.form).serializeArray(), function() { post[this.name] = this.value; });

	post._uid = form.rc.env.uid;
	post._mbox = form.rc.env.mailbox;
	delete post._action;
	delete post._task;

	if (post._to \|\| post._cc \|\| post._bcc) {
	ref.http_post('bounce', post, ref.set_busy(true, 'sendingmessage'));
	dialog.dialog('close');
	}
	},
	submit_func = function() {
	var form = get_form();

	if (typeof form.form != 'object')
	return false;

	if (!form.rc.check_compose_address_fields(post_func, form.form))
	return false;

	return post_func();
	};

	this.hide_menu('forwardmenu', event);

	dialog = this.simple_dialog(dialog, this.gettext('bouncemsg'), submit_func, {
	button: 'bounce',
	width: 400,
	height: 300
	});

	return true;
	};


	/*********************************************************/
	/******* message compose methods *******/
	/*********************************************************/

	this.open_compose_step = function(p)
	{
	var url = this.url('mail/compose', p);

	// open new compose window
	if (this.env.compose_extwin && !this.env.extwin) {
	this.open_window(url);
	}
	else {
	this.redirect(url);
	if (this.env.extwin)
	window.resizeTo(Math.max(this.env.popup_width, $(window).width()), $(window).height() + 24);
	}
	};

	// init message compose form: set focus and eventhandlers
	this.init_messageform = function()
	{
	if (!this.gui_objects.messageform)
	return false;

	var elem, pos,
	input_from = $("[name='_from']"),
	input_to = $("[name='_to']"),
	input_subject = $("[name='_subject']"),
	input_message = $("[name='_message']").get(0),
	html_mode = $("[name='_is_html']").val() == '1',
	opener_rc = this.opener();

	// close compose step in opener
	if (opener_rc && opener_rc.env.action == 'compose') {
	setTimeout(function() {
	if (opener.history.length > 1)
	opener.history.back();
	else
	opener_rc.redirect(opener_rc.get_task_url('mail'));
	}, 100);
	this.env.opened_extwin = true;
	}

	if (!html_mode) {
	// On Back button Chrome will overwrite textarea with old content
	// causing e.g. the same signature is added twice (#5809)
	if (input_message.value && input_message.defaultValue !== undefined)
	input_message.value = input_message.defaultValue;

	pos = this.env.top_posting && this.env.compose_mode ? 0 : input_message.value.length;

	// add signature according to selected identity
	// if we have HTML editor, signature is added in a callback
	if (input_from.prop('type') == 'select-one') {
	// for some reason the caret initially is not at pos=0 in Firefox 51 (#5628)
	this.set_caret_pos(input_message, 0);
	this.change_identity(input_from[0]);
	}

	// set initial cursor position
	this.set_caret_pos(input_message, pos);

	// scroll to the bottom of the textarea (#1490114)
	if (pos) {
	$(input_message).scrollTop(input_message.scrollHeight);
	}
	}

	// check for locally stored compose data
	if (this.env.save_localstorage)
	this.compose_restore_dialog(0, html_mode)

	if (input_to.val() == '')
	elem = input_to;
	else if (input_subject.val() == '')
	elem = input_subject;
	else if (input_message)
	elem = input_message;

	this.env.compose_focus_elem = this.init_messageform_inputs(elem);

	// get summary of all field values
	this.compose_field_hash(true);

	// start the auto-save timer
	this.auto_save_start();
	};

	// init autocomplete events on compose form inputs
	this.init_messageform_inputs = function(focused)
	{
	var i,
	input_to = $("[name='_to']"),
	ac_fields = ['cc', 'bcc', 'replyto', 'followupto'];

	// init live search events
	this.init_address_input_events(input_to);
	for (i in ac_fields) {
	this.init_address_input_events($("[name='_"+ac_fields[i]+"']"));
	}

	if (!focused)
	focused = input_to;

	// focus first empty element (and return it)
	return $(focused).focus().get(0);
	};

	this.compose_restore_dialog = function(j, html_mode)
	{
	var i, key, formdata, index = this.local_storage_get_item('compose.index', []);

	var show_next = function(i) {
	if (++i < index.length)
	ref.compose_restore_dialog(i, html_mode)
	}

	for (i = j \|\| 0; i < index.length; i++) {
	key = index[i];
	formdata = this.local_storage_get_item('compose.' + key, null, true);
	if (!formdata) {
	continue;
	}
	// restore saved copy of current compose_id
	if (formdata.changed && key == this.env.compose_id) {
	this.restore_compose_form(key, html_mode);
	break;
	}
	// skip records from 'other' drafts
	if (this.env.draft_id && formdata.draft_id && formdata.draft_id != this.env.draft_id) {
	continue;
	}
	// skip records on reply
	if (this.env.reply_msgid && formdata.reply_msgid != this.env.reply_msgid) {
	continue;
	}
	// show dialog asking to restore the message
	if (formdata.changed && formdata.session != this.env.session_id) {
	this.show_popup_dialog(
	this.get_label('restoresavedcomposedata')
	.replace('$date', new Date(formdata.changed).toLocaleString())
	.replace('$subject', formdata._subject)
	.replace(/\n/g, '<br/>'),
	this.get_label('restoremessage'),
	[{
	text: this.get_label('restore'),
	'class': 'mainaction restore',
	click: function(){
	ref.restore_compose_form(key, html_mode);
	ref.remove_compose_data(key); // remove old copy
	ref.save_compose_form_local(); // save under current compose_id
	$(this).dialog('close');
	}
	},
	{
	text: this.get_label('delete'),
	'class': 'delete',
	click: function(){
	ref.remove_compose_data(key);
	$(this).dialog('close');
	show_next(i);
	}
	},
	{
	text: this.get_label('ignore'),
	'class': 'cancel',
	click: function(){
	$(this).dialog('close');
	show_next(i);
	}
	}]
	);
	break;
	}
	}
	}

	this.init_address_input_events = function(obj, props)
	{
	// configure parallel autocompletion
	if (!props && this.env.autocomplete_threads > 0) {
	props = {
	threads: this.env.autocomplete_threads,
	sources: this.env.autocomplete_sources
	};
	}

	obj.keydown(function(e) { return ref.ksearch_keydown(e, this, props); })
	.attr({autocomplete: 'off', 'aria-autocomplete': 'list', 'aria-expanded': 'false', role: 'combobox'});

	var callback = function(e) {
	if (ref.ksearch_pane && e.target === ref.ksearch_pane.get(0)) {
	return;
	}
	ref.ksearch_hide();
	};

	// hide the popup on any click
	$(document).on('click', callback);
	// and on scroll (that cannot be jQuery.on())
	document.addEventListener('scroll', callback, true);
	};

	this.submit_messageform = function(draft, saveonly)
	{
	var form = this.gui_objects.messageform;

	if (!form)
	return;

	// the message has been sent but not saved, ask the user what to do
	if (!saveonly && this.env.is_sent) {
	return this.simple_dialog(this.get_label('messageissent'), '', // TODO: dialog title
	function() {
	ref.submit_messageform(false, true);
	return true;
	}
	);
	}

	// delegate sending to Mailvelope routine
	if (this.mailvelope_editor) {
	return this.mailvelope_submit_messageform(draft, saveonly);
	}

	// all checks passed, send message
	var msgid = this.set_busy(true, draft \|\| saveonly ? 'savingmessage' : 'sendingmessage'),
	lang = this.spellcheck_lang(),
	files = [];

	// send files list
	$('li', this.gui_objects.attachmentlist).each(function() { files.push(this.id.replace(/^rcmfile/, '')); });
	$('[name="_attachments"]', form).val(files.join());

	form.target = this.get_save_target(msgid);
	form._draft.value = draft ? '1' : '';
	form.action = this.add_url(form.action, '_unlock', msgid);
	form.action = this.add_url(form.action, '_framed', 1);

	if (lang)
	form.action = this.add_url(form.action, '_lang', lang);
	if (saveonly)
	form.action = this.add_url(form.action, '_saveonly', 1);

	// register timer to notify about connection timeout
	this.submit_timer = setTimeout(function() {
	ref.set_busy(false, null, msgid);
	ref.display_message('requesttimedout', 'error');
	}, this.env.request_timeout * 1000);

	form.submit();
	};

	this.compose_recipient_select = function(list)
	{
	var id, n, recipients = 0, selection = list.get_selection();
	for (n=0; n < selection.length; n++) {
	id = selection[n];
	if (this.env.contactdata[id])
	recipients++;
	}
	this.enable_command('add-recipient', recipients);
	};

	this.compose_add_recipient = function(field)
	{
	// find last focused field name
	if (!field) {
	field = $(this.env.focused_field).filter(':visible');
	field = field.length ? field.attr('id').replace('_', '') : 'to';
	}

	var recipients = [], input = $('#_' + field), selection = this.contact_list.get_selection();

	if (this.contact_list && selection.length) {
	var data, name, n, id;
	for (n = 0; n < selection.length; n++) {
	if ((id = selection[n]) && (data = this.env.contactdata[id])) {
	- // We wrap the group name with invisible markers to prevent from problems with group expanding (#7569)
	- name = '\u200b' + (data.name \|\| data) + '\u200b';
	- recipients.push(name);
	+ name = data.name \|\| data

	// group is added, expand it
	if (id.charAt(0) == 'E' && input.length) {
	+ // We wrap the group name with invisible markers to prevent from problems with group expanding (#7569)
	+ name = '\u200b' + name + '\u200b';
	var gid = id.substr(1);
	this.group2expand[gid] = {name: name, input: input.get(0)};
	this.http_request('group-expand', {_source: data.source \|\| this.env.source, _gid: gid}, false);
	}
	+
	+ recipients.push(name);
	}
	}
	}

	if (recipients.length && input.length) {
	var oldval = input.val();
	if (oldval && !/[,;]\s*$/.test(oldval))
	oldval += ', ';
	input.val(oldval + recipients.join(', ') + ', ').change();
	this.triggerEvent('add-recipient', { field:field, recipients:recipients });
	}

	return recipients.length;
	};

	// checks the input fields before sending a message
	this.check_compose_input = function(cmd)
	{
	var key,
	input_subject = $("[name='_subject']");

	// check if all files has been uploaded
	for (key in this.env.attachments) {
	if (typeof this.env.attachments[key] === 'object' && !this.env.attachments[key].complete) {
	this.alert_dialog(this.get_label('notuploadedwarning'));
	return false;
	}
	}

	// display localized warning for missing subject
	if (!this.env.nosubject_warned && input_subject.val() == '') {
	var dialog,
	prompt_value = $('<input>').attr({type: 'text', size: 40, 'data-submit': 'true'}),
	myprompt = $('<div class="prompt">')
	.append($('<p class="message">').text(this.get_label('nosubjectwarning')))
	.append(prompt_value),
	save_func = function() {
	input_subject.val(prompt_value.val());
	dialog.dialog('close');
	if (ref.check_compose_input(cmd))
	ref.command(cmd, { nocheck:true }); // repeat command which triggered this
	};

	dialog = this.show_popup_dialog(
	myprompt,
	this.get_label('nosubjecttitle'),
	[{
	text: this.get_label('sendmessage'),
	'class': 'mainaction send',
	click: function() { save_func(); }
	}, {
	text: this.get_label('cancel'),
	'class': 'cancel',
	click: function() {
	input_subject.focus();
	dialog.dialog('close');
	}
	}],
	{dialogClass: 'warning'}
	);

	this.env.nosubject_warned = true;
	return false;
	}

	// check for empty body (only possible if not mailvelope encrypted)
	if (!this.mailvelope_editor && !this.editor.get_content() && !confirm(this.get_label('nobodywarning'))) {
	this.editor.focus();
	return false;
	}

	if (!this.check_compose_address_fields(cmd))
	return false;

	// move body from html editor to textarea (just to be sure, #1485860)
	this.editor.save();

	return true;
	};

	this.check_compose_address_fields = function(cmd, form)
	{
	if (!form)
	form = window.document;

	// check input fields
	var key, recipients, dialog,
	limit = this.env.max_disclosed_recipients,
	input_to = $("[name='_to']", form),
	input_cc = $("[name='_cc']", form),
	input_bcc = $("[name='_bcc']", form),
	input_from = $("[name='_from']", form),
	get_recipients = function(fields) {
	fields = $.map(fields, function(v) {
	v = v.val().trim();
	return v.length ? v : null;
	});
	return fields.join(',').replace(/^[\s,;]+/, '').replace(/[\s,;]+$/, '');
	};

	// check sender (if have no identities)
	if (input_from.prop('type') == 'text' && !rcube_check_email(input_from.val(), true)) {
	this.alert_dialog(this.get_label('nosenderwarning'), function() {
	input_from.focus();
	});
	return false;
	}

	// check for empty recipient
	if (!rcube_check_email(get_recipients([input_to, input_cc, input_bcc]), true)) {
	this.alert_dialog(this.get_label('norecipientwarning'), function() {
	input_to.focus();
	});
	return false;
	}

	// check disclosed recipients limit
	if (limit && !this.env.disclosed_recipients_warned
	&& rcube_check_email(recipients = get_recipients([input_to, input_cc]), true, true) > limit
	) {
	var save_func = function(move_to_bcc) {
	if (move_to_bcc) {
	var bcc = input_bcc.val();
	input_bcc.val((bcc ? (bcc + ', ') : '') + recipients).change();
	input_to.val('').change();
	input_cc.val('').change();
	}

	dialog.dialog('close');

	if (typeof cmd == 'function')
	cmd();
	else if (cmd)
	ref.command(cmd, { nocheck:true }); // repeat command which triggered this
	};

	dialog = this.show_popup_dialog(
	this.get_label('disclosedrecipwarning'),
	this.get_label('disclosedreciptitle'),
	[{
	text: this.get_label('sendmessage'),
	click: function() { save_func(false); },
	'class': 'mainaction'
	}, {
	text: this.get_label('bccinstead'),
	click: function() { save_func(true); }
	}, {
	text: this.get_label('cancel'),
	click: function() { dialog.dialog('close'); },
	'class': 'cancel'
	}],
	{dialogClass: 'warning'}
	);

	this.env.disclosed_recipients_warned = true;
	return false;
	}

	return true;
	};

	this.toggle_editor = function(props, obj, e)
	{
	// @todo: this should work also with many editors on page
	var mode, result = this.editor.toggle(props.html, props.noconvert \|\| false),
	control = $('#' + this.editor.id).data('control') \|\| $(e ? e.target : []);

	if (result)
	mode = props.html ? 'html' : 'plain';
	else
	mode = props.html ? 'plain' : 'html';

	// update internal format flag
	$("[name='_is_html']").val(mode == 'html' ? 1 : 0);

	if (control.is('[type=checkbox]'))
	control.prop('checked', mode == 'html');
	else
	control.val(mode);

	return result;
	};

	// Inserts a predefined response to the compose editor
	this.insert_response = function(key)
	{
	this.editor.replace(this.env.textresponses[key]);
	this.display_message('responseinserted', 'confirmation');
	};

	/**
	* Open the dialog to save a new canned response
	*/
	this.save_response = function()
	{
	// show dialog to enter a name and to modify the text to be saved
	var buttons = {}, text = this.editor.get_content({selection: true, format: 'text', nosig: true}),
	html = '<form class="propform">' +
	'<div class="prop block"><label for="ffresponsename">' + this.get_label('responsename') + '</label>' +
	'<input type="text" name="name" id="ffresponsename" size="40" /></div>' +
	'<div class="prop block"><label for="ffresponsetext">' + this.get_label('responsetext') + '</label>' +
	'<textarea name="text" id="ffresponsetext" cols="40" rows="8"></textarea></div>' +
	'</form>';

	buttons[this.get_label('save')] = function(e) {
	var name = $('#ffresponsename').val(),
	text = $('#ffresponsetext').val();

	if (!text) {
	$('#ffresponsetext').select();
	return false;
	}
	if (!name)
	name = text.replace(/[\r\n]+/g, ' ').substring(0,40);

	var lock = ref.display_message('savingresponse', 'loading');
	ref.http_post('settings/responses', { _insert:1, _name:name, _text:text }, lock);
	$(this).dialog('close');
	};

	buttons[this.get_label('cancel')] = function() {
	$(this).dialog('close');
	};

	this.show_popup_dialog(html, this.get_label('newresponse'), buttons, {button_classes: ['mainaction save', 'cancel']});

	$('#ffresponsetext').val(text);
	$('#ffresponsename').select();
	};

	this.add_response_item = function(response)
	{
	var key = response.key;
	this.env.textresponses[key] = response;

	// append to responses list
	if (this.gui_objects.responseslist) {
	var li = $('<li>').appendTo(this.gui_objects.responseslist);
	$('<a>').addClass('insertresponse active')
	.attr({href: '#', rel: key, tabindex: '0'})
	.html(this.quote_html(response.name))
	.appendTo(li)
	.mousedown(function(e) {
	return rcube_event.cancel(e);
	})
	.on('mouseup keypress', function(e) {
	if (e.type == 'mouseup' \|\| rcube_event.get_keycode(e) == 13) {
	ref.command('insert-response', $(this).attr('rel'));
	$(document.body).trigger('mouseup'); // hides the menu
	return rcube_event.cancel(e);
	}
	});

	// remove the placeholder item if its there
	$(this.gui_objects.responseslist).find('li > a.insertresponse.placeholder').parent().remove();
	}
	};

	this.edit_responses = function()
	{
	// TODO: implement inline editing of responses
	};

	this.delete_response = function(key)
	{
	if (!key && this.responses_list) {
	var selection = this.responses_list.get_selection();
	key = selection[0];
	}

	// submit delete request
	if (key) {
	this.confirm_dialog(this.get_label('deleteresponseconfirm'), 'delete', function() {
	ref.http_post('settings/delete-response', { _key: key }, false);
	});
	}
	};

	// updates spellchecker buttons on state change
	this.spellcheck_state = function()
	{
	var active = this.editor.spellcheck_state();

	$.each(this.buttons.spellcheck \|\| [], function(i, v) {
	$('#' + v.id)[active ? 'addClass' : 'removeClass']('selected');
	});

	return active;
	};

	// get selected language
	this.spellcheck_lang = function()
	{
	return this.editor.get_language();
	};

	this.spellcheck_lang_set = function(lang)
	{
	this.editor.set_language(lang);
	};

	// resume spellchecking, highlight provided misspellings without new ajax request
	this.spellcheck_resume = function(data)
	{
	this.editor.spellcheck_resume(data);
	};

	this.set_draft_id = function(id)
	{
	if (id && id != this.env.draft_id) {
	var filter = {task: 'mail', action: ''},
	rc = this.opener(false, filter) \|\| this.opener(true, filter);

	// refresh the drafts folder in the opener window
	if (rc && rc.env.mailbox == this.env.drafts_mailbox)
	rc.command('checkmail');

	this.env.draft_id = id;
	$("[name='_draft_saveid']").val(id);
	}

	// always remove local copy upon saving as draft
	this.remove_compose_data(this.env.compose_id);
	this.compose_skip_unsavedcheck = false;
	};

	// Create (attach) 'savetarget' iframe before use
	this.get_save_target = function(unlock)
	{
	// Removing the frame on load/error to workaround issues with window history
	this.dummy_iframe('savetarget', 'about:blank')
	.on('load error', function() {
	// catch invalid/error response from server and unlock the UI (#7494, #7488, #7522)
	if (unlock && $(this).contents().find('meta[name="generator"][content="Roundcube"]').length == 0) {
	ref.iframe_loaded(unlock);
	ref.display_message('connerror', 'error');
	}

	$(this).remove();
	});

	return 'savetarget';
	};

	this.auto_save_start = function()
	{
	if (this.env.draft_autosave) {
	this.save_timer = setTimeout(function() {
	ref.command("savedraft");
	}, this.env.draft_autosave * 1000);
	}

	// save compose form content to local storage every 5 seconds
	if (!this.local_save_timer && window.localStorage && this.env.save_localstorage) {
	// track typing activity and only save on changes
	this.compose_type_activity = this.compose_type_activity_last = 0;
	$(document).keypress(function(e) { ref.compose_type_activity++; });

	this.local_save_timer = setInterval(function(){
	if (ref.compose_type_activity > ref.compose_type_activity_last) {
	ref.save_compose_form_local();
	ref.compose_type_activity_last = ref.compose_type_activity;
	}
	}, 5000);

	$(window).on('unload', function() {
	// remove copy from local storage if compose screen is left after warning
	if (!ref.env.server_error)
	ref.remove_compose_data(ref.env.compose_id);
	});
	}

	// check for unsaved changes before leaving the compose page
	if (!window.onbeforeunload) {
	window.onbeforeunload = function() {
	if (!ref.compose_skip_unsavedcheck && ref.cmp_hash != ref.compose_field_hash()) {
	return ref.get_label('notsentwarning');
	}
	};
	}

	// Unlock interface now that saving is complete
	this.busy = false;
	};

	this.compose_field_hash = function(save)
	{
	// check input fields
	var i, id, val, str = '', hash_fields = ['to', 'cc', 'bcc', 'subject'];

	for (i=0; i<hash_fields.length; i++)
	if (val = $('[name="_' + hash_fields[i] + '"]').val())
	str += val + ':';

	str += this.editor.get_content({refresh: false});

	for (id in this.env.attachments)
	str += id;

	// we can't detect changes in the Mailvelope editor so assume it changed
	if (this.mailvelope_editor) {
	str += ';' + new Date().getTime();
	}

	if (save)
	this.cmp_hash = str;

	return str;
	};

	// store the contents of the compose form to localstorage
	this.save_compose_form_local = function()
	{
	// feature is disabled
	if (!this.env.save_localstorage)
	return;

	var formdata = { session:this.env.session_id, changed:new Date().getTime() },
	ed, empty = true;

	// get fresh content from editor
	this.editor.save();

	if (this.env.draft_id) {
	formdata.draft_id = this.env.draft_id;
	}
	if (this.env.reply_msgid) {
	formdata.reply_msgid = this.env.reply_msgid;
	}

	$('input, select, textarea', this.gui_objects.messageform).each(function(i, elem) {
	switch (elem.tagName.toLowerCase()) {
	case 'input':
	if (elem.type == 'button' \|\| elem.type == 'submit' \|\| (elem.type == 'hidden' && elem.name != '_is_html')) {
	break;
	}
	formdata[elem.name] = elem.type != 'checkbox' \|\| elem.checked ? $(elem).val() : '';

	if (formdata[elem.name] != '' && elem.type != 'hidden')
	empty = false;
	break;

	case 'select':
	formdata[elem.name] = $('option:checked', elem).val();
	break;

	default:
	formdata[elem.name] = $(elem).val();
	if (formdata[elem.name] != '')
	empty = false;
	}
	});

	if (!empty) {
	var index = this.local_storage_get_item('compose.index', []),
	key = this.env.compose_id;

	if ($.inArray(key, index) < 0) {
	index.push(key);
	}

	this.local_storage_set_item('compose.' + key, formdata, true);
	this.local_storage_set_item('compose.index', index);
	}
	};

	// write stored compose data back to form
	this.restore_compose_form = function(key, html_mode)
	{
	var ed, formdata = this.local_storage_get_item('compose.' + key, true);

	if (formdata && typeof formdata == 'object') {
	$.each(formdata, function(k, value) {
	if (k[0] == '_') {
	var elem = $("[name=" + k + "]");
	if (elem[0] && elem[0].type == 'checkbox') {
	elem.prop('checked', value != '');
	}
	else {
	elem.val(value).change();
	}
	}
	});

	// initialize HTML editor
	if ((formdata._is_html == '1' && !html_mode) \|\| (formdata._is_html != '1' && html_mode)) {
	this.command('toggle-editor', {id: this.env.composebody, html: !html_mode, noconvert: true});
	}
	}
	};

	// remove stored compose data from localStorage
	this.remove_compose_data = function(key)
	{
	var index = this.local_storage_get_item('compose.index', []);

	if ($.inArray(key, index) >= 0) {
	this.local_storage_remove_item('compose.' + key);
	this.local_storage_set_item('compose.index', $.grep(index, function(val,i) { return val != key; }));
	}
	};

	// clear all stored compose data of this user
	this.clear_compose_data = function()
	{
	var i, index = this.local_storage_get_item('compose.index', []);

	for (i=0; i < index.length; i++) {
	this.local_storage_remove_item('compose.' + index[i]);
	}

	this.local_storage_remove_item('compose.index');
	};

	this.change_identity = function(obj, show)
	{
	if (!obj \|\| !obj.options)
	return false;

	var id = $(obj).val(),
	got_sig = this.env.signatures && this.env.signatures[id],
	sig = this.env.identity,
	show_sig = show ? show : this.env.show_sig;

	// enable manual signature insert
	if (got_sig) {
	this.enable_command('insert-sig', true);
	this.env.compose_commands.push('insert-sig');
	got_sig = true;
	}
	else
	this.enable_command('insert-sig', false);

	// first function execution
	if (!this.env.identities_initialized) {
	this.env.identities_initialized = true;
	if (this.env.show_sig_later)
	this.env.show_sig = true;
	if (this.env.opened_extwin)
	return;
	}

	// update reply-to/bcc fields with addresses defined in identities
	$.each(['replyto', 'bcc'], function() {
	var rx, key = this,
	old_val = sig && ref.env.identities[sig] ? ref.env.identities[sig][key] : '',
	new_val = id && ref.env.identities[id] ? ref.env.identities[id][key] : '',
	input = $('[name="_'+key+'"]'), input_val = input.val();

	// remove old address(es)
	if (old_val && input_val) {
	rx = new RegExp('\\s' + RegExp.escape(old_val) + '\\s');
	input_val = input_val.replace(rx, '');
	}

	// cleanup
	input_val = String(input_val).replace(/[,;]\s*[,;]/g, ',').replace(/^[\s,;]+/, '');

	// add new address(es)
	if (new_val && input_val.indexOf(new_val) == -1 && input_val.indexOf(new_val.replace(/"/g, '')) == -1) {
	if (input_val) {
	input_val = input_val.replace(/[,;\s]+$/, '') + ', ';
	}

	input_val += new_val + ', ';
	}

	if (old_val \|\| new_val)
	input.val(input_val).change();
	});

	if (this.editor)
	this.editor.change_signature(id, show_sig);

	if (show && got_sig)
	this.display_message('siginserted', 'confirmation');

	this.env.identity = id;
	this.triggerEvent('change_identity');

	return true;
	};

	// Open file selection dialog for defined upload form
	// Works only on click and only with smart-upload forms
	this.upload_input = function(name)
	{
	$('#' + name + ' input[type="file"]').click();
	};

	// upload (attachment) file
	this.upload_file = function(form, action, lock)
	{
	if (form) {
	var fname, files = [];
	$('input', form).each(function() {
	if (this.files) {
	fname = this.name;
	for (var i=0; i < this.files.length; i++)
	files.push(this.files[i]);
	}
	});

	return this.file_upload(files, {_id: this.env.compose_id \|\| ''}, {
	name: fname,
	action: action,
	lock: lock
	});
	}
	};

	// add file name to attachment list
	// called from upload page
	this.add2attachment_list = function(name, att, upload_id)
	{
	if (upload_id)
	this.triggerEvent('fileuploaded', {name: name, attachment: att, id: upload_id});

	if (upload_id && this.env.attachments[upload_id])
	delete this.env.attachments[upload_id];

	this.env.attachments[name] = att;

	if (!this.gui_objects.attachmentlist)
	return false;

	var label, indicator, li = $('<li>');

	if (!att.complete && att.html.indexOf('<') < 0)
	att.html = '<span class="uploading">' + att.html + '</span>';

	if (!att.complete && this.env.loadingicon)
	att.html = '<img src="'+this.env.loadingicon+'" alt="" class="uploading" />' + att.html;

	if (!att.complete) {
	label = this.get_label('cancel');
	att.html = '<a title="'+label+'" onclick="return rcmail.cancel_attachment_upload(\''+name+'\');" href="#cancelupload" class="cancelupload">'
	+ (this.env.cancelicon ? '<img src="'+this.env.cancelicon+'" alt="'+label+'" />' : '<span class="inner">' + label + '</span>') + '</a>' + att.html;
	}

	li.attr('id', name).addClass(att.classname).html(att.html)
	.find('.attachment-name').on('mouseover', function() { rcube_webmail.long_subject_title_ex(this); });

	// replace indicator's li
	if (upload_id && (indicator = document.getElementById(upload_id))) {
	li.replaceAll(indicator);
	}
	else { // add new li
	li.appendTo(this.gui_objects.attachmentlist);
	}

	// set tabindex attribute
	var tabindex = $(this.gui_objects.attachmentlist).attr('data-tabindex') \|\| '0';
	li.find('a').attr('tabindex', tabindex);

	this.triggerEvent('fileappended', {name: name, attachment: att, id: upload_id, item: li});

	return true;
	};

	this.remove_from_attachment_list = function(name)
	{
	delete this.env.attachments[name];
	$('#'+name).remove();
	};

	this.remove_attachment = function(name)
	{
	if (name && this.env.attachments[name])
	this.http_post('remove-attachment', { _id:this.env.compose_id, _file:name });

	return false;
	};

	this.cancel_attachment_upload = function(name)
	{
	if (!name \|\| !this.uploads[name])
	return false;

	this.remove_from_attachment_list(name);
	this.uploads[name].abort();
	return false;
	};

	// rename uploaded attachment (in compose)
	this.rename_attachment = function(id)
	{
	var attachment = this.env.attachments[id];

	if (!attachment)
	return;

	var input = $('<input>').attr({type: 'text', size: 50}).val(attachment.name),
	content = $('<label>').text(this.get_label('namex')).append(input);

	this.simple_dialog(content, 'attachmentrename', function() {
	var name;
	if ((name = input.val()) && name != attachment.name) {
	ref.http_post('rename-attachment', {_id: ref.env.compose_id, _file: id, _name: name},
	ref.set_busy(true, 'loading'));
	return true;
	}
	}
	);
	};

	// update attachments list with the new name
	this.rename_attachment_handler = function(id, name)
	{
	var attachment = this.env.attachments[id];

	if (!attachment \|\| !name)
	return;

	attachment.name = name;

	$('#' + id + ' .attachment-name').text(name).attr('title', '');
	};

	// send remote request to add a new contact
	this.add_contact = function(value, reload)
	{
	if (value)
	this.http_post('addcontact', {_address: value, _reload: reload});
	};

	// send remote request to search mail or contacts
	this.qsearch = function(value)
	{
	// Note: Some plugins would like to do search without value,
	// so we keep value != '' check to allow that use-case. Which means
	// e.g. that qsearch() with no argument will execute the search.
	if (value != '' \|\| $(this.gui_objects.qsearchbox).val() \|\| $(this.gui_objects.search_interval).val()) {
	var r, lock = this.set_busy(true, 'searching'),
	url = this.search_params(value),
	action = this.env.action == 'compose' && this.contact_list ? 'search-contacts' : 'search';

	if (this.message_list)
	this.clear_message_list();
	else if (this.contact_list)
	this.list_contacts_clear();

	if (this.env.source)
	url._source = this.env.source;
	if (this.env.group)
	url._gid = this.env.group;

	// reset vars
	this.env.current_page = 1;

	r = this.http_request(action, url, lock);

	this.env.qsearch = {lock: lock, request: r};
	this.enable_command('set-listmode', this.env.threads && (this.env.search_scope \|\| 'base') == 'base');

	return true;
	}

	return false;
	};

	this.continue_search = function(request_id)
	{
	var lock = this.set_busy(true, 'stillsearching');

	setTimeout(function() {
	var url = ref.search_params();
	url._continue = request_id;
	ref.env.qsearch = { lock: lock, request: ref.http_request('search', url, lock) };
	}, 100);
	};

	// build URL params for search
	this.search_params = function(search, filter)
	{
	var n, url = {}, mods_arr = [],
	mods = this.env.search_mods,
	scope = this.env.search_scope \|\| 'base',
	mbox = this.env.mailbox;

	if (!filter && this.gui_objects.search_filter)
	filter = this.gui_objects.search_filter.value;

	if (!search && this.gui_objects.qsearchbox)
	search = this.gui_objects.qsearchbox.value;

	if (this.gui_objects.search_interval)
	url._interval = $(this.gui_objects.search_interval).val();

	if (search) {
	url._q = search;

	if (mods && this.message_list)
	mods = mods[mbox] \|\| mods['*'];

	if (mods) {
	for (n in mods)
	mods_arr.push(n);
	url._headers = mods_arr.join(',');
	}
	}

	url._layout = this.env.layout;
	url._filter = filter;
	url._scope = scope;
	url._mbox = mbox;

	return url;
	};

	// reset search filter
	this.reset_search_filter = function()
	{
	this.filter_disabled = true;
	if (this.gui_objects.search_filter)
	$(this.gui_objects.search_filter).val('ALL').change();
	this.filter_disabled = false;
	};

	// reset quick-search form
	this.reset_qsearch = function(all)
	{
	if (this.gui_objects.qsearchbox)
	this.gui_objects.qsearchbox.value = '';

	if (this.gui_objects.search_interval)
	$(this.gui_objects.search_interval).val('');

	if (this.env.qsearch)
	this.abort_request(this.env.qsearch);

	if (all) {
	this.env.search_scope = 'base';
	this.reset_search_filter();
	}

	this.env.qsearch = null;
	this.env.search_request = null;
	this.env.search_id = null;
	this.select_all_mode = false;

	this.enable_command('set-listmode', this.env.threads);
	};

	this.set_searchscope = function(scope)
	{
	this.env.search_scope = scope;
	};

	this.set_searchinterval = function(interval)
	{
	this.env.search_interval = interval;
	};

	this.set_searchmods = function(mods)
	{
	var mbox = this.env.mailbox,
	scope = this.env.search_scope \|\| 'base';

	if (!this.env.search_mods)
	this.env.search_mods = {};

	if (mbox)
	this.env.search_mods[mbox] = mods;
	};

	this.is_multifolder_listing = function()
	{
	return this.env.multifolder_listing !== undefined ? this.env.multifolder_listing :
	(this.env.search_request && (this.env.search_scope \|\| 'base') != 'base');
	};

	// action executed after mail is sent
	this.sent_successfully = function(type, msg, folders, save_error)
	{
	this.display_message(msg, type);
	this.compose_skip_unsavedcheck = true;

	if (this.env.extwin) {
	if (!save_error)
	this.lock_form(this.gui_objects.messageform);

	var filter = {task: 'mail', action: ''},
	rc = this.opener(false, filter) \|\| this.opener(true, filter);

	if (rc) {
	rc.display_message(msg, type);
	// refresh the folder where sent message was saved or replied message comes from
	if (folders && $.inArray(rc.env.mailbox, folders) >= 0) {
	rc.command('checkmail');
	}
	}

	if (!save_error)
	setTimeout(function() { window.close(); }, 1000);
	}
	else if (!save_error) {
	// before redirect we need to wait some time for Chrome (#1486177)
	setTimeout(function() { ref.list_mailbox(); }, 500);
	}

	if (save_error)
	this.env.is_sent = true;
	};

	this.image_rotate = function()
	{
	var curr = this.image_style ? (this.image_style.rotate \|\| 0) : 0;

	this.image_style.rotate = curr > 180 ? 0 : curr + 90;
	this.apply_image_style();
	};

	this.image_scale = function(prop)
	{
	var curr = this.image_style ? (this.image_style.scale \|\| 1) : 1;

	this.image_style.scale = Math.max(0.1, curr + 0.1 * (prop == '-' ? -1 : 1));
	this.apply_image_style();
	};

	this.apply_image_style = function()
	{
	var style = [],
	head = $(this.gui_objects.messagepartframe).contents().find('head');

	$('#image-style', head).remove();

	$.each({scale: '', rotate: 'deg'}, function(i, v) {
	var val = ref.image_style[i];
	if (val)
	style.push(i + '(' + val + v + ')');
	});

	if (style)
	head.append($('<style id="image-style">').text('img { transform: ' + style.join(' ') + '}'));
	};

	// Update import dialog state
	this.import_state_set = function(state)
	{
	if (this.import_dialog) {
	this.import_state = state;

	var button = $(this.import_dialog).parent().find('.ui-dialog-buttonset > button').first();

	if (state != 'error') {
	// replace Import/Cancel buttons with Close button
	button.hide();
	button.next().text(this.gettext('close')).focus();
	}
	else {
	// activate the Import button
	button.prop('disabled', false);
	}
	}
	};


	/*********************************************************/
	/******* keyboard live-search methods *******/
	/*********************************************************/

	// handler for keyboard events on address-fields
	this.ksearch_keydown = function(e, obj, props)
	{
	if (this.ksearch_timer)
	clearTimeout(this.ksearch_timer);

	var key = rcube_event.get_keycode(e);

	switch (key) {
	case 38: // arrow up
	case 40: // arrow down
	if (!this.ksearch_visible())
	return;

	var dir = key == 38 ? 1 : 0,
	highlight = this.ksearch_pane.find('li.selected')[0];

	if (!highlight)
	highlight = this.ksearch_pane.__ul.firstChild;

	if (highlight)
	this.ksearch_select(dir ? highlight.previousSibling : highlight.nextSibling);

	return rcube_event.cancel(e);

	case 9: // tab
	if (rcube_event.get_modifier(e) == SHIFT_KEY \|\| !this.ksearch_visible()) {
	this.ksearch_hide();
	return;
	}

	case 13: // enter
	if (!this.ksearch_visible())
	return false;

	// insert selected address and hide ksearch pane
	this.insert_recipient(this.ksearch_selected);
	this.ksearch_hide();

	// Don't cancel on Tab, we want to jump to the next field (#5659)
	return key == 9 ? null : rcube_event.cancel(e);

	case 27: // escape
	this.ksearch_hide();
	return;

	case 37: // left
	case 39: // right
	return;
	}

	// start timer
	this.ksearch_timer = setTimeout(function() { ref.ksearch_get_results(props); }, 200);
	this.ksearch_input = obj;

	return true;
	};

	this.ksearch_visible = function()
	{
	return this.ksearch_selected !== null && this.ksearch_selected !== undefined && this.ksearch_value;
	};

	this.ksearch_select = function(node)
	{
	if (this.ksearch_pane && node) {
	this.ksearch_pane.find('li.selected').removeClass('selected').removeAttr('aria-selected');
	}

	if (node) {
	$(node).addClass('selected').attr('aria-selected', 'true');
	this.ksearch_selected = node._rcm_id;
	$(this.ksearch_input).attr('aria-activedescendant', 'rcmkSearchItem' + this.ksearch_selected);
	}
	};

	this.insert_recipient = function(id)
	{
	if (id === null \|\| !this.env.contacts[id] \|\| !this.ksearch_input)
	return;

	var trigger = false, insert = '', delim = ', ',
	contact = this.env.contacts[id];

	this.ksearch_destroy();

	// insert all members of a group
	if (typeof contact === 'object' && contact.type == 'group' && !contact.email && contact.id) {
	// We wrap the group name with invisible markers to prevent from problems with group expanding (#7569)
	var name = '\u200b' + contact.name + '\u200b';
	insert = name + delim;
	this.group2expand[contact.id] = {name: name, input: this.ksearch_input};
	this.http_request('mail/group-expand', {_source: contact.source, _gid: contact.id}, false);
	}
	else if (typeof contact === 'object' && contact.name) {
	insert = contact.name + delim;
	trigger = true;
	}
	else if (typeof contact === 'string') {
	insert = contact + delim;
	trigger = true;
	}

	this.ksearch_input_replace(this.ksearch_value, insert, null, trigger);

	if (trigger) {
	this.triggerEvent('autocomplete_insert', {
	field: this.ksearch_input,
	insert: insert,
	data: contact,
	search: this.ksearch_value_last,
	result_type: 'person'
	});

	this.ksearch_value_last = null;
	this.compose_type_activity++;
	}
	};

	this.replace_group_recipients = function(id, recipients)
	{
	var data = this.group2expand[id];

	if (data) {
	this.ksearch_input_replace(data.name, recipients, data.input);

	this.triggerEvent('autocomplete_insert', {
	field: data.input,
	insert: recipients,
	data: data,
	search: this.ksearch_value_last,
	result_type: 'group'
	});

	this.ksearch_value_last = null;
	this.group2expand[id] = null;
	this.compose_type_activity++;
	}
	};

	// address search processor
	this.ksearch_get_results = function(props)
	{
	if (this.ksearch_pane && this.ksearch_pane.is(":visible"))
	this.ksearch_pane.hide();

	// get string from cursor position back to the last comma or semicolon
	var q = this.ksearch_input_get(),
	min = this.env.autocomplete_min_length,
	data = this.ksearch_data;

	// trim query string
	q = q.trim();

	// Don't (re-)search if the last results are still active
	if (q == this.ksearch_value)
	return;

	this.ksearch_destroy();

	if (q.length && q.length < min) {
	if (!this.ksearch_info) {
	this.ksearch_info = this.display_message(this.get_label('autocompletechars').replace('$min', min));
	}
	return;
	}

	var old_value = this.ksearch_value;
	this.ksearch_value = q;
	this.ksearch_value_last = q; // Group expansion clears ksearch_value before calling autocomplete_insert trigger, therefore store it in separate variable for later consumption.

	// ...string is empty
	if (!q.length)
	return;

	// ...new search value contains old one and previous search was not finished or its result was empty
	if (old_value && old_value.length && q.startsWith(old_value) && (!data \|\| data.num <= 0) && this.env.contacts && !this.env.contacts.length)
	return;

	var sources = props && props.sources ? props.sources : [''];
	var reqid = this.multi_thread_http_request({
	items: sources,
	threads: props && props.threads ? props.threads : 1,
	action: props && props.action ? props.action : 'mail/autocomplete',
	postdata: { _search:q, _source:'%s' },
	lock: this.display_message('searching', 'loading')
	});

	this.ksearch_data = { id:reqid, sources:sources.slice(), num:sources.length };
	};

	this.ksearch_query_results = function(results, search, reqid)
	{
	// trigger multi-thread http response callback
	this.multi_thread_http_response(results, reqid);

	// search stopped in meantime?
	if (!this.ksearch_value)
	return;

	// ignore this outdated search response
	if (this.ksearch_input && search != this.ksearch_value)
	return;

	// display search results
	var i, id, len, ul, text, type, init,
	is_framed = this.is_framed(),
	value = this.ksearch_value,
	maxlen = this.env.autocomplete_max ? this.env.autocomplete_max : 15;

	// create results pane if not present
	if (!this.ksearch_pane) {
	ul = $('<ul>');
	this.ksearch_pane = $('<div>')
	.attr({id: 'rcmKSearchpane', role: 'listbox', 'class': 'select-menu inline'})
	.css({position: 'absolute', 'z-index': 30000})
	.append(ul)
	.appendTo(is_framed ? parent.document.body : document.body);

	this.ksearch_pane.__ul = ul[0];
	this.triggerEvent('autocomplete_create', {obj: this.ksearch_pane});
	}

	ul = this.ksearch_pane.__ul;

	// remove all search results or add to existing list if parallel search
	if (reqid && this.ksearch_pane.data('reqid') == reqid) {
	maxlen -= ul.childNodes.length;
	}
	else {
	this.ksearch_pane.data('reqid', reqid);
	init = 1;
	// reset content
	ul.innerHTML = '';
	this.env.contacts = [];

	// Calculate the results pane position and size
	// Elastic: On small screen we use the width/position of the whole .ac-input element (input's parent)
	var is_composite_input = $('html').is('.layout-small,.layout-phone') && $(this.ksearch_input).parents('.ac-input').length == 1,
	input = is_composite_input ? $(this.ksearch_input).parents('.ac-input')[0] : $(this.ksearch_input)[0],
	pos = $(input).offset();

	// ... consider scroll position
	pos.left -= $(document.documentElement).scrollLeft();
	pos.top -= $(document.documentElement).scrollTop();

	// ... consider iframe position
	if (is_framed) {
	try {
	parent.$('iframe').each(function() {
	if (this.contentWindow == window) {
	var offset = $(this).offset();
	pos.left += offset.left;
	pos.top += offset.top;
	}
	});
	}
	catch(e) {}
	}

	var w = $(is_framed ? parent : window).width(),
	input_width = $(input).outerWidth(),
	left = w - pos.left > 200 ? pos.left : w - 200,
	top = (pos.top + input.offsetHeight + 1),
	width = Math.min(400, w - left);

	this.ksearch_pane.css({
	left: (is_composite_input ? pos.left : left) + 'px',
	top: top + 'px',
	maxWidth: (is_composite_input ? input_width : width) + 'px',
	minWidth: '200px',
	width: is_composite_input ? (input_width + 'px') : 'auto',
	display: 'none'
	});
	}

	// add each result line to list
	if (results && (len = results.length)) {
	for (i=0; i < len && maxlen > 0; i++) {
	text = typeof results[i] === 'object' ? (results[i].display \|\| results[i].name) : results[i];
	type = typeof results[i] === 'object' ? results[i].type : '';
	id = i + this.env.contacts.length;
	$('<li>').attr({id: 'rcmkSearchItem' + id, role: 'option'})
	.html('<i class="icon"></i>' + this.quote_html(text.replace(new RegExp('('+RegExp.escape(value)+')', 'ig'), '##$1%%')).replace(/##([^%]+)%%/g, '<b>$1</b>'))
	.addClass(type \|\| '')
	.appendTo(ul)
	.mouseover(function() { ref.ksearch_select(this); })
	.mouseup(function() { ref.ksearch_click(this); })
	.get(0)._rcm_id = id;
	maxlen -= 1;
	}
	}

	if (ul.childNodes.length) {
	// set the right aria-* attributes to the input field
	$(this.ksearch_input)
	.attr({'aria-haspopup': 'true', 'aria-expanded': 'true', 'aria-owns': 'rcmKSearchpane'});

	this.ksearch_pane.show();

	// select the first
	if (!this.env.contacts.length) {
	this.ksearch_select($('li', ul)[0]);
	}
	}

	if (len)
	this.env.contacts = this.env.contacts.concat(results);

	if (this.ksearch_data.id == reqid)
	this.ksearch_data.num--;
	};

	// Getter for input value
	// returns a string from the last comma to current cursor position
	this.ksearch_input_get = function()
	{
	if (!this.ksearch_input)
	return '';

	var cp = this.get_caret_pos(this.ksearch_input);

	return this.ksearch_input.value.substr(0, cp).split(/[,;]/).pop();
	};

	// Setter for input value
	// replaces 'from' string with 'to' and sets cursor position at the end
	this.ksearch_input_replace = function(from, to, input, trigger)
	{
	if (!this.ksearch_input && !input)
	return;

	if (!input)
	input = this.ksearch_input;

	var cpos = this.get_caret_pos(input),
	p = input.value.lastIndexOf(from, cpos),
	pre = input.value.substring(0, p),
	end = input.value.substring(p + from.length, input.value.length);

	input.value = pre + to + end;

	// set caret to insert pos
	this.set_caret_pos(input, cpos + to.length - from.length);

	// run onchange action on the element
	$(input).trigger('change', [true, trigger]);
	};

	this.ksearch_click = function(node)
	{
	if (this.ksearch_input)
	this.ksearch_input.focus();

	this.insert_recipient(node._rcm_id);
	this.ksearch_hide();
	};

	this.ksearch_blur = function()
	{
	if (this.ksearch_timer)
	clearTimeout(this.ksearch_timer);

	this.ksearch_input = null;
	this.ksearch_hide();
	};

	this.ksearch_hide = function()
	{
	this.ksearch_selected = null;
	this.ksearch_value = '';

	if (this.ksearch_pane)
	this.ksearch_pane.hide();

	$(this.ksearch_input)
	.attr({'aria-haspopup': 'false', 'aria-expanded': 'false'})
	.removeAttr('aria-activedescendant')
	.removeAttr('aria-owns');

	this.ksearch_destroy();
	};

	// Clears autocomplete data/requests
	this.ksearch_destroy = function()
	{
	if (this.ksearch_data)
	this.multi_thread_request_abort(this.ksearch_data.id);

	if (this.ksearch_info)
	this.hide_message(this.ksearch_info);

	if (this.ksearch_msg)
	this.hide_message(this.ksearch_msg);

	this.ksearch_data = null;
	this.ksearch_info = null;
	this.ksearch_msg = null;
	};


	/*********************************************************/
	/******* address book methods *******/
	/*********************************************************/

	this.contactlist_select = function(list)
	{
	if (this.preview_timer)
	clearTimeout(this.preview_timer);

	var id, targets,
	groupcount = 0,
	writable = false,
	deletable = false,
	copy_writable = false,
	selected = list.get_selection().length,
	source = this.env.source ? this.env.address_sources[this.env.source] : null;

	// we don't have dblclick handler here, so use 50 instead of this.dblclick_time
	if (this.env.contentframe && !list.multi_selecting && (id = list.get_single_selection()))
	this.preview_timer = setTimeout(function() { ref.load_contact(id, 'show'); }, this.preview_delay_click);
	else if (this.env.contentframe)
	this.show_contentframe(false);

	if (selected) {
	list.draggable = false;

	// no source = search result, we'll need to detect if any of
	// selected contacts are in writable addressbook to enable edit/delete
	// we'll also need to know sources used in selection for copy
	// and group-addmember operations (drag&drop)
	this.env.selection_sources = [];

	if (source) {
	this.env.selection_sources.push(this.env.source);
	}

	$.each(list.get_selection(), function(i, v) {
	var book, sid, contact = list.data[v];
	if (!source) {
	sid = String(v).replace(/^[^-]+-/, '');
	book = sid ? ref.env.address_sources[sid] : null;

	if (book) {
	writable = writable \|\| (!book.readonly && !contact.readonly);
	deletable = deletable \|\| book.deletable === true;
	ref.env.selection_sources.push(sid);
	}
	}
	else {
	writable = writable \|\| (!source.readonly && !contact.readonly);
	deletable = deletable \|\| source.deletable === true;
	}

	if (contact._type != 'group')
	list.draggable = true;
	});

	this.env.selection_sources = $.unique(this.env.selection_sources);

	if (source && source.groups)
	$.each(this.env.contactgroups, function() { if (this.source === ref.env.source) groupcount++; });

	targets = $.map(this.env.address_sources, function(v, i) { return v.readonly ? null : i; });
	copy_writable = $.grep(targets, function(v) { return jQuery.inArray(v, ref.env.selection_sources) < 0; }).length > 0;
	}

	// if a group is currently selected, and there is at least one contact selected
	// we can enable the group-remove-selected command
	this.enable_command('group-assign-selected', groupcount > 0 && writable);
	this.enable_command('group-remove-selected', this.env.group && writable);
	this.enable_command('print', 'qrcode', selected == 1);
	this.enable_command('export-selected', selected > 0);
	this.enable_command('edit', id && writable);
	this.enable_command('delete', 'move', writable \|\| deletable);
	this.enable_command('copy', copy_writable);

	return false;
	};

	this.list_contacts = function(src, group, page, search)
	{
	var win, folder, index = -1, url = {},
	refresh = src === undefined && group === undefined && page === undefined,
	target = window;

	if (!src)
	src = this.env.source;

	if (refresh)
	group = this.env.group;

	if (src != this.env.source) {
	page = this.env.current_page = 1;
	this.reset_qsearch();
	}
	else if (!refresh && group != this.env.group)
	page = this.env.current_page = 1;

	if (this.env.search_id)
	folder = 'S'+this.env.search_id;
	else if (!this.env.search_request)
	folder = group ? 'G'+src+group : src;

	this.env.source = src;
	this.env.group = group;

	// truncate groups listing stack
	$.each(this.env.address_group_stack, function(i, v) {
	if (ref.env.group == v.id) {
	index = i;
	return false;
	}
	});

	this.env.address_group_stack = index < 0 ? [] : this.env.address_group_stack.slice(0, index);

	// remove cached contact group selector
	this.destroy_entity_selector('contactgroup-selector');

	// make sure the current group is on top of the stack
	if (this.env.group) {
	if (!search) search = {};
	search.id = this.env.group;
	this.env.address_group_stack.push(search);

	// mark the first group on the stack as selected in the directory list
	folder = 'G'+src+this.env.address_group_stack[0].id;
	}
	else if (this.gui_objects.addresslist_title) {
	$(this.gui_objects.addresslist_title).text(this.get_label('contacts'));
	}

	if (!this.env.search_id)
	this.select_folder(folder, '', true);

	// load contacts remotely
	if (this.gui_objects.contactslist) {
	this.list_contacts_remote(src, group, page);
	return;
	}

	if (win = this.get_frame_window(this.env.contentframe)) {
	target = win;
	url._framed = 1;
	}

	if (group)
	url._gid = group;
	if (page)
	url._page = page;
	if (src)
	url._source = src;

	// also send search request to get the correct listing
	if (this.env.search_request)
	url._search = this.env.search_request;

	this.set_busy(true, 'loading');
	this.location_href(url, target);
	};

	// send remote request to load contacts list
	this.list_contacts_remote = function(src, group, page)
	{
	// clear message list first
	this.list_contacts_clear();

	// send request to server
	var url = {}, lock = this.set_busy(true, 'loading');

	if (src)
	url._source = src;
	if (page)
	url._page = page;
	if (group)
	url._gid = group;

	this.env.source = src;
	this.env.group = group;

	// also send search request to get the right records
	if (this.env.search_request)
	url._search = this.env.search_request;

	this.http_request(this.env.task == 'mail' ? 'list-contacts' : 'list', url, lock);

	if (this.env.task != 'mail')
	this.update_state({_source: src, _page: page && page > 1 ? page : null, _gid: group});
	};

	this.list_contacts_clear = function()
	{
	this.contact_list.data = {};
	this.contact_list.clear(true);
	this.show_contentframe(false);
	this.enable_command('delete', 'move', 'copy', 'print', false);
	};

	this.set_group_prop = function(prop)
	{
	if (this.gui_objects.addresslist_title) {
	var boxtitle = $(this.gui_objects.addresslist_title).html(''); // clear contents

	// add link to pop back to parent group
	if (this.env.address_group_stack.length > 1
	\|\| (this.env.address_group_stack.length == 1 && this.env.address_group_stack[0].search_request)
	) {
	var link = $('<a href="#list">...</a>')
	.attr({title: this.get_label('uponelevel'), 'class': 'poplink'})
	.click(function() { return ref.command('popgroup', '', this); });

	boxtitle.append(link).append(' » ');
	}

	boxtitle.append($('<span>').text(prop ? prop.name : this.get_label('contacts')));
	}
	};

	// load contact record
	this.load_contact = function(cid, action, framed)
	{
	var win, url = {}, target = window,
	rec = this.contact_list ? this.contact_list.data[cid] : null;

	if (win = this.get_frame_window(this.env.contentframe)) {
	url._framed = 1;
	target = win;
	this.show_contentframe(true);

	// load dummy content, unselect selected row(s)
	if (!cid)
	this.contact_list.clear_selection();

	this.enable_command('export-selected', 'print', rec && rec._type != 'group');
	}
	else if (framed)
	return false;

	if (action && (cid \|\| action == 'add') && !this.drag_active) {
	if (this.env.group)
	url._gid = this.env.group;

	if (this.env.search_request)
	url._search = this.env.search_request;

	if (cid)
	url._cid = this.preview_id = cid;

	url._action = action;
	url._source = this.env.source;

	this.location_href(url, target, true);
	}

	return true;
	};

	// add/delete member to/from the group
	this.group_member_change = function(what, cid, source, gid)
	{
	if (what != 'add')
	what = 'del';

	var lock = this.display_message(what == 'add' ? 'addingmember' : 'removingmember', 'loading'),
	post_data = {_cid: cid, _source: source, _gid: gid};

	this.http_post('group-'+what+'members', post_data, lock);
	};

	this.contacts_drag_menu = function(e, to)
	{
	var dest = to.type == 'group' ? to.source : to.id,
	source = this.env.source;

	if (!this.env.address_sources[dest] \|\| this.env.address_sources[dest].readonly)
	return true;

	// search result may contain contacts from many sources, but if there is only one...
	if (source == '' && this.env.selection_sources.length == 1)
	source = this.env.selection_sources[0];

	if (to.type == 'group' && dest == source) {
	var cid = this.contact_list.get_selection().join(',');
	this.group_member_change('add', cid, dest, to.id);
	return true;
	}
	// move action is not possible, "redirect" to copy if menu wasn't requested
	else if (!this.commands.move && rcube_event.get_modifier(e) != SHIFT_KEY) {
	this.copy_contacts(to);
	return true;
	}

	return this.drag_menu(e, to);
	};

	// copy contact(s) to the specified target (group or directory)
	this.copy_contacts = function(to, event, cid)
	{
	if (!to) {
	cid = this.contact_list.get_selection();
	return this.addressbook_selector(event, function(to, obj) {
	var to = $(obj).data('source') ? ref.env.contactgroups['G' + $(obj).data('source') + $(obj).data('gid')] : ref.env.address_sources[to];
	ref.copy_contacts(to, null, cid);
	});
	}

	var dest = to.type == 'group' ? to.source : to.id,
	source = this.env.source,
	group = this.env.group ? this.env.group : '';

	cid = cid ? cid.join(',') : this.contact_list.get_selection().join(',');

	if (!cid \|\| !this.env.address_sources[dest] \|\| this.env.address_sources[dest].readonly)
	return;

	// search result may contain contacts from many sources, but if there is only one...
	if (source == '' && this.env.selection_sources.length == 1)
	source = this.env.selection_sources[0];

	// target is a group
	if (to.type == 'group') {
	if (dest == source)
	return;

	var lock = this.display_message('copyingcontact', 'loading'),
	post_data = {_cid: cid, _source: this.env.source, _to: dest, _togid: to.id, _gid: group};

	this.http_post('copy', post_data, lock);
	}
	// target is an addressbook
	else if (to.id != source) {
	var lock = this.display_message('copyingcontact', 'loading'),
	post_data = {_cid: cid, _source: this.env.source, _to: to.id, _gid: group};

	this.http_post('copy', post_data, lock);
	}
	};

	// move contact(s) to the specified target (group or directory)
	this.move_contacts = function(to, event, cid)
	{
	if (!to) {
	cid = this.contact_list.get_selection();
	return this.addressbook_selector(event, function(to, obj) {
	var to = $(obj).data('source') ? ref.env.contactgroups['G' + $(obj).data('source') + $(obj).data('gid')] : ref.env.address_sources[to];
	ref.move_contacts(to, null, cid);
	});
	}

	var dest = to.type == 'group' ? to.source : to.id,
	source = this.env.source,
	group = this.env.group ? this.env.group : '';

	if (!this.env.address_sources[dest] \|\| this.env.address_sources[dest].readonly)
	return;

	if (!cid)
	cid = this.contact_list.get_selection();

	// search result may contain contacts from many sources, but if there is only one...
	if (source == '' && this.env.selection_sources.length == 1)
	source = this.env.selection_sources[0];

	if (to.type == 'group') {
	if (dest == source)
	return;

	this._with_selected_contacts('move', {_to: dest, _togid: to.id, _cid: cid});
	}
	// target is an addressbook
	else if (to.id != source)
	this._with_selected_contacts('move', {_to: to.id, _cid: cid});
	};

	// delete contact(s)
	this.delete_contacts = function()
	{
	var undelete = this.env.source && this.env.address_sources[this.env.source].undelete;

	if (undelete) {
	this._with_selected_contacts('delete', {_cid: this.contact_list.get_selection()});
	}
	else {
	var cid = this.contact_list.get_selection();
	this.confirm_dialog(this.get_label('deletecontactconfirm'), 'delete', function() {
	ref._with_selected_contacts('delete', {_cid: cid});
	});
	}
	};

	this._with_selected_contacts = function(action, post_data)
	{
	var selection = post_data._cid;

	// exit if no contact specified or if selection is empty
	if (!selection.length && !this.env.cid)
	return;

	var n, a_cids = [],
	label = action == 'delete' ? 'contactdeleting' : 'movingcontact',
	lock = this.display_message(label, 'loading'),
	display_next = this.check_display_next();

	if (this.env.cid)
	a_cids.push(this.env.cid);
	else {
	for (n=0; n<selection.length; n++) {
	id = selection[n];
	a_cids.push(id);
	this.contact_list.remove_row(id, display_next && n == selection.length-1);
	}

	if (!display_next)
	this.contact_list.clear_selection();
	}

	if (!post_data)
	post_data = {};

	post_data._source = this.env.source;
	post_data._from = this.env.action;
	post_data._cid = a_cids.join(',');

	if (this.env.group)
	post_data._gid = this.env.group;

	// also send search request to get the right records from the next page
	if (this.env.search_request)
	post_data._search = this.env.search_request;

	// send request to server
	this.http_post(action, post_data, lock)

	return true;
	};

	// update a contact record in the list
	this.update_contact_row = function(cid, cols_arr, newcid, source, data)
	{
	var list = this.contact_list;

	cid = this.html_identifier(cid);

	// when in searching mode, concat cid with the source name
	if (!list.rows[cid]) {
	cid = cid + '-' + source;
	if (newcid)
	newcid = newcid + '-' + source;
	}

	list.update_row(cid, cols_arr, newcid, true);
	list.data[cid] = data;
	};

	// add row to contacts list
	this.add_contact_row = function(cid, cols, classes, data)
	{
	if (!this.gui_objects.contactslist)
	return false;

	var c, col, list = this.contact_list,
	row = { cols:[] };

	row.id = 'rcmrow' + this.html_identifier(cid);
	row.className = 'contact ' + (classes \|\| '');

	if (list.in_selection(cid))
	row.className += ' selected';

	// add each submitted col
	for (c in cols) {
	col = {};
	col.className = String(c).toLowerCase();
	col.innerHTML = cols[c];
	row.cols.push(col);
	}

	// store data in list member
	list.data[cid] = data;
	list.insert_row(row);

	this.enable_command('export', list.rowcount > 0);
	};

	this.init_contact_form = function()
	{
	var col;

	if (this.env.coltypes) {
	this.set_photo_actions($('#ff_photo').val());
	for (col in this.env.coltypes)
	this.init_edit_field(col, null);
	}

	$('.contactfieldgroup .row a.deletebutton').click(function() {
	ref.delete_edit_field(this);
	return false;
	});

	$('select.addfieldmenu').change(function() {
	ref.insert_edit_field($(this).val(), $(this).attr('rel'), this);
	this.selectedIndex = 0;
	});

	// enable date pickers on date fields
	if ($.datepicker && this.env.date_format) {
	$.datepicker.setDefaults({
	dateFormat: this.env.date_format,
	changeMonth: true,
	changeYear: true,
	yearRange: '-120:+10',
	showOtherMonths: true,
	selectOtherMonths: true
	});
	$('input.datepicker').datepicker();
	}

	// Submit search form on Enter
	if (this.env.action == 'search')
	$(this.gui_objects.editform).append($('<input type="submit">').hide())
	.submit(function() { $('input.mainaction').click(); return false; });
	};

	// group creation dialog
	this.group_create = function()
	{
	var input = $('<input>').attr({type: 'text', 'data-submit': 'true'}),
	content = $('<label>').text(this.get_label('namex')).append(input),
	source = this.env.source;

	this.simple_dialog(content, 'newgroup', function() {
	var name;
	if (name = input.val()) {
	ref.http_post('group-create', {_source: source, _name: name},
	ref.set_busy(true, 'loading'));
	return true;
	}
	});
	};

	// group rename dialog
	this.group_rename = function()
	{
	if (!this.env.group)
	return;

	var group_name = this.env.contactgroups['G' + this.env.source + this.env.group].name,
	input = $('<input>').attr({type: 'text', 'data-submit': 'true'}).val(group_name),
	content = $('<label>').text(this.get_label('namex')).append(input),
	source = this.env.source,
	group = this.env.group;

	this.simple_dialog(content, 'grouprename', function() {
	var name;
	if ((name = input.val()) && name != group_name) {
	ref.http_post('group-rename', {_source: source, _gid: group, _name: name},
	ref.set_busy(true, 'loading'));
	return true;
	}
	});
	};

	this.group_delete = function()
	{
	if (this.env.group) {
	var group = this.env.group;
	this.confirm_dialog(this.get_label('deletegroupconfirm'), 'delete', function() {
	var lock = ref.set_busy(true, 'groupdeleting');
	ref.http_post('group-delete', {_source: ref.env.source, _gid: group}, lock);
	});
	}
	};

	// callback from server upon group-delete command
	this.remove_group_item = function(prop)
	{
	var key = 'G' + prop.source + prop.id;

	if (this.treelist.remove(key)) {
	// make sure there is no cached address book or contact group selectors
	this.destroy_entity_selector('addressbook-selector');
	this.destroy_entity_selector('contactgroup-selector');

	this.triggerEvent('group_delete', { source:prop.source, id:prop.id });
	delete this.env.contactfolders[key];
	delete this.env.contactgroups[key];
	}

	if (prop.source == this.env.source && prop.id == this.env.group)
	this.list_contacts(prop.source, 0);
	};

	//assign selected contacts to a group
	this.group_assign_selected = function(props, obj, event)
	{
	var cid = ref.contact_list.get_selection();
	var source = ref.env.source;
	this.contactgroup_selector(event, function(to) { ref.group_member_change('add', cid, source, to); });
	};

	//remove selected contacts from current active group
	this.group_remove_selected = function()
	{
	this.http_post('group-delmembers', {_cid: this.contact_list.get_selection(),
	_source: this.env.source, _gid: this.env.group});
	};

	//callback after deleting contact(s) from current group
	this.remove_group_contacts = function(props)
	{
	if (this.env.group !== undefined && (this.env.group === props.gid)) {
	var n, selection = this.contact_list.get_selection(),
	display_next= this.check_display_next();

	for (n=0; n<selection.length; n++) {
	id = selection[n];
	this.contact_list.remove_row(id, display_next && n == selection.length-1);
	}

	if (!display_next)
	this.contact_list.clear_selection();
	}
	};

	// callback for creating a new contact group
	this.insert_contact_group = function(prop)
	{
	prop.type = 'group';

	var key = 'G'+prop.source+prop.id,
	link = $('<a>').attr({href: '#', rel: prop.source + ':' + prop.id})
	.click(function() { return ref.command('listgroup', prop, this); })
	.text(prop.name);

	this.env.contactfolders[key] = this.env.contactgroups[key] = prop;
	this.treelist.insert({ id:key, html:link, classes:['contactgroup'] }, prop.source, 'contactgroup');

	// make sure there is no cached address book or contact group selectors
	this.destroy_entity_selector('addressbook-selector');
	this.destroy_entity_selector('contactgroup-selector');

	this.triggerEvent('group_insert', { id:prop.id, source:prop.source, name:prop.name, li:this.treelist.get_item(key) });
	};

	// callback for renaming a contact group
	this.update_contact_group = function(prop)
	{
	var key = 'G'+prop.source+prop.id,
	newnode = {};

	// group ID has changed, replace link node and identifiers
	if (prop.newid) {
	var newkey = 'G'+prop.source+prop.newid,
	newprop = $.extend({}, prop);

	this.env.contactfolders[newkey] = this.env.contactfolders[key];
	this.env.contactfolders[newkey].id = prop.newid;
	this.env.group = prop.newid;

	delete this.env.contactfolders[key];
	delete this.env.contactgroups[key];

	newprop.id = prop.newid;
	newprop.type = 'group';

	newnode.id = newkey;
	newnode.html = $('<a>').attr({href: '#', rel: prop.source + ':' + prop.newid})
	.click(function() { return ref.command('listgroup', newprop, this); })
	.text(prop.name);
	}
	// update displayed group name
	else {
	$(this.treelist.get_item(key)).children().first().text(prop.name);
	this.env.contactfolders[key].name = this.env.contactgroups[key].name = prop.name;

	if (prop.source == this.env.source && prop.id == this.env.group)
	this.set_group_prop(prop);
	}

	// update list node and re-sort it
	this.treelist.update(key, newnode, true);

	// make sure there is no cached address book or contact group selectors
	this.destroy_entity_selector('addressbook-selector');
	this.destroy_entity_selector('contactgroup-selector');

	this.triggerEvent('group_update', { id:prop.id, source:prop.source, name:prop.name, li:this.treelist.get_item(key), newid:prop.newid });
	};

	this.update_group_commands = function()
	{
	var source = this.env.source != '' ? this.env.address_sources[this.env.source] : null,
	supported = source && source.groups && !source.readonly;

	this.enable_command('group-create', supported);
	this.enable_command('group-rename', 'group-delete', supported && this.env.group);
	};

	this.init_edit_field = function(col, elem)
	{
	var label = this.env.coltypes[col].label;

	if (!elem)
	elem = $('.ff_' + col);

	if (label && !$('label[for="ff_' + col + '"]').length)
	elem.placeholder(label);
	};

	this.insert_edit_field = function(col, section, menu)
	{
	// just make pre-defined input field visible
	var elem = $('#ff_' + col);
	if (elem.length) {
	$('label[for="ff_' + col + '"]').parent().show();
	elem.show().focus();
	$(menu).children('option[value="' + col + '"]').prop('disabled', true);
	}
	else {
	var lastelem = $('.ff_' + col),
	appendcontainer = $('#contactsection'+section+' .contactcontroller'+col);

	if (!appendcontainer.length) {
	var sect = $('#contactsection'+section),
	lastgroup = $('.contactfieldgroup', sect).last();
	appendcontainer = $('<fieldset>').addClass('contactfieldgroup contactcontroller'+col);
	if (lastgroup.length)
	appendcontainer.insertAfter(lastgroup);
	else
	sect.prepend(appendcontainer);
	}

	if (appendcontainer.get(0).nodeName == 'FIELDSET') {
	var label, input,
	colprop = this.env.coltypes[col],
	name_suffix = colprop.limit != 1 ? '[]' : '',
	compact = $(menu).data('compact') ? true : false,
	input_id = 'ff_' + col + (colprop.count \|\| 0),
	row = $('<div>').addClass('row input-group'),
	cell = $('<div>').addClass('contactfieldcontent ' + colprop.type);

	// Field label
	if (colprop.subtypes_select) {
	label = $(colprop.subtypes_select);
	if (!compact)
	label = $('<div>').addClass('contactfieldlabel label').append(label);
	else
	label.addClass('input-group-prepend');
	}
	else {
	label = $('<label>').addClass('contactfieldlabel label input-group-text')
	.attr('for', input_id).text(colprop.label);

	if (compact)
	label = $('<span class="input-group-prepend">').append(label);
	}

	// Field input
	if (colprop.type == 'text' \|\| colprop.type == 'date') {
	input = $('<input>')
	.addClass('form-control ff_' + col)
	.attr({type: 'text', name: '_'+col+name_suffix, size: colprop.size, id: input_id});

	this.init_edit_field(col, input);

	if (colprop.type == 'date' && $.datepicker)
	input.addClass('datepicker').datepicker();
	}
	else if (colprop.type == 'textarea') {
	input = $('<textarea>')
	.addClass('form-control ff_' + col)
	.attr({ name: '_' + col + name_suffix, cols: colprop.size, rows: colprop.rows, id: input_id });

	this.init_edit_field(col, input);
	}
	else if (colprop.type == 'composite') {
	var i, childcol, cp, first, templ, cols = [], suffices = [], content = cell;

	row.addClass('composite');

	if (compact)
	content = $('<div class="content input-group-text">');

	// read template for composite field order
	if (templ = this.env[col + '_template']) {
	for (i=0; i < templ.length; i++) {
	cols.push(templ[i][1]);
	suffices.push(templ[i][2]);
	}
	}
	else { // list fields according to appearance in colprop
	for (childcol in colprop.childs)
	cols.push(childcol);
	}

	for (i=0; i < cols.length; i++) {
	childcol = cols[i];
	cp = colprop.childs[childcol];
	input = $('<input>')
	.addClass('form-control ff_' + childcol)
	.attr({ type: 'text', name: '_' + childcol + name_suffix, size: cp.size })
	.appendTo(content);

	if (!compact)
	content.append(suffices[i] \|\| " ");

	this.init_edit_field(childcol, input);
	if (!first) first = input;
	}

	if (compact)
	input = content;
	else
	input = first; // set focus to the first of this composite fields
	}
	else if (colprop.type == 'select') {
	input = $('<select>')
	.addClass('custom-select ff_' + col)
	.attr({ name: '_' + col + name_suffix, id: input_id });

	var options = input.attr('options');
	options[options.length] = new Option('---', '');
	if (colprop.options)
	$.each(colprop.options, function(i, val) { options[options.length] = new Option(val, i); });
	}

	if (input) {
	var delbutton = $('<a href="#del"></a>')
	.addClass('contactfieldbutton deletebutton input-group-text icon delete')
	.attr({title: this.get_label('delete'), rel: col})
	.html(this.env.delbutton)
	.click(function() { ref.delete_edit_field(this); return false; });

	row.append(label);

	if (!compact) {
	if (colprop.type != 'composite')
	cell.append(input);
	row.append(cell.append(delbutton));
	}
	else {
	row.append(input).append(delbutton);
	delbutton.wrap('<span class="input-group-append">');
	}

	row.appendTo(appendcontainer.show());

	if (input.is('div'))
	input.find('input').first().focus();
	else
	input.first().focus();

	// disable option if limit reached
	if (!colprop.count) colprop.count = 0;
	if (++colprop.count == colprop.limit && colprop.limit)
	$(menu).children('option[value="' + col + '"]').prop('disabled', true);

	this.triggerEvent('insert-edit-field', input);
	}
	}
	}
	};

	this.delete_edit_field = function(elem)
	{
	var col = $(elem).attr('rel'),
	colprop = this.env.coltypes[col],
	input_group = $(elem).parents('div.row'),
	fieldset = $(elem).parents('fieldset.contactfieldgroup'),
	addmenu = fieldset.parent().find('select.addfieldmenu');

	// just clear input but don't hide the last field
	if (--colprop.count <= 0 && colprop.visible)
	input_group.find('input').val('').blur();
	else {
	input_group.remove();
	// hide entire fieldset if no more rows
	if (!fieldset.children('div.row').length)
	fieldset.hide();
	}

	// enable option in add-field selector or insert it if necessary
	if (addmenu.length) {
	var option = addmenu.children('option[value="'+col+'"]');
	if (option.length)
	option.prop('disabled', false);
	else
	option = $('<option>').attr('value', col).html(colprop.label).appendTo(addmenu);
	addmenu.show();
	}
	};

	this.upload_contact_photo = function(form)
	{
	if (form && form.elements._photo.value) {
	this.async_upload_form(form, 'upload-photo', function(e) {
	ref.set_busy(false, null, ref.file_upload_id);
	});

	// display upload indicator
	this.file_upload_id = this.set_busy(true, 'uploading');
	}
	};

	this.replace_contact_photo = function(id)
	{
	var img_src = id == '-del-' ? this.env.photo_placeholder :
	this.env.comm_path + '&_action=photo&_source=' + this.env.source + '&_cid=' + (this.env.cid \|\| 0) + '&_photo=' + id;

	this.set_photo_actions(id);
	$(this.gui_objects.contactphoto).children('img').attr('src', img_src);
	};

	this.photo_upload_end = function()
	{
	this.set_busy(false, null, this.file_upload_id);
	delete this.file_upload_id;
	};

	this.set_photo_actions = function(id)
	{
	var n, buttons = this.buttons['upload-photo'];
	for (n=0; buttons && n < buttons.length; n++)
	$('a#'+buttons[n].id).html(this.get_label(id == '-del-' ? 'addphoto' : 'replacephoto'));

	$('#ff_photo').val(id);
	this.enable_command('upload-photo', this.env.coltypes.photo ? true : false);
	this.enable_command('delete-photo', this.env.coltypes.photo && id != '-del-');
	};

	// load advanced search page
	this.advanced_search = function()
	{
	var dialog = $('<iframe>').attr('src', this.url('search', {_form: 1, _framed: 1})),
	search_func = function() {
	var valid = false, form = {_adv: 1};

	$.each($(dialog[0].contentWindow.rcmail.gui_objects.editform).serializeArray(), function() {
	if (this.name.match(/^_search/) && this.value != '') {
	form[this.name] = this.value;
	valid = true;
	}
	});

	if (valid) {
	ref.http_post('search', form, ref.set_busy(true, 'searching'));
	return true;
	}
	};

	this.simple_dialog(dialog, this.gettext('advsearch'), search_func, {
	button: 'search',
	width: 600,
	height: 500
	});

	return true;
	};

	// unselect directory/group
	this.unselect_directory = function()
	{
	this.select_folder('');
	this.enable_command('search-delete', false);
	};

	// callback for creating a new saved search record
	this.insert_saved_search = function(name, id)
	{
	var key = 'S'+id,
	link = $('<a>').attr({href: '#', rel: id})
	.click(function() { return ref.command('listsearch', id, this); })
	.html(name),
	prop = { name:name, id:id };

	this.savedsearchlist.insert({ id:key, html:link, classes:['contactsearch'] }, null, 'contactsearch');
	this.select_folder(key,'',true);
	this.enable_command('search-delete', true);
	this.env.search_id = id;

	this.triggerEvent('abook_search_insert', prop);
	};

	// creates a dialog for saved search
	this.search_create = function()
	{
	var input = $('<input>').attr('type', 'text'),
	content = $('<label>').text(this.get_label('namex')).append(input);

	this.simple_dialog(content, 'searchsave',
	function() {
	var name;
	if (name = input.val()) {
	ref.http_post('search-create', {_search: ref.env.search_request, _name: name},
	ref.set_busy(true, 'loading'));
	return true;
	}
	}
	);
	};

	this.search_delete = function()
	{
	if (this.env.search_request) {
	var lock = this.set_busy(true, 'savedsearchdeleting');
	this.http_post('search-delete', {_sid: this.env.search_id}, lock);
	}
	};

	// callback from server upon search-delete command
	this.remove_search_item = function(id)
	{
	if (this.savedsearchlist.remove('S' + id)) {
	this.triggerEvent('search_delete', {id: id});
	}

	this.env.search_id = null;
	this.env.search_request = null;
	this.list_contacts_clear();
	this.reset_qsearch();
	this.enable_command('search-delete', 'search-create', false);
	};

	this.listsearch = function(id)
	{
	var lock = this.set_busy(true, 'searching');

	if (this.contact_list) {
	this.list_contacts_clear();
	}

	this.reset_qsearch();

	if (this.savedsearchlist) {
	this.treelist.select('');
	this.savedsearchlist.select('S'+id);
	}
	else
	this.select_folder('S'+id, '', true);

	// reset vars
	this.env.current_page = 1;
	this.http_request('search', {_sid: id}, lock);
	};

	// display a dialog with QR code image
	this.qrcode = function()
	{
	var title = this.get_label('qrcode'),
	options = {button: false, cancel_button: 'close', width: 300, height: 300},
	img = new Image(300, 300);

	img.src = this.url('addressbook/qrcode', {_source: this.env.source, _cid: this.get_single_cid()});

	return this.simple_dialog(img, title, null, options);
	};


	/*********************************************************/
	/******* user settings methods *******/
	/*********************************************************/

	// preferences section select and load options frame
	this.section_select = function(list)
	{
	var win, id = list.get_single_selection();

	if (id && (win = this.get_frame_window(this.env.contentframe))) {
	this.location_href({_action: 'edit-prefs', _section: id, _framed: 1}, win, true);
	}
	};

	this.response_select = function(list)
	{
	var id = list.get_single_selection();

	this.enable_command('delete', !!id && $.inArray(id, this.env.readonly_responses) < 0);

	if (id) {
	this.load_response(id, 'edit-response');
	}
	};

	// load response record
	this.load_response = function(id, action)
	{
	var win;

	if (win = this.get_frame_window(this.env.contentframe)) {
	if (id \|\| action == 'add-response') {
	if (!id)
	this.responses_list.clear_selection();

	this.location_href({_action: action, _key: id, _framed: 1}, win, true);
	}
	}
	};

	this.identity_select = function(list)
	{
	var id = list.get_single_selection();

	this.enable_command('delete', !!id && list.rowcount > 1 && this.env.identities_level < 2);

	if (id) {
	this.load_identity(id, 'edit-identity');
	}
	};

	// load identity record
	this.load_identity = function(id, action)
	{
	var win;

	if (win = this.get_frame_window(this.env.contentframe)) {
	if (id \|\| action == 'add-identity') {
	if (!id)
	this.identity_list.clear_selection();

	this.location_href({_action: action, _iid: id, _framed: 1}, win, true);
	}
	}
	};

	this.delete_identity = function(id)
	{
	// exit if no identity is specified or if selection is empty
	var selection = this.identity_list.get_selection();
	if (!(selection.length \|\| this.env.iid))
	return;

	if (!id)
	id = this.env.iid ? this.env.iid : selection[0];

	// submit request with appended token
	if (id) {
	this.confirm_dialog(this.get_label('deleteidentityconfirm'), 'delete', function() {
	ref.http_post('settings/delete-identity', { _iid: id }, true);
	});
	}
	};

	this.update_identity_row = function(id, name, add)
	{
	var list = this.identity_list,
	rid = this.html_identifier(id);

	if (add) {
	list.insert_row({ id:'rcmrow'+rid, cols:[ { className:'mail', innerHTML:name } ] });
	list.select(rid);
	}
	else {
	list.update_row(rid, [ name ]);
	}
	};

	this.update_response_row = function(response, oldkey)
	{
	var list = this.responses_list;

	if (list && oldkey) {
	list.update_row(oldkey, [ response.name ], response.key, true);
	}
	else if (list) {
	list.insert_row({ id:'rcmrow'+response.key, cols:[ { className:'name', innerHTML:response.name } ] });
	list.select(response.key);
	}
	};

	this.remove_response = function(key)
	{
	var frame;

	if (this.env.textresponses) {
	delete this.env.textresponses[key];
	}

	if (this.responses_list) {
	this.responses_list.remove_row(key);
	this.show_contentframe(false);
	}

	this.enable_command('delete', false);
	};

	this.remove_identity = function(id)
	{
	var frame, list = this.identity_list,
	rid = this.html_identifier(id);

	if (list && id) {
	list.remove_row(rid);
	this.show_contentframe(false);
	}

	this.enable_command('delete', false);
	};


	/*********************************************************/
	/******* folder manager methods *******/
	/*********************************************************/

	this.init_subscription_list = function()
	{
	var delim = RegExp.escape(this.env.delimiter);

	this.last_sub_rx = RegExp('['+delim+']?[^'+delim+']+$');

	this.subscription_list = new rcube_treelist_widget(this.gui_objects.subscriptionlist, {
	selectable: true,
	tabexit: false,
	parent_focus: true,
	id_prefix: 'rcmli',
	id_encode: this.html_identifier_encode,
	id_decode: this.html_identifier_decode,
	searchbox: '#foldersearch'
	});

	this.subscription_list
	.addEventListener('select', function(node) { ref.subscription_select(node.id); })
	.addEventListener('collapse', function(node) { ref.folder_collapsed(node) })
	.addEventListener('expand', function(node) { ref.folder_collapsed(node) })
	.addEventListener('search', function(p) { if (p.query) ref.subscription_select(); })
	.draggable({cancel: 'li.mailbox.root,input,div.treetoggle,.custom-control'})
	.droppable({
	// @todo: find better way, accept callback is executed for every folder
	// on the list when dragging starts (and stops), this is slow, but
	// I didn't find a method to check droptarget on over event
	accept: function(node) {
	if (!node.is('.mailbox'))
	return false;

	var source_folder = ref.folder_id2name(node.attr('id')),
	dest_folder = ref.folder_id2name(this.id),
	source = ref.env.subscriptionrows[source_folder],
	dest = ref.env.subscriptionrows[dest_folder];

	return source && !source[2]
	&& dest_folder != source_folder.replace(ref.last_sub_rx, '')
	&& !dest_folder.startsWith(source_folder + ref.env.delimiter);
	},
	drop: function(e, ui) {
	var source = ref.folder_id2name(ui.draggable.attr('id')),
	dest = ref.folder_id2name(this.id);

	ref.subscription_move_folder(source, dest);
	}
	});
	};

	this.folder_id2name = function(id)
	{
	return id ? ref.html_identifier_decode(id.replace(/^rcmli/, '')) : null;
	};

	this.subscription_select = function(id)
	{
	var folder;

	if (id && id != '*' && (folder = this.env.subscriptionrows[id])) {
	this.env.mailbox = id;
	this.show_folder(id);
	this.enable_command('delete-folder', !folder[2]);
	}
	else {
	this.env.mailbox = null;
	this.show_contentframe(false);
	this.enable_command('delete-folder', 'purge', false);
	}
	};

	this.subscription_move_folder = function(from, to)
	{
	if (from && to !== null && from != to && to != from.replace(this.last_sub_rx, '')) {
	var path = from.split(this.env.delimiter),
	basename = path.pop(),
	newname = to === '' \|\| to === '*' ? basename : to + this.env.delimiter + basename;

	if (newname != from) {
	this.confirm_dialog(this.get_label('movefolderconfirm'), 'move', function() {
	ref.http_post('rename-folder', {_folder_oldname: from, _folder_newname: newname},
	ref.set_busy(true, 'foldermoving'));
	}, {button_class: 'save move'});
	}
	}
	};

	// tell server to create and subscribe a new mailbox
	this.create_folder = function()
	{
	this.show_folder('', this.env.mailbox);
	};

	// delete a specific mailbox with all its messages
	this.delete_folder = function(name)
	{
	if (!name)
	name = this.env.mailbox;

	if (name) {
	this.confirm_dialog(this.get_label('deletefolderconfirm'), 'delete', function() {
	ref.http_post('delete-folder', {_mbox: name}, ref.set_busy(true, 'folderdeleting'));
	});
	}
	};

	// Add folder row to the table and initialize it
	this.add_folder_row = function (id, name, display_name, is_protected, subscribed, class_name, refrow, subfolders)
	{
	if (!this.gui_objects.subscriptionlist)
	return false;

	// reset searching
	if (this.subscription_list.is_search()) {
	this.subscription_select();
	this.subscription_list.reset_search();
	}

	// disable drag-n-drop temporarily
	// some skins disable dragging in mobile mode, so we have to check if it is still draggable
	if (this.subscription_list.is_draggable())
	this.subscription_list.draggable('destroy').droppable('destroy');

	var row, n, tmp, tmp_name, rowid, collator, pos, p, parent = '',
	folders = [], list = [], slist = [],
	list_element = $(this.gui_objects.subscriptionlist);
	row = refrow ? refrow : $($('li', list_element).get(1)).clone(true);

	if (!row.length) {
	// Refresh page if we don't have a table row to clone
	this.goto_url('folders');
	return false;
	}

	// set ID, reset css class
	row.attr({id: 'rcmli' + this.html_identifier_encode(id), 'class': class_name});

	if (!refrow \|\| !refrow.length) {
	// remove old data, subfolders and toggle
	$('ul,div.treetoggle', row).remove();
	row.removeData('filtered');
	}

	// set folder name
	$('a', row).first().text(display_name).removeAttr('title');

	// update subscription checkbox
	$('input[name="_subscribed[]"]', row).first().val(id)
	.prop({checked: subscribed ? true : false, disabled: is_protected ? true : false});

	// add to folder/row-ID map
	this.env.subscriptionrows[id] = [name, display_name, false];

	// copy folders data to an array for sorting
	$.each(this.env.subscriptionrows, function(k, v) { v[3] = k; folders.push(v); });

	try {
	// use collator if supported (FF29, IE11, Opera15, Chrome24)
	collator = new Intl.Collator(this.env.locale.replace('_', '-'));
	}
	catch (e) {};

	// sort folders
	folders.sort(function(a, b) {
	var i, f1, f2,
	path1 = a[0].split(ref.env.delimiter),
	path2 = b[0].split(ref.env.delimiter),
	len = path1.length;

	for (i=0; i<len; i++) {
	f1 = path1[i];
	f2 = path2[i];

	if (f1 !== f2) {
	if (f2 === undefined)
	return 1;
	if (collator)
	return collator.compare(f1, f2);
	else
	return f1 < f2 ? -1 : 1;
	}
	else if (i == len-1) {
	return -1
	}
	}
	});

	for (n in folders) {
	p = folders[n][3];
	// protected folder
	if (folders[n][2]) {
	tmp_name = p + this.env.delimiter;
	// prefix namespace cannot have subfolders (#1488349)
	if (tmp_name == this.env.prefix_ns)
	continue;
	slist.push(p);
	tmp = tmp_name;
	}
	// protected folder's child
	else if (tmp && p.startsWith(tmp))
	slist.push(p);
	// other
	else {
	list.push(p);
	tmp = null;
	}
	}

	// check if subfolder of a protected folder
	for (n=0; n<slist.length; n++) {
	if (id.startsWith(slist[n] + this.env.delimiter))
	rowid = slist[n];
	}

	// find folder position after sorting
	for (n=0; !rowid && n<list.length; n++) {
	if (n && list[n] == id)
	rowid = list[n-1];
	}

	// add row to the table
	if (rowid && (n = this.subscription_list.get_item(rowid, true))) {
	// find parent folder
	if (pos = id.lastIndexOf(this.env.delimiter)) {
	parent = id.substring(0, pos);
	parent = this.subscription_list.get_item(parent, true);

	// add required tree elements to the parent if not already there
	if (!$('div.treetoggle', parent).length) {
	$('<div> </div>').addClass('treetoggle collapsed').appendTo(parent);
	}
	if (!$('ul', parent).length) {
	$('<ul>').css('display', 'none').appendTo(parent);
	}
	}

	if (parent && n == parent) {
	$('ul', parent).first().append(row);
	}
	else {
	while (p = $(n).parent().parent().get(0)) {
	if (parent && p == parent)
	break;
	if (!$(p).is('li.mailbox'))
	break;
	n = p;
	}

	$(n).after(row);
	}
	}
	else {
	list_element.append(row);
	}

	// add subfolders
	$.extend(this.env.subscriptionrows, subfolders \|\| {});

	// update list widget
	this.subscription_list.reset(true);
	this.subscription_select();

	// expand parent
	if (parent) {
	this.subscription_list.expand(this.folder_id2name(parent.id));
	}

	row = row.show().get(0);
	if (row.scrollIntoView)
	row.scrollIntoView(false);

	// Let skins to do their magic, e.g. Elastic will fix pretty checkbox
	if (!refrow)
	this.triggerEvent('clonerow', {row: row, id: id});

	return row;
	};

	// replace an existing table row with a new folder line (with subfolders)
	this.replace_folder_row = function(oldid, id, name, display_name, is_protected, class_name)
	{
	if (!this.gui_objects.subscriptionlist) {
	if (this.is_framed()) {
	// @FIXME: for some reason this 'parent' variable need to be prefixed with 'window.'
	return window.parent.rcmail.replace_folder_row(oldid, id, name, display_name, is_protected, class_name);
	}

	return false;
	}

	// reset searching
	if (this.subscription_list.is_search()) {
	this.subscription_select();
	this.subscription_list.reset_search();
	}

	var subfolders = {},
	row = this.subscription_list.get_item(oldid, true),
	parent = $(row).parent(),
	old_folder = this.env.subscriptionrows[oldid],
	prefix_len_id = oldid.length,
	prefix_len_name = old_folder[0].length,
	subscribed = $('input[name="_subscribed[]"]', row).first().prop('checked');

	// no renaming, only update class_name
	if (oldid == id) {
	$(row).attr('class', class_name \|\| '');
	return;
	}

	// update subfolders
	$('li', row).each(function() {
	var fname = ref.folder_id2name(this.id),
	folder = ref.env.subscriptionrows[fname],
	newid = id + fname.slice(prefix_len_id);

	this.id = 'rcmli' + ref.html_identifier_encode(newid);
	$('input[name="_subscribed[]"]', this).first().val(newid);
	folder[0] = name + folder[0].slice(prefix_len_name);

	subfolders[newid] = folder;
	delete ref.env.subscriptionrows[fname];
	});

	// get row off the list
	row = $(row).detach();

	delete this.env.subscriptionrows[oldid];

	// remove parent list/toggle elements if not needed
	if (parent.get(0) != this.gui_objects.subscriptionlist && !$('li', parent).length) {
	$('ul,div.treetoggle', parent.parent()).remove();
	}

	// move the existing table row
	this.add_folder_row(id, name, display_name, is_protected, subscribed, class_name, row, subfolders);
	};

	// remove the table row of a specific mailbox from the table
	this.remove_folder_row = function(folder)
	{
	// reset searching
	if (this.subscription_list.is_search()) {
	this.subscription_select();
	this.subscription_list.reset_search();
	}

	var list = [], row = this.subscription_list.get_item(folder, true);

	// get subfolders if any
	$('li', row).each(function() { list.push(ref.folder_id2name(this.id)); });

	// remove folder row (and subfolders)
	this.subscription_list.remove(folder);

	// update local list variable
	list.push(folder);
	$.each(list, function(i, v) { delete ref.env.subscriptionrows[v]; });
	};

	this.subscribe = function(folder)
	{
	this.change_subscription_state(folder, true);
	};

	this.unsubscribe = function(folder)
	{
	this.change_subscription_state(folder, false);
	};

	this.change_subscription_state = function(folder, state)
	{
	if (folder) {
	var prefix = state ? '' : 'un',
	lock = this.display_message('folder' + prefix + 'subscribing', 'loading');

	this.http_post(prefix + 'subscribe', {_mbox: folder}, lock);

	// in case this was a list of search results, update also the main list
	$(this.gui_objects.subscriptionlist).find('input[value="' + folder + '"]').prop('checked', state);
	}
	};


	// when user select a folder in manager
	this.show_folder = function(folder, path, force)
	{
	var win, target = window,
	action = folder === '' ? 'add' : 'edit',
	url = '&_action=' + action + '-folder&_mbox=' + urlencode(folder);

	if (path)
	url += '&_path='+urlencode(path);

	if (win = this.get_frame_window(this.env.contentframe)) {
	target = win;
	url += '&_framed=1';
	}

	if (String(target.location.href).indexOf(url) >= 0 && !force)
	this.show_contentframe(true);
	else
	this.location_href(this.env.comm_path+url, target, true);
	};

	// disables subscription checkbox (for protected folder)
	this.disable_subscription = function(folder)
	{
	var row = this.subscription_list.get_item(folder, true);
	if (row)
	$('input[name="_subscribed[]"]', row).first().prop('disabled', true);
	};

	// resets state of subscription checkbox (e.g. on error)
	this.reset_subscription = function(folder, state)
	{
	var row = this.subscription_list.get_item(folder, true);
	if (row)
	$('input[name="_subscribed[]"]', row).first().prop('checked', state);
	};

	this.folder_size = function(folder)
	{
	var lock = this.set_busy(true, 'loading');
	this.http_post('folder-size', {_mbox: folder}, lock);
	};

	this.folder_size_update = function(size)
	{
	$('#folder-size').replaceWith(size);
	};

	// filter folders by namespace
	this.folder_filter = function(prefix)
	{
	this.subscription_list.reset_search();

	this.subscription_list.container.children('li').each(function() {
	var i, folder = ref.folder_id2name(this.id);
	// show all folders
	if (prefix == '---') {
	}
	// got namespace prefix
	else if (prefix) {
	if (folder !== prefix) {
	$(this).data('filtered', true).hide();
	return
	}
	}
	// no namespace prefix, filter out all other namespaces
	else {
	// first get all namespace roots
	for (i in ref.env.ns_roots) {
	if (folder === ref.env.ns_roots[i]) {
	$(this).data('filtered', true).hide();
	return;
	}
	}
	}

	$(this).removeData('filtered').show();
	});
	};

	/*********************************************************/
	/******* GUI functionality *******/
	/*********************************************************/

	this.init_button = function(cmd, prop)
	{
	var elm = document.getElementById(prop.id);
	if (!elm)
	return;

	var preload = false;
	if (prop.type == 'image') {
	elm = elm.parentNode;
	preload = true;
	}

	elm._command = cmd;
	elm._id = prop.id;
	if (prop.sel) {
	elm.onmousedown = function(e) { return ref.button_sel(this._command, this._id); };
	elm.onmouseup = function(e) { return ref.button_out(this._command, this._id); };
	if (preload)
	new Image().src = prop.sel;
	}
	if (prop.over) {
	elm.onmouseover = function(e) { return ref.button_over(this._command, this._id); };
	elm.onmouseout = function(e) { return ref.button_out(this._command, this._id); };
	if (preload)
	new Image().src = prop.over;
	}
	};

	// set event handlers on registered buttons
	this.init_buttons = function()
	{
	for (var cmd in this.buttons) {
	if (typeof cmd !== 'string')
	continue;

	for (var i=0; i<this.buttons[cmd].length; i++) {
	this.init_button(cmd, this.buttons[cmd][i]);
	}
	}
	};

	// set button to a specific state
	this.set_button = function(command, state)
	{
	var n, button, obj, a_buttons = this.buttons[command],
	len = a_buttons ? a_buttons.length : 0;

	for (n=0; n<len; n++) {
	button = a_buttons[n];
	obj = document.getElementById(button.id);

	if (!obj \|\| button.status === state)
	continue;

	// get default/passive setting of the button
	if (button.type == 'image' && !button.status) {
	button.pas = obj._original_src ? obj._original_src : obj.src;
	// respect PNG fix on IE browsers
	if (obj.runtimeStyle && obj.runtimeStyle.filter && obj.runtimeStyle.filter.match(/src=['"]([^'"]+)['"]/))
	button.pas = RegExp.$1;
	}
	else if (!button.status)
	button.pas = String(obj.className);

	button.status = state;

	// set image according to button state
	if (button.type == 'image' && button[state]) {
	obj.src = button[state];
	}
	// set class name according to button state
	else if (button[state] !== undefined) {
	obj.className = button[state];
	}

	// disable/enable input buttons
	if (button.type == 'input' \|\| button.type == 'button') {
	obj.disabled = state == 'pas';
	}
	else {
	$(obj).attr({
	tabindex: state == 'pas' \|\| state == 'sel' ? '-1' : ($(obj).attr('data-tabindex') \|\| '0'),
	'aria-disabled': state == 'pas' \|\| state == 'sel' ? 'true' : 'false'
	});
	}
	}
	};

	// display a specific alttext
	this.set_alttext = function(command, label)
	{
	var n, button, obj, link, label,
	a_buttons = this.buttons[command],
	len = a_buttons ? a_buttons.length : 0;

	for (n=0; n<len; n++) {
	button = a_buttons[n];
	obj = document.getElementById(button.id);
	label = this.get_label(label);

	if (obj && button.type == 'image') {
	obj.setAttribute('alt', label);
	if ((link = obj.parentNode) && link.tagName.toLowerCase() == 'a')
	link.setAttribute('title', label);
	}
	else if (obj)
	obj.setAttribute('title', label);
	}
	};

	// mouse over button
	this.button_over = function(command, id)
	{
	this.button_event(command, id, 'over');
	};

	// mouse down on button
	this.button_sel = function(command, id)
	{
	this.button_event(command, id, 'sel');
	};

	// mouse out of button
	this.button_out = function(command, id)
	{
	this.button_event(command, id, 'act');
	};

	// event of button
	this.button_event = function(command, id, event)
	{
	var n, button, obj, a_buttons = this.buttons[command],
	len = a_buttons ? a_buttons.length : 0;

	for (n=0; n<len; n++) {
	button = a_buttons[n];
	if (button.id == id && button.status == 'act') {
	if (button[event] && (obj = document.getElementById(button.id))) {
	obj[button.type == 'image' ? 'src' : 'className'] = button[event];
	}

	if (event == 'sel') {
	this.buttons_sel[id] = command;
	}
	}
	}
	};

	// write to the document/window title
	this.set_pagetitle = function(title)
	{
	if (title && document.title)
	document.title = title;
	};

	// display a system message, list of types in common.css (below #message definition)
	this.display_message = function(msg, type, timeout, key)
	{
	if (msg && msg.length && /^[a-z._]+$/.test(msg))
	msg = this.get_label(msg);

	// pass command to parent window
	if (this.is_framed())
	return parent.rcmail.display_message(msg, type, timeout);

	if (!this.gui_objects.message) {
	// save message in order to display after page loaded
	if (type != 'loading')
	this.pending_message = [msg, type, timeout, key];
	return 1;
	}

	if (!type)
	type = 'notice';
	else if (type == 'loading') {
	if (!key)
	key = 'loading';
	if (!timeout)
	timeout = this.env.request_timeout * 1000;
	if (!msg)
	msg = this.get_label('loading');
	}

	if (!key)
	key = this.html_identifier(msg);

	var date = new Date(),
	id = type + date.getTime();

	if (!timeout) {
	switch (type) {
	case 'error':
	case 'warning':
	timeout = this.message_time * 2;
	break;

	case 'uploading':
	timeout = 0;
	break;

	default:
	timeout = this.message_time;
	}
	}

	// The same message is already displayed
	if (this.messages[key]) {
	// replace label
	if (this.messages[key].obj)
	$('div.content', this.messages[key].obj).html(msg);
	// store label in stack
	if (type == 'loading') {
	this.messages[key].labels.push({'id': id, 'msg': msg});
	}
	// add element and set timeout
	this.messages[key].elements.push(id);
	setTimeout(function() { ref.hide_message(id, type == 'loading'); }, timeout);
	return id;
	}

	// create DOM object and display it
	var obj = $('<div>').addClass(type + ' content').html(msg).data('key', key),
	cont = $(this.gui_objects.message).append(obj).show();

	this.messages[key] = {'obj': obj, 'elements': [id]};

	if (type == 'loading') {
	this.messages[key].labels = [{'id': id, 'msg': msg}];
	}
	else if (type != 'uploading') {
	obj.click(function() { return ref.hide_message(obj); })
	.attr('role', 'alert');
	}

	this.triggerEvent('message', { message:msg, type:type, timeout:timeout, object:obj });

	if (timeout > 0)
	setTimeout(function() { ref.hide_message(id, type != 'loading'); }, timeout);

	return id;
	};

	// make a message to disappear
	this.hide_message = function(obj, fade)
	{
	// pass command to parent window
	if (this.is_framed())
	return parent.rcmail.hide_message(obj, fade);

	if (!this.gui_objects.message)
	return;

	var k, n, i, o, m = this.messages;

	// Hide message by object, don't use for 'loading'!
	if (typeof obj === 'object') {
	o = $(obj);
	k = o.data('key');
	this.hide_message_object(o, fade);
	if (m[k])
	delete m[k];
	}
	// Hide message by id
	else {
	for (k in m) {
	for (n in m[k].elements) {
	if (m[k] && m[k].elements[n] == obj) {
	m[k].elements.splice(n, 1);
	// hide DOM element if last instance is removed
	if (!m[k].elements.length) {
	this.hide_message_object(m[k].obj, fade);
	delete m[k];
	}
	// set pending action label for 'loading' message
	else if (k == 'loading') {
	for (i in m[k].labels) {
	if (m[k].labels[i].id == obj) {
	delete m[k].labels[i];
	}
	else {
	o = m[k].labels[i].msg;
	$('div.content', m[k].obj).html(o);
	}
	}
	}
	}
	}
	}
	}
	};

	// hide message object and remove from the DOM
	this.hide_message_object = function(o, fade)
	{
	if (fade)
	o.fadeOut(600, function() { $(this).remove(); });
	else
	o.hide().remove();
	};

	// remove all messages immediately
	this.clear_messages = function()
	{
	// pass command to parent window
	if (this.is_framed())
	return parent.rcmail.clear_messages();

	var k, n, m = this.messages;

	for (k in m)
	for (n in m[k].elements)
	if (m[k].obj)
	this.hide_message_object(m[k].obj);

	this.messages = {};
	};

	// display uploading message with progress indicator
	// data should contain: name, total, current, percent, text
	this.display_progress = function(data)
	{
	if (!data \|\| !data.name)
	return;

	var msg = this.messages['progress' + data.name];

	if (!data.label)
	data.label = this.get_label('uploadingmany');

	if (!msg) {
	if (!data.percent \|\| data.percent < 100)
	this.display_message(data.label, 'uploading', 0, 'progress' + data.name);
	return;
	}

	if (!data.total \|\| data.percent >= 100) {
	this.hide_message(msg.obj);
	return;
	}

	if (data.text)
	data.label += ' ' + data.text;

	msg.obj.text(data.label);
	};

	// open a jquery UI dialog with the given content
	this.show_popup_dialog = function(content, title, buttons, options)
	{
	// forward call to parent window
	if (this.is_framed()) {
	return parent.rcmail.show_popup_dialog(content, title, buttons, options);
	}

	var popup = $('<div class="popup">');

	if (typeof content == 'object') {
	popup.append(content);
	if ($(content).is('iframe'))
	popup.addClass('iframe');
	}
	else
	popup.html(content);

	// assign special classes to dialog buttons
	var i = 0, fn = function(button, classes, idx) {
	if (typeof button == 'function') {
	button = {
	click: button,
	text: idx,
	'class': classes
	};
	}
	else {
	buttons['class'] = classes;
	}

	return button;
	};

	if (options && options.button_classes)
	$.each(buttons, function(idx, button) {
	var cl = options.button_classes[i];
	if (cl)
	buttons[idx] = fn(button, cl, idx);
	i++;
	});

	options = $.extend({
	title: title,
	buttons: buttons,
	modal: true,
	resizable: true,
	width: 500,
	close: function(event, ui) { $(this).remove(); }
	}, options \|\| {});

	popup.dialog(options);

	if (options.width)
	popup.width(options.width);
	if (options.height)
	popup.height(options.height);

	var dialog = popup.parent();

	if (!options.noresize) {
	// resize and center popup
	var win = $(window), w = win.width(), h = win.height(),
	width = popup.width(),
	height = options.height \|\| (popup[0].scrollHeight + 20),
	titlebar_height = $('.ui-dialog-titlebar', dialog).outerHeight() \|\| 0,
	buttonpane_height = $('.ui-dialog-buttonpane', dialog).outerHeight() \|\| 0,
	padding = (parseInt(dialog.css('padding-top')) + parseInt(popup.css('padding-top'))) * 2;

	popup.dialog('option', {
	height: Math.min(h - 40, height + titlebar_height + buttonpane_height + padding + 2),
	width: Math.min(w - 20, width + 28)
	});
	}
	else {
	popup.css('width', 'auto');
	}

	// Don't propagate keyboard events to the UI below the dialog (#6055)
	dialog.on('keydown keyup', function(e) { e.stopPropagation(); });

	// Add Enter key handler to the input, click the 'mainaction' button
	dialog.find('input[data-submit]').on('keydown', function(e) {
	if (e.which == 13) {
	dialog.find('.ui-dialog-buttonpane button.mainaction').click();
	}
	});

	this.triggerEvent('dialog-open', {obj: popup});

	return popup;
	};

	// show_popup_dialog() wrapper for simple dialogs with action and Cancel buttons
	this.simple_dialog = function(content, title, action_func, options)
	{
	if (!options)
	options = {};

	var title = this.get_label(title),
	save_label = options.button \|\| 'save',
	save_class = options.button_class \|\| save_label.replace(/^[^\.]+\./i, ''),
	cancel_label = options.cancel_button \|\| 'cancel',
	cancel_class = options.cancel_class \|\| cancel_label.replace(/^[^\.]+\./i, ''),
	close_func = function(e, ui, dialog) {
	(ref.is_framed() ? parent.$ : $)(dialog \|\| this).dialog('close');
	if (options.cancel_func) options.cancel_func(e, ref);
	},
	buttons = [{
	text: this.get_label(cancel_label),
	'class': cancel_class.replace(/close/i, 'cancel'),
	click: close_func
	}];

	if (!action_func)
	buttons[0]['class'] += ' mainaction';
	else
	buttons.unshift({
	text: this.get_label(save_label),
	'class': 'mainaction ' + save_class,
	click: function(e, ui) { if (action_func(e, ref)) close_func(e, ui, this); }
	});

	return this.show_popup_dialog(content, title, buttons, options);
	};

	// show_popup_dialog() wrapper for alert() type dialogs
	this.alert_dialog = function(content, action, options)
	{
	options = $.extend(options \|\| {}, {
	cancel_button: 'ok',
	cancel_class: 'save',
	cancel_func: action,
	noresize: true
	});

	return this.simple_dialog(content, options.title \|\| 'alerttitle', null, options);
	};

	// simple_dialog() wrapper for confirm() type dialogs
	this.confirm_dialog = function(content, button_label, action, options)
	{
	var action_func = function(e, ref) { action(e, ref); return true; };

	options = $.extend(options \|\| {}, {
	button: button_label \|\| 'continue',
	noresize: true
	});

	return this.simple_dialog(content, options.title \|\| 'confirmationtitle', action_func, options);
	};

	// enable/disable buttons for page shifting
	this.set_page_buttons = function()
	{
	this.enable_command('nextpage', 'lastpage', this.env.pagecount > this.env.current_page);
	this.enable_command('previouspage', 'firstpage', this.env.current_page > 1);

	this.update_pagejumper();
	};

	// mark a mailbox as selected and set environment variable
	this.select_folder = function(name, prefix, encode)
	{
	if (this.savedsearchlist) {
	this.savedsearchlist.select('');
	}

	if (this.treelist) {
	this.treelist.select(name);
	}
	else if (this.gui_objects.folderlist) {
	$('li.selected', this.gui_objects.folderlist).removeClass('selected');
	$(this.get_folder_li(name, prefix, encode)).addClass('selected');

	// trigger event hook
	this.triggerEvent('selectfolder', { folder:name, prefix:prefix });
	}
	};

	// adds a class to selected folder
	this.mark_folder = function(name, class_name, prefix, encode)
	{
	$(this.get_folder_li(name, prefix, encode)).addClass(class_name);
	this.triggerEvent('markfolder', {folder: name, mark: class_name, status: true});
	};

	// adds a class to selected folder
	this.unmark_folder = function(name, class_name, prefix, encode)
	{
	$(this.get_folder_li(name, prefix, encode)).removeClass(class_name);
	this.triggerEvent('markfolder', {folder: name, mark: class_name, status: false});
	};

	// helper method to find a folder list item
	this.get_folder_li = function(name, prefix, encode)
	{
	if (!prefix)
	prefix = 'rcmli';

	if (this.gui_objects.folderlist) {
	name = this.html_identifier(name, encode);
	return document.getElementById(prefix+name);
	}
	};

	// for reordering column array (Konqueror workaround)
	// and for setting some message list global variables
	this.set_message_coltypes = function(cols, repl, smart_col)
	{
	// update list mode columns list
	this.env.listcols = cols;

	// reset message list cols
	this.msglist_setup(this.env.layout);

	var list = this.message_list,
	thead = list ? list.thead : null,
	repl, cell, col, c, n, len, tr,
	listcols = this.env.msglist_cols;

	if (!this.env.coltypes)
	this.env.coltypes = {};

	// replace old column headers
	if (thead) {
	if (repl) {
	thead.innerHTML = '';
	tr = document.createElement('tr');

	for (n in listcols) {
	c = listcols[n];
	cell = document.createElement('th');
	cell.innerHTML = repl[c].html \|\| '';
	if (repl[c].id) cell.id = repl[c].id;
	if (repl[c].className) cell.className = repl[c].className;
	tr.appendChild(cell);
	}

	if (list.checkbox_selection)
	list.insert_checkbox(tr, 'thead');

	thead.appendChild(tr);
	}

	for (n = 0, len = listcols.length; n < len; n++) {
	col = listcols[list.checkbox_selection ? n-1 : n];
	if ((cell = thead.rows[0].cells[n]) && (col == 'from' \|\| col == 'to' \|\| col == 'fromto')) {
	$(cell).attr('rel', col).find('span,a').text(this.get_label(col == 'fromto' ? smart_col : col));
	}
	}
	}

	this.env.subject_col = null;
	this.env.flagged_col = null;
	this.env.status_col = null;

	if (this.env.coltypes.folder)
	this.env.coltypes.folder.hidden = !(this.env.search_request \|\| this.env.search_id) \|\| this.env.search_scope == 'base';

	if ((n = $.inArray('subject', listcols)) >= 0) {
	this.env.subject_col = n;
	if (list)
	list.subject_col = n;
	}
	if ((n = $.inArray('flag', listcols)) >= 0)
	this.env.flagged_col = n;
	if ((n = $.inArray('status', listcols)) >= 0)
	this.env.status_col = n;

	if (list) {
	list.hide_column('folder', (this.env.coltypes.folder && this.env.coltypes.folder.hidden) \|\| $.inArray('folder', listcols) < 0);
	list.init_header();
	}
	};

	// replace content of row count display
	this.set_rowcount = function(text, mbox)
	{
	// #1487752
	if (mbox && mbox != this.env.mailbox)
	return false;

	$(this.gui_objects.countdisplay).html(text);

	// update page navigation buttons
	this.set_page_buttons();
	};

	// replace content of mailboxname display
	this.set_mailboxname = function(content)
	{
	if (this.gui_objects.mailboxname && content)
	this.gui_objects.mailboxname.innerHTML = content;
	};

	// replace content of quota display
	this.set_quota = function(content)
	{
	if (this.gui_objects.quotadisplay && content && content.type == 'text')
	$(this.gui_objects.quotadisplay).text((content.percent\|\|0) + '%').attr('title', content.title \|\| '');

	this.triggerEvent('setquota', content);
	this.env.quota_content = content;
	};

	// update trash folder state
	this.set_trash_count = function(count)
	{
	this[(count ? 'un' : '') + 'mark_folder'](this.env.trash_mailbox, 'empty', '', true);
	};

	// update the mailboxlist
	this.set_unread_count = function(mbox, count, set_title, mark)
	{
	if (!this.gui_objects.mailboxlist)
	return false;

	this.env.unread_counts[mbox] = count;
	this.set_unread_count_display(mbox, set_title);

	if (mark)
	this.mark_folder(mbox, mark, '', true);
	else if (!count)
	this.unmark_folder(mbox, 'recent', '', true);

	this.mark_all_read_state();
	};

	// update the mailbox count display
	this.set_unread_count_display = function(mbox, set_title)
	{
	var reg, link, text_obj, item, mycount, childcount, div;

	if (item = this.get_folder_li(mbox, '', true)) {
	mycount = this.env.unread_counts[mbox] ? this.env.unread_counts[mbox] : 0;
	link = $(item).children('a').eq(0);
	text_obj = link.children('span.unreadcount');
	if (!text_obj.length && mycount)
	text_obj = $('<span>').addClass('unreadcount skip-content').appendTo(link);
	reg = /\s+$[0-9]+$$/i;

	childcount = 0;
	if ((div = item.getElementsByTagName('div')[0]) &&
	div.className.match(/collapsed/)) {
	// add children's counters
	for (var k in this.env.unread_counts)
	if (k.startsWith(mbox + this.env.delimiter))
	childcount += this.env.unread_counts[k];
	}

	if (mycount && text_obj.length)
	text_obj.html(this.env.unreadwrap.replace(/%[sd]/, mycount));
	else if (text_obj.length)
	text_obj.remove();

	// set parent's display
	reg = new RegExp(RegExp.escape(this.env.delimiter) + '[^' + RegExp.escape(this.env.delimiter) + ']+$');
	if (mbox.match(reg))
	this.set_unread_count_display(mbox.replace(reg, ''), false);

	// set the right classes
	if ((mycount+childcount)>0)
	$(item).addClass('unread');
	else
	$(item).removeClass('unread');
	}

	// set unread count to window title
	reg = /^$[0-9]+$\s+/i;
	if (set_title && document.title) {
	var new_title = '',
	doc_title = String(document.title);

	if (mycount && doc_title.match(reg))
	new_title = doc_title.replace(reg, '('+mycount+') ');
	else if (mycount)
	new_title = '('+mycount+') '+doc_title;
	else
	new_title = doc_title.replace(reg, '');

	this.set_pagetitle(new_title);
	}
	};

	// display fetched raw headers
	this.set_headers = function(content)
	{
	if (this.gui_objects.all_headers_box && content)
	$(this.gui_objects.all_headers_box).html(content).show();
	};

	// display all-headers row and fetch raw message headers
	this.show_headers = function(props, elem)
	{
	if (!this.gui_objects.all_headers_row \|\| !this.gui_objects.all_headers_box \|\| !this.env.uid)
	return;

	$(elem).removeClass('show-headers').addClass('hide-headers');
	$(this.gui_objects.all_headers_row).show();
	elem.onclick = function() { ref.command('hide-headers', '', elem); };

	// fetch headers only once
	if (!this.gui_objects.all_headers_box.innerHTML) {
	this.http_request('headers', {_uid: this.env.uid, _mbox: this.env.mailbox},
	this.display_message('', 'loading')
	);
	}
	};

	// hide all-headers row
	this.hide_headers = function(props, elem)
	{
	if (!this.gui_objects.all_headers_row \|\| !this.gui_objects.all_headers_box)
	return;

	$(elem).removeClass('hide-headers').addClass('show-headers');
	$(this.gui_objects.all_headers_row).hide();
	elem.onclick = function() { ref.command('show-headers', '', elem); };
	};

	// create folder selector popup
	this.folder_selector = function(event, callback)
	{
	this.entity_selector('folder-selector', callback, this.env.mailboxes_list, function(obj, a) {
	var n = 0, s = 0,
	delim = ref.env.delimiter,
	folder = ref.env.mailboxes[obj],
	id = folder.id,
	row = $('<li>');

	if (folder.virtual)
	a.addClass('virtual').attr({'aria-disabled': 'true', tabindex: '-1'});
	else
	a.addClass('active').data('id', folder.id);

	if (folder['class'])
	row.addClass(folder['class']);

	// calculate/set indentation level
	while ((s = id.indexOf(delim, s)) >= 0) {
	n++; s++;
	}
	a.css('padding-left', n ? (n * 16) + 'px' : 0);

	// add folder name element
	a.append($('<span>').text(folder.name));

	return row.append(a);
	}, event);
	};

	// create addressbook selector popup
	this.addressbook_selector = function(event, callback)
	{
	// build addressbook + groups list
	var combined_sources = [];

	// check we really need it before processing
	if (!this.entity_selectors['addressbook-selector']) {
	$.each(this.env.address_sources, function() {
	if (!this.readonly) {
	var source = this;
	combined_sources.push(source);

	$.each(ref.env.contactgroups, function() {
	if (source.id === this.source) {
	combined_sources.push(this);
	}
	});
	}
	});
	}

	this.entity_selector('addressbook-selector', callback, combined_sources, function(obj, a) {
	if (obj.type == 'group') {
	a.attr('rel', obj.source + ':' + obj.id)
	.addClass('contactgroup active')
	.data({source: obj.source, gid: obj.id, id: obj.source + ':' + obj.id})
	.css('padding-left', '16px');
	}
	else {
	a.addClass('addressbook active').data('id', obj.id);
	}
	a.append($('<span>').text(obj.name));

	return $('<li>').append(a);
	}, event);
	};

	// create contactgroup selector popup
	this.contactgroup_selector = function(event, callback)
	{
	this.entity_selector('contactgroup-selector', callback, this.env.contactgroups, function(obj, a) {
	if (ref.env.source === obj.source) {
	a.addClass('contactgroup active')
	.data({id: obj.id})
	.append($('<span>').text(obj.name));

	return $('<li>').append(a);
	}
	}, event);
	};

	// create selector popup (eg for folders or address books), position and display it
	this.entity_selector = function(name, click_callback, entity_list, list_callback, event)
	{
	var container = this.entity_selectors[name];

	if (!container) {
	var rows = [],
	container = $('<div>').attr('id', name).addClass('popupmenu'),
	ul = $('<ul>').addClass('toolbarmenu menu'),
	link = document.createElement('a');

	link.href = '#';
	link.className = 'icon';

	// loop over entity list
	$.each(entity_list, function(i) {
	var a = $(link.cloneNode(false)).attr('rel', this.id);
	rows.push(list_callback(this, a, i));
	});

	ul.append(rows).appendTo(container);

	// temporarily show element to calculate its size
	container.css({left: '-1000px', top: '-1000px'})
	.appendTo(document.body).show();

	// set max-height if the list is long
	if (rows.length > 10)
	container.css('max-height', $('li', container)[0].offsetHeight * 10 + 9);

	// register delegate event handler for folder item clicks
	container.on('click', 'a.active', function(e) {
	container.data('callback')($(this).data('id'), this);
	});

	this.entity_selectors[name] = container;
	}

	container.data('callback', click_callback);

	// position menu on the screen
	this.show_menu(name, true, event);
	};

	this.destroy_entity_selector = function(name)
	{
	$("#" + name).remove();
	delete this.entity_selectors[name];
	this.triggerEvent('destroy-entity-selector', { name: name });
	};

	/***********************************************/
	/******* popup menu functions *******/
	/***********************************************/

	// Show/hide a specific popup menu
	this.show_menu = function(prop, show, event)
	{
	var name = typeof prop == 'object' ? prop.menu : prop,
	obj = $('#'+name),
	ref = event && event.target ? $(event.target) : $(obj.attr('rel') \|\| '#'+name+'link'),
	keyboard = rcube_event.is_keyboard(event),
	align = obj.attr('data-align') \|\| '',
	stack = false;

	// find "real" button element
	if (ref.get(0).tagName != 'A' && ref.closest('a').length)
	ref = ref.closest('a');

	if (typeof prop == 'string')
	prop = { menu:name };

	// let plugins or skins provide the menu element
	if (!obj.length) {
	obj = this.triggerEvent('menu-get', { name:name, props:prop, originalEvent:event });
	}

	if (!obj \|\| !obj.length) {
	// just delegate the action to subscribers
	return this.triggerEvent(show === false ? 'menu-close' : 'menu-open', { name:name, props:prop, originalEvent:event });
	}

	// move element to top for proper absolute positioning
	obj.appendTo(document.body);

	if (typeof show == 'undefined')
	show = obj.is(':visible') ? false : true;

	if (show && ref.length) {
	var win = $(window),
	pos = ref.offset(),
	above = align.indexOf('bottom') >= 0;

	stack = ref.attr('role') == 'menuitem' \|\| ref.closest('[role=menuitem]').length > 0;

	ref.offsetWidth = ref.outerWidth();
	ref.offsetHeight = ref.outerHeight();
	if (!above && pos.top + ref.offsetHeight + obj.height() > win.height()) {
	above = true;
	}
	if (align.indexOf('right') >= 0) {
	pos.left = pos.left + ref.outerWidth() - obj.width();
	}
	else if (stack) {
	pos.left = pos.left + ref.offsetWidth - 5;
	pos.top -= ref.offsetHeight;
	}
	if (pos.left + obj.width() > win.width()) {
	pos.left = win.width() - obj.width() - 12;
	}
	pos.top = Math.max(0, pos.top + (above ? -obj.height() : ref.offsetHeight));
	obj.css({ left:pos.left+'px', top:pos.top+'px' });
	}

	// add menu to stack
	if (show) {
	// truncate stack down to the one containing the ref link
	for (var i = this.menu_stack.length - 1; stack && i >= 0; i--) {
	if (!$(ref).parents('#'+this.menu_stack[i]).length && $(event.target).parent().attr('role') != 'menuitem')
	this.hide_menu(this.menu_stack[i], event);
	}
	if (stack && this.menu_stack.length) {
	obj.data('parent', $.last(this.menu_stack));
	obj.css('z-index', ($('#'+$.last(this.menu_stack)).css('z-index') \|\| 0) + 1);
	}
	else if (!stack && this.menu_stack.length) {
	this.hide_menu(this.menu_stack[0], event);
	}

	obj.show().attr('aria-hidden', 'false').data('opener', ref.attr('aria-expanded', 'true').get(0));
	this.triggerEvent('menu-open', { name:name, obj:obj, props:prop, originalEvent:event });
	this.menu_stack.push(name);

	this.menu_keyboard_active = show && keyboard;
	if (this.menu_keyboard_active) {
	this.focused_menu = name;
	obj.find('a,input:not(:disabled)').not('[aria-disabled=true]').first().focus();
	}
	}
	else { // close menu
	this.hide_menu(name, event);
	}

	return show;
	};

	// hide the given popup menu (and its children)
	this.hide_menu = function(name, event)
	{
	if (!this.menu_stack.length) {
	// delegate to subscribers
	this.triggerEvent('menu-close', { name:name, props:{ menu:name }, originalEvent:event });
	return;
	}

	var obj, keyboard = rcube_event.is_keyboard(event);
	for (var j=this.menu_stack.length-1; j >= 0; j--) {
	obj = $('#' + this.menu_stack[j]).hide().attr('aria-hidden', 'true').data('parent', false);
	this.triggerEvent('menu-close', { name:this.menu_stack[j], obj:obj, props:{ menu:this.menu_stack[j] }, originalEvent:event });
	if (this.menu_stack[j] == name) {
	j = -1; // stop loop
	if (obj.data('opener')) {
	$(obj.data('opener')).attr('aria-expanded', 'false');
	if (keyboard)
	obj.data('opener').focus();
	}
	}
	this.menu_stack.pop();
	}

	// focus previous menu in stack
	if (this.menu_stack.length && keyboard) {
	this.menu_keyboard_active = true;
	this.focused_menu = $.last(this.menu_stack);
	if (!obj \|\| !obj.data('opener'))
	$('#'+this.focused_menu).find('a,input:not(:disabled)').not('[aria-disabled=true]').first().focus();
	}
	else {
	this.focused_menu = null;
	this.menu_keyboard_active = false;
	}
	};

	// position a menu element on the screen in relation to other object
	this.element_position = function(element, obj)
	{
	var obj = $(obj), win = $(window),
	width = obj.outerWidth(),
	height = obj.outerHeight(),
	menu_pos = obj.data('menu-pos'),
	win_height = win.height(),
	elem_height = $(element).height(),
	elem_width = $(element).width(),
	pos = obj.offset(),
	top = pos.top,
	left = pos.left + width;

	if (menu_pos == 'bottom') {
	top += height;
	left -= width;
	}
	else
	left -= 5;

	if (top + elem_height > win_height) {
	top -= elem_height - height;
	if (top < 0)
	top = Math.max(0, (win_height - elem_height) / 2);
	}

	if (left + elem_width > win.width())
	left -= elem_width + width;

	element.css({left: left + 'px', top: top + 'px'});
	};

	// initialize HTML editor
	this.editor_init = function(config, id)
	{
	this.editor = new rcube_text_editor(config, id);
	};


	/********************************************************/
	/******* html to text conversion functions *******/
	/********************************************************/

	this.html2plain = function(html, func)
	{
	return this.format_converter(html, 'html', func);
	};

	this.plain2html = function(plain, func)
	{
	return this.format_converter(plain, 'plain', func);
	};

	this.format_converter = function(text, format, func)
	{
	// warn the user (if converted content is not empty)
	if (!text
	\|\| (format == 'html' && !(text.replace(/<[^>]+>\| \|\xC2\xA0\|\s/g, '')).length)
	\|\| (format != 'html' && !(text.replace(/\xC2\xA0\|\s/g, '')).length)
	) {
	// without setTimeout() here, textarea is filled with initial (onload) content
	if (func)
	setTimeout(function() { func(''); }, 50);
	return true;
	}

	var confirmed = this.env.editor_warned \|\| confirm(this.get_label('editorwarning'));

	this.env.editor_warned = true;

	if (!confirmed)
	return false;

	var url = '?_task=utils&_action=' + (format == 'html' ? 'html2text' : 'text2html'),
	lock = this.set_busy(true, 'converting');

	$.ajax({ type: 'POST', url: url, data: text, contentType: 'application/octet-stream',
	error: function(o, status, err) { ref.http_error(o, status, err, lock); },
	success: function(data) {
	ref.set_busy(false, null, lock);
	if (func) func(data);
	}
	});

	return true;
	};


	/********************************************************/
	/******* remote request methods *******/
	/********************************************************/

	// compose a valid url with the given parameters
	this.url = function(action, query)
	{
	var querystring = typeof query === 'string' ? query : '';

	if (typeof action !== 'string')
	query = action;
	else if (!query \|\| typeof query !== 'object')
	query = {};

	if (action)
	query._action = action;
	else if (this.env.action)
	query._action = this.env.action;

	var url = this.env.comm_path, k, param = {};

	// overwrite task name
	if (action && action.match(/([a-z0-9_-]+)\/([a-z0-9-_.]+)/)) {
	query._action = RegExp.$2;
	url = url.replace(/\_task=[a-z0-9_-]+/, '_task=' + RegExp.$1);
	}

	// force _framed=0
	if (query._framed === 0) {
	url = url.replace('&_framed=1', '');
	query._framed = null;
	}

	// remove undefined values
	for (k in query) {
	if (query[k] !== undefined && query[k] !== null)
	param[k] = query[k];
	}

	if (param = $.param(param))
	url += (url.indexOf('?') > -1 ? '&' : '?') + param;

	if (querystring)
	url += (url.indexOf('?') > -1 ? '&' : '?') + querystring;

	return url;
	};

	this.redirect = function(url, lock)
	{
	if (lock !== false)
	this.set_busy(true, 'loading');

	if (this.is_framed()) {
	url = url.replace(/&_framed=1/, '');
	parent.rcmail.redirect(url, lock);
	}
	else {
	if (this.env.extwin) {
	if (typeof url == 'string')
	url += (url.indexOf('?') < 0 ? '?' : '&') + '_extwin=1';
	else
	url._extwin = 1;
	}
	this.location_href(url, window);
	}
	};

	this.goto_url = function(action, query, lock, secure)
	{
	var url = this.url(action, query)
	if (secure) url = this.secure_url(url);
	this.redirect(url, lock);
	};

	this.location_href = function(url, target, frame)
	{
	if (frame)
	this.lock_frame(target);

	if (typeof url == 'object')
	url = this.env.comm_path + '&' + $.param(url);

	// simulate real link click to force IE to send referer header
	if (bw.ie && target == window)
	$('<a>').attr('href', url).appendTo(document.body).get(0).click();
	else
	target.location.href = url;

	// reset keep-alive interval
	this.start_keepalive();
	};

	// update browser location to remember current view
	this.update_state = function(query)
	{
	if (window.history.replaceState)
	try {
	// This may throw security exception in Firefox (#5400)
	window.history.replaceState({}, document.title, rcmail.url('', query));
	}
	catch(e) { /* ignore */ };
	};

	// send a http request to the server
	this.http_request = function(action, data, lock, type)
	{
	if (type != 'POST')
	type = 'GET';

	if (typeof data !== 'object')
	data = rcube_parse_query(data);

	data._remote = 1;
	data._unlock = lock ? lock : 0;

	// trigger plugin hook
	var result = this.triggerEvent('request' + action, data);

	// abort if one of the handlers returned false
	if (result === false) {
	if (data._unlock)
	this.set_busy(false, null, data._unlock);
	return false;
	}
	else if (result && result.getResponseHeader) {
	return result;
	}
	else if (result !== undefined) {
	data = result;
	if (data._action) {
	action = data._action;
	delete data._action;
	}
	}

	var url = this.url(action);

	// reset keep-alive interval
	this.start_keepalive();

	// send request
	return $.ajax({
	type: type, url: url, data: data, dataType: 'json',
	success: function(data) { ref.http_response(data); },
	error: function(o, status, err) { ref.http_error(o, status, err, lock, action); }
	});
	};

	// send a http GET request to the server
	this.http_get = this.http_request;

	// send a http POST request to the server
	this.http_post = function(action, data, lock)
	{
	return this.http_request(action, data, lock, 'POST');
	};

	// aborts ajax request
	this.abort_request = function(r)
	{
	if (r.request)
	r.request.abort();
	if (r.lock)
	this.set_busy(false, null, r.lock);
	};

	// handle HTTP response
	this.http_response = function(response)
	{
	if (!response)
	return;

	if (response.unlock)
	this.set_busy(false, null, response.unlock);

	this.triggerEvent('responsebefore', {response: response});
	this.triggerEvent('responsebefore'+response.action, {response: response});

	// set env vars
	if (response.env)
	this.set_env(response.env);

	var i;

	// we have labels to add
	if (typeof response.texts === 'object') {
	for (i in response.texts)
	if (typeof response.texts[i] === 'string')
	this.add_label(i, response.texts[i]);
	}

	// if we get javascript code from server -> execute it
	if (response.exec) {
	eval(response.exec);
	}

	// execute callback functions of plugins
	if (response.callbacks && response.callbacks.length) {
	for (i=0; i < response.callbacks.length; i++)
	this.triggerEvent(response.callbacks[i][0], response.callbacks[i][1]);
	}

	// process the response data according to the sent action
	switch (response.action) {
	case 'mark':
	// Mark the message as Seen also in the opener/parent
	if ((this.env.action == 'show' \|\| this.env.action == 'preview') && this.env.last_flag == 'SEEN')
	this.set_unread_message(this.env.uid, this.env.mailbox);
	break;

	case 'delete':
	if (this.task == 'addressbook') {
	var sid, uid = this.contact_list.get_selection(), writable = false;

	if (uid && this.contact_list.rows[uid]) {
	// search results, get source ID from record ID
	if (this.env.source == '') {
	sid = String(uid).replace(/^[^-]+-/, '');
	writable = sid && this.env.address_sources[sid] && !this.env.address_sources[sid].readonly;
	}
	else {
	writable = !this.env.address_sources[this.env.source].readonly;
	}
	}
	this.enable_command('delete', 'edit', writable);
	this.enable_command('export', (this.contact_list && this.contact_list.rowcount > 0));
	this.enable_command('export-selected', 'print', false);
	}

	case 'move':
	if (this.env.action == 'show') {
	// re-enable commands on move/delete error
	this.enable_command(this.env.message_commands, true);
	if (!this.env.list_post)
	this.enable_command('reply-list', false);
	}
	else if (this.task == 'addressbook') {
	this.triggerEvent('listupdate', { list:this.contact_list, folder:this.env.source, rowcount:this.contact_list.rowcount });
	}

	case 'purge':
	case 'expunge':
	if (this.task == 'mail') {
	if (!this.env.exists) {
	// clear preview pane content
	if (this.env.contentframe)
	this.show_contentframe(false);
	// disable commands useless when mailbox is empty
	this.enable_command(this.env.message_commands, 'purge', 'expunge',
	'select-all', 'select-none', 'expand-all', 'expand-unread', 'collapse-all', false);
	}
	if (this.message_list)
	this.triggerEvent('listupdate', { list:this.message_list, folder:this.env.mailbox, rowcount:this.message_list.rowcount });
	}
	break;

	case 'refresh':
	case 'check-recent':
	// update message flags
	$.each(this.env.recent_flags \|\| {}, function(uid, flags) {
	ref.set_message(uid, 'deleted', flags.deleted);
	ref.set_message(uid, 'replied', flags.answered);
	ref.set_message(uid, 'unread', !flags.seen);
	ref.set_message(uid, 'forwarded', flags.forwarded);
	ref.set_message(uid, 'flagged', flags.flagged);
	});
	delete this.env.recent_flags;

	case 'getunread':
	case 'search':
	this.env.qsearch = null;
	case 'list':
	if (this.task == 'mail') {
	var is_multifolder = this.is_multifolder_listing(),
	list = this.message_list,
	uid = this.env.list_uid;

	this.enable_command('show', 'select-all', 'select-none', this.env.messagecount > 0);
	this.enable_command('expunge', 'purge', this.env.exists && !is_multifolder);
	this.enable_command('import-messages', !is_multifolder);
	this.enable_command('expand-all', 'expand-unread', 'collapse-all', this.env.threading && this.env.messagecount && !is_multifolder);

	if (list) {
	if (response.action == 'list' \|\| response.action == 'search') {
	// highlight message row when we're back from message page
	if (uid) {
	if (uid === 'FIRST') {
	uid = list.get_first_row();
	}
	else if (uid === 'LAST') {
	uid = list.get_last_row();
	}
	else if (!list.rows[uid]) {
	uid += '-' + this.env.mailbox;
	}

	if (uid && list.rows[uid]) {
	list.select(uid);
	}

	delete this.env.list_uid;
	}

	this.enable_command('set-listmode', this.env.threads && !is_multifolder);
	if (list.rowcount > 0 && !$(document.activeElement).is('input,textarea'))
	list.focus();

	// trigger 'select' so all dependent actions update its state
	// e.g. plugins use this event to activate buttons (#1490647)
	list.triggerEvent('select');
	}

	if (response.action != 'getunread')
	this.triggerEvent('listupdate', { list:list, folder:this.env.mailbox, rowcount:list.rowcount });
	}
	}
	else if (this.task == 'addressbook') {
	var list = this.contact_list,
	uid = this.env.list_uid;

	this.enable_command('export', 'select-all', 'select-none', (list && list.rowcount > 0));

	if (response.action == 'list' \|\| response.action == 'search') {
	this.enable_command('search-create', this.env.source == '');
	this.enable_command('search-delete', this.env.search_id);
	this.update_group_commands();

	if (list && uid) {
	if (uid === 'FIRST') {
	uid = list.get_first_row();
	}
	else if (uid === 'LAST') {
	uid = list.get_last_row();
	}

	if (uid && list.rows[uid]) {
	list.select(uid);
	}

	delete this.env.list_uid;

	// trigger 'select' so all dependent actions update its state
	list.triggerEvent('select');
	}

	if (list.rowcount > 0 && !$(document.activeElement).is('input,textarea'))
	list.focus();

	this.triggerEvent('listupdate', { list:list, folder:this.env.source, rowcount:list.rowcount });
	}
	}
	break;

	case 'list-contacts':
	case 'search-contacts':
	if (this.contact_list) {
	if (this.contact_list.rowcount > 0)
	this.contact_list.focus();
	this.triggerEvent('listupdate', { list:this.contact_list, rowcount:this.contact_list.rowcount });
	}
	break;
	}

	if (response.unlock)
	this.hide_message(response.unlock);

	this.triggerEvent('responseafter', {response: response});
	this.triggerEvent('responseafter'+response.action, {response: response});

	// reset keep-alive interval
	this.start_keepalive();
	};

	// handle HTTP request errors
	this.http_error = function(request, status, err, lock, action)
	{
	var errmsg = request.statusText;

	this.set_busy(false, null, lock);
	request.abort();

	// don't display error message on page unload (#1488547)
	if (this.unload)
	return;

	if (request.status && errmsg)
	this.display_message(this.get_label('servererror') + ' (' + errmsg + ')', 'error');
	else if (status == 'timeout')
	this.display_message('requesttimedout', 'error');
	else if (request.status == 0 && status != 'abort')
	this.display_message('connerror', 'error');

	// redirect to url specified in location header if not empty
	var location_url = request.getResponseHeader("Location");
	if (location_url && this.env.action != 'compose') // don't redirect on compose screen, contents might get lost (#1488926)
	this.redirect(location_url);

	// 403 Forbidden response (CSRF prevention) - reload the page.
	// In case there's a new valid session it will be used, otherwise
	// login form will be presented (#1488960).
	if (request.status == 403) {
	(this.is_framed() ? parent : window).location.reload();
	return;
	}

	// re-send keep-alive requests after 30 seconds
	if (action == 'keep-alive')
	setTimeout(function() { ref.keep_alive(); ref.start_keepalive(); }, 30000);
	};

	// handler for session errors detected on the server
	this.session_error = function(redirect_url)
	{
	this.env.server_error = 401;

	// save message in local storage and do not redirect
	if (this.env.action == 'compose') {
	this.save_compose_form_local();
	this.compose_skip_unsavedcheck = true;
	// stop keep-alive and refresh processes
	this.env.session_lifetime = 0;
	if (this._keepalive)
	clearInterval(this._keepalive);
	if (this._refresh)
	clearInterval(this._refresh);
	}
	else if (redirect_url) {
	setTimeout(function() { ref.redirect(redirect_url, true); }, 2000);
	}
	};

	// callback when an iframe finished loading
	this.iframe_loaded = function(unlock)
	{
	if (!unlock)
	unlock = this.env.frame_lock;

	this.set_busy(false, null, unlock);

	if (this.submit_timer)
	clearTimeout(this.submit_timer);
	};

	/**
	Send multi-threaded parallel HTTP requests to the server for a list if items.
	The string '%' in either a GET query or POST parameters will be replaced with the respective item value.
	This is the argument object expected: {
	items: ['foo','bar','gna'], // list of items to send requests for
	action: 'task/some-action', // Roundcube action to call
	query: { q:'%s' }, // GET query parameters
	postdata: { source:'%s' }, // POST data (sends a POST request if present)
	threads: 3, // max. number of concurrent requests
	onresponse: function(data){ }, // Callback function called for every response received from server
	whendone: function(alldata){ } // Callback function called when all requests have been sent
	}
	*/
	this.multi_thread_http_request = function(prop)
	{
	var i, item, reqid = new Date().getTime(),
	threads = prop.threads \|\| 1;

	prop.reqid = reqid;
	prop.running = 0;
	prop.requests = [];
	prop.result = [];
	prop._items = $.extend([], prop.items); // copy items

	if (!prop.lock)
	prop.lock = this.display_message('', 'loading');

	// add the request arguments to the jobs pool
	this.http_request_jobs[reqid] = prop;

	// start n threads
	for (i=0; i < threads; i++) {
	item = prop._items.shift();
	if (item === undefined)
	break;

	prop.running++;
	prop.requests.push(this.multi_thread_send_request(prop, item));
	}

	return reqid;
	};

	// helper method to send an HTTP request with the given iterator value
	this.multi_thread_send_request = function(prop, item)
	{
	var k, postdata, query;

	// replace %s in post data
	if (prop.postdata) {
	postdata = {};
	for (k in prop.postdata) {
	postdata[k] = String(prop.postdata[k]).replace('%s', item);
	}
	postdata._reqid = prop.reqid;
	}
	// replace %s in query
	else if (typeof prop.query == 'string') {
	query = prop.query.replace('%s', item);
	query += '&_reqid=' + prop.reqid;
	}
	else if (typeof prop.query == 'object' && prop.query) {
	query = {};
	for (k in prop.query) {
	query[k] = String(prop.query[k]).replace('%s', item);
	}
	query._reqid = prop.reqid;
	}

	// send HTTP GET or POST request
	return postdata ? this.http_post(prop.action, postdata) : this.http_request(prop.action, query);
	};

	// callback function for multi-threaded http responses
	this.multi_thread_http_response = function(data, reqid)
	{
	var prop = this.http_request_jobs[reqid];
	if (!prop \|\| prop.running <= 0 \|\| prop.cancelled)
	return;

	prop.running--;

	// trigger response callback
	if (prop.onresponse && typeof prop.onresponse == 'function') {
	prop.onresponse(data);
	}

	prop.result = $.extend(prop.result, data);

	// send next request if prop.items is not yet empty
	var item = prop._items.shift();
	if (item !== undefined) {
	prop.running++;
	prop.requests.push(this.multi_thread_send_request(prop, item));
	}
	// trigger whendone callback and mark this request as done
	else if (prop.running == 0) {
	if (prop.whendone && typeof prop.whendone == 'function') {
	prop.whendone(prop.result);
	}

	this.set_busy(false, '', prop.lock);

	// remove from this.http_request_jobs pool
	delete this.http_request_jobs[reqid];
	}
	};

	// abort a running multi-thread request with the given identifier
	this.multi_thread_request_abort = function(reqid)
	{
	var prop = this.http_request_jobs[reqid];
	if (prop) {
	for (var i=0; prop.running > 0 && i < prop.requests.length; i++) {
	if (prop.requests[i].abort)
	prop.requests[i].abort();
	}

	prop.running = 0;
	prop.cancelled = true;
	this.set_busy(false, '', prop.lock);
	}
	};

	// post the given form to a hidden iframe
	this.async_upload_form = function(form, action, onload)
	{
	// create hidden iframe
	var ts = new Date().getTime(),
	frame_name = 'rcmupload' + ts,
	frame = this.dummy_iframe(frame_name);

	// handle upload errors by parsing iframe content in onload
	frame.on('load', {ts:ts}, onload);

	$(form).attr({
	target: frame_name,
	action: this.url(action, {_id: this.env.compose_id \|\| '', _uploadid: ts, _from: this.env.action}),
	method: 'POST',
	enctype: 'multipart/form-data'
	})
	.submit();

	return frame_name;
	};

	// create hidden iframe element
	this.dummy_iframe = function(name, src)
	{
	return $('<iframe>').attr({
	name: name,
	src: src,
	style: 'width:0;height:0;visibility:hidden',
	'aria-hidden': 'true'
	})
	.appendTo(document.body);
	};

	// html5 file-drop API
	this.document_drag_hover = function(e, over)
	{
	// don't e.preventDefault() here to not block text dragging on the page (#1490619)
	$(this.gui_objects.filedrop)[(over?'addClass':'removeClass')]('active');
	};

	this.file_drag_hover = function(e, over)
	{
	e.preventDefault();
	e.stopPropagation();
	$(this.gui_objects.filedrop)[(over?'addClass':'removeClass')]('hover');
	};

	// handler when files are dropped to a designated area.
	// compose a multipart form data and submit it to the server
	this.file_dropped = function(e)
	{
	// abort event and reset UI
	this.file_drag_hover(e, false);

	// prepare multipart form data composition
	var uri,
	files = e.target.files \|\| e.dataTransfer.files,
	args = {_id: this.env.compose_id \|\| this.env.cid \|\| '', _remote: 1, _from: this.env.action};

	if (!files \|\| !files.length) {
	// Roundcube attachment, pass its uri to the backend and attach
	if (uri = e.dataTransfer.getData('roundcube-uri')) {
	var ts = 'upload' + new Date().getTime(),
	// jQuery way to escape filename (#1490530)
	content = $('<span>').text(e.dataTransfer.getData('roundcube-name') \|\| this.get_label('attaching')).html();

	args._uri = uri;
	args._uploadid = ts;

	// add to attachments list
	if (!this.add2attachment_list(ts, {name: '', html: content, classname: 'uploading', complete: false}))
	this.file_upload_id = this.set_busy(true, 'attaching');

	this.http_post(this.env.filedrop.action \|\| 'upload', args);
	}

	return;
	}

	this.file_upload(files, args, {
	name: (this.env.filedrop.fieldname \|\| '_file') + (this.env.filedrop.single ? '' : '[]'),
	single: this.env.filedrop.single,
	filter: this.env.filedrop.filter,
	action: ref.env.filedrop.action
	});
	};

	// Files upload using ajax
	this.file_upload = function(files, post_args, props)
	{
	if (!window.FormData \|\| !files \|\| !files.length)
	return false;

	var f, i, fname, size = 0, numfiles = 0,
	formdata = new FormData(),
	fieldname = props.name \|\| '_file[]',
	limit = props.single ? 1 : files.length;
	args = $.extend({_remote: 1, _from: this.env.action}, post_args \|\| {});

	// add files to form data
	for (i=0; numfiles < limit && (f = files[i]); i++) {
	// filter by file type if requested
	if (props.filter && !f.type.match(new RegExp(props.filter))) {
	// TODO: show message to user
	continue;
	}

	formdata.append(fieldname, f);
	size += f.size;
	fname = f.name;
	numfiles++;
	}

	if (numfiles) {
	if (this.env.max_filesize && this.env.filesizeerror && size > this.env.max_filesize) {
	this.display_message(this.env.filesizeerror, 'error');
	return false;
	}

	if (this.env.max_filecount && this.env.filecounterror && numfiles > this.env.max_filecount) {
	this.display_message(this.env.filecounterror, 'error');
	return false;
	}

	var ts = 'upload' + new Date().getTime(),
	label = numfiles > 1 ? this.get_label('uploadingmany') : fname,
	// jQuery way to escape filename (#1490530)
	content = $('<span>').text(label).html();

	// add to attachments list
	if (!this.add2attachment_list(ts, {name: '', html: content, classname: 'uploading', complete: false}) && !props.lock)
	props.lock = this.file_upload_id = this.set_busy(true, 'uploading');

	args._uploadid = ts;
	args._unlock = props.lock;

	this.uploads[ts] = $.ajax({
	type: 'POST',
	dataType: 'json',
	url: this.url(props.action \|\| 'upload', args),
	contentType: false,
	processData: false,
	timeout: this.uploadTimeout, // ajax call timeout for loading attachment
	data: formdata,
	headers: {'X-Roundcube-Request': this.env.request_token},
	xhr: function() {
	var xhr = $.ajaxSettings.xhr();
	if (xhr.upload && ref.labels.uploadprogress) {
	xhr.upload.onprogress = function(e) {
	var msg = ref.file_upload_msg(e.loaded, e.total);
	if (msg) {
	$('#' + ts).find('.uploading').text(msg);
	}
	};
	}
	return xhr;
	},
	success: function(data) {
	delete ref.uploads[ts];
	ref.http_response(data);
	},
	error: function(o, status, err) {
	delete ref.uploads[ts];
	ref.remove_from_attachment_list(ts);
	ref.http_error(o, status, err, props.lock, 'attachment');
	}
	});
	}

	return true;
	};

	this.file_upload_msg = function(current, total)
	{
	if (total && current < total) {
	var percent = Math.round(current/total * 100),
	label = ref.get_label('uploadprogress');

	if (total >= 1073741824) {
	total = parseFloat(total/1073741824).toFixed(1) + ' ' . this.get_label('GB');
	current = parseFloat(current/1073741824).toFixed(1);
	}
	else if (total >= 1048576) {
	total = parseFloat(total/1048576).toFixed(1) + ' ' + this.get_label('MB');
	current = parseFloat(current/1048576).toFixed(1);
	}
	else if (total >= 1024) {
	total = parseInt(total/1024) + ' ' + this.get_label('KB');
	current = parseInt(current/1024);
	}
	else {
	total = total + ' ' + this.get_label('B');
	}

	return label.replace('$percent', percent + '%').replace('$current', current).replace('$total', total);
	}
	};

	// starts interval for keep-alive signal
	this.start_keepalive = function()
	{
	if (!this.env.session_lifetime \|\| this.env.framed \|\| this.env.extwin \|\| this.task == 'login' \|\| this.env.action == 'print')
	return;

	if (this._keepalive)
	clearInterval(this._keepalive);

	// use Math to prevent from an integer overflow (#5273)
	// maximum interval is 15 minutes, minimum is 30 seconds
	var interval = Math.min(1800, this.env.session_lifetime) * 0.5 * 1000;
	this._keepalive = setInterval(function() { ref.keep_alive(); }, interval < 30000 ? 30000 : interval);
	};

	// starts interval for refresh signal
	this.start_refresh = function()
	{
	if (!this.env.refresh_interval \|\| this.env.framed \|\| this.env.extwin \|\| this.task == 'login' \|\| this.env.action == 'print')
	return;

	if (this._refresh)
	clearInterval(this._refresh);

	this._refresh = setInterval(function(){ ref.refresh(); }, this.env.refresh_interval * 1000);
	};

	// sends keep-alive signal
	this.keep_alive = function()
	{
	if (!this.busy)
	this.http_request('keep-alive');
	};

	// sends refresh signal
	this.refresh = function()
	{
	if (this.busy) {
	// try again after 10 seconds
	setTimeout(function() { ref.refresh(); ref.start_refresh(); }, 10000);
	return;
	}

	var params = {}, lock = this.set_busy(true, 'refreshing');

	if (this.task == 'mail' && this.gui_objects.mailboxlist)
	params = this.check_recent_params();

	params._last = Math.floor(this.env.lastrefresh.getTime() / 1000);
	this.env.lastrefresh = new Date();

	// plugins should bind to 'requestrefresh' event to add own params
	this.http_post('refresh', params, lock);
	};

	// returns check-recent request parameters
	this.check_recent_params = function()
	{
	var params = {_mbox: this.env.mailbox};

	if (this.gui_objects.mailboxlist)
	params._folderlist = 1;
	if (this.gui_objects.quotadisplay)
	params._quota = 1;
	if (this.env.search_request)
	params._search = this.env.search_request;

	if (this.gui_objects.messagelist) {
	params._list = 1;

	// message uids for flag updates check
	params._uids = $.map(this.message_list.rows, function(row, uid) { return uid; }).join(',');
	}

	return params;
	};


	/********************************************************/
	/******* helper methods *******/
	/********************************************************/

	/**
	* Quote html entities
	*/
	this.quote_html = function(str)
	{
	return String(str).replace(/</g, '<').replace(/>/g, '>').replace(/"/g, '"');
	};

	// get window.opener.rcmail if available
	this.opener = function(deep, filter)
	{
	var i, win = window.opener;

	// catch Error: Permission denied to access property rcmail
	try {
	if (win && !win.closed && win !== window) {
	// try parent of the opener window, e.g. preview frame
	if (deep && (!win.rcmail \|\| win.rcmail.env.framed) && win.parent && win.parent.rcmail)
	win = win.parent;

	if (win.rcmail && filter)
	for (i in filter)
	if (win.rcmail.env[i] != filter[i])
	return;

	return win.rcmail;
	}
	}
	catch (e) {}
	};

	// check if we're in show mode or if we have a unique selection
	// and return the message uid
	this.get_single_uid = function()
	{
	var uid = this.env.uid \|\| (this.message_list ? this.message_list.get_single_selection() : null);
	var result = ref.triggerEvent('get_single_uid', { uid: uid });
	return result \|\| uid;
	};

	// same as above but for contacts
	this.get_single_cid = function()
	{
	var cid = this.env.cid \|\| (this.contact_list ? this.contact_list.get_single_selection() : null);
	var result = ref.triggerEvent('get_single_cid', { cid: cid });
	return result \|\| cid;
	};

	// get the IMP mailbox of the message with the given UID
	this.get_message_mailbox = function(uid)
	{
	var msg;

	if (this.env.messages && uid && (msg = this.env.messages[uid]) && msg.mbox)
	return msg.mbox;

	if (/^[0-9]+-(.*)$/.test(uid))
	return RegExp.$1;

	return this.env.mailbox;
	};

	// build request parameters from single message id (maybe with mailbox name)
	this.params_from_uid = function(uid, params)
	{
	if (!params)
	params = {};

	params._uid = String(uid).split('-')[0];
	params._mbox = this.get_message_mailbox(uid);

	return params;
	};

	// gets cursor position
	this.get_caret_pos = function(obj)
	{
	if (obj.selectionEnd !== undefined)
	return obj.selectionEnd;

	return obj.value.length;
	};

	// moves cursor to specified position
	this.set_caret_pos = function(obj, pos)
	{
	try {
	if (obj.setSelectionRange)
	obj.setSelectionRange(pos, pos);
	}
	catch(e) {} // catch Firefox exception if obj is hidden
	};

	// get selected text from an input field
	this.get_input_selection = function(obj)
	{
	var start = 0, end = 0, normalizedValue = '';

	if (typeof obj.selectionStart == "number" && typeof obj.selectionEnd == "number") {
	normalizedValue = obj.value;
	start = obj.selectionStart;
	end = obj.selectionEnd;
	}

	return {start: start, end: end, text: normalizedValue.substr(start, end-start)};
	};

	// disable/enable all fields of a form
	this.lock_form = function(form, lock)
	{
	if (!form \|\| !form.elements)
	return;

	if (lock)
	this.disabled_form_elements = [];

	$.each(form.elements, function() {
	if (this.type == 'hidden')
	return;
	// remember which elem was disabled before lock
	if (lock && this.disabled)
	ref.disabled_form_elements.push(this);
	else if (lock \|\| $.inArray(this, ref.disabled_form_elements) < 0)
	this.disabled = lock;
	});
	};

	this.mailto_handler_uri = function()
	{
	return location.href.split('?')[0] + '?_task=mail&_action=compose&_to=%s';
	};

	this.register_protocol_handler = function(name)
	{
	try {
	window.navigator.registerProtocolHandler('mailto', this.mailto_handler_uri(), name);
	}
	catch(e) {
	this.display_message(String(e), 'error');
	}
	};

	this.check_protocol_handler = function(name, elem)
	{
	var nav = window.navigator;

	if (!nav \|\| (typeof nav.registerProtocolHandler != 'function')) {
	$(elem).addClass('disabled').click(function() {
	ref.display_message('nosupporterror', 'error');
	return false;
	});
	}
	else if (typeof nav.isProtocolHandlerRegistered == 'function') {
	var status = nav.isProtocolHandlerRegistered('mailto', this.mailto_handler_uri());
	if (status)
	$(elem).parent().find('.mailtoprotohandler-status').html(status);
	}
	else {
	$(elem).click(function() { ref.register_protocol_handler(name); return false; });
	}
	};

	// Checks browser capabilities e.g. PDF support, TIF support
	this.browser_capabilities_check = function()
	{
	if (!this.env.browser_capabilities)
	this.env.browser_capabilities = {};

	$.each(['pdf', 'flash', 'tiff', 'webp', 'pgpmime'], function() {
	if (ref.env.browser_capabilities[this] === undefined)
	ref.env.browser_capabilities[this] = ref[this + '_support_check']();
	});
	};

	// Returns browser capabilities string
	this.browser_capabilities = function()
	{
	if (!this.env.browser_capabilities)
	return '';

	var n, ret = [];

	for (n in this.env.browser_capabilities)
	ret.push(n + '=' + this.env.browser_capabilities[n]);

	return ret.join();
	};

	this.tiff_support_check = function()
	{
	this.image_support_check('tiff');
	return 0;
	};

	this.webp_support_check = function()
	{
	this.image_support_check('webp');
	return 0;
	};

	this.image_support_check = function(type)
	{
	setTimeout(function() {
	var img = new Image();
	img.onload = function() { ref.env.browser_capabilities[type] = 1; };
	img.onerror = function() { ref.env.browser_capabilities[type] = 0; };
	img.src = ref.assets_path('program/resources/blank.' + type);
	}, 10);
	};

	this.pdf_support_check = function()
	{
	var i, plugin = navigator.mimeTypes ? navigator.mimeTypes["application/pdf"] : {},
	plugins = navigator.plugins,
	len = plugins.length,
	regex = /Adobe Reader\|PDF\|Acrobat/i;

	if (plugin && plugin.enabledPlugin)
	return 1;

	if ('ActiveXObject' in window) {
	try {
	if (plugin = new ActiveXObject("AcroPDF.PDF"))
	return 1;
	}
	catch (e) {}
	try {
	if (plugin = new ActiveXObject("PDF.PdfCtrl"))
	return 1;
	}
	catch (e) {}
	}

	for (i=0; i<len; i++) {
	plugin = plugins[i];
	if (typeof plugin === 'string') {
	if (regex.test(plugin))
	return 1;
	}
	else if (plugin.name && regex.test(plugin.name))
	return 1;
	}

	setTimeout(function() {
	$('<object>').attr({
	data: ref.assets_path('program/resources/dummy.pdf'),
	type: 'application/pdf',
	style: 'position: "absolute"; top: -1000px; height: 1px; width: 1px'
	})
	.on('load error', function(e) {
	ref.env.browser_capabilities.pdf = e.type == 'load' ? 1 : 0;

	// add a short delay before attempting to remove element (#8128)
	var obj = this;
	setTimeout(function() { $(obj).remove(); }, 10);
	})
	.appendTo(document.body);
	}, 10);

	return 0;
	};

	this.flash_support_check = function()
	{
	var plugin = navigator.mimeTypes ? navigator.mimeTypes["application/x-shockwave-flash"] : {};

	if (plugin && plugin.enabledPlugin)
	return 1;

	if ('ActiveXObject' in window) {
	try {
	if (plugin = new ActiveXObject("ShockwaveFlash.ShockwaveFlash"))
	return 1;
	}
	catch (e) {}
	}

	return 0;
	};

	// check for mailvelope API
	this.pgpmime_support_check = function(action)
	{
	if (window.mailvelope)
	return 1;

	$(window).on('mailvelope', function() {
	ref.env.browser_capabilities['pgpmime'] = 1;
	});

	return 0;
	};

	this.assets_path = function(path)
	{
	if (this.env.assets_path && !path.startsWith(this.env.assets_path)) {
	path = this.env.assets_path + path;
	}

	return path;
	};

	// Cookie setter
	this.set_cookie = function(name, value, expires)
	{
	if (expires === false) {
	var expires = new Date();
	expires.setYear(expires.getFullYear() + 1);
	}

	setCookie(name, value, expires, this.env.cookie_path, this.env.cookie_domain, this.env.cookie_secure);
	};

	this.get_local_storage_prefix = function()
	{
	if (!this.local_storage_prefix)
	this.local_storage_prefix = 'roundcube.' + (this.env.user_id \|\| 'anonymous') + '.';

	return this.local_storage_prefix;
	};

	// wrapper for localStorage.getItem(key)
	this.local_storage_get_item = function(key, deflt, encrypted)
	{
	var item, result;

	// TODO: add encryption
	try {
	item = localStorage.getItem(this.get_local_storage_prefix() + key);
	result = JSON.parse(item);
	}
	catch (e) { }

	return result \|\| deflt \|\| null;
	};

	// wrapper for localStorage.setItem(key, data)
	this.local_storage_set_item = function(key, data, encrypted)
	{
	// try/catch to handle no localStorage support, but also error
	// in Safari-in-private-browsing-mode where localStorage exists
	// but can't be used (#1489996)
	try {
	// TODO: add encryption
	localStorage.setItem(this.get_local_storage_prefix() + key, JSON.stringify(data));
	return true;
	}
	catch (e) {
	return false;
	}
	};

	// wrapper for localStorage.removeItem(key)
	this.local_storage_remove_item = function(key)
	{
	try {
	localStorage.removeItem(this.get_local_storage_prefix() + key);
	return true;
	}
	catch (e) {
	return false;
	}
	};

	this.print_dialog = function()
	{
	// setTimeout for Safari
	setTimeout('window.print()', 10);
	};
	} // end object rcube_webmail


	// some static methods
	rcube_webmail.long_subject_title = function(elem, indent, text_elem)
	{
	if (!elem.title) {
	var $elem = $(text_elem \|\| elem);
	if ($elem.width() + (indent \|\| 0) * 15 > $elem.parent().width())
	elem.title = rcube_webmail.subject_text($elem[0]);
	}
	};

	rcube_webmail.long_subject_title_ex = function(elem)
	{
	if (!elem.title) {
	var $elem = $(elem),
	txt = $elem.text().trim(),
	indent = $('span.branch', $elem).width() \|\| 0,
	tmp = $('<span>').text(txt)
	.css({position: 'absolute', 'float': 'left', visibility: 'hidden',
	'font-size': $elem.css('font-size'), 'font-weight': $elem.css('font-weight')})
	.appendTo(document.body),
	w = tmp.width();

	tmp.remove();
	if (w + indent * 15 > $elem.width())
	elem.title = rcube_webmail.subject_text(elem);
	}
	};

	rcube_webmail.subject_text = function(elem)
	{
	var t = $(elem).clone();
	t.find('.skip-on-drag,.skip-content,.voice').remove();
	return t.text().trim();
	};

	// set event handlers on all iframe elements (and their contents)
	rcube_webmail.set_iframe_events = function(events)
	{
	$('iframe').each(function() {
	var frame = $(this);
	$.each(events, function(event_name, event_handler) {
	frame.on('load', function(e) {
	try { $(this).contents().on(event_name, event_handler); }
	catch (e) {/* catch possible permission error in IE */ }
	});

	try { frame.contents().on(event_name, event_handler); }
	catch (e) {/* catch possible permission error in IE */ }
	});
	});
	};

	rcube_webmail.prototype.get_cookie = getCookie;

	// copy event engine prototype
	rcube_webmail.prototype.addEventListener = rcube_event_engine.prototype.addEventListener;
	rcube_webmail.prototype.removeEventListener = rcube_event_engine.prototype.removeEventListener;
	rcube_webmail.prototype.triggerEvent = rcube_event_engine.prototype.triggerEvent;

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