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	diff --git a/CHANGELOG b/CHANGELOG
	index 02fe0e2ce..dea6c1993 100644
	--- a/CHANGELOG
	+++ b/CHANGELOG
	@@ -1,1459 +1,1461 @@
	CHANGELOG Roundcube Webmail
	===========================

	+- Improved keep-alive action. Now the interval is based on session_lifetime
	+- Added cross-task 'refresh' request for system state updates
	- Fix AREA links handling (#1488792)
	- Better client-side timezone detection using the jsTimezoneDetect library (#1488725)
	- Fix possible HTTP DoS on error in keep-alive requests (#1488782)
	- Add option to disable saving sent mail in Sent folder - no_save_sent_messages (#1488686)
	- Fix handling dont_override with message_sort_col and message_sort_order settings (#1488760)
	- Fix HTML part detection in messages with attachments (#1488769)
	- Fix bug where wrong words were highlighted on spell-before-send check
	- Fix handling of URLs with asterisk characters (#1488759)
	- Remove automatic to-lowercase conversion of usernames (#1488715)
	- Fix scrolling quirk in email preview frame using Opera 12 (#1488763)
	- Fix displaying of multipart/alternative messages with empty parts (#1488750)
	- Fix threaded list sorting on PHP < 5.2.9 (#1488748)
	- Plugin API: Add 'email_list' argument for identities data in user_create hook
	- Integrated zipdownload plugin to download all attachments (#1445509)
	- Fix HTML special characters handling in message list/header display (#1488523)
	- List related text/html part as attachment in plain text mode (#1488677)
	- Use IMAP BINARY (RFC3516) extension to fetch message/part bodies
	- Fix folder creation under public namespace root (#1488665)
	- Fix so "Edit as new" on draft creates a new message (#1488687)
	- Fix invalid error message on deleting mail from read only folder (#1488694)
	- Replace data URIs of images (pasted in HTML editor) with inline attachments (#1488502)
	- Remove (too big) min-width on mail screen
	- Added template object 'frame'
	- Add option to enable HTML editor on forwarding (#1488517)
	- Add option to not include original message on reply, rename option top_posting to reply_mode (#1485149)
	- 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 (#1488332)
	- Removed PEAR::MDB2 package
	- Removed users.alias column, added option ('user_aliases')
	to use email address from identities as username (#1488581)
	- Removed redundant cache.cache_id column (#1488528)
	- Fix order of attachments in sent mail (#1488423)
	- Fix Shift + delete button does not permanently delete messages (#1488243)
	- Add Content-Length for attachments where possible (#1485478)
	- Fix attachment sizes in message print page and attachment preview page (#1488515)
	- Add mail attachments using drag & drop on HTML5 enabled browsers
	- Add workaround for invalid BODYSTRUCTURE response - parse message with Mail_mimeDecode package (#1485585)
	- Display Tiff as Jpeg in browsers without Tiff support (#1488452)
	- Don't display Pdf/Tiff/Flash attachments inline without browser support (#1488452, #1487929)
	- Add is_escaped attribute for html_select and html_textarea (#1488485)
	- Fix issue where draft auto-save wasn't executed after some inactivity time
	- Add vCard import from multiple files at once (#1488015)
	- 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)
	Move global functions from main.inc and rcube_shared.inc into classes
	Better classes separation

	RELEASE 0.8.2
	-------------
	- Fix XSS vulnerability from HTTP User-Agent header (#1488737)
	- Force fonts in compose fields to be all the same (#1488690)
	- Fix handling vCard entries with TEL;TYPE=CELL (#1488728)
	- Fix error where session wasn't updated after folder rename/delete (#1488692)
	- Fix PLAIN authentication for some IMAP servers (#1488674)
	- Fix encoding vCard file when contains PHOTO;ENCODING=b (#1488683)
	- Fix focus issue in IE when selecting message row (#1488620)
	- Add full headers view in message preview window (#1488538)
	- Fix message display page issues - unified with message preview (#1488590, #1488642)
	- Fix displaying all headers when they contain malformed characters (#1488666)
	- Fix decoding of HTML messages with UTF-16 charset specified (#1488654)
	- Fix quota capability detection so it can be overwritten by a plugin (#1488655)
	- Fix identity selection on reply (#1488101)
	- Fix Larry's messages list filter in IE (#1488632)
	- Fix more IE issues by disabling Compat. mode with X-UA-Compatible meta tag (#1488626)
	- Fix setting locales under Solaris - use additional .UTF-8 suffix (#1488628)
	- Fix email address validation for addresses with IP address in domain part
	- Fix Larry skin issues in IE7 compat. mode (#1488618)
	- 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 (#1488593)
	- Fix lower-casing email address on replies (#1488598)
	- Fix line separator in exported messages (#1488603)
	- Fix XSS issue where plain signatures wasn't secured in HTML mode (#1488613)
	- Fix XSS issue where href="javascript:" wasn't secured (#1488613)
	- Fix impossible to create message with empty plain text part (#1488610)
	- Fix stripped apostrophes when replying in plain text to HTML message (#1488606)
	- Fix inactive Save search option after advanced search (#1488607)
	- Fix Remove from group option is active for contact search result (#1488608)
	- Disable autocapitalization in login form on iPad/iPhone (#1488609)
	- Fix focus on the list when list row is clicked (#1488600)
	- Added separate From and To columns apart from smart From/To column (#1486891)
	- Fix fallback to Larry skin when configured skin isn't available (#1488591)
	- Fix (workaround) delete operations with some versions of memcache (#1488592)
	- 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 (#1488577)
	- Enable TinyMCE inlinepopups plugin
	- Update to TinyMCE 3.5.6
	- Correctly escape localized labels in javascript variable (#1488567)
	- Update Net_SMTP/Auth_SASL packages to fix Digest-MD5/Cram-MD5 authentication (#1488571)
	- Don't add attachments content into reply/forward/draft message body (#1488557)
	- Fix 'no connection' errors on page unloads (#1488547)
	- Plugin API: Add 'unauthenticated' hook (#1488138)
	- Show explicit error message when provided hostname is invalid (#1488550)
	- Fix wrong compose screen elements focus in IE9 (#1488541)
	- Fix fatal error when date.timezone isn't set (#1488546)
	- Update to TinyMCE 3.5.4.1
	- Better icons with distinct shapes for priority columns (#1488377)
	- Show dedicated icon for multipart/report messages (#1488524)
	- Properly hide text of icon links/buttons (#1488534)
	- Fix handling of unitless CSS size values in HTML message (#1488535)
	- Fix removing contact photo using LDAP addressbook (#1488420)
	- Fix storing X-ANNIVERSARY date in vCard format (#1488527)
	- Update to Mail_Mime-1.8.5 (#1488521)
	- Fix XSS vulnerability in message subject handling using Larry skin (#1488519)
	- Fix handling of links with various URI schemes e.g. "skype:" (#1488106)
	- 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 (#1488511)
	- Fix errors with enabled PHP magic_quotes_sybase option (#1488506)
	- Fix SQL query for contacts listing on MS SQL Server (#1488505)
	- Fix window.resize handler on IE8 and Opera (#1488453)
	- Don't let error message popups cover the login form (#1488500)
	- Update to TinyMCE 3.5.2
	- Don't show errors when moving contacts into groups they are already in (#1488493)
	- Make folders with unread messages in subfolders bold again (#1486793)
	- Abbreviate long attachment file names with ellipsis (#1488499)
	- Fix html2text conversion of strong\|b\|a\|th\|h tags when used in upper case
	- Add listcontrols template container in Larry skin (#1488498)
	- Fix host autoselection when default_host is an array (#1488495)
	- Move messages forwarding mode setting into Preferences
	- Fix HTML entities handling in HTML editor (#1488483)
	- Fix listing shared folders on Courier IMAP (#1488466)

	RELEASE 0.8-rc
	--------------
	- Added new translations in Belarusian, Interlingua and Malayalam
	- Flipped compose options arrow (#1488474)
	- Fix handling of large uuencode attachments (#1488473)
	- Fix handling of "usemap" attribute (#1488472)
	- Fix handling of some HTML tags e.g. IMG (#1488471)
	- Use similar language as a fallback for plugin localization (#1488401)
	- Fix issue where signature wasn't re-added on draft compose (#1488322)
	- Update to TinyMCE 3.5 (#1488459)
	- 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 (#1488449)
	- Fix redirect to mail/compose on re-login (#1488226)
	- Add IE8 hack for messages list issue (#1487821)
	- Fix handling errors on draft auto-save
	- Fix importing vCard photo with ENCODING param specified (#1488432)
	- Support mutliple name/email pairs for Bcc and Reply-To identity settings (#1488445)
	- Set flexible width to login form fields (#1488418)
	- Fix re-draw bug on list columns change in IE8 (#1487822)
	- Allow mass-removal of addresses from a group (#1487748)
	- Fix removing all contacts on import to LDAP addressbook
	- Fix so "Back" from compose/show doesn't reset search request (#1488238)
	- Add option to delete messages instead of moving to Trash when in Junk folder (#1486686)
	- Fix invisible cursor when replying to a html message (#1487073)
	- Reset IP stored in session when destroying session data (#1488056)
	- Fix bug where memory_limit = -1 wasn't handled properly
	- Support LDAP RFC2256's country object class read/write (#1488123)
	- Upgraded to jQuery 1.7.2
	- Image resize with GD extension (#1488383)
	- Fix lack of warning when switching task in compose window (#1488399)
	- Fix bug where it wasn't possible to enter ( or & characters in autocomplete fields
	- Request all needed fields from address book backends (#1488394)
	- Unified (single) spellchecker button
	- Scroll long lists on drag&drop (#1485946)
	- Copy all skins in installto script (#1488376)

	RELEASE 0.8-beta
	----------------
	- Upgraded to jQuery 1.7.1 (#1488337) and jQuery UI 1.8.18
	- Add Russian to the spellchecker languages list (#1488135)
	- Remember custom skin selection after logout (#1488355)
	- Make sure About tab is always the last tab (#1488257)
	- Fix issue with folder creation under INBOX. namespace (#1488349)
	- Added mailto: protocol handler registration link in User Preferences (#1486580)
	- Handle identity details box with an iframe (#1487020)
	- Fix issue where some text from original message was missing on reply (#1488340)
	- Fix autoselect_host() for login (#1488297)
	- 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 (#1485592)
	- Add separate pagesize setting for mail messages and contacts (#1488269)
	- Deprecate $DB, $USER, $IMAP global variables, Use $RCMAIL instead
	- Add option to set default font for HTML message (#1484137)
	- Fix issues with big memory allocation of IMAP results
	- Prevent from memory_limit exceeding when trying to parse big messages bodies (#1487424)
	- Add possibility to add SASL mechanisms for SMTP in smtp_connect hook (#1487937)
	- Mark (with different color) folders with recent messages (#1486234)
	- Added About tab in Settings
	- TinyMCE updated to 3.4.6

	RELEASE 0.7.2
	-------------
	- Fix encoding of attachment with comma in name (#1488389)
	- Fix handling of % character in IMAP protocol (#1488382)
	- Fix duplicate names handling in addressbook searches (#1488375)
	- Fix displaying of HTML messages from Disqus (#1488372)
	- Disable E_STRICT warnings on PHP 5.4
	- Prevent from folder selection on virtual folder collapsing (#1488346)
	- 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 (#1488327)
	- Add lost translation label in de_DE (#1488315)
	- Fix drafts update issues when edited from preview pane (#1488314)
	- Fix wrong variable name in rcube_ldap.php (#1488302)
	- 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 (#1488300)


	RELEASE 0.7.1
	-------------
	- Fix bug in handling of base href and inline content (#1488290)
	- Fix SQL Error when saving a contact with many email addresses (#1488286)
	- Fix strict email address searching if contact has more than one address
	- Remove duplicated 'organization' label (#1488287)
	- Fix so editor selector is hidden when 'htmleditor' is listed in 'dont_override'
	- Fix wrong (long) label usage (#1488283)
	- Fix handling of INBOX's subfolders in special folders config (#1488279)
	- Add ifModule statement for setting Options -Indexes in .htaccess file (#1488274)
	- Fix crashes with eAccelerator (#1488256)
	- Fix searching on IMAP servers without CHARSET specifier support (#1488271)
	- Fix expanding folders during drag&drop (#1488260)
	- Fix wrong postgres sequence name in upgrade from 0.6
	- Fix broken CREATE INDEX queries in SQLite DDL files (#1488255)

	RELEASE 0.7
	-----------
	- Make Roundcube render the Email Standards Project Acid Test correctly
	- Replace prompt() with jQuery UI dialog (#1485135)
	- Fix navigation in messages search results
	- Improved handling of some malformed values encoded with quoted-printable (#1488232)
	- Add possibility to do LDAP bind before searching for bind DN
	- Fix handling of empty <U> tags in HTML messages (#1488225)
	- Add content filter for embedded attachments to protect from XSS on IE (#1487895)
	- Use strpos() instead of strstr() when possible (#1488211)
	- Fix handling HTML entities when converting HTML to text (#1488212)
	- Fix fit_string_to_size() renders browser and ui unresponsive (#1488207)
	- Fix handling of invalid characters in request (#1488124)
	- Fix merging some configuration options in update.sh script (#1485864)
	- Fix so TEXT key will remove all HEADER keys in IMAP SEARCH (#1488208)
	- Fix handling contact photo url with https:// prefix (#1488202)
	- Fix possible infinite redirect on attachment preview (#1488199)
	- Improved clickjacking protection for browsers which don't support X-Frame-Options headers
	- Fixed bug where similar folder names were highlighted wrong (#1487860)
	- Fixed bug in handling link with '!' character in it (#1488195)
	- Fixed bug where session ID's length was limited to 40 characters (#1488196)
	- 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 (#1485137)
	- Fix regression in setting recipient to self when replying to a Sent message (#1487074)
	- Fix listing of folders in hidden namespaces (#1486796)
	- Don't consider \Noselect flag when building folders tree (#1488004)
	- Fix sorting autocomplete results (#1488084)
	- Add option to set session name (#1486433)
	- 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 (#1487813)
	- Add option to define matching method for addressbook search (#1486564, #1487907)
	- Make email recipients separator configurable
	- Fix so folders with \Noinferiors attribute aren't listed in parent selector
	- Fix handling of curly brackets in URLs (#1488168)
	- Fix handling of dates (birthday/anniversary) in contact data (#1488147)
	- Fix error on opening searched LDAP contact (#1488144)
	- Fix redundant line break in flowed format (#1488146)
	- Fix IDN address validation issue (#1488137)
	- Fix JS error when dst_active checkbox doesn't exist (#1488133)
	- Autocomplete LDAP records when adding contacts from mail (#1488073)
	- Plugin API: added 'ready' hook (#1488063)
	- Ignore DSN request when it isn't supported by SMTP server (#1487800)
	- Make sure LDAP name fields aren't arrays (#1488108)
	- Fixed imap test to non-default port when using ssl (#1488118)
	- Force all files to be overwritten when updating (#1488117)
	- Fix issue where it wasn't possible to change list view mode in folder manager for INBOX (#1488107)
	- Fix namespace handling in special folders settings (#1488112)
	- Disable time limit for CLI scripts (#1488109)
	- Fix misleading display when chaning editor type (#1488104)
	- Add loading indicator on contact delete
	- Fix bug where after delete message rows can be added to the list of another folder (#1487752)
	- 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 (#1488083)
	- Make date/time format user configurable; drop 'date_today' config option
	- Fix setting title for truncated subject in IE (#1487128)
	- Fix displaying multipart/alternative messages with only one part (#1487938)
	- 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 (#1488021)
	- 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 (#1486782)
	- Localize forwarded message header (#1488058)

	RELEASE 0.6
	-----------
	- Fix bug where the last identity is used on reply (#1488101)
	- Fix locked folder rename option on servers supporting RFC2086 only (#1488089)
	- Fix session race conditions when composing new messages
	- Fix encoding of LDAP contacts identifiers (#1488079)
	- jQuery 1.6.4
	- Fix handling of binary attachments encoded with quoted-printable (#1488065)
	- Fix text-overflow:ellipsis issues on messages list in FF7 and Webkit (#1488061)
	- Fix handling of links with IP address
	- Fix compacting folder resets message list filter (#1488076)

	RELEASE 0.6-rc
	----------------
	- Send X-Frame-Options headers to protect from clickjacking (#1487037)
	- Fallback to mail_domain in LDAP variable replacements; added 'host' to 'user_create' hook arguments (#1488024)
	- Fixed wrong vCard type parameter mobile (#1488067)
	- Fixed vCard WORKFAX issue (#1488046)
	- Add vCard's Profile URL support (#1488062)
	- jQuery 1.6.3
	- Fix imap_cache setting to values other than 'db' (#1488060)
	- Fix handling of attachments inside message/rfc822 parts (#1488026)
	- Make list of mimetypes that open in preview window configurable (#1487625)
	- 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 (#1487981)
	- Add option to hide selected LDAP addressbook on the list
	- Add client-side checking of uploaded files size
	- Add newlines between organization, department, jobtitle (#1488028)
	- Recalculate date when replying to a message and localize the cite header (#1487675)
	- Fix handling of email addresses with quoted local part (#1487939)
	- Fix EOL character in vCard exports (#1487873)
	- Added optional "multithreading" autocomplete feature
	- Plugin API: Added 'config_get' hook
	- Fixed new_user_identity plugin to work with updated rcube_ldap class (#1487994)
	- 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 (#1487747)
	- Add optional textual upload progress indicator (#1486039)
	- Fix parsing URLs containing commas (#1487970)
	- Added vertical splitter for books/groups list in addressbook (#1487923)
	- 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 (#1487944)
	- Added addressbook advanced search
	- Add popup with basic fields selection for addressbook search
	- Case-insensitive matching in autocompletion (#1487933)
	- Added option to force spellchecking before sending a message (#1485458)
	- Fix handling of "<" character in contact data, search fields and folder names (#1487864)
	- Fix saving "<" character in identity name and organization fields (#1487864)
	- 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 performence of folder manager operations
	- Fix default_port option handling in Installer when config.inc.php file exists (#1487925)
	- 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 (#1487910)
	- Add forward-as-attachment feature
	- jQuery-1.6.2 (#1487913, #1487144)
	- Improve display name composition when saving contacts (#1487143)
	- Fix problems with subfolders of INBOX folder on some IMAP servers (#1487725)
	- Fix handling of folders that doesn't belong to any namespace (#1487637)
	- Enable multiselection for attachments uploading in capable browsers (#1485969)
	- Add possibility to change HTML editor configuration by skin
	- Fix a bug where selecting too many contacts would produce too large URI request (#1487892)
	- Improve performance by including files with absolute path (#1487849)
	- Move folder name truncation to client/skin (#1485412)
	- Added plugin hook for request token creation
	- Replace LDAP vars in group queries (#1487837)
	- Fix vcard folding with uncode characters (#1487868)
	- Keep all submitted data if contact form validation fails (#1487865)
	- Handle uncode strings in rcube_addressbook::normalize_string() (#1487866)
	- Fix handling of debug_level=4 in ajax requests (#1487831)
	- Enable TinyMCE's contextmenu (#1487014)
	- 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 (#1487806)
	- Better display of vcard import results (#1485457)
	- 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 (#1486692)
	- Replying to a sent message puts the old recipient as the new recipient (#1487074)
	- 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 (#1488030)

	RELEASE 0.5.3
	-------------
	- Fix identities "reply-to" and "bcc" fields have a bogus value when left empty (#1487943)
	- Fix issue which cases IMAP disconnection when encrypt() method was used (#1487900)
	- 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 (#1487902)
	- Fix relative URLs handling according to a <base> in HTML (#1487889)
	- Fix handling of top-level domains with more than 5 chars or unicode chars (#1487883)
	- Fix usage of non-standard HTTP error codes (#1487797)
	- Fix PHP warning on mistaken in_array() usage (#1487901)

	RELEASE 0.5.2
	-------------
	- TinyMCE 3.4.2 now compatible with IE9
	- PEAR::Net_SMTP 1.5.2, fixed timeout issue (#1487843)
	- 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 (#1487863)
	- Improve space-stuffing handling in format=flowed messages (#1487861)
	- Fix bug where some dates would produce SQL error in MySQL (#1487856)
	- Added workaround for some IMAP server with broken STATUS response (#1487859)
	- Fix bug where default_charset was not used for text messages (#1487836)
	- Stateless request tokens. No keep-alive necessary on login page (#1487829)
	- 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 (#1486281)
	- Fix some emails are not shown using Cyrus IMAP (#1487820)
	- Fix handling of mime-encoded words with non-integral number of octets in a word (#1487801)
	- Fix parsing links with non-printable characters inside (#1487805)
	- Fixed de_CH Localization bugs (#1487773)
	- Add variable for 'Today' label in date_today option (#1486120)
	- Fix dont_override setting does not override existing user preferences (#1487664)
	- 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 (#1487775)

	RELEASE 0.5.1
	-------------
	- Fix handling of attachments with invalid content type (#1487767)
	- Add workaround for DBMail's bug http://www.dbmail.org/mantis/view.php?id=881 (#1487766)
	- 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 (#1487740)
	- Fix ICANN example addresses doesn't validate (#1487742)
	- Security: protect login form submission from CSRF
	- Security: prevent from relaying malicious requests through modcss.inc
	- Fix handling of non-image attachments in multipart/related messages (#1487750)
	- Fix IDNA support when IDN/INTL modules are in use (#1487742)
	- Fix handling of invalid HTML comments in messages (#1487759)
	- Fix parsing FETCH response for very long headers (#1487753)
	- Fix add/remove columns in message list when message_sort_order isn't set (#1487751)
	- Check mime headers before attempt to parse them (#1487745)
	- Quote header values in show_additional_headers plugin (#1487744)
	- Fix settings UI on IE 6 (#1487724)
	- Remove double borders in folder listing (#1487713)
	- Separate full message headers UI element from headers table (#1487715)
	- Add part MIME ID to message_part_* hooks (#1487718)
	- Improve parsing of MS Outlook vCards (#1487716)
	- 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. (#1487673)
	- Show full mail subject as title when hovering a cut subject link (#1487128)
	- Fix randomly disappearing folders list in IE (#1487704)
	- Fix list column add/removal in IE (#1487703)
	- Fix login redirect issues (#1487686)
	- Require PHP 5.2.1 or greater
	- Fix %h/%z variables in username_domain option (#1487701)
	- Workaround for setting charset in case of malformed bodystructure response (#1487700)
	- Fix impossible to subscribe to protected folders (#1487656)
	- Fix setting timezone in Preferences (#1487705)

	RELEASE 0.5
	-----------
	- Fix double-login/session issue (#1487104)
	- Wrap HTML parts with <html><body> and add Doctype declaration (#1487098)
	- Make rcube_autoload silently skip unknown classes (#1487109)
	- Fix charset detection in vcards with encoded values (#1485542)
	- Better CSS cursors for splitters (#1486874)
	- Show the same message only once (#1487641)
	- Fix namespaces handling (#1487649)
	- Add handling of multifolder METADATA/ANNOTATION responses
	- Fix handling of INBOX when personal namespace prefix is non-empty (#1487657)
	- Fix handling square brackets in links (#1487672)
	- Add description of 'use_https' option in main.inc.php.dist file

	RELEASE 0.5-RC
	--------------
	- Plugin API: Add 'pass' argument in 'authenticate' hook (#1487134)
	- Fix attachments of type message/rfc822 are not listed on attachments list
	- Add 'login_lc' config option for case-insensitive authentication (#1487113)
	- Fix window is blur'ed in IE when selecting a message (#1487316)
	- Fix cursor position on compose form in Webkit browsers (#1486674)
	- Fix setting charset of attachment filenames (#1487122)
	- Allow setting autocomplete attribute for all inputs separately (#1487313)
	- New Folder Manager UI
	- Fix invalid Request when creating a folder (#1487443)
	- Add folder size and quota indicator in folder manager (#1485780)
	- Add possibility to move a subfolder into root folder (#1486791)
	- 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 (#1485206)
	- Improve performance of folder rename and delete actions
	- Better support for READ-ONLY and NOPERM responses handling (#1487083)
	- Add confirmation message on purge/expunge command response
	- Fix handling of untagged responses for AUTHENTICATE command (#1487450)
	- Add username and IP address to log message on unsuccessful login (#1487626)
	- Improved Mail-Followup-To and Mail-Reply-To headers handling
	- Fix charset conversion for text attachments without charset specification (#1487634)

	RELEASE 0.5-BETA
	----------------
	- Make session data storage more robust against garbage session data (#1487136)
	- Config option for autocomplete on login screen
	- Allow plugin templates to include local files (#1487133)
	- List groups in address detail view and allow to subscribe/unsubscribe from there (#1486753)
	- Messages caching: performance improvements, fixed syncing, fixes related with #1486748
	- Add link to identities in compose window (#1486729)
	- Add Internationalized Domain Name (IDNA) support (#1483894)
	- Add option to automatically send read notifications for known senders (#1485883)
	- Add option to "Return receipt" will be always checked (#1486352)
	- Fix HTML to plain text conversion doesn't handle citation blocks (#1486921)
	- Use custom sorting when SORT is disabled by IMAP admin (#1486959)
	- Allow setting some washtml options from plugin (#1486578)
	- Add option do bind for an individual LDAP address book (#1486997)
	- Change reply prefix to display email address only if sender name doesn't exist (#1486550)
	- Plugin API: improved 'abort' flag handling, added 'result' item in some hooks (#1486914)
	- Fix mailto optional params in plain text messages aren't handled (#1487026)
	- Add Reply-to-List feature (#1484252)
	- Add Mail-Followup-To/Mail-Reply-To support (#1485547)
	- Fix confirmation message isn't displayed after sending mail on Chrome (#1486177)
	- Fix keyboard doesn't work with autocomplete list with Chrome (#1487029)
	- Improve tabs to fixed width and add tabs in identities info (#1486974)
	- 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 (#1485840)
	- Use empty envelope sender address for message disposition notifications (RFC 2298.3)
	- Support SMTP Delivery Status Notifications - RFC 3461 (#1486142)
	- Use css sprite image for messages list
	- Add (different) attachment icon for messages of type multipart/report (#1486165)
	- Prevent from inserting empty link when composing HTML message (#1486944)
	- Add caching support in id2uid and uid2id functions (#1487019)
	- Add SASL proxy authentication for SMTP (#1486693)
	- Improve displaying of UI messages (#1486977)
	- Fix double e-mail filed in identity form (#1487054)
	- Display IMAP errors for LIST/THREAD/SEARCH commands (#1486905)
	- Add LITERAL+ (IMAP4 non-synchronizing literals) support (RFC 2088)
	- Add separate column for message status icon (#1486665)
	- 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 (#1487068)
	- Fix handling of attachments when Content-Disposition is not inline nor attachment (#1487051)
	- Improve performance of unseen messages counting (#1487058)
	- 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 (#1486690)
	- Add support for AUTH=DIGEST-MD5 in IMAP (RFC 2831)
	- Fix parent folder with unread subfolder not bold when message is open (#1487078)
	- 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 (#1486225)
	- Fix handling of URLs with tilde (~) or semicolon (;) character (#1487087, #1487088)
	- 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 (#1487095)
	- Add option to place replies in the folder of the message being replied to (#1485945)
	- Add missing confirmation/error messages on contact/group/message actions (#1486845)
	- Add 'loading' message on message move/copy/delete/mark actions
	- Improve responsiveness of messages displaying (#1486986)
	- Add option for minimum length of autocomplete's string (#1486428)
	- Fix operations on messages in unsubscribed folder (#1487107)
	- Add support for shared folders (#1403507)
	- Fix handling of folders with name "0" (#1487119)
	- 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 (#1487123)
	- Fix error in MSSQL DDL scripts (#1487112)
	- Lock submit button in onsubmit event on login page (#1487036)
	- Don't set attachment's charset in Content-type header (#1487122)
	- Fix handling of message bodies (quoted-printable encoded) with NULL characters (#1486189)
	- 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 (#1487021)
	- 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 (#1487023)
	- Fix handling of Thunderbird's vCards (#1487024)

	RELEASE 0.4.1
	-------------
	- Fix space-stuffing in format=flowed messages (#1487018)
	- Fix msgexport.sh now using the new imap wrapper
	- Avoid displaying password on shell (#1486947)
	- Only lower-case user name if first login attempt failed (#1486393)
	- Make alias setting in squirrelmail_usercopy plugin configurable (patch by pommi, #1487007)
	- Prevent from saving a non-existing skin path in user prefs (#1486936)
	- Improve handling of single-part messages with bogus BODYSTRUCTURE (#1486898)
	- Fix path to SQL files when using pgsql/mysqli/sqlsrv drivers (#1486902)
	- Fix upgrade script for SQLite (#1486903)
	- Fixes in SQL init script + added update script for MSSQL database
	- Remove redundant date in syslog messages (#1486945)
	- Fix contacts list page controls when a group is selected (#1486946)
	- Fix SMTP test in Installer (#1486952)
	- Fix "Select all" causes message to be opened in folder with exactly one message (#1486913)
	- Fix Tab key doesn't work in HTML editor in Google Chrome (#1486925)
	- Fix TinyMCE uses zh_CN when zh_TW locale is set (#1486929)
	- Fix TinyMCE buttons are hidden in Opera (#1486922)
	- Fix JS error on IE when trying to send HTML message with enabled spellchecker (#1486940)
	- Display inline images with known extensions and non-image content-type (#1486934)
	- Fix "Threaded" checkbox after subfolder creation (#1486928)
	- Fix timezone string in sent mail (#1486961)
	- Show disabled checkboxes for protected folders instead of dots (#1485498)
	- Added fieldsets in Identity form, added 'identity_form' hook
	- Re-added 'Close' button in upload form (#1486930, #1486823)
	- Fix handling of charsets with LATIN-* label
	- Fix messages background image handling in some cases (#1486990)
	- Fix format=flowed handling (#1486989)
	- Fix when IMAP connection fails in 'get' action session shouldn't be destroyed (#1486995)
	- Fix list_cols is not updated after column dragging (#1486999)
	- Support %z variable in host configuration options (#1487003)

	RELEASE 0.4
	-----------
	- Fix disapearing upload form disapears when user selects a file on Safari (#1486823)
	- Don't replace error messages with loading info (#1486300)
	- Fix JS errors on compose mode switch (#1486870)
	- Fix message structure parsing when it lacks optional fields (#1486881)
	- Include all recipients in sendmail log
	- Support HTTP_X_FORWARDED_PROTO header for HTTPS detecting (#1486866)
	- Fix default IMAP port configuration (#1486864)
	- Create Sent folder when starting to compose a new message (#1486802)
	- Fix handling of messages with Content-Type: application/* and no filename (#1484050)
	- Improved compose screen: resizable body and attachments list, vertical splitter, options menu
	- Fix RC forgets search results (#1483883)
	- TinyMCE 3.3.7
	- Improve parsing of styled empty tags in HTML messages (#1486812)
	- Add %dc variable support in base_dn/bind_dn config (#1486779)
	- Add button to hide/unhide the preview pane (#1484215)
	- Fix no-cache headers on https to prevent content caching by proxies (#1486798)
	- Fix attachment filenames broken with TNEF decoder using long filenames (#1486795)
	- Use user's timezone in Date header, not server's timezone (#1486119)
	- Add option to set separate footer for HTML messages (#1486660)
	- Add real SMTP error description to displayed error messages (#1485927)
	- Fix some IMAP errors handling when opening the message (#1485443)
	- Fix related parts aren't displayed when got mimetype other than image/* (#1486432)
	- Multiple identity and database support for squirrelmail_usercopy plugin (#1486517)
	- Support dynamic hostname (%d/%n) variables in configuration options (#1485438)
	- Add 'messages_list' hook (#1486266)
	- Add request* event triggers in http_post/http_request (#1486054)
	- Fix use RFC-compliant line-delimiter when saving messages on IMAP (#1486712)
	- Add 'imap_timeout' option (#1486760)
	- Fix forwarding of messages with winmail attachments
	- Fix handling of uuencoded attachments in message body (#1485839)
	- Added list_mailboxes hook in rcube_imap::list_unsubscribed() (#1486668)
	- Fix wrong message on file upload error (#1486725)
	- Add support for data URI scheme [RFC2397] (#1486740)
	- 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 (#1484370), fixes word wrapping issues (#1486543)
	- Fix duplicated attachments when forwarding a message (#1486487)
	- Fix message/rfc822 attachments containing only attachments are not parsed properly (#1486743)
	- Fix %00 character in winmail.dat attachments names (#1486738)
	- Fix handling errors of folder deletion (#1486705)
	- Parse untagged CAPABILITY response for LOGIN command (#1486742)
	- 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 (#1486682)
	- Fix check-recent action issues and performance (#1486526)
	- Fix messages order after checking for recent (#1484664)
	- Fix autocomplete shows entries without email (#1486452)
	- Fix listupdate event doesn't trigger on search response (#1486708)
	- Fix select_all_mode value after selecting a message (#1486720)
	- Set focus to editor on reply in HTML mode (#1486632)
	- Fix composing in HTML jumps cursor to body instead of recipients (#1486674)
	- Allow columns order change per user - drag&drop (#1485795)
	- Add References header in read receipt (#1486681)
	- Fix database constraint violation when opening a message (#1486696)
	- Add 'loading' message while login is in progress (#1486667)
	- Fix quota_zero_as_unlimited (#1486662)
	- Fix folder subscription checking (#1486684)
	- Fix INBOX appears (sometimes) twice in mailbox list (#1486672)
	- Fix listing of attachments of some types e.g. "x-epoc/x-sisx-app" (#1486653)
	- Fix DB Schema checking when some db_table_* options are not set (#1486654)

	RELEASE 0.4-beta
	----------------
	- Add sizelimit and timelimit variables in LDAP config (#1486544)
	- Hide IMAP host dropdown when single host is defined (#1486326)
	- Add images pre-loading on login page (#1451160)
	- Add HTTP_X_REAL_IP and HTTP_X_FORWARDED_FOR to successful logins log (#1486441)
	- Fix setting spellcheck languages with extended codes (#1486605)
	- Fix messages list scrolling in FF3.6 (#1486472)
	- Fix quicksearch input focus (#1486637)
	- Always set changed date when flagging a DB record as deleted + provide a cleanup script
	- Fix address book/group selection (#1486619)
	- Assign newly created contacts to the active group (#1486626)
	- Added option not to mark messages as read when viewed in preview pane (#1485012)
	- Allow plugins modify the Sent folder when composing (#1486548)
	- Added optional (max_recipients) support to restrict total number of recipients per message (#1484542)
	- Re-organize editor buttons, add blockquote and search buttons
	- Make possible to write inside or after a quoted html message (#1485476)
	- Fix bugs on unexpected IMAP connection close (#1486190, #1486270)
	- 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 (#1486430)
	- Added possibility to select all messages in a folder (#1484756)
	- Added 'imap_force_caps' option for after-login CAPABILITY checking (#1485750)
	- Password: Support dovecotpw encryption
	- TinyMCE 3.3.1
	- Implemented messages copying using drag&drop + SHIFT (#1484086)
	- Improved performance of folders operations (#1486525)
	- Fix blocked.gif attachment is not attached to the message (#1486516)
	- Managesieve: import from Horde-INGO
	- Managesieve: support for more than one match (#1486078)
	- Managesieve: support for selectively disabling rules within a single sieve script (#1485882)
	- 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 (#1486148)
	- Options virtuser_* replaced with virtuser_* plugins
	- Plugin API: Implemented 'email2user' and 'user2email' hooks
	- Fix forwarding message omits CC header (#1486305)
	- Add 'default_charset' option to user preferences (#1485451)
	- 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 (#1486299)
	- Fix deleting all messages from last list page (#1486293)
	- Flag original messages when sending a draft (#1486203)
	- Changed signature separator when top-posting (#1486330)
	- Let the admin define defaults for search modifiers (#1485897)
	- Fix long e-mail addresses validation (#1486453)
	- Remember search modifiers in user prefs (#1486146)
	- Added force_7bit option to force MIME encoding of plain/text messages (#1486510)
	- Use case sensitive check when checking for default folders (#1486346)
	- Fix checking for new mail: now checks unseen count of inbox (#1485794)
	- Improve performance by avoiding unnecessary updates to the session table (#1486325)
	- Fix invalid <font> tags which cause HTML message rendering problems (#1486521)
	- Fix CVE-2010-0464: Disable DNS prefetching (#1486449)
	- Fix Received headers to behave better with SpamAssassin (#1486513)
	- Password: Make passwords encoding consistent with core, add 'password_charset' global option (#1486473)
	- Fix adding contacts SQL error on mysql (#1486459)
	- Squirrelmail_usercopy: support reply-to field (#1486506)
	- Fix IE spellcheck suggestion popup issue (#1486471)
	- Fix email address auto-completion shows regexp pattern (#1486258)
	- Fix merging of configuration parameters: user prefs always survive (#1486368)
	- Fix quota indicator value after folder purge/expunge (#1486488)
	- Fix external mailto links support for use as protocol handler (#1486037)
	- Fix attachment excessive memory use, support messages of any size (#1484660)
	- Fix setting task name according to auth state
	- Password: fix vpopmaild driver (#1486478)
	- Add workaround for MySQL bug [http://bugs.mysql.com/bug.php?id=46293] (#1486474)
	- Fix quoted text wrapping when replying to an HTML email in plain text (#1484141)
	- Fix handling of extended mailto links (with params) (#1486354)
	- Fix sorting by date of messages without date header on servers without SORT (#1486286)
	- Fix inconsistency when not using default table names (#1486467)
	- Fix folder rename/delete buttons do not appear on creation of first folder (#1486468)
	- Fix character set conversion fails on systems where iconv doesn't accept //IGNORE (#1486375)
	- 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 (#1486395)
	- Use jQuery-1.4
	- Removed problematic browser-caching of messages
	- Fix incompatybility with suhosin.executor.disable_emodifier (#1486321)
	- Use PLAIN auth when CRAM fails and imap_auth_type='check' (#1486371)
	- Fix removal of <title> tag from HTML messages (#1486432)
	- Fix 'force_https' to specified port when URL contains a port number (#1486411)
	- Fix to-text converting of HTML entities inside b/strong/th/hX tags (#1486422)
	- Bug in spellchecker suggestions when server charset != UTF8 (#1486406)
	- Managesieve: Fix requires generation for multiple actions (#1486397)
	- Fix LDAP problem with special characters in RDN (#1486320)
	- Improved handling of message parts of type message/rfc822
	- Plugin API: added 'quota' hook
	- Fix parsing conditional comments in HTML messages (#1486350)
	- Use built-in json_encode() for proper JSON format in AJAX replies
	- Allow setting only selected params in 'message_compose' hook (#1486312)
	- Plugin API: added 'message_compose_body' hook (#1486285)
	- Fix counters of all folders are checked in 'getunread' action with check_all_folders disabled (#1486128)
	- Fix displaying alternative parts in messages of type message/rfc822 (#1486246)
	- Fix possible messages exposure when using Roundcube behind a proxy (#1486281)
	- Fix unicode para and line separators in javascript response (#1486310)
	- Additional_message_headers: allow unsetting headers, support plugin's config file (#1486268)
	- Fix displaying of hidden directories in skins list (#1486301)
	- Fix open_basedir restriction error when reading skins list (#1486304)
	- Fix pasting from Office apps into html editor (#1486271)
	- Fix empty <a> tags parsing (#1486272)
	- Don't cut off attachment names when using non-RFC2231 encoding (#1485515)
	- Allow inserting signatures above replied message body (#1484272)
	- Managesieve 2.0: multi-script support
	- Fix imap_auth_type regression (#1486263)

	RELEASE 0.3.1
	------------------
	- Specify toolbar container in compose template (#1486247)
	- Fix $_SERVER['HTTPS'] check for SSL forcing on IIS (#1486243)
	- Avoid unnecessary page loads for selected tab (#1486032)
	- Fix quota indicator issues by content generation on client-size (#1486197, #1486220)
	- Don't display disabled sections in Settings (#1486099)
	- Added server-side e-mail address validation with 'email_dns_check' option (#1485857)
	- Fix login page loading into an iframe when session expires (#1485952)
	- Allow setting port number in 'force_https' option (#1486091)
	- Option 'force_https' replaced by 'force_https' plugin
	- Fix IE issue with non-UTF-8 characters in AJAX response (#1486159)
	- Partially fixed "empty body" issue by showing raw body of malformed message (#1486166)
	- Fix importing/sending to email address with whitespace (#1486214)
	- Added XIMSS (CommuniGate) driver for Password plugin
	- Fix newly attached files are not saved in drafts w/o editing any text (#1486202)
	- Added attachment upload indicator with parallel upload (#1486058)
	- Use default_charset for bodies of messages without charset definition (#1486187)
	- Password: added cPanel driver
	- Fix return to first page from e-mail screen (#1486105)
	- Fix handling HTML comments in HTML messages (#1486189)
	- Fix folder/messagelist controls alignment - icons used (#1486072)
	- Fix LDAP addressbook shows 'Contact not found' error sometimes (#1486178)
	- Fix cache status checking + improve cache operations performance (#1486104)
	- Prevent from setting INBOX as any of special folders (#1486114)
	- Fix regular expression for e-mail address (#1486152)
	- Fix Received header format
	- Implemented sorting by message index - added 'index_sort' option (#1485936)
	- Fix dl() use in installer (#1486150)
	- Added 'ldap_debug' option
	- Fix "Empty startup greeting" bug (#1486085)
	- Fix setting user name in 'new_user_identity' plugin (#1486137)
	- Fix incorrect count of new messages in folder list when using multiple IMAP clients (#1485995)
	- Fix all folders checking for new messages with disabled caching (#1486128)
	- Support skins in 'archive' and 'markasjunk' plugins
	- Added 'html_editor' hook (#1486068)
	- Fix DB constraint violation when populating messages cache (#1486052)
	- Password: added password strength options (#1486062)
	- Fix LDAP partial result warning (#1485536)
	- Fix delete in message view deletes permanently with flag_for_deletion=true (#1486101)
	- Use faster/secure mt_rand() (#1486094)
	- Fix roundcube hangs on empty inbox with bincimapd (#1486093)
	- Fix wrong headers for IE on servers without $_SERVER['HTTPS'] (#1485926)
	- Force IE style headers for attachments in non-HTTPS session, 'use_https' option (#1485655)
	- Check 'post_max_size' for upload max filesize (#1486089)
	- Password Plugin: Fix %d inserts username instead of domain (#1486088)
	- Fix rcube_mdb2::affected_rows() (#1486082)

	RELEASE 0.3-stable
	------------------
	- Fix gn and givenName should be synonymous in LDAP addressbook (#1485892)
	- Add mail_domain to LDAP email entries without @ sign (#1485201)
	- Fix saving empty values in LDAP contact data (#1485781)
	- Fix LDAP contact update when RDN field is changed (#1485788)
	- Fix LDAP attributes case senitivity problems (#1485830)
	- Fix LDAP addressbook browsing when only one directory is used (#1486022)
	- Fix endless loop on error response for APPEND command (#1486060)
	- Don't require date.timezone setting in installer (#1485989)
	- Fix date sorting problem with Courier IMAP server (#1486065)
	- Unselect pressed buttons on mouse up (#1485987)
	- Don't set php_value error_log in .htaccess but mention in INSTALL (#1485924)
	- Fix too small status/flag/attachment columns in Safari 4 (#1486063)
	- Fix selection disabling while dragging splitter in webkit browsers (#1486056)
	- Added 'new_messages' plugin hook (#1486005)
	- Added 'logout_after' plugin hook (#1486042)
	- Added 'message_compose' hook
	- Added 'imap_connect' hook (#1485956)
	- Fix vcard_attachments plugin (#1486035)
	- Updated PEAR::Auth_SASL to 1.0.3 version
	- Use sequence names only with PostgreSQL (#1486018)
	- Re-designed User Preferences interface
	- Fix MS SQL DDL (#1486020)
	- Fix rcube_mdb2.php: call to setCharset not implemented in mssql driver (#1486019)
	- Added 'display_next' option
	- Fix rcube_mdb2::unixtimestamp for MS SQL (#1486015)
	- Fix HTML washing to respect character encoding
	- Fix endless loop in iil_C_Login() with Courier IMAP (#1486010)
	- Fix #messagemenu display on IE (#1486006)
	- Speedup UI by using sprites for (toolbar) buttons
	- Fix charset names with X- prefix handling
	- Fix displaying of HTML messages with unknown/malformed tags (#1486003)

	RELEASE 0.3-RC1
	---------------
	- Fix import of vCard entries with params (#1485453)
	- Fix HTML messages output with empty block elements (#1485974)
	- Use request tokens to protect POST requests from CSRF
	- Added hook when killing a session
	- Added hook to write_log function (#1485971)
	- Performance improvements by use UID commands (#1485690)
	- Fix HTML editor tabIndex setting (#1485972)
	- Added 'imap_debug' and 'smtp_debug' options
	- Support strftime's format modifiers in date_* options (#1484806)
	- Support %h variable in 'smtp_server' option (#1485766)
	- Show SMTP errors in browser (#1485927)
	- Allow WBR tag in HTML message (#1485960)
	- Use spl_autoload_register() instead of __autoload (#1485947)
	- Add hook for identities listing (#1485958)
	- Trigger hook 'smtp_connect' when opening an SMTP connection (#1485954)
	- Added config option to enforce HTTPS connections
	- Fix non-unicode characters caching in unicode database (#1484608)
	- Performance improvements of messages caching
	- Fix empty Date header issue (#1485923)
	- Open collapsed folders during drag & drop (#1485914)
	- Fixed link text replacements (#1485789)
	- Also trigger 'insertrow' events on page load (#1485826)
	- No link on subject in IE browsers (#1484913)
	- Fixed filename encoding according to RFC2231 (#1485875)
	- Added message Edit feature (#1483891, #1484440)
	- Fix message Etag generation for counter issues (#1485623)
	- Fix messages searching on MailEnable IMAP (#1485762)
	- Fixed many 'skip_deleted' issues (#1485634)
	- 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 (#1485889)
	- Added possibility to invert messages selection
	- After move/delete from 'show' action display next message instead of messages list (#1485887)
	- Fixed problem with double quote at the end of folder name (#1485884)
	- Speedup UI by using CSS sprites and etags/expires/deflate in Apache config (#1484858,#1485800)
	- Support UID EXPUNGE: remove only moved/deleted messages
	- Add drag cancelling with ESC key (#1484344)
	- Support initial identity name from virtuser_query (#1484003)
	- Added message menu, removed Print and Source buttons
	- Added possibility to save message as .eml file (#1485861)
	- Added 1 minute interval in autosave options (#1485854)
	- Support UTF-7 encoding in messages (#1485832)
	- Better support for malformed character names (#1485758)

	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 (#1485792)
	- Support UUencode content encoding (#1485839)
	- Minimize chance of race condition in session handling (#1485659, #1484678)
	- Fix session handling on non-session SQL query error (#1485734)
	- Fix html editor mode setting when reopening draft message (#1485834)
	- Added quick search box menu (#1484304)
	- Fix wrong column sort order icons (#1485823)
	- Updated TinyMCE to 3.2.3 version
	- Fix attachment names encoding when charset isn't specified in attachment part (#1484969)
	- Fix message normal priority problem (#1485820)
	- Fix autocomplete spinning wheel does not disappear (#1485804)
	- Added log_date_format option (#1485709)
	- Fix text wrapping in HTML editor after switching from plain text to HTML (#1485521)
	- Fix auto-complete function hangs with plus sign (#1485815)
	- Fix AJAX requests errors handler (#1485000)
	- Speed up message list displaying on IE
	- Fix read/write database recognition (#1485811)

	RELEASE 0.2.2
	-------------
	- Fix quicksearchbox look in Chrome and Konqueror (#1484841)
	- Fix UTF-8 byte-order mark removing (#1485514)
	- Fix folders subscribtions on Konqueror (#1484841)
	- Fix debug console on Konqueror and Safari
	- Fix messagelist focus issue when modifying status of selected messages (#1485807)
	- Support STARTTLS in IMAP connection (#1485284)
	- Fix DEL key problem in search boxes (#1485528)
	- Support several e-mail addresses per user from virtuser_file (#1485678)
	- Fix drag&drop with scrolling on IE (#1485786)
	- Fix adding signature separator in html mode (#1485350)
	- Fix opening attachment marks message as read (#1485803)
	- Fix 'temp_dir' does not support relative path under Windows (#1484529)
	- Fix "Initialize Database" button missing from installer (#1485802)
	- Fix compose window doesn't fit 1024x768 window (#1485396)
	- Fix service not available error when pressing back from compose dialog (#1485552)
	- Fix using mail() on Windows (#1485779)
	- Fix word wrapping in message-part's <PRE>s for printing (#1485787)
	- Fix incorrect word wrapping in outgoing plaintext multibyte messages (#1485714)
	- Fix double footer in HTML message with embedded images
	- Fix TNEF implementation bug (#1485773)
	- Fix incorrect row id parsing for LDAP contacts list (#1485784)
	- Fix 'mode' parameter in sqlite DSN (#1485772)

	RELEASE 0.2.1
	------------------
	- Use US-ASCII as failover when Unicode searching fails (#1485762)
	- Fix errors handling in IMAP command continuations (#1485762)
	- Fix FETCH result parsing for servers returning flags at the end of result (#1485763)
	- Fix datetime columns defaults in mysql's DDL (#1485641)
	- Fix attaching more than nine inline images (#1485759)
	- Support 'UNICODE-1-1-UTF-7' alias for UTF-7 encoding (#1485758)
	- Fix mime-type detection using a hard-coded map (#1485311)
	- Don't return empty string if charset conversion failed (#1485757)
	- Disable concurrent autocomplete query results display (#1485743)
	- Fix new lines stripped from message footer (#1485751)
	- Fix IE problem with mouse click autocomplete (#1485739)
	- Fix html body washing on reply/forward + fix attachments handling (#1485676)
	- Fix multiple recipients input parsing (#1485733)
	- Fix replying to message with html attachment (#1485676)
	- Use default_charset for messages without specified charset (#1485661, #1484961)
	- Support non-standard "GMT-XXXX" literal in date header (#1485729)
	- Added TNEF support to decode MS Outlook attachments (winmail.dat)
	- Fix "value continuation" MIME headers by adding required semicolon (#1485727)
	- Fix pressing select all/unread multiple times (#1485723)
	- Fix selecting all unread does not honor new messages (#1485724)
	- Fix some base64 encoded attachments handling (#1485725)
	- Support NGINX as IMAP backend: better BAD response handling (#1485720)
	- Performance fix: don't fetch attachment parts headers twice to parse filename
	- Fix checking for recent messages on various IMAP servers (#1485702)
	- Performance fix: Don't fetch quota and recent messages in "message view" mode
	- Fix displaying of alternative-inside-alternative messages (#1485713)
	- Fix MDNSent flag checking, use arbitrary keywords (asterisk) flag (#1485706)
	- Fix creation of folders with '&' sign in name
	- Fix parsing of email addresses without angle brackets (#1485693)
	- Save spellcheck corrections when switching from plain to html editor (and spellchecking is on)
	- Fix large search results on server without SORT capability (#1485668)
	- Get rid of preg_replace() with eval modifier and create_function usage (#1485686)
	- Bring back <base> and <link> tags in HTML messages
	- Fix XSS vulnerability through background attributes as reported by Julien Cayssol
	- Fix problems with backslash as IMAP hierarchy delimiter (#1484467)
	- Secure vcard export by getting rid of preg's 'e' modifier use (#1485689)
	- Fix authentication when submitting form with existing session (#1485679)
	- Allow absolute URLs to images in HTML messages/sigs (#1485666)
	- Fix message body which contains both inline attachments and emotions
	- Fix SQL query execution errors handling in rcube_mdb2 class (#1485509)
	- Fix address names with '@' sign handling (#1485654)
	- Improve messages display performance
	- Fix messages searching with 'to:' modifier

	RELEASE 0.2-STABLE
	------------------
	- Fix mark popup in IE 7 (#1485369)
	- Fix line-break issue when copy & paste in Firefox (#1485425)
	- Fix autocomplete "unknown server error" (#1485637)
	- Fix STARTTLS before AUTH in SMTP connection (#1484883)
	- Support multiple quota values in QUOTAROOT resonse (#1485626)
	- Only abbreviate file name for IE < 7 browsers (#1485063)
	- Performance: allow setting imap rootdir and delimiter before connect (#1485172)
	- Fix sorting of folders with more than 2 levels (#1485569)
	- Fix search results page jumps in LDAP addressbook (#1485253)
	- Fix empty line before the signature in IE (#1485351)
	- Fix horizontal scrollbar in preview pane on IE (#1484633)
	- Add Robots meta tag in login page and installer (#1484846)
	- Added 'show_images' option, removed 'addrbook_show_images' (#1485597)
	- Option to check for new mails in all folders (#1484374)
	- Don't set client busy when checking for new messages (#1485276)
	- Allow UTF-8 folder names in config (#1485579)
	- Add junk_mbox option configuration in installer (#1485579)
	- Do serverside addressbook queries for autocompletion (#1485531)
	- Allow setting attachment col position in 'list_cols' option
	- Allow override 'list_cols' via skin (#1485577)
	- Fix 'cache' table cleanup on session destroy (#1485516)
	- Increase speed of session destroy and garbage clean up
	- Fix session timeout when DB server got clock skew (#1485490)
	- Fix handling of some malformed messages (#1484438)
	- Speed up raw message body handling
	- Better HTML entities conversion in html2text (#1485519)
	- Fix big memory consumption and speed up searching on servers without SORT capability
	- Fix setting locale to tr_TR, ku and az_AZ (#1485470)
	- Use SORT for searching on servers with SORT capability
	- Added message status filter
	- Fix empty file sending (#1485389)
	- Improved searching with many criterias (calling one SEARCH command)
	- Fix HTML editor initialization on IE (#1485304)
	- Add warning when switching editor mode from html to plain (#1485488)
	- Make identities list scrollable (#1485538)
	- Fix problem with numeric folder names (#1485527)
	- Added BYE response simple support to prevent from endless loops in imap.inc (#1483956)
	- Fix unread message unintentionally marked as read if read_when_deleted=true (#1485409)
	- Remove port number from SERVER_NAME in smtp_helo_host (#1485518)
	- Don't send disposition notification receipts for messages marked as 'read' (#1485523)
	- Added 'keep_alive' and 'min_keep_alive' options (#1485360)
	- Added option 'identities_level', removed 'multiple_identities'
	- Allow deleting identities when multiple_identities=false (#1485435)
	- Added option focus_on_new_message (#1485374)
	- Fix html2text class autoloading on Windows (#1485505)
	- Fix html signature formatting when identity save error occured (#1485426)
	- Add feedback and set busy when moving folder (#1485497)
	- Fix 'Empty' link visibility for some languages e.g. Slovak (#1485489)
	- Fix messages count bar overlapping (#1485270)
	- Fix adding signature in drafts compose mode (#1485484)
	- Fix iil_C_Sort() to support very long and/or divided responses (#1485283)
	- Fix matching case sensitivity when setting identity on reply (#1485480)
	- Prefer default identity on reply
	- Fix imap searching on ISMail server (#1485466)
	- Add css class for flagged messages (#1485464)
	- Write username instead of id in sendmail log (#1485477)
	- Fix htmlspecialchars() use for PHP version < 5.2.3 (#1485475)
	- Fix js keywords escaping in json_serialize() for IE/Opera (#1485472)
	- Added bin/killcache.php script (#1485434)
	- Add support for SJIS, GB2312, BIG5 in rc_detect_encoding()
	- Fix vCard file encoding detection for non-UTF-8 strings (#1485410)
	- Add 'skip_deleted' option in User Preferences (#1485445)
	- Minimize "inline" javascript scripts use (#1485433)
	- Fix css class setting for folders with names matching defined classes names (#1485355)
	- Fix race conditions when changing mailbox
	- Fix spellchecking when switching to html editor (#1485362)
	- Fix compose window width/height (#1485396)
	- Allow calling msgimport.sh/msgexport.sh from any directory (#1485431)
	- Localized filesize units (#1485340)
	- Better handling of "no identity" and "no email in identity" situations (#1485117)
	- Added 'mime_param_folding' option with possibility to choose long/non-ascii attachment names encoding eg. to be readable in MS Outlook/OE (#1485320)
	- Added "advanced options" feature in User Preferences
	- Fix unread counter when displaying cached massage in preview panel (#1485290)
	- Fix htmleditor spellchecking on MS Windows (#1485397)
	- Fix problem with non-ascii attachment names in Mail_mime (#1485267, #1485096)
	- Fix language autodetection (#1485401)
	- Fix button label in folders management (#1485405)
	- Fix collapsed folder not indicating unread msgs count of all subfolders (#1485403)
	- Fix handling of apostrophes in filenames decoded according to rfc2231

	RELEASE 0.2-BETA
	----------------
	- Made config files location configurable (#1485215)
	- Reduced memory footprint when forwarding attachments (#1485345)
	- Allow and use spellcheck attribute for input/textarea fields (#1485060)
	- Added icons for forwarded/forwarded+replied messages (#1485257)
	- Added Reply-To to forwarded emails (#1485315)
	- Display progress message for folders create/delete/rename (#1485357)
	- Smart Tags and NOBR tag support in html messages (#1485363, #1485327)
	- Redesign of the identities settings (#1484042)
	- Add config option to disable creation/deletion of identities (#1484498)
	- Added 'sendmail_delay' option to restrict messages sending interval (#1484491)
	- Added vertical splitter for folders list resizing
	- Added possibility to view all headers in message view
	- Fixed splitter drag/resize on Opera (#1485170)
	- Fixed quota img height/width setting from template (#1484857)
	- Refactor drag & drop functionality. Don't rely on browser events anymore (#1484453)
	- Insert "virtual" folders in subscription list (#1484779)
	- Added link to open message in new window
	- Enable export of address book contacts as vCard
	- Add feature to import contacts from vcard files (#1326103)
	- Respect Content-Location headers in multipart/related messages according to RFC2110 (#1484946)
	- Allowed max. attachment size now indicated in compose screen (#1485030)
	- Also capture backspace key in list mode (#1484566)
	- Allow application/pgp parts to be displayed (#1484753)
	- Correctly handle options in mailto-links (#1485228)
	- Immediately save sort_col/sort_order in user prefs (#1485265)
	- Truncate very long (above 50 characters) attachment filenames when displaying
	- Allow to auto-detect client language if none set (#1484434)
	- 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 (#1485314)
	- Mark form buttons that provide the most obvious operation (mainaction)
	- Added option 'quota_zero_as_unlimited' (#1484604)
	- Added PRE handling in html2text class (#1484740)
	- Added folder hierarchy collapsing
	- Added options to use syslog instead of log file (#1484850)
	- Added Logging & Debugging section in Installer
	- Fix In-Reply-To and References headers when composing saved draft message (#1485288)
	- Fix html message charset conversion for charsets with underline (#1485287)
	- Fix buttons status after contacts deletion (#1485233)
	- Fix escaping of To: and From: fields when building message body for reply or forward in the HTML editor (#1484904)
	- Use current mailbox name in template (#1485256)
	- Better fix for skipping untagged responses (#1485261)
	- Added pspell support patch by Kris Steinhoff (#1483960)
	- Enable spellchecker for HTML editor (#1485114)
	- Respect spellcheck_uri in tinyMCE spellchecker (#1484196)
	- Case insensitive contacts searching using PostgreSQL (#1485259)
	- Make default imap folders configurable for each user (#1485075)
	- Save outgoing mail to selectable folder (#1324581)
	- Fix hiding of mark menu when clicking th button again (#1484944)
	- Use long date format in print mode (#1485191)
	- Updated TinyMCE to version 3.1.0.1
	- Re-enable autocomplete attribute for login form (#1485211)
	- Check PERMANENTFLAGS before saving $MDNSent flag (#1484963, #1485163)
	- Added flag column on messages list (#1484623)
	- Patched Mail/MimePart.php (http://pear.php.net/bugs/bug.php?id=14232)
	- Allow trash/junk subfolders to be purged (#1485085)
	- Store compose parameters in session and redirect to a unique URL
	- Fixed CRAM-MD5 authentication (#1484819)
	- Fixed forwarding messages with one HTML attachment (#1484442)
	- Fixed encoding of message/rfc822 attachments and image/pjpeg handling (#1484914)
	- 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 (#1484601)
	- User preferences grouped in more fieldsets
	- Fix corrupted MIME headers of messages in Sent folder (#1485111)
	- Fixed bug in MDB2 package: http://pear.php.net/bugs/bug.php?id=14124
	- Use keypress instead of keydown to select list's row (#1484816)
	- Don't call expunge and don't remove message row after message move if flag_for_deletion is set to true (#1485002)

	RELEASE 0.2-ALPHA
	-----------------
	- Added option to disable autocompletion from selected LDAP address books (#1484922)
	- TLS support in LDAP connections: 'use_tls' property (#1485104)
	- Fixed removing messages from search set after deleting them (#1485106)
	- imap.inc: Fixed iil_C_FetchStructureString() to handle many
	literal strings in response (#1484969)
	- Support for subfolders in default/protected folders (#1484665)
	- Disallowed delimiter in folder name (#1484803)
	- Support " and \ in folder names
	- Escape \ in login (#1484614)
	- Better HTML sanitization with the DOM-based washtml script (#1484701)
	- Fixed sorting of folders with non-ascii characters
	- Fixed Mysql DDL for default identities creation (#1485070)
	- In Preferences added possibility to configure 'read_when_deleted',
	'mdn_requests', 'flag_for_deletion' options
	- Made IMAP auth type configurable (#1483825)
	- Fixed empty values with FROM_UNIXTIME() in rcube_mdb2 (#1485055)
	- Fixed attachment list on IE 6/7 (#1484807)
	- Fixed JavaScript in compose.html that shows cc/bcc fields if populated
	- Make password input fields of type password in installer (#1484886)
	- Don't attempt to delete cache entries if enable_caching is FALSE (#1485051)
	- Optimized messages sorting on servers without sort capability (#1485049)
	- Corrected message headers decoding when charset isn't specified and improved
	support for native languages (#1485050, #1485048)
	- Expanded LDAP configuration options to support LDAP server writes.
	- Installer: encode special characters in DB username/password (#1485042)
	- Fixed management of folders with national characters in names (#1485036, #1485001)
	- Fixed identities saving when using MDB2 pgsql driver (#1485032)
	- Fixed BCC header reset (#1484997)
	- Improved messages list performance - patch from Justin Heesemann
	- Append skin_path to images location only when it starts with '/' sign (#1484859)
	- Fix IMAP response in message body when message has no body (#1484964)
	- Fixed non-RFC dates formatting (#1484901)
	- Fixed typo in set_charset() (#1484991)
	- Decode entities when inserting HTML signature to plain text message (#1484990)
	- HTML editing is now working with PHP5 updates and TinyMCE v3.0.6
	- Fixed signature loading on Windows (#1484545)
	- Added language support to HTML editing (#1484862)
	- Fixed remove signature when replying (#1333167)
	- Fixed problem with line with a space at the end (#1484916)
	- Fixed <!DOCTYPE> tag filtering (#1484391)
	- Fixed <?xml> tag filtering (#1484403)
	- Added sections (fieldset+label) in Settings interface
	- Mark as read in one action with message preview (#1484972)
	- Deleted redundant quota reads (#1484972)
	- Added options for empty trash and expunge inbox on logout (#1483863)
	- 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 (#1484942)
	- Remove hard-coded image size in skin templates (#1484893)
	- Database schema improvements (dropped unnecessary indexes)
	- Fixed creating a new folder with a comma in its name (#1484681)
	- Fixed sorting of messages when default mailbox is empty (#1484317)
	- Improve message previewpane - less loading (#1484316)
	- Fixed login form autoompletion (#1484839)
	- Fixed virtuser_query option for mdb2 backend (#1484874)
	- Fixed attachment resoting from Drafts when message body was empty (#1484506)
	- Fixed usage of ob_gzhandler (#1484851)
	- Fixed message part window in IE6 (#1484610)
	- Fixed decoding of mime-encoded strings (#1484191)
	- Fixed some iconv/mb_string problems (#1484598)
	- Correctly quote mailbox name when using in URL (#1484313)
	- Fixed "headers already sent" errors (#1484860)

	RELEASE 0.1-STABLE
	------------------
	- Added interactive installer script
	- Fix folder adding/renaming inspired by #1484800
	- Localize folder name in page title (#1484785)
	- Fix code using wrong variable name (#1484018)
	- Allow to send mail with BCC recipients only
	- condense TinyMCE toolbar down to one line, removing table buttons (#1484747)
	- Add function to mark the selected messages as read/unread (#1457360)
	- Also do charset decoding as suggested in RFC 2231 (fix #1484321)
	- Show message count in folder list and hint when creating a subfolder
	- Distinguish ssl and tls for imap connections (#1484667)
	- Added some charset aliases to fix typical mis-labelling (#1484565)
	- Remember decision to display images for a certain message during session (#1484754)
	- Truncate attachment filenames to 55 characters due to an IE bug (#1484757)
	- Make sending of read receipts configurable
	- Respect config when localize folder names (#1484707)
	- Also respect receipt and priority settings when re-opening a draft message
	- Remember search results (closes #1483883), 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 (#1484557)
	- Implement Message-Disposition-Notification (Receipts)
	- Fix overriding of session vars when register_globals is on (#1484670)
	- Fix bug with case-sensitive folder names (#1484245)
	- 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 (#1484176)
	- Switch to/from when searcing in Sent folder (#1484555)
	- Correctly read the References header (#1484646)
	- Unset old cookie before sending a new value (#1484639)
	- Correctly decode attachments when downloading them (#1484645 and #1484642)
	- Suppress IE errors when clearing attachments form (#1484356)
	- Log error when login fails due to auto_create_user turned off
	- Filter linked/imported CSS files (closes #1484056)
	- Improve message compose screen (closes #1484383)
	- Select next row after removing one from list (#1484387)

	RELEASE 0.1-RC2
	---------------
	- Enable drag-&-dropping of folders to a new parent and allow to create subfolders (#1457344)
	- Suppress IE errors when clearing attachments form (#1484356)
	- Set preferences field in user table to NULL (#1484386)
	- Log error when login fails due to auto_create_user turned off
	- Filter linked/imported CSS files (closes #1484056)
	- Improve message compose screen (closes #1484383)
	- Select next row after removing one from list (#1484387)
	- Make smtp HELO/EHLO hostname configurable (#1484067)
	- IPv6 Compatability (#1484322), Patch #1484373
	- Unlock interface when message sending fails (#1484570)
	- Eval PHP code in template includes (if configured)
	- Show message when folder is empty. Mo more static text in table (#1484395)
	- Only display unread count in page title when new messages arrived
	- Fixed wrong delete button tooltip (#1483965)
	- Fixed charset encoding bug (#1484429)
	- Applied patch for LDAP version (#1484552)
	- Improved XHTML validation
	- Fix message list selection (#1484550)
	- Better fix lowercased usernames (#1484473)
	- Update pngbehavior Script as suggested in #1484490
	- 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 (#1484402)
	- Add alternative for getallheaders() (fix #1484508)
	- Identify mailboxes case-sensitive
	- Sort mailbox list case-insensitive (closes #1484338)
	- Fix display of multipart messages from Apple Mail (closes #1484027)
	- 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 #1484426)
	- Added //IGNORE to iconv call (patch #1484420, closes #1484023)
	- Check if mbstring supports charset (#1484290 and #1484292)
	- Prefer iconv over mbstring (as suggested in #1484292)
	- Check filesize of template includes (#1484409)
	- Fixed bug with buttons not dimming/enabling properly after switching folders
	- Fixed compose window becoming unresponsive after saving a draft (#1484487)
	- Re-enabled "Back" button in compose window now that bug #1484487 is fixed
	- Fixed unresponsive interface issue when downloading attachments (#1484496)
	- 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 (#1484499)
	- Fix status message bug #1484464 with regard to #1484353
	- Fix address adding bug reported by David Koblas
	- Applied socket error patch by Thomas Mangin
	- Pass-by-reference workarround for PHP5 in sendmail.inc
	- Fixed buggy imap_root settings (closes #1484379)
	- Prevent default events on subject links (#1484399)
	- Use HTTP-POST requests for actions that change state

	RELEASE 0.1-RC1
	---------------
	- Use global filters and bind username/ for Ldap searches (#1484159)
	- Hide quota display if imap server does not support it
	- Hide address groups if no LDAP servers configured
	- Add link to message subjects (closes #1484257)
	- Better SQL query for contact listing/search (closes #1484369)
	- Fixed marking as read in preview pane (closes #1484364)
	- CSS hack to display attachments correctly in IE6
	- Wrap message body text (closes #1484148)
	- LDAP access is back in address book (closes #1484087)
	- Added search function for contacts
	- New Template parsing and output encoding
	- Fixed bugs #1484119 and #1483978
	- Fixed message moving procedure (closes #1484308)
	- Fixed display of multiple attachments (closes #1466563)
	- Fixed check for new messages (closes #1484310)
	- List attachments without filename
	- New session authentication: Change sessid cookie when login, authentication with sessauth cookie is now configurable.
	Should close bugs #1483951 and #1484299
	- Correctly translate mailbox names (closes #1484276)
	- Quote e-mail address links (closes #1484300)
	- 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 #1484045)
	- Also use user_id for unique key in messages table (closes #1484074)
	- Hide contacts drop down on blur (closes #1484203)
	- 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 #1484198)
	- Fixed bug in Postgres DB handling (closes #1484068)
	- Fixed bug of invalid calls to fetchRow() in rcube_db.inc (closes #1484280)
	- Fixed array_merge bug (closes #1484281)
	- Fixed flag for deletion in list view (closes #1484264)
	- Finally support semicolons as recipient separator (closes ##1484251)
	- Fixed message headers (subject) encoding
	- check if safe mode is on or not (closes #1484269)
	- Show "no subject" in message list if subject is missing (closes #1484243)
	- Solved page caching of message preview (closes #1484153)
	- Only use gzip compression if configured (closes #1484236)
	- Fixed priority selector issue (#1484150)
	- Fixed some CSS issues in default skin (closes #1484210 and #1484161)
	- Prevent from double quoting of numeric HTML character references (closes #1484253)
	- Fixed display of HTML message attachments (closes #1484178)
	- Applied patch for preview caching (closes #1484186)
	- Added error handling for attachment uploads
	- Use multibyte safe string functions where necessary (closes #1483988)
	- 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 #1484131)
	- Show remote images when opening HTML message part as attachment
	- Improve memory usage when sending mail (closes #1484098)
	- Mark messages as read once the preview is loaded (closes #1484132)
	- Include smtp final response in log (closes #1484081)
	- Corrected date string in sent message header (closes #1484125)
	- Correclty choose "To" column in sent and draft mailboxes (closes #1483943)
	- Changed srong tooltips for message browse buttons (closes #1483930)
	- Fixed signature delimeter character to be standard (Bug #1484035)
	- Fixed XSS vulnerability (Bug #1484109)
	- Remove newlines from mail headers (Bug #1484031)
	- Selection issues when moving/deleting (Bug #1484044)
	- Applied patch of Clement Moulin for imap host auto-selection
	- ISO-encode IMAP password for plaintext login (Bugs #1483977 & #1483886)
	- Fixed folder name encoding in subscription list (Bug #1484113)
	- Fixed JS errors in identity list (Bug #1484120)
	- Translate foldernames in folder form (closes #1484113)
	- 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 #1484017)
	- Enable contact editing right after creation (Bug #1459641)
	- Correct UTF-7 to UTF-8 conversion if mbstring is not available
	- Fixed IMAP fetch of message body (Bug #1484019)
	- Fixed safe_mode problems (Bug #1418381)
	- Fixed wrong header encoding (Bug #1483976)
	- Made automatic draft saving configurable
	- Fixed JS bug when renaming folders (Bug #1483989)
	- 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 #1445501)
	- Fixed saving of contact into MySQL from LDAP query results (Ticket #1483820)
	- Fixed folder renaming: unsubscribe before rename (Bug #1483920)
	- Finalized new message parsing (+ chaching)
	- Fixed wrong usage of mbstring (Bug #1462439)
	- Set default spelling language (Ticket #1483938)
	- Added support for Nox Spell Server
	- Re-built message parsing (Bug #1327068)
	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/index.php b/index.php
	index 0ad371a4a..05fc641b5 100644
	--- a/index.php
	+++ b/index.php
	@@ -1,305 +1,305 @@
	<?php
	/*
	+-------------------------------------------------------------------------+
	\| Roundcube Webmail IMAP Client \|
	\| Version 0.9-git \|
	\| \|
	\| Copyright (C) 2005-2012, The Roundcube Dev Team \|
	\| \|
	\| This program is free software: you can redistribute it and/or modify \|
	\| it under the terms of the GNU General Public License (with exceptions \|
	\| for skins & plugins) as published by the Free Software Foundation, \|
	\| either version 3 of the License, or (at your option) any later version. \|
	\| \|
	\| This file forms part of the Roundcube Webmail Software for which the \|
	\| following exception is added: Plugins and Skins which merely make \|
	\| function calls to the Roundcube Webmail Software, and for that purpose \|
	\| include it by reference shall not be considered modifications of \|
	\| the software. \|
	\| \|
	\| If you wish to use this file in another project or create a modified \|
	\| version that will not be part of the Roundcube Webmail Software, you \|
	\| may remove the exception above and use this source code under the \|
	\| original version of the license. \|
	\| \|
	\| This program is distributed in the hope that it will be useful, \|
	\| but WITHOUT ANY WARRANTY; without even the implied warranty of \|
	\| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the \|
	\| GNU General Public License for more details. \|
	\| \|
	\| You should have received a copy of the GNU General Public License \|
	\| along with this program. If not, see http://www.gnu.org/licenses/. \|
	\| \|
	+-------------------------------------------------------------------------+
	\| Author: Thomas Bruederli <roundcube@gmail.com> \|
	+-------------------------------------------------------------------------+
	*/

	// include environment
	require_once 'program/include/iniset.php';

	// init application, start session, init output class, etc.
	$RCMAIL = rcmail::get_instance();

	// Make the whole PHP output non-cacheable (#1487797)
	$RCMAIL->output->nocacheing_headers();

	// turn on output buffering
	ob_start();

	// check if config files had errors
	if ($err_str = $RCMAIL->config->get_error()) {
	rcmail::raise_error(array(
	'code' => 601,
	'type' => 'php',
	'message' => $err_str), false, true);
	}

	// check DB connections and exit on failure
	if ($err_str = $RCMAIL->db->is_error()) {
	rcmail::raise_error(array(
	'code' => 603,
	'type' => 'db',
	'message' => $err_str), FALSE, TRUE);
	}

	// error steps
	if ($RCMAIL->action == 'error' && !empty($_GET['_code'])) {
	rcmail::raise_error(array('code' => hexdec($_GET['_code'])), FALSE, TRUE);
	}

	// check if https is required (for login) and redirect if necessary
	if (empty($_SESSION['user_id']) && ($force_https = $RCMAIL->config->get('force_https', false))) {
	$https_port = is_bool($force_https) ? 443 : $force_https;
	if (!rcube_utils::https_check($https_port)) {
	$host = preg_replace('/:[0-9]+$/', '', $_SERVER['HTTP_HOST']);
	$host .= ($https_port != 443 ? ':' . $https_port : '');
	header('Location: https://' . $host . $_SERVER['REQUEST_URI']);
	exit;
	}
	}

	// trigger startup plugin hook
	$startup = $RCMAIL->plugins->exec_hook('startup', array('task' => $RCMAIL->task, 'action' => $RCMAIL->action));
	$RCMAIL->set_task($startup['task']);
	$RCMAIL->action = $startup['action'];

	// try to log in
	if ($RCMAIL->task == 'login' && $RCMAIL->action == 'login') {
	$request_valid = $_SESSION['temp'] && $RCMAIL->check_request(rcube_utils::INPUT_POST, 'login');

	// purge the session in case of new login when a session already exists
	$RCMAIL->kill_session();

	$auth = $RCMAIL->plugins->exec_hook('authenticate', array(
	'host' => $RCMAIL->autoselect_host(),
	'user' => trim(rcube_utils::get_input_value('_user', rcube_utils::INPUT_POST)),
	'pass' => rcube_utils::get_input_value('_pass', rcube_utils::INPUT_POST, true,
	$RCMAIL->config->get('password_charset', 'ISO-8859-1')),
	'cookiecheck' => true,
	'valid' => $request_valid,
	));

	// Login
	if ($auth['valid'] && !$auth['abort'] &&
	$RCMAIL->login($auth['user'], $auth['pass'], $auth['host'], $auth['cookiecheck'])
	) {
	// create new session ID, don't destroy the current session
	// it was destroyed already by $RCMAIL->kill_session() above
	$RCMAIL->session->remove('temp');
	$RCMAIL->session->regenerate_id(false);

	// send auth cookie if necessary
	$RCMAIL->session->set_auth_cookie();

	// log successful login
	$RCMAIL->log_login();

	// restore original request parameters
	$query = array();
	if ($url = rcube_utils::get_input_value('_url', rcube_utils::INPUT_POST)) {
	parse_str($url, $query);

	// prevent endless looping on login page
	if ($query['_task'] == 'login')
	unset($query['_task']);

	// prevent redirect to compose with specified ID (#1488226)
	if ($query['_action'] == 'compose' && !empty($query['_id']))
	$query = array();
	}

	// allow plugins to control the redirect url after login success
	$redir = $RCMAIL->plugins->exec_hook('login_after', $query + array('_task' => 'mail'));
	unset($redir['abort'], $redir['_err']);

	// send redirect
	$OUTPUT->redirect($redir);
	}
	else {
	if (!$auth['valid']) {
	$error_code = RCMAIL::ERROR_INVALID_REQUEST;
	}
	else {
	$error_code = $auth['error'] ? $auth['error'] : $RCMAIL->login_error();
	}

	$error_labels = array(
	RCMAIL::ERROR_STORAGE => 'storageerror',
	RCMAIL::ERROR_COOKIES_DISABLED => 'cookiesdisabled',
	RCMAIL::ERROR_INVALID_REQUEST => 'invalidrequest',
	RCMAIL::ERROR_INVALID_HOST => 'invalidhost',
	);

	$error_message = $error_labels[$error_code] ? $error_labels[$error_code] : 'loginfailed';

	$OUTPUT->show_message($error_message, 'warning');
	$RCMAIL->plugins->exec_hook('login_failed', array(
	'code' => $error_code, 'host' => $auth['host'], 'user' => $auth['user']));
	$RCMAIL->kill_session();
	}
	}

	// end session (after optional referer check)
	else if ($RCMAIL->task == 'logout' && isset($_SESSION['user_id']) && (!$RCMAIL->config->get('referer_check') \|\| rcmail::check_referer())) {
	$userdata = array(
	'user' => $_SESSION['username'],
	'host' => $_SESSION['storage_host'],
	'lang' => $RCMAIL->user->language,
	);
	$OUTPUT->show_message('loggedout');
	$RCMAIL->logout_actions();
	$RCMAIL->kill_session();
	$RCMAIL->plugins->exec_hook('logout_after', $userdata);
	}

	// check session and auth cookie
	else if ($RCMAIL->task != 'login' && $_SESSION['user_id'] && $RCMAIL->action != 'send') {
	if (!$RCMAIL->session->check_auth()) {
	$RCMAIL->kill_session();
	$session_error = true;
	}
	}

	// not logged in -> show login page
	if (empty($RCMAIL->user->ID)) {
	// log session failures
	$task = rcube_utils::get_input_value('_task', rcube_utils::INPUT_GPC);
	if ($task && !in_array($task, array('login','logout')) && !$session_error && ($sess_id = $_COOKIE[ini_get('session.name')])) {
	$RCMAIL->session->log("Aborted session " . $sess_id . "; no valid session data found");
	$session_error = true;
	}

	if ($OUTPUT->ajax_call)
	$OUTPUT->redirect(array('_err' => 'session'), 2000);

	if (!empty($_REQUEST['_framed']))
	$OUTPUT->command('redirect', $RCMAIL->url(array('_err' => 'session')));

	// check if installer is still active
	if ($RCMAIL->config->get('enable_installer') && is_readable('./installer/index.php')) {
	$OUTPUT->add_footer(html::div(array('style' => "background:#ef9398; border:2px solid #dc5757; padding:0.5em; margin:2em auto; width:50em"),
	html::tag('h2', array('style' => "margin-top:0.2em"), "Installer script is still accessible") .
	html::p(null, "The install script of your Roundcube installation is still stored in its default location!") .
	html::p(null, "Please <b>remove</b> the whole <tt>installer</tt> folder from the Roundcube directory because .
	these files may expose sensitive configuration data like server passwords and encryption keys
	to the public. Make sure you cannot access the <a href=\"./installer/\">installer script</a> from your browser.")
	)
	);
	}

	if ($session_error \|\| $_REQUEST['_err'] == 'session')
	$OUTPUT->show_message('sessionerror', 'error', null, true, -1);

	$plugin = $RCMAIL->plugins->exec_hook('unauthenticated', array('task' => 'login', 'error' => $session_error));

	$RCMAIL->set_task($plugin['task']);
	$OUTPUT->send($plugin['task']);
	}
	// CSRF prevention
	else {
	// don't check for valid request tokens in these actions
	$request_check_whitelist = array('login'=>1, 'spell'=>1, 'spell_html'=>1);

	if (!$request_check_whitelist[$RCMAIL->action]) {
	// check client X-header to verify request origin
	if ($OUTPUT->ajax_call) {
	if (rcube_utils::request_header('X-Roundcube-Request') != $RCMAIL->get_request_token()) {
	header('HTTP/1.1 403 Forbidden');
	die("Invalid Request");
	}
	}
	// check request token in POST form submissions
	else if (!empty($_POST) && !$RCMAIL->check_request()) {
	$OUTPUT->show_message('invalidrequest', 'error');
	$OUTPUT->send($RCMAIL->task);
	}

	// check referer if configured
	if ($RCMAIL->config->get('referer_check') && !rcmail::check_referer()) {
	raise_error(array(
	'code' => 403, 'type' => 'php',
	'message' => "Referer check failed"), true, true);
	}
	}
	}

	// we're ready, user is authenticated and the request is safe
	$plugin = $RCMAIL->plugins->exec_hook('ready', array('task' => $RCMAIL->task, 'action' => $RCMAIL->action));
	$RCMAIL->set_task($plugin['task']);
	$RCMAIL->action = $plugin['action'];

	-
	// handle special actions
	if ($RCMAIL->action == 'keep-alive') {
	$OUTPUT->reset();
	$RCMAIL->plugins->exec_hook('keep_alive', array());
	$OUTPUT->send();
	}
	else if ($RCMAIL->action == 'save-pref') {
	include INSTALL_PATH . 'program/steps/utils/save_pref.inc';
	}


	// include task specific functions
	if (is_file($incfile = INSTALL_PATH . 'program/steps/'.$RCMAIL->task.'/func.inc'))
	include_once $incfile;

	// allow 5 "redirects" to another action
	$redirects = 0; $incstep = null;
	while ($redirects < 5) {
	// execute a plugin action
	if ($RCMAIL->plugins->is_plugin_task($RCMAIL->task)) {
	if (!$RCMAIL->action) $RCMAIL->action = 'index';
	$RCMAIL->plugins->exec_action($RCMAIL->task.'.'.$RCMAIL->action);
	break;
	}
	else if (preg_match('/^plugin\./', $RCMAIL->action)) {
	$RCMAIL->plugins->exec_action($RCMAIL->action);
	break;
	}
	// try to include the step file
	else if (($stepfile = $RCMAIL->get_action_file())
	&& is_file($incfile = INSTALL_PATH . 'program/steps/'.$RCMAIL->task.'/'.$stepfile)
	) {
	- include $incfile;
	+ // include action file only once (in case it don't exit)
	+ include_once $incfile;
	$redirects++;
	}
	else {
	break;
	}
	}


	// parse main template (default)
	$OUTPUT->send($RCMAIL->task);


	// if we arrive here, something went wrong
	rcmail::raise_error(array(
	'code' => 404,
	'type' => 'php',
	'line' => __LINE__,
	'file' => __FILE__,
	'message' => "Invalid request"), true, true);

	diff --git a/program/include/rcmail.php b/program/include/rcmail.php
	index a755aa846..04b87e48c 100644
	--- a/program/include/rcmail.php
	+++ b/program/include/rcmail.php
	@@ -1,2108 +1,2111 @@
	<?php

	/*
	+-----------------------------------------------------------------------+
	\| program/include/rcmail.php \|
	\| \|
	\| This file is part of the Roundcube Webmail client \|
	\| Copyright (C) 2008-2012, The Roundcube Dev Team \|
	\| Copyright (C) 2011-2012, Kolab Systems AG \|
	\| \|
	\| Licensed under the GNU General Public License version 3 or \|
	\| any later version with exceptions for skins & plugins. \|
	\| See the README file for a full license statement. \|
	\| \|
	\| PURPOSE: \|
	\| Application class providing core functions and holding \|
	\| instances of all 'global' objects like db- and imap-connections \|
	+-----------------------------------------------------------------------+
	\| Author: Thomas Bruederli <roundcube@gmail.com> \|
	\| Author: Aleksander Machniak <alec@alec.pl> \|
	+-----------------------------------------------------------------------+
	*/


	/**
	* Application class of Roundcube Webmail
	* implemented as singleton
	*
	* @package Core
	*/
	class rcmail extends rcube
	{
	/**
	* Main tasks.
	*
	* @var array
	*/
	static public $main_tasks = array('mail','settings','addressbook','login','logout','utils','dummy');

	/**
	* Current task.
	*
	* @var string
	*/
	public $task;

	/**
	* Current action.
	*
	* @var string
	*/
	public $action = '';
	public $comm_path = './';

	private $address_books = array();
	private $action_map = array();


	const JS_OBJECT_NAME = 'rcmail';

	const ERROR_STORAGE = -2;
	const ERROR_INVALID_REQUEST = 1;
	const ERROR_INVALID_HOST = 2;
	const ERROR_COOKIES_DISABLED = 3;


	/**
	* This implements the 'singleton' design pattern
	*
	* @return rcmail The one and only instance
	*/
	static function get_instance()
	{
	if (!self::$instance \|\| !is_a(self::$instance, 'rcmail')) {
	self::$instance = new rcmail();
	self::$instance->startup(); // init AFTER object was linked with self::$instance
	}

	return self::$instance;
	}


	/**
	* Initial startup function
	* to register session, create database and imap connections
	*/
	protected function startup()
	{
	$this->init(self::INIT_WITH_DB \| self::INIT_WITH_PLUGINS);

	// start session
	$this->session_init();

	// create user object
	$this->set_user(new rcube_user($_SESSION['user_id']));

	// set task and action properties
	$this->set_task(rcube_utils::get_input_value('_task', rcube_utils::INPUT_GPC));
	$this->action = asciiwords(rcube_utils::get_input_value('_action', rcube_utils::INPUT_GPC));

	// reset some session parameters when changing task
	if ($this->task != 'utils') {
	if ($this->session && $_SESSION['task'] != $this->task)
	$this->session->remove('page');
	// set current task to session
	$_SESSION['task'] = $this->task;
	}

	// init output class
	if (!empty($_REQUEST['_remote']))
	$GLOBALS['OUTPUT'] = $this->json_init();
	else
	$GLOBALS['OUTPUT'] = $this->load_gui(!empty($_REQUEST['_framed']));

	// load plugins
	$this->plugins->init($this, $this->task);
	$this->plugins->load_plugins((array)$this->config->get('plugins', array()), array('filesystem_attachments', 'jqueryui'));
	}


	/**
	* Setter for application task
	*
	* @param string Task to set
	*/
	public function set_task($task)
	{
	$task = asciiwords($task);

	if ($this->user && $this->user->ID)
	$task = !$task ? 'mail' : $task;
	else
	$task = 'login';

	$this->task = $task;
	$this->comm_path = $this->url(array('task' => $this->task));

	if ($this->output)
	$this->output->set_env('task', $this->task);
	}


	/**
	* Setter for system user object
	*
	* @param rcube_user Current user instance
	*/
	public function set_user($user)
	{
	if (is_object($user)) {
	$this->user = $user;

	// overwrite config with user preferences
	$this->config->set_user_prefs((array)$this->user->get_prefs());
	}

	$lang = $this->language_prop($this->config->get('language', $_SESSION['language']));
	$_SESSION['language'] = $this->user->language = $lang;

	// set localization
	setlocale(LC_ALL, $lang . '.utf8', $lang . '.UTF-8', 'en_US.utf8', 'en_US.UTF-8');

	// workaround for http://bugs.php.net/bug.php?id=18556
	if (in_array($lang, array('tr_TR', 'ku', 'az_AZ'))) {
	setlocale(LC_CTYPE, 'en_US.utf8', 'en_US.UTF-8');
	}
	}


	/**
	* Return instance of the internal address book class
	*
	* @param string Address book identifier (-1 for default addressbook)
	* @param boolean True if the address book needs to be writeable
	*
	* @return rcube_contacts Address book object
	*/
	public function get_address_book($id, $writeable = false)
	{
	$contacts = null;
	$ldap_config = (array)$this->config->get('ldap_public');

	// 'sql' is the alias for '0' used by autocomplete
	if ($id == 'sql')
	$id = '0';
	else if ($id == -1) {
	$id = $this->config->get('default_addressbook');
	$default = true;
	}

	// use existing instance
	if (isset($this->address_books[$id]) && ($this->address_books[$id] instanceof rcube_addressbook)) {
	$contacts = $this->address_books[$id];
	}
	else if ($id && $ldap_config[$id]) {
	$contacts = new rcube_ldap($ldap_config[$id], $this->config->get('ldap_debug'), $this->config->mail_domain($_SESSION['storage_host']));
	}
	else if ($id === '0') {
	$contacts = new rcube_contacts($this->db, $this->get_user_id());
	}
	else {
	$plugin = $this->plugins->exec_hook('addressbook_get', array('id' => $id, 'writeable' => $writeable));

	// plugin returned instance of a rcube_addressbook
	if ($plugin['instance'] instanceof rcube_addressbook) {
	$contacts = $plugin['instance'];
	}
	}

	// Get first addressbook from the list if configured default doesn't exist
	// This can happen when user deleted the addressbook (e.g. Kolab folder)
	if (!$contacts && (!$id \|\| $default)) {
	$source = reset($this->get_address_sources($writeable));
	if (!empty($source)) {
	$contacts = $this->get_address_book($source['id']);
	if ($contacts)
	$id = $source['id'];
	}
	}

	if (!$contacts) {
	self::raise_error(array(
	'code' => 700, 'type' => 'php',
	'file' => __FILE__, 'line' => __LINE__,
	'message' => "Addressbook source ($id) not found!"),
	true, true);
	}

	if ($writeable && $contacts->readonly) {
	return null;
	}

	// set configured sort order
	if ($sort_col = $this->config->get('addressbook_sort_col'))
	$contacts->set_sort_order($sort_col);

	// add to the 'books' array for shutdown function
	$this->address_books[$id] = $contacts;

	return $contacts;
	}


	/**
	* Return address books list
	*
	* @param boolean True if the address book needs to be writeable
	*
	* @return array Address books array
	*/
	public function get_address_sources($writeable = false)
	{
	$abook_type = strtolower($this->config->get('address_book_type'));
	$ldap_config = $this->config->get('ldap_public');
	$autocomplete = (array) $this->config->get('autocomplete_addressbooks');
	$list = array();

	// We are using the DB address book or a plugin address book
	if ($abook_type != 'ldap' && $abook_type != '') {
	if (!isset($this->address_books['0']))
	$this->address_books['0'] = new rcube_contacts($this->db, $this->get_user_id());
	$list['0'] = array(
	'id' => '0',
	'name' => $this->gettext('personaladrbook'),
	'groups' => $this->address_books['0']->groups,
	'readonly' => $this->address_books['0']->readonly,
	'autocomplete' => in_array('sql', $autocomplete),
	'undelete' => $this->address_books['0']->undelete && $this->config->get('undo_timeout'),
	);
	}

	if ($ldap_config) {
	$ldap_config = (array) $ldap_config;
	foreach ($ldap_config as $id => $prop) {
	// handle misconfiguration
	if (empty($prop) \|\| !is_array($prop)) {
	continue;
	}
	$list[$id] = array(
	'id' => $id,
	'name' => html::quote($prop['name']),
	'groups' => is_array($prop['groups']),
	'readonly' => !$prop['writable'],
	'hidden' => $prop['hidden'],
	'autocomplete' => in_array($id, $autocomplete)
	);
	}
	}

	$plugin = $this->plugins->exec_hook('addressbooks_list', array('sources' => $list));
	$list = $plugin['sources'];

	foreach ($list as $idx => $item) {
	// register source for shutdown function
	if (!is_object($this->address_books[$item['id']]))
	$this->address_books[$item['id']] = $item;
	// remove from list if not writeable as requested
	if ($writeable && $item['readonly'])
	unset($list[$idx]);
	}

	return $list;
	}


	/**
	* Init output object for GUI and add common scripts.
	* This will instantiate a rcube_output_html object and set
	* environment vars according to the current session and configuration
	*
	* @param boolean True if this request is loaded in a (i)frame
	* @return rcube_output_html Reference to HTML output object
	*/
	public function load_gui($framed = false)
	{
	// init output page
	if (!($this->output instanceof rcube_output_html))
	$this->output = new rcube_output_html($this->task, $framed);

	// set keep-alive interval
	$this->output->set_env('keep_alive', $this->config->get('keep_alive', 0));
	$this->output->set_env('session_lifetime', $this->config->get('session_lifetime', 0) * 60);

	if ($framed) {
	$this->comm_path .= '&_framed=1';
	$this->output->set_env('framed', true);
	}

	$this->output->set_env('task', $this->task);
	$this->output->set_env('action', $this->action);
	$this->output->set_env('comm_path', $this->comm_path);
	$this->output->set_charset(RCMAIL_CHARSET);

	// add some basic labels to client
	- $this->output->add_label('loading', 'servererror', 'requesttimedout');
	+ $this->output->add_label('loading', 'servererror', 'requesttimedout', 'refreshing');

	return $this->output;
	}


	/**
	* Create an output object for JSON responses
	*
	* @return rcube_output_json Reference to JSON output object
	*/
	public function json_init()
	{
	if (!($this->output instanceof rcube_output_json))
	$this->output = new rcube_output_json($this->task);

	return $this->output;
	}


	/**
	* Create session object and start the session.
	*/
	public function session_init()
	{
	parent::session_init();

	// set initial session vars
	if (!$_SESSION['user_id'])
	$_SESSION['temp'] = true;

	// restore skin selection after logout
	if ($_SESSION['temp'] && !empty($_SESSION['skin']))
	$this->config->set('skin', $_SESSION['skin']);
	}


	/**
	* Perfom login to the mail server and to the webmail service.
	* This will also create a new user entry if auto_create_user is configured.
	*
	* @param string Mail storage (IMAP) user name
	* @param string Mail storage (IMAP) password
	* @param string Mail storage (IMAP) host
	* @param bool Enables cookie check
	*
	* @return boolean True on success, False on failure
	*/
	function login($username, $pass, $host = null, $cookiecheck = false)
	{
	$this->login_error = null;

	if (empty($username)) {
	return false;
	}

	if ($cookiecheck && empty($_COOKIE)) {
	$this->login_error = self::ERROR_COOKIES_DISABLED;
	return false;
	}

	$config = $this->config->all();

	if (!$host)
	$host = $config['default_host'];

	// Validate that selected host is in the list of configured hosts
	if (is_array($config['default_host'])) {
	$allowed = false;
	foreach ($config['default_host'] as $key => $host_allowed) {
	if (!is_numeric($key))
	$host_allowed = $key;
	if ($host == $host_allowed) {
	$allowed = true;
	break;
	}
	}
	if (!$allowed) {
	$host = null;
	}
	}
	else if (!empty($config['default_host']) && $host != rcube_utils::parse_host($config['default_host'])) {
	$host = null;
	}

	if (!$host) {
	$this->login_error = self::ERROR_INVALID_HOST;
	return false;
	}

	// parse $host URL
	$a_host = parse_url($host);
	if ($a_host['host']) {
	$host = $a_host['host'];
	$ssl = (isset($a_host['scheme']) && in_array($a_host['scheme'], array('ssl','imaps','tls'))) ? $a_host['scheme'] : null;
	if (!empty($a_host['port']))
	$port = $a_host['port'];
	else if ($ssl && $ssl != 'tls' && (!$config['default_port'] \|\| $config['default_port'] == 143))
	$port = 993;
	}

	if (!$port) {
	$port = $config['default_port'];
	}

	/* Modify username with domain if required
	Inspired by Marco <P0L0_notspam_binware.org>
	*/
	// Check if we need to add domain
	if (!empty($config['username_domain']) && strpos($username, '@') === false) {
	if (is_array($config['username_domain']) && isset($config['username_domain'][$host]))
	$username .= '@'.rcube_utils::parse_host($config['username_domain'][$host], $host);
	else if (is_string($config['username_domain']))
	$username .= '@'.rcube_utils::parse_host($config['username_domain'], $host);
	}

	if (!isset($config['login_lc'])) {
	$config['login_lc'] = 2; // default
	}

	// Convert username to lowercase. If storage backend
	// is case-insensitive we need to store always the same username (#1487113)
	if ($config['login_lc']) {
	if ($config['login_lc'] == 2 \|\| $config['login_lc'] === true) {
	$username = mb_strtolower($username);
	}
	else if (strpos($username, '@')) {
	// lowercase domain name
	list($local, $domain) = explode('@', $username);
	$username = $local . '@' . mb_strtolower($domain);
	}
	}

	// try to resolve email address from virtuser table
	if (strpos($username, '@') && ($virtuser = rcube_user::email2user($username))) {
	$username = $virtuser;
	}

	// Here we need IDNA ASCII
	// Only rcube_contacts class is using domain names in Unicode
	$host = rcube_utils::idn_to_ascii($host);
	$username = rcube_utils::idn_to_ascii($username);

	// user already registered -> overwrite username
	if ($user = rcube_user::query($username, $host)) {
	$username = $user->data['username'];
	}

	$storage = $this->get_storage();

	// try to log in
	if (!$storage->connect($host, $username, $pass, $port, $ssl)) {
	return false;
	}

	// user already registered -> update user's record
	if (is_object($user)) {
	// update last login timestamp
	$user->touch();
	}
	// create new system user
	else if ($config['auto_create_user']) {
	if ($created = rcube_user::create($username, $host)) {
	$user = $created;
	}
	else {
	self::raise_error(array(
	'code' => 620, 'type' => 'php',
	'file' => __FILE__, 'line' => __LINE__,
	'message' => "Failed to create a user record. Maybe aborted by a plugin?"
	), true, false);
	}
	}
	else {
	self::raise_error(array(
	'code' => 621, 'type' => 'php',
	'file' => __FILE__, 'line' => __LINE__,
	'message' => "Access denied for new user $username. 'auto_create_user' is disabled"
	), true, false);
	}

	// login succeeded
	if (is_object($user) && $user->ID) {
	// Configure environment
	$this->set_user($user);
	$this->set_storage_prop();

	// fix some old settings according to namespace prefix
	$this->fix_namespace_settings($user);

	// create default folders on first login
	if ($config['create_default_folders'] && (!empty($created) \|\| empty($user->data['last_login']))) {
	$storage->create_default_folders();
	}

	// set session vars
	$_SESSION['user_id'] = $user->ID;
	$_SESSION['username'] = $user->data['username'];
	$_SESSION['storage_host'] = $host;
	$_SESSION['storage_port'] = $port;
	$_SESSION['storage_ssl'] = $ssl;
	$_SESSION['password'] = $this->encrypt($pass);
	$_SESSION['login_time'] = time();

	if (isset($_REQUEST['_timezone']) && $_REQUEST['_timezone'] != '_default_')
	$_SESSION['timezone'] = rcube_utils::get_input_value('_timezone', rcube_utils::INPUT_GPC);

	// force reloading complete list of subscribed mailboxes
	$storage->clear_cache('mailboxes', true);

	return true;
	}

	return false;
	}


	/**
	* Returns error code of last login operation
	*
	* @return int Error code
	*/
	public function login_error()
	{
	if ($this->login_error) {
	return $this->login_error;
	}

	if ($this->storage && $this->storage->get_error_code() < -1) {
	return self::ERROR_STORAGE;
	}
	}


	/**
	* Auto-select IMAP host based on the posted login information
	*
	* @return string Selected IMAP host
	*/
	public function autoselect_host()
	{
	$default_host = $this->config->get('default_host');
	$host = null;

	if (is_array($default_host)) {
	$post_host = rcube_utils::get_input_value('_host', rcube_utils::INPUT_POST);
	$post_user = rcube_utils::get_input_value('_user', rcube_utils::INPUT_POST);

	list($user, $domain) = explode('@', $post_user);

	// direct match in default_host array
	if ($default_host[$post_host] \|\| in_array($post_host, array_values($default_host))) {
	$host = $post_host;
	}
	// try to select host by mail domain
	else if (!empty($domain)) {
	foreach ($default_host as $storage_host => $mail_domains) {
	if (is_array($mail_domains) && in_array_nocase($domain, $mail_domains)) {
	$host = $storage_host;
	break;
	}
	else if (stripos($storage_host, $domain) !== false \|\| stripos(strval($mail_domains), $domain) !== false) {
	$host = is_numeric($storage_host) ? $mail_domains : $storage_host;
	break;
	}
	}
	}

	// take the first entry if $host is still not set
	if (empty($host)) {
	list($key, $val) = each($default_host);
	$host = is_numeric($key) ? $val : $key;
	}
	}
	else if (empty($default_host)) {
	$host = rcube_utils::get_input_value('_host', rcube_utils::INPUT_POST);
	}
	else
	$host = rcube_utils::parse_host($default_host);

	return $host;
	}


	/**
	* Destroy session data and remove cookie
	*/
	public function kill_session()
	{
	$this->plugins->exec_hook('session_destroy');

	$this->session->kill();
	$_SESSION = array('language' => $this->user->language, 'temp' => true, 'skin' => $this->config->get('skin'));
	$this->user->reset();
	}


	/**
	* Do server side actions on logout
	*/
	public function logout_actions()
	{
	$config = $this->config->all();
	$storage = $this->get_storage();

	if ($config['logout_purge'] && !empty($config['trash_mbox'])) {
	$storage->clear_folder($config['trash_mbox']);
	}

	if ($config['logout_expunge']) {
	$storage->expunge_folder('INBOX');
	}

	// Try to save unsaved user preferences
	if (!empty($_SESSION['preferences'])) {
	$this->user->save_prefs(unserialize($_SESSION['preferences']));
	}
	}


	/**
	* Generate a unique token to be used in a form request
	*
	* @return string The request token
	*/
	public function get_request_token()
	{
	$sess_id = $_COOKIE[ini_get('session.name')];
	if (!$sess_id) $sess_id = session_id();

	$plugin = $this->plugins->exec_hook('request_token', array(
	'value' => md5('RT' . $this->get_user_id() . $this->config->get('des_key') . $sess_id)));

	return $plugin['value'];
	}


	/**
	* Check if the current request contains a valid token
	*
	* @param int Request method
	* @return boolean True if request token is valid false if not
	*/
	public function check_request($mode = rcube_utils::INPUT_POST)
	{
	$token = rcube_utils::get_input_value('_token', $mode);
	$sess_id = $_COOKIE[ini_get('session.name')];
	return !empty($sess_id) && $token == $this->get_request_token();
	}


	/**
	* Create unique authorization hash
	*
	* @param string Session ID
	* @param int Timestamp
	* @return string The generated auth hash
	*/
	private function get_auth_hash($sess_id, $ts)
	{
	$auth_string = sprintf('rcmailsess%sR%sChk:%s;%s',
	$sess_id,
	$ts,
	$this->config->get('ip_check') ? $_SERVER['REMOTE_ADDR'] : '*...*',
	$_SERVER['HTTP_USER_AGENT']);

	if (function_exists('sha1'))
	return sha1($auth_string);
	else
	return md5($auth_string);
	}


	/**
	* Build a valid URL to this instance of Roundcube
	*
	* @param mixed Either a string with the action or url parameters as key-value pairs
	*
	* @return string Valid application URL
	*/
	public function url($p)
	{
	if (!is_array($p)) {
	if (strpos($p, 'http') === 0)
	return $p;

	$p = array('_action' => @func_get_arg(0));
	}

	$task = $p['_task'] ? $p['_task'] : ($p['task'] ? $p['task'] : $this->task);
	$p['_task'] = $task;
	unset($p['task']);

	$url = './';
	$delm = '?';
	foreach (array_reverse($p) as $key => $val) {
	if ($val !== '' && $val !== null) {
	$par = $key[0] == '_' ? $key : '_'.$key;
	$url .= $delm.urlencode($par).'='.urlencode($val);
	$delm = '&';
	}
	}
	return $url;
	}


	/**
	* Function to be executed in script shutdown
	*/
	public function shutdown()
	{
	parent::shutdown();

	foreach ($this->address_books as $book) {
	if (is_object($book) && is_a($book, 'rcube_addressbook'))
	$book->close();
	}

	// before closing the database connection, write session data
	if ($_SERVER['REMOTE_ADDR'] && is_object($this->session)) {
	session_write_close();
	}

	// write performance stats to logs/console
	if ($this->config->get('devel_mode')) {
	if (function_exists('memory_get_usage'))
	$mem = $this->show_bytes(memory_get_usage());
	if (function_exists('memory_get_peak_usage'))
	$mem .= '/'.$this->show_bytes(memory_get_peak_usage());

	$log = $this->task . ($this->action ? '/'.$this->action : '') . ($mem ? " [$mem]" : '');
	if (defined('RCMAIL_START'))
	self::print_timer(RCMAIL_START, $log);
	else
	self::console($log);
	}
	}

	+
	/**
	* Registers action aliases for current task
	*
	* @param array $map Alias-to-filename hash array
	*/
	public function register_action_map($map)
	{
	if (is_array($map)) {
	foreach ($map as $idx => $val) {
	$this->action_map[$idx] = $val;
	}
	}
	}

	+
	/**
	* Returns current action filename
	*
	* @param array $map Alias-to-filename hash array
	*/
	public function get_action_file()
	{
	if (!empty($this->action_map[$this->action])) {
	return $this->action_map[$this->action];
	}

	return strtr($this->action, '-', '_') . '.inc';
	}

	+
	/**
	* Fixes some user preferences according to namespace handling change.
	* Old Roundcube versions were using folder names with removed namespace prefix.
	* Now we need to add the prefix on servers where personal namespace has prefix.
	*
	* @param rcube_user $user User object
	*/
	private function fix_namespace_settings($user)
	{
	$prefix = $this->storage->get_namespace('prefix');
	$prefix_len = strlen($prefix);

	if (!$prefix_len)
	return;

	$prefs = $this->config->all();
	if (!empty($prefs['namespace_fixed']))
	return;

	// Build namespace prefix regexp
	$ns = $this->storage->get_namespace();
	$regexp = array();

	foreach ($ns as $entry) {
	if (!empty($entry)) {
	foreach ($entry as $item) {
	if (strlen($item[0])) {
	$regexp[] = preg_quote($item[0], '/');
	}
	}
	}
	}
	$regexp = '/^('. implode('\|', $regexp).')/';

	// Fix preferences
	$opts = array('drafts_mbox', 'junk_mbox', 'sent_mbox', 'trash_mbox', 'archive_mbox');
	foreach ($opts as $opt) {
	if ($value = $prefs[$opt]) {
	if ($value != 'INBOX' && !preg_match($regexp, $value)) {
	$prefs[$opt] = $prefix.$value;
	}
	}
	}

	if (!empty($prefs['default_folders'])) {
	foreach ($prefs['default_folders'] as $idx => $name) {
	if ($name != 'INBOX' && !preg_match($regexp, $name)) {
	$prefs['default_folders'][$idx] = $prefix.$name;
	}
	}
	}

	if (!empty($prefs['search_mods'])) {
	$folders = array();
	foreach ($prefs['search_mods'] as $idx => $value) {
	if ($idx != 'INBOX' && $idx != '*' && !preg_match($regexp, $idx)) {
	$idx = $prefix.$idx;
	}
	$folders[$idx] = $value;
	}
	$prefs['search_mods'] = $folders;
	}

	if (!empty($prefs['message_threading'])) {
	$folders = array();
	foreach ($prefs['message_threading'] as $idx => $value) {
	if ($idx != 'INBOX' && !preg_match($regexp, $idx)) {
	$idx = $prefix.$idx;
	}
	$folders[$prefix.$idx] = $value;
	}
	$prefs['message_threading'] = $folders;
	}

	if (!empty($prefs['collapsed_folders'])) {
	$folders = explode('&&', $prefs['collapsed_folders']);
	$count = count($folders);
	$folders_str = '';

	if ($count) {
	$folders[0] = substr($folders[0], 1);
	$folders[$count-1] = substr($folders[$count-1], 0, -1);
	}

	foreach ($folders as $value) {
	if ($value != 'INBOX' && !preg_match($regexp, $value)) {
	$value = $prefix.$value;
	}
	$folders_str .= '&'.$value.'&';
	}
	$prefs['collapsed_folders'] = $folders_str;
	}

	$prefs['namespace_fixed'] = true;

	// save updated preferences and reset imap settings (default folders)
	$user->save_prefs($prefs);
	$this->set_storage_prop();
	}


	/**
	* Overwrite action variable
	*
	* @param string New action value
	*/
	public function overwrite_action($action)
	{
	$this->action = $action;
	$this->output->set_env('action', $action);
	}


	/**
	* Send the given message using the configured method.
	*
	* @param object $message Reference to Mail_MIME object
	* @param string $from Sender address string
	* @param array $mailto Array of recipient address strings
	* @param array $smtp_error SMTP error array (reference)
	* @param string $body_file Location of file with saved message body (reference),
	* used when delay_file_io is enabled
	* @param array $smtp_opts SMTP options (e.g. DSN request)
	*
	* @return boolean Send status.
	*/
	public function deliver_message(&$message, $from, $mailto, &$smtp_error, &$body_file = null, $smtp_opts = null)
	{
	$headers = $message->headers();

	// send thru SMTP server using custom SMTP library
	if ($this->config->get('smtp_server')) {
	// generate list of recipients
	$a_recipients = array($mailto);

	if (strlen($headers['Cc']))
	$a_recipients[] = $headers['Cc'];
	if (strlen($headers['Bcc']))
	$a_recipients[] = $headers['Bcc'];

	// clean Bcc from header for recipients
	$send_headers = $headers;
	unset($send_headers['Bcc']);
	// here too, it because txtHeaders() below use $message->_headers not only $send_headers
	unset($message->_headers['Bcc']);

	$smtp_headers = $message->txtHeaders($send_headers, true);

	if ($message->getParam('delay_file_io')) {
	// use common temp dir
	$temp_dir = $this->config->get('temp_dir');
	$body_file = tempnam($temp_dir, 'rcmMsg');
	if (PEAR::isError($mime_result = $message->saveMessageBody($body_file))) {
	self::raise_error(array('code' => 650, 'type' => 'php',
	'file' => __FILE__, 'line' => __LINE__,
	'message' => "Could not create message: ".$mime_result->getMessage()),
	TRUE, FALSE);
	return false;
	}
	$msg_body = fopen($body_file, 'r');
	}
	else {
	$msg_body = $message->get();
	}

	// send message
	if (!is_object($this->smtp)) {
	$this->smtp_init(true);
	}

	$sent = $this->smtp->send_mail($from, $a_recipients, $smtp_headers, $msg_body, $smtp_opts);
	$smtp_response = $this->smtp->get_response();
	$smtp_error = $this->smtp->get_error();

	// log error
	if (!$sent) {
	self::raise_error(array('code' => 800, 'type' => 'smtp',
	'line' => __LINE__, 'file' => __FILE__,
	'message' => "SMTP error: ".join("\n", $smtp_response)), TRUE, FALSE);
	}
	}
	// send mail using PHP's mail() function
	else {
	// unset some headers because they will be added by the mail() function
	$headers_enc = $message->headers($headers);
	$headers_php = $message->_headers;
	unset($headers_php['To'], $headers_php['Subject']);

	// reset stored headers and overwrite
	$message->_headers = array();
	$header_str = $message->txtHeaders($headers_php);

	// #1485779
	if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
	if (preg_match_all('/<([^@]+@[^>]+)>/', $headers_enc['To'], $m)) {
	$headers_enc['To'] = implode(', ', $m[1]);
	}
	}

	$msg_body = $message->get();

	if (PEAR::isError($msg_body)) {
	self::raise_error(array('code' => 650, 'type' => 'php',
	'file' => __FILE__, 'line' => __LINE__,
	'message' => "Could not create message: ".$msg_body->getMessage()),
	TRUE, FALSE);
	}
	else {
	$delim = $this->config->header_delimiter();
	$to = $headers_enc['To'];
	$subject = $headers_enc['Subject'];
	$header_str = rtrim($header_str);

	if ($delim != "\r\n") {
	$header_str = str_replace("\r\n", $delim, $header_str);
	$msg_body = str_replace("\r\n", $delim, $msg_body);
	$to = str_replace("\r\n", $delim, $to);
	$subject = str_replace("\r\n", $delim, $subject);
	}

	if (ini_get('safe_mode'))
	$sent = mail($to, $subject, $msg_body, $header_str);
	else
	$sent = mail($to, $subject, $msg_body, $header_str, "-f$from");
	}
	}

	if ($sent) {
	$this->plugins->exec_hook('message_sent', array('headers' => $headers, 'body' => $msg_body));

	// remove MDN headers after sending
	unset($headers['Return-Receipt-To'], $headers['Disposition-Notification-To']);

	// get all recipients
	if ($headers['Cc'])
	$mailto .= $headers['Cc'];
	if ($headers['Bcc'])
	$mailto .= $headers['Bcc'];
	if (preg_match_all('/<([^@]+@[^>]+)>/', $mailto, $m))
	$mailto = implode(', ', array_unique($m[1]));

	if ($this->config->get('smtp_log')) {
	self::write_log('sendmail', sprintf("User %s [%s]; Message for %s; %s",
	$this->user->get_username(),
	$_SERVER['REMOTE_ADDR'],
	$mailto,
	!empty($smtp_response) ? join('; ', $smtp_response) : ''));
	}
	}

	if (is_resource($msg_body)) {
	fclose($msg_body);
	}

	$message->_headers = array();
	$message->headers($headers);

	return $sent;
	}


	/**
	* Unique Message-ID generator.
	*
	* @return string Message-ID
	*/
	public function gen_message_id()
	{
	$local_part = md5(uniqid('rcmail'.mt_rand(),true));
	$domain_part = $this->user->get_username('domain');

	// Try to find FQDN, some spamfilters doesn't like 'localhost' (#1486924)
	if (!preg_match('/\.[a-z]+$/i', $domain_part)) {
	foreach (array($_SERVER['HTTP_HOST'], $_SERVER['SERVER_NAME']) as $host) {
	$host = preg_replace('/:[0-9]+$/', '', $host);
	if ($host && preg_match('/\.[a-z]+$/i', $host)) {
	$domain_part = $host;
	}
	}
	}

	return sprintf('<%s@%s>', $local_part, $domain_part);
	}


	/**
	* Returns RFC2822 formatted current date in user's timezone
	*
	* @return string Date
	*/
	public function user_date()
	{
	// get user's timezone
	try {
	$tz = new DateTimeZone($this->config->get('timezone'));
	$date = new DateTime('now', $tz);
	}
	catch (Exception $e) {
	$date = new DateTime();
	}

	return $date->format('r');
	}


	/**
	* Write login data (name, ID, IP address) to the 'userlogins' log file.
	*/
	public function log_login()
	{
	if (!$this->config->get('log_logins')) {
	return;
	}

	$user_name = $this->get_user_name();
	$user_id = $this->get_user_id();

	if (!$user_id) {
	return;
	}

	self::write_log('userlogins',
	sprintf('Successful login for %s (ID: %d) from %s in session %s',
	$user_name, $user_id, rcube_utils::remote_ip(), session_id()));
	}


	/**
	* Create a HTML table based on the given data
	*
	* @param array Named table attributes
	* @param mixed Table row data. Either a two-dimensional array or a valid SQL result set
	* @param array List of cols to show
	* @param string Name of the identifier col
	*
	* @return string HTML table code
	*/
	public function table_output($attrib, $table_data, $a_show_cols, $id_col)
	{
	$table = new html_table(/array('cols' => count($a_show_cols))/);

	// add table header
	if (!$attrib['noheader']) {
	foreach ($a_show_cols as $col) {
	$table->add_header($col, $this->Q($this->gettext($col)));
	}
	}

	if (!is_array($table_data)) {
	$db = $this->get_dbh();
	while ($table_data && ($sql_arr = $db->fetch_assoc($table_data))) {
	$table->add_row(array('id' => 'rcmrow' . rcube_utils::html_identifier($sql_arr[$id_col])));

	// format each col
	foreach ($a_show_cols as $col) {
	$table->add($col, $this->Q($sql_arr[$col]));
	}
	}
	}
	else {
	foreach ($table_data as $row_data) {
	$class = !empty($row_data['class']) ? $row_data['class'] : '';
	$rowid = 'rcmrow' . rcube_utils::html_identifier($row_data[$id_col]);

	$table->add_row(array('id' => $rowid, 'class' => $class));

	// format each col
	foreach ($a_show_cols as $col) {
	$table->add($col, $this->Q(is_array($row_data[$col]) ? $row_data[$col][0] : $row_data[$col]));
	}
	}
	}

	return $table->show($attrib);
	}


	/**
	* Convert the given date to a human readable form
	* This uses the date formatting properties from config
	*
	* @param mixed Date representation (string, timestamp or DateTime object)
	* @param string Date format to use
	* @param bool Enables date convertion according to user timezone
	*
	* @return string Formatted date string
	*/
	public function format_date($date, $format = null, $convert = true)
	{
	if (is_object($date) && is_a($date, 'DateTime')) {
	$timestamp = $date->format('U');
	}
	else {
	if (!empty($date)) {
	$timestamp = rcube_utils::strtotime($date);
	}

	if (empty($timestamp)) {
	return '';
	}

	try {
	$date = new DateTime("@".$timestamp);
	}
	catch (Exception $e) {
	return '';
	}
	}

	if ($convert) {
	try {
	// convert to the right timezone
	$stz = date_default_timezone_get();
	$tz = new DateTimeZone($this->config->get('timezone'));
	$date->setTimezone($tz);
	date_default_timezone_set($tz->getName());

	$timestamp = $date->format('U');
	}
	catch (Exception $e) {
	}
	}

	// define date format depending on current time
	if (!$format) {
	$now = time();
	$now_date = getdate($now);
	$today_limit = mktime(0, 0, 0, $now_date['mon'], $now_date['mday'], $now_date['year']);
	$week_limit = mktime(0, 0, 0, $now_date['mon'], $now_date['mday']-6, $now_date['year']);
	$pretty_date = $this->config->get('prettydate');

	if ($pretty_date && $timestamp > $today_limit && $timestamp < $now) {
	$format = $this->config->get('date_today', $this->config->get('time_format', 'H:i'));
	$today = true;
	}
	else if ($pretty_date && $timestamp > $week_limit && $timestamp < $now) {
	$format = $this->config->get('date_short', 'D H:i');
	}
	else {
	$format = $this->config->get('date_long', 'Y-m-d H:i');
	}
	}

	// strftime() format
	if (preg_match('/%[a-z]+/i', $format)) {
	$format = strftime($format, $timestamp);
	if ($stz) {
	date_default_timezone_set($stz);
	}
	return $today ? ($this->gettext('today') . ' ' . $format) : $format;
	}

	// parse format string manually in order to provide localized weekday and month names
	// an alternative would be to convert the date() format string to fit with strftime()
	$out = '';
	for ($i=0; $i<strlen($format); $i++) {
	if ($format[$i] == "\\") { // skip escape chars
	continue;
	}

	// write char "as-is"
	if ($format[$i] == ' ' \|\| $format[$i-1] == "\\") {
	$out .= $format[$i];
	}
	// weekday (short)
	else if ($format[$i] == 'D') {
	$out .= $this->gettext(strtolower(date('D', $timestamp)));
	}
	// weekday long
	else if ($format[$i] == 'l') {
	$out .= $this->gettext(strtolower(date('l', $timestamp)));
	}
	// month name (short)
	else if ($format[$i] == 'M') {
	$out .= $this->gettext(strtolower(date('M', $timestamp)));
	}
	// month name (long)
	else if ($format[$i] == 'F') {
	$out .= $this->gettext('long'.strtolower(date('M', $timestamp)));
	}
	else if ($format[$i] == 'x') {
	$out .= strftime('%x %X', $timestamp);
	}
	else {
	$out .= date($format[$i], $timestamp);
	}
	}

	if ($today) {
	$label = $this->gettext('today');
	// replcae $ character with "Today" label (#1486120)
	if (strpos($out, '$') !== false) {
	$out = preg_replace('/\$/', $label, $out, 1);
	}
	else {
	$out = $label . ' ' . $out;
	}
	}

	if ($stz) {
	date_default_timezone_set($stz);
	}

	return $out;
	}


	/**
	* Return folders list in HTML
	*
	* @param array $attrib Named parameters
	*
	* @return string HTML code for the gui object
	*/
	public function folder_list($attrib)
	{
	static $a_mailboxes;

	$attrib += array('maxlength' => 100, 'realnames' => false, 'unreadwrap' => ' (%s)');

	$rcmail = rcmail::get_instance();
	$storage = $rcmail->get_storage();

	// add some labels to client
	$rcmail->output->add_label('purgefolderconfirm', 'deletemessagesconfirm');

	$type = $attrib['type'] ? $attrib['type'] : 'ul';
	unset($attrib['type']);

	if ($type == 'ul' && !$attrib['id']) {
	$attrib['id'] = 'rcmboxlist';
	}

	if (empty($attrib['folder_name'])) {
	$attrib['folder_name'] = '*';
	}

	// get current folder
	$mbox_name = $storage->get_folder();

	// build the folders tree
	if (empty($a_mailboxes)) {
	// get mailbox list
	$a_folders = $storage->list_folders_subscribed(
	'', $attrib['folder_name'], $attrib['folder_filter']);
	$delimiter = $storage->get_hierarchy_delimiter();
	$a_mailboxes = array();

	foreach ($a_folders as $folder) {
	$rcmail->build_folder_tree($a_mailboxes, $folder, $delimiter);
	}
	}

	// allow plugins to alter the folder tree or to localize folder names
	$hook = $rcmail->plugins->exec_hook('render_mailboxlist', array(
	'list' => $a_mailboxes,
	'delimiter' => $delimiter,
	'type' => $type,
	'attribs' => $attrib,
	));

	$a_mailboxes = $hook['list'];
	$attrib = $hook['attribs'];

	if ($type == 'select') {
	$attrib['is_escaped'] = true;
	$select = new html_select($attrib);

	// add no-selection option
	if ($attrib['noselection']) {
	$select->add(html::quote($rcmail->gettext($attrib['noselection'])), '');
	}

	$rcmail->render_folder_tree_select($a_mailboxes, $mbox_name, $attrib['maxlength'], $select, $attrib['realnames']);
	$out = $select->show($attrib['default']);
	}
	else {
	$js_mailboxlist = array();
	$out = html::tag('ul', $attrib, $rcmail->render_folder_tree_html($a_mailboxes, $mbox_name, $js_mailboxlist, $attrib), html::$common_attrib);

	$rcmail->output->add_gui_object('mailboxlist', $attrib['id']);
	$rcmail->output->set_env('mailboxes', $js_mailboxlist);
	$rcmail->output->set_env('unreadwrap', $attrib['unreadwrap']);
	$rcmail->output->set_env('collapsed_folders', (string)$rcmail->config->get('collapsed_folders'));
	}

	return $out;
	}


	/**
	* Return folders list as html_select object
	*
	* @param array $p Named parameters
	*
	* @return html_select HTML drop-down object
	*/
	public function folder_selector($p = array())
	{
	$p += array('maxlength' => 100, 'realnames' => false, 'is_escaped' => true);
	$a_mailboxes = array();
	$storage = $this->get_storage();

	if (empty($p['folder_name'])) {
	$p['folder_name'] = '*';
	}

	if ($p['unsubscribed']) {
	$list = $storage->list_folders('', $p['folder_name'], $p['folder_filter'], $p['folder_rights']);
	}
	else {
	$list = $storage->list_folders_subscribed('', $p['folder_name'], $p['folder_filter'], $p['folder_rights']);
	}

	$delimiter = $storage->get_hierarchy_delimiter();

	foreach ($list as $folder) {
	if (empty($p['exceptions']) \|\| !in_array($folder, $p['exceptions'])) {
	$this->build_folder_tree($a_mailboxes, $folder, $delimiter);
	}
	}

	$select = new html_select($p);

	if ($p['noselection']) {
	$select->add(html::quote($p['noselection']), '');
	}

	$this->render_folder_tree_select($a_mailboxes, $mbox, $p['maxlength'], $select, $p['realnames'], 0, $p);

	return $select;
	}


	/**
	* Create a hierarchical array of the mailbox list
	*/
	public function build_folder_tree(&$arrFolders, $folder, $delm = '/', $path = '')
	{
	// Handle namespace prefix
	$prefix = '';
	if (!$path) {
	$n_folder = $folder;
	$folder = $this->storage->mod_folder($folder);

	if ($n_folder != $folder) {
	$prefix = substr($n_folder, 0, -strlen($folder));
	}
	}

	$pos = strpos($folder, $delm);

	if ($pos !== false) {
	$subFolders = substr($folder, $pos+1);
	$currentFolder = substr($folder, 0, $pos);

	// sometimes folder has a delimiter as the last character
	if (!strlen($subFolders)) {
	$virtual = false;
	}
	else if (!isset($arrFolders[$currentFolder])) {
	$virtual = true;
	}
	else {
	$virtual = $arrFolders[$currentFolder]['virtual'];
	}
	}
	else {
	$subFolders = false;
	$currentFolder = $folder;
	$virtual = false;
	}

	$path .= $prefix . $currentFolder;

	if (!isset($arrFolders[$currentFolder])) {
	$arrFolders[$currentFolder] = array(
	'id' => $path,
	'name' => rcube_charset::convert($currentFolder, 'UTF7-IMAP'),
	'virtual' => $virtual,
	'folders' => array());
	}
	else {
	$arrFolders[$currentFolder]['virtual'] = $virtual;
	}

	if (strlen($subFolders)) {
	$this->build_folder_tree($arrFolders[$currentFolder]['folders'], $subFolders, $delm, $path.$delm);
	}
	}


	/**
	* Return html for a structured list <ul> for the mailbox tree
	*/
	public function render_folder_tree_html(&$arrFolders, &$mbox_name, &$jslist, $attrib, $nestLevel = 0)
	{
	$maxlength = intval($attrib['maxlength']);
	$realnames = (bool)$attrib['realnames'];
	$msgcounts = $this->storage->get_cache('messagecount');
	$collapsed = $this->config->get('collapsed_folders');

	$out = '';
	foreach ($arrFolders as $key => $folder) {
	$title = null;
	$folder_class = $this->folder_classname($folder['id']);
	$is_collapsed = strpos($collapsed, '&'.rawurlencode($folder['id']).'&') !== false;
	$unread = $msgcounts ? intval($msgcounts[$folder['id']]['UNSEEN']) : 0;

	if ($folder_class && !$realnames) {
	$foldername = $this->gettext($folder_class);
	}
	else {
	$foldername = $folder['name'];

	// shorten the folder name to a given length
	if ($maxlength && $maxlength > 1) {
	$fname = abbreviate_string($foldername, $maxlength);
	if ($fname != $foldername) {
	$title = $foldername;
	}
	$foldername = $fname;
	}
	}

	// make folder name safe for ids and class names
	$folder_id = rcube_utils::html_identifier($folder['id'], true);
	$classes = array('mailbox');

	// set special class for Sent, Drafts, Trash and Junk
	if ($folder_class) {
	$classes[] = $folder_class;
	}

	if ($folder['id'] == $mbox_name) {
	$classes[] = 'selected';
	}

	if ($folder['virtual']) {
	$classes[] = 'virtual';
	}
	else if ($unread) {
	$classes[] = 'unread';
	}

	$js_name = $this->JQ($folder['id']);
	$html_name = $this->Q($foldername) . ($unread ? html::span('unreadcount', sprintf($attrib['unreadwrap'], $unread)) : '');
	$link_attrib = $folder['virtual'] ? array() : array(
	'href' => $this->url(array('_mbox' => $folder['id'])),
	'onclick' => sprintf("return %s.command('list','%s',this)", rcmail::JS_OBJECT_NAME, $js_name),
	'rel' => $folder['id'],
	'title' => $title,
	);

	$out .= html::tag('li', array(
	'id' => "rcmli".$folder_id,
	'class' => join(' ', $classes),
	'noclose' => true),
	html::a($link_attrib, $html_name) .
	(!empty($folder['folders']) ? html::div(array(
	'class' => ($is_collapsed ? 'collapsed' : 'expanded'),
	'style' => "position:absolute",
	'onclick' => sprintf("%s.command('collapse-folder', '%s')", rcmail::JS_OBJECT_NAME, $js_name)
	), ' ') : ''));

	$jslist[$folder_id] = array(
	'id' => $folder['id'],
	'name' => $foldername,
	'virtual' => $folder['virtual']
	);

	if (!empty($folder['folders'])) {
	$out .= html::tag('ul', array('style' => ($is_collapsed ? "display:none;" : null)),
	$this->render_folder_tree_html($folder['folders'], $mbox_name, $jslist, $attrib, $nestLevel+1));
	}

	$out .= "</li>\n";
	}

	return $out;
	}


	/**
	* Return html for a flat list <select> for the mailbox tree
	*/
	public function render_folder_tree_select(&$arrFolders, &$mbox_name, $maxlength, &$select, $realnames = false, $nestLevel = 0, $opts = array())
	{
	$out = '';

	foreach ($arrFolders as $key => $folder) {
	// skip exceptions (and its subfolders)
	if (!empty($opts['exceptions']) && in_array($folder['id'], $opts['exceptions'])) {
	continue;
	}

	// skip folders in which it isn't possible to create subfolders
	if (!empty($opts['skip_noinferiors'])) {
	$attrs = $this->storage->folder_attributes($folder['id']);
	if ($attrs && in_array('\\Noinferiors', $attrs)) {
	continue;
	}
	}

	if (!$realnames && ($folder_class = $this->folder_classname($folder['id']))) {
	$foldername = $this->gettext($folder_class);
	}
	else {
	$foldername = $folder['name'];

	// shorten the folder name to a given length
	if ($maxlength && $maxlength > 1) {
	$foldername = abbreviate_string($foldername, $maxlength);
	}
	}

	$select->add(str_repeat(' ', $nestLevel*4) . html::quote($foldername), $folder['id']);

	if (!empty($folder['folders'])) {
	$out .= $this->render_folder_tree_select($folder['folders'], $mbox_name, $maxlength,
	$select, $realnames, $nestLevel+1, $opts);
	}
	}

	return $out;
	}


	/**
	* Return internal name for the given folder if it matches the configured special folders
	*/
	public function folder_classname($folder_id)
	{
	if ($folder_id == 'INBOX') {
	return 'inbox';
	}

	// for these mailboxes we have localized labels and css classes
	foreach (array('sent', 'drafts', 'trash', 'junk') as $smbx)
	{
	if ($folder_id === $this->config->get($smbx.'_mbox')) {
	return $smbx;
	}
	}
	}


	/**
	* Try to localize the given IMAP folder name.
	* UTF-7 decode it in case no localized text was found
	*
	* @param string $name Folder name
	*
	* @return string Localized folder name in UTF-8 encoding
	*/
	public function localize_foldername($name)
	{
	if ($folder_class = $this->folder_classname($name)) {
	return $this->gettext($folder_class);
	}
	else {
	return rcube_charset::convert($name, 'UTF7-IMAP');
	}
	}


	public function localize_folderpath($path)
	{
	$protect_folders = $this->config->get('protect_default_folders');
	$default_folders = (array) $this->config->get('default_folders');
	$delimiter = $this->storage->get_hierarchy_delimiter();
	$path = explode($delimiter, $path);
	$result = array();

	foreach ($path as $idx => $dir) {
	$directory = implode($delimiter, array_slice($path, 0, $idx+1));
	if ($protect_folders && in_array($directory, $default_folders)) {
	unset($result);
	$result[] = $this->localize_foldername($directory);
	}
	else {
	$result[] = rcube_charset::convert($dir, 'UTF7-IMAP');
	}
	}

	return implode($delimiter, $result);
	}


	public static function quota_display($attrib)
	{
	$rcmail = rcmail::get_instance();

	if (!$attrib['id']) {
	$attrib['id'] = 'rcmquotadisplay';
	}

	$_SESSION['quota_display'] = !empty($attrib['display']) ? $attrib['display'] : 'text';

	$rcmail->output->add_gui_object('quotadisplay', $attrib['id']);

	$quota = $rcmail->quota_content($attrib);

	$rcmail->output->add_script('rcmail.set_quota('.rcube_output::json_serialize($quota).');', 'docready');

	return html::span($attrib, '');
	}


	public function quota_content($attrib = null)
	{
	$quota = $this->storage->get_quota();
	$quota = $this->plugins->exec_hook('quota', $quota);

	$quota_result = (array) $quota;
	$quota_result['type'] = isset($_SESSION['quota_display']) ? $_SESSION['quota_display'] : '';

	if (!$quota['total'] && $this->config->get('quota_zero_as_unlimited')) {
	$quota_result['title'] = $this->gettext('unlimited');
	$quota_result['percent'] = 0;
	}
	else if ($quota['total']) {
	if (!isset($quota['percent'])) {
	$quota_result['percent'] = min(100, round(($quota['used']/max(1,$quota['total']))*100));
	}

	$title = sprintf('%s / %s (%.0f%%)',
	$this->show_bytes($quota['used'] * 1024), $this->show_bytes($quota['total'] * 1024),
	$quota_result['percent']);

	$quota_result['title'] = $title;

	if ($attrib['width']) {
	$quota_result['width'] = $attrib['width'];
	}
	if ($attrib['height']) {
	$quota_result['height'] = $attrib['height'];
	}
	}
	else {
	$quota_result['title'] = $this->gettext('unknown');
	$quota_result['percent'] = 0;
	}

	return $quota_result;
	}


	/**
	* Outputs error message according to server error/response codes
	*
	* @param string $fallback Fallback message label
	* @param array $fallback_args Fallback message label arguments
	*/
	public function display_server_error($fallback = null, $fallback_args = null)
	{
	$err_code = $this->storage->get_error_code();
	$res_code = $this->storage->get_response_code();

	if ($res_code == rcube_storage::NOPERM) {
	$this->output->show_message('errornoperm', 'error');
	}
	else if ($res_code == rcube_storage::READONLY) {
	$this->output->show_message('errorreadonly', 'error');
	}
	else if ($err_code && ($err_str = $this->storage->get_error_str())) {
	// try to detect access rights problem and display appropriate message
	if (stripos($err_str, 'Permission denied') !== false) {
	$this->output->show_message('errornoperm', 'error');
	}
	else {
	$this->output->show_message('servererrormsg', 'error', array('msg' => $err_str));
	}
	}
	else if ($err_code < 0) {
	$this->output->show_message('storageerror', 'error');
	}
	else if ($fallback) {
	$this->output->show_message($fallback, 'error', $fallback_args);
	}
	}


	/**
	* Output HTML editor scripts
	*
	* @param string $mode Editor mode
	*/
	public function html_editor($mode = '')
	{
	$hook = $this->plugins->exec_hook('html_editor', array('mode' => $mode));

	if ($hook['abort']) {
	return;
	}

	$lang = strtolower($_SESSION['language']);

	// TinyMCE uses two-letter lang codes, with exception of Chinese
	if (strpos($lang, 'zh_') === 0) {
	$lang = str_replace('_', '-', $lang);
	}
	else {
	$lang = substr($lang, 0, 2);
	}

	if (!file_exists(INSTALL_PATH . 'program/js/tiny_mce/langs/'.$lang.'.js')) {
	$lang = 'en';
	}

	$script = json_encode(array(
	'mode' => $mode,
	'lang' => $lang,
	'skin_path' => $this->output->get_skin_path(),
	'spellcheck' => intval($this->config->get('enable_spellcheck')),
	'spelldict' => intval($this->config->get('spellcheck_dictionary'))
	));

	$this->output->include_script('tiny_mce/tiny_mce.js');
	$this->output->include_script('editor.js');
	$this->output->add_script("rcmail_editor_init($script)", 'docready');
	}


	/**
	* Replaces TinyMCE's emoticon images with plain-text representation
	*
	* @param string $html HTML content
	*
	* @return string HTML content
	*/
	public static function replace_emoticons($html)
	{
	$emoticons = array(
	'8-)' => 'smiley-cool',
	':-#' => 'smiley-foot-in-mouth',
	':-*' => 'smiley-kiss',
	':-X' => 'smiley-sealed',
	':-P' => 'smiley-tongue-out',
	':-@' => 'smiley-yell',
	":'(" => 'smiley-cry',
	':-(' => 'smiley-frown',
	':-D' => 'smiley-laughing',
	':-)' => 'smiley-smile',
	':-S' => 'smiley-undecided',
	':-$' => 'smiley-embarassed',
	'O:-)' => 'smiley-innocent',
	':-\|' => 'smiley-money-mouth',
	':-O' => 'smiley-surprised',
	';-)' => 'smiley-wink',
	);

	foreach ($emoticons as $idx => $file) {
	// <img title="Cry" src="http://.../program/js/tiny_mce/plugins/emotions/img/smiley-cry.gif" border="0" alt="Cry" />
	$search[] = '/<img title="[a-z ]+" src="https?:\/\/[a-z0-9_.\/-]+\/tiny_mce\/plugins\/emotions\/img\/'.$file.'.gif"[^>]+\/>/i';
	$replace[] = $idx;
	}

	return preg_replace($search, $replace, $html);
	}


	/**
	* File upload progress handler.
	*/
	public function upload_progress()
	{
	$prefix = ini_get('apc.rfc1867_prefix');
	$params = array(
	'action' => $this->action,
	'name' => rcube_utils::get_input_value('_progress', rcube_utils::INPUT_GET),
	);

	if (function_exists('apc_fetch')) {
	$status = apc_fetch($prefix . $params['name']);

	if (!empty($status)) {
	$status['percent'] = round($status['current']/$status['total']*100);
	$params = array_merge($status, $params);
	}
	}

	if (isset($params['percent']))
	$params['text'] = $this->gettext(array('name' => 'uploadprogress', 'vars' => array(
	'percent' => $params['percent'] . '%',
	'current' => $this->show_bytes($params['current']),
	'total' => $this->show_bytes($params['total'])
	)));

	$this->output->command('upload_progress_update', $params);
	$this->output->send();
	}


	/**
	* Initializes file uploading interface.
	*/
	public function upload_init()
	{
	// Enable upload progress bar
	if (($seconds = $this->config->get('upload_progress')) && ini_get('apc.rfc1867')) {
	if ($field_name = ini_get('apc.rfc1867_name')) {
	$this->output->set_env('upload_progress_name', $field_name);
	$this->output->set_env('upload_progress_time', (int) $seconds);
	}
	}

	// find max filesize value
	$max_filesize = parse_bytes(ini_get('upload_max_filesize'));
	$max_postsize = parse_bytes(ini_get('post_max_size'));
	if ($max_postsize && $max_postsize < $max_filesize) {
	$max_filesize = $max_postsize;
	}

	$this->output->set_env('max_filesize', $max_filesize);
	$max_filesize = self::show_bytes($max_filesize);
	$this->output->set_env('filesizeerror', $this->gettext(array(
	'name' => 'filesizeerror', 'vars' => array('size' => $max_filesize))));

	return $max_filesize;
	}


	/**
	* Initializes client-side autocompletion.
	*/
	public function autocomplete_init()
	{
	static $init;

	if ($init) {
	return;
	}

	$init = 1;

	if (($threads = (int)$this->config->get('autocomplete_threads')) > 0) {
	$book_types = (array) $this->config->get('autocomplete_addressbooks', 'sql');
	if (count($book_types) > 1) {
	$this->output->set_env('autocomplete_threads', $threads);
	$this->output->set_env('autocomplete_sources', $book_types);
	}
	}

	$this->output->set_env('autocomplete_max', (int)$this->config->get('autocomplete_max', 15));
	$this->output->set_env('autocomplete_min_length', $this->config->get('autocomplete_min_length'));
	$this->output->add_label('autocompletechars', 'autocompletemore');
	}


	/**
	* Returns supported font-family specifications
	*
	* @param string $font Font name
	*
	* @param string\|array Font-family specification array or string (if $font is used)
	*/
	public static function font_defs($font = null)
	{
	$fonts = array(
	'Andale Mono' => '"Andale Mono",Times,monospace',
	'Arial' => 'Arial,Helvetica,sans-serif',
	'Arial Black' => '"Arial Black","Avant Garde",sans-serif',
	'Book Antiqua' => '"Book Antiqua",Palatino,serif',
	'Courier New' => '"Courier New",Courier,monospace',
	'Georgia' => 'Georgia,Palatino,serif',
	'Helvetica' => 'Helvetica,Arial,sans-serif',
	'Impact' => 'Impact,Chicago,sans-serif',
	'Tahoma' => 'Tahoma,Arial,Helvetica,sans-serif',
	'Terminal' => 'Terminal,Monaco,monospace',
	'Times New Roman' => '"Times New Roman",Times,serif',
	'Trebuchet MS' => '"Trebuchet MS",Geneva,sans-serif',
	'Verdana' => 'Verdana,Geneva,sans-serif',
	);

	if ($font) {
	return $fonts[$font];
	}

	return $fonts;
	}


	/**
	* Create a human readable string for a number of bytes
	*
	* @param int Number of bytes
	*
	* @return string Byte string
	*/
	public function show_bytes($bytes)
	{
	if ($bytes >= 1073741824) {
	$gb = $bytes/1073741824;
	$str = sprintf($gb>=10 ? "%d " : "%.1f ", $gb) . $this->gettext('GB');
	}
	else if ($bytes >= 1048576) {
	$mb = $bytes/1048576;
	$str = sprintf($mb>=10 ? "%d " : "%.1f ", $mb) . $this->gettext('MB');
	}
	else if ($bytes >= 1024) {
	$str = sprintf("%d ", round($bytes/1024)) . $this->gettext('KB');
	}
	else {
	$str = sprintf('%d ', $bytes) . $this->gettext('B');
	}

	return $str;
	}


	/**
	* Quote a given string.
	* Shortcut function for rcube_utils::rep_specialchars_output()
	*
	* @return string HTML-quoted string
	*/
	public static function Q($str, $mode = 'strict', $newlines = true)
	{
	return rcube_utils::rep_specialchars_output($str, 'html', $mode, $newlines);
	}


	/**
	* Quote a given string for javascript output.
	* Shortcut function for rcube_utils::rep_specialchars_output()
	*
	* @return string JS-quoted string
	*/
	public static function JQ($str)
	{
	return rcube_utils::rep_specialchars_output($str, 'js');
	}


	/**
	* Returns real size (calculated) of the message part
	*
	* @param rcube_message_part Message part
	*
	* @return string Part size (and unit)
	*/
	public function message_part_size($part)
	{
	if (isset($part->d_parameters['size'])) {
	$size = $this->show_bytes((int)$part->d_parameters['size']);
	}
	else {
	$size = $part->size;
	if ($part->encoding == 'base64') {
	$size = $size / 1.33;
	}

	$size = '~' . $this->show_bytes($size);
	}

	return $size;
	}


	/************************************************************************
	******* Deprecated methods (to be removed) *******
	***********************************************************************/

	public static function setcookie($name, $value, $exp = 0)
	{
	rcube_utils::setcookie($name, $value, $exp);
	}

	public function imap_connect()
	{
	return $this->storage_connect();
	}

	public function imap_init()
	{
	return $this->storage_init();
	}

	/**
	* Connect to the mail storage server with stored session data
	*
	* @return bool True on success, False on error
	*/
	public function storage_connect()
	{
	$storage = $this->get_storage();

	if ($_SESSION['storage_host'] && !$storage->is_connected()) {
	$host = $_SESSION['storage_host'];
	$user = $_SESSION['username'];
	$port = $_SESSION['storage_port'];
	$ssl = $_SESSION['storage_ssl'];
	$pass = $this->decrypt($_SESSION['password']);

	if (!$storage->connect($host, $user, $pass, $port, $ssl)) {
	if (is_object($this->output)) {
	$this->output->show_message('storageerror', 'error');
	}
	}
	else {
	$this->set_storage_prop();
	}
	}

	return $storage->is_connected();
	}
	}
	diff --git a/program/js/app.js b/program/js/app.js
	index f372c0f9e..25fddf10c 100644
	--- a/program/js/app.js
	+++ b/program/js/app.js
	@@ -1,6754 +1,6785 @@
	/*
	+-----------------------------------------------------------------------+
	\| Roundcube Webmail Client Script \|
	\| \|
	\| This file is part of the Roundcube Webmail client \|
	\| Copyright (C) 2005-2012, The Roundcube Dev Team \|
	\| Copyright (C) 2011, Kolab Systems AG \|
	\| \|
	\| Licensed under the GNU General Public License version 3 or \|
	\| any later version with exceptions for skins & plugins. \|
	\| See the README file for a full license statement. \|
	\| \|
	+-----------------------------------------------------------------------+
	\| Authors: Thomas Bruederli <roundcube@gmail.com> \|
	\| Aleksander 'A.L.E.C' Machniak <alec@alec.pl> \|
	\| Charles McNulty <charles@charlesmcnulty.com> \|
	+-----------------------------------------------------------------------+
	\| Requires: jquery.js, common.js, list.js \|
	+-----------------------------------------------------------------------+
	*/

	function rcube_webmail()
	{
	this.env = { recipients_separator:',', recipients_delimiter:', ' };
	this.labels = {};
	this.buttons = {};
	this.buttons_sel = {};
	this.gui_objects = {};
	this.gui_containers = {};
	this.commands = {};
	this.command_handlers = {};
	this.onloads = [];
	this.messages = {};
	this.group2expand = {};

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

	// webmail client settings
	this.dblclick_time = 500;
	this.message_time = 4000;

	this.identifier_expr = new RegExp('[^0-9a-z\-_]', 'gi');

	// default environment vars
	this.env.keep_alive = 60; // seconds
	this.env.request_timeout = 180; // seconds
	this.env.draft_autosave = 0; // seconds
	this.env.comm_path = './';
	this.env.blankpage = 'program/resources/blank.gif';

	// 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); }
	});

	$(window).bind('beforeunload', function() { rcmail.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)
	{
	if (!this.buttons[command])
	this.buttons[command] = [];

	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;

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

	if (this.loaded)
	init_button(command, button_prop);
	};

	// 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, p = this;
	this.task = this.env.task;

	// check browser
	if (!bw.dom \|\| !bw.xmlhttp_test() \|\| (bw.mz && bw.vendver < 1.9)) {
	this.goto_url('error', '_code=0x199');
	return;
	}

	// 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]);

	// clickjacking protection
	if (this.env.x_frame_options) {
	try {
	// bust frame if not allowed
	if (this.env.x_frame_options == 'deny' && top.location.href != self.location.href)
	top.location.href = self.location.href;
	else if (top.location.hostname != self.location.hostname)
	throw 1;
	} catch (e) {
	// possible clickjacking attack: disable all form elements
	$('form').each(function(){ ref.lock_form(this, true); });
	this.display_message("Blocked: possible clickjacking attack!", 'error');
	return;
	}
	}

	// init registered buttons
	this.init_buttons();

	// tell parent window that this frame is loaded
	if (this.is_framed()) {
	parent.rcmail.set_busy(false, null, parent.rcmail.env.frame_lock);
	parent.rcmail.env.frame_lock = null;
	}

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

	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', true);

	if (this.gui_objects.messagelist) {

	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.row_init = function(o){ p.init_message_row(o); };
	this.message_list.addEventListener('dblclick', function(o){ p.msglist_dbl_click(o); });
	this.message_list.addEventListener('click', function(o){ p.msglist_click(o); });
	this.message_list.addEventListener('keypress', function(o){ p.msglist_keypress(o); });
	this.message_list.addEventListener('select', function(o){ p.msglist_select(o); });
	this.message_list.addEventListener('dragstart', function(o){ p.drag_start(o); });
	this.message_list.addEventListener('dragmove', function(e){ p.drag_move(e); });
	this.message_list.addEventListener('dragend', function(e){ p.drag_end(e); });
	this.message_list.addEventListener('expandcollapse', function(e){ p.msglist_expand(e); });
	this.message_list.addEventListener('column_replace', function(e){ p.msglist_set_coltypes(e); });

	document.onmouseup = function(e){ return p.doc_mouse_up(e); };
	this.gui_objects.messagelist.parentNode.onmousedown = function(e){ return p.click_on_list(e); };

	this.message_list.init();
	this.enable_command('toggle_status', 'toggle_flag', 'menu-open', 'menu-save', 'sort', true);

	// load messages
	this.command('list');
	}

	if (this.gui_objects.qsearchbox) {
	if (this.env.search_text != null) {
	this.gui_objects.qsearchbox.value = this.env.search_text;
	}
	$(this.gui_objects.qsearchbox).focusin(function() { rcmail.message_list.blur(); });
	}

	this.set_button_titles();

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

	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.blockedobjects) {
	if (this.gui_objects.remoteobjectsmsg)
	this.gui_objects.remoteobjectsmsg.style.display = 'block';
	this.enable_command('load-images', 'always-load', 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);
	}
	}
	else if (this.env.action == 'compose') {
	this.env.compose_commands = ['send-attachment', 'remove-attachment', 'send', 'cancel', 'toggle-editor', 'list-adresses', 'extwin'];

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

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

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

	if (this.env.spellcheck) {
	this.env.spellcheck.spelling_state_observer = function(s) { ref.spellcheck_state(); };
	this.env.compose_commands.push('spellcheck')
	this.enable_command('spellcheck', true);
	}

	document.onmouseup = function(e){ return p.doc_mouse_up(e); };

	// init message compose form
	this.init_messageform();
	}
	// show printing dialog
	else if (this.env.action == 'print' && this.env.uid)
	if (bw.safari)
	setTimeout('window.print()', 10);
	else
	window.print();

	// 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');
	}

	// 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:false });
	this.contact_list.addEventListener('select', function(o){ ref.compose_recipient_select(o); });
	this.contact_list.addEventListener('dblclick', function(o){ ref.compose_add_recipient('to'); });
	this.contact_list.init();
	}

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

	// ask user to send MDN
	if (this.env.mdn_request && this.env.uid) {
	var postact = 'sendmdn',
	postdata = {_uid: this.env.uid, _mbox: this.env.mailbox};
	if (!confirm(this.get_label('mdnrequest'))) {
	postdata._flag = 'mdnsent';
	postact = 'mark';
	}
	this.http_post(postact, postdata);
	}

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

	break;

	case 'addressbook':
	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', 'listsearch', '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.row_init = function(row){ p.triggerEvent('insertrow', { cid:row.uid, row:row }); };
	this.contact_list.addEventListener('keypress', function(o){ p.contactlist_keypress(o); });
	this.contact_list.addEventListener('select', function(o){ p.contactlist_select(o); });
	this.contact_list.addEventListener('dragstart', function(o){ p.drag_start(o); });
	this.contact_list.addEventListener('dragmove', function(e){ p.drag_move(e); });
	this.contact_list.addEventListener('dragend', function(e){ p.drag_end(e); });
	this.contact_list.init();

	if (this.env.cid)
	this.contact_list.highlight_row(this.env.cid);

	this.gui_objects.contactslist.parentNode.onmousedown = function(e){ return p.click_on_list(e); };
	document.onmouseup = function(e){ return p.doc_mouse_up(e); };
	if (this.gui_objects.qsearchbox) {
	$(this.gui_objects.qsearchbox).focusin(function() { rcmail.contact_list.blur(); });
	}

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

	this.set_page_buttons();

	if (this.env.cid) {
	this.enable_command('show', 'edit', 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.init_contact_form();
	}

	if (this.gui_objects.qsearchbox) {
	this.enable_command('search', 'reset-search', 'moveto', true);
	}

	break;

	case 'settings':
	this.enable_command('preferences', 'identities', 'save', 'folders', 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);

	if (this.env.action == 'add-identity')
	$("input[type='text']").first().select();
	}
	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.messagecount = this.env.messagecount;
	parent.rcmail.enable_command('purge', this.env.messagecount);
	$("input[type='text']").first().select();
	}

	if (this.gui_objects.identitieslist) {
	this.identity_list = new rcube_list_widget(this.gui_objects.identitieslist, {multiselect:false, draggable:false, keyboard:false});
	this.identity_list.addEventListener('select', function(o){ p.identity_select(o); });
	this.identity_list.init();
	this.identity_list.focus();

	if (this.env.iid)
	this.identity_list.highlight_row(this.env.iid);
	}
	else if (this.gui_objects.sectionslist) {
	this.sections_list = new rcube_list_widget(this.gui_objects.sectionslist, {multiselect:false, draggable:false, keyboard:false});
	this.sections_list.addEventListener('select', function(o){ p.section_select(o); });
	this.sections_list.init();
	this.sections_list.focus();
	}
	else if (this.gui_objects.subscriptionlist)
	this.init_subscription_list();

	break;

	case 'login':
	var input_user = $('#rcmloginuser');
	input_user.bind('keyup', function(e){ return rcmail.login_user_keyup(e); });

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

	// detect client timezone
	if (window.jstz && !bw.ie6) {
	var timezone = jstz.determine();
	if (timezone.name())
	$('#rcmlogintz').val(timezone.name());
	}
	else {
	$('#rcmlogintz').val(new Date().getStdTimezoneOffset() / -60);
	}

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

	this.enable_command('login', true);
	break;

	default:
	break;
	}

	// 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;

	// show message
	if (this.pending_message)
	this.display_message(this.pending_message[0], this.pending_message[1], this.pending_message[2]);

	// map implicit containers
	if (this.gui_objects.folderlist)
	this.gui_containers.foldertray = $(this.gui_objects.folderlist);

	// activate html5 file drop feature (if browser supports it and if configured)
	if (this.gui_objects.filedrop && this.env.filedrop && ((window.XMLHttpRequest && XMLHttpRequest.prototype && XMLHttpRequest.prototype.sendAsBinary) \|\| window.FormData)) {
	$(document.body).bind('dragover dragleave drop', function(e){ return ref.document_drag_hover(e, e.type == 'dragover'); });
	$(this.gui_objects.filedrop).addClass('droptarget')
	.bind('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);
	}

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

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

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

	this.log = function(msg)
	{
	if (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)
	{
	var ret, uid, cid, url, flag;

	if (obj && obj.blur)
	obj.blur();

	if (this.busy)
	return false;

	// command not supported or allowed
	if (!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' && $.inArray(command, this.env.compose_commands)<0) {
	if (this.cmp_hash != this.compose_field_hash() && !confirm(this.get_label('notsentwarning')))
	return false;
	}

	// process external commands
	if (typeof this.command_handlers[command] === 'function') {
	ret = this.command_handlers[command](props, obj);
	return ret !== undefined ? ret : (obj ? false : true);
	}
	else if (typeof this.command_handlers[command] === 'string') {
	ret = window[this.command_handlers[command]](props, obj);
	return ret !== undefined ? ret : (obj ? false : true);
	}

	// trigger plugin hooks
	this.triggerEvent('actionbefore', {props:props, action:command});
	ret = this.triggerEvent('before'+command, props);
	if (ret !== undefined) {
	// abort if one of the handlers returned false
	if (ret === false)
	return false;
	else
	props = ret;
	}

	ret = undefined;

	// process internal command
	switch (command) {

	case 'login':
	if (this.gui_objects.loginform)
	this.gui_objects.loginform.submit();
	break;

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

	case 'about':
	location.href = '?_task=settings&_action=about';
	break;

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

	case 'extwin':
	if (this.env.action == 'compose') {
	var prevstate = this.env.compose_extwin;
	$("input[name='_action']", this.gui_objects.messageform).val('compose');
	this.gui_objects.messageform.action = this.url('mail/compose', { _id: this.env.compose_id, _extwin: 1 });
	this.gui_objects.messageform.target = this.open_window('', 1150, 900);
	this.gui_objects.messageform.submit();
	}
	else {
	this.open_window(this.env.permaurl, 1000, 1200);
	}
	break;

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

	case 'open':
	if (uid = this.get_single_uid()) {
	obj.href = '?_task='+this.env.task+'&_action=show&_mbox='+urlencode(this.env.mailbox)+'&_uid='+uid;
	return true;
	}
	break;

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

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

	case 'purge':
	case 'empty-mailbox':
	if (this.env.messagecount)
	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)) {
	if (this.env.mailbox == this.env.drafts_mailbox)
	this.open_compose_step({ _draft_uid: uid, _mbox: this.env.mailbox });
	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');
	}
	break;

	case 'add':
	if (this.task == 'addressbook')
	this.load_contact(0, 'add');
	else if (this.task == 'settings') {
	this.identity_list.clear_selection();
	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 == 'settings' && props)
	this.load_identity(props, 'edit-identity');
	else if (this.task == 'mail' && (cid = this.get_single_uid())) {
	url = { _mbox: this.env.mailbox };
	url[this.env.mailbox == this.env.drafts_mailbox && props != 'new' ? '_draft_uid' : '_uid'] = cid;
	this.open_compose_step(url);
	}
	break;

	case 'save':
	var input, form = this.gui_objects.editform;
	if (form) {
	// adv. search
	if (this.env.action == 'search') {
	}
	// user prefs
	else if ((input = $("input[name='_pagesize']", form)) && input.length && isNaN(parseInt(input.val()))) {
	alert(this.get_label('nopagesizewarning'));
	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 = $("input[name='_email']", form)) && input.length && !rcube_check_email(input.val())
	) {
	alert(this.get_label('noemailwarning'));
	input.focus();
	break;
	}

	// clear empty input fields
	$('input.placeholder').each(function(){ if (this.value == this._placeholder) this.value = ''; });
	}

	// 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();
	// user settings task
	else if (this.task == 'settings')
	this.delete_identity();
	break;

	// mail task commands
	case 'move':
	case 'moveto':
	if (this.task == 'mail')
	this.move_messages(props);
	else if (this.task == 'addressbook' && this.drag_active)
	this.copy_contact(null, props);
	break;

	case 'copy':
	if (this.task == 'mail')
	this.copy_messages(props);
	break;

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

	case 'toggle_status':
	if (props && !props._row)
	break;

	flag = 'read';

	if (props._row.uid) {
	uid = props._row.uid;

	// toggle read/unread
	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 'toggle_flag':
	if (props && !props._row)
	break;

	flag = 'flagged';

	if (props._row.uid) {
	uid = props._row.uid;
	// toggle flagged/unflagged
	if (this.message_list.rows[uid].flagged)
	flag = 'unflagged';
	}
	this.mark_message(flag, uid);
	break;

	case 'always-load':
	if (this.env.uid && this.env.sender) {
	this.add_contact(this.env.sender);
	setTimeout(function(){ ref.command('load-images'); }, 300);
	break;
	}

	case 'load-images':
	if (this.env.uid)
	this.show_message(this.env.uid, true, this.env.action=='preview');
	break;

	case 'load-attachment':
	var qstring = '_mbox='+urlencode(this.env.mailbox)+'&_uid='+this.env.uid+'&_part='+props.part;

	// open attachment in frame if it's of a supported mimetype
	if (this.env.uid && props.mimetype && this.env.mimetypes && $.inArray(props.mimetype, this.env.mimetypes)>=0) {
	if (props.mimetype == 'text/html')
	qstring += '&_safe=1';
	this.attachment_win = window.open(this.env.comm_path+'&_action=get&'+qstring+'&_frame=1', 'rcubemailattachment');
	if (this.attachment_win) {
	setTimeout(function(){ ref.attachment_win.focus(); }, 10);
	break;
	}
	}

	this.goto_url('get', qstring+'&_download=1', false);
	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
	if (props == 'invert')
	this.message_list.invert_selection();
	else
	this.message_list.select_all(props == 'page' ? '' : props);
	this.dummy_select = null;
	break;

	case 'select-none':
	this.select_all_mode = false;
	this.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 'checkmail':
	- this.check_for_recent(true);
	- break;
	-
	case 'compose':
	url = {};

	if (this.task == 'mail') {
	url._mbox = this.env.mailbox;
	if (props)
	url._to = props;
	// also send search request so we can go back to search result after message is sent
	if (this.env.search_request)
	url._search = this.env.search_request;
	}
	// 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 {
	// use contact_id passed as command parameter
	var n, len, a_cids = [];
	if (props)
	a_cids.push(props);
	// get selected contacts
	else if (this.contact_list) {
	var selection = this.contact_list.get_selection();
	for (n=0, len=selection.length; n<len; n++)
	a_cids.push(selection[n]);
	}

	if (a_cids.length)
	this.http_post('mailto', { _cid: a_cids.join(','), _source: this.env.source }, true);
	else if (this.env.group)
	this.http_post('mailto', { _gid: this.env.group, _source: this.env.source }, true);

	break;
	}
	}
	else if (props)
	url._to = props;

	this.open_compose_step(url);
	break;

	case 'spellcheck':
	if (this.spellcheck_state()) {
	this.stop_spellchecking();
	}
	else {
	if (window.tinyMCE && tinyMCE.get(this.env.composebody)) {
	tinyMCE.execCommand('mceSpellCheck', true);
	}
	else if (this.env.spellcheck && this.env.spellcheck.spellCheck) {
	this.env.spellcheck.spellCheck();
	}
	}
	this.spellcheck_state();
	break;

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

	// compose form did not change
	if (this.cmp_hash == this.compose_field_hash()) {
	this.auto_save_start();
	break;
	}

	this.submit_messageform(true);
	break;

	case 'send':
	if (!props.nocheck && !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);

	this.upload_file(props \|\| this.gui_objects.uploadform);
	break;

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

	case 'list-adresses':
	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.env.mailbox};
	if (command == 'reply-all')
	// do reply-list, when list is detected and popup menu wasn't used
	url._all = (!props && 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':
	if (uid = this.get_single_uid()) {
	url = { _forward_uid: uid, _mbox: this.env.mailbox };
	if (command == 'forward-attachment' \|\| (!props && this.env.forward_attachment))
	url._attachment = 1;
	this.open_compose_step(url);
	}
	break;

	case 'print':
	if (uid = this.get_single_uid()) {
	ref.printwin = window.open(this.env.comm_path+'&_action=print&_uid='+uid+'&_mbox='+urlencode(this.env.mailbox)+(this.env.safemode ? '&_safe=1' : ''));
	if (this.printwin) {
	setTimeout(function(){ ref.printwin.focus(); }, 20);
	if (this.env.action != 'show')
	this.mark_message('read', uid);
	}
	}
	break;

	case 'viewsource':
	if (uid = this.get_single_uid()) {
	ref.sourcewin = window.open(this.env.comm_path+'&_action=viewsource&_uid='+uid+'&_mbox='+urlencode(this.env.mailbox));
	if (this.sourcewin)
	setTimeout(function(){ ref.sourcewin.focus(); }, 20);
	}
	break;

	case 'download':
	if (uid = this.get_single_uid())
	this.goto_url('viewsource', { _uid: uid, _mbox: this.env.mailbox, _save: 1 });
	break;

	// quicksearch
	case 'search':
	if (!props && this.gui_objects.qsearchbox)
	props = this.gui_objects.qsearchbox.value;
	if (props) {
	this.qsearch(props);
	break;
	}

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

	this.reset_qsearch();
	this.select_all_mode = false;

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

	case 'import':
	if (this.env.action == 'import' && this.gui_objects.importform) {
	var file = document.getElementById('rcmimportfile');
	if (file && !file.value) {
	alert(this.get_label('selectimportfile'));
	break;
	}
	this.gui_objects.importform.submit();
	this.set_busy(true, 'importwait');
	this.lock_form(this.gui_objects.importform, true);
	}
	else
	this.goto_url('import', (this.env.source ? '_target='+urlencode(this.env.source)+'&' : ''));
	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 });
	}
	break;

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

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

	// user settings commands
	case 'preferences':
	case 'identities':
	case 'folders':
	this.goto_url('settings/' + command);
	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') {
	ret = this[func](props, obj);
	}
	break;
	}

	if (this.triggerEvent('after'+command, props) === false)
	ret = false;
	this.triggerEvent('actionafter', {props:props, action:command});

	return ret === false ? false : obj ? false : true;
	};

	// 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'));
	}
	// push array elements into commands array
	else {
	for (i in cmd)
	args.push(cmd[i]);
	}
	}
	};

	// 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;
	//document.body.style.cursor = a ? 'wait' : 'default';

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

	var url = this.get_task_url(task);
	if (task=='mail')
	url += '&_mbox=INBOX';

	this.redirect(url);
	};

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

	return url.replace(/_task=[a-z]+/, '_task='+task);
	};

	this.reload = function(delay)
	{
	if (this.is_framed())
	parent.rcmail.reload(delay);
	else if (delay)
	setTimeout(function(){ rcmail.reload(); }, delay);
	else if (window.location)
	location.href = this.env.comm_path + (this.env.action ? '&_action='+this.env.action : '');
	};

	// Add variable to GET string, replace old value if exists
	this.add_url = function(url, name, value)
	{
	value = urlencode(value);

	if (/(\?.*)$/.test(url)) {
	var 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);
	}

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

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

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

	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.message_dragmenu;

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

	return false;
	};

	this.drag_menu_action = function(action)
	{
	var menu = this.gui_objects.message_dragmenu;
	if (menu) {
	$(menu).hide();
	}
	this.command(action, this.env.drag_target);
	this.env.drag_target = null;
	};

	this.drag_start = function(list)
	{
	var model = this.task == 'mail' ? this.env.mailboxes : this.env.contactfolders;

	this.drag_active = true;

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

	// save folderlist and folders location/sizes for droptarget calculation in drag_move()
	if (this.gui_objects.folderlist && model) {
	this.initialBodyScrollTop = bw.ie ? 0 : window.pageYOffset;
	this.initialListScrollTop = this.gui_objects.folderlist.parentNode.scrollTop;

	var k, li, height,
	list = $(this.gui_objects.folderlist);
	pos = list.offset();

	this.env.folderlist_coords = { x1:pos.left, y1:pos.top, x2:pos.left + list.width(), y2:pos.top + list.height() };

	this.env.folder_coords = [];
	for (k in model) {
	if (li = this.get_folder_li(k)) {
	// only visible folders
	if (height = li.firstChild.offsetHeight) {
	pos = $(li.firstChild).offset();
	this.env.folder_coords[k] = { x1:pos.left, y1:pos.top,
	x2:pos.left + li.firstChild.offsetWidth, y2:pos.top + height, on:0 };
	}
	}
	}
	}
	};

	this.drag_end = function(e)
	{
	this.drag_active = false;
	this.env.last_folder_target = null;

	if (this.folder_auto_timer) {
	clearTimeout(this.folder_auto_timer);
	this.folder_auto_timer = null;
	this.folder_auto_expand = null;
	}

	// over the folders
	if (this.gui_objects.folderlist && this.env.folder_coords) {
	for (var k in this.env.folder_coords) {
	if (this.env.folder_coords[k].on)
	$(this.get_folder_li(k)).removeClass('droptarget');
	}
	}
	};

	this.drag_move = function(e)
	{
	if (this.gui_objects.folderlist && this.env.folder_coords) {
	var k, li, div, check, oldclass,
	layerclass = 'draglayernormal',
	mouse = rcube_event.get_mouse_pos(e),
	pos = this.env.folderlist_coords,
	// offsets to compensate for scrolling while dragging a message
	boffset = bw.ie ? -document.documentElement.scrollTop : this.initialBodyScrollTop,
	moffset = this.initialListScrollTop-this.gui_objects.folderlist.parentNode.scrollTop;

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

	mouse.y += -moffset-boffset;

	// if mouse pointer is outside of folderlist
	if (mouse.x < pos.x1 \|\| mouse.x >= pos.x2 \|\| mouse.y < pos.y1 \|\| mouse.y >= pos.y2) {
	if (this.env.last_folder_target) {
	$(this.get_folder_li(this.env.last_folder_target)).removeClass('droptarget');
	this.env.folder_coords[this.env.last_folder_target].on = 0;
	this.env.last_folder_target = null;
	}
	if (layerclass != oldclass && this.contact_list && this.contact_list.draglayer)
	this.contact_list.draglayer.attr('class', layerclass);
	return;
	}

	// over the folders
	for (k in this.env.folder_coords) {
	pos = this.env.folder_coords[k];
	if (mouse.x >= pos.x1 && mouse.x < pos.x2 && mouse.y >= pos.y1 && mouse.y < pos.y2){
	if ((check = this.check_droptarget(k))) {
	li = this.get_folder_li(k);
	div = $(li.getElementsByTagName('div')[0]);

	// if the folder is collapsed, expand it after 1sec and restart the drag & drop process.
	if (div.hasClass('collapsed')) {
	if (this.folder_auto_timer)
	clearTimeout(this.folder_auto_timer);

	this.folder_auto_expand = this.env.mailboxes[k].id;
	this.folder_auto_timer = setTimeout(function() {
	rcmail.command('collapse-folder', rcmail.folder_auto_expand);
	rcmail.drag_start(null);
	}, 1000);
	} else if (this.folder_auto_timer) {
	clearTimeout(this.folder_auto_timer);
	this.folder_auto_timer = null;
	this.folder_auto_expand = null;
	}

	$(li).addClass('droptarget');
	this.env.folder_coords[k].on = 1;
	this.env.last_folder_target = k;
	layerclass = 'draglayer' + (check > 1 ? 'copy' : 'normal');
	} else { // Clear target, otherwise drag end will trigger move into last valid droptarget
	this.env.last_folder_target = null;
	}
	}
	else if (pos.on) {
	$(this.get_folder_li(k)).removeClass('droptarget');
	this.env.folder_coords[k].on = 0;
	}
	}

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

	this.collapse_folder = function(name)
	{
	var li = this.get_folder_li(name, '', true),
	div = $('div:first', li),
	ul = $('ul:first', li);

	if (div.hasClass('collapsed')) {
	ul.show();
	div.removeClass('collapsed').addClass('expanded');
	var reg = new RegExp('&'+urlencode(name)+'&');
	this.env.collapsed_folders = this.env.collapsed_folders.replace(reg, '');
	}
	else if (div.hasClass('expanded')) {
	ul.hide();
	div.removeClass('expanded').addClass('collapsed');
	this.env.collapsed_folders = this.env.collapsed_folders+'&'+urlencode(name)+'&';

	// select the folder if one of its childs is currently selected
	// don't select if it's virtual (#1488346)
	if (this.env.mailbox.indexOf(name + this.env.delimiter) == 0 && !$(li).hasClass('virtual'))
	this.command('list', name);
	}
	else
	return;

	// Work around a bug in IE6 and IE7, see #1485309
	if (bw.ie6 \|\| bw.ie7) {
	var siblings = li.nextSibling ? li.nextSibling.getElementsByTagName('ul') : null;
	if (siblings && siblings.length && (li = siblings[0]) && li.style && li.style.display != 'none') {
	li.style.display = 'none';
	li.style.display = '';
	}
	}

	this.command('save-pref', { name: 'collapsed_folders', value: this.env.collapsed_folders });
	this.set_unread_count_display(name, false);
	};

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

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

	if (list = this.message_list)
	model = this.env.mailboxes;
	else if (list = this.contact_list)
	model = this.env.contactfolders;
	else if (this.ksearch_value)
	this.ksearch_blur();

	if (list && !rcube_mouse_is_over(e, list.list.parentNode))
	list.blur();

	// handle mouse release when dragging
	if (this.drag_active && model && this.env.last_folder_target) {
	var target = model[this.env.last_folder_target];

	$(this.get_folder_li(this.env.last_folder_target)).removeClass('droptarget');
	this.env.last_folder_target = null;
	list.draglayer.hide();

	if (!this.drag_menu(e, target))
	this.command('moveto', target);
	}

	// 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 = {};
	}
	};

	this.click_on_list = function(e)
	{
	if (this.gui_objects.qsearchbox)
	this.gui_objects.qsearchbox.blur();

	if (this.message_list)
	this.message_list.focus();
	else if (this.contact_list)
	this.contact_list.focus();

	return true;
	};

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

	var selected = list.get_single_selection() != null;

	this.enable_command(this.env.message_commands, selected);
	if (selected) {
	// Hide certain command buttons when Drafts folder is selected
	if (this.env.mailbox == this.env.drafts_mailbox)
	this.enable_command('reply', 'reply-all', 'reply-list', 'forward', 'forward-attachment', false);
	// Disable reply-list when List-Post header is not set
	else {
	var msg = this.env.messages[list.get_single_selection()];
	if (!msg.ml)
	this.enable_command('reply-list', false);
	}
	}
	// Multi-message commands
	this.enable_command('delete', 'moveto', 'copy', 'mark', (list.selection.length > 0 ? true : false));

	// reset all-pages-selection
	if (selected \|\| (list.selection.length && list.selection.length != 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)
	this.preview_timer = setTimeout(function(){ ref.msglist_get_preview(); }, 200);
	else if (this.env.contentframe)
	this.show_contentframe(false);
	};

	// This allow as to re-select selected message and display it in preview frame
	this.msglist_click = function(list)
	{
	if (list.multi_selecting \|\| !this.env.contentframe)
	return;

	if (list.get_single_selection())
	return;

	var win = this.get_frame_window(this.env.contentframe);

	if (win && win.location.href.indexOf(this.env.blankpage)>=0) {
	if (this.preview_timer)
	clearTimeout(this.preview_timer);
	if (this.preview_read_timer)
	clearTimeout(this.preview_read_timer);
	this.preview_timer = setTimeout(function(){ ref.msglist_get_preview(); }, 200);
	}
	};

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

	if (this.preview_read_timer)
	clearTimeout(this.preview_read_timer);

	var uid = list.get_single_selection();
	if (uid && this.env.mailbox == this.env.drafts_mailbox)
	this.open_compose_step({ _draft_uid: uid, _mbox: this.env.mailbox });
	else if (uid)
	this.show_message(uid, false, false);
	};

	this.msglist_keypress = function(list)
	{
	if (list.modkey == CONTROL_KEY)
	return;

	if (list.key_pressed == list.ENTER_KEY)
	this.command('show');
	else if (list.key_pressed == list.DELETE_KEY \|\| list.key_pressed == list.BACKSPACE_KEY)
	this.command('delete');
	else if (list.key_pressed == 33)
	this.command('previouspage');
	else if (list.key_pressed == 34)
	this.command('nextpage');
	};

	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.list.tHead.rows[0].cells;

	this.env.coltypes = [];

	for (i=0; i<cols.length; i++)
	if (cols[i].id && cols[i].id.match(/^rcm/)) {
	name = cols[i].id.replace(/^rcm/, '');
	this.env.coltypes.push(name);
	}

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

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

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

	this.check_droptarget = function(id)
	{
	var allow = false, copy = false;

	if (this.task == 'mail')
	allow = (this.env.mailboxes[id] && this.env.mailboxes[id].id != this.env.mailbox && !this.env.mailboxes[id].virtual);
	else if (this.task == 'settings')
	allow = (id != this.env.mailbox);
	else if (this.task == 'addressbook') {
	if (id != this.env.source && this.env.contactfolders[id]) {
	if (this.env.contactfolders[id].type == 'group') {
	var target_abook = this.env.contactfolders[id].source;
	allow = this.env.contactfolders[id].id != this.env.group && !this.env.contactfolders[target_abook].readonly;
	copy = target_abook != this.env.source;
	}
	else {
	allow = !this.env.contactfolders[id].readonly;
	copy = true;
	}
	}
	}

	return allow ? (copy ? 2 : 1) : 0;
	};

	this.open_window = function(url, width, height)
	{
	var w = Math.min(width, screen.width - 10),
	h = Math.min(height, screen.height - 100),
	l = (screen.width - w) / 2 + (screen.left \|\| 0),
	t = Math.max(0, (screen.height - h) / 2 + (screen.top \|\| 0) - 20);

	var wname = 'rcmextwin' + new Date().getTime(),
	extwin = window.open(url + '&_extwin=1', wname, 'width='+w+',height='+h+',top='+t+',left='+l+',resizable=yes,toolbar=no,status=no');
	extwin.moveTo(l,t);

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

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

	return wname;
	};


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

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

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

	// set eventhandler to status icon
	if (row.icon = document.getElementById(status_icon)) {
	row.icon._row = row.obj;
	row.icon.onmousedown = function(e) { self.command('toggle_status', this); rcube_event.cancel(e); };
	}

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

	// set eventhandler to flag icon, if icon found
	if (this.env.flagged_col != null && (row.flagicon = document.getElementById('flagicn'+row.uid))) {
	row.flagicon._row = row.obj;
	row.flagicon.onmousedown = function(e) { self.command('toggle_flag', this); rcube_event.cancel(e); };
	}

	if (!row.depth && row.has_children && (expando = document.getElementById('rcmexpando'+row.uid))) {
	row.expando = expando;
	expando.onmousedown = function(e) { return self.expand_message_row(e, uid); };
	}

	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;

	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?flags.unread_children:0,
	parent_uid: flags.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,
	// flags from plugins
	flags: flags.extra_flags
	});

	var c, n, col, html, css_class,
	tree = '', expando = '',
	list = this.message_list,
	rows = list.rows,
	message = this.env.messages[uid],
	row_class = 'message'
	+ (!flags.seen ? ' unread' : '')
	+ (flags.deleted ? ' deleted' : '')
	+ (flags.flagged ? ' flagged' : '')
	+ (flags.unread_children && flags.seen && !this.env.autoexpand_threads ? ' unroot' : '')
	+ (message.selected ? ' selected' : ''),
	// for performance use DOM instead of jQuery here
	row = document.createElement('tr');

	row.id = 'rcmrow'+uid;

	// message status icons
	css_class = 'msgicon';
	if (this.env.status_col === null) {
	css_class += ' status';
	if (flags.deleted)
	css_class += ' deleted';
	else if (!flags.seen)
	css_class += ' unread';
	else if (flags.unread_children > 0)
	css_class += ' unreadchildren';
	}
	if (flags.answered)
	css_class += ' replied';
	if (flags.forwarded)
	css_class += ' 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' + uid + '" 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' + uid + '" class="' + (message.expanded ? 'expanded' : 'collapsed') + '">  </div>';
	row_class += ' thread' + (message.expanded? ' expanded' : '');
	}
	}

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

	// build subject link
	if (!bw.ie && cols.subject) {
	var action = flags.mbox == this.env.drafts_mailbox ? 'compose' : 'show';
	var uid_param = flags.mbox == this.env.drafts_mailbox ? '_draft_uid' : '_uid';
	cols.subject = '<a href="./?_task=mail&_action='+action+'&_mbox='+urlencode(flags.mbox)+'&'+uid_param+'='+uid+'"'+
	' onclick="return rcube_event.cancel(event)" onmouseover="rcube_webmail.long_subject_title(this,'+(message.depth+1)+')">'+cols.subject+'</a>';
	}

	// add each submitted col
	for (n in this.env.coltypes) {
	c = this.env.coltypes[n];
	col = document.createElement('td');
	col.className = String(c).toLowerCase();

	if (c == 'flag') {
	css_class = (flags.flagged ? 'flagged' : 'unflagged');
	html = '<span id="flagicn'+uid+'" class="'+css_class+'"> </span>';
	}
	else if (c == 'attachment') {
	if (/application\/\|multipart\/(m\|signed)/.test(flags.ctype))
	html = '<span class="attachment"> </span>';
	else if (/multipart\/report/.test(flags.ctype))
	html = '<span class="report"> </span>';
	else
	html = ' ';
	}
	else if (c == 'status') {
	if (flags.deleted)
	css_class = 'deleted';
	else if (!flags.seen)
	css_class = 'unread';
	else if (flags.unread_children > 0)
	css_class = 'unreadchildren';
	else
	css_class = 'msgicon';
	html = '<span id="statusicn'+uid+'" class="'+css_class+'"> </span>';
	}
	else if (c == 'threads')
	html = expando;
	else if (c == 'subject') {
	if (bw.ie) {
	col.onmouseover = function() { rcube_webmail.long_subject_title_ie(this, message.depth+1); };
	if (bw.ie8)
	tree = '<span></span>' + tree; // #1487821
	}
	html = tree + cols[c];
	}
	else if (c == 'priority') {
	if (flags.prio > 0 && flags.prio < 6)
	html = '<span class="prio'+flags.prio+'"> </span>';
	else
	html = ' ';
	}
	else
	html = cols[c];

	col.innerHTML = html;

	row.appendChild(col);
	}

	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);
	}
	};

	this.set_list_sorting = function(sort_col, sort_order)
	{
	// set table header class
	$('#rcm'+this.env.sort_col).removeClass('sorted'+(this.env.sort_order.toUpperCase()));
	if (sort_col)
	$('#rcm'+sort_col).addClass('sorted'+sort_order);

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

	this.set_list_options = function(cols, sort_col, sort_order, threads)
	{
	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 (cols && cols.length) {
	// make sure new columns are added at the end of the list
	var i, idx, name, newcols = [], oldcols = this.env.coltypes;
	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,
	action = preview ? 'preview': 'show',
	url = '&_action='+action+'&_uid='+id+'&_mbox='+urlencode(this.env.mailbox);

	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;

	// add browser capabilities, so we can properly handle attachments
	url += '&_caps='+urlencode(this.browser_capabilities());

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

	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(this.env.comm_path+url, 1000, 1200);
	else
	this.location_href(this.env.comm_path+url, target, true);

	// mark as read and change mbox unread counter
	if (preview && this.message_list && this.message_list.rows[id] && this.message_list.rows[id].unread && this.env.preview_pane_mark_read >= 0) {
	this.preview_read_timer = setTimeout(function() {
	ref.set_message(id, 'unread', false);
	ref.update_thread_root(id, 'read');
	if (ref.env.unread_counts[ref.env.mailbox]) {
	ref.env.unread_counts[ref.env.mailbox] -= 1;
	ref.set_unread_count(ref.env.mailbox, ref.env.unread_counts[ref.env.mailbox], ref.env.mailbox == 'INBOX');
	}
	if (ref.env.preview_pane_mark_read > 0)
	ref.http_post('mark', {_uid: id, _flag: 'read', _quiet: 1});
	}, this.env.preview_pane_mark_read * 1000);
	}
	}
	};

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

	if (name && (frame = this.get_frame_element(name))) {
	if (!show && (win = this.get_frame_window(name))) {
	if (win.location && win.location.href.indexOf(this.env.blankpage)<0)
	win.location.href = this.env.blankpage;
	}
	else if (!bw.safari && !bw.konq)
	$(frame)[show ? 'show' : 'hide']();
	}

	if (!show && this.busy)
	this.set_busy(false, null, this.env.frame_lock);
	};

	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()
	{
	if (!this.env.frame_lock)
	(this.is_framed() ? parent.rcmail : this).env.frame_lock = this.set_busy(true, 'loading');
	};

	// 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_request('check-recent', params, lock);
	+ };
	+
	// list messages of a specific mailbox using filter
	this.filter_mailbox = function(filter)
	{
	var lock = this.set_busy(true, 'searching');

	this.clear_message_list();

	// reset vars
	this.env.current_page = 1;
	this.http_request('search', this.search_params(false, filter), lock);
	};

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

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

	// set page=1 if changeing to another mailbox
	if (this.env.mailbox != mbox) {
	page = 1;
	this.env.current_page = page;
	this.select_all_mode = false;
	}

	// 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;
	}

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

	this.clear_message_list = function()
	{
	this.env.messages = {};
	this.last_selected = 0;

	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, post_data)
	{
	// clear message list first
	this.message_list.clear();

	var lock = this.set_busy(true, 'loading');

	if (typeof post_data != 'object')
	post_data = {};
	post_data._mbox = mbox;
	if (page)
	post_data._page = page;

	this.http_request('list', post_data, lock);
	};

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

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

	this.message_list.selection = selection;
	}

	// expand all threads with unread children
	this.expand_unread = function()
	{
	var r, tbody = this.gui_objects.messagelist.tBodies[0],
	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 mark
	row.expanded = !row.expanded;
	this.set_unread_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.list.tBodies[0].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'+uid).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 ? p.unread_children + 1 : 1;
	}
	else {
	return;
	}

	this.set_message_icon(root);
	this.set_unread_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)
	return 0;

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

	if (!row.depth) // root message: decrease roots count
	count--;
	else if (row.unread) {
	// update unread_children for thread root
	parent = this.message_list.find_root(uid);
	rows[parent].unread_children--;
	this.set_unread_children(parent);
	}

	parent = row.parent_uid;

	// childrens
	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.uid).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'
	$('#rcmrow'+r.uid+' '+'.leaf:first')
	.attr('id', 'rcmexpando' + r.uid)
	.attr('class', (r.obj.style.display != 'none' ? 'expanded' : 'collapsed'))
	.bind('mousedown', {uid:r.uid, p:this},
	function(e) { return e.data.p.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 for roots
	for (var i=0; i<roots.length; i++)
	this.set_unread_children(roots[i].uid);

	return count;
	};

	this.delete_excessive_thread_rows = function()
	{
	var rows = this.message_list.rows,
	tbody = this.message_list.list.tBodies[0],
	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,
	row = this.message_list.rows[uid];

	if (!row)
	return false;

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

	row.icon.className = css_class;
	}

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

	row.msgicon.className = css_class;
	}

	if (row.flagicon) {
	css_class = (row.flagged ? 'flagged' : 'unflagged');
	row.flagicon.className = css_class;
	}
	};

	// 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')
	row.unread = status;
	else if(flag == 'deleted')
	row.deleted = status;
	else if (flag == 'replied')
	row.replied = status;
	else if (flag == 'forwarded')
	row.forwarded = status;
	else if (flag == 'flagged')
	row.flagged = 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);

	var rowobj = $(row.obj);

	if (row.unread && !rowobj.hasClass('unread'))
	rowobj.addClass('unread');
	else if (!row.unread && rowobj.hasClass('unread'))
	rowobj.removeClass('unread');

	if (row.deleted && !rowobj.hasClass('deleted'))
	rowobj.addClass('deleted');
	else if (!row.deleted && rowobj.hasClass('deleted'))
	rowobj.removeClass('deleted');

	if (row.flagged && !rowobj.hasClass('flagged'))
	rowobj.addClass('flagged');
	else if (!row.flagged && rowobj.hasClass('flagged'))
	rowobj.removeClass('flagged');

	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;

	if (!row.unread && row.unread_children && !row.expanded)
	$(row.obj).addClass('unroot');
	else
	$(row.obj).removeClass('unroot');
	};

	// copy selected messages to the specified mailbox
	this.copy_messages = function(mbox)
	{
	if (mbox && typeof mbox === 'object')
	mbox = mbox.id;

	// exit if current or no mailbox specified or if selection is empty
	if (!mbox \|\| mbox == this.env.mailbox \|\| (!this.env.uid && (!this.message_list \|\| !this.message_list.get_selection().length)))
	return;

	var a_uids = [], n, selection,
	lock = this.display_message(this.get_label('copyingmessage'), 'loading'),
	post_data = {_mbox: this.env.mailbox, _target_mbox: mbox, _from: (this.env.action ? this.env.action : '')};

	if (this.env.uid)
	a_uids[0] = this.env.uid;
	else {
	selection = this.message_list.get_selection();
	for (n in selection) {
	a_uids.push(selection[n]);
	}
	}

	post_data._uid = this.uids_to_list(a_uids);

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

	// move selected messages to the specified mailbox
	this.move_messages = function(mbox)
	{
	if (mbox && typeof mbox === 'object')
	mbox = mbox.id;

	// exit if current or no mailbox specified or if selection is empty
	if (!mbox \|\| mbox == this.env.mailbox \|\| (!this.env.uid && (!this.message_list \|\| !this.message_list.get_selection().length)))
	return;

	var lock = false,
	add_post = {_target_mbox: mbox, _from: (this.env.action ? this.env.action : '')};

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

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

	this._with_selected_messages('moveto', lock, add_post);
	};

	// delete selected messages from the current mailbox
	this.delete_messages = function(event)
	{
	var uid, i, len, trash = this.env.trash_mailbox,
	list = this.message_list,
	selection = list ? $.merge([], list.get_selection()) : [];

	// exit if no mailbox specified or if selection is empty
	if (!this.env.uid && !selection.length)
	return;

	// also select childs of collapsed rows
	for (i=0, len=selection.length; i<len; i++) {
	uid = selection[i];
	if (list.rows[uid].has_children && !list.rows[uid].expanded)
	list.select_childs(uid);
	}

	// 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
	// @TODO: we should check if defined trash mailbox exists
	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)) {
	if (confirm(this.get_label('deletemessagesconfirm')))
	this.permanently_remove_messages();
	}
	else
	this.move_messages(trash);
	}

	return true;
	};

	// delete the selected messages permanently
	this.permanently_remove_messages = function()
	{
	// exit if no mailbox specified or if selection is empty
	if (!this.env.uid && (!this.message_list \|\| !this.message_list.get_selection().length))
	return;

	this.show_contentframe(false);
	this._with_selected_messages('delete', false, {_from: this.env.action ? this.env.action : ''});
	};

	// Send a specifc moveto/delete request with UIDs of all selected messages
	// @private
	this._with_selected_messages = function(action, lock, post_data)
	{
	var a_uids = [], count = 0, msg, lock;

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

	if (this.env.uid)
	a_uids[0] = this.env.uid;
	else {
	var n, id, root, roots = [],
	selection = this.message_list.get_selection();

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

	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);
	}
	}
	this.message_list.remove_row(id, (this.env.display_next && n == selection.length-1));
	}
	// make sure there are no selected rows
	if (!this.env.display_next)
	this.message_list.clear_selection();
	// update thread tree icons
	for (n=0, len=roots.length; n<len; n++) {
	this.add_tree_icons(roots[n]);
	}
	}

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

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

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

	post_data._uid = this.uids_to_list(a_uids);
	post_data._mbox = this.env.mailbox;

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

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

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

	if (uid)
	a_uids[0] = uid;
	else if (this.env.uid)
	a_uids[0] = this.env.uid;
	else if (list) {
	selection = list.get_selection();
	for (n=0, len=selection.length; n<len; n++) {
	a_uids.push(selection[n]);
	}
	}

	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 = {_uid: this.uids_to_list(a_uids), _flag: flag},
	lock = this.display_message(this.get_label('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));

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

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

	for (i=0; i<len; i++)
	this.update_thread_root(a_uids[i], flag);
	};

	// set image to flagged or unflagged
	this.toggle_flagged_status = function(flag, a_uids)
	{
	var i, len = a_uids.length,
	post_data = {_uid: this.uids_to_list(a_uids), _flag: flag},
	lock = this.display_message(this.get_label('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));

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

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

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

	if (len == 1) {
	if (!rows.length \|\| (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 = {_uid: this.uids_to_list(a_uids), _flag: 'undelete'},
	lock = this.display_message(this.get_label('markingmessage'), 'loading');

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

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

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

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

	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);
	this.message_list.remove_row(uid, (this.env.display_next && i == this.message_list.selection.length-1));
	}
	else
	this.set_message(uid, 'deleted', true);
	}
	}

	// make sure there are no selected rows
	if (this.env.skip_deleted && this.message_list) {
	if(!this.env.display_next)
	this.message_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();
	}

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

	// ??
	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;

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

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

	// 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 icn_src, uid, i, len,
	rows = this.message_list ? this.message_list.rows : [];

	uids = String(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)
	{
	return this.select_all_mode ? '*' : uids.join(',');
	};

	// 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);
	};

	/*********************************************************/
	/******* 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)
	{
	var lock, post_data = {_mbox: mbox};

	if (!confirm(this.get_label('purgefolderconfirm')))
	return false;

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

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

	// test if purge command is allowed
	this.purge_mailbox_test = function()
	{
	return (this.env.messagecount && (this.env.mailbox == this.env.trash_mailbox \|\| this.env.mailbox == this.env.junk_mailbox
	\|\| this.env.mailbox.match('^' + RegExp.escape(this.env.trash_mailbox) + RegExp.escape(this.env.delimiter))
	\|\| this.env.mailbox.match('^' + RegExp.escape(this.env.junk_mailbox) + RegExp.escape(this.env.delimiter))));
	};


	/*********************************************************/
	/******* login form methods *******/
	/*********************************************************/

	// handler for keyboard events on the _user field
	this.login_user_keyup = function(e)
	{
	var key = rcube_event.get_keycode(e);
	var passwd = $('#rcmloginpwd');

	// enter
	if (key == 13 && passwd.length && !passwd.val()) {
	passwd.focus();
	return rcube_event.cancel(e);
	}

	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, 1150, 900);
	}
	else {
	this.redirect(url);
	window.resizeTo(Math.max(1150, $(window).width()), Math.max(900, $(window).height()));
	}
	};

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

	var input_from = $("[name='_from']"),
	input_to = $("[name='_to']"),
	input_subject = $("input[name='_subject']"),
	input_message = $("[name='_message']").get(0),
	html_mode = $("input[name='_is_html']").val() == '1',
	ac_fields = ['cc', 'bcc', 'replyto', 'followupto'],
	ac_props;

	// close compose step in opener
	if (window.opener && opener.rcmail && opener.rcmail.env.action == 'compose') {
	setTimeout(function(){ opener.history.back(); }, 100);
	this.env.opened_extwin = true;
	}

	// configure parallel autocompletion
	if (this.env.autocomplete_threads > 0) {
	ac_props = {
	threads: this.env.autocomplete_threads,
	sources: this.env.autocomplete_sources
	};
	}

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

	if (!html_mode) {
	this.set_caret_pos(input_message, this.env.top_posting ? 0 : $(input_message).val().length);
	// add signature according to selected identity
	// if we have HTML editor, signature is added in callback
	if (input_from.prop('type') == 'select-one' && !this.env.opened_extwin) {
	this.change_identity(input_from[0]);
	}
	}

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

	this.env.compose_focus_elem = document.activeElement;

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

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

	this.init_address_input_events = function(obj, props)
	{
	this.env.recipients_delimiter = this.env.recipients_separator + ' ';

	obj[bw.ie \|\| bw.safari \|\| bw.chrome ? 'keydown' : 'keypress'](function(e) { return ref.ksearch_keydown(e, this, props); })
	.attr('autocomplete', 'off');
	};

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

	if (!form)
	return;

	// all checks passed, send message
	var msgid = this.set_busy(true, draft ? 'savingmessage' : 'sendingmessage'),
	lang = this.spellcheck_lang(),
	files = [];

	// send files list
	$('li', this.gui_objects.attachmentlist).each(function() { files.push(this.id.replace(/^rcmfile/, '')); });
	$('input[name="_attachments"]', form).val(files.join());

	form.target = 'savetarget';
	form._draft.value = draft ? '1' : '';
	form.action = this.add_url(form.action, '_unlock', msgid);
	form.action = this.add_url(form.action, '_lang', lang);
	form.submit();
	};

	this.compose_recipient_select = function(list)
	{
	this.enable_command('add-recipient', list.selection.length > 0);
	};

	this.compose_add_recipient = function(field)
	{
	var recipients = [], input = $('#_'+field);

	if (this.contact_list && this.contact_list.selection.length) {
	for (var id, n=0; n < this.contact_list.selection.length; n++) {
	id = this.contact_list.selection[n];
	if (id && this.env.contactdata[id]) {
	recipients.push(this.env.contactdata[id]);

	// group is added, expand it
	if (id.charAt(0) == 'E' && this.env.contactdata[id].indexOf('@') < 0 && input.length) {
	var gid = id.substr(1);
	this.group2expand[gid] = { name:this.env.contactdata[id], input:input.get(0) };
	this.http_request('group-expand', {_source: this.env.source, _gid: gid}, false);
	}
	}
	}
	}

	if (recipients.length && input.length) {
	var oldval = input.val();
	input.val((oldval ? oldval + this.env.recipients_delimiter : '') + recipients.join(this.env.recipients_delimiter));
	this.triggerEvent('add-recipient', { field:field, recipients:recipients });
	}
	};

	// checks the input fields before sending a message
	this.check_compose_input = function(cmd)
	{
	// check input fields
	var ed, input_to = $("[name='_to']"),
	input_cc = $("[name='_cc']"),
	input_bcc = $("[name='_bcc']"),
	input_from = $("[name='_from']"),
	input_subject = $("[name='_subject']"),
	input_message = $("[name='_message']");

	// check sender (if have no identities)
	if (input_from.prop('type') == 'text' && !rcube_check_email(input_from.val(), true)) {
	alert(this.get_label('nosenderwarning'));
	input_from.focus();
	return false;
	}

	// check for empty recipient
	var recipients = input_to.val() ? input_to.val() : (input_cc.val() ? input_cc.val() : input_bcc.val());
	if (!rcube_check_email(recipients.replace(/^\s+/, '').replace(/[\s,;]+$/, ''), true)) {
	alert(this.get_label('norecipientwarning'));
	input_to.focus();
	return false;
	}

	// check if all files has been uploaded
	for (var key in this.env.attachments) {
	if (typeof this.env.attachments[key] === 'object' && !this.env.attachments[key].complete) {
	alert(this.get_label('notuploadedwarning'));
	return false;
	}
	}

	// display localized warning for missing subject
	if (input_subject.val() == '') {
	var myprompt = $('<div class="prompt">').html('<div class="message">' + this.get_label('nosubjectwarning') + '</div>').appendTo(document.body);
	var prompt_value = $('<input>').attr('type', 'text').attr('size', 30).appendTo(myprompt).val(this.get_label('nosubject'));

	var buttons = {};
	buttons[this.get_label('cancel')] = function(){
	input_subject.focus();
	$(this).dialog('close');
	};
	buttons[this.get_label('sendmessage')] = function(){
	input_subject.val(prompt_value.val());
	$(this).dialog('close');
	ref.command(cmd, { nocheck:true }); // repeat command which triggered this
	};

	myprompt.dialog({
	modal: true,
	resizable: false,
	buttons: buttons,
	close: function(event, ui) { $(this).remove() }
	});
	prompt_value.select();
	return false;
	}

	// Apply spellcheck changes if spell checker is active
	this.stop_spellchecking();

	if (window.tinyMCE)
	ed = tinyMCE.get(this.env.composebody);

	// check for empty body
	if (!ed && input_message.val() == '' && !confirm(this.get_label('nobodywarning'))) {
	input_message.focus();
	return false;
	}
	else if (ed) {
	if (!ed.getContent() && !confirm(this.get_label('nobodywarning'))) {
	ed.focus();
	return false;
	}
	// move body from html editor to textarea (just to be sure, #1485860)
	tinyMCE.triggerSave();
	}

	return true;
	};

	this.toggle_editor = function(props)
	{
	this.stop_spellchecking();

	if (props.mode == 'html') {
	this.plain2html($('#'+props.id).val(), props.id);
	tinyMCE.execCommand('mceAddControl', false, props.id);

	if (this.env.default_font)
	setTimeout(function() {
	$(tinyMCE.get(props.id).getBody()).css('font-family', rcmail.env.default_font);
	}, 500);
	}
	else {
	var thisMCE = tinyMCE.get(props.id), existingHtml;

	if (existingHtml = thisMCE.getContent()) {
	if (!confirm(this.get_label('editorwarning'))) {
	return false;
	}
	this.html2plain(existingHtml, props.id);
	}
	tinyMCE.execCommand('mceRemoveControl', false, props.id);
	}

	return true;
	};

	this.stop_spellchecking = function()
	{
	var ed;

	if (window.tinyMCE && (ed = tinyMCE.get(this.env.composebody))) {
	if (ed.plugins && ed.plugins.spellchecker && ed.plugins.spellchecker.active)
	ed.execCommand('mceSpellCheck');
	}
	else if (ed = this.env.spellcheck) {
	if (ed.state && ed.state != 'ready' && ed.state != 'no_error_found')
	$(ed.spell_span).trigger('click');
	}

	this.spellcheck_state();
	};

	this.spellcheck_state = function()
	{
	var ed, active;

	if (window.tinyMCE && (ed = tinyMCE.get(this.env.composebody)) && ed.plugins && ed.plugins.spellchecker)
	active = ed.plugins.spellchecker.active;
	else if ((ed = this.env.spellcheck) && ed.state)
	active = ed.state != 'ready' && ed.state != 'no_error_found';

	if (rcmail.buttons.spellcheck)
	$('#'+rcmail.buttons.spellcheck[0].id)[active ? 'addClass' : 'removeClass']('selected');

	return active;
	};

	// get selected language
	this.spellcheck_lang = function()
	{
	var ed;

	if (window.tinyMCE && (ed = tinyMCE.get(this.env.composebody)) && ed.plugins && ed.plugins.spellchecker)
	return ed.plugins.spellchecker.selectedLang;
	else if (this.env.spellcheck)
	return GOOGIE_CUR_LANG;
	};

	this.spellcheck_lang_set = function(lang)
	{
	var ed;

	if (window.tinyMCE && (ed = tinyMCE.get(this.env.composebody)) && ed.plugins)
	ed.plugins.spellchecker.selectedLang = lang;
	else if (this.env.spellcheck)
	this.env.spellcheck.setCurrentLanguage(lang);
	};

	// resume spellchecking, highlight provided mispellings without new ajax request
	this.spellcheck_resume = function(ishtml, data)
	{
	if (ishtml) {
	var ed = tinyMCE.get(this.env.composebody);
	sp = ed.plugins.spellchecker;

	sp.active = 1;
	sp._markWords(data);
	ed.nodeChanged();
	}
	else {
	var sp = this.env.spellcheck;
	sp.prepare(false, true);
	sp.processData(data);
	}

	this.spellcheck_state();
	}

	this.set_draft_id = function(id)
	{
	$("input[name='_draft_saveid']").val(id);
	};

	this.auto_save_start = function()
	{
	if (this.env.draft_autosave)
	this.save_timer = setTimeout(function(){ ref.command("savedraft"); }, this.env.draft_autosave * 1000);

	// Unlock interface now that saving is complete
	this.busy = false;
	};

	this.compose_field_hash = function(save)
	{
	// check input fields
	var ed, i, 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 + ':';

	if (window.tinyMCE && (ed = tinyMCE.get(this.env.composebody)))
	str += ed.getContent();
	else
	str += $("[name='_message']").val();

	if (this.env.attachments)
	for (var upload_id in this.env.attachments)
	str += upload_id;

	if (save)
	this.cmp_hash = str;

	return str;
	};

	this.change_identity = function(obj, show_sig)
	{
	if (!obj \|\| !obj.options)
	return false;

	if (!show_sig)
	show_sig = this.env.show_sig;

	var cursor_pos, p = -1,
	id = obj.options[obj.selectedIndex].value,
	input_message = $("[name='_message']"),
	message = input_message.val(),
	is_html = ($("input[name='_is_html']").val() == '1'),
	sig = this.env.identity;

	// enable manual signature insert
	if (this.env.signatures && this.env.signatures[id]) {
	this.enable_command('insert-sig', true);
	this.env.compose_commands.push('insert-sig');
	}
	else
	this.enable_command('insert-sig', false);

	if (!is_html) {
	// remove the 'old' signature
	if (show_sig && sig && this.env.signatures && this.env.signatures[sig]) {
	sig = this.env.signatures[sig].text;
	sig = sig.replace(/\r\n/g, '\n');

	p = this.env.sig_above ? message.indexOf(sig) : message.lastIndexOf(sig);
	if (p >= 0)
	message = message.substring(0, p) + message.substring(p+sig.length, message.length);
	}
	// add the new signature string
	if (show_sig && this.env.signatures && this.env.signatures[id]) {
	sig = this.env.signatures[id].text;
	sig = sig.replace(/\r\n/g, '\n');

	if (this.env.sig_above) {
	if (p >= 0) { // in place of removed signature
	message = message.substring(0, p) + sig + message.substring(p, message.length);
	cursor_pos = p - 1;
	}
	else if (pos = this.get_caret_pos(input_message.get(0))) { // at cursor position
	message = message.substring(0, pos) + '\n' + sig + '\n\n' + message.substring(pos, message.length);
	cursor_pos = pos;
	}
	else { // on top
	cursor_pos = 0;
	message = '\n\n' + sig + '\n\n' + message.replace(/^[\r\n]+/, '');
	}
	}
	else {
	message = message.replace(/[\r\n]+$/, '');
	cursor_pos = !this.env.top_posting && message.length ? message.length+1 : 0;
	message += '\n\n' + sig;
	}
	}
	else
	cursor_pos = this.env.top_posting ? 0 : message.length;

	input_message.val(message);

	// move cursor before the signature
	this.set_caret_pos(input_message.get(0), cursor_pos);
	}
	else if (show_sig && this.env.signatures) { // html
	var editor = tinyMCE.get(this.env.composebody),
	sigElem = editor.dom.get('_rc_sig');

	// Append the signature as a div within the body
	if (!sigElem) {
	var body = editor.getBody(),
	doc = editor.getDoc();

	sigElem = doc.createElement('div');
	sigElem.setAttribute('id', '_rc_sig');

	if (this.env.sig_above) {
	// if no existing sig and top posting then insert at caret pos
	editor.getWin().focus(); // correct focus in IE & Chrome

	var node = editor.selection.getNode();
	if (node.nodeName == 'BODY') {
	// no real focus, insert at start
	body.insertBefore(sigElem, body.firstChild);
	body.insertBefore(doc.createElement('br'), body.firstChild);
	}
	else {
	body.insertBefore(sigElem, node.nextSibling);
	body.insertBefore(doc.createElement('br'), node.nextSibling);
	}
	}
	else {
	if (bw.ie) // add empty line before signature on IE
	body.appendChild(doc.createElement('br'));

	body.appendChild(sigElem);
	}
	}

	if (this.env.signatures[id])
	sigElem.innerHTML = this.env.signatures[id].html;
	}

	this.env.identity = id;
	return true;
	};

	// upload attachment file
	this.upload_file = function(form)
	{
	if (!form)
	return false;

	// get file input field, count files on capable browser
	var i, size = 0, field = $('input[type=file]', form).get(0),
	files = field.files ? field.files.length : field.value ? 1 : 0;

	// create hidden iframe and post upload form
	if (files) {
	// check file size
	if (field.files && this.env.max_filesize && this.env.filesizeerror) {
	for (i=0; i<files; i++)
	size += field.files[i].size;
	if (size && size > this.env.max_filesize) {
	this.display_message(this.env.filesizeerror, 'error');
	return;
	}
	}

	var frame_name = this.async_upload_form(form, 'upload', function(e) {
	var d, content = '';
	try {
	if (this.contentDocument) {
	d = this.contentDocument;
	} else if (this.contentWindow) {
	d = this.contentWindow.document;
	}
	content = d.childNodes[0].innerHTML;
	} catch (err) {}

	if (!content.match(/add2attachment/) && (!bw.opera \|\| (rcmail.env.uploadframe && rcmail.env.uploadframe == e.data.ts))) {
	if (!content.match(/display_message/))
	rcmail.display_message(rcmail.get_label('fileuploaderror'), 'error');
	rcmail.remove_from_attachment_list(e.data.ts);
	}
	// Opera hack: handle double onload
	if (bw.opera)
	rcmail.env.uploadframe = e.data.ts;
	});

	// display upload indicator and cancel button
	var content = '<span>' + this.get_label('uploading' + (files > 1 ? 'many' : '')) + '</span>',
	ts = frame_name.replace(/^rcmupload/, '');

	this.add2attachment_list(ts, { name:'', html:content, classname:'uploading', frame:frame_name, complete:false });

	// upload progress support
	if (this.env.upload_progress_time) {
	this.upload_progress_start('upload', ts);
	}
	}

	// set reference to the form object
	this.gui_objects.attachmentform = form;
	return true;
	};

	// add file name to attachment list
	// called from upload page
	this.add2attachment_list = function(name, att, upload_id)
	{
	if (!this.gui_objects.attachmentlist)
	return false;

	if (!att.complete && ref.env.loadingicon)
	att.html = '<img src="'+ref.env.loadingicon+'" alt="" class="uploading" />' + att.html;

	if (!att.complete && att.frame)
	att.html = '<a title="'+this.get_label('cancel')+'" onclick="return rcmail.cancel_attachment_upload(\''+name+'\', \''+att.frame+'\');" href="#cancelupload" class="cancelupload">'
	+ (this.env.cancelicon ? '<img src="'+this.env.cancelicon+'" alt="" />' : this.get_label('cancel')) + '</a>' + att.html;

	var indicator, li = $('<li>').attr('id', name).addClass(att.classname).html(att.html);

	// 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);
	}

	if (upload_id && this.env.attachments[upload_id])
	delete this.env.attachments[upload_id];

	this.env.attachments[name] = att;

	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 true;
	};

	this.cancel_attachment_upload = function(name, frame_name)
	{
	if (!name \|\| !frame_name)
	return false;

	this.remove_from_attachment_list(name);
	$("iframe[name='"+frame_name+"']").remove();
	return false;
	};

	this.upload_progress_start = function(action, name)
	{
	setTimeout(function() { rcmail.http_request(action, {_progress: name}); },
	this.env.upload_progress_time * 1000);
	};

	this.upload_progress_update = function(param)
	{
	var elem = $('#'+param.name + '> span');

	if (!elem.length \|\| !param.text)
	return;

	elem.text(param.text);

	if (!param.done)
	this.upload_progress_start(param.action, param.name);
	};

	// send remote request to add a new contact
	this.add_contact = function(value)
	{
	if (value)
	this.http_post('addcontact', {_address: value});

	return true;
	};

	// send remote request to search mail or contacts
	this.qsearch = function(value)
	{
	if (value != '') {
	var r, lock = this.set_busy(true, 'searching'),
	url = this.search_params(value);

	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('search', url, lock);

	this.env.qsearch = {lock: lock, request: r};
	}
	};

	// build URL params for search
	this.search_params = function(search, filter)
	{
	var n, url = {}, mods_arr = [],
	mods = this.env.search_mods,
	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 (filter)
	url._filter = filter;

	if (search) {
	url._q = search;

	if (mods && this.message_list)
	mods = mods[mbox] ? mods[mbox] : mods['*'];

	if (mods) {
	for (n in mods)
	mods_arr.push(n);
	url._headers = mods_arr.join(',');
	}
	}

	if (mbox)
	url._mbox = mbox;

	return url;
	};

	// reset quick-search form
	this.reset_qsearch = function()
	{
	if (this.gui_objects.qsearchbox)
	this.gui_objects.qsearchbox.value = '';

	if (this.env.qsearch)
	this.abort_request(this.env.qsearch);

	this.env.qsearch = null;
	this.env.search_request = null;
	this.env.search_id = null;
	};

	this.sent_successfully = function(type, msg)
	{
	this.display_message(msg, type);

	if (this.env.extwin && window.opener && opener.rcmail) {
	this.lock_form(this.gui_objects.messageform);
	opener.rcmail.display_message(msg, type);
	setTimeout(function(){ window.close() }, 1000);
	}
	else {
	// before redirect we need to wait some time for Chrome (#1486177)
	setTimeout(function(){ ref.list_mailbox(); }, 500);
	}
	};


	/*********************************************************/
	/******* 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 highlight,
	key = rcube_event.get_keycode(e),
	mod = rcube_event.get_modifier(e);

	switch (key) {
	case 38: // arrow up
	case 40: // arrow down
	if (!this.ksearch_visible())
	break;

	var dir = key==38 ? 1 : 0;

	highlight = document.getElementById('rcmksearchSelected');
	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 (mod == 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();

	return rcube_event.cancel(e);

	case 27: // escape
	this.ksearch_hide();
	return;

	case 37: // left
	case 39: // right
	if (mod != SHIFT_KEY)
	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)
	{
	var current = $('#rcmksearchSelected');
	if (current[0] && node) {
	current.removeAttr('id').removeClass('selected');
	}

	if (node) {
	$(node).attr('id', 'rcmksearchSelected').addClass('selected');
	this.ksearch_selected = node._rcm_id;
	}
	};

	this.insert_recipient = function(id)
	{
	if (id === null \|\| !this.env.contacts[id] \|\| !this.ksearch_input)
	return;

	// get cursor pos
	var inp_value = this.ksearch_input.value,
	cpos = this.get_caret_pos(this.ksearch_input),
	p = inp_value.lastIndexOf(this.ksearch_value, cpos),
	trigger = false,
	insert = '',
	// replace search string with full address
	pre = inp_value.substring(0, p),
	end = inp_value.substring(p+this.ksearch_value.length, inp_value.length);

	this.ksearch_destroy();

	// insert all members of a group
	if (typeof this.env.contacts[id] === 'object' && this.env.contacts[id].id) {
	insert += this.env.contacts[id].name + this.env.recipients_delimiter;
	this.group2expand[this.env.contacts[id].id] = $.extend({ input: this.ksearch_input }, this.env.contacts[id]);
	this.http_request('mail/group-expand', {_source: this.env.contacts[id].source, _gid: this.env.contacts[id].id}, false);
	}
	else if (typeof this.env.contacts[id] === 'string') {
	insert = this.env.contacts[id] + this.env.recipients_delimiter;
	trigger = true;
	}

	this.ksearch_input.value = pre + insert + end;

	// set caret to insert pos
	cpos = p+insert.length;
	if (this.ksearch_input.setSelectionRange)
	this.ksearch_input.setSelectionRange(cpos, cpos);

	if (trigger)
	this.triggerEvent('autocomplete_insert', { field:this.ksearch_input, insert:insert });
	};

	this.replace_group_recipients = function(id, recipients)
	{
	if (this.group2expand[id]) {
	this.group2expand[id].input.value = this.group2expand[id].input.value.replace(this.group2expand[id].name, recipients);
	this.triggerEvent('autocomplete_insert', { field:this.group2expand[id].input, insert:recipients });
	this.group2expand[id] = null;
	}
	};

	// address search processor
	this.ksearch_get_results = function(props)
	{
	var inp_value = this.ksearch_input ? this.ksearch_input.value : null;

	if (inp_value === null)
	return;

	if (this.ksearch_pane && this.ksearch_pane.is(":visible"))
	this.ksearch_pane.hide();

	// get string from current cursor pos to last comma
	var cpos = this.get_caret_pos(this.ksearch_input),
	p = inp_value.lastIndexOf(this.env.recipients_separator, cpos-1),
	q = inp_value.substring(p+1, cpos),
	min = this.env.autocomplete_min_length,
	ac = this.ksearch_data;

	// trim query string
	q = $.trim(q);

	// 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;

	// ...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.indexOf(old_value) == 0 && (!ac \|\| ac.num <= 0) && this.env.contacts && !this.env.contacts.length)
	return;

	var i, lock, source, xhr, reqid = new Date().getTime(),
	post_data = {_search: q, _id: reqid},
	threads = props && props.threads ? props.threads : 1,
	sources = props && props.sources ? props.sources : [],
	action = props && props.action ? props.action : 'mail/autocomplete';

	this.ksearch_data = {id: reqid, sources: sources.slice(), action: action,
	locks: [], requests: [], num: sources.length};

	for (i=0; i<threads; i++) {
	source = this.ksearch_data.sources.shift();
	if (threads > 1 && source === undefined)
	break;

	post_data._source = source ? source : '';
	lock = this.display_message(this.get_label('searching'), 'loading');
	xhr = this.http_post(action, post_data, lock);

	this.ksearch_data.locks.push(lock);
	this.ksearch_data.requests.push(xhr);
	}
	};

	this.ksearch_query_results = function(results, search, 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, len, ul, li, text, init,
	value = this.ksearch_value,
	data = this.ksearch_data,
	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')
	.css({ position:'absolute', 'z-index':30000 }).append(ul).appendTo(document.body);
	this.ksearch_pane.__ul = ul[0];
	}

	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 = [];
	// move the results pane right under the input box
	var pos = $(this.ksearch_input).offset();
	this.ksearch_pane.css({ left:pos.left+'px', top:(pos.top + this.ksearch_input.offsetHeight)+'px', 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].name : results[i];
	li = document.createElement('LI');
	li.innerHTML = text.replace(new RegExp('('+RegExp.escape(value)+')', 'ig'), '##$1%%').replace(/</g, '<').replace(/>/g, '>').replace(/##([^%]+)%%/g, '<b>$1</b>');
	li.onmouseover = function(){ ref.ksearch_select(this); };
	li.onmouseup = function(){ ref.ksearch_click(this) };
	li._rcm_id = this.env.contacts.length + i;
	ul.appendChild(li);
	maxlen -= 1;
	}
	}

	if (ul.childNodes.length) {
	this.ksearch_pane.show();
	// select the first
	if (!this.env.contacts.length) {
	$('li:first', ul).attr('id', 'rcmksearchSelected').addClass('selected');
	this.ksearch_selected = 0;
	}
	}

	if (len)
	this.env.contacts = this.env.contacts.concat(results);

	// run next parallel search
	if (data.id == reqid) {
	data.num--;
	if (maxlen > 0 && data.sources.length) {
	var lock, xhr, source = data.sources.shift(), post_data;
	if (source) {
	post_data = {_search: value, _id: reqid, _source: source};
	lock = this.display_message(this.get_label('searching'), 'loading');
	xhr = this.http_post(data.action, post_data, lock);

	this.ksearch_data.locks.push(lock);
	this.ksearch_data.requests.push(xhr);
	}
	}
	else if (!maxlen) {
	if (!this.ksearch_msg)
	this.ksearch_msg = this.display_message(this.get_label('autocompletemore'));
	// abort pending searches
	this.ksearch_abort();
	}
	}
	};

	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_destroy();
	};

	// Clears autocomplete data/requests
	this.ksearch_destroy = function()
	{
	this.ksearch_abort();

	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;
	}

	// Aborts pending autocomplete requests
	this.ksearch_abort = function()
	{
	var i, len, ac = this.ksearch_data;

	if (!ac)
	return;

	for (i=0, len=ac.locks.length; i<len; i++)
	this.abort_request({request: ac.requests[i], lock: ac.locks[i]});
	};


	/*********************************************************/
	/******* address book methods *******/
	/*********************************************************/

	this.contactlist_keypress = function(list)
	{
	if (list.key_pressed == list.DELETE_KEY)
	this.command('delete');
	};

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

	var n, id, sid, ref = this, writable = false,
	source = this.env.source ? this.env.address_sources[this.env.source] : null;

	if (id = list.get_single_selection())
	this.preview_timer = setTimeout(function(){ ref.load_contact(id, 'show'); }, 200);
	else if (this.env.contentframe)
	this.show_contentframe(false);

	// no source = search result, we'll need to detect if any of
	// selected contacts are in writable addressbook to enable edit/delete
	if (list.selection.length) {
	if (!source) {
	for (n in list.selection) {
	sid = String(list.selection[n]).replace(/^[^-]+-/, '');
	if (sid && this.env.address_sources[sid] && !this.env.address_sources[sid].readonly) {
	writable = true;
	break;
	}
	}
	}
	else {
	writable = !source.readonly;
	}
	}

	// if a group is currently selected, and there is at least one contact selected
	// thend we can enable the group-remove-selected command
	this.enable_command('group-remove-selected', this.env.group && list.selection.length > 0);
	this.enable_command('compose', this.env.group \|\| list.selection.length > 0);
	this.enable_command('edit', id && writable);
	this.enable_command('delete', list.selection.length && writable);

	return false;
	};

	this.list_contacts = function(src, group, page)
	{
	var win, folder, url = {},
	target = window;

	if (!src)
	src = this.env.source;

	if (page && this.current_page == page && src == this.env.source && group == this.env.group)
	return false;

	if (src != this.env.source) {
	page = this.env.current_page = 1;
	this.reset_qsearch();
	}
	else if (group != this.env.group)
	page = this.env.current_page = 1;

	if (this.env.search_id)
	folder = 'S'+this.env.search_id;
	else
	folder = group ? 'G'+src+group : src;

	this.select_folder(folder);

	this.env.source = src;
	this.env.group = group;

	// 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 messages
	if (this.env.search_request)
	url._search = this.env.search_request;

	this.http_request(this.env.task == 'mail' ? 'list-contacts' : 'list', url, lock);
	};

	this.list_contacts_clear = function()
	{
	this.contact_list.clear(true);
	this.show_contentframe(false);
	this.enable_command('delete', false);
	this.enable_command('compose', this.env.group ? true : false);
	};

	// load contact record
	this.load_contact = function(cid, action, framed)
	{
	var win, url = {}, target = window;

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

	// load dummy content
	if (!cid) {
	// unselect selected row(s)
	this.contact_list.clear_selection();
	this.enable_command('delete', 'compose', false);
	}
	}
	else if (framed)
	return false;

	if (action && (cid \|\| action=='add') && !this.drag_active) {
	if (this.env.group)
	url._gid = this.env.group;

	url._action = action;
	url._source = this.env.source;
	url._cid = cid;

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

	return true;
	};

	// add/delete member to/from the group
	this.group_member_change = function(what, cid, source, gid)
	{
	what = what == 'add' ? 'add' : 'del';
	var label = this.get_label(what == 'add' ? 'addingmember' : 'removingmember'),
	lock = this.display_message(label, 'loading'),
	post_data = {_cid: cid, _source: source, _gid: gid};

	this.http_post('group-'+what+'members', post_data, lock);
	};

	// copy a contact to the specified target (group or directory)
	this.copy_contact = function(cid, to)
	{
	if (!cid)
	cid = this.contact_list.get_selection().join(',');

	if (to.type == 'group' && to.source == this.env.source)
	this.group_member_change('add', cid, to.source, to.id);
	else if (to.type == 'group' && !this.env.address_sources[to.source].readonly) {
	var lock = this.display_message(this.get_label('copyingcontact'), 'loading'),
	post_data = {_cid: cid, _source: this.env.source, _to: to.source, _togid: to.id,
	_gid: (this.env.group ? this.env.group : '')};

	this.http_post('copy', post_data, lock);
	}
	else if (to.id != this.env.source && cid && this.env.address_sources[to.id] && !this.env.address_sources[to.id].readonly) {
	var lock = this.display_message(this.get_label('copyingcontact'), 'loading'),
	post_data = {_cid: cid, _source: this.env.source, _to: to.id,
	_gid: (this.env.group ? this.env.group : '')};

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

	this.delete_contacts = function()
	{
	var selection = this.contact_list.get_selection(),
	undelete = this.env.source && this.env.address_sources[this.env.source].undelete;

	// exit if no mailbox specified or if selection is empty
	if (!(selection.length \|\| this.env.cid) \|\| (!undelete && !confirm(this.get_label('deletecontactconfirm'))))
	return;

	var id, n, a_cids = [],
	post_data = {_source: this.env.source, _from: (this.env.action ? this.env.action : '')},
	lock = this.display_message(this.get_label('contactdeleting'), 'loading');

	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, (n == selection.length-1));
	}

	// hide content frame if we delete the currently displayed contact
	if (selection.length == 1)
	this.show_contentframe(false);
	}

	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('delete', post_data, lock)

	return true;
	};

	// update a contact record in the list
	this.update_contact_row = function(cid, cols_arr, newcid, source)
	{
	var c, row, 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;
	}

	if (list.rows[cid] && (row = list.rows[cid].obj)) {
	for (c=0; c<cols_arr.length; c++)
	if (row.cells[c])
	$(row.cells[c]).html(cols_arr[c]);

	// cid change
	if (newcid) {
	newcid = this.html_identifier(newcid);
	row.id = 'rcmrow' + newcid;
	list.remove_row(cid);
	list.init_row(row);
	list.selection[0] = newcid;
	row.style.display = '';
	}
	}
	};

	// add row to contacts list
	this.add_contact_row = function(cid, cols, classes)
	{
	if (!this.gui_objects.contactslist)
	return false;

	var c, col, list = this.contact_list,
	row = document.createElement('tr');

	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 = document.createElement('td');
	col.className = String(c).toLowerCase();
	col.innerHTML = cols[c];
	row.appendChild(col);
	}

	list.insert_row(row);

	this.enable_command('export', list.rowcount > 0);
	};

	this.init_contact_form = function()
	{
	var ref = this, col;

	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;
	});

	$('select.addfieldmenu').change(function(e) {
	ref.insert_edit_field($(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: '-100:+10',
	showOtherMonths: true,
	selectOtherMonths: true,
	onSelect: function(dateText) { $(this).focus().val(dateText) }
	});
	$('input.datepicker').datepicker();
	}

	$("input[type='text']:visible").first().focus();
	};

	this.group_create = function()
	{
	this.add_input_row('contactgroup');
	};

	this.group_rename = function()
	{
	if (!this.env.group \|\| !this.gui_objects.folderlist)
	return;

	if (!this.name_input) {
	this.enable_command('list', 'listgroup', false);
	this.name_input = $('<input>').attr('type', 'text').val(this.env.contactgroups['G'+this.env.source+this.env.group].name);
	this.name_input.bind('keydown', function(e){ return rcmail.add_input_keydown(e); });
	this.env.group_renaming = true;

	var link, li = this.get_folder_li(this.env.source+this.env.group, 'rcmliG');
	if (li && (link = li.firstChild)) {
	$(link).hide().before(this.name_input);
	}
	}

	this.name_input.select().focus();
	};

	this.group_delete = function()
	{
	if (this.env.group && confirm(this.get_label('deletegroupconfirm'))) {
	var lock = this.set_busy(true, 'groupdeleting');
	this.http_post('group-delete', {_source: this.env.source, _gid: this.env.group}, lock);
	}
	};

	// callback from server upon group-delete command
	this.remove_group_item = function(prop)
	{
	var li, key = 'G'+prop.source+prop.id;
	if ((li = this.get_folder_li(key))) {
	this.triggerEvent('group_delete', { source:prop.source, id:prop.id, li:li });

	li.parentNode.removeChild(li);
	delete this.env.contactfolders[key];
	delete this.env.contactgroups[key];
	}

	this.list_contacts(prop.source, 0);
	};

	// @TODO: maybe it would be better to use popup instead of inserting input to the list?
	this.add_input_row = function(type)
	{
	if (!this.gui_objects.folderlist)
	return;

	if (!this.name_input) {
	this.name_input = $('<input>').attr('type', 'text').data('tt', type);
	this.name_input.bind('keydown', function(e){ return rcmail.add_input_keydown(e); });
	this.name_input_li = $('<li>').addClass(type).append(this.name_input);

	var li = type == 'contactsearch' ? $('li:last', this.gui_objects.folderlist) : this.get_folder_li(this.env.source);
	this.name_input_li.insertAfter(li);
	}

	this.name_input.select().focus();
	};

	//remove selected contacts from current active group
	this.group_remove_selected = function()
	{
	ref.http_post('group-delmembers', {_cid: this.contact_list.selection,
	_source: this.env.source, _gid: this.env.group});
	};

	//callback after deleting contact(s) from current group
	this.remove_group_contacts = function(props)
	{
	if('undefined' != typeof this.env.group && (this.env.group === props.gid)){
	var n, selection = this.contact_list.get_selection();
	for (n=0; n<selection.length; n++) {
	id = selection[n];
	this.contact_list.remove_row(id, (n == selection.length-1));
	}
	}
	}

	// handler for keyboard events on the input field
	this.add_input_keydown = function(e)
	{
	var key = rcube_event.get_keycode(e),
	input = $(e.target), itype = input.data('tt');

	// enter
	if (key == 13) {
	var newname = input.val();

	if (newname) {
	var lock = this.set_busy(true, 'loading');

	if (itype == 'contactsearch')
	this.http_post('search-create', {_search: this.env.search_request, _name: newname}, lock);
	else if (this.env.group_renaming)
	this.http_post('group-rename', {_source: this.env.source, _gid: this.env.group, _name: newname}, lock);
	else
	this.http_post('group-create', {_source: this.env.source, _name: newname}, lock);
	}
	return false;
	}
	// escape
	else if (key == 27)
	this.reset_add_input();

	return true;
	};

	this.reset_add_input = function()
	{
	if (this.name_input) {
	if (this.env.group_renaming) {
	var li = this.name_input.parent();
	li.children().last().show();
	this.env.group_renaming = false;
	}

	this.name_input.remove();

	if (this.name_input_li)
	this.name_input_li.remove();

	this.name_input = this.name_input_li = null;
	}

	this.enable_command('list', 'listgroup', true);
	};

	// callback for creating a new contact group
	this.insert_contact_group = function(prop)
	{
	this.reset_add_input();

	prop.type = 'group';
	var key = 'G'+prop.source+prop.id,
	link = $('<a>').attr('href', '#')
	.attr('rel', prop.source+':'+prop.id)
	.click(function() { return rcmail.command('listgroup', prop, this); })
	.html(prop.name),
	li = $('<li>').attr({id: 'rcmli'+this.html_identifier(key), 'class': 'contactgroup'})
	.append(link);

	this.env.contactfolders[key] = this.env.contactgroups[key] = prop;
	this.add_contact_group_row(prop, li);

	this.triggerEvent('group_insert', { id:prop.id, source:prop.source, name:prop.name, li:li[0] });
	};

	// callback for renaming a contact group
	this.update_contact_group = function(prop)
	{
	this.reset_add_input();

	var key = 'G'+prop.source+prop.id,
	li = this.get_folder_li(key),
	link;

	// group ID has changed, replace link node and identifiers
	if (li && prop.newid) {
	var newkey = 'G'+prop.source+prop.newid,
	newprop = $.extend({}, prop);;

	li.id = 'rcmli' + this.html_identifier(newkey);
	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';

	link = $('<a>').attr('href', '#')
	.attr('rel', prop.source+':'+prop.newid)
	.click(function() { return rcmail.command('listgroup', newprop, this); })
	.html(prop.name);
	$(li).children().replaceWith(link);
	}
	// update displayed group name
	else if (li && (link = li.firstChild) && link.tagName.toLowerCase() == 'a')
	link.innerHTML = prop.name;

	this.env.contactfolders[key].name = this.env.contactgroups[key].name = prop.name;
	this.add_contact_group_row(prop, $(li), true);

	this.triggerEvent('group_update', { id:prop.id, source:prop.source, name:prop.name, li:li[0], newid:prop.newid });
	};

	// add contact group row to the list, with sorting
	this.add_contact_group_row = function(prop, li, reloc)
	{
	var row, name = prop.name.toUpperCase(),
	sibling = this.get_folder_li(prop.source),
	prefix = 'rcmliG' + this.html_identifier(prop.source);

	// When renaming groups, we need to remove it from DOM and insert it in the proper place
	if (reloc) {
	row = li.clone(true);
	li.remove();
	}
	else
	row = li;

	$('li[id^="'+prefix+'"]', this.gui_objects.folderlist).each(function(i, elem) {
	if (name >= $(this).text().toUpperCase())
	sibling = elem;
	else
	return false;
	});

	row.insertAfter(sibling);
	};

	this.update_group_commands = function()
	{
	var source = this.env.source != '' ? this.env.address_sources[this.env.source] : null;
	this.enable_command('group-create', (source && source.groups && !source.readonly));
	this.enable_command('group-rename', 'group-delete', (source && source.groups && this.env.group && !source.readonly));
	};

	this.init_edit_field = function(col, elem)
	{
	var label = this.env.coltypes[col].label;

	if (!elem)
	elem = $('.ff_' + col);

	if (label)
	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) {
	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.length && appendcontainer.get(0).nodeName == 'FIELDSET') {
	var input, colprop = this.env.coltypes[col],
	row = $('<div>').addClass('row'),
	cell = $('<div>').addClass('contactfieldcontent data'),
	label = $('<div>').addClass('contactfieldlabel label');

	if (colprop.subtypes_select)
	label.html(colprop.subtypes_select);
	else
	label.html(colprop.label);

	var name_suffix = colprop.limit != 1 ? '[]' : '';
	if (colprop.type == 'text' \|\| colprop.type == 'date') {
	input = $('<input>')
	.addClass('ff_'+col)
	.attr({type: 'text', name: '_'+col+name_suffix, size: colprop.size})
	.appendTo(cell);

	this.init_edit_field(col, input);

	if (colprop.type == 'date' && $.datepicker)
	input.datepicker();
	}
	else if (colprop.type == 'textarea') {
	input = $('<textarea>')
	.addClass('ff_'+col)
	.attr({ name: '_'+col+name_suffix, cols:colprop.size, rows:colprop.rows })
	.appendTo(cell);

	this.init_edit_field(col, input);
	}
	else if (colprop.type == 'composite') {
	var childcol, cp, first, templ, cols = [], suffices = [];
	// read template for composite field order
	if ((templ = this.env[col+'_template'])) {
	for (var j=0; j < templ.length; j++) {
	cols.push(templ[j][1]);
	suffices.push(templ[j][2]);
	}
	}
	else { // list fields according to appearance in colprop
	for (childcol in colprop.childs)
	cols.push(childcol);
	}

	for (var i=0; i < cols.length; i++) {
	childcol = cols[i];
	cp = colprop.childs[childcol];
	input = $('<input>')
	.addClass('ff_'+childcol)
	.attr({ type: 'text', name: '_'+childcol+name_suffix, size: cp.size })
	.appendTo(cell);
	cell.append(suffices[i] \|\| " ");
	this.init_edit_field(childcol, input);
	if (!first) first = input;
	}
	input = first; // set focus to the first of this composite fields
	}
	else if (colprop.type == 'select') {
	input = $('<select>')
	.addClass('ff_'+col)
	.attr('name', '_'+col+name_suffix)
	.appendTo(cell);

	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')
	.attr({title: this.get_label('delete'), rel: col})
	.html(this.env.delbutton)
	.click(function(){ ref.delete_edit_field(this); return false })
	.appendTo(cell);

	row.append(label).append(cell).appendTo(appendcontainer.show());
	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.delete_edit_field = function(elem)
	{
	var col = $(elem).attr('rel'),
	colprop = this.env.coltypes[col],
	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)
	$(elem).parent().children('input').val('').blur();
	else {
	$(elem).parents('div.row').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) {
	rcmail.set_busy(false, null, rcmail.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 + '&_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 win, url = {_form: 1, _action: 'search'}, target = window;

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

	this.location_href(url, target, true);

	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)
	{
	this.reset_add_input();

	var key = 'S'+id,
	link = $('<a>').attr('href', '#')
	.attr('rel', id)
	.click(function() { return rcmail.command('listsearch', id, this); })
	.html(name),
	li = $('<li>').attr({id: 'rcmli' + this.html_identifier(key), 'class': 'contactsearch'})
	.append(link),
	prop = {name:name, id:id, li:li[0]};

	this.add_saved_search_row(prop, li);
	this.select_folder('S'+id);
	this.enable_command('search-delete', true);
	this.env.search_id = id;

	this.triggerEvent('abook_search_insert', prop);
	};

	// add saved search row to the list, with sorting
	this.add_saved_search_row = function(prop, li, reloc)
	{
	var row, sibling, name = prop.name.toUpperCase();

	// When renaming groups, we need to remove it from DOM and insert it in the proper place
	if (reloc) {
	row = li.clone(true);
	li.remove();
	}
	else
	row = li;

	$('li[class~="contactsearch"]', this.gui_objects.folderlist).each(function(i, elem) {
	if (!sibling)
	sibling = this.previousSibling;

	if (name >= $(this).text().toUpperCase())
	sibling = elem;
	else
	return false;
	});

	if (sibling)
	row.insertAfter(sibling);
	else
	row.appendTo(this.gui_objects.folderlist);
	};

	// creates an input for saved search name
	this.search_create = function()
	{
	this.add_input_row('contactsearch');
	};

	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)
	{
	var li, key = 'S'+id;
	if ((li = this.get_folder_li(key))) {
	this.triggerEvent('search_delete', { id:id, li:li });

	li.parentNode.removeChild(li);
	}

	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 folder, lock = this.set_busy(true, 'searching');

	if (this.contact_list) {
	this.list_contacts_clear();
	}

	this.reset_qsearch();
	this.select_folder('S'+id);

	// reset vars
	this.env.current_page = 1;
	this.http_request('search', {_sid: id}, lock);
	};


	/*********************************************************/
	/******* user settings methods *******/
	/*********************************************************/

	// preferences section select and load options frame
	this.section_select = function(list)
	{
	var win, id = list.get_single_selection(), target = window,
	url = {_action: 'edit-prefs', _section: id};

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

	return true;
	};

	this.identity_select = function(list)
	{
	var id;
	if (id = list.get_single_selection()) {
	this.enable_command('delete', list.rowcount > 1 && this.env.identities_level < 2);
	this.load_identity(id, 'edit-identity');
	}
	};

	// load identity record
	this.load_identity = function(id, action)
	{
	if (action == 'edit-identity' && (!id \|\| id == this.env.iid))
	return false;

	var win, target = window,
	url = {_action: action, _iid: id};

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

	if (action && (id \|\| action == 'add-identity')) {
	this.set_busy(true);
	this.location_href(url, target);
	}

	return 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 (confirm(this.get_label('deleteidentityconfirm')))
	this.goto_url('delete-identity', { _iid: id, _token: this.env.request_token }, true);

	return true;
	};

	this.update_identity_row = function(id, name, add)
	{
	var row, col, list = this.identity_list,
	rid = this.html_identifier(id);

	if (list.rows[rid] && (row = list.rows[rid].obj)) {
	$(row.cells[0]).html(name);
	}
	else if (add) {
	row = $('<tr>').attr('id', 'rcmrow'+rid).get(0);
	col = $('<td>').addClass('mail').html(name).appendTo(row);
	list.insert_row(row);
	list.select(rid);
	}
	};


	/*********************************************************/
	/******* folder manager methods *******/
	/*********************************************************/

	this.init_subscription_list = function()
	{
	var p = this;
	this.subscription_list = new rcube_list_widget(this.gui_objects.subscriptionlist,
	{multiselect:false, draggable:true, keyboard:false, toggleselect:true});
	this.subscription_list.addEventListener('select', function(o){ p.subscription_select(o); });
	this.subscription_list.addEventListener('dragstart', function(o){ p.drag_active = true; });
	this.subscription_list.addEventListener('dragend', function(o){ p.subscription_move_folder(o); });
	this.subscription_list.row_init = function (row) {
	row.obj.onmouseover = function() { p.focus_subscription(row.id); };
	row.obj.onmouseout = function() { p.unfocus_subscription(row.id); };
	};
	this.subscription_list.init();
	$('#mailboxroot')
	.mouseover(function(){ p.focus_subscription(this.id); })
	.mouseout(function(){ p.unfocus_subscription(this.id); })
	};

	this.focus_subscription = function(id)
	{
	var row, folder,
	delim = RegExp.escape(this.env.delimiter),
	reg = RegExp('['+delim+']?[^'+delim+']+$');

	if (this.drag_active && this.env.mailbox && (row = document.getElementById(id)))
	if (this.env.subscriptionrows[id] &&
	(folder = this.env.subscriptionrows[id][0]) !== null
	) {
	if (this.check_droptarget(folder) &&
	!this.env.subscriptionrows[this.get_folder_row_id(this.env.mailbox)][2] &&
	(folder != this.env.mailbox.replace(reg, '')) &&
	(!folder.match(new RegExp('^'+RegExp.escape(this.env.mailbox+this.env.delimiter))))
	) {
	this.env.dstfolder = folder;
	$(row).addClass('droptarget');
	}
	}
	};

	this.unfocus_subscription = function(id)
	{
	var row = $('#'+id);

	this.env.dstfolder = null;
	if (this.env.subscriptionrows[id] && row[0])
	row.removeClass('droptarget');
	else
	$(this.subscription_list.frame).removeClass('droptarget');
	};

	this.subscription_select = function(list)
	{
	var id, folder;

	if (list && (id = list.get_single_selection()) &&
	(folder = this.env.subscriptionrows['rcmrow'+id])
	) {
	this.env.mailbox = folder[0];
	this.show_folder(folder[0]);
	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(list)
	{
	var delim = RegExp.escape(this.env.delimiter),
	reg = RegExp('['+delim+']?[^'+delim+']+$');

	if (this.env.mailbox && this.env.dstfolder !== null && (this.env.dstfolder != this.env.mailbox) &&
	(this.env.dstfolder != this.env.mailbox.replace(reg, ''))
	) {
	reg = new RegExp('[^'+delim+']*['+delim+']', 'g');
	var basename = this.env.mailbox.replace(reg, ''),
	newname = this.env.dstfolder === '' ? basename : this.env.dstfolder+this.env.delimiter+basename;

	if (newname != this.env.mailbox) {
	this.http_post('rename-folder', {_folder_oldname: this.env.mailbox, _folder_newname: newname}, this.set_busy(true, 'foldermoving'));
	this.subscription_list.draglayer.hide();
	}
	}
	this.drag_active = false;
	this.unfocus_subscription(this.get_folder_row_id(this.env.dstfolder));
	};

	// 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)
	{
	var id = this.get_folder_row_id(name ? name : this.env.mailbox),
	folder = this.env.subscriptionrows[id][0];

	if (folder && confirm(this.get_label('deletefolderconfirm'))) {
	var lock = this.set_busy(true, 'folderdeleting');
	this.http_post('delete-folder', {_mbox: folder}, lock);
	}
	};

	// Add folder row to the table and initialize it
	this.add_folder_row = function (name, display_name, is_protected, subscribed, skip_init, class_name)
	{
	if (!this.gui_objects.subscriptionlist)
	return false;

	var row, n, i, tmp, tmp_name, folders, rowid, list = [], slist = [],
	tbody = this.gui_objects.subscriptionlist.tBodies[0],
	refrow = $('tr', tbody).get(1),
	id = 'rcmrow'+((new Date).getTime());

	if (!refrow) {
	// Refresh page if we don't have a table row to clone
	this.goto_url('folders');
	return false;
	}

	// clone a table row if there are existing rows
	row = $(refrow).clone(true);

	// set ID, reset css class
	row.attr('id', id);
	row.attr('class', class_name);

	// set folder name
	row.find('td:first').html(display_name);

	// update subscription checkbox
	$('input[name="_subscribed[]"]', row).val(name)
	.prop({checked: subscribed ? true : false, disabled: is_protected ? true : false});

	// add to folder/row-ID map
	this.env.subscriptionrows[id] = [name, display_name, 0];

	// sort folders, to find a place where to insert the row
	folders = [];
	$.each(this.env.subscriptionrows, function(k,v){ folders.push(v) });
	folders.sort(function(a,b){ return a[0] < b[0] ? -1 : (a[0] > b[0] ? 1 : 0) });

	for (n in folders) {
	// protected folder
	if (folders[n][2]) {
	tmp_name = folders[n][0] + this.env.delimiter;
	// prefix namespace cannot have subfolders (#1488349)
	if (tmp_name == this.env.prefix_ns)
	continue;
	slist.push(folders[n][0]);
	tmp = tmp_name;
	}
	// protected folder's child
	else if (tmp && folders[n][0].indexOf(tmp) == 0)
	slist.push(folders[n][0]);
	// other
	else {
	list.push(folders[n][0]);
	tmp = null;
	}
	}

	// check if subfolder of a protected folder
	for (n=0; n<slist.length; n++) {
	if (name.indexOf(slist[n]+this.env.delimiter) == 0)
	rowid = this.get_folder_row_id(slist[n]);
	}

	// find folder position after sorting
	for (n=0; !rowid && n<list.length; n++) {
	if (n && list[n] == name)
	rowid = this.get_folder_row_id(list[n-1]);
	}

	// add row to the table
	if (rowid)
	$('#'+rowid).after(row);
	else
	row.appendTo(tbody);

	// update list widget
	this.subscription_list.clear_selection();
	if (!skip_init)
	this.init_subscription_list();

	row = row.get(0);
	if (row.scrollIntoView)
	row.scrollIntoView();

	return row;
	};

	// replace an existing table row with a new folder line (with subfolders)
	this.replace_folder_row = function(oldfolder, newfolder, display_name, is_protected, class_name)
	{
	if (!this.gui_objects.subscriptionlist)
	return false;

	var i, n, len, name, dispname, oldrow, tmprow, row, level,
	tbody = this.gui_objects.subscriptionlist.tBodies[0],
	folders = this.env.subscriptionrows,
	id = this.get_folder_row_id(oldfolder),
	regex = new RegExp('^'+RegExp.escape(oldfolder)),
	subscribed = $('input[name="_subscribed[]"]', $('#'+id)).prop('checked'),
	// find subfolders of renamed folder
	list = this.get_subfolders(oldfolder);

	// replace an existing table row
	this._remove_folder_row(id);
	row = $(this.add_folder_row(newfolder, display_name, is_protected, subscribed, true, class_name));

	// detect tree depth change
	if (len = list.length) {
	level = (oldfolder.split(this.env.delimiter)).length - (newfolder.split(this.env.delimiter)).length;
	}

	// move subfolders to the new branch
	for (n=0; n<len; n++) {
	id = list[n];
	name = this.env.subscriptionrows[id][0];
	dispname = this.env.subscriptionrows[id][1];
	oldrow = $('#'+id);
	tmprow = oldrow.clone(true);
	oldrow.remove();
	row.after(tmprow);
	row = tmprow;
	// update folder index
	name = name.replace(regex, newfolder);
	$('input[name="_subscribed[]"]', row).val(name);
	this.env.subscriptionrows[id][0] = name;
	// update the name if level is changed
	if (level != 0) {
	if (level > 0) {
	for (i=level; i>0; i--)
	dispname = dispname.replace(/^    /, '');
	}
	else {
	for (i=level; i<0; i++)
	dispname = '    ' + dispname;
	}
	row.find('td:first').html(dispname);
	this.env.subscriptionrows[id][1] = dispname;
	}
	}

	// update list widget
	this.init_subscription_list();
	};

	// remove the table row of a specific mailbox from the table
	this.remove_folder_row = function(folder, subs)
	{
	var n, len, list = [], id = this.get_folder_row_id(folder);

	// get subfolders if any
	if (subs)
	list = this.get_subfolders(folder);

	// remove old row
	this._remove_folder_row(id);

	// remove subfolders
	for (n=0, len=list.length; n<len; n++)
	this._remove_folder_row(list[n]);
	};

	this._remove_folder_row = function(id)
	{
	this.subscription_list.remove_row(id.replace(/^rcmrow/, ''));
	$('#'+id).remove();
	delete this.env.subscriptionrows[id];
	}

	this.get_subfolders = function(folder)
	{
	var name, list = [],
	regex = new RegExp('^'+RegExp.escape(folder)+RegExp.escape(this.env.delimiter)),
	row = $('#'+this.get_folder_row_id(folder)).get(0);

	while (row = row.nextSibling) {
	if (row.id) {
	name = this.env.subscriptionrows[row.id][0];
	if (regex.test(name)) {
	list.push(row.id);
	}
	else
	break;
	}
	}

	return list;
	}

	this.subscribe = function(folder)
	{
	if (folder) {
	var lock = this.display_message(this.get_label('foldersubscribing'), 'loading');
	this.http_post('subscribe', {_mbox: folder}, lock);
	}
	};

	this.unsubscribe = function(folder)
	{
	if (folder) {
	var lock = this.display_message(this.get_label('folderunsubscribing'), 'loading');
	this.http_post('unsubscribe', {_mbox: folder}, lock);
	}
	};

	// helper method to find a specific mailbox row ID
	this.get_folder_row_id = function(folder)
	{
	var id, folders = this.env.subscriptionrows;
	for (id in folders)
	if (folders[id] && folders[id][0] == folder)
	break;

	return id;
	};

	// when user select a folder in manager
	this.show_folder = function(folder, path, force)
	{
	var win, target = window,
	url = '&_action=edit-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 id = this.get_folder_row_id(folder);
	if (id)
	$('input[name="_subscribed[]"]', $('#'+id)).prop('disabled', true);
	};

	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);
	};


	/*********************************************************/
	/******* GUI functionality *******/
	/*********************************************************/

	var 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 rcmail.button_sel(this._command, this._id); };
	elm.onmouseup = function(e){ return rcmail.button_out(this._command, this._id); };
	if (preload)
	new Image().src = prop.sel;
	}
	if (prop.over) {
	elm.onmouseover = function(e){ return rcmail.button_over(this._command, this._id); };
	elm.onmouseout = function(e){ return rcmail.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++) {
	init_button(cmd, this.buttons[cmd][i]);
	}
	}

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

	// 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)
	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);

	// set image according to button state
	if (button.type == 'image' && button[state]) {
	button.status = state;
	obj.src = button[state];
	}
	// set class name according to button state
	else if (button[state] !== undefined) {
	button.status = state;
	obj.className = button[state];
	}
	// disable/enable input buttons
	if (button.type == 'input') {
	button.status = state;
	obj.disabled = !state;
	}
	}
	};

	// display a specific alttext
	this.set_alttext = function(command, label)
	{
	var n, button, obj, link, 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 (button.type == 'image' && obj) {
	obj.setAttribute('alt', this.get_label(label));
	if ((link = obj.parentNode) && link.tagName.toLowerCase() == 'a')
	link.setAttribute('title', this.get_label(label));
	}
	else if (obj)
	obj.setAttribute('title', this.get_label(label));
	}
	};

	// mouse over button
	this.button_over = function(command, id)
	{
	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') {
	obj = document.getElementById(button.id);
	if (obj && button.over) {
	if (button.type == 'image')
	obj.src = button.over;
	else
	obj.className = button.over;
	}
	}
	}
	};

	// mouse down on button
	this.button_sel = function(command, id)
	{
	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') {
	obj = document.getElementById(button.id);
	if (obj && button.sel) {
	if (button.type == 'image')
	obj.src = button.sel;
	else
	obj.className = button.sel;
	}
	this.buttons_sel[id] = command;
	}
	}
	};

	// mouse out of button
	this.button_out = function(command, id)
	{
	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') {
	obj = document.getElementById(button.id);
	if (obj && button.act) {
	if (button.type == 'image')
	obj.src = button.act;
	else
	obj.className = button.act;
	}
	}
	}
	};

	// 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)
	{
	// 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];
	return false;
	}

	type = type ? type : 'notice';

	var ref = this,
	key = this.html_identifier(msg),
	date = new Date(),
	id = type + date.getTime();

	if (!timeout)
	timeout = this.message_time * (type == 'error' \|\| type == 'warning' ? 2 : 1);

	if (type == 'loading') {
	key = 'loading';
	timeout = this.env.request_timeout * 1000;
	if (!msg)
	msg = this.get_label('loading');
	}

	// The same message is already displayed
	if (this.messages[key]) {
	// replace label
	if (this.messages[key].obj)
	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).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 {
	obj.click(function() { return ref.hide_message(obj); });
	}

	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 disapear
	this.hide_message = function(obj, fade)
	{
	// pass command to parent window
	if (this.is_framed())
	return parent.rcmail.hide_message(obj, fade);

	var k, n, i, msg, m = this.messages;

	// Hide message by object, don't use for 'loading'!
	if (typeof obj === 'object') {
	$(obj)[fade?'fadeOut':'hide']();
	msg = $(obj).data('key');
	if (this.messages[msg])
	delete this.messages[msg];
	}
	// 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) {
	m[k].obj[fade?'fadeOut':'hide']();
	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 {
	msg = m[k].labels[i].msg;
	}
	m[k].obj.html(msg);
	}
	}
	}
	}
	}
	}
	};

	// 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)
	m[k].obj.hide();

	this.messages = {};
	};

	// open a jquery UI dialog with the given content
	this.show_popup_dialog = function(html, title)
	{
	// forward call to parent window
	if (this.is_framed()) {
	parent.rcmail.show_popup_dialog(html, title);
	return;
	}

	var popup = $('<div class="popup">')
	.html(html)
	.dialog({
	title: title,
	modal: true,
	resizable: true,
	width: 580,
	close: function(event, ui) { $(this).remove() }
	});

	// resize and center popup
	var win = $(window), w = win.width(), h = win.height(),
	width = popup.width(), height = popup.height();
	popup.dialog('option', { height: Math.min(h-40, height+50), width: Math.min(w-20, width+50) })
	.dialog('option', 'position', ['center', 'center']); // only works in a separate call (!?)
	};

	// 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));
	};

	// mark a mailbox as selected and set environment variable
	this.select_folder = function(name, prefix, encode)
	{
	if (this.gui_objects.folderlist) {
	var current_li, target_li;

	if ((current_li = $('li.selected', this.gui_objects.folderlist))) {
	current_li.removeClass('selected').addClass('unfocused');
	}
	if ((target_li = this.get_folder_li(name, prefix, encode))) {
	$(target_li).removeClass('unfocused').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);
	};

	// 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);
	};

	// 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);
	}

	return null;
	};

	// for reordering column array (Konqueror workaround)
	// and for setting some message list global variables
	this.set_message_coltypes = function(coltypes, repl, smart_col)
	{
	var list = this.message_list,
	thead = list ? list.list.tHead : null,
	cell, col, n, len, th, tr;

	this.env.coltypes = coltypes;

	// replace old column headers
	if (thead) {
	if (repl) {
	th = document.createElement('thead');
	tr = document.createElement('tr');

	for (c=0, len=repl.length; c < len; c++) {
	cell = document.createElement('td');
	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);
	}
	th.appendChild(tr);
	thead.parentNode.replaceChild(th, thead);
	thead = th;
	}

	for (n=0, len=this.env.coltypes.length; n<len; n++) {
	col = this.env.coltypes[n];
	if ((cell = thead.rows[0].cells[n]) && (col == 'from' \|\| col == 'to' \|\| col == 'fromto')) {
	cell.id = 'rcm'+col;
	$('span,a', cell).text(this.get_label(col == 'fromto' ? smart_col : col));
	// if we have links for sorting, it's a bit more complicated...
	$('a', cell).click(function(){
	return rcmail.command('sort', this.id.replace(/^rcm/, ''), this);
	});
	}
	}
	}

	this.env.subject_col = null;
	this.env.flagged_col = null;
	this.env.status_col = null;

	if ((n = $.inArray('subject', this.env.coltypes)) >= 0) {
	this.env.subject_col = n;
	if (list)
	list.subject_col = n;
	}
	if ((n = $.inArray('flag', this.env.coltypes)) >= 0)
	this.env.flagged_col = n;
	if ((n = $.inArray('status', this.env.coltypes)) >= 0)
	this.env.status_col = n;

	if (list)
	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).html(content.percent+'%').attr('title', content.title);

	this.triggerEvent('setquota', content);
	this.env.quota_content = content;
	};

	// 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);
	};

	// 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 = $('<span>').addClass('unreadcount').appendTo(link);
	reg = /\s+$[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.indexOf(mbox + this.env.delimiter) == 0)
	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_row && 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() { rcmail.command('hide-headers', '', elem); };

	// fetch headers only once
	if (!this.gui_objects.all_headers_box.innerHTML) {
	var lock = this.display_message(this.get_label('loading'), 'loading');
	this.http_post('headers', {_uid: this.env.uid}, lock);
	}
	};

	// 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() { rcmail.command('show-headers', '', elem); };
	};


	/********************************************************/
	/******* html to text conversion functions *******/
	/********************************************************/

	this.html2plain = function(htmlText, id)
	{
	var rcmail = this,
	url = '?_task=utils&_action=html2text',
	lock = this.set_busy(true, 'converting');

	this.log('HTTP POST: ' + url);

	$.ajax({ type: 'POST', url: url, data: htmlText, contentType: 'application/octet-stream',
	error: function(o, status, err) { rcmail.http_error(o, status, err, lock); },
	success: function(data) { rcmail.set_busy(false, null, lock); $('#'+id).val(data); rcmail.log(data); }
	});
	};

	this.plain2html = function(plain, id)
	{
	var lock = this.set_busy(true, 'converting');

	plain = plain.replace(/&/g, '&').replace(/</g, '<').replace(/>/g, '>');
	$('#'+id).val(plain ? '<pre>'+plain+'</pre>' : '');

	this.set_busy(false, null, lock);
	};


	/********************************************************/
	/******* 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
	query._action = this.env.action;

	var base = this.env.comm_path, k, param = {};

	// overwrite task name
	if (query._action.match(/([a-z]+)\/([a-z0-9-_.]+)/)) {
	query._action = RegExp.$2;
	base = base.replace(/\_task=[a-z]+/, '_task='+RegExp.$1);
	}

	// remove undefined values
	for (k in query) {
	if (query[k] !== undefined && query[k] !== null)
	param[k] = query[k];
	}

	return base + '&' + $.param(param) + querystring;
	};

	this.redirect = function(url, lock)
	{
	if (lock \|\| lock === null)
	this.set_busy(true);

	if (this.is_framed()) {
	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)
	{
	this.redirect(this.url(action, query));
	};

	this.location_href = function(url, target, frame)
	{
	if (frame)
	this.lock_frame();

	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();
	};

	// send a http request to the server
	this.http_request = function(action, query, lock)
	{
	var url = this.url(action, query);

	// trigger plugin hook
	var result = this.triggerEvent('request'+action, query);

	if (result !== undefined) {
	// abort if one the handlers returned false
	if (result === false)
	return false;
	else
	query = result;
	}

	url += '&_remote=1';

	// send request
	this.log('HTTP GET: ' + url);

	return $.ajax({
	type: 'GET', url: url, data: { _unlock:(lock?lock:0) }, dataType: 'json',
	success: function(data){ ref.http_response(data); },
	error: function(o, status, err) { ref.http_error(o, status, err, lock, action); }
	});

	// reset keep-alive interval
	this.start_keepalive();
	};

	// send a http POST request to the server
	this.http_post = function(action, postdata, lock)
	{
	var url = this.url(action);

	if (postdata && typeof postdata === 'object') {
	postdata._remote = 1;
	postdata._unlock = (lock ? lock : 0);
	}
	else
	postdata += (postdata ? '&' : '') + '_remote=1' + (lock ? '&_unlock='+lock : '');

	// trigger plugin hook
	var result = this.triggerEvent('request'+action, postdata);
	if (result !== undefined) {
	- // abort if one the handlers returned false
	+ // abort if one of the handlers returned false
	if (result === false)
	return false;
	else
	postdata = result;
	}

	// send request
	this.log('HTTP POST: ' + url);

	return $.ajax({
	type: 'POST', url: url, data: postdata, dataType: 'json',
	success: function(data){ ref.http_response(data); },
	error: function(o, status, err) { ref.http_error(o, status, err, lock, action); }
	});

	// reset keep-alive interval
	this.start_keepalive();
	};

	// 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);

	this.triggerEvent('responsebefore', {response: response});
	this.triggerEvent('responsebefore'+response.action, {response: response});

	// set env vars
	if (response.env)
	this.set_env(response.env);

	// we have labels to add
	if (typeof response.texts === 'object') {
	for (var name in response.texts)
	if (typeof response.texts[name] === 'string')
	this.add_label(name, response.texts[name]);
	}

	// if we get javascript code from server -> execute it
	if (response.exec) {
	this.log(response.exec);
	eval(response.exec);
	}

	// execute callback functions of plugins
	if (response.callbacks && response.callbacks.length) {
	for (var 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 '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('compose', (uid && this.contact_list.rows[uid]));
	this.enable_command('delete', 'edit', writable);
	this.enable_command('export', (this.contact_list && this.contact_list.rowcount > 0));
	}

	case 'moveto':
	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', { folder:this.env.source, rowcount:this.contact_list.rowcount });
	}

	case 'purge':
	case 'expunge':
	if (this.task == 'mail') {
	if (!this.env.messagecount) {
	// 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', { folder:this.env.mailbox, rowcount:this.message_list.rowcount });
	}
	break;

	+ case 'refresh':
	case 'check-recent':
	case 'getunread':
	case 'search':
	this.env.qsearch = null;
	case 'list':
	if (this.task == 'mail') {
	this.enable_command('show', 'expunge', 'select-all', 'select-none', (this.env.messagecount > 0));
	this.enable_command('purge', this.purge_mailbox_test());
	this.enable_command('expand-all', 'expand-unread', 'collapse-all', this.env.threading && this.env.messagecount);

	if ((response.action == 'list' \|\| response.action == 'search') && this.message_list) {
	this.msglist_select(this.message_list);
	this.triggerEvent('listupdate', { folder:this.env.mailbox, rowcount:this.message_list.rowcount });
	}
	}
	else if (this.task == 'addressbook') {
	this.enable_command('export', (this.contact_list && this.contact_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();
	this.triggerEvent('listupdate', { folder:this.env.source, 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(this.get_label('requesttimedout'), 'error');
	else if (request.status == 0 && status != 'abort')
	this.display_message(this.get_label('servererror') + ' (No connection)', 'error');

	// re-send keep-alive requests after 30 seconds
	if (action == 'keep-alive')
	setTimeout(function(){ ref.keep_alive(); ref.start_keepalive(); }, 30000);
	};

	// post the given form to a hidden iframe
	this.async_upload_form = function(form, action, onload)
	{
	var ts = new Date().getTime(),
	frame_name = 'rcmupload'+ts;

	// upload progress support
	if (this.env.upload_progress_name) {
	var fname = this.env.upload_progress_name,
	field = $('input[name='+fname+']', form);

	if (!field.length) {
	field = $('<input>').attr({type: 'hidden', name: fname});
	field.prependTo(form);
	}

	field.val(ts);
	}

	// have to do it this way for IE
	// otherwise the form will be posted to a new window
	if (document.all) {
	var html = '<iframe name="'+frame_name+'" src="program/resources/blank.gif" style="width:0;height:0;visibility:hidden;"></iframe>';
	document.body.insertAdjacentHTML('BeforeEnd', html);
	}
	else { // for standards-compilant browsers
	var frame = document.createElement('iframe');
	frame.name = frame_name;
	frame.style.border = 'none';
	frame.style.width = 0;
	frame.style.height = 0;
	frame.style.visibility = 'hidden';
	document.body.appendChild(frame);
	}

	// handle upload errors, parsing iframe content in onload
	$(frame_name).bind('load', {ts:ts}, onload);

	$(form).attr({
	target: frame_name,
	action: this.url(action, { _id:this.env.compose_id\|\|'', _uploadid:ts }),
	method: 'POST'})
	.attr(form.encoding ? 'encoding' : 'enctype', 'multipart/form-data')
	.submit();

	return frame_name;
	};

	// html5 file-drop API
	this.document_drag_hover = function(e, over)
	{
	e.preventDefault();
	$(ref.gui_objects.filedrop)[(over?'addClass':'removeClass')]('active');
	};

	this.file_drag_hover = function(e, over)
	{
	e.preventDefault();
	e.stopPropagation();
	$(ref.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 files = e.target.files \|\| e.dataTransfer.files,
	formdata = window.FormData ? new FormData() : null,
	fieldname = (this.env.filedrop.fieldname \|\| '_file') + (this.env.filedrop.single ? '' : '[]'),
	boundary = '------multipartformboundary' + (new Date).getTime(),
	dashdash = '--', crlf = '\r\n',
	multipart = dashdash + boundary + crlf;

	if (!files \|\| !files.length)
	return;

	// inline function to submit the files to the server
	var submit_data = function() {
	var multiple = files.length > 1,
	ts = new Date().getTime(),
	content = '<span>' + (multiple ? ref.get_label('uploadingmany') : files[0].name) + '</span>';

	// add to attachments list
	if (!ref.add2attachment_list(ts, { name:'', html:content, classname:'uploading', complete:false }))
	ref.file_upload_id = ref.set_busy(true, 'uploading');

	// complete multipart content and post request
	multipart += dashdash + boundary + dashdash + crlf;

	$.ajax({
	type: 'POST',
	dataType: 'json',
	url: ref.url(ref.env.filedrop.action\|\|'upload', { _id:ref.env.compose_id\|\|ref.env.cid\|\|'', _uploadid:ts, _remote:1 }),
	contentType: formdata ? false : 'multipart/form-data; boundary=' + boundary,
	processData: false,
	data: formdata \|\| multipart,
	headers: {'X-Roundcube-Request': ref.env.request_token},
	beforeSend: function(xhr, s) { if (!formdata && xhr.sendAsBinary) xhr.send = xhr.sendAsBinary; },
	success: function(data){ ref.http_response(data); },
	error: function(o, status, err) { ref.http_error(o, status, err, null, 'attachment'); }
	});
	};

	// get contents of all dropped files
	var last = this.env.filedrop.single ? 0 : files.length - 1;
	for (var j=0, i=0, f; j <= last && (f = files[i]); i++) {
	if (!f.name) f.name = f.fileName;
	if (!f.size) f.size = f.fileSize;
	if (!f.type) f.type = 'application/octet-stream';

	// file name contains non-ASCII characters, do UTF8-binary string conversion.
	if (!formdata && /[^\x20-\x7E]/.test(f.name))
	f.name_bin = unescape(encodeURIComponent(f.name));

	// filter by file type if requested
	if (this.env.filedrop.filter && !f.type.match(new RegExp(this.env.filedrop.filter))) {
	// TODO: show message to user
	continue;
	}

	// do it the easy way with FormData (FF 4+, Chrome 5+, Safari 5+)
	if (formdata) {
	formdata.append(fieldname, f);
	if (j == last)
	return submit_data();
	}
	// use FileReader supporetd by Firefox 3.6
	else if (window.FileReader) {
	var reader = new FileReader();

	// closure to pass file properties to async callback function
	reader.onload = (function(file, j) {
	return function(e) {
	multipart += 'Content-Disposition: form-data; name="' + fieldname + '"';
	multipart += '; filename="' + (f.name_bin \|\| file.name) + '"' + crlf;
	multipart += 'Content-Length: ' + file.size + crlf;
	multipart += 'Content-Type: ' + file.type + crlf + crlf;
	multipart += e.target.result + crlf;
	multipart += dashdash + boundary + crlf;

	if (j == last) // we're done, submit the data
	return submit_data();
	}
	})(f,j);
	reader.readAsBinaryString(f);
	}
	// Firefox 3
	else if (f.getAsBinary) {
	multipart += 'Content-Disposition: form-data; name="' + fieldname + '"';
	multipart += '; filename="' + (f.name_bin \|\| f.name) + '"' + crlf;
	multipart += 'Content-Length: ' + f.size + crlf;
	multipart += 'Content-Type: ' + f.type + crlf + crlf;
	multipart += f.getAsBinary() + crlf;
	multipart += dashdash + boundary +crlf;

	if (j == last)
	return submit_data();
	}

	j++;
	}
	};

	// starts interval for keep-alive signal
	this.start_keepalive = function()
	{
	- if (!this.env.session_lifetime \|\| this.env.framed \|\| this.task == 'login' \|\| this.env.action == 'print')
	+ if (!this.env.session_lifetime \|\| this.env.framed \|\| this.env.extwin \|\| this.task == 'login' \|\| this.env.action == 'print')
	return;

	- if (this._int)
	- clearInterval(this._int);
	+ if (this._keepalive)
	+ clearInterval(this._keepalive);

	- this._int = setInterval(function(){ ref.keep_alive(); }, this.env.session_lifetime * 0.5 * 1000);
	+ this._keepalive = setInterval(function(){ ref.keep_alive(); }, this.env.session_lifetime * 0.5 * 1000);
	+ };
	+
	+ // starts interval for refresh signal
	+ this.start_refresh = function()
	+ {
	+ if (!this.env.keep_alive \|\| 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.keep_alive * 1000);
	};

	// sends keep-alive signal
	this.keep_alive = function()
	{
	if (!this.busy)
	this.http_request('keep-alive');
	};

	- // sends request to check for recent messages
	- this.check_for_recent = function(refresh)
	+ // sends refresh signal
	+ this.refresh = function()
	{
	- if (this.busy)
	+ if (this.busy) {
	+ // try again after 10 seconds
	+ setTimeout(function(){ ref.refresh(); ref.start_refresh(); }, 10000);
	return;
	+ }

	- var lock, url = {_mbox: this.env.mailbox};
	+ var params = {}, lock = this.set_busy(true, 'refreshing');

	- if (refresh) {
	- lock = this.set_busy(true, 'checkingmail');
	- url._refresh = 1;
	- }
	+ if (this.task == 'mail' && this.gui_objects.mailboxlist)
	+ params = this.check_recent_params();
	+
	+ // plugins should bind to 'requestrefresh' event to add own params
	+ this.http_request('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.messagelist)
	- url._list = 1;
	+ params._list = 1;
	if (this.gui_objects.quotadisplay)
	- url._quota = 1;
	+ params._quota = 1;
	if (this.env.search_request)
	- url._search = this.env.search_request;
	+ params._search = this.env.search_request;

	- this.http_request('check-recent', url, lock);
	+ return params;
	};


	/********************************************************/
	/******* helper methods *******/
	/********************************************************/

	// check if we're in show mode or if we have a unique selection
	// and return the message uid
	this.get_single_uid = function()
	{
	return this.env.uid ? this.env.uid : (this.message_list ? this.message_list.get_single_selection() : null);
	};

	// same as above but for contacts
	this.get_single_cid = function()
	{
	return this.env.cid ? this.env.cid : (this.contact_list ? this.contact_list.get_single_selection() : null);
	};

	// gets cursor position
	this.get_caret_pos = function(obj)
	{
	if (obj.selectionEnd !== undefined)
	return obj.selectionEnd;
	else if (document.selection && document.selection.createRange) {
	var range = document.selection.createRange();
	if (range.parentElement() != obj)
	return 0;

	var gm = range.duplicate();
	if (obj.tagName == 'TEXTAREA')
	gm.moveToElementText(obj);
	else
	gm.expand('textedit');

	gm.setEndPoint('EndToStart', range);
	var p = gm.text.length;

	return p<=obj.value.length ? p : -1;
	}
	else
	return obj.value.length;
	};

	// moves cursor to specified position
	this.set_caret_pos = function(obj, pos)
	{
	if (obj.setSelectionRange)
	obj.setSelectionRange(pos, pos);
	else if (obj.createTextRange) {
	var range = obj.createTextRange();
	range.collapse(true);
	range.moveEnd('character', pos);
	range.moveStart('character', pos);
	range.select();
	}
	};

	// disable/enable all fields of a form
	this.lock_form = function(form, lock)
	{
	if (!form \|\| !form.elements)
	return;

	var n, len, elm;

	if (lock)
	this.disabled_form_elements = [];

	for (n=0, len=form.elements.length; n<len; n++) {
	elm = form.elements[n];

	if (elm.type == 'hidden')
	continue;
	// remember which elem was disabled before lock
	if (lock && elm.disabled)
	this.disabled_form_elements.push(elm);
	// check this.disabled_form_elements before inArray() as a workaround for FF5 bug
	// http://bugs.jquery.com/ticket/9873
	else if (lock \|\| (this.disabled_form_elements && $.inArray(elm, this.disabled_form_elements)<0))
	elm.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.check_protocol_handler = function(name, elem)
	{
	var nav = window.navigator;
	if (!nav
	\|\| (typeof nav.registerProtocolHandler != 'function')
	\|\| ((typeof nav.isProtocolHandlerRegistered == 'function')
	&& nav.isProtocolHandlerRegistered('mailto', this.mailto_handler_uri()) == 'registered')
	)
	$(elem).addClass('disabled');
	else
	$(elem).click(function() { rcmail.register_protocol_handler(name); return false; });
	};

	// Checks browser capabilities eg. PDF support, TIF support
	this.browser_capabilities_check = function()
	{
	if (!this.env.browser_capabilities)
	this.env.browser_capabilities = {};

	if (this.env.browser_capabilities.pdf === undefined)
	this.env.browser_capabilities.pdf = this.pdf_support_check();

	if (this.env.browser_capabilities.flash === undefined)
	this.env.browser_capabilities.flash = this.flash_support_check();

	if (this.env.browser_capabilities.tif === undefined)
	this.tif_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.tif_support_check = function()
	{
	var img = new Image();

	img.onload = function() { rcmail.env.browser_capabilities.tif = 1; };
	img.onerror = function() { rcmail.env.browser_capabilities.tif = 0; };
	img.src = 'program/resources/blank.tif';
	};

	this.pdf_support_check = function()
	{
	var 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 (window.ActiveXObject) {
	try {
	if (axObj = new ActiveXObject("AcroPDF.PDF"))
	return 1;
	}
	catch (e) {}
	try {
	if (axObj = 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;
	}

	return 0;
	};

	this.flash_support_check = function()
	{
	var plugin = navigator.mimeTypes ? navigator.mimeTypes["application/x-shockwave-flash"] : {};

	if (plugin && plugin.enabledPlugin)
	return 1;

	if (window.ActiveXObject) {
	try {
	if (axObj = new ActiveXObject("ShockwaveFlash.ShockwaveFlash"))
	return 1;
	}
	catch (e) {}
	}

	return 0;
	};

	// Cookie setter
	this.set_cookie = function(name, value, expires)
	{
	setCookie(name, value, expires, this.env.cookie_path, this.env.cookie_domain, this.env.cookie_secure);
	}

	} // end object rcube_webmail


	// some static methods
	rcube_webmail.long_subject_title = function(elem, indent)
	{
	if (!elem.title) {
	var $elem = $(elem);
	if ($elem.width() + indent * 15 > $elem.parent().width())
	elem.title = $elem.html();
	}
	};

	rcube_webmail.long_subject_title_ie = function(elem, indent)
	{
	if (!elem.title) {
	var $elem = $(elem),
	txt = $.trim($elem.text()),
	tmp = $('<span>').text(txt)
	.css({'position': 'absolute', 'float': 'left', 'visibility': 'hidden',
	'font-size': $elem.css('font-size'), 'font-weight': $elem.css('font-weight')})
	.appendTo($('body')),
	w = tmp.width();

	tmp.remove();
	if (w + indent * 15 > $elem.width())
	elem.title = txt;
	}
	};

	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;
	diff --git a/program/localization/en_US/messages.inc b/program/localization/en_US/messages.inc
	index cabc9998b..a858d0acf 100644
	--- a/program/localization/en_US/messages.inc
	+++ b/program/localization/en_US/messages.inc
	@@ -1,170 +1,171 @@
	<?php

	/*

	+-----------------------------------------------------------------------+
	\| language/en_US/messages.inc \|
	\| \|
	\| Language file of the Roundcube Webmail client \|
	\| Copyright (C) 2005-2010, The Roundcube Dev Team \|
	\| \|
	\| Licensed under the GNU General Public License version 3 or \|
	\| any later version with exceptions for skins & plugins. \|
	\| See the README file for a full license statement. \|
	\| \|
	+-----------------------------------------------------------------------+
	\| Author: Thomas Bruederli <roundcube@gmail.com> \|
	+-----------------------------------------------------------------------+

	@version $Id$

	*/

	$messages = array();
	$messages['errortitle'] = 'An error occurred!';
	$messages['loginfailed'] = 'Login failed.';
	$messages['cookiesdisabled'] = 'Your browser does not accept cookies.';
	$messages['sessionerror'] = 'Your session is invalid or expired.';
	$messages['storageerror'] = 'Connection to storage server failed.';
	$messages['servererror'] = 'Server Error!';
	$messages['servererrormsg'] = 'Server Error: $msg';
	$messages['dberror'] = 'Database Error!';
	$messages['requesttimedout'] = 'Request timed out';
	$messages['errorreadonly'] = 'Unable to perform operation. Folder is read-only.';
	$messages['errornoperm'] = 'Unable to perform operation. Permission denied.';
	$messages['invalidrequest'] = 'Invalid request! No data was saved.';
	$messages['invalidhost'] = 'Invalid server name.';
	$messages['nomessagesfound'] = 'No messages found in this mailbox.';
	$messages['loggedout'] = 'You have successfully terminated the session. Good bye!';
	$messages['mailboxempty'] = 'Mailbox is empty.';
	+$messages['refreshing'] = 'Refreshing...';
	$messages['loading'] = 'Loading...';
	$messages['uploading'] = 'Uploading file...';
	$messages['uploadingmany'] = 'Uploading files...';
	$messages['loadingdata'] = 'Loading data...';
	$messages['checkingmail'] = 'Checking for new messages...';
	$messages['sendingmessage'] = 'Sending message...';
	$messages['messagesent'] = 'Message sent successfully.';
	$messages['savingmessage'] = 'Saving message...';
	$messages['messagesaved'] = 'Message saved to Drafts.';
	$messages['successfullysaved'] = 'Successfully saved.';
	$messages['addedsuccessfully'] = 'Contact added successfully to address book.';
	$messages['contactexists'] = 'A contact with the same e-mail address already exists.';
	$messages['contactnameexists'] = 'A contact with the same name already exists.';
	$messages['blockedimages'] = 'To protect your privacy, remote images are blocked in this message.';
	$messages['encryptedmessage'] = 'This is an encrypted message and can not be displayed. Sorry!';
	$messages['nocontactsfound'] = 'No contacts found.';
	$messages['contactnotfound'] = 'The requested contact was not found.';
	$messages['contactsearchonly'] = 'Enter some search terms to find contacts';
	$messages['sendingfailed'] = 'Failed to send message.';
	$messages['senttooquickly'] = 'Please wait $sec sec(s). before sending this message.';
	$messages['errorsavingsent'] = 'An error occured while saving sent message.';
	$messages['errorsaving'] = 'An error occured while saving.';
	$messages['errormoving'] = 'Could not move the message(s).';
	$messages['errorcopying'] = 'Could not copy the message(s).';
	$messages['errordeleting'] = 'Could not delete the message(s).';
	$messages['errormarking'] = 'Could not mark the message(s).';
	$messages['deletecontactconfirm'] = 'Do you really want to delete selected contact(s)?';
	$messages['deletegroupconfirm'] = 'Do you really want to delete selected group?';
	$messages['deletemessagesconfirm'] = 'Do you really want to delete selected message(s)?';
	$messages['deletefolderconfirm'] = 'Do you really want to delete this folder?';
	$messages['purgefolderconfirm'] = 'Do you really want to delete all messages in this folder?';
	$messages['contactdeleting'] = 'Deleting contact(s)...';
	$messages['groupdeleting'] = 'Deleting group...';
	$messages['folderdeleting'] = 'Deleting folder...';
	$messages['foldermoving'] = 'Moving folder...';
	$messages['foldersubscribing'] = 'Subscribing folder...';
	$messages['folderunsubscribing'] = 'Unsubscribing folder...';
	$messages['formincomplete'] = 'The form was not completely filled out.';
	$messages['noemailwarning'] = 'Please enter a valid email address.';
	$messages['nonamewarning'] = 'Please enter a name.';
	$messages['nopagesizewarning'] = 'Please enter a page size.';
	$messages['nosenderwarning'] = 'Please enter sender e-mail address.';
	$messages['norecipientwarning'] = 'Please enter at least one recipient.';
	$messages['nosubjectwarning'] = 'The "Subject" field is empty. Would you like to enter one now?';
	$messages['nobodywarning'] = 'Send this message without text?';
	$messages['notsentwarning'] = 'Message has not been sent. Do you want to discard your message?';
	$messages['noldapserver'] = 'Please select an ldap server to search.';
	$messages['nosearchname'] = 'Please enter a contact name or email address.';
	$messages['notuploadedwarning'] = 'Not all attachments have been uploaded yet. Please wait or cancel the upload.';
	$messages['searchsuccessful'] = '$nr messages found.';
	$messages['contactsearchsuccessful'] = '$nr contacts found.';
	$messages['searchnomatch'] = 'Search returned no matches.';
	$messages['searching'] = 'Searching...';
	$messages['checking'] = 'Checking...';
	$messages['nospellerrors'] = 'No spelling errors found.';
	$messages['folderdeleted'] = 'Folder successfully deleted.';
	$messages['foldersubscribed'] = 'Folder successfully subscribed.';
	$messages['folderunsubscribed'] = 'Folder successfully unsubscribed.';
	$messages['folderpurged'] = 'Folder has successfully been emptied.';
	$messages['folderexpunged'] = 'Folder has successfully been compacted.';
	$messages['deletedsuccessfully'] = 'Successfully deleted.';
	$messages['converting'] = 'Removing formatting...';
	$messages['messageopenerror'] = 'Could not load message from server.';
	$messages['fileuploaderror'] = 'File upload failed.';
	$messages['filesizeerror'] = 'The uploaded file exceeds the maximum size of $size.';
	$messages['copysuccess'] = 'Successfully copied $nr addresses.';
	$messages['copyerror'] = 'Could not copy any addresses.';
	$messages['sourceisreadonly'] = 'This address source is read only.';
	$messages['errorsavingcontact'] = 'Could not save the contact address.';
	$messages['movingmessage'] = 'Moving message(s)...';
	$messages['copyingmessage'] = 'Copying message(s)...';
	$messages['copyingcontact'] = 'Copying contact(s)...';
	$messages['deletingmessage'] = 'Deleting message(s)...';
	$messages['markingmessage'] = 'Marking message(s)...';
	$messages['addingmember'] = 'Adding contact(s) to the group...';
	$messages['removingmember'] = 'Removing contact(s) from the group...';
	$messages['receiptsent'] = 'Successfully sent a read receipt.';
	$messages['errorsendingreceipt'] = 'Could not send the receipt.';
	$messages['deleteidentityconfirm'] = 'Do you really want to delete this identity?';
	$messages['nodeletelastidentity'] = 'You cannot delete this identity, it\'s your last one.';
	$messages['forbiddencharacter'] = 'Folder name contains a forbidden character.';
	$messages['selectimportfile'] = 'Please select a file to upload.';
	$messages['addresswriterror'] = 'The selected address book is not writeable.';
	$messages['contactaddedtogroup'] = 'Successfully added the contacts to this group.';
	$messages['contactremovedfromgroup'] = 'Successfully removed contacts from this group.';
	$messages['nogroupassignmentschanged'] = 'No group assignments changed.';
	$messages['importwait'] = 'Importing, please wait...';
	$messages['importerror'] = 'Import failed! The uploaded file is not a valid vCard file.';
	$messages['importconfirm'] = '<b>Successfully imported $inserted contacts</b>';
	$messages['importconfirmskipped'] = '<b>Skipped $skipped existing entries</b>';
	$messages['opnotpermitted'] = 'Operation not permitted!';
	$messages['nofromaddress'] = 'Missing e-mail address in selected identity.';
	$messages['editorwarning'] = 'Switching to the plain text editor will cause all text formatting to be lost. Do you wish to continue?';
	$messages['httpreceivedencrypterror'] = 'A fatal configuration error occurred. Contact your administrator immediately. <b>Your message can not be sent.</b>';
	$messages['smtpconnerror'] = 'SMTP Error ($code): Connection to server failed.';
	$messages['smtpautherror'] = 'SMTP Error ($code): Authentication failed.';
	$messages['smtpfromerror'] = 'SMTP Error ($code): Failed to set sender "$from" ($msg).';
	$messages['smtptoerror'] = 'SMTP Error ($code): Failed to add recipient "$to" ($msg).';
	$messages['smtprecipientserror'] = 'SMTP Error: Unable to parse recipients list.';
	$messages['smtperror'] = 'SMTP Error: $msg';
	$messages['emailformaterror'] = 'Invalid e-mail address: $email';
	$messages['toomanyrecipients'] = 'Too many recipients. Reduce the number of recipients to $max.';
	$messages['maxgroupmembersreached'] = 'The number of group members exceeds the maximum of $max.';
	$messages['internalerror'] = 'An internal error occured. Please try again.';
	$messages['contactdelerror'] = 'Could not delete contact(s).';
	$messages['contactdeleted'] = 'Contact(s) deleted successfully.';
	$messages['contactrestoreerror'] = 'Could not restore deleted contact(s).';
	$messages['contactrestored'] = 'Contact(s) restored successfully.';
	$messages['groupdeleted'] = 'Group deleted successfully.';
	$messages['grouprenamed'] = 'Group renamed successfully.';
	$messages['groupcreated'] = 'Group created successfully.';
	$messages['savedsearchdeleted'] = 'Saved search deleted successfully.';
	$messages['savedsearchdeleteerror'] = 'Could not delete saved search.';
	$messages['savedsearchcreated'] = 'Saved search created successfully.';
	$messages['savedsearchcreateerror'] = 'Could not create saved search.';
	$messages['messagedeleted'] = 'Message(s) deleted successfully.';
	$messages['messagemoved'] = 'Message(s) moved successfully.';
	$messages['messagecopied'] = 'Message(s) copied successfully.';
	$messages['messagemarked'] = 'Message(s) marked successfully.';
	$messages['autocompletechars'] = 'Enter at least $min characters for autocompletion.';
	$messages['autocompletemore'] = 'More matching entries found. Please type more characters.';
	$messages['namecannotbeempty'] = 'Name cannot be empty.';
	$messages['nametoolong'] = 'Name is too long.';
	$messages['folderupdated'] = 'Folder updated successfully.';
	$messages['foldercreated'] = 'Folder created successfully.';
	$messages['invalidimageformat'] = 'Not a valid image format.';
	$messages['mispellingsfound'] = 'Spelling errors detected in the message.';
	$messages['parentnotwritable'] = 'Unable to create/move folder into selected parent folder. No access rights.';
	$messages['messagetoobig'] = 'The message part is too big to process it.';

	?>
	diff --git a/program/steps/mail/check_recent.inc b/program/steps/mail/check_recent.inc
	index 1a1b08c60..90d17c15b 100644
	--- a/program/steps/mail/check_recent.inc
	+++ b/program/steps/mail/check_recent.inc
	@@ -1,107 +1,111 @@
	<?php

	/*
	+-----------------------------------------------------------------------+
	\| program/steps/mail/check_recent.inc \|
	\| \|
	\| This file is part of the Roundcube Webmail client \|
	\| Copyright (C) 2005-2010, The Roundcube Dev Team \|
	\| \|
	\| Licensed under the GNU General Public License version 3 or \|
	\| any later version with exceptions for skins & plugins. \|
	\| See the README file for a full license statement. \|
	\| \|
	\| PURPOSE: \|
	\| Check for recent messages, in all mailboxes \|
	\| \|
	+-----------------------------------------------------------------------+
	\| Author: Thomas Bruederli <roundcube@gmail.com> \|
	+-----------------------------------------------------------------------+
	*/

	+// If there's no folder or messages list, there's nothing to update
	+// This can happen on 'refresh' request
	+if (empty($_REQUEST['_folderlist']) && empty($_REQUEST['_list'])) {
	+ return;
	+}
	+
	$current = $RCMAIL->storage->get_folder();
	-$check_all = !empty($_GET['_refresh']) \|\| (bool)$RCMAIL->config->get('check_all_folders');
	+$check_all = $RCMAIL->action != 'refresh' \|\| (bool)$RCMAIL->config->get('check_all_folders');

	// list of folders to check
	if ($check_all) {
	$a_mailboxes = $RCMAIL->storage->list_folders_subscribed('', '*', 'mail');
	}
	else {
	$a_mailboxes = (array) $current;
	if ($a_mailboxes[0] != 'INBOX')
	$a_mailboxes[] = 'INBOX';
	}

	// check recent/unseen counts
	foreach ($a_mailboxes as $mbox_name) {
	$is_current = $mbox_name == $current;
	if ($is_current) {
	// Synchronize mailbox cache, handle flag changes
	$RCMAIL->storage->folder_sync($mbox_name);
	}

	// Get mailbox status
	$status = $RCMAIL->storage->folder_status($mbox_name);

	if ($status & 1) {
	// trigger plugin hook
	$RCMAIL->plugins->exec_hook('new_messages',
	array('mailbox' => $mbox_name, 'is_current' => $is_current));
	}

	rcmail_send_unread_count($mbox_name, true, null,
	(!$is_current && ($status & 1)) ? 'recent' : '');

	if ($status && $is_current) {
	// refresh saved search set
	$search_request = get_input_value('_search', RCUBE_INPUT_GPC);
	if ($search_request && isset($_SESSION['search'])
	&& $_SESSION['search_request'] == $search_request
	) {
	$_SESSION['search'] = $RCMAIL->storage->refresh_search();
	}

	if (!empty($_GET['_quota']))
	$OUTPUT->command('set_quota', rcmail_quota_content());

	// "No-list" mode, don't get messages
	if (empty($_GET['_list']))
	continue;

	// get overall message count; allow caching because rcube_storage::folder_status() did a refresh
	$list_mode = $RCMAIL->storage->get_threading() ? 'THREADS' : 'ALL';
	$all_count = $RCMAIL->storage->count(null, $list_mode, false, false);
	$page = $RCMAIL->storage->get_page();
	$page_size = $RCMAIL->storage->get_pagesize();

	// check current page if we're not on the first page
	if ($all_count && $page > 1) {
	$remaining = $all_count - $page_size * ($page - 1);
	if ($remaining <= 0) {
	$page -= 1;
	$RCMAIL->storage->set_page($page);
	$_SESSION['page'] = $page;
	}
	}

	$OUTPUT->set_env('messagecount', $all_count);
	$OUTPUT->set_env('pagecount', ceil($all_count/$page_size));
	$OUTPUT->command('set_rowcount', rcmail_get_messagecount_text($all_count), $mbox_name);
	$OUTPUT->set_env('current_page', $all_count ? $page : 1);

	// remove old rows (and clear selection if new list is empty)
	$OUTPUT->command('message_list.clear', $all_count ? false : true);

	if ($all_count) {
	$a_headers = $RCMAIL->storage->list_messages($mbox_name, null, rcmail_sort_column(), rcmail_sort_order());
	// add message rows
	rcmail_js_message_list($a_headers, false);
	// remove messages that don't exists from list selection array
	$OUTPUT->command('update_selection');
	}
	}
	}

	-$RCMAIL->plugins->exec_hook('keep_alive', array());
	-
	$OUTPUT->send();
	diff --git a/program/steps/mail/func.inc b/program/steps/mail/func.inc
	index f128a3834..374ab7571 100644
	--- a/program/steps/mail/func.inc
	+++ b/program/steps/mail/func.inc
	@@ -1,1824 +1,1825 @@
	<?php

	/*
	+-----------------------------------------------------------------------+
	\| program/steps/mail/func.inc \|
	\| \|
	\| This file is part of the Roundcube Webmail client \|
	\| Copyright (C) 2005-2010, The Roundcube Dev Team \|
	\| \|
	\| Licensed under the GNU General Public License version 3 or \|
	\| any later version with exceptions for skins & plugins. \|
	\| See the README file for a full license statement. \|
	\| \|
	\| PURPOSE: \|
	\| Provide webmail functionality and GUI objects \|
	\| \|
	+-----------------------------------------------------------------------+
	\| Author: Thomas Bruederli <roundcube@gmail.com> \|
	+-----------------------------------------------------------------------+
	*/

	// setup some global vars used by mail steps
	$SENT_MBOX = $RCMAIL->config->get('sent_mbox');
	$DRAFTS_MBOX = $RCMAIL->config->get('drafts_mbox');
	$SEARCH_MODS_DEFAULT = array(
	'*' => array('subject'=>1, 'from'=>1),
	$SENT_MBOX => array('subject'=>1, 'to'=>1),
	$DRAFTS_MBOX => array('subject'=>1, 'to'=>1)
	);

	// always instantiate storage object (but not connect to server yet)
	$RCMAIL->storage_init();

	// set imap properties and session vars
	if (strlen(trim($mbox = get_input_value('_mbox', RCUBE_INPUT_GPC, true))))
	$RCMAIL->storage->set_folder(($_SESSION['mbox'] = $mbox));
	else if ($RCMAIL->storage)
	$_SESSION['mbox'] = $RCMAIL->storage->get_folder();

	if (!empty($_GET['_page']))
	$RCMAIL->storage->set_page(($_SESSION['page'] = intval($_GET['_page'])));

	// set default sort col/order to session
	if (!isset($_SESSION['sort_col']))
	$_SESSION['sort_col'] = !empty($CONFIG['message_sort_col']) ? $CONFIG['message_sort_col'] : '';
	if (!isset($_SESSION['sort_order']))
	$_SESSION['sort_order'] = strtoupper($CONFIG['message_sort_order']) == 'ASC' ? 'ASC' : 'DESC';

	// set threads mode
	$a_threading = $RCMAIL->config->get('message_threading', array());
	if (isset($_GET['_threads'])) {
	if ($_GET['_threads'])
	$a_threading[$_SESSION['mbox']] = true;
	else
	unset($a_threading[$_SESSION['mbox']]);
	$RCMAIL->user->save_prefs(array('message_threading' => $a_threading));
	}
	$RCMAIL->storage->set_threading($a_threading[$_SESSION['mbox']]);

	// set message set for search result
	if (!empty($_REQUEST['_search']) && isset($_SESSION['search'])
	&& $_SESSION['search_request'] == $_REQUEST['_search']
	) {
	$RCMAIL->storage->set_search_set($_SESSION['search']);
	$OUTPUT->set_env('search_request', $_REQUEST['_search']);
	$OUTPUT->set_env('search_text', $_SESSION['last_text_search']);
	}

	// set main env variables, labels and page title
	if (empty($RCMAIL->action) \|\| $RCMAIL->action == 'list') {
	// connect to storage server and trigger error on failure
	$RCMAIL->storage_connect();

	$mbox_name = $RCMAIL->storage->get_folder();

	if (empty($RCMAIL->action)) {
	// initialize searching result if search_filter is used
	if ($_SESSION['search_filter'] && $_SESSION['search_filter'] != 'ALL') {
	$search_request = md5($mbox_name.$_SESSION['search_filter']);

	$RCMAIL->storage->search($mbox_name, $_SESSION['search_filter'], RCMAIL_CHARSET, rcmail_sort_column());
	$_SESSION['search'] = $RCMAIL->storage->get_search_set();
	$_SESSION['search_request'] = $search_request;
	$OUTPUT->set_env('search_request', $search_request);
	}

	$search_mods = $RCMAIL->config->get('search_mods', $SEARCH_MODS_DEFAULT);
	$OUTPUT->set_env('search_mods', $search_mods);
	}

	$threading = (bool) $RCMAIL->storage->get_threading();

	// set current mailbox and some other vars in client environment
	$OUTPUT->set_env('mailbox', $mbox_name);
	$OUTPUT->set_env('pagesize', $RCMAIL->storage->get_pagesize());
	$OUTPUT->set_env('delimiter', $RCMAIL->storage->get_hierarchy_delimiter());
	$OUTPUT->set_env('threading', $threading);
	$OUTPUT->set_env('threads', $threading \|\| $RCMAIL->storage->get_capability('THREAD'));
	$OUTPUT->set_env('preview_pane_mark_read', $RCMAIL->config->get('preview_pane_mark_read', 0));
	if ($RCMAIL->storage->get_capability('QUOTA')) {
	$OUTPUT->set_env('quota', true);
	}

	foreach (array('delete_junk','flag_for_deletion','read_when_deleted','skip_deleted','display_next','message_extwin','compose_extwin','forward_attachment') as $prop) {
	if ($CONFIG[$prop])
	$OUTPUT->set_env($prop, true);
	}

	if ($CONFIG['trash_mbox'])
	$OUTPUT->set_env('trash_mailbox', $CONFIG['trash_mbox']);
	if ($CONFIG['drafts_mbox'])
	$OUTPUT->set_env('drafts_mailbox', $CONFIG['drafts_mbox']);
	if ($CONFIG['junk_mbox'])
	$OUTPUT->set_env('junk_mailbox', $CONFIG['junk_mbox']);

	if (!empty($_SESSION['browser_caps']))
	$OUTPUT->set_env('browser_capabilities', $_SESSION['browser_caps']);

	if (!$OUTPUT->ajax_call)
	$OUTPUT->add_label('checkingmail', 'deletemessage', 'movemessagetotrash',
	'movingmessage', 'copyingmessage', 'deletingmessage', 'markingmessage',
	'copy', 'move', 'quota');

	$OUTPUT->set_pagetitle(rcmail_localize_foldername($RCMAIL->storage->mod_folder($mbox_name)));
	}

	/**
	* Returns 'to' if current folder is configured Sent or Drafts
	* or their subfolders, otherwise returns 'from'.
	*
	* @return string Column name
	*/
	function rcmail_message_list_smart_column_name()
	{
	global $RCMAIL;

	$delim = $RCMAIL->storage->get_hierarchy_delimiter();
	$mbox = $RCMAIL->storage->get_folder();
	$sent_mbox = $RCMAIL->config->get('sent_mbox');
	$drafts_mbox = $RCMAIL->config->get('drafts_mbox');

	if (strpos($mbox.$delim, $sent_mbox.$delim) === 0 \|\| strpos($mbox.$delim, $drafts_mbox.$delim) === 0) {
	return 'to';
	}

	return 'from';
	}

	/**
	* Returns configured messages list sorting column name
	* The name is context-sensitive, which means if sorting is set to 'fromto'
	* it will return 'from' or 'to' according to current folder type.
	*
	* @return string Column name
	*/
	function rcmail_sort_column()
	{
	global $RCMAIL;

	if (isset($_SESSION['sort_col'])) {
	$column = $_SESSION['sort_col'];
	}
	else {
	$column = $RCMAIL->config->get('message_sort_col');
	}

	// get name of smart From/To column in folder context
	if ($column == 'fromto') {
	$column = rcmail_message_list_smart_column_name();
	}

	return $column;
	}

	/**
	* Returns configured message list sorting order
	*
	* @return string Sorting order (ASC\|DESC)
	*/
	function rcmail_sort_order()
	{
	global $RCMAIL;

	if (isset($_SESSION['sort_order'])) {
	return $_SESSION['sort_order'];
	}

	return $RCMAIL->config->get('message_sort_order');
	}

	/**
	* return the message list as HTML table
	*/
	function rcmail_message_list($attrib)
	{
	global $CONFIG, $OUTPUT;

	// add some labels to client
	$OUTPUT->add_label('from', 'to');

	// add id to message list table if not specified
	if (!strlen($attrib['id']))
	$attrib['id'] = 'rcubemessagelist';

	// define list of cols to be displayed based on parameter or config
	if (empty($attrib['columns'])) {
	$a_show_cols = is_array($CONFIG['list_cols']) ? $CONFIG['list_cols'] : array('subject');
	$OUTPUT->set_env('col_movable', !in_array('list_cols', (array)$CONFIG['dont_override']));
	}
	else {
	$a_show_cols = preg_split('/[\s,;]+/', strip_quotes($attrib['columns']));
	$attrib['columns'] = $a_show_cols;
	}

	// save some variables for use in ajax list
	$_SESSION['list_attrib'] = $attrib;
	// make sure 'threads' and 'subject' columns are present
	if (!in_array('subject', $a_show_cols))
	array_unshift($a_show_cols, 'subject');
	if (!in_array('threads', $a_show_cols))
	array_unshift($a_show_cols, 'threads');

	$skin_path = $_SESSION['skin_path'] = $CONFIG['skin_path'];

	// set client env
	$OUTPUT->add_gui_object('messagelist', $attrib['id']);
	$OUTPUT->set_env('autoexpand_threads', intval($CONFIG['autoexpand_threads']));
	$OUTPUT->set_env('sort_col', $_SESSION['sort_col']);
	$OUTPUT->set_env('sort_order', $_SESSION['sort_order']);
	$OUTPUT->set_env('messages', array());
	$OUTPUT->set_env('coltypes', $a_show_cols);

	$OUTPUT->include_script('list.js');

	$thead = '';
	foreach (rcmail_message_list_head($attrib, $a_show_cols) as $cell)
	$thead .= html::tag('td', array('class' => $cell['className'], 'id' => $cell['id']), $cell['html']);

	return html::tag('table',
	$attrib,
	html::tag('thead', null, html::tag('tr', null, $thead)) .
	html::tag('tbody', null, ''),
	array('style', 'class', 'id', 'cellpadding', 'cellspacing', 'border', 'summary'));
	}


	/**
	* return javascript commands to add rows to the message list
	*/
	function rcmail_js_message_list($a_headers, $insert_top=FALSE, $a_show_cols=null)
	{
	global $CONFIG, $RCMAIL, $OUTPUT;

	if (empty($a_show_cols)) {
	if (!empty($_SESSION['list_attrib']['columns']))
	$a_show_cols = $_SESSION['list_attrib']['columns'];
	else
	$a_show_cols = is_array($CONFIG['list_cols']) ? $CONFIG['list_cols'] : array('subject');
	}
	else {
	if (!is_array($a_show_cols))
	$a_show_cols = preg_split('/[\s,;]+/', strip_quotes($a_show_cols));
	$head_replace = true;
	}

	$mbox = $RCMAIL->storage->get_folder();

	// make sure 'threads' and 'subject' columns are present
	if (!in_array('subject', $a_show_cols))
	array_unshift($a_show_cols, 'subject');
	if (!in_array('threads', $a_show_cols))
	array_unshift($a_show_cols, 'threads');

	$_SESSION['list_attrib']['columns'] = $a_show_cols;

	// Make sure there are no duplicated columns (#1486999)
	$a_show_cols = array_unique($a_show_cols);

	// Plugins may set header's list_cols/list_flags and other rcube_message_header variables
	// and list columns
	$plugin = $RCMAIL->plugins->exec_hook('messages_list',
	array('messages' => $a_headers, 'cols' => $a_show_cols));

	$a_show_cols = $plugin['cols'];
	$a_headers = $plugin['messages'];

	$thead = $head_replace ? rcmail_message_list_head($_SESSION['list_attrib'], $a_show_cols) : NULL;

	// get name of smart From/To column in folder context
	if (($f = array_search('fromto', $a_show_cols)) !== false) {
	$smart_col = rcmail_message_list_smart_column_name();
	}

	$OUTPUT->command('set_message_coltypes', $a_show_cols, $thead, $smart_col);

	if (empty($a_headers))
	return;

	// remove 'threads', 'attachment', 'flag', 'status' columns, we don't need them here
	foreach (array('threads', 'attachment', 'flag', 'status', 'priority') as $col) {
	if (($key = array_search($col, $a_show_cols)) !== FALSE)
	unset($a_show_cols[$key]);
	}

	// loop through message headers
	foreach ($a_headers as $n => $header) {
	if (empty($header))
	continue;

	$a_msg_cols = array();
	$a_msg_flags = array();

	// format each col; similar as in rcmail_message_list()
	foreach ($a_show_cols as $col) {
	$col_name = $col == 'fromto' ? $smart_col : $col;

	if (in_array($col_name, array('from', 'to', 'cc', 'replyto')))
	$cont = rcmail_address_string($header->$col_name, 3, false, null, $header->charset);
	else if ($col == 'subject') {
	$cont = trim(rcube_mime::decode_header($header->$col, $header->charset));
	if (!$cont) $cont = rcube_label('nosubject');
	$cont = Q($cont);
	}
	else if ($col == 'size')
	$cont = show_bytes($header->$col);
	else if ($col == 'date')
	$cont = format_date($header->date);
	else
	$cont = Q($header->$col);

	$a_msg_cols[$col] = $cont;
	}

	$a_msg_flags = array_change_key_case(array_map('intval', (array) $header->flags));
	if ($header->depth)
	$a_msg_flags['depth'] = $header->depth;
	else if ($header->has_children)
	$roots[] = $header->uid;
	if ($header->parent_uid)
	$a_msg_flags['parent_uid'] = $header->parent_uid;
	if ($header->has_children)
	$a_msg_flags['has_children'] = $header->has_children;
	if ($header->unread_children)
	$a_msg_flags['unread_children'] = $header->unread_children;
	if ($header->others['list-post'])
	$a_msg_flags['ml'] = 1;
	if ($header->priority)
	$a_msg_flags['prio'] = (int) $header->priority;

	$a_msg_flags['ctype'] = Q($header->ctype);
	$a_msg_flags['mbox'] = $mbox;

	// merge with plugin result (Deprecated, use $header->flags)
	if (!empty($header->list_flags) && is_array($header->list_flags))
	$a_msg_flags = array_merge($a_msg_flags, $header->list_flags);
	if (!empty($header->list_cols) && is_array($header->list_cols))
	$a_msg_cols = array_merge($a_msg_cols, $header->list_cols);

	$OUTPUT->command('add_message_row',
	$header->uid,
	$a_msg_cols,
	$a_msg_flags,
	$insert_top);
	}

	if ($RCMAIL->storage->get_threading()) {
	$OUTPUT->command('init_threads', (array) $roots, $mbox);
	}
	}


	/*
	* Creates <THEAD> for message list table
	*/
	function rcmail_message_list_head($attrib, $a_show_cols)
	{
	global $RCMAIL;

	$skin_path = $_SESSION['skin_path'];
	$image_tag = html::img(array('src' => "%s%s", 'alt' => "%s"));

	// check to see if we have some settings for sorting
	$sort_col = $_SESSION['sort_col'];
	$sort_order = $_SESSION['sort_order'];

	$dont_override = (array)$RCMAIL->config->get('dont_override');
	$disabled_sort = in_array('message_sort_col', $dont_override);
	$disabled_order = in_array('message_sort_order', $dont_override);

	$RCMAIL->output->set_env('disabled_sort_col', $disabled_sort);
	$RCMAIL->output->set_env('disabled_sort_order', $disabled_order);

	// define sortable columns
	if ($disabled_sort)
	$a_sort_cols = $sort_col && !$disabled_order ? array($sort_col) : array();
	else
	$a_sort_cols = array('subject', 'date', 'from', 'to', 'fromto', 'size', 'cc');

	if (!empty($attrib['optionsmenuicon'])) {
	$onclick = 'return ' . JS_OBJECT_NAME . ".command('menu-open', 'messagelistmenu')";
	if ($attrib['optionsmenuicon'] === true \|\| $attrib['optionsmenuicon'] == 'true')
	$list_menu = html::div(array('onclick' => $onclick, 'class' => 'listmenu',
	'id' => 'listmenulink', 'title' => rcube_label('listoptions')));
	else
	$list_menu = html::a(array('href' => '#', 'onclick' => $onclick),
	html::img(array('src' => $skin_path . $attrib['optionsmenuicon'],
	'id' => 'listmenulink', 'title' => rcube_label('listoptions')))
	);
	}
	else
	$list_menu = '';

	$cells = array();

	// get name of smart From/To column in folder context
	if (($f = array_search('fromto', $a_show_cols)) !== false) {
	$smart_col = rcmail_message_list_smart_column_name();
	}

	foreach ($a_show_cols as $col) {
	// get column name
	switch ($col) {
	case 'flag':
	$col_name = '<span class="flagged"> </span>';
	break;
	case 'attachment':
	case 'priority':
	case 'status':
	$col_name = '<span class="' . $col .'"> </span>';
	break;
	case 'threads':
	$col_name = $list_menu;
	break;
	case 'fromto':
	$col_name = Q(rcube_label($smart_col));
	break;
	default:
	$col_name = Q(rcube_label($col));
	}

	// make sort links
	if (in_array($col, $a_sort_cols))
	$col_name = html::a(array('href'=>"./#sort", 'onclick' => 'return '.JS_OBJECT_NAME.".command('sort','".$col."',this)", 'title' => rcube_label('sortby')), $col_name);
	else if ($col_name[0] != '<')
	$col_name = '<span class="' . $col .'">' . $col_name . '</span>';

	$sort_class = $col == $sort_col && !$disabled_order ? " sorted$sort_order" : '';
	$class_name = $col.$sort_class;

	// put it all together
	$cells[] = array('className' => $class_name, 'id' => "rcm$col", 'html' => $col_name);
	}

	return $cells;
	}


	/**
	* return an HTML iframe for loading mail content
	*/
	function rcmail_messagecontent_frame($attrib)
	{
	global $OUTPUT, $RCMAIL;

	if (empty($attrib['id']))
	$attrib['id'] = 'rcmailcontentwindow';

	$attrib['name'] = $attrib['id'];

	if ($RCMAIL->config->get('preview_pane'))
	$OUTPUT->set_env('contentframe', $attrib['id']);
	$OUTPUT->set_env('blankpage', $attrib['src'] ? $OUTPUT->abs_url($attrib['src']) : 'program/resources/blank.gif');

	return $OUTPUT->frame($attrib, true);
	}


	function rcmail_messagecount_display($attrib)
	{
	global $RCMAIL;

	if (!$attrib['id'])
	$attrib['id'] = 'rcmcountdisplay';

	$RCMAIL->output->add_gui_object('countdisplay', $attrib['id']);

	$content = $RCMAIL->action != 'show' ? rcmail_get_messagecount_text() : rcube_label('loading');

	return html::span($attrib, $content);
	}


	function rcmail_get_messagecount_text($count=NULL, $page=NULL)
	{
	global $RCMAIL;

	if ($page === NULL) {
	$page = $RCMAIL->storage->get_page();
	}

	$page_size = $RCMAIL->storage->get_pagesize();
	$start_msg = ($page-1) * $page_size + 1;

	if ($count!==NULL)
	$max = $count;
	else if ($RCMAIL->action)
	$max = $RCMAIL->storage->count(NULL, $RCMAIL->storage->get_threading() ? 'THREADS' : 'ALL');

	if ($max==0)
	$out = rcube_label('mailboxempty');
	else
	$out = rcube_label(array('name' => $RCMAIL->storage->get_threading() ? 'threadsfromto' : 'messagesfromto',
	'vars' => array('from' => $start_msg,
	'to' => min($max, $start_msg + $page_size - 1),
	'count' => $max)));

	return Q($out);
	}


	function rcmail_mailbox_name_display($attrib)
	{
	global $RCMAIL;

	if (!$attrib['id'])
	$attrib['id'] = 'rcmmailboxname';

	$RCMAIL->output->add_gui_object('mailboxname', $attrib['id']);

	return html::span($attrib, rcmail_get_mailbox_name_text());
	}


	function rcmail_get_mailbox_name_text()
	{
	global $RCMAIL;
	return rcmail_localize_foldername($RCMAIL->storage->get_folder());
	}


	function rcmail_send_unread_count($mbox_name, $force=false, $count=null, $mark='')
	{
	global $RCMAIL;

	$old_unseen = rcmail_get_unseen_count($mbox_name);

	if ($count === null)
	$unseen = $RCMAIL->storage->count($mbox_name, 'UNSEEN', $force);
	else
	$unseen = $count;

	if ($unseen != $old_unseen \|\| ($mbox_name == 'INBOX'))
	$RCMAIL->output->command('set_unread_count', $mbox_name, $unseen,
	($mbox_name == 'INBOX'), $unseen && $mark ? $mark : '');

	rcmail_set_unseen_count($mbox_name, $unseen);

	return $unseen;
	}


	function rcmail_set_unseen_count($mbox_name, $count)
	{
	// @TODO: this data is doubled (session and cache tables) if caching is enabled

	// Make sure we have an array here (#1487066)
	if (!is_array($_SESSION['unseen_count']))
	$_SESSION['unseen_count'] = array();

	$_SESSION['unseen_count'][$mbox_name] = $count;
	}


	function rcmail_get_unseen_count($mbox_name)
	{
	if (is_array($_SESSION['unseen_count']) && array_key_exists($mbox_name, $_SESSION['unseen_count']))
	return $_SESSION['unseen_count'][$mbox_name];
	else
	return null;
	}


	/**
	* Sets message is_safe flag according to 'show_images' option value
	*
	* @param object rcube_message Message
	*/
	function rcmail_check_safe(&$message)
	{
	global $RCMAIL;

	if (!$message->is_safe
	&& ($show_images = $RCMAIL->config->get('show_images'))
	&& $message->has_html_part()
	) {
	switch ($show_images) {
	case 1: // known senders only
	// get default addressbook, like in addcontact.inc
	$CONTACTS = $RCMAIL->get_address_book(-1, true);

	if ($CONTACTS) {
	$result = $CONTACTS->search('email', $message->sender['mailto'], 1, false);
	if ($result->count) {
	$message->set_safe(true);
	}
	}
	break;

	case 2: // always
	$message->set_safe(true);
	break;
	}
	}
	}


	/**
	* Cleans up the given message HTML Body (for displaying)
	*
	* @param string HTML
	* @param array Display parameters
	* @param array CID map replaces (inline images)
	* @return string Clean HTML
	*/
	function rcmail_wash_html($html, $p, $cid_replaces)
	{
	global $REMOTE_OBJECTS;

	$p += array('safe' => false, 'inline_html' => true);

	// special replacements (not properly handled by washtml class)
	$html_search = array(
	'/(<\/nobr>)(\s+)(<nobr>)/i', // space(s) between <NOBR>
	'/<title[^>]>[^<]<\/title>/i', // PHP bug #32547 workaround: remove title tag
	'/^(\0\0\xFE\xFF\|\xFF\xFE\0\0\|\xFE\xFF\|\xFF\xFE\|\xEF\xBB\xBF)/', // byte-order mark (only outlook?)
	'/<html\s[^>]+>/i', // washtml/DOMDocument cannot handle xml namespaces
	);
	$html_replace = array(
	'\\1'.'   '.'\\3',
	'',
	'',
	'<html>',
	);
	$html = preg_replace($html_search, $html_replace, trim($html));

	// PCRE errors handling (#1486856), should we use something like for every preg_* use?
	if ($html === null && ($preg_error = preg_last_error()) != PREG_NO_ERROR) {
	$errstr = "Could not clean up HTML message! PCRE Error: $preg_error.";

	if ($preg_error == PREG_BACKTRACK_LIMIT_ERROR)
	$errstr .= " Consider raising pcre.backtrack_limit!";
	if ($preg_error == PREG_RECURSION_LIMIT_ERROR)
	$errstr .= " Consider raising pcre.recursion_limit!";

	raise_error(array('code' => 620, 'type' => 'php',
	'line' => __LINE__, 'file' => __FILE__,
	'message' => $errstr), true, false);
	return '';
	}

	// fix (unknown/malformed) HTML tags before "wash"
	$html = preg_replace_callback('/(<[\/]*)([^\s>]+)/', 'rcmail_html_tag_callback', $html);

	// charset was converted to UTF-8 in rcube_storage::get_message_part(),
	// change/add charset specification in HTML accordingly,
	// washtml cannot work without that
	$meta = '<meta http-equiv="Content-Type" content="text/html; charset='.RCMAIL_CHARSET.'" />';

	// remove old meta tag and add the new one, making sure
	// that it is placed in the head (#1488093)
	$html = preg_replace('/<meta[^>]+charset=[a-z0-9-_]+[^>]*>/Ui', '', $html);
	$html = preg_replace('/(<head[^>]*>)/Ui', '\\1'.$meta, $html, -1, $rcount);
	if (!$rcount) {
	$html = '<head>' . $meta . '</head>' . $html;
	}

	// turn relative into absolute urls
	$html = rcmail_resolve_base($html);

	// clean HTML with washhtml by Frederic Motte
	$wash_opts = array(
	'show_washed' => false,
	'allow_remote' => $p['safe'],
	'blocked_src' => "./program/resources/blocked.gif",
	'charset' => RCMAIL_CHARSET,
	'cid_map' => $cid_replaces,
	'html_elements' => array('body'),
	);

	if (!$p['inline_html']) {
	$wash_opts['html_elements'] = array('html','head','title','body');
	}
	if ($p['safe']) {
	$wash_opts['html_elements'][] = 'link';
	$wash_opts['html_attribs'] = array('rel','type');
	}

	// overwrite washer options with options from plugins
	if (isset($p['html_elements']))
	$wash_opts['html_elements'] = $p['html_elements'];
	if (isset($p['html_attribs']))
	$wash_opts['html_attribs'] = $p['html_attribs'];

	// initialize HTML washer
	$washer = new washtml($wash_opts);

	if (!$p['skip_washer_form_callback'])
	$washer->add_callback('form', 'rcmail_washtml_callback');

	// allow CSS styles, will be sanitized by rcmail_washtml_callback()
	if (!$p['skip_washer_style_callback'])
	$washer->add_callback('style', 'rcmail_washtml_callback');

	// Remove non-UTF8 characters (#1487813)
	$html = rc_utf8_clean($html);

	$html = $washer->wash($html);
	$REMOTE_OBJECTS = $washer->extlinks;

	return $html;
	}


	/**
	* Convert the given message part to proper HTML
	* which can be displayed the message view
	*
	* @param object rcube_message_part Message part
	* @param array Display parameters array
	* @return string Formatted HTML string
	*/
	function rcmail_print_body($part, $p = array())
	{
	global $RCMAIL;

	// trigger plugin hook
	$data = $RCMAIL->plugins->exec_hook('message_part_before',
	array('type' => $part->ctype_secondary, 'body' => $part->body, 'id' => $part->mime_id)
	+ $p + array('safe' => false, 'plain' => false, 'inline_html' => true));

	// convert html to text/plain
	if ($data['type'] == 'html' && $data['plain']) {
	$txt = new html2text($data['body'], false, true);
	$body = $txt->get_text();
	$part->ctype_secondary = 'plain';
	}
	// text/html
	else if ($data['type'] == 'html') {
	$body = rcmail_wash_html($data['body'], $data, $part->replaces);
	$part->ctype_secondary = $data['type'];
	}
	// text/enriched
	else if ($data['type'] == 'enriched') {
	$part->ctype_secondary = 'html';
	require_once(INSTALL_PATH . 'program/lib/enriched.inc');
	$body = Q(enriched_to_html($data['body']), 'show');
	}
	else {
	// assert plaintext
	$body = $part->body;
	$part->ctype_secondary = $data['type'] = 'plain';
	}

	// free some memory (hopefully)
	unset($data['body']);

	// plaintext postprocessing
	if ($part->ctype_secondary == 'plain')
	$body = rcmail_plain_body($body, $part->ctype_parameters['format'] == 'flowed');

	// allow post-processing of the message body
	$data = $RCMAIL->plugins->exec_hook('message_part_after',
	array('type' => $part->ctype_secondary, 'body' => $body, 'id' => $part->mime_id) + $data);

	return $data['type'] == 'html' ? $data['body'] : html::tag('pre', array(), $data['body']);
	}


	/**
	* Handle links and citation marks in plain text message
	*
	* @param string Plain text string
	* @param boolean Text uses format=flowed
	*
	* @return string Formatted HTML string
	*/
	function rcmail_plain_body($body, $flowed=false)
	{
	global $RCMAIL;

	// make links and email-addresses clickable
	$replacer = new rcube_string_replacer;

	// search for patterns like links and e-mail addresses and replace with tokens
	$body = $replacer->replace($body);

	// split body into single lines
	$body = preg_split('/\r?\n/', $body);
	$quote_level = 0;
	$last = -1;

	// find/mark quoted lines...
	for ($n=0, $cnt=count($body); $n < $cnt; $n++) {
	if ($body[$n][0] == '>' && preg_match('/^(>+\s*)+/', $body[$n], $regs)) {
	$q = strlen(preg_replace('/\s/', '', $regs[0]));
	$body[$n] = substr($body[$n], strlen($regs[0]));

	if ($q > $quote_level) {
	$body[$n] = $replacer->get_replacement($replacer->add(
	str_repeat('<blockquote>', $q - $quote_level))) . $body[$n];
	}
	else if ($q < $quote_level) {
	$body[$n] = $replacer->get_replacement($replacer->add(
	str_repeat('</blockquote>', $quote_level - $q))) . $body[$n];
	}
	else if ($flowed) {
	// previous line is flowed
	if (isset($body[$last]) && $body[$n]
	&& $body[$last][strlen($body[$last])-1] == ' ') {
	// merge lines
	$body[$last] .= $body[$n];
	unset($body[$n]);
	}
	else {
	$last = $n;
	}
	}
	}
	else {
	$q = 0;
	if ($flowed) {
	// sig separator - line is fixed
	if ($body[$n] == '-- ') {
	$last = $last_sig = $n;
	}
	else {
	// remove space-stuffing
	if ($body[$n][0] == ' ')
	$body[$n] = substr($body[$n], 1);

	// previous line is flowed?
	if (isset($body[$last]) && $body[$n]
	&& $last !== $last_sig
	&& $body[$last][strlen($body[$last])-1] == ' '
	) {
	$body[$last] .= $body[$n];
	unset($body[$n]);
	}
	else {
	$last = $n;
	}
	}
	if ($quote_level > 0)
	$body[$last] = $replacer->get_replacement($replacer->add(
	str_repeat('</blockquote>', $quote_level))) . $body[$last];
	}
	else if ($quote_level > 0)
	$body[$n] = $replacer->get_replacement($replacer->add(
	str_repeat('</blockquote>', $quote_level))) . $body[$n];
	}

	$quote_level = $q;
	}

	$body = join("\n", $body);

	// quote plain text (don't use Q() here, to display entities "as is")
	$table = get_html_translation_table(HTML_SPECIALCHARS);
	unset($table['?']);
	$body = strtr($body, $table);

	// colorize signature (up to <sig_max_lines> lines)
	$len = strlen($body);
	$sig_max_lines = $RCMAIL->config->get('sig_max_lines', 15);
	while (($sp = strrpos($body, "-- \n", $sp ? -$len+$sp-1 : 0)) !== false) {
	if ($sp == 0 \|\| $body[$sp-1] == "\n") {
	// do not touch blocks with more that X lines
	if (substr_count($body, "\n", $sp) < $sig_max_lines)
	$body = substr($body, 0, max(0, $sp))
	.'<span class="sig">'.substr($body, $sp).'</span>';
	break;
	}
	}

	// insert url/mailto links and citation tags
	$body = $replacer->resolve($body);

	return $body;
	}


	/**
	* Callback function for washtml cleaning class
	*/
	function rcmail_washtml_callback($tagname, $attrib, $content, $washtml)
	{
	switch ($tagname) {
	case 'form':
	$out = html::div('form', $content);
	break;

	case 'style':
	// decode all escaped entities and reduce to ascii strings
	$stripped = preg_replace('/[^a-zA-Z\(:;]/', '', rcmail_xss_entity_decode($content));

	// now check for evil strings like expression, behavior or url()
	if (!preg_match('/expression\|behavior\|javascript:\|import[^a]/i', $stripped)) {
	if (!$washtml->get_config('allow_remote') && stripos($stripped, 'url('))
	$washtml->extlinks = true;
	else
	$out = html::tag('style', array('type' => 'text/css'), $content);
	break;
	}

	default:
	$out = '';
	}

	return $out;
	}


	/**
	* Callback function for HTML tags fixing
	*/
	function rcmail_html_tag_callback($matches)
	{
	$tagname = $matches[2];

	$tagname = preg_replace(array(
	'/:.*$/', // Microsoft's Smart Tags <st1:xxxx>
	'/[^a-z0-9_\[\]\!-]/i', // forbidden characters
	), '', $tagname);

	return $matches[1].$tagname;
	}


	/**
	* return table with message headers
	*/
	function rcmail_message_headers($attrib, $headers=NULL)
	{
	global $OUTPUT, $MESSAGE, $PRINT_MODE, $RCMAIL;
	static $sa_attrib;

	// keep header table attrib
	if (is_array($attrib) && !$sa_attrib)
	$sa_attrib = $attrib;
	else if (!is_array($attrib) && is_array($sa_attrib))
	$attrib = $sa_attrib;

	if (!isset($MESSAGE))
	return FALSE;

	// get associative array of headers object
	if (!$headers)
	$headers = is_object($MESSAGE->headers) ? get_object_vars($MESSAGE->headers) : $MESSAGE->headers;

	// show these headers
	$standard_headers = array('subject', 'from', 'to', 'cc', 'bcc', 'replyto',
	'mail-reply-to', 'mail-followup-to', 'date', 'priority');
	$exclude_headers = $attrib['exclude'] ? explode(',', $attrib['exclude']) : array();
	$output_headers = array();

	foreach ($standard_headers as $hkey) {
	$ishtml = false;

	if ($headers[$hkey])
	$value = $headers[$hkey];
	else if ($headers['others'][$hkey])
	$value = $headers['others'][$hkey];
	else
	continue;

	if (in_array($hkey, $exclude_headers))
	continue;

	$header_title = rcube_label(preg_replace('/(^mail-\|-)/', '', $hkey));

	if ($hkey == 'date') {
	if ($PRINT_MODE)
	$header_value = format_date($value, $RCMAIL->config->get('date_long', 'x'));
	else
	$header_value = format_date($value);
	}
	else if ($hkey == 'priority') {
	if ($value) {
	$header_value = html::span('prio' . $value, rcmail_localized_priority($value));
	}
	else
	continue;
	}
	else if ($hkey == 'replyto') {
	if ($headers['replyto'] != $headers['from']) {
	$header_value = rcmail_address_string($value, $attrib['max'], true, $attrib['addicon'], $headers['charset'], $header_title);
	$ishtml = true;
	}
	else
	continue;
	}
	else if ($hkey == 'mail-reply-to') {
	if ($headers['mail-replyto'] != $headers['reply-to']
	&& $headers['reply-to'] != $headers['from']
	) {
	$header_value = rcmail_address_string($value, $attrib['max'], true, $attrib['addicon'], $headers['charset'], $header_title);
	$ishtml = true;
	}
	else
	continue;
	}
	else if ($hkey == 'mail-followup-to') {
	$header_value = rcmail_address_string($value, $attrib['max'], true, $attrib['addicon'], $headers['charset'], $header_title);
	$ishtml = true;
	}
	else if (in_array($hkey, array('from', 'to', 'cc', 'bcc'))) {
	$header_value = rcmail_address_string($value, $attrib['max'], true, $attrib['addicon'], $headers['charset'], $header_title);
	$ishtml = true;
	}
	else if ($hkey == 'subject' && empty($value))
	$header_value = rcube_label('nosubject');
	else
	$header_value = trim(rcube_mime::decode_header($value, $headers['charset']));

	$output_headers[$hkey] = array(
	'title' => $header_title,
	'value' => $header_value,
	'raw' => $value,
	'html' => $ishtml,
	);
	}

	$plugin = $RCMAIL->plugins->exec_hook('message_headers_output',
	array('output' => $output_headers, 'headers' => $MESSAGE->headers, 'exclude' => $exclude_headers));

	// single header value is requested
	if (!empty($attrib['valueof']))
	return Q($plugin['output'][$attrib['valueof']]['value'], ($attrib['valueof'] == 'subject' ? 'strict' : 'show'));

	// compose html table
	$table = new html_table(array('cols' => 2));

	foreach ($plugin['output'] as $hkey => $row) {
	$table->add(array('class' => 'header-title'), Q($row['title']));
	$table->add(array('class' => 'header '.$hkey), $row['html'] ? $row['value'] : Q($row['value'], ($hkey == 'subject' ? 'strict' : 'show')));
	}

	return $table->show($attrib);
	}

	/**
	* Convert Priority header value into a localized string
	*/
	function rcmail_localized_priority($value)
	{
	$labels_map = array(
	'1' => 'highest',
	'2' => 'high',
	'3' => 'normal',
	'4' => 'low',
	'5' => 'lowest',
	);

	if ($value && $labels_map[$value])
	return rcube_label($labels_map[$value]);

	return '';
	}

	/**
	* return block to show full message headers
	*/
	function rcmail_message_full_headers($attrib, $headers=NULL)
	{
	global $OUTPUT;

	$html = html::div(array('id' => "all-headers", 'class' => "all", 'style' => 'display:none'), html::div(array('id' => 'headers-source'), ''));
	$html .= html::div(array('class' => "more-headers show-headers", 'onclick' => "return ".JS_OBJECT_NAME.".command('show-headers','',this)", 'title' => rcube_label('togglefullheaders')), '');

	$OUTPUT->add_gui_object('all_headers_row', 'all-headers');
	$OUTPUT->add_gui_object('all_headers_box', 'headers-source');

	return html::div($attrib, $html);
	}


	/**
	* Handler for the 'messagebody' GUI object
	*
	* @param array Named parameters
	* @return string HTML content showing the message body
	*/
	function rcmail_message_body($attrib)
	{
	global $CONFIG, $OUTPUT, $MESSAGE, $RCMAIL, $REMOTE_OBJECTS;

	if (!is_array($MESSAGE->parts) && empty($MESSAGE->body))
	return '';

	if (!$attrib['id'])
	$attrib['id'] = 'rcmailMsgBody';

	$safe_mode = $MESSAGE->is_safe \|\| intval($_GET['_safe']);
	$out = '';

	$header_attrib = array();
	foreach ($attrib as $attr => $value)
	if (preg_match('/^headertable([a-z]+)$/i', $attr, $regs))
	$header_attrib[$regs[1]] = $value;

	if (!empty($MESSAGE->parts)) {
	foreach ($MESSAGE->parts as $i => $part) {
	if ($part->type == 'headers')
	$out .= rcmail_message_headers(sizeof($header_attrib) ? $header_attrib : NULL, $part->headers);
	else if ($part->type == 'content') {
	// unsapported
	if ($part->realtype) {
	if ($part->realtype == 'multipart/encrypted') {
	$out .= html::span('part-notice', rcube_label('encryptedmessage'));
	}
	continue;
	}
	else if (!$part->size) {
	continue;
	}
	// Check if we have enough memory to handle the message in it
	// #1487424: we need up to 10x more memory than the body
	else if (!rcmail_mem_check($part->size * 10)) {
	$out .= html::span('part-notice', rcube_label('messagetoobig'). ' '
	. html::a('?_task=mail&_action=get&_download=1&_uid='.$MESSAGE->uid.'&_part='.$part->mime_id
	.'&_mbox='. urlencode($RCMAIL->storage->get_folder()), rcube_label('download')));
	continue;
	}

	if (empty($part->ctype_parameters) \|\| empty($part->ctype_parameters['charset']))
	$part->ctype_parameters['charset'] = $MESSAGE->headers->charset;

	// fetch part if not available
	if (!isset($part->body))
	$part->body = $MESSAGE->get_part_content($part->mime_id);

	// message is cached but not exists (#1485443), or other error
	if ($part->body === false) {
	rcmail_message_error($MESSAGE->uid);
	}

	$plugin = $RCMAIL->plugins->exec_hook('message_body_prefix', array(
	'part' => $part, 'prefix' => ''));

	$body = rcmail_print_body($part, array('safe' => $safe_mode, 'plain' => !$CONFIG['prefer_html']));

	if ($part->ctype_secondary == 'html') {
	$body = rcmail_html4inline($body, $attrib['id'], 'rcmBody', $attrs, $safe_mode);
	$div_attr = array('class' => 'message-htmlpart');
	$style = array();

	if (!empty($attrs)) {
	foreach ($attrs as $a_idx => $a_val)
	$style[] = $a_idx . ': ' . $a_val;
	if (!empty($style))
	$div_attr['style'] = implode('; ', $style);
	}

	$out .= html::div($div_attr, $plugin['prefix'] . $body);
	}
	else
	$out .= html::div('message-part', $plugin['prefix'] . $body);
	}
	}
	}
	else {
	// Check if we have enough memory to handle the message in it
	// #1487424: we need up to 10x more memory than the body
	if (!rcmail_mem_check(strlen($MESSAGE->body) * 10)) {
	$out .= html::span('part-notice', rcube_label('messagetoobig'). ' '
	. html::a('?_task=mail&_action=get&_download=1&_uid='.$MESSAGE->uid.'&_part=0'
	.'&_mbox='. urlencode($RCMAIL->storage->get_folder()), rcube_label('download')));
	}
	else {
	$plugin = $RCMAIL->plugins->exec_hook('message_body_prefix', array(
	'part' => $MESSAGE, 'prefix' => ''));

	$out .= html::div('message-part', $plugin['prefix'] . html::tag('pre', array(),
	rcmail_plain_body(Q($MESSAGE->body, 'strict', false))));
	}
	}

	// list images after mail body
	if ($CONFIG['inline_images'] && !empty($MESSAGE->attachments)) {
	foreach ($MESSAGE->attachments as $attach_prop) {
	// skip inline images
	if ($attach_prop->content_id && $attach_prop->disposition == 'inline') {
	continue;
	}

	// Content-Type: image/*...
	if (rcmail_part_image_type($attach_prop)) {
	$out .= html::tag('hr') . html::p(array('align' => "center"),
	html::img(array(
	'src' => $MESSAGE->get_part_url($attach_prop->mime_id, true),
	'title' => $attach_prop->filename,
	'alt' => $attach_prop->filename,
	)));
	}
	}
	}

	// tell client that there are blocked remote objects
	if ($REMOTE_OBJECTS && !$safe_mode)
	$OUTPUT->set_env('blockedobjects', true);

	return html::div($attrib, $out);
	}

	function rcmail_part_image_type($part)
	{
	$rcmail = rcmail::get_instance();

	// Skip TIFF images if browser doesn't support this format...
	$tiff_support = !empty($_SESSION['browser_caps']) && !empty($_SESSION['browser_caps']['tif']);
	// until we can convert them to JPEG
	$tiff_support = $tiff_support \|\| $rcmail->config->get('im_convert_path');

	// Content-type regexp
	$mime_regex = $tiff_support ? '/^image\//i' : '/^image\/(?!tif)/i';

	// Content-Type: image/*...
	if (preg_match($mime_regex, $part->mimetype)) {
	return $part->mimetype;
	}

	// Many clients use application/octet-stream, we'll detect mimetype
	// by checking filename extension

	// Supported image filename extensions to image type map
	$types = array(
	'jpg' => 'image/jpeg',
	'jpeg' => 'image/jpeg',
	'png' => 'image/png',
	'gif' => 'image/gif',
	'bmp' => 'image/bmp',
	);
	if ($tiff_support) {
	$types['tif'] = 'image/tiff';
	$types['tiff'] = 'image/tiff';
	}

	if ($part->filename
	&& preg_match('/^application\/octet-stream$/i', $part->mimetype)
	&& preg_match('/\.([^.]+)$/i', $part->filename, $m)
	&& ($extension = strtolower($m[1]))
	&& isset($types[$extension])
	) {
	return $types[$extension];
	}
	}

	/**
	* Convert all relative URLs according to a <base> in HTML
	*/
	function rcmail_resolve_base($body)
	{
	// check for <base href=...>
	if (preg_match('!(<base.*href=["\']?)([hftps]{3,5}://[a-z0-9/.%-]+)!i', $body, $regs)) {
	$replacer = new rcube_base_replacer($regs[2]);
	$body = $replacer->replace($body);
	}

	return $body;
	}


	/**
	* modify a HTML message that it can be displayed inside a HTML page
	*/
	function rcmail_html4inline($body, $container_id, $body_id='', &$attributes=null, $allow_remote=false)
	{
	$last_style_pos = 0;
	$cont_id = $container_id.($body_id ? ' div.'.$body_id : '');

	// find STYLE tags
	while (($pos = stripos($body, '<style', $last_style_pos)) && ($pos2 = stripos($body, '</style>', $pos)))
	{
	$pos = strpos($body, '>', $pos) + 1;
	$len = $pos2 - $pos;

	// replace all css definitions with #container [def]
	$styles = substr($body, $pos, $len);
	$styles = rcmail_mod_css_styles($styles, $cont_id, $allow_remote);

	$body = substr_replace($body, $styles, $pos, $len);
	$last_style_pos = $pos2 + strlen($styles) - $len;
	}

	// modify HTML links to open a new window if clicked
	$GLOBALS['rcmail_html_container_id'] = $container_id;
	$body = preg_replace_callback('/<(a\|link\|area)\s+([^>]+)>/Ui', 'rcmail_alter_html_link', $body);
	unset($GLOBALS['rcmail_html_container_id']);

	$body = preg_replace(array(
	// add comments arround html and other tags
	'/(<!DOCTYPE[^>]*>)/i',
	'/(<\?xml[^>]*>)/i',
	'/(<\/?html[^>]*>)/i',
	'/(<\/?head[^>]*>)/i',
	'/(<title[^>]>.<\/title>)/Ui',
	'/(<\/?meta[^>]*>)/i',
	// quote <? of php and xml files that are specified as text/html
	'/<\?/',
	'/\?>/',
	// replace <body> with <div>
	'/<body([^>]*)>/i',
	'/<\/body>/i',
	),
	array(
	'<!--\\1-->',
	'<!--\\1-->',
	'<!--\\1-->',
	'<!--\\1-->',
	'<!--\\1-->',
	'<!--\\1-->',
	'<?',
	'?>',
	'<div class="'.$body_id.'"\\1>',
	'</div>',
	),
	$body);

	$attributes = array();

	// Handle body attributes that doesn't play nicely with div elements
	$regexp = '/<div class="' . preg_quote($body_id, '/') . '"([^>]*)/';
	if (preg_match($regexp, $body, $m)) {
	$attrs = $m[0];
	// Get bgcolor, we'll set it as background-color of the message container
	if ($m[1] && preg_match('/bgcolor=["\']([a-z0-9#]+)["\']/', $attrs, $mb)) {
	$attributes['background-color'] = $mb[1];
	$attrs = preg_replace('/bgcolor=["\']([a-z0-9#]+)["\']/', '', $attrs);
	}
	// Get background, we'll set it as background-image of the message container
	if ($m[1] && preg_match('/background=["\']([^"\'>\s]+)["\']/', $attrs, $mb)) {
	$attributes['background-image'] = 'url('.$mb[1].')';
	$attrs = preg_replace('/background=["\']([^"\'>\s]+)["\']/', '', $attrs);
	}
	if (!empty($attributes)) {
	$body = preg_replace($regexp, rtrim($attrs), $body, 1);
	}

	// handle body styles related to background image
	if ($attributes['background-image']) {
	// get body style
	if (preg_match('/#'.preg_quote($cont_id, '/').'\s+\{([^}]+)}/i', $body, $m)) {
	// get background related style
	if (preg_match_all('/(background-position\|background-repeat)\s:\s([^;]+);/i', $m[1], $ma, PREG_SET_ORDER)) {
	foreach ($ma as $style)
	$attributes[$style[1]] = $style[2];
	}
	}
	}
	}
	// make sure there's 'rcmBody' div, we need it for proper css modification
	// its name is hardcoded in rcmail_message_body() also
	else {
	$body = '<div class="' . $body_id . '">' . $body . '</div>';
	}

	return $body;
	}


	/**
	* parse link attributes and set correct target
	*/
	function rcmail_alter_html_link($matches)
	{
	global $RCMAIL;

	// Support unicode/punycode in top-level domain part
	$EMAIL_PATTERN = '([a-z0-9][a-z0-9\-\.\+\_]@[^&@"\'.][^@&"\']\\.([^\\x00-\\x40\\x5b-\\x60\\x7b-\\x7f]{2,}\|xn--[a-z0-9]{2,}))';

	$tag = $matches[1];
	$attrib = parse_attrib_string($matches[2]);
	$end = '>';

	// Remove non-printable characters in URL (#1487805)
	if ($attrib['href'])
	$attrib['href'] = preg_replace('/[\x00-\x1F]/', '', $attrib['href']);

	if ($tag == 'link' && preg_match('/^https?:\/\//i', $attrib['href'])) {
	$tempurl = 'tmp-' . md5($attrib['href']) . '.css';
	$_SESSION['modcssurls'][$tempurl] = $attrib['href'];
	$attrib['href'] = $RCMAIL->url(array('task' => 'utils', 'action' => 'modcss', 'u' => $tempurl, 'c' => $GLOBALS['rcmail_html_container_id']));
	$end = ' />';
	}
	else if (preg_match('/^mailto:'.$EMAIL_PATTERN.'(\?[^"\'>]+)?/i', $attrib['href'], $mailto)) {
	$attrib['href'] = $mailto[0];
	$attrib['onclick'] = sprintf(
	"return %s.command('compose','%s',this)",
	JS_OBJECT_NAME,
	JQ($mailto[1].$mailto[3]));
	}
	else if (empty($attrib['href']) && !$attrib['name']) {
	$attrib['href'] = './#NOP';
	$attrib['onclick'] = 'return false';
	}
	else if (!empty($attrib['href']) && $attrib['href'][0] != '#') {
	$attrib['target'] = '_blank';
	}

	// allowed attributes for a\|link\|area tags
	$allow = array('href','name','target','onclick','id','class','style','title',
	'rel','type','media','alt','coords','nohref','hreflang','shape');

	return "<$tag" . html::attrib_string($attrib, $allow) . $end;
	}


	/**
	* decode address string and re-format it as HTML links
	*/
	function rcmail_address_string($input, $max=null, $linked=false, $addicon=null, $default_charset=null, $title=null)
	{
	global $RCMAIL, $PRINT_MODE, $CONFIG;

	$a_parts = rcube_mime::decode_address_list($input, null, true, $default_charset);

	if (!sizeof($a_parts))
	return $input;

	$c = count($a_parts);
	$j = 0;
	$out = '';
	$allvalues = array();

	if ($addicon && !isset($_SESSION['writeable_abook'])) {
	$_SESSION['writeable_abook'] = $RCMAIL->get_address_sources(true) ? true : false;
	}

	foreach ($a_parts as $part) {
	$j++;
	$name = $part['name'];
	$mailto = $part['mailto'];
	$string = $part['string'];

	// IDNA ASCII to Unicode
	if ($name == $mailto)
	$name = rcube_idn_to_utf8($name);
	if ($string == $mailto)
	$string = rcube_idn_to_utf8($string);
	$mailto = rcube_idn_to_utf8($mailto);

	if ($PRINT_MODE) {
	$out .= sprintf('%s <%s>', Q($name), $mailto);
	}
	else if (check_email($part['mailto'], false)) {
	if ($linked) {
	$address = html::a(array(
	'href' => 'mailto:'.$mailto,
	'onclick' => sprintf("return %s.command('compose','%s',this)", JS_OBJECT_NAME, JQ($mailto)),
	'title' => $mailto,
	'class' => "rcmContactAddress",
	),
	Q($name ? $name : $mailto));
	}
	else {
	$address = html::span(array('title' => $mailto, 'class' => "rcmContactAddress"),
	Q($name ? $name : $mailto));
	}

	if ($addicon && $_SESSION['writeable_abook']) {
	$address .= html::a(array(
	'href' => "#add",
	'onclick' => sprintf("return %s.command('add-contact','%s',this)", JS_OBJECT_NAME, $string),
	'title' => rcube_label('addtoaddressbook'),
	'class' => 'rcmaddcontact',
	),
	html::img(array(
	'src' => $CONFIG['skin_path'] . $addicon,
	'alt' => "Add contact",
	)));
	}
	}
	else {
	$address = '';
	if ($name)
	$address .= Q($name);
	if ($mailto)
	$address .= (strlen($address) ? ' ' : '') . sprintf('<%s>', Q($mailto));
	}

	$address = html::span('adr', $address);
	$allvalues[] = $address;

	if (!$moreadrs)
	$out .= ($out ? ', ' : '') . $address;

	if ($max && $j == $max && $c > $j) {
	if ($linked) {
	$moreadrs = $c - $j;
	}
	else {
	$out .= '...';
	break;
	}
	}
	}

	if ($moreadrs) {
	$out .= ' ' . html::a(array(
	'href' => '#more',
	'class' => 'morelink',
	'onclick' => sprintf("return %s.show_popup_dialog('%s','%s')",
	JS_OBJECT_NAME,
	JQ(join(', ', $allvalues)),
	JQ($title))
	),
	Q(rcube_label(array('name' => 'andnmore', 'vars' => array('nr' => $moreadrs)))));
	}

	return $out;
	}


	/**
	* Wrap text to a given number of characters per line
	* but respect the mail quotation of replies messages (>).
	* Finally add another quotation level by prpending the lines
	* with >
	*
	* @param string Text to wrap
	* @param int The line width
	* @return string The wrapped text
	*/
	function rcmail_wrap_and_quote($text, $length = 72)
	{
	// Rebuild the message body with a maximum of $max chars, while keeping quoted message.
	$max = max(75, $length + 8);
	$lines = preg_split('/\r?\n/', trim($text));
	$out = '';

	foreach ($lines as $line) {
	// don't wrap already quoted lines
	if ($line[0] == '>')
	$line = '>' . rtrim($line);
	else if (mb_strlen($line) > $max) {
	$newline = '';
	foreach(explode("\n", rc_wordwrap($line, $length - 2)) as $l) {
	if (strlen($l))
	$newline .= '> ' . $l . "\n";
	else
	$newline .= ">\n";
	}
	$line = rtrim($newline);
	}
	else
	$line = '> ' . $line;

	// Append the line
	$out .= $line . "\n";
	}

	return $out;
	}


	function rcmail_draftinfo_encode($p)
	{
	$parts = array();
	foreach ($p as $key => $val)
	$parts[] = $key . '=' . ($key == 'folder' ? base64_encode($val) : $val);

	return join('; ', $parts);
	}


	function rcmail_draftinfo_decode($str)
	{
	$info = array();
	foreach (preg_split('/;\s+/', $str) as $part) {
	list($key, $val) = explode('=', $part, 2);
	if ($key == 'folder')
	$val = base64_decode($val);
	$info[$key] = $val;
	}

	return $info;
	}


	function rcmail_message_part_controls($attrib)
	{
	global $MESSAGE, $RCMAIL;

	$part = asciiwords(get_input_value('_part', RCUBE_INPUT_GPC));
	if (!is_object($MESSAGE) \|\| !is_array($MESSAGE->parts) \|\| !($_GET['_uid'] && $_GET['_part']) \|\| !$MESSAGE->mime_parts[$part])
	return '';

	$part = $MESSAGE->mime_parts[$part];
	$table = new html_table(array('cols' => 3));

	$filename = $part->filename;
	if (empty($filename) && $attach_prop->mimetype == 'text/html') {
	$filename = rcube_label('htmlmessage');
	}

	if (!empty($filename)) {
	$table->add('title', Q(rcube_label('filename')));
	$table->add('header', Q($filename));
	$table->add('download-link', html::a(array('href' => './?'.str_replace('_frame=', '_download=', $_SERVER['QUERY_STRING'])), Q(rcube_label('download'))));
	}

	$table->add('title', Q(rcube_label('filesize')));
	$table->add('header', Q($RCMAIL->message_part_size($part)));

	return $table->show($attrib);
	}



	function rcmail_message_part_frame($attrib)
	{
	global $MESSAGE;

	$part = $MESSAGE->mime_parts[asciiwords(get_input_value('_part', RCUBE_INPUT_GPC))];
	$ctype_primary = strtolower($part->ctype_primary);

	$attrib['src'] = './?' . str_replace('_frame=', ($ctype_primary=='text' ? '_show=' : '_preload='), $_SERVER['QUERY_STRING']);

	return html::iframe($attrib);
	}


	/**
	* clear message composing settings
	*/
	function rcmail_compose_cleanup($id)
	{
	if (!isset($_SESSION['compose_data_'.$id]))
	return;

	$rcmail = rcmail::get_instance();
	$rcmail->plugins->exec_hook('attachments_cleanup', array('group' => $id));
	$rcmail->session->remove('compose_data_'.$id);
	}


	/**
	* Send the MDN response
	*
	* @param mixed $message Original message object (rcube_message) or UID
	* @param array $smtp_error SMTP error array (reference)
	*
	* @return boolean Send status
	*/
	function rcmail_send_mdn($message, &$smtp_error)
	{
	global $RCMAIL;

	if (!is_object($message) \|\| !is_a($message, 'rcube_message'))
	$message = new rcube_message($message);

	if ($message->headers->mdn_to && empty($message->headers->flags['MDNSENT']) &&
	($RCMAIL->storage->check_permflag('MDNSENT') \|\| $RCMAIL->storage->check_permflag('*')))
	{
	$identity = $RCMAIL->user->get_identity();
	$sender = format_email_recipient($identity['email'], $identity['name']);
	$recipient = array_shift(rcube_mime::decode_address_list(
	$message->headers->mdn_to, 1, true, $message->headers->charset));
	$mailto = $recipient['mailto'];

	$compose = new Mail_mime("\r\n");

	$compose->setParam('text_encoding', 'quoted-printable');
	$compose->setParam('html_encoding', 'quoted-printable');
	$compose->setParam('head_encoding', 'quoted-printable');
	$compose->setParam('head_charset', RCMAIL_CHARSET);
	$compose->setParam('html_charset', RCMAIL_CHARSET);
	$compose->setParam('text_charset', RCMAIL_CHARSET);

	// compose headers array
	$headers = array(
	'Date' => rcmail_user_date(),
	'From' => $sender,
	'To' => $message->headers->mdn_to,
	'Subject' => rcube_label('receiptread') . ': ' . $message->subject,
	'Message-ID' => rcmail_gen_message_id(),
	'X-Sender' => $identity['email'],
	'References' => trim($message->headers->references . ' ' . $message->headers->messageID),
	);

	if ($agent = $RCMAIL->config->get('useragent'))
	$headers['User-Agent'] = $agent;

	$body = rcube_label("yourmessage") . "\r\n\r\n" .
	"\t" . rcube_label("to") . ': ' . rcube_mime::decode_mime_string($message->headers->to, $message->headers->charset) . "\r\n" .
	"\t" . rcube_label("subject") . ': ' . $message->subject . "\r\n" .
	"\t" . rcube_label("sent") . ': ' . format_date($message->headers->date, $RCMAIL->config->get('date_long')) . "\r\n" .
	"\r\n" . rcube_label("receiptnote") . "\r\n";

	$ua = $RCMAIL->config->get('useragent', "Roundcube Webmail (Version ".RCMAIL_VERSION.")");
	$report = "Reporting-UA: $ua\r\n";

	if ($message->headers->to)
	$report .= "Original-Recipient: {$message->headers->to}\r\n";

	$report .= "Final-Recipient: rfc822; {$identity['email']}\r\n" .
	"Original-Message-ID: {$message->headers->messageID}\r\n" .
	"Disposition: manual-action/MDN-sent-manually; displayed\r\n";

	$compose->headers($headers);
	$compose->setContentType('multipart/report', array('report-type'=> 'disposition-notification'));
	$compose->setTXTBody(rc_wordwrap($body, 75, "\r\n"));
	$compose->addAttachment($report, 'message/disposition-notification', 'MDNPart2.txt', false, '7bit', 'inline');

	$sent = rcmail_deliver_message($compose, $identity['email'], $mailto, $smtp_error, $body_file);

	if ($sent)
	{
	$RCMAIL->storage->set_flag($message->uid, 'MDNSENT');
	return true;
	}
	}

	return false;
	}


	// Fixes some content-type names
	function rcmail_fix_mimetype($name)
	{
	// Some versions of Outlook create garbage Content-Type:
	// application/pdf.A520491B_3BF7_494D_8855_7FAC2C6C0608
	if (preg_match('/^application\/pdf.+/', $name))
	$name = 'application/pdf';

	return $name;
	}

	function rcmail_search_filter($attrib)
	{
	global $OUTPUT, $CONFIG;

	if (!strlen($attrib['id']))
	$attrib['id'] = 'rcmlistfilter';

	$attrib['onchange'] = JS_OBJECT_NAME.'.filter_mailbox(this.value)';

	/*
	RFC3501 (6.4.4): 'ALL', 'RECENT',
	'ANSWERED', 'DELETED', 'FLAGGED', 'SEEN',
	'UNANSWERED', 'UNDELETED', 'UNFLAGGED', 'UNSEEN',
	'NEW', // = (RECENT UNSEEN)
	'OLD' // = NOT RECENT
	*/

	$select_filter = new html_select($attrib);
	$select_filter->add(rcube_label('all'), 'ALL');
	$select_filter->add(rcube_label('unread'), 'UNSEEN');
	$select_filter->add(rcube_label('flagged'), 'FLAGGED');
	$select_filter->add(rcube_label('unanswered'), 'UNANSWERED');
	if (!$CONFIG['skip_deleted']) {
	$select_filter->add(rcube_label('deleted'), 'DELETED');
	$select_filter->add(rcube_label('undeleted'), 'UNDELETED');
	}
	$select_filter->add(rcube_label('priority').': '.rcube_label('highest'), 'HEADER X-PRIORITY 1');
	$select_filter->add(rcube_label('priority').': '.rcube_label('high'), 'HEADER X-PRIORITY 2');
	$select_filter->add(rcube_label('priority').': '.rcube_label('normal'), 'NOT HEADER X-PRIORITY 1 NOT HEADER X-PRIORITY 2 NOT HEADER X-PRIORITY 4 NOT HEADER X-PRIORITY 5');
	$select_filter->add(rcube_label('priority').': '.rcube_label('low'), 'HEADER X-PRIORITY 4');
	$select_filter->add(rcube_label('priority').': '.rcube_label('lowest'), 'HEADER X-PRIORITY 5');

	$out = $select_filter->show($_SESSION['search_filter']);

	$OUTPUT->add_gui_object('search_filter', $attrib['id']);

	return $out;
	}

	function rcmail_message_error($uid=null)
	{
	global $RCMAIL;

	// Set env variables for messageerror.html template
	if ($RCMAIL->action == 'show') {
	$mbox_name = $RCMAIL->storage->get_folder();
	$RCMAIL->output->set_env('mailbox', $mbox_name);
	$RCMAIL->output->set_env('uid', null);
	}
	// display error message
	$RCMAIL->output->show_message('messageopenerror', 'error');
	// ... display message error page
	$RCMAIL->output->send('messageerror');
	}

	// register UI objects
	$OUTPUT->add_handlers(array(
	'mailboxlist' => 'rcmail_mailbox_list',
	'messages' => 'rcmail_message_list',
	'messagecountdisplay' => 'rcmail_messagecount_display',
	'quotadisplay' => 'rcmail_quota_display',
	'mailboxname' => 'rcmail_mailbox_name_display',
	'messageheaders' => 'rcmail_message_headers',
	'messagefullheaders' => 'rcmail_message_full_headers',
	'messagebody' => 'rcmail_message_body',
	'messagecontentframe' => 'rcmail_messagecontent_frame',
	'messagepartframe' => 'rcmail_message_part_frame',
	'messagepartcontrols' => 'rcmail_message_part_controls',
	'searchfilter' => 'rcmail_search_filter',
	'searchform' => array($OUTPUT, 'search_form'),
	));

	// register action aliases
	$RCMAIL->register_action_map(array(
	+ 'refresh' => 'check_recent.inc',
	'preview' => 'show.inc',
	'print' => 'show.inc',
	'moveto' => 'move_del.inc',
	'delete' => 'move_del.inc',
	'send' => 'sendmail.inc',
	'expunge' => 'folders.inc',
	'purge' => 'folders.inc',
	'remove-attachment' => 'attachments.inc',
	'display-attachment' => 'attachments.inc',
	'upload' => 'attachments.inc',
	'group-expand' => 'autocomplete.inc',
	));

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