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	diff --git a/plugins/calendar/calendar_ui.js b/plugins/calendar/calendar_ui.js
	index ec83d1b0..fcd360ae 100644
	--- a/plugins/calendar/calendar_ui.js
	+++ b/plugins/calendar/calendar_ui.js
	@@ -1,4302 +1,4319 @@
	/**
	* Client UI Javascript for the Calendar plugin
	*
	* @author Lazlo Westerhof <hello@lazlo.me>
	* @author Thomas Bruederli <bruederli@kolabsys.com>
	*
	* @licstart The following is the entire license notice for the
	* JavaScript code in this file.
	*
	* Copyright (C) 2010, Lazlo Westerhof <hello@lazlo.me>
	* Copyright (C) 2014, Kolab Systems AG <contact@kolabsys.com>
	*
	* This program is free software: you can redistribute it and/or modify
	* it under the terms of the GNU Affero General Public License as
	* published by the Free Software Foundation, either version 3 of the
	* License, or (at your option) any later version.
	*
	* 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 Affero General Public License for more details.
	*
	* You should have received a copy of the GNU Affero General Public License
	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	*
	* @licend The above is the entire license notice
	* for the JavaScript code in this file.
	*/

	// Roundcube calendar UI client class
	function rcube_calendar_ui(settings)
	{
	// extend base class
	rcube_calendar.call(this, settings);

	/* member vars */
	this.is_loading = false;
	this.selected_event = null;
	this.selected_calendar = null;
	this.search_request = null;
	this.saving_lock;
	this.calendars = {};
	this.quickview_sources = [];


	/* private vars */
	var DAY_MS = 86400000;
	var HOUR_MS = 3600000;
	var me = this;
	var gmt_offset = (new Date().getTimezoneOffset() / -60) - (settings.timezone \|\| 0) - (settings.dst \|\| 0);
	var client_timezone = new Date().getTimezoneOffset();
	var day_clicked = day_clicked_ts = 0;
	var ignore_click = false;
	var event_defaults = { free_busy:'busy', alarms:'' };
	var event_attendees = [];
	var calendars_list;
	var calenders_search_list;
	var calenders_search_container;
	var search_calendars = {};
	var attendees_list;
	var resources_list;
	var resources_treelist;
	var resources_data = {};
	var resources_index = [];
	var resource_owners = {};
	var resources_events_source = { url:null, editable:false };
	var freebusy_ui = { workinhoursonly:false, needsupdate:false };
	var freebusy_data = {};
	var current_view = null;
	var count_sources = [];
	var exec_deferred = bw.ie6 ? 5 : 1;
	var sensitivitylabels = { 'public':rcmail.gettext('public','calendar'), 'private':rcmail.gettext('private','calendar'), 'confidential':rcmail.gettext('confidential','calendar') };
	var ui_loading = rcmail.set_busy(true, 'loading');

	// general datepicker settings
	var datepicker_settings = {
	// translate from fullcalendar format to datepicker format
	dateFormat: settings['date_format'].replace(/M/g, 'm').replace(/mmmmm/, 'MM').replace(/mmm/, 'M').replace(/dddd/, 'DD').replace(/ddd/, 'D').replace(/yy/g, 'y'),
	firstDay : settings['first_day'],
	dayNamesMin: settings['days_short'],
	monthNames: settings['months'],
	monthNamesShort: settings['months'],
	changeMonth: false,
	showOtherMonths: true,
	selectOtherMonths: true
	};

	// global fullcalendar settings
	var fullcalendar_defaults = {
	aspectRatio: 1,
	ignoreTimezone: true, // will treat the given date strings as in local (browser's) timezone
	monthNames : settings.months,
	monthNamesShort : settings.months_short,
	dayNames : settings.days,
	dayNamesShort : settings.days_short,
	firstDay : settings.first_day,
	firstHour : settings.first_hour,
	slotMinutes : 60/settings.timeslots,
	timeFormat: {
	'': settings.time_format,
	agenda: settings.time_format + '{ - ' + settings.time_format + '}',
	list: settings.time_format + '{ - ' + settings.time_format + '}',
	table: settings.time_format + '{ - ' + settings.time_format + '}'
	},
	axisFormat : settings.time_format,
	columnFormat: {
	month: 'ddd', // Mon
	week: 'ddd ' + settings.date_short, // Mon 9/7
	day: 'dddd ' + settings.date_short, // Monday 9/7
	table: settings.date_agenda
	},
	titleFormat: {
	month: 'MMMM yyyy',
	week: settings.dates_long,
	day: 'dddd ' + settings['date_long'],
	table: settings.dates_long
	},
	listPage: 7, // advance one week in agenda view
	listRange: settings.agenda_range,
	listSections: settings.agenda_sections,
	tableCols: ['handle', 'date', 'time', 'title', 'location'],
	defaultView: rcmail.env.view \|\| settings.default_view,
	allDayText: rcmail.gettext('all-day', 'calendar'),
	buttonText: {
	prev: ' ◄ ',
	next: ' ► ',
	today: settings['today'],
	day: rcmail.gettext('day', 'calendar'),
	week: rcmail.gettext('week', 'calendar'),
	month: rcmail.gettext('month', 'calendar'),
	table: rcmail.gettext('agenda', 'calendar')
	},
	listTexts: {
	until: rcmail.gettext('until', 'calendar'),
	past: rcmail.gettext('pastevents', 'calendar'),
	today: rcmail.gettext('today', 'calendar'),
	tomorrow: rcmail.gettext('tomorrow', 'calendar'),
	thisWeek: rcmail.gettext('thisweek', 'calendar'),
	nextWeek: rcmail.gettext('nextweek', 'calendar'),
	thisMonth: rcmail.gettext('thismonth', 'calendar'),
	nextMonth: rcmail.gettext('nextmonth', 'calendar'),
	future: rcmail.gettext('futureevents', 'calendar'),
	week: rcmail.gettext('weekofyear', 'calendar')
	},
	currentTimeIndicator: settings.time_indicator,
	// event rendering
	eventRender: function(event, element, view) {
	if (view.name != 'list' && view.name != 'table') {
	var prefix = event.sensitivity && event.sensitivity != 'public' ? String(sensitivitylabels[event.sensitivity]).toUpperCase()+': ' : '';
	element.attr('title', prefix + event.title);
	}
	if (view.name != 'month') {
	if (event.location) {
	element.find('div.fc-event-title').after('<div class="fc-event-location">@ ' + Q(event.location) + '</div>');
	}
	if (event.sensitivity && event.sensitivity != 'public')
	element.find('div.fc-event-time').append('<i class="fc-icon-sensitive"></i>');
	if (event.recurrence)
	element.find('div.fc-event-time').append('<i class="fc-icon-recurring"></i>');
	if (event.alarms)
	element.find('div.fc-event-time').append('<i class="fc-icon-alarms"></i>');
	}
	if (event.status) {
	element.addClass('cal-event-status-' + String(event.status).toLowerCase());
	}

	element.attr('aria-label', event.title + ', ' + me.event_date_text(event, true));
	},
	// render element indicating more (invisible) events
	overflowRender: function(data, element) {
	element.html(rcmail.gettext('andnmore', 'calendar').replace('$nr', data.count))
	.click(function(e){ me.fisheye_view(data.date); });
	},
	// callback when a specific event is clicked
	eventClick: function(event, ev, view) {
	if (!event.temp && String(event.className).indexOf('fc-type-freebusy') < 0)
	event_show_dialog(event, ev);
	}
	};

	/* imports */
	var Q = this.quote_html;
	var text2html = this.text2html;
	var event_date_text = this.event_date_text;
	var parse_datetime = this.parse_datetime;
	var date2unixtime = this.date2unixtime;
	var fromunixtime = this.fromunixtime;
	var parseISO8601 = this.parseISO8601;
	var date2servertime = this.date2ISO8601;
	var render_message_links = this.render_message_links;


	/* private methods */

	// same as str.split(delimiter) but it ignores delimiters within quoted strings
	var explode_quoted_string = function(str, delimiter)
	{
	var result = [],
	strlen = str.length,
	q, p, i, char, last;

	for (q = p = i = 0; i < strlen; i++) {
	char = str.charAt(i);
	if (char == '"' && last != '\\') {
	q = !q;
	}
	else if (!q && char == delimiter) {
	result.push(str.substring(p, i));
	p = i + 1;
	}
	last = char;
	}

	result.push(str.substr(p));
	return result;
	};

	// Change the first charcter to uppercase
	var ucfirst = function(str)
	{
	return str.charAt(0).toUpperCase() + str.substr(1);
	};

	// clone the given date object and optionally adjust time
	var clone_date = function(date, adjust)
	{
	var d = new Date(date.getTime());

	// set time to 00:00
	if (adjust == 1) {
	d.setHours(0);
	d.setMinutes(0);
	}
	// set time to 23:59
	else if (adjust == 2) {
	d.setHours(23);
	d.setMinutes(59);
	}

	return d;
	};

	// fix date if jumped over a DST change
	var fix_date = function(date)
	{
	if (date.getHours() == 23)
	date.setTime(date.getTime() + HOUR_MS);
	else if (date.getHours() > 0)
	date.setHours(0);
	};

	var date2timestring = function(date, dateonly)
	{
	return date2servertime(date).replace(/[^0-9]/g, '').substr(0, (dateonly ? 8 : 14));
	}

	var format_datetime = function(date, mode, voice)
	{
	return me.format_datetime(date, mode, voice);
	}

	var render_link = function(url)
	{
	var islink = false, href = url;
	if (url.match(/^[fhtpsmailo]+?:\/\//i)) {
	islink = true;
	}
	else if (url.match(/^[a-z0-9.-:]+(\/\|$)/i)) {
	islink = true;
	href = 'http://' + url;
	}
	return islink ? '<a href="' + Q(href) + '" target="_blank">' + Q(url) + '</a>' : Q(url);
	}

	// determine whether the given date is on a weekend
	var is_weekend = function(date)
	{
	return date.getDay() == 0 \|\| date.getDay() == 6;
	};

	var is_workinghour = function(date)
	{
	if (settings['work_start'] > settings['work_end'])
	return date.getHours() >= settings['work_start'] \|\| date.getHours() < settings['work_end'];
	else
	return date.getHours() >= settings['work_start'] && date.getHours() < settings['work_end'];
	};

	// check if the event has 'real' attendees, excluding the current user
	var has_attendees = function(event)
	{
	return (event.attendees && event.attendees.length && (event.attendees.length > 1 \|\| String(event.attendees[0].email).toLowerCase() != settings.identity.email));
	};

	// check if the current user is an attendee of this event
	var is_attendee = function(event, role, email)
	{
	var emails = email ? ';'+email.toLowerCase() : settings.identity.emails;
	for (var i=0; event.attendees && i < event.attendees.length; i++) {
	if ((!role \|\| event.attendees[i].role == role) && event.attendees[i].email && emails.indexOf(';'+event.attendees[i].email.toLowerCase()) >= 0)
	return event.attendees[i];
	}
	return false;
	};

	// check if the current user is the organizer
	var is_organizer = function(event, email)
	{
	return is_attendee(event, 'ORGANIZER', email) \|\| !event.id;
	};

	var load_attachment = function(event, att)
	{
	var query = { _id: att.id, _event: event.recurrence_id \|\| event.id, _cal:event.calendar, _frame: 1 };
	if (event.rev)
	query._rev = event.rev;

	// open attachment in frame if it's of a supported mimetype
	if (id && att.mimetype && $.inArray(att.mimetype, settings.mimetypes)>=0) {
	if (rcmail.open_window(rcmail.url('get-attachment', query), true, true)) {
	return;
	}
	}

	query._frame = null;
	query._download = 1;
	rcmail.goto_url('get-attachment', query, false);
	};

	// build event attachments list
	var event_show_attachments = function(list, container, event, edit)
	{
	var i, id, len, img, content, li, elem,
	ul = document.createElement('UL');
	ul.className = 'attachmentslist';

	for (i=0, len=list.length; i<len; i++) {
	elem = list[i];
	li = document.createElement('LI');
	li.className = elem.classname;

	if (edit) {
	rcmail.env.attachments[elem.id] = elem;
	// delete icon
	content = $('<a href="#delete" />')
	.attr('title', rcmail.gettext('delete'))
	.attr('aria-label', rcmail.gettext('delete') + ' ' + Q(elem.name))
	.addClass('delete')
	.click({id: elem.id}, function(e) { remove_attachment(this, e.data.id); return false; });

	if (!rcmail.env.deleteicon)
	content.html(rcmail.gettext('delete'));
	else {
	img = document.createElement('IMG');
	img.src = rcmail.env.deleteicon;
	img.alt = rcmail.gettext('delete');
	content.append(img);
	}

	content.appendTo(li);
	}

	// name/link
	content = $('<a href="#load" />')
	.html(Q(elem.name))
	.addClass('file')
	.click({event: event, att: elem}, function(e) {
	load_attachment(e.data.event, e.data.att);
	return false;
	})
	.appendTo(li);

	ul.appendChild(li);
	}

	if (edit && rcmail.gui_objects.attachmentlist) {
	ul.id = rcmail.gui_objects.attachmentlist.id;
	rcmail.gui_objects.attachmentlist = ul;
	}

	container.empty().append(ul);
	};

	var remove_attachment = function(elem, id)
	{
	$(elem.parentNode).hide();
	rcmail.env.deleted_attachments.push(id);
	delete rcmail.env.attachments[id];
	};

	// event details dialog (show only)
	var event_show_dialog = function(event, ev, temp)
	{
	var $dialog = $("#eventshow");
	var calendar = event.calendar && me.calendars[event.calendar] ? me.calendars[event.calendar] : { editable:false };

	if (!temp)
	me.selected_event = event;

	if ($dialog.is(':ui-dialog'))
	$dialog.dialog('close');

	// remove status-* classes
	$dialog.removeClass(function(i, oldclass) {
	var oldies = String(oldclass).split(' ');
	return $.grep(oldies, function(cls) { return cls.indexOf('status-') === 0 \|\| cls.indexOf('sensitivity-') === 0 }).join(' ');
	});

	// convert start/end dates if not done yet by fullcalendar
	if (typeof event.start == 'string')
	event.start = parseISO8601(event.start);
	if (typeof event.end == 'string')
	event.end = parseISO8601(event.end);

	// allow other plugins to do actions when event form is opened
	rcmail.triggerEvent('calendar-event-init', {o: event});

	$dialog.find('div.event-section, div.event-line').hide();
	$('#event-title').html(Q(event.title)).show();

	if (event.location)
	$('#event-location').html('@ ' + text2html(event.location)).show();
	if (event.description)
	$('#event-description').show().children('.event-text').html(text2html(event.description, 300, 6));
	if (event.vurl)
	$('#event-url').show().children('.event-text').html(render_link(event.vurl));

	// render from-to in a nice human-readable way
	// -> now shown in dialog title
	// $('#event-date').html(Q(me.event_date_text(event))).show();

	if (event.recurrence && event.recurrence_text)
	$('#event-repeat').show().children('.event-text').html(Q(event.recurrence_text));

	if (event.valarms && event.alarms_text)
	$('#event-alarm').show().children('.event-text').html(Q(event.alarms_text));

	if (calendar.name)
	$('#event-calendar').show().children('.event-text').html(Q(calendar.name)).attr('class', 'event-text cal-'+calendar.id).css('color', calendar.textColor \|\| calendar.color \|\| '');
	if (event.categories)
	$('#event-category').show().children('.event-text').html(Q(event.categories)).attr('class', 'event-text cat-'+String(event.categories).toLowerCase().replace(rcmail.identifier_expr, ''));
	if (event.free_busy)
	$('#event-free-busy').show().children('.event-text').html(Q(rcmail.gettext(event.free_busy, 'calendar')));
	if (event.priority > 0) {
	var priolabels = [ '', rcmail.gettext('highest'), rcmail.gettext('high'), '', '', rcmail.gettext('normal'), '', '', rcmail.gettext('low'), rcmail.gettext('lowest') ];
	$('#event-priority').show().children('.event-text').html(Q(event.priority+' '+priolabels[event.priority]));
	}

	if (event.status) {
	var status_lc = String(event.status).toLowerCase();
	$('#event-status').show().children('.event-text').html(Q(rcmail.gettext('status-'+status_lc,'calendar')));
	$dialog.addClass('status-'+status_lc);
	}
	if (event.sensitivity && event.sensitivity != 'public') {
	$('#event-sensitivity').show().children('.event-text').html(Q(sensitivitylabels[event.sensitivity]));
	$dialog.addClass('sensitivity-'+event.sensitivity);
	}
	if (event.created \|\| event.changed) {
	var created = parseISO8601(event.created),
	changed = parseISO8601(event.changed)
	$('#event-created-changed .event-created').html(Q(created ? format_datetime(created) : rcmail.gettext('unknown','calendar')))
	$('#event-created-changed .event-changed').html(Q(changed ? format_datetime(changed) : rcmail.gettext('unknown','calendar')))
	$('#event-created-changed').show()
	}

	// create attachments list
	if ($.isArray(event.attachments)) {
	event_show_attachments(event.attachments, $('#event-attachments').children('.event-text'), event);
	if (event.attachments.length > 0) {
	$('#event-attachments').show();
	}
	}
	else if (calendar.attachments) {
	// fetch attachments, some drivers doesn't set 'attachments' prop of the event?
	}

	// build attachments list
	$('#event-links').hide();
	if ($.isArray(event.links) && event.links.length) {
	render_message_links(event.links \|\| [], $('#event-links').children('.event-text'), false, 'calendar');
	$('#event-links').show();
	}

	// list event attendees
	if (calendar.attendees && event.attendees) {
	// sort resources to the end
	event.attendees.sort(function(a,b) {
	var j = a.cutype == 'RESOURCE' ? 1 : 0,
	k = b.cutype == 'RESOURCE' ? 1 : 0;
	return (j - k);
	});

	var data, mystatus = null, rsvp, line, morelink, html = '', overflow = '';
	for (var j=0; j < event.attendees.length; j++) {
	data = event.attendees[j];
	if (data.email) {
	if (data.role == 'ORGANIZER')
	organizer = true;
	else if (settings.identity.emails.indexOf(';'+data.email) >= 0) {
	mystatus = data.status.toLowerCase();
	if (data.status == 'NEEDS-ACTION' \|\| data.status == 'TENTATIVE' \|\| data.rsvp)
	rsvp = mystatus;
	}
	}

	line = event_attendee_html(data);

	if (morelink)
	overflow += line;
	else
	html += line;

	// stop listing attendees
	if (j == 7 && event.attendees.length >= 7) {
	morelink = $('<a href="#more" class="morelink"></a>').html(rcmail.gettext('andnmore', 'calendar').replace('$nr', event.attendees.length - j - 1));
	}
	}

	if (html && (event.attendees.length > 1 \|\| !organizer)) {
	$('#event-attendees').show()
	.children('.event-text')
	.html(html)
	.find('a.mailtolink').click(event_attendee_click);

	// display all attendees in a popup when clicking the "more" link
	if (morelink) {
	$('#event-attendees .event-text').append(morelink);
	morelink.click(function(e){
	rcmail.show_popup_dialog(
	'<div id="all-event-attendees" class="event-attendees">' + html + overflow + '</div>',
	rcmail.gettext('tabattendees','calendar'),
	null,
	{ width:450, modal:false });
	$('#all-event-attendees a.mailtolink').click(event_attendee_click);
	return false;
	})
	}
	}

	if (mystatus && !rsvp) {
	$('#event-partstat').show().children('.changersvp')
	.removeClass('accepted tentative declined delegated needs-action')
	.addClass(mystatus)
	.children('.event-text')
	.html(Q(rcmail.gettext('itip' + mystatus, 'libcalendaring')));
	}

	var show_rsvp = rsvp && !is_organizer(event) && event.status != 'CANCELLED';
	$('#event-rsvp')[(show_rsvp ? 'show' : 'hide')]();
	$('#event-rsvp .rsvp-buttons input').prop('disabled', false).filter('input[rel='+mystatus+']').prop('disabled', true);

	if (show_rsvp && event.comment)
	$('#event-rsvp-comment').show().children('.event-text').html(Q(event.comment));

	$('#event-rsvp a.reply-comment-toggle').show();
	$('#event-rsvp .itip-reply-comment textarea').hide().val('');

	if (event.recurrence && event.id) {
	var sel = event._savemode \|\| (event.thisandfuture ? 'future' : (event.isexception ? 'current' : 'all'));
	- $('#event-rsvp input.rsvp-replymode[value="'+sel+'"]').prop('checked', true);
	- $('#event-rsvp .rsvp-replymode-message').show();
	+ $('#event-rsvp .rsvp-buttons').addClass('recurring');
	+ }
	+ else {
	+ $('#event-rsvp .rsvp-buttons').removeClass('recurring');
	}
	- else
	- $('#event-rsvp .rsvp-replymode-message').hide();
	}

	var buttons = [];
	if (!temp && calendar.editable && event.editable !== false) {
	buttons.push({
	text: rcmail.gettext('edit', 'calendar'),
	click: function() {
	event_edit_dialog('edit', event);
	}
	});
	buttons.push({
	text: rcmail.gettext('delete', 'calendar'),
	'class': 'delete',
	click: function() {
	me.delete_event(event);
	$dialog.dialog('close');
	}
	});
	}
	else {
	buttons.push({
	text: rcmail.gettext('close', 'calendar'),
	click: function(){
	$dialog.dialog('close');
	}
	});
	}

	// open jquery UI dialog
	$dialog.dialog({
	modal: false,
	resizable: !bw.ie6,
	closeOnEscape: (!bw.ie6 && !bw.ie7), // disable for performance reasons
	title: me.event_date_text(event),
	open: function() {
	$dialog.attr('aria-hidden', 'false');
	setTimeout(function(){
	$dialog.parent().find('.ui-button:not(.ui-dialog-titlebar-close)').first().focus();
	}, 5);
	},
	close: function() {
	$dialog.dialog('destroy').attr('aria-hidden', 'true').hide();
	rcmail.command('menu-close','eventoptionsmenu')
	},
	dragStart: function() {
	rcmail.command('menu-close','eventoptionsmenu')
	},
	resizeStart: function() {
	rcmail.command('menu-close','eventoptionsmenu')
	},
	buttons: buttons,
	minWidth: 320,
	width: 420
	}).show();

	// remember opener element (to be focused on close)
	$dialog.data('opener', ev && rcube_event.is_keyboard(ev) ? ev.target : null);

	// set voice title on dialog widget
	$dialog.dialog('widget').removeAttr('aria-labelledby')
	.attr('aria-label', me.event_date_text(event, true) + ', ', event.title);

	// set dialog size according to content
	me.dialog_resize($dialog.get(0), $dialog.height(), 420);

	// add link for "more options" drop-down
	if (!temp && !event.temporary && event.calendar != '_resource') {
	$('<a>')
	.attr('href', '#')
	.html(rcmail.gettext('eventoptions','calendar'))
	.addClass('dropdown-link')
	.click(function(e) {
	return rcmail.command('menu-open','eventoptionsmenu', this, e)
	})
	.appendTo($dialog.parent().find('.ui-dialog-buttonset'));
	}

	rcmail.enable_command('event-history', calendar.history)
	};

	// render HTML code for displaying an attendee record
	var event_attendee_html = function(data)
	{
	var dispname = Q(data.name \|\| data.email), tooltip = '';

	if (data.email) {
	tooltip = data.email + '; ' + data.status;
	dispname = '<a href="mailto:' + data.email + '" class="mailtolink" data-cutype="' + data.cutype + '">' + dispname + '</a>';
	}

	if (data['delegated-to'])
	tooltip = rcmail.gettext('delegatedto', 'calendar') + data['delegated-to'];
	else if (data['delegated-from'])
	tooltip = rcmail.gettext('delegatedfrom', 'calendar') + data['delegated-from'];

	return '<span class="attendee ' + String(data.role == 'ORGANIZER' ? 'organizer' : data.status).toLowerCase() + '" title="' + Q(tooltip) + '">' + dispname + '</span> ';
	};

	// event handler for clicks on an attendee link
	var event_attendee_click = function(e)
	{
	var cutype = $(this).attr('data-cutype'),
	mailto = this.href.substr(7);
	if (rcmail.env.calendar_resources && cutype == 'RESOURCE') {
	event_resources_dialog(mailto);
	}
	else {
	rcmail.command('compose', mailto, e ? e.target : null, e);
	}
	return false;
	};

	// bring up the event dialog (jquery-ui popup)
	var event_edit_dialog = function(action, event)
	{
	// copy opener element from show dialog
	var op_elem = $("#eventshow:ui-dialog").data('opener');

	// close show dialog first
	$("#eventshow:ui-dialog").data('opener', null).dialog('close');

	var $dialog = $('<div>');
	var calendar = event.calendar && me.calendars[event.calendar] ? me.calendars[event.calendar] : { editable:action=='new' };
	me.selected_event = $.extend($.extend({}, event_defaults), event); // clone event object (with defaults)
	event = me.selected_event; // change reference to clone
	freebusy_ui.needsupdate = false;

	// reset dialog first
	$('#eventtabs').get(0).reset();
	$('#event-panel-recurrence input, #event-panel-recurrence select, #event-panel-attachments input').prop('disabled', false);
	$('#event-panel-recurrence, #event-panel-attachments').removeClass('disabled');

	// allow other plugins to do actions when event form is opened
	rcmail.triggerEvent('calendar-event-init', {o: event});

	// event details
	var title = $('#edit-title').val(event.title \|\| '');
	var location = $('#edit-location').val(event.location \|\| '');
	var description = $('#edit-description').text(event.description \|\| '');
	var vurl = $('#edit-url').val(event.vurl \|\| '');
	var categories = $('#edit-categories').val(event.categories);
	var calendars = $('#edit-calendar').val(event.calendar);
	var eventstatus = $('#edit-event-status').val(event.status);
	var freebusy = $('#edit-free-busy').val(event.free_busy);
	var priority = $('#edit-priority').val(event.priority);
	var sensitivity = $('#edit-sensitivity').val(event.sensitivity);

	var duration = Math.round((event.end.getTime() - event.start.getTime()) / 1000);
	var startdate = $('#edit-startdate').val($.fullCalendar.formatDate(event.start, settings['date_format'])).data('duration', duration);
	var starttime = $('#edit-starttime').val($.fullCalendar.formatDate(event.start, settings['time_format'])).show();
	var enddate = $('#edit-enddate').val($.fullCalendar.formatDate(event.end, settings['date_format']));
	var endtime = $('#edit-endtime').val($.fullCalendar.formatDate(event.end, settings['time_format'])).show();
	var allday = $('#edit-allday').get(0);
	var notify = $('#edit-attendees-donotify').get(0);
	var invite = $('#edit-attendees-invite').get(0);
	var comment = $('#edit-attendees-comment');

	invite.checked = settings.itip_notify & 1 > 0;
	notify.checked = has_attendees(event) && invite.checked;

	if (event.allDay) {
	starttime.val("12:00").hide();
	endtime.val("13:00").hide();
	allday.checked = true;
	}
	else {
	allday.checked = false;
	}

	// set alarm(s)
	me.set_alarms_edit('#edit-alarms', action != 'new' && event.valarms && calendar.alarms ? event.valarms : []);

	// enable/disable alarm property according to backend support
	$('#edit-alarms')[(calendar.alarms ? 'show' : 'hide')]();

	// check categories drop-down: add value if not exists
	if (event.categories && !categories.find("option[value='"+event.categories+"']").length) {
	$('<option>').attr('value', event.categories).text(event.categories).appendTo(categories).prop('selected', true);
	}

	if ($.isArray(event.links) && event.links.length) {
	render_message_links(event.links, $('#edit-event-links .event-text'), true, 'calendar');
	$('#edit-event-links').show();
	}
	else {
	$('#edit-event-links').hide();
	}

	// show warning if editing a recurring event
	if (event.id && event.recurrence) {
	var sel = event._savemode \|\| (event.thisandfuture ? 'future' : (event.isexception ? 'current' : 'all'));
	$('#edit-recurring-warning').show();
	$('input.edit-recurring-savemode[value="'+sel+'"]').prop('checked', true).change();
	}
	else
	$('#edit-recurring-warning').hide();

	// init attendees tab
	var organizer = !event.attendees \|\| is_organizer(event),
	allow_invitations = organizer \|\| (calendar.owner && calendar.owner == 'anonymous') \|\| settings.invite_shared;
	event_attendees = [];
	attendees_list = $('#edit-attendees-table > tbody').html('');
	resources_list = $('#edit-resources-table > tbody').html('');
	$('#edit-attendees-notify')[(allow_invitations && has_attendees(event) && (settings.itip_notify & 2) ? 'show' : 'hide')]();
	$('#edit-localchanges-warning')[(has_attendees(event) && !(allow_invitations \|\| (calendar.owner && is_organizer(event, calendar.owner))) ? 'show' : 'hide')]();

	var load_attendees_tab = function()
	{
	var j, data, reply_selected = 0;
	if (event.attendees) {
	for (j=0; j < event.attendees.length; j++) {
	data = event.attendees[j];
	// reset attendee status
	if (event._savemode == 'new' && data.role != 'ORGANIZER') {
	data.status = 'NEEDS-ACTION';
	delete data.noreply;
	}
	add_attendee(data, !allow_invitations);
	if (allow_invitations && data.role != 'ORGANIZER' && !data.noreply)
	reply_selected++;
	}
	}

	// make sure comment box is visible if at least one attendee has reply enabled
	// or global "send invitations" checkbox is checked
	$('#eventedit .attendees-commentbox')[(reply_selected \|\| invite.checked ? 'show' : 'hide')]();

	// select the correct organizer identity
	var identity_id = 0;
	$.each(settings.identities, function(i,v){
	if (organizer && typeof organizer == 'object' && v == organizer.email) {
	identity_id = i;
	return false;
	}
	});
	$('#edit-identities-list').val(identity_id);
	$('#edit-attendees-form')[(allow_invitations?'show':'hide')]();
	$('#edit-attendee-schedule')[(calendar.freebusy?'show':'hide')]();
	};

	// attachments
	var load_attachments_tab = function()
	{
	rcmail.enable_command('remove-attachment', !calendar.readonly && !event.recurrence_id);
	rcmail.env.deleted_attachments = [];
	// we're sharing some code for uploads handling with app.js
	rcmail.env.attachments = [];
	rcmail.env.compose_id = event.id; // for rcmail.async_upload_form()

	if ($.isArray(event.attachments)) {
	event_show_attachments(event.attachments, $('#edit-attachments'), event, true);
	}
	else {
	$('#edit-attachments > ul').empty();
	// fetch attachments, some drivers doesn't set 'attachments' array for event?
	}
	};

	// init dialog buttons
	var buttons = [];

	// save action
	buttons.push({
	text: rcmail.gettext('save', 'calendar'),
	'class': 'mainaction',
	click: function() {
	var start = parse_datetime(allday.checked ? '12:00' : starttime.val(), startdate.val());
	var end = parse_datetime(allday.checked ? '13:00' : endtime.val(), enddate.val());

	// basic input validatetion
	if (start.getTime() > end.getTime()) {
	alert(rcmail.gettext('invalideventdates', 'calendar'));
	return false;
	}

	// post data to server
	var data = {
	calendar: event.calendar,
	start: date2servertime(start),
	end: date2servertime(end),
	allday: allday.checked?1:0,
	title: title.val(),
	description: description.val(),
	location: location.val(),
	categories: categories.val(),
	vurl: vurl.val(),
	free_busy: freebusy.val(),
	priority: priority.val(),
	sensitivity: sensitivity.val(),
	status: eventstatus.val(),
	recurrence: me.serialize_recurrence(endtime.val()),
	valarms: me.serialize_alarms('#edit-alarms'),
	attendees: event_attendees,
	links: me.selected_event.links,
	deleted_attachments: rcmail.env.deleted_attachments,
	attachments: []
	};

	// uploaded attachments list
	for (var i in rcmail.env.attachments)
	if (i.match(/^rcmfile(.+)/))
	data.attachments.push(RegExp.$1);

	// read attendee roles
	$('select.edit-attendee-role').each(function(i, elem){
	if (data.attendees[i])
	data.attendees[i].role = $(elem).val();
	});

	if (organizer)
	data._identity = $('#edit-identities-list option:selected').val();

	// don't submit attendees if only myself is added as organizer
	if (data.attendees.length == 1 && data.attendees[0].role == 'ORGANIZER' && String(data.attendees[0].email).toLowerCase() == settings.identity.email)
	data.attendees = [];

	// per-attendee notification suppression
	var need_invitation = false;
	if (allow_invitations) {
	$.each(data.attendees, function (i, v) {
	if (v.role != 'ORGANIZER') {
	if ($('input.edit-attendee-reply[value="' + v.email + '"]').prop('checked') \|\| v.cutype == 'RESOURCE') {
	need_invitation = true;
	delete data.attendees[i]['noreply'];
	}
	else if (settings.itip_notify > 0) {
	data.attendees[i].noreply = 1;
	}
	}
	});
	}

	// tell server to send notifications
	if ((data.attendees.length \|\| (event.id && event.attendees.length)) && allow_invitations && (notify.checked \|\| invite.checked \|\| need_invitation)) {
	data._notify = settings.itip_notify;
	data._comment = comment.val();
	}

	data.calendar = calendars.val();

	if (event.id) {
	data.id = event.id;
	if (event.recurrence)
	data._savemode = $('input.edit-recurring-savemode:checked').val();
	if (data.calendar && data.calendar != event.calendar)
	data._fromcalendar = event.calendar;
	}

	update_event(action, data);
	$dialog.dialog("close");
	} // end click:
	});

	if (event.id) {
	buttons.push({
	text: rcmail.gettext('delete', 'calendar'),
	'class': 'delete',
	click: function() {
	me.delete_event(event);
	$dialog.dialog('close');
	}
	});
	}

	buttons.push({
	text: rcmail.gettext('cancel', 'calendar'),
	click: function() {
	$dialog.dialog("close");
	}
	});

	// show/hide tabs according to calendar's feature support
	$('#edit-tab-attendees')[(calendar.attendees?'show':'hide')]();
	$('#edit-tab-resources')[(rcmail.env.calendar_resources?'show':'hide')]();
	$('#edit-tab-attachments')[(calendar.attachments?'show':'hide')]();

	// activate the first tab
	$('#eventtabs').tabs('option', 'active', 0);

	// hack: set task to 'calendar' to make all dialog actions work correctly
	var comm_path_before = rcmail.env.comm_path;
	rcmail.env.comm_path = comm_path_before.replace(/_task=[a-z]+/, '_task=calendar');

	var editform = $("#eventedit");

	// open jquery UI dialog
	$dialog.dialog({
	modal: true,
	resizable: (!bw.ie6 && !bw.ie7), // disable for performance reasons
	closeOnEscape: false,
	title: rcmail.gettext((action == 'edit' ? 'edit_event' : 'new_event'), 'calendar'),
	open: function() {
	editform.attr('aria-hidden', 'false');
	},
	close: function() {
	editform.hide().attr('aria-hidden', 'true').appendTo(document.body);
	$dialog.dialog("destroy").remove();
	rcmail.ksearch_blur();
	freebusy_data = {};
	rcmail.env.comm_path = comm_path_before; // restore comm_path
	if (op_elem)
	$(op_elem).focus();
	},
	buttons: buttons,
	minWidth: 500,
	width: 600
	}).append(editform.show()); // adding form content AFTERWARDS massively speeds up opening on IE6

	// set dialog size according to form content
	me.dialog_resize($dialog.get(0), editform.height() + (bw.ie ? 20 : 0), 550);

	title.select();

	// init other tabs asynchronously
	window.setTimeout(function(){ me.set_recurrence_edit(event); }, exec_deferred);
	if (calendar.attendees)
	window.setTimeout(load_attendees_tab, exec_deferred);
	if (calendar.attachments)
	window.setTimeout(load_attachments_tab, exec_deferred);
	};

	// show event changelog in a dialog
	var event_history_dialog = function(event)
	{
	if (!event.id)
	return false

	// render dialog
	$dialog = $('#eventhistory');

	// close show dialog first
	if ($dialog.is(':ui-dialog'))
	$dialog.dialog('close');

	var buttons = {};
	buttons[rcmail.gettext('close', 'calendar')] = function() {
	$dialog.dialog('close');
	};

	// hide and reset changelog table
	$('#event-changelog-table').children('tbody')
	.html('<tr><td colspan="6"><span class="loading">'+ rcmail.gettext('loading') +'</span></td></tr>');

	// open jquery UI dialog
	$dialog.dialog({
	modal: false,
	resizable: true,
	closeOnEscape: true,
	title: rcmail.gettext('eventchangelog','calendar') + ' - ' + event.title + ', ' + me.event_date_text(event),
	open: function() {
	$dialog.attr('aria-hidden', 'false');
	setTimeout(function(){
	$dialog.parent().find('.ui-button:not(.ui-dialog-titlebar-close)').first().focus();
	}, 5);
	},
	close: function() {
	$dialog.dialog('destroy').attr('aria-hidden', 'true').hide();
	},
	buttons: buttons,
	minWidth: 450,
	width: 650,
	height: 350,
	minHeight: 200,
	})
	.data('event', event)
	.show().children('.compare-button').hide();

	// set dialog size according to content
	// me.dialog_resize($dialog.get(0), $dialog.height(), 650);

	// fetch changelog data
	me.loading_lock = rcmail.set_busy(true, 'loading', me.loading_lock);
	rcmail.http_post('event', { action:'changelog', e:{ id:event.id, calendar:event.calendar } }, me.loading_lock);

	// initialize event handlers for history dialog UI elements
	if (!$dialog.data('initialized')) {
	// compare button
	$dialog.find('.compare-button input').click(function(e) {
	var rev1 = $('#event-changelog-table input.diff-rev1:checked').val(),
	rev2 = $('#event-changelog-table input.diff-rev2:checked').val(),
	event = $('#eventhistory').data('event');

	if (rev1 && rev2 && rev1 != rev2) {
	// swap revisions if the user got it wrong
	if (rev1 > rev2) {
	var tmp = rev2;
	rev2 = rev1;
	rev1 = tmp;
	}

	me.loading_lock = rcmail.set_busy(true, 'loading', me.loading_lock);
	rcmail.http_post('event', { action:'diff', e:{ id:event.id, calendar:event.calendar, rev: rev1+':'+rev2 } }, me.loading_lock);
	}
	else {
	alert('Invalid selection!')
	}
	});

	// delegate handlers for list actions
	$('#event-changelog-table tbody').on('click', 'td.actions a', function(e) {
	var link = $(this),
	action = link.hasClass('restore') ? 'restore' : 'show',
	event = $('#eventhistory').data('event'),
	rev = link.attr('data-rev');

	// ignore clicks on first row (current revision)
	if (link.closest('tr').hasClass('first')) {
	return false;
	}

	// let the user confirm the restore action
	if (action == 'restore' && !confirm(rcmail.gettext('eventrestoreconfirm','calendar').replace('$rev', rev))) {
	return false;
	}

	me.loading_lock = rcmail.set_busy(true, 'loading', me.loading_lock);
	rcmail.http_post('event', { action:action, e:{ id:event.id, calendar:event.calendar, rev: rev } }, me.loading_lock);
	return false;
	});

	$dialog.data('initialized', true);
	}
	};

	// callback from server with changelog data
	var render_event_changelog = function(data)
	{
	var $dialog = $('#eventhistory');

	if (data === false \|\| !data.length) {
	$dialog.dialog('close');
	return
	}

	var i, change, accessible, op_append, first = data.length -1, last = 0,
	op_labels = { APPEND: 'actionappend', MOVE: 'actionmove', DELETE: 'actiondelete' },
	actions = '<a href="#show" class="iconbutton preview" title="'+ rcmail.gettext('showrevision','calendar') +'" data-rev="{rev}" /> ' +
	'<a href="#restore" class="iconbutton restore" title="'+ rcmail.gettext('restore','calendar') + '" data-rev="{rev}" />',
	tbody = $('#event-changelog-table tbody').html('');

	for (i=first; i >= 0; i--) {
	change = data[i];
	accessible = change.date && change.user;

	if (change.op == 'MOVE' && change.folder) {
	op_append = ' ⇢ ' + change.folder;
	}
	else {
	op_append = '';
	}

	$('<tr class="' + (i == first ? 'first' : (i == last ? 'last' : '')) + (accessible ? '' : 'undisclosed') + '">')
	.append('<td class="diff">' + (accessible && change.op != 'DELETE' ?
	'<input type="radio" name="rev1" class="diff-rev1" value="' + change.rev + '" title="" '+ (i == last ? 'checked="checked"' : '') +' /> '+
	'<input type="radio" name="rev2" class="diff-rev2" value="' + change.rev + '" title="" '+ (i == first ? 'checked="checked"' : '') +' /></td>'
	: ''))
	.append('<td class="revision">' + Q(change.rev) + '</td>')
	.append('<td class="date">' + Q(change.date ? format_datetime(parseISO8601(change.date)) : '') + '</td>')
	.append('<td class="user">' + Q(change.user \|\| 'undisclosed') + '</td>')
	.append('<td class="operation" title="' + op_append + '">' + Q(rcmail.gettext(op_labels[change.op] \|\| '', 'calendar') + (op_append ? ' ...' : '')) + '</td>')
	.append('<td class="actions">' + (accessible && change.op != 'DELETE' ? actions.replace(/\{rev\}/g, change.rev) : '') + '</td>')
	.appendTo(tbody);
	}

	if (first > 0)
	$('#eventhistory .compare-button').fadeIn(200);

	// set dialog size according to content
	me.dialog_resize($dialog.get(0), $dialog.height(), 600);
	};

	// callback from server with event diff data
	var event_show_diff = function(data)
	{
	var event = me.selected_event,
	$dialog = $("#eventdiff");

	$dialog.find('div.event-section, div.event-line, h1.event-title-new').hide().data('set', false).find('.index').html('');
	$dialog.find('div.event-section.clone, div.event-line.clone').remove();

	// always show event title and date
	$('.event-title', $dialog).text(event.title).removeClass('event-text-old').show();
	$('.event-date', $dialog).text(me.event_date_text(event)).show();

	// show each property change
	$.each(data.changes, function(i,change) {
	var prop = change.property, r2, html = false,
	row = $('div.event-' + prop, $dialog).first();

	// special case: title
	if (prop == 'title') {
	$('.event-title', $dialog).addClass('event-text-old').text(change.old \|\| '--');
	$('.event-title-new', $dialog).text(change.new \|\| '--').show();
	}

	// no display container for this property
	if (!row.length) {
	return true;
	}

	// clone row if already exists
	if (row.data('set')) {
	r2 = row.clone().addClass('clone').insertAfter(row);
	row = r2;
	}

	// format dates
	if (['start','end','changed'].indexOf(prop) >= 0) {
	if (change.old) change.old_ = me.format_datetime(parseISO8601(change.old));
	if (change.new) change.new_ = me.format_datetime(parseISO8601(change.new));
	}
	// render description text
	else if (prop == 'description') {
	// TODO: show real text diff
	if (!change.diff_ && change.old) change.old_ = text2html(change.old);
	if (!change.diff_ && change.new) change.new_ = text2html(change.new);
	html = true;
	}
	// format attendees struct
	else if (prop == 'attendees') {
	if (change.old) change.old_ = event_attendee_html(change.old);
	if (change.new) change.new_ = event_attendee_html($.extend({}, change.old \|\| {}, change.new));
	html = true;
	}
	// localize priority values
	else if (prop == 'priority') {
	var priolabels = [ '', rcmail.gettext('highest'), rcmail.gettext('high'), '', '', rcmail.gettext('normal'), '', '', rcmail.gettext('low'), rcmail.gettext('lowest') ];
	if (change.old) change.old_ = change.old + ' ' + (priolabels[change.old] \|\| '');
	if (change.new) change.new_ = change.new + ' ' + (priolabels[change.new] \|\| '');
	}
	// localize status
	else if (prop == 'status') {
	var status_lc = String(event.status).toLowerCase();
	if (change.old) change.old_ = rcmail.gettext(String(change.old).toLowerCase(), 'calendar');
	if (change.new) change.new_ = rcmail.gettext(String(change.new).toLowerCase(), 'calendar');
	}

	// format attachments struct
	if (prop == 'attachments') {
	if (change.old) event_show_attachments([change.old], row.children('.event-text-old'), event, false);
	else row.children('.event-text-old').text('--');
	if (change.new) event_show_attachments([$.extend({}, change.old \|\| {}, change.new)], row.children('.event-text-new'), event, false);
	else row.children('.event-text-new').text('--');
	// remove click handler as we're currentyl not able to display the according attachment contents
	$('.attachmentslist li a', row).unbind('click').removeAttr('href');
	}
	else if (change.diff_) {
	row.children('.event-text-diff').html(change.diff_);
	row.children('.event-text-old, .event-text-new').hide();
	}
	else {
	if (!html) {
	// escape HTML characters
	change.old_ = Q(change.old_ \|\| change.old \|\| '--')
	change.new_ = Q(change.new_ \|\| change.new \|\| '--')
	}
	row.children('.event-text-old').html(change.old_ \|\| change.old \|\| '--');
	row.children('.event-text-new').html(change.new_ \|\| change.new \|\| '--');
	}

	// display index number
	if (typeof change.index != 'undefined') {
	row.find('.index').html('(' + change.index + ')');
	}

	row.show().data('set', true);

	// hide event-date line
	if (prop == 'start' \|\| prop == 'end')
	$('.event-date', $dialog).hide();
	});

	var buttons = {};
	buttons[rcmail.gettext('close', 'calendar')] = function() {
	$dialog.dialog('close');
	};

	// open jquery UI dialog
	$dialog.dialog({
	modal: false,
	resizable: true,
	closeOnEscape: true,
	title: rcmail.gettext('eventdiff','calendar').replace('$rev', data.rev) + ' - ' + event.title,
	open: function() {
	$dialog.attr('aria-hidden', 'false');
	setTimeout(function(){
	$dialog.parent().find('.ui-button:not(.ui-dialog-titlebar-close)').first().focus();
	}, 5);
	},
	close: function() {
	$dialog.dialog('destroy').attr('aria-hidden', 'true').hide();
	},
	buttons: buttons,
	minWidth: 320,
	width: 450
	}).show();

	// set dialog size according to content
	me.dialog_resize($dialog.get(0), $dialog.height(), 400);
	};

	// exports
	this.event_show_diff = event_show_diff;
	this.event_show_dialog = event_show_dialog;
	this.event_history_dialog = event_history_dialog;
	this.render_event_changelog = render_event_changelog;

	// open a dialog to display detailed free-busy information and to find free slots
	var event_freebusy_dialog = function()
	{
	var $dialog = $('#eventfreebusy'),
	event = me.selected_event;

	if ($dialog.is(':ui-dialog'))
	$dialog.dialog('close');

	if (!event_attendees.length)
	return false;

	// set form elements
	var allday = $('#edit-allday').get(0);
	var duration = Math.round((event.end.getTime() - event.start.getTime()) / 1000);
	freebusy_ui.startdate = $('#schedule-startdate').val($.fullCalendar.formatDate(event.start, settings['date_format'])).data('duration', duration);
	freebusy_ui.starttime = $('#schedule-starttime').val($.fullCalendar.formatDate(event.start, settings['time_format'])).show();
	freebusy_ui.enddate = $('#schedule-enddate').val($.fullCalendar.formatDate(event.end, settings['date_format']));
	freebusy_ui.endtime = $('#schedule-endtime').val($.fullCalendar.formatDate(event.end, settings['time_format'])).show();

	if (allday.checked) {
	freebusy_ui.starttime.val("12:00").hide();
	freebusy_ui.endtime.val("13:00").hide();
	event.allDay = true;
	}

	// read attendee roles from drop-downs
	$('select.edit-attendee-role').each(function(i, elem){
	if (event_attendees[i])
	event_attendees[i].role = $(elem).val();
	});

	// render time slots
	var now = new Date(), fb_start = new Date(), fb_end = new Date();
	fb_start.setTime(event.start);
	fb_start.setHours(0); fb_start.setMinutes(0); fb_start.setSeconds(0); fb_start.setMilliseconds(0);
	fb_end.setTime(fb_start.getTime() + DAY_MS);

	freebusy_data = { required:{}, all:{} };
	freebusy_ui.loading = 1; // prevent render_freebusy_grid() to load data yet
	freebusy_ui.numdays = Math.max(allday.checked ? 14 : 1, Math.ceil(duration * 2 / 86400));
	freebusy_ui.interval = allday.checked ? 1440 : 60;
	freebusy_ui.start = fb_start;
	freebusy_ui.end = new Date(freebusy_ui.start.getTime() + DAY_MS * freebusy_ui.numdays);
	render_freebusy_grid(0);

	// render list of attendees
	freebusy_ui.attendees = {};
	var domid, dispname, data, role_html, list_html = '';
	for (var i=0; i < event_attendees.length; i++) {
	data = event_attendees[i];
	dispname = Q(data.name \|\| data.email);
	domid = String(data.email).replace(rcmail.identifier_expr, '');
	role_html = '<a class="attendee-role-toggle" id="rcmlia' + domid + '" title="' + Q(rcmail.gettext('togglerole', 'calendar')) + '"> </a>';
	list_html += '<div class="attendee ' + String(data.role).toLowerCase() + '" id="rcmli' + domid + '">' + role_html + dispname + '</div>';

	// clone attendees data for local modifications
	freebusy_ui.attendees[i] = freebusy_ui.attendees[domid] = $.extend({}, data);
	}

	// add total row
	list_html += '<div class="attendee spacer"> </div>';
	list_html += '<div class="attendee total">' + rcmail.gettext('reqallattendees','calendar') + '</div>';

	$('#schedule-attendees-list').html(list_html)
	.unbind('click.roleicons')
	.bind('click.roleicons', function(e){
	// toggle attendee status upon click on icon
	if (e.target.id && e.target.id.match(/rcmlia(.+)/)) {
	var attendee, domid = RegExp.$1,
	roles = [ 'REQ-PARTICIPANT', 'OPT-PARTICIPANT', 'NON-PARTICIPANT', 'CHAIR' ];
	if ((attendee = freebusy_ui.attendees[domid]) && attendee.role != 'ORGANIZER') {
	var req = attendee.role != 'OPT-PARTICIPANT' && attendee.role != 'NON-PARTICIPANT';
	var j = $.inArray(attendee.role, roles);
	j = (j+1) % roles.length;
	attendee.role = roles[j];
	$(e.target).parent().attr('class', 'attendee '+String(attendee.role).toLowerCase());

	// update total display if required-status changed
	if (req != (roles[j] != 'OPT-PARTICIPANT' && roles[j] != 'NON-PARTICIPANT')) {
	compute_freebusy_totals();
	update_freebusy_display(attendee.email);
	}
	}
	}

	return false;
	});

	// enable/disable buttons
	$('#shedule-find-prev').button('option', 'disabled', (fb_start.getTime() < now.getTime()));

	// dialog buttons
	var buttons = {};

	buttons[rcmail.gettext('select', 'calendar')] = function() {
	$('#edit-startdate').val(freebusy_ui.startdate.val());
	$('#edit-starttime').val(freebusy_ui.starttime.val());
	$('#edit-enddate').val(freebusy_ui.enddate.val());
	$('#edit-endtime').val(freebusy_ui.endtime.val());

	// write role changes back to main dialog
	$('select.edit-attendee-role').each(function(i, elem){
	if (event_attendees[i] && freebusy_ui.attendees[i]) {
	event_attendees[i].role = freebusy_ui.attendees[i].role;
	$(elem).val(event_attendees[i].role);
	}
	});

	if (freebusy_ui.needsupdate)
	update_freebusy_status(me.selected_event);
	freebusy_ui.needsupdate = false;
	$dialog.dialog("close");
	};

	buttons[rcmail.gettext('cancel', 'calendar')] = function() {
	$dialog.dialog("close");
	};

	$dialog.dialog({
	modal: true,
	resizable: true,
	closeOnEscape: (!bw.ie6 && !bw.ie7),
	title: rcmail.gettext('scheduletime', 'calendar'),
	open: function() {
	$dialog.attr('aria-hidden', 'false').find('#shedule-find-next, #shedule-find-prev').not(':disabled').first().focus();
	},
	close: function() {
	if (bw.ie6)
	$("#edit-attendees-table").css('visibility','visible');
	$dialog.dialog("destroy").attr('aria-hidden', 'true').hide();
	// TODO: focus opener button
	},
	resizeStop: function() {
	render_freebusy_overlay();
	},
	buttons: buttons,
	minWidth: 640,
	width: 850
	}).show();

	// hide edit dialog on IE6 because of drop-down elements
	if (bw.ie6)
	$("#edit-attendees-table").css('visibility','hidden');

	// adjust dialog size to fit grid without scrolling
	var gridw = $('#schedule-freebusy-times').width();
	var overflow = gridw - $('#attendees-freebusy-table td.times').width() + 1;
	me.dialog_resize($dialog.get(0), $dialog.height() + (bw.ie ? 20 : 0), 800 + Math.max(0, overflow));

	// fetch data from server
	freebusy_ui.loading = 0;
	load_freebusy_data(freebusy_ui.start, freebusy_ui.interval);
	};

	// render an HTML table showing free-busy status for all the event attendees
	var render_freebusy_grid = function(delta)
	{
	if (delta) {
	freebusy_ui.start.setTime(freebusy_ui.start.getTime() + DAY_MS * delta);
	fix_date(freebusy_ui.start);

	// skip weekends if in workinhoursonly-mode
	if (Math.abs(delta) == 1 && freebusy_ui.workinhoursonly) {
	while (is_weekend(freebusy_ui.start))
	freebusy_ui.start.setTime(freebusy_ui.start.getTime() + DAY_MS * delta);
	fix_date(freebusy_ui.start);
	}

	freebusy_ui.end = new Date(freebusy_ui.start.getTime() + DAY_MS * freebusy_ui.numdays);
	}

	var dayslots = Math.floor(1440 / freebusy_ui.interval);
	var date_format = 'ddd '+ (dayslots <= 2 ? settings.date_short : settings.date_format);
	var lastdate, datestr, css,
	curdate = new Date(),
	allday = (freebusy_ui.interval == 1440),
	times_css = (allday ? 'allday ' : ''),
	dates_row = '<tr class="dates">',
	times_row = '<tr class="times">',
	slots_row = '';
	for (var s = 0, t = freebusy_ui.start.getTime(); t < freebusy_ui.end.getTime(); s++) {
	curdate.setTime(t);
	datestr = fc.fullCalendar('formatDate', curdate, date_format);
	if (datestr != lastdate) {
	if (lastdate && !allday) break;
	dates_row += '<th colspan="' + dayslots + '" class="boxtitle date' + $.fullCalendar.formatDate(curdate, 'ddMMyyyy') + '">' + Q(datestr) + '</th>';
	lastdate = datestr;
	}

	// set css class according to working hours
	css = is_weekend(curdate) \|\| (freebusy_ui.interval <= 60 && !is_workinghour(curdate)) ? 'offhours' : 'workinghours';
	times_row += '<td class="' + times_css + css + '" id="t-' + Math.floor(t/1000) + '">' + Q(allday ? rcmail.gettext('all-day','calendar') : $.fullCalendar.formatDate(curdate, settings['time_format'])) + '</td>';
	slots_row += '<td class="' + css + ' unknown"> </td>';

	t += freebusy_ui.interval * 60000;
	}
	dates_row += '</tr>';
	times_row += '</tr>';

	// render list of attendees
	var domid, data, list_html = '', times_html = '';
	for (var i=0; i < event_attendees.length; i++) {
	data = event_attendees[i];
	domid = String(data.email).replace(rcmail.identifier_expr, '');
	times_html += '<tr id="fbrow' + domid + '">' + slots_row + '</tr>';
	}

	// add line for all/required attendees
	times_html += '<tr class="spacer"><td colspan="' + (dayslots * freebusy_ui.numdays) + '"> </td>';
	times_html += '<tr id="fbrowall">' + slots_row + '</tr>';

	var table = $('#schedule-freebusy-times');
	table.children('thead').html(dates_row + times_row);
	table.children('tbody').html(times_html);

	// initialize event handlers on grid
	if (!freebusy_ui.grid_events) {
	freebusy_ui.grid_events = true;
	table.children('thead').click(function(e){
	// move event to the clicked date/time
	if (e.target.id && e.target.id.match(/t-(\d+)/)) {
	var newstart = new Date(RegExp.$1 * 1000);
	// set time to 00:00
	if (me.selected_event.allDay) {
	newstart.setMinutes(0);
	newstart.setHours(0);
	}
	update_freebusy_dates(newstart, new Date(newstart.getTime() + freebusy_ui.startdate.data('duration') * 1000));
	render_freebusy_overlay();
	}
	})
	}

	// if we have loaded free-busy data, show it
	if (!freebusy_ui.loading) {
	if (freebusy_ui.start < freebusy_data.start \|\| freebusy_ui.end > freebusy_data.end \|\| freebusy_ui.interval != freebusy_data.interval) {
	load_freebusy_data(freebusy_ui.start, freebusy_ui.interval);
	}
	else {
	for (var email, i=0; i < event_attendees.length; i++) {
	if ((email = event_attendees[i].email))
	update_freebusy_display(email);
	}
	}
	}

	// render current event date/time selection over grid table
	// use timeout to let the dom attributes (width/height/offset) be set first
	window.setTimeout(function(){ render_freebusy_overlay(); }, 10);
	};

	// render overlay element over the grid to visiualize the current event date/time
	var render_freebusy_overlay = function()
	{
	var overlay = $('#schedule-event-time');
	if (me.selected_event.end.getTime() <= freebusy_ui.start.getTime() \|\| me.selected_event.start.getTime() >= freebusy_ui.end.getTime()) {
	overlay.hide();
	if (overlay.data('isdraggable'))
	overlay.draggable('disable');
	}
	else {
	var table = $('#schedule-freebusy-times'),
	width = 0,
	pos = { top:table.children('thead').height(), left:0 },
	eventstart = date2unixtime(clone_date(me.selected_event.start, me.selected_event.allDay?1:0)),
	eventend = date2unixtime(clone_date(me.selected_event.end, me.selected_event.allDay?2:0)) - 60,
	slotstart = date2unixtime(freebusy_ui.start),
	slotsize = freebusy_ui.interval * 60,
	slotend, fraction, $cell;

	// iterate through slots to determine position and size of the overlay
	table.children('thead').find('td').each(function(i, cell){
	slotend = slotstart + slotsize - 1;
	// event starts in this slot: compute left
	if (eventstart >= slotstart && eventstart <= slotend) {
	fraction = 1 - (slotend - eventstart) / slotsize;
	pos.left = Math.round(cell.offsetLeft + cell.offsetWidth * fraction);
	}
	// event ends in this slot: compute width
	if (eventend >= slotstart && eventend <= slotend) {
	fraction = 1 - (slotend - eventend) / slotsize;
	width = Math.round(cell.offsetLeft + cell.offsetWidth * fraction) - pos.left;
	}

	slotstart = slotstart + slotsize;
	});

	if (!width)
	width = table.width() - pos.left;

	// overlay is visible
	if (width > 0) {
	overlay.css({ width: (width-5)+'px', height:(table.children('tbody').height() - 4)+'px', left:pos.left+'px', top:pos.top+'px' }).show();

	// configure draggable
	if (!overlay.data('isdraggable')) {
	overlay.draggable({
	axis: 'x',
	scroll: true,
	stop: function(e, ui){
	// convert pixels to time
	var px = ui.position.left;
	var range_p = $('#schedule-freebusy-times').width();
	var range_t = freebusy_ui.end.getTime() - freebusy_ui.start.getTime();
	var newstart = new Date(freebusy_ui.start.getTime() + px * (range_t / range_p));
	newstart.setSeconds(0); newstart.setMilliseconds(0);
	// snap to day boundaries
	if (me.selected_event.allDay) {
	if (newstart.getHours() >= 12) // snap to next day
	newstart.setTime(newstart.getTime() + DAY_MS);
	newstart.setMinutes(0);
	newstart.setHours(0);
	}
	else {
	// round to 5 minutes
	var round = newstart.getMinutes() % 5;
	if (round > 2.5) newstart.setTime(newstart.getTime() + (5 - round) * 60000);
	else if (round > 0) newstart.setTime(newstart.getTime() - round * 60000);
	}
	// update event times and display
	update_freebusy_dates(newstart, new Date(newstart.getTime() + freebusy_ui.startdate.data('duration') * 1000));
	if (me.selected_event.allDay)
	render_freebusy_overlay();
	}
	}).data('isdraggable', true);
	}
	else
	overlay.draggable('enable');
	}
	else
	overlay.draggable('disable').hide();
	}

	};


	// fetch free-busy information for each attendee from server
	var load_freebusy_data = function(from, interval)
	{
	var start = new Date(from.getTime() - DAY_MS * 2); // start 2 days before event
	fix_date(start);
	var end = new Date(start.getTime() + DAY_MS * Math.max(14, freebusy_ui.numdays + 7)); // load min. 14 days
	freebusy_ui.numrequired = 0;
	freebusy_data.all = [];
	freebusy_data.required = [];

	// load free-busy information for every attendee
	var domid, email;
	for (var i=0; i < event_attendees.length; i++) {
	if ((email = event_attendees[i].email)) {
	domid = String(email).replace(rcmail.identifier_expr, '');
	$('#rcmli' + domid).addClass('loading');
	freebusy_ui.loading++;

	$.ajax({
	type: 'GET',
	dataType: 'json',
	url: rcmail.url('freebusy-times'),
	data: { email:email, start:date2servertime(clone_date(start, 1)), end:date2servertime(clone_date(end, 2)), interval:interval, _remote:1 },
	success: function(data) {
	freebusy_ui.loading--;

	// find attendee
	var attendee = null;
	for (var i=0; i < event_attendees.length; i++) {
	if (freebusy_ui.attendees[i].email == data.email) {
	attendee = freebusy_ui.attendees[i];
	break;
	}
	}

	// copy data to member var
	var ts, req = attendee.role != 'OPT-PARTICIPANT';
	freebusy_data.start = parseISO8601(data.start);
	freebusy_data[data.email] = {};
	for (var i=0; i < data.slots.length; i++) {
	ts = data.times[i] + '';
	freebusy_data[data.email][ts] = data.slots[i];

	// set totals
	if (!freebusy_data.required[ts])
	freebusy_data.required[ts] = [0,0,0,0];
	if (req)
	freebusy_data.required[ts][data.slots[i]]++;

	if (!freebusy_data.all[ts])
	freebusy_data.all[ts] = [0,0,0,0];
	freebusy_data.all[ts][data.slots[i]]++;
	}
	freebusy_data.end = parseISO8601(data.end);
	freebusy_data.interval = data.interval;

	// hide loading indicator
	var domid = String(data.email).replace(rcmail.identifier_expr, '');
	$('#rcmli' + domid).removeClass('loading');

	// update display
	update_freebusy_display(data.email);
	}
	});

	// count required attendees
	if (freebusy_ui.attendees[i].role != 'OPT-PARTICIPANT')
	freebusy_ui.numrequired++;
	}
	}
	};

	// re-calculate total status after role change
	var compute_freebusy_totals = function()
	{
	freebusy_ui.numrequired = 0;
	freebusy_data.all = [];
	freebusy_data.required = [];

	var email, req, status;
	for (var i=0; i < event_attendees.length; i++) {
	if (!(email = event_attendees[i].email))
	continue;

	req = freebusy_ui.attendees[i].role != 'OPT-PARTICIPANT';
	if (req)
	freebusy_ui.numrequired++;

	for (var ts in freebusy_data[email]) {
	if (!freebusy_data.required[ts])
	freebusy_data.required[ts] = [0,0,0,0];
	if (!freebusy_data.all[ts])
	freebusy_data.all[ts] = [0,0,0,0];

	status = freebusy_data[email][ts];
	freebusy_data.all[ts][status]++;

	if (req)
	freebusy_data.required[ts][status]++;
	}
	}
	};

	// update free-busy grid with status loaded from server
	var update_freebusy_display = function(email)
	{
	var status_classes = ['unknown','free','busy','tentative','out-of-office'];
	var domid = String(email).replace(rcmail.identifier_expr, '');
	var row = $('#fbrow' + domid);
	var rowall = $('#fbrowall').children();
	var dateonly = freebusy_ui.interval > 60,
	t, ts = date2timestring(freebusy_ui.start, dateonly),
	curdate = new Date(),
	fbdata = freebusy_data[email];

	if (fbdata && fbdata[ts] !== undefined && row.length) {
	t = freebusy_ui.start.getTime();
	row.children().each(function(i, cell){
	curdate.setTime(t);
	ts = date2timestring(curdate, dateonly);
	cell.className = cell.className.replace('unknown', fbdata[ts] ? status_classes[fbdata[ts]] : 'unknown');

	// also update total row if all data was loaded
	if (freebusy_ui.loading == 0 && freebusy_data.all[ts] && (cell = rowall.get(i))) {
	var workinghours = cell.className.indexOf('workinghours') >= 0;
	var all_status = freebusy_data.all[ts][2] ? 'busy' : 'unknown';
	req_status = freebusy_data.required[ts][2] ? 'busy' : 'free';
	for (var j=1; j < status_classes.length; j++) {
	if (freebusy_ui.numrequired && freebusy_data.required[ts][j] >= freebusy_ui.numrequired)
	req_status = status_classes[j];
	if (freebusy_data.all[ts][j] == event_attendees.length)
	all_status = status_classes[j];
	}

	cell.className = (workinghours ? 'workinghours ' : 'offhours ') + req_status + ' all-' + all_status;
	}

	t += freebusy_ui.interval * 60000;
	});
	}
	};

	// write changed event date/times back to form fields
	var update_freebusy_dates = function(start, end)
	{
	// fix all-day evebt times
	if (me.selected_event.allDay) {
	var numdays = Math.floor((me.selected_event.end.getTime() - me.selected_event.start.getTime()) / DAY_MS);
	start.setHours(12);
	start.setMinutes(0);
	end.setTime(start.getTime() + numdays * DAY_MS);
	end.setHours(13);
	end.setMinutes(0);
	}
	me.selected_event.start = start;
	me.selected_event.end = end;
	freebusy_ui.startdate.val($.fullCalendar.formatDate(start, settings['date_format']));
	freebusy_ui.starttime.val($.fullCalendar.formatDate(start, settings['time_format']));
	freebusy_ui.enddate.val($.fullCalendar.formatDate(end, settings['date_format']));
	freebusy_ui.endtime.val($.fullCalendar.formatDate(end, settings['time_format']));
	freebusy_ui.needsupdate = true;
	};

	// attempt to find a time slot where all attemdees are available
	var freebusy_find_slot = function(dir)
	{
	// exit if free-busy data isn't available yet
	if (!freebusy_data \|\| !freebusy_data.start)
	return false;

	var event = me.selected_event,
	eventstart = clone_date(event.start, event.allDay ? 1 : 0).getTime(), // calculate with integers
	eventend = clone_date(event.end, event.allDay ? 2 : 0).getTime(),
	duration = eventend - eventstart - (event.allDay ? HOUR_MS : 0), /* make sure we don't cross day borders on DST change */
	sinterval = freebusy_data.interval * 60000,
	intvlslots = 1,
	numslots = Math.ceil(duration / sinterval),
	checkdate, slotend, email, ts, slot, slotdate = new Date();

	// shift event times to next possible slot
	eventstart += sinterval * intvlslots * dir;
	eventend += sinterval * intvlslots * dir;

	// iterate through free-busy slots and find candidates
	var candidatecount = 0, candidatestart = candidateend = success = false;
	for (slot = dir > 0 ? freebusy_data.start.getTime() : freebusy_data.end.getTime() - sinterval;
	(dir > 0 && slot < freebusy_data.end.getTime()) \|\| (dir < 0 && slot >= freebusy_data.start.getTime());
	slot += sinterval * dir) {
	slotdate.setTime(slot);
	// fix slot if just crossed a DST change
	if (event.allDay) {
	fix_date(slotdate);
	slot = slotdate.getTime();
	}
	slotend = slot + sinterval;

	if ((dir > 0 && slotend <= eventstart) \|\| (dir < 0 && slot >= eventend)) // skip
	continue;

	// respect workingours setting
	if (freebusy_ui.workinhoursonly) {
	if (is_weekend(slotdate) \|\| (freebusy_data.interval <= 60 && !is_workinghour(slotdate))) { // skip off-hours
	candidatestart = candidateend = false;
	candidatecount = 0;
	continue;
	}
	}

	if (!candidatestart)
	candidatestart = slot;

	// check freebusy data for all attendees
	ts = date2timestring(slotdate, freebusy_data.interval > 60);
	for (var i=0; i < event_attendees.length; i++) {
	if (freebusy_ui.attendees[i].role != 'OPT-PARTICIPANT' && (email = freebusy_ui.attendees[i].email) && freebusy_data[email] && freebusy_data[email][ts] > 1) {
	candidatestart = candidateend = false;
	break;
	}
	}

	// occupied slot
	if (!candidatestart) {
	slot += Math.max(0, intvlslots - candidatecount - 1) * sinterval * dir;
	candidatecount = 0;
	continue;
	}

	// set candidate end to slot end time
	candidatecount++;
	if (dir < 0 && !candidateend)
	candidateend = slotend;

	// if candidate is big enough, this is it!
	if (candidatecount == numslots) {
	if (dir > 0) {
	event.start.setTime(candidatestart);
	event.end.setTime(candidatestart + duration);
	}
	else {
	event.end.setTime(candidateend);
	event.start.setTime(candidateend - duration);
	}
	success = true;
	break;
	}
	}

	// update event date/time display
	if (success) {
	update_freebusy_dates(event.start, event.end);

	// move freebusy grid if necessary
	var offset = Math.ceil((event.start.getTime() - freebusy_ui.end.getTime()) / DAY_MS);
	if (event.start.getTime() >= freebusy_ui.end.getTime())
	render_freebusy_grid(Math.max(1, offset));
	else if (event.end.getTime() <= freebusy_ui.start.getTime())
	render_freebusy_grid(Math.min(-1, offset));
	else
	render_freebusy_overlay();

	var now = new Date();
	$('#shedule-find-prev').button('option', 'disabled', (event.start.getTime() < now.getTime()));

	// speak new selection
	rcmail.display_message(rcmail.gettext('suggestedslot', 'calendar') + ': ' + me.event_date_text(event, true), 'voice');
	}
	else {
	alert(rcmail.gettext('noslotfound','calendar'));
	}
	};


	// update event properties and attendees availability if event times have changed
	var event_times_changed = function()
	{
	if (me.selected_event) {
	var allday = $('#edit-allday').get(0);
	me.selected_event.allDay = allday.checked;
	me.selected_event.start = parse_datetime(allday.checked ? '12:00' : $('#edit-starttime').val(), $('#edit-startdate').val());
	me.selected_event.end = parse_datetime(allday.checked ? '13:00' : $('#edit-endtime').val(), $('#edit-enddate').val());
	if (event_attendees)
	freebusy_ui.needsupdate = true;
	$('#edit-startdate').data('duration', Math.round((me.selected_event.end.getTime() - me.selected_event.start.getTime()) / 1000));
	}
	};


	// add the given list of participants
	var add_attendees = function(names, params)
	{
	names = explode_quoted_string(names.replace(/,\s*$/, ''), ',');

	// parse name/email pairs
	var item, email, name, success = false;
	for (var i=0; i < names.length; i++) {
	email = name = '';
	item = $.trim(names[i]);

	if (!item.length) {
	continue;
	} // address in brackets without name (do nothing)
	else if (item.match(/^<[^@]+@[^>]+>$/)) {
	email = item.replace(/[<>]/g, '');
	} // address without brackets and without name (add brackets)
	else if (rcube_check_email(item)) {
	email = item;
	} // address with name
	else if (item.match(/([^\s<@]+@[^>]+)>*$/)) {
	email = RegExp.$1;
	name = item.replace(email, '').replace(/^["\s<>]+/, '').replace(/["\s<>]+$/, '');
	}
	if (email) {
	add_attendee($.extend({ email:email, name:name }, params));
	success = true;
	}
	else {
	alert(rcmail.gettext('noemailwarning'));
	}
	}

	return success;
	};

	// add the given attendee to the list
	var add_attendee = function(data, readonly, before)
	{
	if (!me.selected_event)
	return false;

	// check for dupes...
	var exists = false;
	$.each(event_attendees, function(i, v){ exists \|= (v.email == data.email); });
	if (exists)
	return false;

	var calendar = me.selected_event && me.calendars[me.selected_event.calendar] ? me.calendars[me.selected_event.calendar] : me.calendars[me.selected_calendar];

	var dispname = Q(data.name \|\| data.email);
	if (data.email)
	dispname = '<a href="mailto:' + data.email + '" title="' + Q(data.email) + '" class="mailtolink" data-cutype="' + data.cutype + '">' + dispname + '</a>';

	// role selection
	var organizer = data.role == 'ORGANIZER';
	var opts = {};
	if (organizer)
	opts.ORGANIZER = rcmail.gettext('calendar.roleorganizer');
	opts['REQ-PARTICIPANT'] = rcmail.gettext('calendar.rolerequired');
	opts['OPT-PARTICIPANT'] = rcmail.gettext('calendar.roleoptional');
	opts['NON-PARTICIPANT'] = rcmail.gettext('calendar.rolenonparticipant');

	if (data.cutype != 'RESOURCE')
	opts['CHAIR'] = rcmail.gettext('calendar.rolechair');

	if (organizer && !readonly)
	dispname = rcmail.env['identities-selector'];

	var select = '<select class="edit-attendee-role"' + (organizer \|\| readonly ? ' disabled="true"' : '') + ' aria-label="' + rcmail.gettext('role','calendar') + '">';
	for (var r in opts)
	select += '<option value="'+ r +'" class="' + r.toLowerCase() + '"' + (data.role == r ? ' selected="selected"' : '') +'>' + Q(opts[r]) + '</option>';
	select += '</select>';

	// availability
	var avail = data.email ? 'loading' : 'unknown';

	// delete icon
	var icon = rcmail.env.deleteicon ? '<img src="' + rcmail.env.deleteicon + '" alt="" />' : rcmail.gettext('delete');
	var dellink = '<a href="#delete" class="iconlink delete deletelink" title="' + Q(rcmail.gettext('delete')) + '">' + icon + '</a>';
	var tooltip = data.status \|\| '';

	// send invitation checkbox
	var invbox = '<input type="checkbox" class="edit-attendee-reply" value="' + Q(data.email) +'" title="' + Q(rcmail.gettext('calendar.sendinvitations')) + '" '
	+ (!data.noreply && settings.itip_notify & 1 ? 'checked="checked" ' : '') + '/>';

	if (data['delegated-to'])
	tooltip = rcmail.gettext('delegatedto', 'calendar') + data['delegated-to'];
	else if (data['delegated-from'])
	tooltip = rcmail.gettext('delegatedfrom', 'calendar') + data['delegated-from'];

	// add expand button for groups
	if (data.cutype == 'GROUP') {
	dispname += ' <a href="#expand" data-email="' + Q(data.email) + '" class="iconbutton add expandlink" title="' + rcmail.gettext('expandattendeegroup','libcalendaring') + '">' +
	rcmail.gettext('expandattendeegroup','libcalendaring') + '</a>';
	}

	var img_src = rcmail.assets_path('program/resources/blank.gif');
	var html = '<td class="role">' + select + '</td>' +
	'<td class="name"><span class="attendee-name">' + dispname + '</span></td>' +
	'<td class="availability"><img src="' + img_src + '" class="availabilityicon ' + avail + '" data-email="' + data.email + '" alt="" /></td>' +
	'<td class="confirmstate"><span class="' + String(data.status).toLowerCase() + '" title="' + Q(tooltip) + '">' + Q(data.status \|\| '') + '</span></td>' +
	(data.cutype != 'RESOURCE' ? '<td class="invite">' + (organizer \|\| readonly \|\| !invbox ? '' : invbox) + '</td>' : '') +
	'<td class="options">' + (organizer \|\| readonly ? '' : dellink) + '</td>';

	var table = rcmail.env.calendar_resources && data.cutype == 'RESOURCE' ? resources_list : attendees_list;
	var tr = $('<tr>')
	.addClass(String(data.role).toLowerCase())
	.html(html);

	if (before)
	tr.insertBefore(before)
	else
	tr.appendTo(table);

	tr.find('a.deletelink').click({ id:(data.email \|\| data.name) }, function(e) { remove_attendee(this, e.data.id); return false; });
	tr.find('a.mailtolink').click(event_attendee_click);
	tr.find('a.expandlink').click(data, function(e) { me.expand_attendee_group(e, add_attendee, remove_attendee); return false; });
	tr.find('input.edit-attendee-reply').click(function() {
	var enabled = $('#edit-attendees-invite:checked').length \|\| $('input.edit-attendee-reply:checked').length;
	$('#eventedit .attendees-commentbox')[enabled ? 'show' : 'hide']();
	});

	// select organizer identity
	if (data.identity_id)
	$('#edit-identities-list').val(data.identity_id);

	// check free-busy status
	if (avail == 'loading') {
	check_freebusy_status(tr.find('img.availabilityicon'), data.email, me.selected_event);
	}

	event_attendees.push(data);
	return true;
	};

	// iterate over all attendees and update their free-busy status display
	var update_freebusy_status = function(event)
	{
	attendees_list.find('img.availabilityicon').each(function(i,v) {
	var email, icon = $(this);
	if (email = icon.attr('data-email'))
	check_freebusy_status(icon, email, event);
	});

	freebusy_ui.needsupdate = false;
	};

	// load free-busy status from server and update icon accordingly
	var check_freebusy_status = function(icon, email, event)
	{
	var calendar = event.calendar && me.calendars[event.calendar] ? me.calendars[event.calendar] : { freebusy:false };
	if (!calendar.freebusy) {
	$(icon).attr('class', 'availabilityicon unknown');
	return;
	}

	icon = $(icon).attr('class', 'availabilityicon loading');

	$.ajax({
	type: 'GET',
	dataType: 'html',
	url: rcmail.url('freebusy-status'),
	data: { email:email, start:date2servertime(clone_date(event.start, event.allDay?1:0)), end:date2servertime(clone_date(event.end, event.allDay?2:0)), _remote: 1 },
	success: function(status){
	var avail = String(status).toLowerCase();
	icon.removeClass('loading').addClass(avail).attr('alt', rcmail.gettext('avail' + avail, 'calendar'));
	},
	error: function(){
	icon.removeClass('loading').addClass('unknown').attr('alt', rcmail.gettext('availunknown', 'calendar'));
	}
	});
	};

	// remove an attendee from the list
	var remove_attendee = function(elem, id)
	{
	$(elem).closest('tr').remove();
	event_attendees = $.grep(event_attendees, function(data){ return (data.name != id && data.email != id) });
	};

	// open a dialog to display detailed free-busy information and to find free slots
	var event_resources_dialog = function(search)
	{
	var $dialog = $('#eventresourcesdialog');

	if ($dialog.is(':ui-dialog'))
	$dialog.dialog('close');

	// dialog buttons
	var buttons = {};

	buttons[rcmail.gettext('addresource', 'calendar')] = function() {
	rcmail.command('add-resource');
	};

	buttons[rcmail.gettext('close')] = function() {
	$dialog.dialog("close");
	};

	// open jquery UI dialog
	$dialog.dialog({
	modal: true,
	resizable: true,
	closeOnEscape: true,
	title: rcmail.gettext('findresources', 'calendar'),
	open: function() {
	$dialog.attr('aria-hidden', 'false');
	},
	close: function() {
	$dialog.dialog('destroy').attr('aria-hidden', 'true').hide();
	},
	resize: function(e) {
	var container = $(rcmail.gui_objects.resourceinfocalendar);
	container.fullCalendar('option', 'height', container.height() + 4);
	},
	buttons: buttons,
	width: 900,
	height: 500
	}).show();

	// define add-button as main action
	$('.ui-dialog-buttonset .ui-button', $dialog.parent()).first().addClass('mainaction').attr('id', 'rcmbtncalresadd');

	me.dialog_resize($dialog.get(0), 540, Math.min(1000, $(window).width() - 50));

	// set search query
	$('#resourcesearchbox').val(search \|\| '');

	// initialize the treelist widget
	if (!resources_treelist) {
	resources_treelist = new rcube_treelist_widget(rcmail.gui_objects.resourceslist, {
	id_prefix: 'rcres',
	id_encode: rcmail.html_identifier_encode,
	id_decode: rcmail.html_identifier_decode,
	selectable: true,
	save_state: true
	});
	resources_treelist.addEventListener('select', function(node) {
	if (resources_data[node.id]) {
	resource_showinfo(resources_data[node.id]);
	rcmail.enable_command('add-resource', me.selected_event && $("#eventedit").is(':visible') ? true : false);
	}
	else {
	rcmail.enable_command('add-resource', false);
	$(rcmail.gui_objects.resourceinfo).hide();
	$(rcmail.gui_objects.resourceownerinfo).hide();
	$(rcmail.gui_objects.resourceinfocalendar).fullCalendar('removeEventSource', resources_events_source);
	}
	});

	// fetch (all) resource data from server
	me.loading_lock = rcmail.set_busy(true, 'loading', me.loading_lock);
	rcmail.http_request('resources-list', {}, me.loading_lock);

	// register button
	rcmail.register_button('add-resource', 'rcmbtncalresadd', 'uibutton');

	// initialize resource calendar display
	var resource_cal = $(rcmail.gui_objects.resourceinfocalendar);
	resource_cal.fullCalendar($.extend({}, fullcalendar_defaults, {
	header: { left: '', center: '', right: '' },
	height: resource_cal.height() + 4,
	defaultView: 'agendaWeek',
	eventSources: [],
	slotMinutes: 60,
	allDaySlot: false,
	eventRender: function(event, element, view) {
	var title = rcmail.get_label(event.status, 'calendar');
	element.addClass('status-' + event.status);
	element.find('.fc-event-head').hide();
	element.find('.fc-event-title').text(title);
	element.attr('aria-label', me.event_date_text(event, true) + ': ' + title);
	}
	}));

	$('#resource-calendar-prev').click(function(){
	resource_cal.fullCalendar('prev');
	return false;
	});
	$('#resource-calendar-next').click(function(){
	resource_cal.fullCalendar('next');
	return false;
	});
	}
	else if (search) {
	resource_search();
	}
	else {
	resource_render_list(resources_index);
	}

	if (me.selected_event && me.selected_event.start) {
	$(rcmail.gui_objects.resourceinfocalendar).fullCalendar('gotoDate', me.selected_event.start);
	}
	};

	// render the resource details UI box
	var resource_showinfo = function(resource)
	{
	// inline function to render a resource attribute
	function render_attrib(value) {
	if (typeof value == 'boolean') {
	return value ? rcmail.get_label('yes') : rcmail.get_label('no');
	}

	return value;
	}

	if (rcmail.gui_objects.resourceinfo) {
	var tr, table = $(rcmail.gui_objects.resourceinfo).show().find('tbody').html(''),
	attribs = $.extend({ name:resource.name }, resource.attributes\|\|{})
	attribs.description = resource.description;

	for (var k in attribs) {
	if (typeof attribs[k] == 'undefined')
	continue;
	table.append($('<tr>').addClass(k)
	.append('<td class="title">' + Q(ucfirst(rcmail.get_label(k, 'calendar'))) + '</td>')
	.append('<td class="value">' + text2html(render_attrib(attribs[k])) + '</td>')
	);
	}

	$(rcmail.gui_objects.resourceownerinfo).hide();
	$(rcmail.gui_objects.resourceinfocalendar).fullCalendar('removeEventSource', resources_events_source);

	if (resource.owner) {
	// display cached data
	if (resource_owners[resource.owner]) {
	resource_owner_load(resource_owners[resource.owner]);
	}
	else {
	// fetch owner data from server
	me.loading_lock = rcmail.set_busy(true, 'loading', me.loading_lock);
	rcmail.http_request('resources-owner', { _id: resource.owner }, me.loading_lock);
	}
	}

	// load resource calendar
	resources_events_source.url = "./?_task=calendar&_action=resources-calendar&_id="+urlencode(resource.ID);
	$(rcmail.gui_objects.resourceinfocalendar).fullCalendar('addEventSource', resources_events_source);
	}
	};

	// callback from server for resource listing
	var resource_data_load = function(data)
	{
	var resources_tree = {};

	// store data by ID
	$.each(data, function(i, rec) {
	resources_data[rec.ID] = rec;

	// assign parent-relations
	if (rec.members) {
	$.each(rec.members, function(j, m){
	resources_tree[m] = rec.ID;
	});
	}
	});

	// walk the parent-child tree to determine the depth of each node
	$.each(data, function(i, rec) {
	rec._depth = 0;
	if (resources_tree[rec.ID])
	rec.parent_id = resources_tree[rec.ID];

	var parent_id = resources_tree[rec.ID];
	while (parent_id) {
	rec._depth++;
	parent_id = resources_tree[parent_id];
	}
	});

	// sort by depth, collection and name
	data.sort(function(a,b) {
	var j = a._type == 'collection' ? 1 : 0,
	k = b._type == 'collection' ? 1 : 0,
	d = a._depth - b._depth;
	if (!d) d = (k - j);
	if (!d) d = b.name < a.name ? 1 : -1;
	return d;
	});

	$.each(data, function(i, rec) {
	resources_index.push(rec.ID);
	});

	// apply search filter...
	if ($('#resourcesearchbox').val() != '')
	resource_search();
	else // ...or render full list
	resource_render_list(resources_index);

	rcmail.set_busy(false, null, me.loading_lock);
	};

	// renders the given list of resource records into the treelist
	var resource_render_list = function(index) {
	var rec, link;

	resources_treelist.reset();

	$.each(index, function(i, dn) {
	if (rec = resources_data[dn]) {
	link = $('<a>').attr('href', '#')
	.attr('rel', rec.ID)
	.html(Q(rec.name));

	resources_treelist.insert({ id:rec.ID, html:link, classes:[rec._type], collapsed:true }, rec.parent_id, false);
	}
	});
	};

	// callback from server for owner information display
	var resource_owner_load = function(data)
	{
	if (data) {
	// cache this!
	resource_owners[data.ID] = data;

	var table = $(rcmail.gui_objects.resourceownerinfo).find('tbody').html('');

	for (var k in data) {
	if (k == 'event' \|\| k == 'ID')
	continue;

	table.append($('<tr>').addClass(k)
	.append('<td class="title">' + Q(ucfirst(rcmail.get_label(k, 'calendar'))) + '</td>')
	.append('<td class="value">' + text2html(data[k]) + '</td>')
	);
	}

	table.parent().show();
	}
	}

	// quick-filter the loaded resource data
	var resource_search = function()
	{
	var dn, rec, dataset = [],
	q = $('#resourcesearchbox').val().toLowerCase();

	if (q.length && resources_data) {
	// search by iterating over all resource records
	for (dn in resources_data) {
	rec = resources_data[dn];
	if ((rec.name && String(rec.name).toLowerCase().indexOf(q) >= 0)
	\|\| (rec.email && String(rec.email).toLowerCase().indexOf(q) >= 0)
	\|\| (rec.description && String(rec.description).toLowerCase().indexOf(q) >= 0)
	) {
	dataset.push(rec.ID);
	}
	}

	resource_render_list(dataset);

	// select single match
	if (dataset.length == 1) {
	resources_treelist.select(dataset[0]);
	}
	}
	else {
	$('#resourcesearchbox').val('');
	}
	};

	//
	var reset_resource_search = function()
	{
	$('#resourcesearchbox').val('').focus();
	resource_render_list(resources_index);
	};

	//
	var add_resource2event = function()
	{
	var resource = resources_data[resources_treelist.get_selection()];
	if (resource) {
	if (add_attendee($.extend({ role:'REQ-PARTICIPANT', status:'NEEDS-ACTION', cutype:'RESOURCE' }, resource)))
	rcmail.display_message(rcmail.get_label('resourceadded', 'calendar'), 'confirmation');
	}
	}

	// when the user accepts or declines an event invitation
	- var event_rsvp = function(response, delegate)
	+ var event_rsvp = function(response, delegate, replymode)
	{
	+ var btn;
	+ if (typeof response == 'object') {
	+ btn = $(response);
	+ response = btn.attr('rel')
	+ }
	+ else {
	+ btn = $('#event-rsvp input.button[rel='+response+']');
	+ }
	+
	+ // show menu to select rsvp reply mode (current or all)
	+ if (me.selected_event && me.selected_event.recurrence && !replymode) {
	+ rcube_libcalendaring.itip_rsvp_recurring(btn, function(resp, mode) {
	+ event_rsvp(resp, null, mode);
	+ });
	+ return;
	+ }
	+
	if (me.selected_event && me.selected_event.attendees && response) {
	// bring up delegation dialog
	if (response == 'delegated' && !delegate) {
	rcube_libcalendaring.itip_delegate_dialog(function(data) {
	data.rsvp = data.rsvp ? 1 : '';
	- event_rsvp('delegated', data);
	+ event_rsvp('delegated', data, replymode);
	});
	return;
	}

	// update attendee status
	for (var data, i=0; i < me.selected_event.attendees.length; i++) {
	data = me.selected_event.attendees[i];
	if (settings.identity.emails.indexOf(';'+String(data.email).toLowerCase()) >= 0) {
	data.status = response.toUpperCase();
	data.rsvp = 0; // unset RSVP flag

	if (data.status == 'DELEGATED') {
	data['delegated-to'] = delegate.to;
	}
	else {
	if (data['delegated-to']) {
	delete data['delegated-to'];
	if (data.role == 'NON-PARTICIPANT' && data.status != 'DECLINED')
	data.role = 'REQ-PARTICIPANT';
	}
	}
	}

	// set free_busy status to transparent if declined (#4425)
	if (data.status == 'DECLINED' \|\| data.role == 'NON-PARTICIPANT') {
	me.selected_event.free_busy = 'free';
	}
	else {
	me.selected_event.free_busy = 'busy';
	}
	}

	// submit status change to server
	- var submit_data = $.extend({}, me.selected_event, { source:null, comment:$('#reply-comment-event-rsvp').val(), _savemode: $('input.rsvp-replymode:checked').val() }, (delegate \|\| {})),
	+ var submit_data = $.extend({}, me.selected_event, { source:null, comment:$('#reply-comment-event-rsvp').val(), _savemode: replymode \|\| 'all' }, (delegate \|\| {})),
	noreply = $('#noreply-event-rsvp:checked').length ? 1 : 0;

	// import event from mail (temporary iTip event)
	if (submit_data._mbox && submit_data._uid) {
	me.saving_lock = rcmail.set_busy(true, 'calendar.savingdata');
	rcmail.http_post('mailimportitip', {
	_mbox: submit_data._mbox,
	_uid: submit_data._uid,
	_part: submit_data._part,
	_status: response,
	_to: (delegate ? delegate.to : null),
	_rsvp: (delegate && delegate.rsvp) ? 1 : 0,
	_noreply: noreply,
	_comment: submit_data.comment,
	_instance: submit_data._instance,
	_savemode: submit_data._savemode
	});
	}
	else if (settings.invitation_calendars) {
	update_event('rsvp', submit_data, { status:response, noreply:noreply });
	}
	else {
	me.saving_lock = rcmail.set_busy(true, 'calendar.savingdata');
	rcmail.http_post('event', { action:'rsvp', e:submit_data, status:response, noreply:noreply });
	}

	event_show_dialog(me.selected_event);
	}
	};

	// add the given date to the RDATE list
	var add_rdate = function(date)
	{
	var li = $('<li>')
	.attr('data-value', date2servertime(date))
	.html('<span>' + Q($.fullCalendar.formatDate(date, settings['date_format'])) + '</span>')
	.appendTo('#edit-recurrence-rdates');

	$('<a>').attr('href', '#del')
	.addClass('iconbutton delete')
	.html(rcmail.get_label('delete', 'calendar'))
	.attr('title', rcmail.get_label('delete', 'calendar'))
	.appendTo(li);
	};

	// re-sort the list items by their 'data-value' attribute
	var sort_rdates = function()
	{
	var mylist = $('#edit-recurrence-rdates'),
	listitems = mylist.children('li').get();
	listitems.sort(function(a, b) {
	var compA = $(a).attr('data-value');
	var compB = $(b).attr('data-value');
	return (compA < compB) ? -1 : (compA > compB) ? 1 : 0;
	})
	$.each(listitems, function(idx, item) { mylist.append(item); });
	}

	// remove the link reference matching the given uri
	function remove_link(elem)
	{
	var $elem = $(elem), uri = $elem.attr('data-uri');

	me.selected_event.links = $.grep(me.selected_event.links, function(link) { return link.uri != uri; });

	// remove UI list item
	$elem.hide().closest('li').addClass('deleted');
	}

	// post the given event data to server
	var update_event = function(action, data, add)
	{
	me.saving_lock = rcmail.set_busy(true, 'calendar.savingdata');
	rcmail.http_post('calendar/event', $.extend({ action:action, e:data }, (add \|\| {})));

	// render event temporarily into the calendar
	if ((data.start && data.end) \|\| data.id) {
	var event = data.id ? $.extend(fc.fullCalendar('clientEvents', function(e){ return e.id == data.id; })[0], data) : data;
	if (data.start)
	event.start = data.start;
	if (data.end)
	event.end = data.end;
	if (data.allday !== undefined)
	event.allDay = data.allday;
	event.editable = false;
	event.temp = true;
	event.className = 'fc-event-cal-'+data.calendar+' fc-event-temp';
	fc.fullCalendar(data.id ? 'updateEvent' : 'renderEvent', event);

	// mark all recurring instances as temp
	if (event.recurrence \|\| event.recurrence_id) {
	var base_id = event.recurrence_id ? event.recurrence_id.replace(/-\d+(T\d{6})?$/, '') : event.id;
	$.each(fc.fullCalendar('clientEvents', function(e){ return e.id == base_id \|\| e.recurrence_id == base_id; }), function(i,ev) {
	ev.temp = true;
	ev.editable = false;
	event.className += ' fc-event-temp';
	fc.fullCalendar('updateEvent', ev);
	});
	}
	}
	};

	// mouse-click handler to check if the show dialog is still open and prevent default action
	var dialog_check = function(e)
	{
	var showd = $("#eventshow");
	if (showd.is(':visible') && !$(e.target).closest('.ui-dialog').length && !$(e.target).closest('.popupmenu').length) {
	showd.dialog('close');
	e.stopImmediatePropagation();
	ignore_click = true;
	return false;
	}
	else if (ignore_click) {
	window.setTimeout(function(){ ignore_click = false; }, 20);
	return false;
	}
	return true;
	};

	// display confirm dialog when modifying/deleting an event
	var update_event_confirm = function(action, event, data)
	{
	if (!data) data = event;
	var decline = false, notify = false, html = '', cal = me.calendars[event.calendar],
	_has_attendees = has_attendees(event), _is_organizer = is_organizer(event);

	// event has attendees, ask whether to notify them
	if (_has_attendees) {
	var checked = (settings.itip_notify & 1 ? ' checked="checked"' : '');
	if (_is_organizer) {
	notify = true;
	if (settings.itip_notify & 2) {
	html += '<div class="message">' +
	'<label><input class="confirm-attendees-donotify" type="checkbox"' + checked + ' value="1" name="notify" /> ' +
	rcmail.gettext((action == 'remove' ? 'sendcancellation' : 'sendnotifications'), 'calendar') +
	'</label></div>';
	}
	else {
	data._notify = settings.itip_notify;
	}
	}
	else if (action == 'remove' && is_attendee(event)) {
	decline = true;
	html += '<div class="message">' +
	'<label><input class="confirm-attendees-decline" type="checkbox"' + checked + ' value="1" name="decline" /> ' +
	rcmail.gettext('itipdeclineevent', 'calendar') +
	'</label></div>';
	}
	else {
	html += '<div class="message">' + rcmail.gettext('localchangeswarning', 'calendar') + '</div>';
	}
	}

	// recurring event: user needs to select the savemode
	if (event.recurrence) {
	var disabled_state = '', message_label = (action == 'remove' ? 'removerecurringeventwarning' : 'changerecurringeventwarning');
	/*
	if (_has_attendees) {
	if (action == 'remove') {
	if (!_is_organizer) {
	message_label = 'removerecurringallonly';
	disabled_state = ' disabled';
	}
	}
	else if (is_organizer(event)) {
	disabled_state = ' disabled';
	}
	}
	*/
	html += '<div class="message"><span class="ui-icon ui-icon-alert"></span>' +
	rcmail.gettext(message_label, 'calendar') + '</div>' +
	'<div class="savemode">' +
	'<a href="#current" class="button' + disabled_state + '">' + rcmail.gettext('currentevent', 'calendar') + '</a>' +
	'<a href="#future" class="button' + disabled_state + '">' + rcmail.gettext('futurevents', 'calendar') + '</a>' +
	'<a href="#all" class="button">' + rcmail.gettext('allevents', 'calendar') + '</a>' +
	(action != 'remove' ? '<a href="#new" class="button">' + rcmail.gettext('saveasnew', 'calendar') + '</a>' : '') +
	'</div>';
	}

	// show dialog
	if (html) {
	var $dialog = $('<div>').html(html);

	$dialog.find('a.button').button().filter(':not(.disabled)').click(function(e) {
	data._savemode = String(this.href).replace(/.+#/, '');
	data._notify = settings.itip_notify;

	// open event edit dialog when saving as new
	if (data._savemode == 'new') {
	event._savemode = 'new';
	event_edit_dialog('edit', event);
	fc.fullCalendar('refetchEvents');
	}
	else {
	if ($dialog.find('input.confirm-attendees-donotify').length)
	data._notify = $dialog.find('input.confirm-attendees-donotify').get(0).checked ? 1 : 0;
	if (decline) {
	data._decline = $dialog.find('input.confirm-attendees-decline:checked').length;
	data._notify = 0;
	}
	update_event(action, data);
	}

	$dialog.dialog("close");
	return false;
	});

	var buttons = [];

	if (!event.recurrence) {
	buttons.push({
	text: rcmail.gettext((action == 'remove' ? 'delete' : 'save'), 'calendar'),
	click: function() {
	data._notify = notify && $dialog.find('input.confirm-attendees-donotify:checked').length ? 1 : 0;
	data._decline = decline && $dialog.find('input.confirm-attendees-decline:checked').length ? 1 : 0;
	update_event(action, data);
	$(this).dialog("close");
	}
	});
	}

	buttons.push({
	text: rcmail.gettext('cancel', 'calendar'),
	click: function() {
	$(this).dialog("close");
	}
	});

	$dialog.dialog({
	modal: true,
	width: 460,
	dialogClass: 'warning',
	title: rcmail.gettext((action == 'remove' ? 'removeeventconfirm' : 'changeeventconfirm'), 'calendar'),
	buttons: buttons,
	open: function() {
	setTimeout(function(){
	$dialog.parent().find('.ui-button:not(.ui-dialog-titlebar-close)').first().focus();
	}, 5);
	},
	close: function(){
	$dialog.dialog("destroy").remove();
	if (!rcmail.busy)
	fc.fullCalendar('refetchEvents');
	}
	}).addClass('event-update-confirm').show();

	return false;
	}
	// show regular confirm box when deleting
	else if (action == 'remove' && !cal.undelete) {
	if (!confirm(rcmail.gettext('deleteventconfirm', 'calendar')))
	return false;
	}

	// do update
	update_event(action, data);

	return true;
	};

	var update_agenda_toolbar = function()
	{
	$('#agenda-listrange').val(fc.fullCalendar('option', 'listRange'));
	$('#agenda-listsections').val(fc.fullCalendar('option', 'listSections'));
	}


	/* public methods */

	/**
	* Remove saving lock and free the UI for new input
	*/
	this.unlock_saving = function()
	{
	if (me.saving_lock)
	rcmail.set_busy(false, null, me.saving_lock);
	};

	// opens calendar day-view in a popup
	this.fisheye_view = function(date)
	{
	$('#fish-eye-view:ui-dialog').dialog('close');

	// create list of active event sources
	var src, cals = {}, sources = [];
	for (var id in this.calendars) {
	src = $.extend({}, this.calendars[id]);
	src.editable = false;
	src.url = null;
	src.events = [];

	if (src.active) {
	cals[id] = src;
	sources.push(src);
	}
	}

	// copy events already loaded
	var events = fc.fullCalendar('clientEvents');
	for (var event, i=0; i< events.length; i++) {
	event = events[i];
	if (event.source && (src = cals[event.source.id])) {
	src.events.push(event);
	}
	}

	var h = $(window).height() - 50;
	var dialog = $('<div>')
	.attr('id', 'fish-eye-view')
	.dialog({
	modal: true,
	width: 680,
	height: h,
	title: $.fullCalendar.formatDate(date, 'dddd ' + settings['date_long']),
	close: function(){
	dialog.dialog("destroy");
	me.fisheye_date = null;
	}
	})
	.fullCalendar($.extend({}, fullcalendar_defaults, {
	defaultView: 'agendaDay',
	header: { left: '', center: '', right: '' },
	height: h - 50,
	date: date.getDate(),
	month: date.getMonth(),
	year: date.getFullYear(),
	eventSources: sources
	}));

	this.fisheye_date = date;
	};

	// opens the given calendar in a popup dialog
	this.quickview = function(id, shift)
	{
	var src, in_quickview = false;
	$.each(this.quickview_sources, function(i,cal) {
	if (cal.id == id) {
	in_quickview = true;
	src = cal;
	}
	});

	// remove source from quickview
	if (in_quickview && shift) {
	this.quickview_sources = $.grep(this.quickview_sources, function(src) { return src.id != id; });
	}
	else {
	if (!shift) {
	// remove all current quickview event sources
	if (this.quickview_active) {
	fc.fullCalendar('removeEventSources');
	}

	this.quickview_sources = [];

	// uncheck all active quickview icons
	calendars_list.container.find('div.focusview')
	.add('#calendars .searchresults div.focusview')
	.removeClass('focusview')
	.find('a.quickview').attr('aria-checked', 'false');
	}

	if (!in_quickview) {
	// clone and modify calendar properties
	src = $.extend({}, this.calendars[id]);
	src.url += '&_quickview=1';
	this.quickview_sources.push(src);
	}
	}

	// disable quickview
	if (this.quickview_active && !this.quickview_sources.length) {
	// register regular calendar event sources
	$.each(this.calendars, function(k, cal) {
	if (cal.active)
	fc.fullCalendar('addEventSource', cal);
	});

	this.quickview_active = false;
	$('body').removeClass('quickview-active');

	// uncheck all active quickview icons
	calendars_list.container.find('div.focusview')
	.add('#calendars .searchresults div.focusview')
	.removeClass('focusview')
	.find('a.quickview').attr('aria-checked', 'false');
	}
	// activate quickview
	else if (!this.quickview_active) {
	// remove regular calendar event sources
	fc.fullCalendar('removeEventSources');

	// register quickview event sources
	$.each(this.quickview_sources, function(i, src) {
	fc.fullCalendar('addEventSource', src);
	});

	this.quickview_active = true;
	$('body').addClass('quickview-active');
	}
	// update quickview sources
	else if (in_quickview) {
	fc.fullCalendar('removeEventSource', src);
	}
	else if (src) {
	fc.fullCalendar('addEventSource', src);
	}

	// activate quickview icon
	if (this.quickview_active) {
	$(calendars_list.get_item(id)).find('.calendar').first()
	.add('#calendars .searchresults .cal-' + id)
	[in_quickview ? 'removeClass' : 'addClass']('focusview')
	.find('a.quickview').attr('aria-checked', in_quickview ? 'false' : 'true');
	}
	};

	// disable quickview mode
	function reset_quickview()
	{
	// remove all current quickview event sources
	if (me.quickview_active) {
	fc.fullCalendar('removeEventSources');
	me.quickview_sources = [];
	}

	// register regular calendar event sources
	$.each(me.calendars, function(k, cal) {
	if (cal.active)
	fc.fullCalendar('addEventSource', cal);
	});

	// uncheck all active quickview icons
	calendars_list.container.find('div.focusview')
	.add('#calendars .searchresults div.focusview')
	.removeClass('focusview')
	.find('a.quickview').attr('aria-checked', 'false');

	me.quickview_active = false;
	$('body').removeClass('quickview-active');
	};

	//public method to show the print dialog.
	this.print_calendars = function(view)
	{
	if (!view) view = fc.fullCalendar('getView').name;
	var date = fc.fullCalendar('getDate') \|\| new Date();
	var range = fc.fullCalendar('option', 'listRange');
	var sections = fc.fullCalendar('option', 'listSections');
	rcmail.open_window(rcmail.url('print', { view: view, date: date2unixtime(date), range: range, sections: sections, search: this.search_query }), true, true);
	};

	// public method to bring up the new event dialog
	this.add_event = function(templ) {
	if (this.selected_calendar) {
	var now = new Date();
	var date = fc.fullCalendar('getDate');
	if (typeof date != 'Date')
	date = now;
	date.setHours(now.getHours()+1);
	date.setMinutes(0);
	var end = new Date(date.getTime());
	end.setHours(date.getHours()+1);
	event_edit_dialog('new', $.extend({ start:date, end:end, allDay:false, calendar:this.selected_calendar }, templ \|\| {}));
	}
	};

	// delete the given event after showing a confirmation dialog
	this.delete_event = function(event) {
	// show confirm dialog for recurring events, use jquery UI dialog
	return update_event_confirm('remove', event, { id:event.id, calendar:event.calendar, attendees:event.attendees });
	};

	// opens a jquery UI dialog with event properties (or empty for creating a new calendar)
	this.calendar_edit_dialog = function(calendar)
	{
	// close show dialog first
	var $dialog = $("#calendarform");
	if ($dialog.is(':ui-dialog'))
	$dialog.dialog('close');

	if (!calendar)
	calendar = { name:'', color:'cc0000', editable:true, showalarms:true };

	var form, name, color, alarms;

	$dialog.html(rcmail.get_label('loading'));
	$.ajax({
	type: 'GET',
	dataType: 'html',
	url: rcmail.url('calendar'),
	data: { action:(calendar.id ? 'form-edit' : 'form-new'), c:{ id:calendar.id } },
	success: function(data) {
	$dialog.html(data);
	// resize and reposition dialog window
	form = $('#calendarpropform');
	me.dialog_resize('#calendarform', form.height(), form.width());
	name = $('#calendar-name').prop('disabled', !calendar.editable).val(calendar.editname \|\| calendar.name);
	color = $('#calendar-color').val(calendar.color).miniColors({ value: calendar.color, colorValues:rcmail.env.mscolors });
	alarms = $('#calendar-showalarms').prop('checked', calendar.showalarms).get(0);
	name.select();
	}
	});

	// dialog buttons
	var buttons = {};

	buttons[rcmail.gettext('save', 'calendar')] = function() {
	// form is not loaded
	if (!form \|\| !form.length)
	return;

	// TODO: do some input validation
	if (!name.val() \|\| name.val().length < 2) {
	alert(rcmail.gettext('invalidcalendarproperties', 'calendar'));
	name.select();
	return;
	}

	// post data to server
	var data = form.serializeJSON();
	if (data.color)
	data.color = data.color.replace(/^#/, '');
	if (calendar.id)
	data.id = calendar.id;
	if (alarms)
	data.showalarms = alarms.checked ? 1 : 0;

	me.saving_lock = rcmail.set_busy(true, 'calendar.savingdata');
	rcmail.http_post('calendar', { action:(calendar.id ? 'edit' : 'new'), c:data });
	$dialog.dialog("close");
	};

	buttons[rcmail.gettext('cancel', 'calendar')] = function() {
	$dialog.dialog("close");
	};

	// open jquery UI dialog
	$dialog.dialog({
	modal: true,
	resizable: true,
	closeOnEscape: false,
	title: rcmail.gettext((calendar.id ? 'editcalendar' : 'createcalendar'), 'calendar'),
	open: function() {
	$dialog.parent().find('.ui-dialog-buttonset .ui-button').first().addClass('mainaction');
	},
	close: function() {
	$dialog.html('').dialog("destroy").hide();
	},
	buttons: buttons,
	minWidth: 400,
	width: 420
	}).show();

	};

	this.calendar_remove = function(calendar)
	{
	this.calendar_destroy_source(calendar.id);
	rcmail.http_post('calendar', { action:'subscribe', c:{ id:calendar.id, active:0, permanent:0, recursive:1 } });
	return true;
	};

	this.calendar_delete = function(calendar)
	{
	if (confirm(rcmail.gettext(calendar.children ? 'deletecalendarconfirmrecursive' : 'deletecalendarconfirm', 'calendar'))) {
	rcmail.http_post('calendar', { action:'delete', c:{ id:calendar.id } });
	return true;
	}
	return false;
	};

	this.calendar_destroy_source = function(id)
	{
	var delete_ids = [];

	if (this.calendars[id]) {
	// find sub-calendars
	if (this.calendars[id].children) {
	for (var child_id in this.calendars) {
	if (String(child_id).indexOf(id) == 0)
	delete_ids.push(child_id);
	}
	}
	else {
	delete_ids.push(id);
	}
	}

	// delete all calendars in the list
	for (var i=0; i < delete_ids.length; i++) {
	id = delete_ids[i];
	calendars_list.remove(id);
	fc.fullCalendar('removeEventSource', this.calendars[id]);
	$('#edit-calendar option[value="'+id+'"]').remove();
	delete this.calendars[id];
	}
	};

	// open a dialog to upload an .ics file with events to be imported
	this.import_events = function(calendar)
	{
	// close show dialog first
	var $dialog = $("#eventsimport"),
	form = rcmail.gui_objects.importform;

	if ($dialog.is(':ui-dialog'))
	$dialog.dialog('close');

	if (calendar)
	$('#event-import-calendar').val(calendar.id);

	var buttons = {};
	buttons[rcmail.gettext('import', 'calendar')] = function() {
	if (form && form.elements._data.value) {
	rcmail.async_upload_form(form, 'import_events', function(e) {
	rcmail.set_busy(false, null, me.saving_lock);
	$('.ui-dialog-buttonpane button', $dialog.parent()).button('enable');

	// display error message if no sophisticated response from server arrived (e.g. iframe load error)
	if (me.import_succeeded === null)
	rcmail.display_message(rcmail.get_label('importerror', 'calendar'), 'error');
	});

	// display upload indicator (with extended timeout)
	var timeout = rcmail.env.request_timeout;
	rcmail.env.request_timeout = 600;
	me.import_succeeded = null;
	me.saving_lock = rcmail.set_busy(true, 'uploading');
	$('.ui-dialog-buttonpane button', $dialog.parent()).button('disable');

	// restore settings
	rcmail.env.request_timeout = timeout;
	}
	};

	buttons[rcmail.gettext('cancel', 'calendar')] = function() {
	$dialog.dialog("close");
	};

	// open jquery UI dialog
	$dialog.dialog({
	modal: true,
	resizable: false,
	closeOnEscape: false,
	title: rcmail.gettext('importevents', 'calendar'),
	open: function() {
	$dialog.parent().find('.ui-dialog-buttonset .ui-button').first().addClass('mainaction');
	},
	close: function() {
	$('.ui-dialog-buttonpane button', $dialog.parent()).button('enable');
	$dialog.dialog("destroy").hide();
	},
	buttons: buttons,
	width: 520
	}).show();

	};

	// callback from server if import succeeded
	this.import_success = function(p)
	{
	this.import_succeeded = true;
	$("#eventsimport:ui-dialog").dialog('close');
	rcmail.set_busy(false, null, me.saving_lock);
	rcmail.gui_objects.importform.reset();

	if (p.refetch)
	this.refresh(p);
	};

	// callback from server to report errors on import
	this.import_error = function(p)
	{
	this.import_succeeded = false;
	rcmail.set_busy(false, null, me.saving_lock);
	rcmail.display_message(p.message \|\| rcmail.get_label('importerror', 'calendar'), 'error');
	}

	// open a dialog to select calendars for export
	this.export_events = function(calendar)
	{
	// close show dialog first
	var $dialog = $("#eventsexport"),
	form = rcmail.gui_objects.exportform;

	if ($dialog.is(':ui-dialog'))
	$dialog.dialog('close');

	if (calendar)
	$('#event-export-calendar').val(calendar.id);

	$('#event-export-range').change(function(e){
	var custom = $('option:selected', this).val() == 'custom',
	input = $('#event-export-startdate')
	input.parent()[(custom?'show':'hide')]();
	if (custom)
	input.select();
	})

	var buttons = {};
	buttons[rcmail.gettext('export', 'calendar')] = function() {
	if (form) {
	var start = 0, range = $('#event-export-range option:selected', this).val(),
	source = $('#event-export-calendar option:selected').val(),
	attachmt = $('#event-export-attachments').get(0).checked;

	if (range == 'custom')
	start = date2unixtime(parse_datetime('00:00', $('#event-export-startdate').val()));
	else if (range > 0)
	start = 'today -' + range + ' months';

	rcmail.goto_url('export_events', { source:source, start:start, attachments:attachmt?1:0 });
	}
	};

	buttons[rcmail.gettext('cancel', 'calendar')] = function() {
	$dialog.dialog("close");
	};

	// open jquery UI dialog
	$dialog.dialog({
	modal: true,
	resizable: false,
	closeOnEscape: false,
	title: rcmail.gettext('exporttitle', 'calendar'),
	open: function() {
	$dialog.parent().find('.ui-dialog-buttonset .ui-button').first().addClass('mainaction');
	},
	close: function() {
	$('.ui-dialog-buttonpane button', $dialog.parent()).button('enable');
	$dialog.dialog("destroy").hide();
	},
	buttons: buttons,
	width: 520
	}).show();

	};

	// download the selected event as iCal
	this.event_download = function(event)
	{
	if (event && event.id) {
	rcmail.goto_url('export_events', { source:event.calendar, id:event.id, attachments:1 });
	}
	};

	// open the message compose step with a calendar_event parameter referencing the selected event.
	// the server-side plugin hook will pick that up and attach the event to the message.
	this.event_sendbymail = function(event, e)
	{
	if (event && event.id) {
	rcmail.command('compose', { _calendar_event:event._id }, e ? e.target : null, e);
	}
	};

	// show URL of the given calendar in a dialog box
	this.showurl = function(calendar)
	{
	var $dialog = $('#calendarurlbox');

	if ($dialog.is(':ui-dialog'))
	$dialog.dialog('close');

	if (calendar.feedurl) {
	if (calendar.caldavurl) {
	$('#caldavurl').val(calendar.caldavurl);
	$('#calendarcaldavurl').show();
	}
	else {
	$('#calendarcaldavurl').hide();
	}

	$dialog.dialog({
	resizable: true,
	closeOnEscape: true,
	title: rcmail.gettext('showurl', 'calendar'),
	close: function() {
	$dialog.dialog("destroy").hide();
	},
	width: 520
	}).show();

	$('#calfeedurl').val(calendar.feedurl).select();
	}
	};

	// refresh the calendar view after saving event data
	this.refresh = function(p)
	{
	var source = me.calendars[p.source];

	// helper function to update the given fullcalendar view
	function update_view(view, event, source) {
	var existing = view.fullCalendar('clientEvents', event._id);
	if (existing.length) {
	$.extend(existing[0], event);
	view.fullCalendar('updateEvent', existing[0]);
	// remove old recurrence instances
	if (event.recurrence && !event.recurrence_id)
	view.fullCalendar('removeEvents', function(e){ return e._id.indexOf(event._id+'-') == 0; });
	}
	else {
	event.source = source; // link with source
	view.fullCalendar('renderEvent', event);
	}
	}

	// remove temp events
	fc.fullCalendar('removeEvents', function(e){ return e.temp; });

	if (source && (p.refetch \|\| (p.update && !source.active))) {
	// activate event source if new event was added to an invisible calendar
	if (this.quickview_active) {
	// map source to the quickview_sources equivalent
	$.each(this.quickview_sources, function(src) {
	if (src.id == source.id) {
	source = src;
	return false;
	}
	});
	fc.fullCalendar('refetchEvents', source, true);
	}
	else if (!source.active) {
	source.active = true;
	fc.fullCalendar('addEventSource', source);
	$('#rcmlical' + source.id + ' input').prop('checked', true);
	}
	else
	fc.fullCalendar('refetchEvents', source, true);

	fetch_counts();
	}
	// add/update single event object
	else if (source && p.update) {
	var event = p.update;
	event.temp = false;
	event.editable = 0;

	// update fish-eye view
	if (this.fisheye_date)
	update_view($('#fish-eye-view'), event, source);

	// update main view
	event.editable = source.editable;
	update_view(fc, event, source);

	// update the currently displayed event dialog
	if ($('#eventshow').is(':visible') && me.selected_event && me.selected_event.id == event.id)
	event_show_dialog(event)
	}
	// refetch all calendars
	else if (p.refetch) {
	fc.fullCalendar('refetchEvents', undefined, true);
	fetch_counts();
	}
	};

	// modify query parameters for refresh requests
	this.before_refresh = function(query)
	{
	var view = fc.fullCalendar('getView');

	query.start = date2unixtime(view.visStart);
	query.end = date2unixtime(view.visEnd);

	if (this.search_query)
	query.q = this.search_query;

	return query;
	};

	// callback from server providing event counts
	this.update_counts = function(p)
	{
	$.each(p.counts, function(cal, count) {
	var li = calendars_list.get_item(cal),
	bubble = $(li).children('.calendar').find('span.count');

	if (!bubble.length && count > 0) {
	bubble = $('<span>')
	.addClass('count')
	.appendTo($(li).children('.calendar').first())
	}

	if (count > 0) {
	bubble.text(count).show();
	}
	else {
	bubble.text('').hide();
	}
	});
	};

	// callback after an iTip message event was imported
	this.itip_message_processed = function(data)
	{
	// remove temporary iTip source
	fc.fullCalendar('removeEventSource', this.calendars['--invitation--itip']);

	$('#eventshow:ui-dialog').dialog('close');
	this.selected_event = null;

	// refresh destination calendar source
	this.refresh({ source:data.calendar, refetch:true });

	this.unlock_saving();

	// process 'after_action' in mail task
	if (window.opener && window.opener.rcube_libcalendaring)
	window.opener.rcube_libcalendaring.itip_message_processed(data);
	};

	// reload the calendar view by keeping the current date/view selection
	this.reload_view = function()
	{
	var query = { view: fc.fullCalendar('getView').name },
	date = fc.fullCalendar('getDate');
	if (date)
	query.date = date2unixtime(date);
	rcmail.redirect(rcmail.url('', query));
	}

	// update browser location to remember current view
	this.update_state = function()
	{
	var query = { view: current_view },
	date = fc.fullCalendar('getDate');
	if (date)
	query.date = date2unixtime(date);

	if (window.history.replaceState)
	window.history.replaceState({}, document.title, rcmail.url('', query).replace('&_action=', ''));
	};

	this.resource_search = resource_search;
	this.reset_resource_search = reset_resource_search;
	this.add_resource2event = add_resource2event;
	this.resource_data_load = resource_data_load;
	this.resource_owner_load = resource_owner_load;


	/* event searching */

	// execute search
	this.quicksearch = function()
	{
	if (rcmail.gui_objects.qsearchbox) {
	var q = rcmail.gui_objects.qsearchbox.value;
	if (q != '') {
	var id = 'search-'+q;
	var sources = [];

	if (me.quickview_active)
	reset_quickview();

	if (this._search_message)
	rcmail.hide_message(this._search_message);

	for (var sid in this.calendars) {
	if (this.calendars[sid]) {
	this.calendars[sid].url = this.calendars[sid].url.replace(/&q=.+/, '') + '&q=' + urlencode(q);
	sources.push(sid);
	}
	}
	id += '@'+sources.join(',');

	// ignore if query didn't change
	if (this.search_request == id) {
	return;
	}
	// remember current view
	else if (!this.search_request) {
	this.default_view = fc.fullCalendar('getView').name;
	}

	this.search_request = id;
	this.search_query = q;

	// change to list view
	fc.fullCalendar('option', 'listSections', 'month')
	.fullCalendar('option', 'listRange', Math.max(60, settings['agenda_range']))
	.fullCalendar('changeView', 'table');

	update_agenda_toolbar();

	// refetch events with new url (if not already triggered by changeView)
	if (!this.is_loading)
	fc.fullCalendar('refetchEvents');
	}
	else // empty search input equals reset
	this.reset_quicksearch();
	}
	};

	// reset search and get back to normal event listing
	this.reset_quicksearch = function()
	{
	$(rcmail.gui_objects.qsearchbox).val('');

	if (this._search_message)
	rcmail.hide_message(this._search_message);

	if (this.search_request) {
	// hide bottom links of agenda view
	fc.find('.fc-list-content > .fc-listappend').hide();

	// restore original event sources and view mode from fullcalendar
	fc.fullCalendar('option', 'listSections', settings['agenda_sections'])
	.fullCalendar('option', 'listRange', settings['agenda_range']);

	update_agenda_toolbar();

	for (var sid in this.calendars) {
	if (this.calendars[sid])
	this.calendars[sid].url = this.calendars[sid].url.replace(/&q=.+/, '');
	}
	if (this.default_view)
	fc.fullCalendar('changeView', this.default_view);

	if (!this.is_loading)
	fc.fullCalendar('refetchEvents');

	this.search_request = this.search_query = null;
	}
	};

	// callback if all sources have been fetched from server
	this.events_loaded = function(count)
	{
	var addlinks, append = '';

	// enhance list view when searching
	if (this.search_request) {
	if (!count) {
	this._search_message = rcmail.display_message(rcmail.gettext('searchnoresults', 'calendar'), 'notice');
	append = '<div class="message">' + rcmail.gettext('searchnoresults', 'calendar') + '</div>';
	}
	append += '<div class="fc-bottomlinks formlinks"></div>';
	addlinks = true;
	}

	if (fc.fullCalendar('getView').name == 'table') {
	var container = fc.find('.fc-list-content > .fc-listappend');
	if (append) {
	if (!container.length)
	container = $('<div class="fc-listappend"></div>').appendTo(fc.find('.fc-list-content'));
	container.html(append).show();
	}
	else if (container.length)
	container.hide();

	// add links to adjust search date range
	if (addlinks) {
	var lc = container.find('.fc-bottomlinks');
	$('<a>').attr('href', '#').html(rcmail.gettext('searchearlierdates', 'calendar')).appendTo(lc).click(function(){
	fc.fullCalendar('incrementDate', 0, -1, 0);
	});
	lc.append(" ");
	$('<a>').attr('href', '#').html(rcmail.gettext('searchlaterdates', 'calendar')).appendTo(lc).click(function(){
	var range = fc.fullCalendar('option', 'listRange');
	if (range < 90) {
	fc.fullCalendar('option', 'listRange', fc.fullCalendar('option', 'listRange') + 30).fullCalendar('render');
	update_agenda_toolbar();
	}
	else
	fc.fullCalendar('incrementDate', 0, 1, 0);
	});
	}
	}

	if (this.fisheye_date)
	this.fisheye_view(this.fisheye_date);
	};

	// resize and reposition (center) the dialog window
	this.dialog_resize = function(id, height, width)
	{
	var win = $(window), w = win.width(), h = win.height();
	$(id).dialog('option', { height: Math.min(h-20, height+130), width: Math.min(w-20, width+50) })
	.dialog('option', 'position', ['center', 'center']); // only works in a separate call (!?)
	};

	// adjust calendar view size
	this.view_resize = function()
	{
	var footer = fc.fullCalendar('getView').name == 'table' ? $('#agendaoptions').outerHeight() : 0;
	fc.fullCalendar('option', 'height', $('#calendar').height() - footer);
	};

	// mark the given calendar folder as selected
	this.select_calendar = function(id, nolistupdate)
	{
	if (!nolistupdate)
	calendars_list.select(id);

	// trigger event hook
	rcmail.triggerEvent('selectfolder', { folder:id, prefix:'rcmlical' });

	this.selected_calendar = id;
	};

	// register the given calendar to the current view
	var add_calendar_source = function(cal)
	{
	var color, brightness, select, id = cal.id;

	me.calendars[id] = $.extend({
	url: rcmail.url('calendar/load_events', { source: id }),
	editable: !cal.readonly,
	className: 'fc-event-cal-'+id,
	id: id
	}, cal);

	// choose black text color when background is bright, white otherwise
	if (color = settings.event_coloring % 2 ? '' : '#' + cal.color) {
	if (/^#([a-f0-9]{2})([a-f0-9]{2})([a-f0-9]{2})$/i.test(color)) {
	// use information about brightness calculation found at
	// http://javascriptrules.com/2009/08/05/css-color-brightness-contrast-using-javascript/
	brightness = (parseInt(RegExp.$1, 16) * 299 + parseInt(RegExp.$2, 16) * 587 + parseInt(RegExp.$3, 16) * 114) / 1000;
	if (brightness > 125)
	me.calendars[id].textColor = 'black';
	}

	me.calendars[id].color = color;
	}

	if (fc && (cal.active \|\| cal.subscribed)) {
	if (cal.active)
	fc.fullCalendar('addEventSource', me.calendars[id]);

	var submit = { id: id, active: cal.active ? 1 : 0 };
	if (cal.subscribed !== undefined)
	submit.permanent = cal.subscribed ? 1 : 0;
	rcmail.http_post('calendar', { action:'subscribe', c:submit });
	}

	// insert to #calendar-select options if writeable
	select = $('#edit-calendar');
	if (fc && !cal.readonly && select.length && !select.find('option[value="'+id+'"]').length) {
	$('<option>').attr('value', id).html(cal.name).appendTo(select);
	}
	}

	// fetch counts for some calendars from the server
	var fetch_counts = function()
	{
	if (count_sources.length) {
	setTimeout(function() {
	rcmail.http_request('calendar/count', { source:count_sources });
	}, 500);
	}
	};


	/* startup code */

	// create list of event sources AKA calendars
	var id, cal, active, event_sources = [];
	for (id in rcmail.env.calendars) {
	cal = rcmail.env.calendars[id];
	active = cal.active \|\| false;
	add_calendar_source(cal);

	// check active calendars
	$('#rcmlical'+id+' > .calendar input').prop('checked', active);

	if (active) {
	event_sources.push(this.calendars[id]);
	}
	if (cal.counts) {
	count_sources.push(id);
	}

	if (!cal.readonly && !this.selected_calendar) {
	this.selected_calendar = id;
	rcmail.enable_command('addevent', true);
	}
	}

	// initialize treelist widget that controls the calendars list
	var widget_class = window.kolab_folderlist \|\| rcube_treelist_widget;
	calendars_list = new widget_class(rcmail.gui_objects.calendarslist, {
	id_prefix: 'rcmlical',
	selectable: true,
	save_state: true,
	keyboard: false,
	searchbox: '#calendarlistsearch',
	search_action: 'calendar/calendar',
	search_sources: [ 'folders', 'users' ],
	search_title: rcmail.gettext('calsearchresults','calendar')
	});
	calendars_list.addEventListener('select', function(node) {
	if (node && node.id && me.calendars[node.id]) {
	me.select_calendar(node.id, true);
	rcmail.enable_command('calendar-edit', 'calendar-showurl', true);
	rcmail.enable_command('calendar-delete', !me.calendars[node.id].readonly);
	rcmail.enable_command('calendar-remove', me.calendars[node.id] && me.calendars[node.id].removable);
	}
	});
	calendars_list.addEventListener('insert-item', function(p) {
	var cal = p.data;
	if (cal && cal.id) {
	add_calendar_source(cal);

	// add css classes related to this calendar to document
	if (cal.css) {
	$('<style type="text/css"></style>')
	.html(cal.css)
	.appendTo('head');
	}
	}
	});
	calendars_list.addEventListener('subscribe', function(p) {
	var cal;
	if ((cal = me.calendars[p.id])) {
	cal.subscribed = p.subscribed \|\| false;
	rcmail.http_post('calendar', { action:'subscribe', c:{ id:p.id, active:cal.active?1:0, permanent:cal.subscribed?1:0 } });
	}
	});
	calendars_list.addEventListener('remove', function(p) {
	if (me.calendars[p.id] && me.calendars[p.id].removable) {
	me.calendar_remove(me.calendars[p.id]);
	}
	});
	calendars_list.addEventListener('search-complete', function(data) {
	if (data.length)
	rcmail.display_message(rcmail.gettext('nrcalendarsfound','calendar').replace('$nr', data.length), 'voice');
	else
	rcmail.display_message(rcmail.gettext('nocalendarsfound','calendar'), 'info');
	});
	calendars_list.addEventListener('click-item', function(event) {
	// handle clicks on quickview icon: temprarily add this source and open in quickview
	if ($(event.target).hasClass('quickview') && event.data) {
	if (!me.calendars[event.data.id]) {
	event.data.readonly = true;
	event.data.active = false;
	event.data.subscribed = false;
	add_calendar_source(event.data);
	}
	me.quickview(event.data.id, event.shiftKey \|\| event.metaKey \|\| event.ctrlKey);
	}
	});

	// init (delegate) event handler on calendar list checkboxes
	$(rcmail.gui_objects.calendarslist).on('click', 'input[type=checkbox]', function(e) {
	e.stopPropagation();

	if (me.quickview_active) {
	this.checked = !this.checked;
	return false;
	}

	var id = this.value;
	if (me.calendars[id]) { // add or remove event source on click
	var action;
	if (this.checked) {
	action = 'addEventSource';
	me.calendars[id].active = true;
	}
	else {
	action = 'removeEventSource';
	me.calendars[id].active = false;
	}

	// adjust checked state of original list item
	if (calendars_list.is_search()) {
	calendars_list.container.find('input[value="'+id+'"]').prop('checked', this.checked);
	}

	// add/remove event source
	fc.fullCalendar(action, me.calendars[id]);
	rcmail.http_post('calendar', { action:'subscribe', c:{ id:id, active:me.calendars[id].active?1:0 } });
	}
	})
	.on('keypress', 'input[type=checkbox]', function(e) {
	// select calendar on <Enter>
	if (e.keyCode == 13) {
	calendars_list.select(this.value);
	return rcube_event.cancel(e);
	}
	})
	// init (delegate) event handler on quickview links
	.on('click', 'a.quickview', function(e) {
	var id = $(this).closest('li').attr('id').replace(/^rcmlical/, '');

	if (calendars_list.is_search())
	id = id.replace(/--xsR$/, '');

	if (me.calendars[id])
	me.quickview(id, e.shiftKey \|\| e.metaKey \|\| e.ctrlKey);

	e.stopPropagation();
	return false;
	});

	// register dbl-click handler to open calendar edit dialog
	$(rcmail.gui_objects.calendarslist).on('dblclick', ':not(.virtual) > .calname', function(e){
	var id = $(this).closest('li').attr('id').replace(/^rcmlical/, '');
	me.calendar_edit_dialog(me.calendars[id]);
	});

	// select default calendar
	if (settings.default_calendar && this.calendars[settings.default_calendar] && !this.calendars[settings.default_calendar].readonly)
	this.selected_calendar = settings.default_calendar;

	if (this.selected_calendar)
	this.select_calendar(this.selected_calendar);

	var viewdate = new Date();
	if (rcmail.env.date)
	viewdate.setTime(fromunixtime(rcmail.env.date));

	// add source with iTip event data for rendering
	if (rcmail.env.itip_events && rcmail.env.itip_events.length) {
	me.calendars['--invitation--itip'] = {
	events: rcmail.env.itip_events,
	className: 'fc-event-cal---invitation--itip',
	color: '#fff',
	textColor: '#333',
	editable: false,
	attendees: true
	};
	event_sources.push(me.calendars['--invitation--itip']);
	}

	// initalize the fullCalendar plugin
	var fc = $('#calendar').fullCalendar($.extend({}, fullcalendar_defaults, {
	header: {
	right: 'prev,next today',
	center: 'title',
	left: 'agendaDay,agendaWeek,month,table'
	},
	date: viewdate.getDate(),
	month: viewdate.getMonth(),
	year: viewdate.getFullYear(),
	height: $('#calendar').height(),
	eventSources: event_sources,
	selectable: true,
	selectHelper: false,
	loading: function(isLoading) {
	me.is_loading = isLoading;
	this._rc_loading = rcmail.set_busy(isLoading, 'loading', this._rc_loading);
	// trigger callback
	if (!isLoading)
	me.events_loaded($(this).fullCalendar('clientEvents').length);
	},
	// callback for date range selection
	select: function(start, end, allDay, e, view) {
	var range_select = (!allDay \|\| start.getDate() != end.getDate())
	if (dialog_check(e) && range_select)
	event_edit_dialog('new', { start:start, end:end, allDay:allDay, calendar:me.selected_calendar });
	if (range_select \|\| ignore_click)
	view.calendar.unselect();
	},
	// callback for clicks in all-day box
	dayClick: function(date, allDay, e, view) {
	var now = new Date().getTime();
	if (now - day_clicked_ts < 400 && day_clicked == date.getTime()) { // emulate double-click on day
	var enddate = new Date(); enddate.setTime(date.getTime() + DAY_MS - 60000);
	return event_edit_dialog('new', { start:date, end:enddate, allDay:allDay, calendar:me.selected_calendar });
	}

	if (!ignore_click) {
	view.calendar.gotoDate(date);
	if (day_clicked && new Date(day_clicked).getMonth() != date.getMonth())
	view.calendar.select(date, date, allDay);
	}
	day_clicked = date.getTime();
	day_clicked_ts = now;
	},
	// callback when an event was dragged and finally dropped
	eventDrop: function(event, dayDelta, minuteDelta, allDay, revertFunc) {
	if (event.end == null \|\| event.end.getTime() < event.start.getTime()) {
	event.end = new Date(event.start.getTime() + (allDay ? DAY_MS : HOUR_MS));
	}
	// moved to all-day section: set times to 12:00 - 13:00
	if (allDay && !event.allDay) {
	event.start.setHours(12);
	event.start.setMinutes(0);
	event.start.setSeconds(0);
	event.end.setHours(13);
	event.end.setMinutes(0);
	event.end.setSeconds(0);
	}
	// moved from all-day section: set times to working hours
	else if (event.allDay && !allDay) {
	var newstart = event.start.getTime();
	revertFunc(); // revert to get original duration
	var numdays = Math.max(1, Math.round((event.end.getTime() - event.start.getTime()) / DAY_MS)) - 1;
	event.start = new Date(newstart);
	event.end = new Date(newstart + numdays * DAY_MS);
	event.end.setHours(settings['work_end'] \|\| 18);
	event.end.setMinutes(0);

	if (event.end.getTime() < event.start.getTime())
	event.end = new Date(newstart + HOUR_MS);
	}

	// send move request to server
	var data = {
	id: event.id,
	calendar: event.calendar,
	start: date2servertime(event.start),
	end: date2servertime(event.end),
	allday: allDay?1:0
	};
	update_event_confirm('move', event, data);
	},
	// callback for event resizing
	eventResize: function(event, delta) {
	// sanitize event dates
	if (event.allDay)
	event.start.setHours(12);
	if (!event.end \|\| event.end.getTime() < event.start.getTime())
	event.end = new Date(event.start.getTime() + HOUR_MS);

	// send resize request to server
	var data = {
	id: event.id,
	calendar: event.calendar,
	start: date2servertime(event.start),
	end: date2servertime(event.end)
	};
	update_event_confirm('resize', event, data);
	},
	viewDisplay: function(view) {
	$('#agendaoptions')[view.name == 'table' ? 'show' : 'hide']();
	if (minical) {
	window.setTimeout(function(){ minical.datepicker('setDate', fc.fullCalendar('getDate')); }, exec_deferred);
	if (view.name != current_view)
	me.view_resize();
	current_view = view.name;
	me.update_state();
	}
	},
	viewRender: function(view) {
	if (fc && view.name == 'month')
	fc.fullCalendar('option', 'maxHeight', Math.floor((view.element.parent().height()-18) / 6) - 35);
	}
	}));

	// format time string
	var formattime = function(hour, minutes, start) {
	var time, diff, unit, duration = '', d = new Date();
	d.setHours(hour);
	d.setMinutes(minutes);
	time = $.fullCalendar.formatDate(d, settings['time_format']);
	if (start) {
	diff = Math.floor((d.getTime() - start.getTime()) / 60000);
	if (diff > 0) {
	unit = 'm';
	if (diff >= 60) {
	unit = 'h';
	diff = Math.round(diff / 3) / 20;
	}
	duration = ' (' + diff + unit + ')';
	}
	}
	return [time, duration];
	};

	var autocomplete_times = function(p, callback) {
	/* Time completions */
	var result = [];
	var now = new Date();
	var st, start = (String(this.element.attr('id')).indexOf('endtime') > 0
	&& (st = $('#edit-starttime').val())
	&& $('#edit-startdate').val() == $('#edit-enddate').val())
	? parse_datetime(st, '') : null;
	var full = p.term - 1 > 0 \|\| p.term.length > 1;
	var hours = start ? start.getHours() :
	(full ? parse_datetime(p.term, '') : now).getHours();
	var step = 15;
	var minutes = hours * 60 + (full ? 0 : now.getMinutes());
	var min = Math.ceil(minutes / step) * step % 60;
	var hour = Math.floor(Math.ceil(minutes / step) * step / 60);
	// list hours from 0:00 till now
	for (var h = start ? start.getHours() : 0; h < hours; h++)
	result.push(formattime(h, 0, start));
	// list 15min steps for the next two hours
	for (; h < hour + 2 && h < 24; h++) {
	while (min < 60) {
	result.push(formattime(h, min, start));
	min += step;
	}
	min = 0;
	}
	// list the remaining hours till 23:00
	while (h < 24)
	result.push(formattime((h++), 0, start));

	return callback(result);
	};

	var autocomplete_open = function(event, ui) {
	// scroll to current time
	var $this = $(this);
	var widget = $this.autocomplete('widget');
	var menu = $this.data('ui-autocomplete').menu;
	var amregex = /^(.+)(a[.m]*)/i;
	var pmregex = /^(.+)(a[.m]*)/i;
	var val = $(this).val().replace(amregex, '0:$1').replace(pmregex, '1:$1');
	var li, html;
	widget.css('width', '10em');
	widget.children().each(function(){
	li = $(this);
	html = li.children().first().html().replace(/\s+$.+$$/, '').replace(amregex, '0:$1').replace(pmregex, '1:$1');
	if (html.indexOf(val) == 0)
	menu._scrollIntoView(li);
	});
	};

	// if start date is changed, shift end date according to initial duration
	var shift_enddate = function(dateText) {
	var newstart = parse_datetime('0', dateText);
	var newend = new Date(newstart.getTime() + $('#edit-startdate').data('duration') * 1000);
	$('#edit-enddate').val($.fullCalendar.formatDate(newend, me.settings['date_format']));
	event_times_changed();
	};

	// Set as calculateWeek to determine the week of the year based on the ISO 8601 definition.
	// Uses the default $.datepicker.iso8601Week() function but takes firstDay setting into account.
	// This is a temporary fix until http://bugs.jqueryui.com/ticket/8420 is resolved.
	var iso8601Week = datepicker_settings.calculateWeek = function(date) {
	var mondayOffset = Math.abs(1 - datepicker_settings.firstDay);
	return $.datepicker.iso8601Week(new Date(date.getTime() + mondayOffset * 86400000));
	};

	var minical;
	var init_calendar_ui = function()
	{
	// initialize small calendar widget using jQuery UI datepicker
	minical = $('#datepicker').datepicker($.extend(datepicker_settings, {
	inline: true,
	showWeek: true,
	changeMonth: true,
	changeYear: true,
	onSelect: function(dateText, inst) {
	ignore_click = true;
	var d = minical.datepicker('getDate'); //parse_datetime('0:0', dateText);
	fc.fullCalendar('gotoDate', d).fullCalendar('select', d, d, true);
	},
	onChangeMonthYear: function(year, month, inst) {
	minical.data('year', year).data('month', month);
	},
	beforeShowDay: function(date) {
	var view = fc.fullCalendar('getView');
	var active = view.visStart && date.getTime() >= view.visStart.getTime() && date.getTime() < view.visEnd.getTime();
	return [ true, (active ? 'ui-datepicker-activerange ui-datepicker-active-' + view.name : ''), ''];
	}
	})) // set event handler for clicks on calendar week cell of the datepicker widget
	.on('click', 'td.ui-datepicker-week-col', function(e) {
	var cell = $(e.target);
	if (e.target.tagName == 'TD') {
	var base_date = minical.datepicker('getDate');
	if (minical.data('month'))
	base_date.setMonth(minical.data('month')-1);
	if (minical.data('year'))
	base_date.setYear(minical.data('year'));
	base_date.setHours(12);
	base_date.setDate(base_date.getDate() - ((base_date.getDay() + 6) % 7) + datepicker_settings.firstDay);
	var base_kw = iso8601Week(base_date),
	target_kw = parseInt(cell.html()),
	wdiff = target_kw - base_kw;
	if (wdiff > 10) // year jump
	base_date.setYear(base_date.getFullYear() - 1);
	else if (wdiff < -10)
	base_date.setYear(base_date.getFullYear() + 1);
	// select monday of the chosen calendar week
	var day_off = base_date.getDay() - datepicker_settings.firstDay,
	date = new Date(base_date.getTime() - day_off * DAY_MS + wdiff * 7 * DAY_MS);
	fc.fullCalendar('gotoDate', date).fullCalendar('setDate', date).fullCalendar('changeView', 'agendaWeek');
	minical.datepicker('setDate', date);
	}
	});

	minical.find('.ui-datepicker-inline').attr('aria-labelledby', 'aria-label-minical');

	if (rcmail.env.date) {
	var viewdate = new Date();
	viewdate.setTime(fromunixtime(rcmail.env.date));
	minical.datepicker('setDate', viewdate);
	}

	// init event dialog
	$('#eventtabs').tabs({
	activate: function(event, ui) {
	if (ui.newPanel.selector == '#event-panel-attendees' \|\| ui.newPanel.selector == '#event-panel-resources') {
	var tab = ui.newPanel.selector == '#event-panel-resources' ? 'resource' : 'attendee';
	if (!rcube_event.is_keyboard(event))
	$('#edit-'+tab+'-name').select();
	// update free-busy status if needed
	if (freebusy_ui.needsupdate && me.selected_event)
	update_freebusy_status(me.selected_event);
	// add current user as organizer if non added yet
	if (!event_attendees.length) {
	add_attendee($.extend({ role:'ORGANIZER' }, settings.identity));
	$('#edit-attendees-form .attendees-invitebox').show();
	}
	}
	// reset autocompletion on tab change (#3389)
	if (ui.oldPanel.selector == '#event-panel-attendees' \|\| ui.oldPanel.selector == '#event-panel-resources') {
	rcmail.ksearch_blur();
	}
	}
	});
	$('#edit-enddate').datepicker(datepicker_settings);
	$('#edit-startdate').datepicker(datepicker_settings).datepicker('option', 'onSelect', shift_enddate).change(function(){ shift_enddate(this.value); });
	$('#edit-enddate').datepicker('option', 'onSelect', event_times_changed).change(event_times_changed);
	$('#edit-allday').click(function(){ $('#edit-starttime, #edit-endtime')[(this.checked?'hide':'show')](); event_times_changed(); });

	// configure drop-down menu on time input fields based on jquery UI autocomplete
	$('#edit-starttime, #edit-endtime, #eventedit input.edit-alarm-time')
	.attr('autocomplete', "off")
	.autocomplete({
	delay: 100,
	minLength: 1,
	appendTo: '#eventedit',
	source: autocomplete_times,
	open: autocomplete_open,
	change: event_times_changed,
	select: function(event, ui) {
	$(this).val(ui.item[0]).change();
	return false;
	}
	})
	.click(function() { // show drop-down upon clicks
	$(this).autocomplete('search', $(this).val() ? $(this).val().replace(/\D.*/, "") : " ");
	}).each(function(){
	$(this).data('ui-autocomplete')._renderItem = function(ul, item) {
	return $('<li>')
	.data('ui-autocomplete-item', item)
	.append('<a>' + item[0] + item[1] + '</a>')
	.appendTo(ul);
	};
	});

	// adjust end time when changing start
	$('#edit-starttime').change(function(e) {
	var dstart = $('#edit-startdate'),
	newstart = parse_datetime(this.value, dstart.val()),
	newend = new Date(newstart.getTime() + dstart.data('duration') * 1000);
	$('#edit-endtime').val($.fullCalendar.formatDate(newend, me.settings['time_format']));
	$('#edit-enddate').val($.fullCalendar.formatDate(newend, me.settings['date_format']));
	event_times_changed();
	});

	// register events on alarms and recurrence fields
	me.init_alarms_edit('#edit-alarms');
	me.init_recurrence_edit('#eventedit');

	// reload free-busy status when changing the organizer identity
	$('#eventedit').on('change', '#edit-identities-list', function(e) {
	var email = settings.identities[$(this).val()],
	icon = $(this).closest('tr').find('img.availabilityicon');

	if (email && icon.length) {
	icon.attr('data-email', email);
	check_freebusy_status(icon, email, me.selected_event);
	}
	});

	$('#event-export-startdate').datepicker(datepicker_settings);

	// init attendees autocompletion
	var ac_props;
	// parallel autocompletion
	if (rcmail.env.autocomplete_threads > 0) {
	ac_props = {
	threads: rcmail.env.autocomplete_threads,
	sources: rcmail.env.autocomplete_sources
	};
	}
	rcmail.init_address_input_events($('#edit-attendee-name'), ac_props);
	rcmail.addEventListener('autocomplete_insert', function(e) {
	var success = false;
	if (e.field.name == 'participant') {
	success = add_attendees(e.insert, { role:'REQ-PARTICIPANT', status:'NEEDS-ACTION', cutype:(e.data && e.data.type == 'group' ? 'GROUP' : 'INDIVIDUAL') });
	}
	else if (e.field.name == 'resource' && e.data && e.data.email) {
	success = add_attendee($.extend(e.data, { role:'REQ-PARTICIPANT', status:'NEEDS-ACTION', cutype:'RESOURCE' }));
	}
	if (e.field && success) {
	e.field.value = '';
	}
	});

	$('#edit-attendee-add').click(function(){
	var input = $('#edit-attendee-name');
	rcmail.ksearch_blur();
	if (add_attendees(input.val(), { role:'REQ-PARTICIPANT', status:'NEEDS-ACTION', cutype:'INDIVIDUAL' })) {
	input.val('');
	}
	});

	rcmail.init_address_input_events($('#edit-resource-name'), { action:'calendar/resources-autocomplete' });

	$('#edit-resource-add').click(function(){
	var input = $('#edit-resource-name');
	rcmail.ksearch_blur();
	if (add_attendees(input.val(), { role:'REQ-PARTICIPANT', status:'NEEDS-ACTION', cutype:'RESOURCE' })) {
	input.val('');
	}
	});

	$('#edit-resource-find').click(function(){
	event_resources_dialog();
	return false;
	});

	// handle change of "send invitations" checkbox
	$('#edit-attendees-invite').change(function() {
	$('#edit-attendees-donotify,input.edit-attendee-reply').prop('checked', this.checked);
	// hide/show comment field
	$('#eventedit .attendees-commentbox')[this.checked ? 'show' : 'hide']();
	});

	// delegate change event to "send invitations" checkbox
	$('#edit-attendees-donotify').change(function() {
	$('#edit-attendees-invite').click();
	return false;
	});

	$('#edit-attendee-schedule').click(function(){
	event_freebusy_dialog();
	});

	$('#shedule-freebusy-prev').html(bw.ie6 ? '<<' : '◄').button().click(function(){ render_freebusy_grid(-1); });
	$('#shedule-freebusy-next').html(bw.ie6 ? '>>' : '►').button().click(function(){ render_freebusy_grid(1); }).parent().buttonset();

	$('#shedule-find-prev').button().click(function(){ freebusy_find_slot(-1); });
	$('#shedule-find-next').button().click(function(){ freebusy_find_slot(1); });

	$('#schedule-freebusy-workinghours').click(function(){
	freebusy_ui.workinhoursonly = this.checked;
	$('#workinghourscss').remove();
	if (this.checked)
	$('<style type="text/css" id="workinghourscss"> td.offhours { opacity:0.3; filter:alpha(opacity=30) } </style>').appendTo('head');
	});

	$('#event-rsvp input.button').click(function(e) {
	- event_rsvp($(this).attr('rel'))
	+ event_rsvp(this)
	});

	$('#eventedit input.edit-recurring-savemode').change(function(e) {
	var sel = $('input.edit-recurring-savemode:checked').val(),
	disabled = sel == 'current' \|\| sel == 'future';
	$('#event-panel-recurrence input, #event-panel-recurrence select, #event-panel-attachments input').prop('disabled', disabled);
	$('#event-panel-recurrence, #event-panel-attachments')[(disabled?'addClass':'removeClass')]('disabled');
	})

	$('#eventshow .changersvp').click(function(e) {
	var d = $('#eventshow'),
	h = -$(this).closest('.event-line').toggle().height();
	$('#event-rsvp').slideDown(300, function() {
	h += $(this).height();
	me.dialog_resize(d.get(0), d.height() + h, d.outerWidth() - 50);
	});
	return false;
	})

	// register click handler for message links
	$('#edit-event-links, #event-links').on('click', 'li a.messagelink', function(e) {
	rcmail.open_window(this.href);
	if (!rcube_event.is_keyboard(e) && this.blur)
	this.blur();
	return false;
	});

	// register click handler for message delete buttons
	$('#edit-event-links').on('click', 'li a.delete', function(e) {
	remove_link(e.target);
	return false;
	});

	$('#agenda-listrange').change(function(e){
	settings['agenda_range'] = parseInt($(this).val());
	fc.fullCalendar('option', 'listRange', settings['agenda_range']).fullCalendar('render');
	// TODO: save new settings in prefs
	}).val(settings['agenda_range']);

	$('#agenda-listsections').change(function(e){
	settings['agenda_sections'] = $(this).val();
	fc.fullCalendar('option', 'listSections', settings['agenda_sections']).fullCalendar('render');
	// TODO: save new settings in prefs
	}).val(fc.fullCalendar('option', 'listSections'));

	// hide event dialog when clicking somewhere into document
	$(document).bind('mousedown', dialog_check);

	rcmail.set_busy(false, 'loading', ui_loading);
	}

	// initialize more UI elements (deferred)
	window.setTimeout(init_calendar_ui, exec_deferred);

	// fetch counts for some calendars
	fetch_counts();

	// add proprietary css styles if not IE
	if (!bw.ie)
	$('div.fc-content').addClass('rcube-fc-content');

	// IE supresses 2nd click event when double-clicking
	if (bw.ie && bw.vendver < 9) {
	$('div.fc-content').bind('dblclick', function(e){
	if (!$(this).hasClass('fc-widget-header') && fc.fullCalendar('getView').name != 'table') {
	var date = fc.fullCalendar('getDate');
	var enddate = new Date(); enddate.setTime(date.getTime() + DAY_MS - 60000);
	event_edit_dialog('new', { start:date, end:enddate, allDay:true, calendar:me.selected_calendar });
	}
	});
	}
	} // end rcube_calendar class


	/* calendar plugin initialization */
	window.rcmail && rcmail.addEventListener('init', function(evt) {
	// configure toolbar buttons
	rcmail.register_command('addevent', function(){ cal.add_event(); }, true);
	rcmail.register_command('print', function(){ cal.print_calendars(); }, true);

	// configure list operations
	rcmail.register_command('calendar-create', function(){ cal.calendar_edit_dialog(null); }, true);
	rcmail.register_command('calendar-edit', function(){ cal.calendar_edit_dialog(cal.calendars[cal.selected_calendar]); }, false);
	rcmail.register_command('calendar-remove', function(){ cal.calendar_remove(cal.calendars[cal.selected_calendar]); }, false);
	rcmail.register_command('calendar-delete', function(){ cal.calendar_delete(cal.calendars[cal.selected_calendar]); }, false);
	rcmail.register_command('events-import', function(){ cal.import_events(cal.calendars[cal.selected_calendar]); }, true);
	rcmail.register_command('calendar-showurl', function(){ cal.showurl(cal.calendars[cal.selected_calendar]); }, false);
	rcmail.register_command('event-download', function(){ cal.event_download(cal.selected_event); }, true);
	rcmail.register_command('event-sendbymail', function(p, obj, e){ cal.event_sendbymail(cal.selected_event, e); }, true);
	rcmail.register_command('event-history', function(p, obj, e){ cal.event_history_dialog(cal.selected_event); }, false);

	// search and export events
	rcmail.register_command('export', function(){ cal.export_events(cal.calendars[cal.selected_calendar]); }, true);
	rcmail.register_command('search', function(){ cal.quicksearch(); }, true);
	rcmail.register_command('reset-search', function(){ cal.reset_quicksearch(); }, true);

	// resource invitation dialog
	rcmail.register_command('search-resource', function(){ cal.resource_search(); }, true);
	rcmail.register_command('reset-resource-search', function(){ cal.reset_resource_search(); }, true);
	rcmail.register_command('add-resource', function(){ cal.add_resource2event(); }, false);

	// register callback commands
	rcmail.addEventListener('plugin.destroy_source', function(p){ cal.calendar_destroy_source(p.id); });
	rcmail.addEventListener('plugin.unlock_saving', function(p){ cal.unlock_saving(); });
	rcmail.addEventListener('plugin.refresh_calendar', function(p){ cal.refresh(p); });
	rcmail.addEventListener('plugin.import_success', function(p){ cal.import_success(p); });
	rcmail.addEventListener('plugin.import_error', function(p){ cal.import_error(p); });
	rcmail.addEventListener('plugin.update_counts', function(p){ cal.update_counts(p); });
	rcmail.addEventListener('plugin.reload_view', function(p){ cal.reload_view(p); });
	rcmail.addEventListener('plugin.resource_data', function(p){ cal.resource_data_load(p); });
	rcmail.addEventListener('plugin.resource_owner', function(p){ cal.resource_owner_load(p); });
	rcmail.addEventListener('plugin.render_event_changelog', function(data){ cal.render_event_changelog(data); });
	rcmail.addEventListener('plugin.event_show_diff', function(data){ cal.event_show_diff(data); });
	rcmail.addEventListener('plugin.event_show_revision', function(data){ cal.event_show_dialog(data, null, true); });
	rcmail.addEventListener('plugin.itip_message_processed', function(data){ cal.itip_message_processed(data); });
	rcmail.addEventListener('requestrefresh', function(q){ return cal.before_refresh(q); });

	// let's go
	var cal = new rcube_calendar_ui($.extend(rcmail.env.calendar_settings, rcmail.env.libcal_settings));

	$(window).resize(function(e) {
	// check target due to bugs in jquery
	// http://bugs.jqueryui.com/ticket/7514
	// http://bugs.jquery.com/ticket/9841
	if (e.target == window) {
	cal.view_resize();
	}
	}).resize();

	// show calendars list when ready
	$('#calendars').css('visibility', 'inherit');

	// show toolbar
	$('#toolbar').show();

	});
	diff --git a/plugins/calendar/skins/larry/calendar.css b/plugins/calendar/skins/larry/calendar.css
	index 0fec69cb..fef16bd8 100644
	--- a/plugins/calendar/skins/larry/calendar.css
	+++ b/plugins/calendar/skins/larry/calendar.css
	@@ -1,2334 +1,2318 @@
	/**
	* Roundcube Calendar plugin styles for skin "Larry"
	*
	* Copyright (c) 2012-2014, Kolab Systems AG <contact@kolabsys.com>
	* Screendesign by FLINT / Büro für Gestaltung, bueroflint.com
	*
	* The contents are subject to the Creative Commons Attribution-ShareAlike
	* License. It is allowed to copy, distribute, transmit and to adapt the work
	* by keeping credits to the original autors in the README file.
	* See http://creativecommons.org/licenses/by-sa/3.0/ for details.
	*/

	body.calendarmain {
	overflow: hidden;
	}

	body.calendarmain #mainscreen {
	left: 0;
	}

	/* overrides for tablets and mobile phones */
	@media screen and (max-device-width: 1024px){
	body.calendarmain {
	overflow: visible;
	}

	body.calendarmain #mainscreen {
	min-width: 1000px !important;
	min-height: 520px !important;
	}

	body.calendarmain #header {
	min-width: 1020px !important;
	}
	}

	#calendarsidebar {
	position: absolute;
	top: 0;
	left: 10px;
	bottom: 0;
	width: 250px;
	}

	#datepicker {
	position: absolute;
	top: 40px;
	left: 0;
	width: 100%;
	min-height: 190px;
	}

	#datepicker .ui-datepicker {
	width: 100% !important;
	box-shadow: none;
	-moz-box-shadow: none;
	-webkit-box-shadow: none;
	}

	#datepicker .ui-datepicker td a {
	padding: 5px 4px;
	font-size: 12px;
	}

	#datepicker td.ui-datepicker-activerange {
	border-color: #69a2b6;
	}

	#datepicker .ui-datepicker-activerange a {
	color: #185d7a;
	background: #d9f1fb;
	background: -moz-linear-gradient(top, #d9f1fb 0%, #c5e3ee 100%);
	background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#d9f1fb), color-stop(100%,#c5e3ee));
	background: -o-linear-gradient(top, #d9f1fb 0%, #c5e3ee 100%);
	background: -ms-linear-gradient(top, #d9f1fb 0%, #c5e3ee 100%);
	background: linear-gradient(top, #d9f1fb 0%, #c5e3ee 100%);
	filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#d9f1fb', endColorstr='#c5e3ee', GradientType=0);
	}

	#datepicker .ui-datepicker-days-cell-over a.ui-state-default {
	color: #fff;
	border-color: #2fa0c0;
	background: rgba(73,180,210,0.6);
	text-shadow: 0px 1px 1px #666;
	filter: none;
	}

	#datepicker .ui-datepicker-activerange a.ui-state-active {
	color: #fff;
	background: #00acd4;
	background: -moz-linear-gradient(top, #00acd4 0%, #008fc7 100%);
	background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#00acd4), color-stop(100%,#008fc7));
	background: -o-linear-gradient(top, #00acd4 0%, #008fc7 100%);
	background: -ms-linear-gradient(top, #00acd4 0%, #008fc7 100%);
	background: linear-gradient(top, #00acd4 0%, #008fc7 100%);
	filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#00acd4', endColorstr='#008fc7', GradientType=0);
	}

	#datepicker td.ui-datepicker-week-col {
	cursor: pointer;
	}

	#datepicker .ui-datepicker-title {
	margin: 2px 2.3em 3px 2.3em;
	}

	#datepicker .ui-datepicker .ui-datepicker-prev,
	#datepicker .ui-datepicker .ui-datepicker-next {
	top: 4px;
	}

	#calsidebarsplitter {
	position: absolute;
	left: 264px;
	width: 6px;
	top: 40px !important;
	bottom: 0;
	background: url(images/toggle.gif) -1px 48% no-repeat transparent;
	}

	div.sidebarclosed {
	background-position: -8px 48% !important;
	cursor: pointer;
	}

	#calsidebarsplitter:hover {
	background-color: #ddd;
	}

	#calendar {
	position: absolute;
	top: 0;
	left: 276px;
	right: 0;
	bottom: 0;
	}

	.calendarmain #message.statusbar {
	border: 1px solid #c3c3c3;
	border-bottom-color: #ababab;
	}

	#timezonedisplay {
	position: absolute;
	bottom: 5px;
	right: 12px;
	font-size: 0.85em;
	color: #666;
	}

	#print {
	width: 680px;
	}

	pre {
	font-family: "Lucida Grande", Verdana, Arial, Helvetica, sans-serif;
	}

	#calendars {
	position: absolute;
	top: 276px;
	left: 0;
	bottom: 0;
	right: 0;
	}

	#calendars .boxtitle {
	position: relative;
	}

	#calendars .boxtitle a.iconbutton.search {
	position: absolute;
	top: 8px;
	right: 8px;
	width: 16px;
	cursor: pointer;
	background-position: -2px -317px;
	}

	#calendars .listsearchbox {
	display: none;
	}

	#calendars .listsearchbox.expanded {
	display: block;
	}

	#calendars .scroller {
	top: 34px;
	}

	#calendars .listsearchbox.expanded + .scroller {
	top: 68px;
	}

	#calendars .treelist li {
	margin: 0;
	position: relative;
	}

	#calendars .treelist li div.folder,
	#calendars .treelist li div.calendar {
	position: relative;
	height: 28px;
	}

	#calendars .treelist li div.virtual {
	height: 22px;
	}

	#calendars .treelist li span.calname {
	display: block;
	padding: 0px 18px 2px 2px;
	position: absolute;
	top: 7px;
	left: 38px;
	right: 45px;
	cursor: default;
	background: url(images/calendars.png) right 20px no-repeat;
	overflow-x: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
	color: #004458;
	}

	.quickview-active #calendars .treelist div input,
	.quickview-active #calendars .treelist div .calname {
	opacity: 0.35;
	}

	.quickview-active #calendars .treelist div.focusview .calname {
	opacity: 1.0;
	background-image: none;
	}

	#calendars .treelist li div.virtual > span.calname {
	color: #aaa;
	top: 4px;
	left: 20px;
	}

	#calendars .treelist li.x-birthdays span.calname,
	#calendars .treelist li.x-invitations span.calname {
	font-style: italic;
	}

	#calendars .treelist.flat li span.calname {
	left: 24px;
	right: 42px;
	}

	#calendars .treelist li span.handle {
	display: inline-block;
	position: absolute;
	top: 8px;
	right: 6px;
	padding: 0;
	width: 10px;
	height: 10px;
	border-radius: 7px;
	font-size: 0.8em;
	border: 1px solid rgba(0, 0, 0, 0.5);
	-webkit-box-shadow: inset 0px 0 1px 1px rgba(0, 0, 0, 0.3);
	-moz-box-shadow: inset 0px 0 1px 1px rgba(0, 0, 0, 0.3);
	box-shadow: inset 0px 0 1px 1px rgba(0, 0, 0, 0.3);
	}

	#calendars .treelist div span.actions {
	display: inline-block;
	position: absolute;
	top: 2px;
	right: 22px;
	padding: 5px 20px 0 6px;
	/* min-width: 40px; */
	height: 19px;
	text-align: right;
	z-index: 4;
	}

	#calendars .treelist div:hover span.actions {
	top: 1px;
	right: 21px;
	border: 1px solid #c6c6c6;
	border-radius: 4px;
	background: #f7f7f7;
	background: -moz-linear-gradient(top, #f9f9f9 0%, #e6e6e6 100%);
	background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#f9f9f9), color-stop(100%,#e6e6e6));
	background: -o-linear-gradient(top, #f9f9f9 0%, #e6e6e6 100%);
	background: -ms-linear-gradient(top, #f9f9f9 0%, #e6e6e6 100%);
	background: linear-gradient(top, #f9f9f9 0%, #e6e6e6 100%);
	filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#f9f9f9', endColorstr='#e6e6e6', GradientType=0);
	}

	#calendars .treelist li a.subscribed {
	display: inline-block;
	position: absolute;
	top: 5px;
	right: 3px;
	height: 16px;
	width: 16px;
	padding: 0;
	background: url(images/calendars.png) -100px 0 no-repeat;
	overflow: hidden;
	text-indent: -5000px;
	cursor: pointer;
	}

	#calendars .treelist div:hover a.subscribed,
	#calendars .treelist div a.subscribed:focus {
	background-position: 0 -110px;
	}

	#calendars .treelist div.subscribed a.subscribed,
	#calendars .treelist div.subscribed a.subscribed:focus {
	background-position: -16px -110px;
	}

	#calendars .treelist div.subscribed.partial a.subscribed,
	#calendars .treelist div.subscribed.partial a.subscribed:focus {
	background-position: -16px -148px;
	}

	#calendars .treelist div a.remove:focus,
	#calendars .treelist div a.quickview:focus,
	#calendars .treelist div a.subscribed:focus {
	border-radius: 3px;
	outline: 2px solid rgba(30,150,192, 0.5);
	}

	#calendars .treelist div a.remove,
	#calendars .treelist div a.quickview {
	display: inline-block;
	width: 16px;
	height: 16px;
	margin-right: 4px;
	padding: 0;
	background: url(images/calendars.png) -100px 0 no-repeat;
	overflow: hidden;
	text-indent: -5000px;
	cursor: pointer;
	}

	#calendars .treelist div a.quickview:focus,
	#calendars .treelist div:hover a.quickview {
	background-position: 0 -128px;
	background-color: transparent !important;
	}

	#calendars .treelist div.focusview a.quickview {
	background-position: -16px -128px;
	}

	#calendars .treelist div a.remove:focus,
	#calendars .treelist div:hover a.remove {
	background-position: -16px -168px;
	background-color: transparent !important;
	}

	#calendars .searchresults .treelist div a.remove {
	display: none;
	}

	#calendars .treelist li input {
	position: absolute;
	top: 5px;
	left: 18px;
	}

	#calendars .treelist li div.treetoggle {
	top: 8px;
	}

	#calendars .treelist li.virtual div.treetoggle {
	top: 6px;
	}

	#calendars .treelist.flat li input {
	left: 4px;
	}

	#calendars .treelist ul li div.folder,
	#calendars .treelist ul li div.calendar {
	margin-left: 16px;
	}

	#calendars .treelist ul ul li div.folder,
	#calendars .treelist ul ul li div.calendar {
	margin-left: 32px;
	}

	#calendars .treelist ul ul ul li div.folder,
	#calendars .treelist ul ul ul li div.calendar {
	margin-left: 48px;
	}

	#calendars .treelist li.selected > div.calendar {
	background-color: #c7e3ef;
	}

	#calendars .treelist li.selected > span.calname {
	font-weight: bold;
	}

	#calendars .treelist div.readonly span.calname {
	background-position: right -20px;
	}

	#calendars .treelist li.user > div > span.calname {
	background-position: right -38px;
	}
	/*
	#calendars .treelist div.user.readonly span.calname {
	background-position: right -56px;
	}

	#calendars .treelist div.shared span.calname {
	background-position: right -74px;
	}

	#calendars .treelist div.shared.readonly span.calname {
	background-position: right -92px;
	}
	*/

	#calendars .treelist .calendar .count {
	position: absolute;
	display: inline-block;
	top: 5px;
	right: 68px;
	min-width: 1.3em;
	padding: 2px 4px;
	background: #005d76;
	background: -moz-linear-gradient(top, #005d76 0%, #004558 100%);
	background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#005d76), color-stop(100%,#004558));
	background: -o-linear-gradient(top, #005d76 0%, #004558 100%);
	background: -ms-linear-gradient(top, #005d76 0%, #004558 100%);
	background: linear-gradient(to bottom, #005d76 0%, #004558 100%);
	-webkit-box-shadow: inset 0 1px 1px 0 #002635;
	box-shadow: inset 0 1px 1px 0 #002635;
	border-radius: 10px;
	color: #fff;
	text-align: center;
	font-style: normal;
	font-weight: bold;
	text-shadow: none;
	z-index: 3;
	}

	#calendars .searchresults {
	background: #b0ccd7;
	margin-top: 8px;
	}

	#calendars .searchresults .boxtitle {
	background: none;
	padding: 2px 8px 2px 8px;
	}

	#calendars .searchresults .listing li {
	background-color: #c7e3ef;
	}

	#calfeedurl,
	#caldavurl {
	width: 98%;
	background: #fbfbfb;
	padding: 4px;
	margin-bottom: 1em;
	resize: none;
	}

	#agendalist {
	width: 100%;
	margin: 0 auto;
	margin-top: 60px;
	border: 1px solid #C1DAD7;
	display: none;
	}

	#agendalist table {
	width: 100%;
	}

	#agendalist td,
	#agendalist th {
	border-right: 1px solid #C1DAD7;
	border-bottom: 1px solid #C1DAD7;
	background: #fff;
	padding: 6px 6px 6px 12px;
	}

	#agendalist tr {
	vertical-align: top;
	}

	#agendalist th {
	font-weight: bold;
	}

	#calendartoolbar {
	position: absolute;
	top: -6px;
	left: 0;
	height: 40px;
	white-space: nowrap;
	}

	#calendartoolbar a.button {
	background-image: url(images/toolbar.png);
	padding-left: 0;
	padding-right: 0;
	min-width: 50px;
	max-width: 60px;
	}

	#calendartoolbar a.button.addevent {
	background-position: center 1px;
	max-width: 70px;
	}

	#calendartoolbar a.button.export {
	background-position: center -40px;
	}

	#calendartoolbar a.button.import {
	background-position: center -440px;
	}

	#calendartoolbar a.button.print {
	background-position: center -80px;
	}

	body.calendarmain #quicksearchbar {
	z-index: 20;
	}

	body.calendarmain #searchmenulink {
	width: 15px;
	}

	.calendarmain div.uidialog {
	display: none;
	}

	#user {
	position: absolute;
	top: 10px;
	right: 100px;
	left: 100px;
	text-align: center;
	}

	a.morelink {
	font-size: 90%;
	color: #0069a6;
	text-decoration: none;
	}

	a.morelink:hover {
	text-decoration: underline;
	}

	a.miniColors-trigger {
	margin-top: -3px;
	}

	.calendar.attachmentwin #attachmenttoolbar {
	position: relative;
	top: -6px;
	height: 40px;
	}

	.calendar.attachmentwin #attachmentcontainer {
	position: absolute;
	top: 0;
	left: 232px;
	right: 0;
	bottom: 0;
	}

	.calendar.attachmentwin #attachmentframe {
	width: 100%;
	height: 100%;
	border: 0;
	background-color: #fff;
	border-radius: 4px;
	}

	.calendar.attachmentwin #partheader {
	position: absolute;
	top: 0;
	left: 0;
	width: 220px;
	bottom: 0;
	}

	.calendar.attachmentwin #partheader table {
	table-layout: fixed;
	overflow: hidden;
	}

	.calendar.attachmentwin #partheader table td {
	color: #666;
	padding: 4px 6px;
	text-overflow: ellipsis;
	overflow: hidden;
	}

	.calendar.attachmentwin #partheader table td.header {
	font-weight: bold;
	}

	.calendar.attachmentwin #partheader table td.title {
	width: 60px;
	padding-right: 0;
	}

	#edit-attachments {
	margin: 0.6em 0;
	}

	#edit-attachments ul li {
	display: block;
	color: #333;
	font-weight: bold;
	padding: 4px 4px 3px 30px;
	text-shadow: 0px 1px 1px #fff;
	text-decoration: none;
	white-space: nowrap;
	line-height: 20px;
	}

	#edit-attachments ul li a.file {
	padding: 0;
	}

	#edit-attachments-form {
	margin-top: 1em;
	padding-top: 0.8em;
	border-top: 2px solid #fafafa;
	}

	#edit-attachments-form .formbuttons {
	margin: 0.5em 0;
	}

	#eventedit .droptarget {
	background-image: url(../../../../skins/larry/images/filedrop.png) !important;
	background-position: center bottom !important;
	background-repeat: no-repeat !important;
	}

	#eventedit .droptarget.hover,
	#eventedit .droptarget.active {
	border-color: #019bc6;
	box-shadow: 0 0 3px 2px rgba(71,135,177, 0.5);
	-moz-box-shadow: 0 0 3px 2px rgba(71,135,177, 0.5);
	-webkit-box-shadow: 0 0 3px 2px rgba(71,135,177, 0.5);
	-o-box-shadow: 0 0 3px 2px rgba(71,135,177, 0.5);
	}

	#eventedit .droptarget.hover {
	background-color: #d9ecf4;
	box-shadow: 0 0 5px 2px rgba(71,135,177, 0.9);
	-moz-box-shadow: 0 0 5px 2px rgba(71,135,177, 0.9);
	-webkit-box-shadow: 0 0 5px 2px rgba(71,135,177, 0.9);
	-o-box-shadow: 0 0 5px 2px rgba(71,135,177, 0.9);
	}

	#event-attachments .attachmentslist li {
	float: left;
	margin-right: 1em;
	}

	#event-attachments .attachmentslist li a {
	outline: none;
	}

	#event-panel-attachments.disabled .attachmentslist li a.delete {
	visibility: hidden;
	}

	.event-attendees span.attendee {
	padding-right: 18px;
	margin-right: 0.5em;
	background: url(images/attendee-status.png) right 0 no-repeat;
	}

	.event-attendees span.attendee a.mailtolink {
	text-decoration: none;
	white-space: nowrap;
	outline: none;
	}

	.event-attendees span.attendee a.mailtolink:hover {
	text-decoration: underline;
	}

	.event-attendees span.accepted {
	background-position: right -20px;
	}

	.event-attendees span.declined {
	background-position: right -40px;
	}

	.event-attendees span.tentative {
	background-position: right -60px;
	}

	.event-attendees span.delegated {
	background-position: right -180px;
	}

	.event-attendees span.organizer {
	background-position: right -80px;
	}

	#all-event-attendees span.attendee {
	display: block;
	margin-bottom: 0.4em;
	padding-bottom: 0.3em;
	border-bottom: 1px solid #ddd;
	}

	.calendarmain .fc-view-table td.fc-list-header,
	#attendees-freebusy-table h3.boxtitle,
	#schedule-freebusy-times thead th,
	.edit-attendees-table thead th
	{
	color: #69939e;
	font-size: 11px;
	font-weight: bold;
	background: #d6eaf3;
	background: -moz-linear-gradient(left, #e3f2f6 0, #d6eaf3 14px, #d6eaf3 100%);
	background: -webkit-gradient(linear, left top, right top, color-stop(0,#e3f2f6), color-stop(8%,#d6eaf3), color-stop(100%,#d6eaf3));
	background: -o-linear-gradient(left, #e3f2f6 0, #d6eaf3 14px, #d6eaf3 100%);
	background: -ms-linear-gradient(left, #e3f2f6 0, #d6eaf3 14px ,#d6eaf3 100%);
	background: linear-gradient(left, #e3f2f6 0, #d6eaf3 14px, #d6eaf3 100%);
	border: 0;
	border-bottom: 1px solid #ccc;
	height: 18px;
	line-height: 18px;
	padding: 8px 7px 3px 7px;
	}

	/* jQuery UI overrides */

	.calendarmain .eventdialog h1 {
	font-size: 18px;
	margin: -0.3em 0 0.4em 0;
	}

	.calendarmain .eventdialog label,
	.calendarmain .eventdialog h5.label {
	font-weight: normal;
	font-size: 1em;
	color: #999;
	margin: 0 0 0.2em 0;
	}

	.calendarmain .eventdialog label span.index,
	.calendarmain .eventdialog h5.label .index {
	vertical-align: inherit;
	margin-left: 0.6em;
	}

	.calendarmain .eventdialog {
	margin: 0 -0.2em;
	}

	.calendarmain .eventdialog.status-cancelled {
	background: url(images/badge_cancelled.png) top right no-repeat;
	}

	.calendarmain .eventdialog.sensitivity-private {
	background: url(images/badge_private.png) top right no-repeat;
	}

	.calendarmain .eventdialog.sensitivity-confidential {
	background: url(images/badge_confidential.png) top right no-repeat;
	}

	.calendarmain .sensitivity-private #event-title {
	margin-right: 50px;
	}

	.calendarmain .sensitivity-confidential #event-title {
	margin-right: 60px;
	}

	.calendarmain .eventdialog div.event-line {
	margin-top: 0.1em;
	margin-bottom: 0.3em;
	}

	.calendarmain .eventdialog div.event-line a.iconbutton {
	margin-left: 0.5em;
	line-height: 17px;
	}

	.calendarmain .eventdialog div.event-line span.event-text + label {
	margin-left: 2em;
	}

	.calendarmain .eventdialog #event-rsvp-comment,
	.calendarmain .eventdialog #event-created-changed {
	margin-top: 0.6em;
	}

	.eventdialog .event-text-old,
	.eventdialog .event-text-new,
	.eventdialog .event-text-diff {
	padding: 2px;
	}

	.eventdialog .event-text-diff del,
	.eventdialog .event-text-diff ins {
	text-decoration: none;
	color: inherit;
	}

	.eventdialog .event-text-old,
	.eventdialog .event-text-diff del {
	background-color: #fdd;
	/* text-decoration: line-through; */
	}

	.eventdialog .event-text-new,
	.eventdialog .event-text-diff ins {
	background-color: #dfd;
	}

	#eventdiff .attachmentslist li a,
	#eventdiff .attachmentslist li a:hover {
	cursor: default;
	text-decoration: none;
	}

	#eventhistory .loading {
	color: #666;
	margin: 1em 0;
	padding: 1px 0 2px 24px;
	background: url(images/loading_blue.gif) top left no-repeat;
	}

	#eventhistory .compare-button {
	margin: 4px 0;
	}

	#event-changelog-table tbody td {
	padding: 4px 7px;
	vertical-align: middle;
	}

	#event-changelog-table tbody tr:last-child td {
	border-bottom: 0;
	}

	#event-changelog-table tbody tr.undisclosed td.date,
	#event-changelog-table tbody tr.undisclosed td.user {
	font-style: italic;
	}

	#event-changelog-table .diff {
	width: 4em;
	padding: 2px;
	}

	#event-changelog-table .revision {
	width: 7em;
	}

	#event-changelog-table .date {
	width: 11em;
	}

	#event-changelog-table .user {
	width: auto;
	}

	#event-changelog-table .operation {
	width: 15%;
	}

	#event-changelog-table .actions {
	width: 50px;
	text-align: right;
	padding: 4px;
	}

	#event-changelog-table td a.iconbutton.restore,
	#event-changelog-table td a.iconbutton.preview {
	width: 16px;
	margin-right: 2px;
	background-image: url(images/calendars.png);
	background-position: -1px -147px;
	}

	#event-changelog-table td a.iconbutton.restore {
	background-image: url(images/calendars.png);
	background-position: -1px -167px;
	}

	#event-changelog-table tr.first td a.iconbutton {
	opacity: 0.3;
	cursor: default;
	}

	#event-partstat .changersvp {
	cursor: pointer;
	color: #333;
	text-decoration: none;
	}

	#event-partstat .iconbutton {
	visibility: hidden;
	}

	#event-partstat .changersvp:focus .iconbutton,
	#event-partstat:hover .iconbutton {
	visibility: visible;
	}

	#eventedit {
	position: relative;
	top: -1.5em;
	padding: 0.5em 0.1em;
	margin: 0 -0.2em;
	}

	#eventedit input.text,
	#eventedit textarea {
	width: 97%;
	}

	#eventtabs {
	position: relative;
	padding: 0;
	border: 0;
	border-radius: 0;
	}

	div.form-section,
	.calendarmain .eventdialog div.event-section,
	#eventtabs div.event-section {
	margin-top: 0.2em;
	margin-bottom: 0.6em;
	}

	#eventtabs .border-after {
	padding-bottom: 0.8em;
	margin-bottom: 0.8em;
	border-bottom: 2px solid #fafafa;
	}

	.calendarmain .eventdialog label,
	#eventedit label,
	.form-section label {
	display: inline-block;
	min-width: 7em;
	padding-right: 0.5em;
	}

	.calendarmain .eventdialog #event-url .event-text {
	overflow: hidden;
	white-space: nowrap;
	text-overflow: ellipsis;
	}

	#event-links .attachmentslist {
	display: inline-block;
	}

	#event-links label,
	#edit-event-links label {
	float: left;
	margin-top: 0.3em;
	padding-right: 0.75em;
	}

	#edit-event-links .event-text {
	margin-left: 8em;
	min-height: 22px;
	}

	#edit-event-links .attachmentslist li.message a.messagelink,
	#event-links .attachmentslist li.message a.messagelink {
	padding: 0 0 0 24px;
	}

	#edit-event-links .attachmentslist li a.delete {
	top: 0;
	background-position: -6px -378px;
	}

	#edit-event-links .attachmentslist li.deleted a.messagelink,
	#edit-event-links .attachmentslist li.deleted a.messagelink:hover {
	text-decoration: line-through;
	}

	#eventedit .formtable td.label {
	min-width: 6em;
	}

	td.topalign {
	vertical-align: top;
	}

	#eventedit label.weekday,
	#eventedit label.monthday {
	min-width: 3em;
	}

	#eventedit label.month {
	min-width: 5em;
	}

	#eventedit .formtable td {
	padding: 0.2em 0;
	}

	.ui-dialog .event-update-confirm {
	padding: 0 0.5em 0.5em 0.5em;
	}

	.event-dialog-message,
	.event-update-confirm .message {
	margin-top: 0.5em;
	padding: 0.8em;
	border: 1px solid #ffdf0e;
	background-color: #fef893;
	}

	.event-dialog-message .message,
	.event-update-confirm .message {
	margin-bottom: 0.5em;
	}

	.edit-recurring-warning .savemode {
	padding-left: 20px;
	}

	.event-update-confirm .savemode {
	padding-left: 30px;
	}

	.event-dialog-message span.ui-icon,
	.event-update-confirm span.ui-icon {
	float: left;
	margin: 0 7px 20px 0;
	}

	.event-dialog-message label,
	.event-update-confirm label {
	min-width: 3em;
	padding-right: 1em;
	}

	.event-update-confirm a.button {
	margin: 0 0.5em 0 0.2em;
	min-width: 5em;
	text-align: center;
	}

	-.event-dialog-message .rsvp-replymode-message {
	- margin-top: 0.8em;
	- margin-bottom: 0.6em;
	-}
	-
	-.event-dialog-message .rsvp-replymode-message .replymode-select {
	- padding-left: 22px;
	-}
	-
	-.event-dialog-message .rsvp-replymode-message label {
	- color: inherit;
	- margin-right: 0.4em;
	- white-space: nowrap;
	- min-width: 4em;
	-}
	-
	-.event-dialog-message .rsvp-replymode-message input.rsvp-replymode {
	- margin-right: 0.4em;
	+.libcal-rsvp-replymode li a {
	+ cursor: default;
	}

	#event-rsvp,
	#edit-attendees-notify {
	margin: 0.6em 0 0.3em 0;
	padding: 0.5em;
	}

	#event-rsvp .itip-reply-controls {
	margin-top: 0.5em;
	}

	#event-rsvp .itip-reply-controls label {
	color: #333;
	}

	#event-rsvp .itip-reply-controls textarea {
	width: 95%;
	}

	#eventedit .edit-attendees-table {
	width: 100%;
	margin-top: 0.5em;
	}

	#eventedit .edit-attendees-table th.role,
	#eventedit .edit-attendees-table td.role {
	width: 9em;
	}

	#eventedit .edit-attendees-table th.availability,
	#eventedit .edit-attendees-table td.availability,
	#eventedit .edit-attendees-table th.confirmstate,
	#eventedit .edit-attendees-table td.confirmstate {
	width: 4em;
	}

	#eventedit .edit-attendees-table th.options,
	#eventedit .edit-attendees-table td.options {
	width: 16px;
	padding: 2px 4px;
	}

	#eventedit .edit-attendees-table th.invite,
	#eventedit .edit-attendees-table td.invite {
	width: 44px;
	padding: 2px;
	}

	#eventedit .edit-attendees-table th.invite label {
	display: inline-block;
	position: relative;
	top: 4px;
	width: 24px;
	height: 18px;
	min-width: 24px;
	padding: 0;
	overflow: hidden;
	text-indent: -5000px;
	white-space: nowrap;
	background: url(images/sendinvitation.png) 1px 0 no-repeat;
	}

	#eventedit .edit-attendees-table tbody tr:last-child td {
	border-bottom: 0;
	}

	#eventedit .edit-attendees-table th.name,
	#eventedit .edit-attendees-table td.name {
	width: auto;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
	}

	#eventedit .edit-attendees-table td.name select {
	width: 100%;
	}

	#eventedit .edit-attendees-table td.name .attendee-name {
	display: block;
	position: relative;
	overflow: hidden;
	text-overflow: ellipsis;
	padding: 5px 7px 6px;
	margin: -5px -7px -6px;
	}

	#eventedit .edit-attendees-table a.deletelink {
	display: inline-block;
	width: 17px;
	height: 17px;
	padding: 0;
	overflow: hidden;
	text-indent: 1000px;
	}

	#eventedit .edit-attendees-table a.expandlink {
	position: absolute;
	top: 4px;
	right: 6px;
	width: 16px;
	height: 16px;
	}

	#edit-attendees-form,
	#edit-resources-form {
	position: relative;
	margin-top: 15px;
	}

	#edit-attendees-form .attendees-invitebox {
	text-align: right;
	margin: 0;
	}

	#edit-attendees-form .attendees-invitebox label {
	padding-right: 3px;
	}

	#edit-resources-form #edit-resource-find {
	position: absolute;
	top: 0;
	right: 0;
	}

	#edit-attendees-form #edit-attendee-schedule {
	position: absolute;
	right: 0;
	top: 0;
	}

	.edit-attendees-table select.edit-attendee-role {
	border: 0;
	padding: 2px;
	background: white;
	width: 100%;
	}

	.availability img.availabilityicon {
	margin: 1px;
	width: 14px;
	height: 14px;
	border-radius: 4px;
	-moz-border-radius: 4px;
	}

	.availability img.availabilityicon.loading {
	background: url(images/loading_blue.gif) center no-repeat;
	}

	#schedule-freebusy-times td.unknown,
	.availability img.availabilityicon.unknown {
	background: #ddd;
	}

	#schedule-freebusy-times td.free,
	.availability img.availabilityicon.free {
	background: #abd640;
	}

	#schedule-freebusy-times td.busy,
	.availability img.availabilityicon.busy {
	background: #e26569;
	}

	#schedule-freebusy-times td.tentative,
	.availability img.availabilityicon.tentative {
	background: #8383fc;
	}

	#schedule-freebusy-times td.out-of-office,
	.availability img.availabilityicon.out-of-office {
	background: #fbaa68;
	}

	#schedule-freebusy-times td.all-busy,
	#schedule-freebusy-times td.all-tentative,
	#schedule-freebusy-times td.all-out-of-office {
	background-image: url(images/freebusy-colors.png);
	background-position: top right;
	background-repeat: no-repeat;
	}

	#schedule-freebusy-times td.all-tentative {
	background-position: right -40px;
	}

	#schedule-freebusy-times td.all-out-of-office {
	background-position: right -80px;
	}

	#edit-attendees-legend {
	margin-top: 3em;
	margin-bottom: 0.5em;
	}

	#edit-attendees-legend .legend {
	margin-right: 2em;
	white-space: nowrap;
	}

	#edit-attendees-legend img.availabilityicon {
	vertical-align: middle;
	}

	.edit-attendees-table tbody td.confirmstate {
	overflow: hidden;
	white-space: nowrap;
	text-indent: -2000%;
	}

	.edit-attendees-table td.confirmstate span {
	display: block;
	width: 20px;
	background: url(images/attendee-status.png) 5px 0 no-repeat;
	}

	.edit-attendees-table td.confirmstate span.needs-action {
	}

	.edit-attendees-table td.confirmstate span.accepted {
	background-position: 5px -20px;
	}

	.edit-attendees-table td.confirmstate span.declined {
	background-position: 5px -40px;
	}

	.edit-attendees-table td.confirmstate span.tentative {
	background-position: 5px -60px;
	}

	.edit-attendees-table td.confirmstate span.delegated {
	background-position: 5px -180px;
	}

	#attendees-freebusy-table {
	width: 100%;
	table-layout: fixed;
	border: 1px solid #bbd3da;
	}

	#attendees-freebusy-table td.attendees {
	width: 18em;
	vertical-align: top;
	overflow: hidden;
	}

	#attendees-freebusy-table td.times {
	width: auto;
	vertical-align: top;
	}

	#attendees-freebusy-table div.scroll {
	position: relative;
	overflow: auto;
	}

	#attendees-freebusy-table h3.boxtitle {
	margin: 0;
	border-color: #ccc;
	}

	.attendees-list .attendee {
	padding: 4px 4px 4px 1px;
	background: url(images/attendee-status.png) 2px -97px no-repeat;
	white-space: nowrap;
	}

	.attendees-list a.attendee-role-toggle {
	display: inline-block;
	width: 16px;
	margin-right: 3px;
	cursor: pointer;
	}

	.attendees-list div.attendee {
	border-top: 1px solid #ccc;
	}

	.attendees-list span.attendee {
	padding-left: 20px;
	margin-right: 2em;
	}

	.attendees-list .organizer {
	background-position: 3px -77px;
	}

	.attendees-list .opt-participant {
	background-position: 2px -117px;
	}

	.attendees-list .non-participant {
	background-position: 2px -137px;
	}

	.attendees-list .chair {
	background-position: 2px -157px;
	}

	.attendees-list .loading {
	background: url(images/loading_blue.gif) 1px 50% no-repeat;
	}

	.attendees-list .total {
	background: none;
	padding-left: 4px;
	font-weight: bold;
	}

	.attendees-list .spacer,
	#schedule-freebusy-times tr.spacer td {
	background: 0;
	font-size: 50%;
	}

	#schedule-freebusy-times {
	border-collapse: collapse;
	width: 100%;
	}

	#schedule-freebusy-times td {
	padding: 4px;
	border: 1px solid #ccc;
	}

	#attendees-freebusy-table div.timesheader,
	#schedule-freebusy-times tr.times td {
	min-width: 30px;
	font-size: 9px;
	padding: 5px 2px 6px 2px;
	text-align: center;
	color: #004658;
	}

	#schedule-freebusy-times tr.times td.allday {
	min-width: 60px;
	}

	#schedule-freebusy-times tr.times td {
	cursor: pointer;
	}

	#schedule-event-time {
	position: absolute;
	border: 2px solid #333;
	background: #777;
	background: rgba(60, 60, 60, 0.6);
	opacity: 0.5;
	border-radius: 4px;
	cursor: move;
	filter: alpha(opacity=40); /* IE8 */
	}

	#eventfreebusy .schedule-options {
	position: relative;
	margin-bottom: 1.5em;
	}

	#eventfreebusy .schedule-buttons {
	position: absolute;
	top: 0.5em;
	right: 0;
	margin-right: 0;
	}

	#eventfreebusy .schedule-find-buttons {
	padding-bottom:0.5em;
	}

	#eventfreebusy .schedule-find-buttons button {
	min-width: 9em;
	text-align: center;
	}

	#eventedit .attendees-commentbox label {
	display: block;
	}

	#eventedit .ui-tabs-panel {
	min-height: 24em;
	}

	#rcmKSearchpane ul li.resource i.icon,
	#rcmKSearchpane ul li.collection i.icon {
	background-image: url(images/autocomplete.png);
	background-position: -1px -2px;
	}

	#rcmKSearchpane ul li.collection i.icon {
	background-position: -1px -26px;
	}

	a.dropdown-link {
	font-size: 11px;
	text-decoration: none;
	}

	a.dropdown-link:after {
	content: ' ▼';
	font-size: 10px;
	color: #666;
	}

	.ui-dialog-buttonset a.dropdown-link {
	position: relative;
	top: 2px;
	margin: 0 1em;
	color: #333;
	}

	#calendarsidebar .ui-datepicker-calendar {
	table-layout: fixed;
	}

	.ui-datepicker-calendar .ui-datepicker-week-col {
	border: 0;
	color: #999;
	font-size: 90%;
	text-align: right;
	padding-right: 6px;
	width: 20px;
	overflow: hidden;
	}

	.ui-autocomplete {
	max-height: 160px;
	overflow-y: auto;
	overflow-x: hidden;
	}

	.ui-autocomplete .ui-menu-item {
	white-space: nowrap;
	}

	* html .ui-autocomplete {
	height: 160px;
	}

	.calendarmain span.spacer {
	padding-left: 3em;
	}

	#agendaoptions {
	position: absolute;
	bottom: 0;
	left: 0;
	right: 0;
	height: auto;
	z-index: 10;
	padding: 4px 5px;
	border: 1px solid #c3c3c3;
	border-top-color: #ddd;
	border-bottom-color: #bbb;
	border-radius: 0 0 4px 4px;
	background: #ebebeb;
	background: -moz-linear-gradient(top, #ebebeb 0%, #c6c6c6 100%);
	background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#ebebeb), color-stop(100%,#c6c6c6));
	background: -o-linear-gradient(top, #ebebeb 0%, #c6c6c6 100%);
	background: -ms-linear-gradient(top, #ebebeb 0%, #c6c6c6 100%);
	background: linear-gradient(top, #ebebeb 0%, #c6c6c6 100%);
	}

	#agendaoptions label {
	text-shadow: 1px 1px #fff;
	padding-right: 0.5em;
	}

	#calendar-kolabform {
	position: relative;
	margin: 0 -8px;
	min-width: 660px;
	min-height: 400px;
	}

	#calendar-kolabform table td.title {
	font-weight: bold;
	white-space: nowrap;
	color: #666;
	padding-right: 10px;
	}

	#resource-selection {
	position: absolute;
	top: 0;
	left: 8px;
	right: 0;
	bottom: 0;
	}

	#resource-selection .scroller {
	top: 34px;
	}

	#resource-dialog-left {
	position: absolute;
	top: 10px;
	left: 0;
	width: 380px;
	bottom: 10px;
	}

	#resource-dialog-right {
	position: absolute;
	top: 10px;
	left: 392px;
	right: 8px;
	bottom: 10px;
	}

	#resource-info {
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 48%;
	}

	#resource-info table {
	margin: 8px;
	width: 97%;
	}

	#resource-info thead td {
	background: none;
	font-weight: bold;
	font-size: 14px;
	}

	#resource-availability {
	position: absolute;
	bottom: 0;
	left: 0;
	right: 0;
	height: 49%;
	}

	#resource-freebusy-calendar {
	position: absolute;
	top: 33px;
	left: -1px;
	right: -1px;
	bottom: -1px;
	}

	#resource-freebusy-calendar .fc-content {
	top: 0;
	}

	#resource-freebusy-calendar .fc-content .fc-event-bg {
	background: 0;
	}

	#resource-freebusy-calendar .fc-event.status-busy,
	#resource-freebusy-calendar .status-busy .fc-event-skin {
	border-color: #e26569;
	background-color: #e26569;
	}

	#resource-freebusy-calendar .fc-event.status-tentative,
	#resource-freebusy-calendar .status-tentative .fc-event-skin {
	border-color: #8383fc;
	background: #8383fc;
	}

	#resource-freebusy-calendar .fc-event.status-outofoffice,
	#resource-freebusy-calendar .status-outofoffice .fc-event-skin {
	border-color: #fbaa68;
	background: #fbaa68;
	}

	#resourcequicksearch {
	padding: 4px;
	background: #c7e3ef;
	}

	#resourcesearchbox {
	width: 100%;
	height: 26px;
	-moz-box-sizing: border-box;
	box-sizing: border-box;
	}

	#resourcequicksearch .iconbutton.searchoptions {
	position: absolute;
	top: 5px;
	left: 6px;
	width: 16px;
	}

	.searchbox .iconbutton.reset {
	position: absolute;
	top: 4px;
	right: 1px;
	}



	/* fullcalendar style overrides */

	.rcube-fc-content {
	overflow: hidden;
	border: 0;
	border-radius: 4px;
	box-shadow: 0 0 2px #999;
	-o-box-shadow: 0 0 2px #999;
	-webkit-box-shadow: 0 0 2px #999;
	-moz-box-shadow: 0 0 2px #999;
	}

	.calendarmain .fc-content {
	position: absolute !important;
	top: 40px;
	left: 0;
	right: 0;
	bottom: 0;
	background: #fff;
	}

	.calendarmain.quickview-active .fc-content {
	background-image: url('images/focusview.png');
	background-position: center;
	background-repeat: no-repeat;
	}

	#fish-eye-view .fc-content {
	top: 2px;
	bottom: 2px;
	}

	#quickview-calendar {
	padding: 8px;
	overflow: hidden;
	}

	.calendarmain .fc-button,
	.calendarmain .fc-button.fc-state-default,
	.calendarmain .fc-button.fc-state-hover {
	background-color: #f5f5f5;
	background-image: -moz-linear-gradient(top, #ffffff, #e6e6e6);
	background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#ffffff), to(#e6e6e6));
	background-image: -webkit-linear-gradient(top, #ffffff, #e6e6e6);
	background-image: -o-linear-gradient(top, #ffffff, #e6e6e6);
	background-image: linear-gradient(to bottom, #ffffff, #e6e6e6);
	background-position: 0 0;
	}

	.calendarmain #calendar .fc-button,
	.calendarmain #calendar .fc-button.fc-state-default,
	.calendarmain #calendar .fc-button.fc-state-hover {
	margin: 0 0 0 0;
	height: 20px;
	line-height: 20px;
	color: #505050;
	text-shadow: 0px 1px 1px #fff;
	border: 1px solid #e6e6e6;
	background: #d8d8d8;
	background: -moz-linear-gradient(top, #d8d8d8 0%, #bababa 100%);
	background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#d8d8d8), color-stop(100%,#bababa));
	background: -o-linear-gradient(top, #d8d8d8 0%, #bababa 100%);
	background: -ms-linear-gradient(top, #d8d8d8 0%, #bababa 100%);
	background: linear-gradient(top, #d8d8d8 0%, #bababa 100%);
	box-shadow: 0 1px 1px 0 #999;
	-o-box-shadow: 0 1px 1px 0 #999;
	-webkit-box-shadow: 0 1px 1px 0 #999;
	-moz-box-shadow: 0 1px 1px 0 #999;
	text-decoration: none;
	}

	.calendarmain #calendar .fc-button.fc-state-disabled {
	color: #999;
	background: #d8d8d8;
	}

	.calendarmain .fc-button.fc-state-active,
	.calendarmain .fc-button.fc-state-down,
	.calendarmain #calendar .fc-button.fc-state-active,
	.calendarmain #calendar .fc-button.fc-state-down {
	color: #333;
	background: #bababa;
	background: -moz-linear-gradient(top, #bababa 0%, #d8d8d8 100%);
	background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#bababa), color-stop(100%,#d8d8d8));
	background: -o-linear-gradient(top, #bababa 0%, #d8d8d8 100%);
	background: -ms-linear-gradient(top, #bababa 0%, #d8d8d8 100%);
	background: linear-gradient(top, #bababa 0%, #d8d8d8 100%);
	}

	.calendarmain #calendar .fc-header .fc-button {
	margin-left: -1px;
	margin-right: 0;
	}

	.calendarmain #calendar .fc-header-left .fc-button {
	display: inline-block;
	margin: 0;
	text-align: center;
	font-size: 10px;
	color: #555;
	min-width: 50px;
	max-width: 75px;
	height: 13px;
	line-height: 1em;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
	margin: -7px 0 0 0;
	padding: 28px 2px 0 2px;
	text-shadow: 0px 1px 1px #EEE;
	border: 0;
	background: url(images/toolbar.png) center 100px no-repeat;
	box-shadow: none;
	-o-box-shadow: none;
	-webkit-box-shadow: none;
	-moz-box-shadow: none;
	outline: none;
	}

	.calendarmain #calendar .fc-header-left .fc-button:focus {
	color: #fff;
	text-shadow: 0px 1px 1px #666;
	background-color: rgba(30,150,192, 0.5);
	border-radius: 3px;
	}

	.calendarmain #calendar .fc-header-left .fc-button.fc-state-active {
	font-weight: bold;
	color: #222;
	text-shadow: none;
	background-color: transparent;
	}

	.calendarmain #calendar .fc-header-left .fc-button-agendaDay {
	background-position: center -120px;
	}

	.calendarmain #calendar .fc-header-left .fc-button-agendaDay.fc-state-active {
	background-position: center -160px;
	}

	.calendarmain #calendar .fc-header-left .fc-button-agendaWeek {
	background-position: center -200px;
	}

	.calendarmain #calendar .fc-header-left .fc-button-agendaWeek.fc-state-active {
	background-position: center -240px;
	}

	.calendarmain #calendar .fc-header-left .fc-button-month {
	background-position: center -280px;
	}

	.calendarmain #calendar .fc-header-left .fc-button-month.fc-state-active {
	background-position: center -320px;
	}

	.calendarmain #calendar .fc-header-left .fc-button-table {
	background-position: center -360px;
	}

	.calendarmain #calendar .fc-header-left .fc-button-table.fc-state-active {
	background-position: center -400px;
	}

	.calendarmain #calendar .fc-header-right {
	padding-right: 252px;
	padding-top: 4px;
	}

	.calendarmain #calendar .fc-header-title {
	padding-top: 5px;
	}

	.fc-event {
	font-size: 1em !important;
	}

	.fc-event-hori.fc-type-freebusy,
	.fc-event-vert.fc-type-freebusy {
	opacity: 0.60;
	/*
	color: #fff !important;
	background: rgba(80,80,80,0.85) !important;
	background: -moz-linear-gradient(top, rgba(80,80,80,0.85) 0%, rgba(48,48,48,0.9) 100%) !important;
	background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(80,80,80,0.85)), color-stop(100%,rgba(48,48,48,0.9))) !important;
	background: -webkit-linear-gradient(top, rgba(80,80,80,0.85) 0%, rgba(48,48,48,0.85) 100%) !important;
	background: -o-linear-gradient(top, rgba(80,80,80,0.85) 0%, rgba(48,48,48,0.85) 100%) !important;
	background: -ms-linear-gradient(top, rgba(80,80,80,0.85) 0%, rgba(48,48,48,0.85) 100%) !important;
	background: linear-gradient(to bottom, rgba(80,80,80,0.85) 0%, rgba(48,48,48,0.85) 100%) !important;
	border-color: #444 !important;
	cursor: default !important;
	*/
	-moz-box-shadow: inset 0px 1px 0 0px #888;
	-webkit-box-shadow: inset 0px 1px 0 0px #888;
	-o-box-shadow: inset 0px 1px 0 0px #888;
	box-shadow: inset 0px 1px 0 0px #888;
	}

	.fc-event-row.fc-type-freebusy td {
	color: #999;
	}

	.fc-event-hori.fc-type-freebusy .fc-event-skin,
	.fc-event-hori.fc-type-freebusy .fc-event-inner,
	.fc-event-vert.fc-type-freebusy .fc-event-skin,
	.fc-event-vert.fc-type-freebusy .fc-event-inner {
	/*
	background-color: transparent !important;
	border-color: #444 !important;
	color: #fff !important;
	text-shadow: 0 1px 1px #000;
	*/
	}

	.fc-event-hori.fc-type-freebusy .fc-event-title,
	.fc-event-vert.fc-type-freebusy .fc-event-title {
	position: absolute;
	top: -5000px;
	}

	.fc-event-vert.fc-invitation-needs-action,
	.fc-event-hori.fc-invitation-needs-action {
	border: 1px dashed #5757c7 !important;
	}

	.fc-event-vert.fc-invitation-tentative,
	.fc-event-hori.fc-invitation-tentative {
	border: 1px dashed #eb8900 !important;
	}

	.fc-event-vert.fc-invitation-declined,
	.fc-event-hori.fc-invitation-declined {
	border: 1px dashed #c00 !important;
	}

	.fc-event-vert.fc-event-ns-other.fc-invitation-declined,
	.fc-event-hori.fc-event-ns-other.fc-invitation-declined {
	opacity: 0.7;
	}

	.fc-event-ns-other.fc-invitation-declined .fc-event-title {
	text-decoration: line-through;
	}

	.fc-event-vert.fc-invitation-tentative .fc-event-head,
	.fc-event-vert.fc-invitation-declined .fc-event-head,
	.fc-event-vert.fc-invitation-needs-action .fc-event-head {
	/* background-color: transparent !important; */
	}

	.fc-event-vert.fc-invitation-tentative .fc-event-bg {
	background: url(data:image/gif;base64,R0lGODlhCAAIAPABAOuJAP///yH/C1hNUCBEYXRhWE1QAT8AIfkEBQAAAQAsAAAAAAgACAAAAg4Egmipx+ZaDPCtVPFNBQA7) 0 0 repeat #fff;
	}

	.fc-event-vert.fc-invitation-needs-action .fc-event-bg {
	background: url(data:image/gif;base64,R0lGODlhCAAIAPABAFdXx////yH/C1hNUCBEYXRhWE1QAT8AIfkEBQAAAQAsAAAAAAgACAAAAg4Egmipx+ZaDPCtVPFNBQA7) 0 0 repeat #fff;
	}

	.fc-event-vert.fc-invitation-declined .fc-event-bg {
	background: url(data:image/gif;base64,R0lGODlhCAAIAPABAMwAAP///yH/C1hNUCBEYXRhWE1QAT8AIfkEBQAAAQAsAAAAAAgACAAAAg4Egmipx+ZaDPCtVPFNBQA7) 0 0 repeat #fff;
	}

	.fc-view-table tr.fc-invitation-tentative td,
	.fc-view-table tr.fc-invitation-declined td,
	.fc-view-table tr.fc-invitation-needs-action td {
	color: #888;
	}

	.fc-view-table tr.fc-invitation-tentative td.fc-event-title,
	.fc-view-table tr.fc-invitation-declined td.fc-event-title,
	.fc-view-table tr.fc-invitation-needs-action td.fc-event-title {
	font-weight: normal;
	}

	#quickview-calendar .fc-view-table tr.fc-invitation-tentative td,
	#quickview-calendar .fc-view-table tr.fc-invitation-declined td,
	#quickview-calendar .fc-view-table tr.fc-invitation-needs-action td {
	color: #333;
	}

	.calendarmain .fc-event:focus {
	outline: 1px solid rgba(71,135,177, 0.4);
	-webkit-box-shadow: 0 0 2px 3px rgba(71,135,177, 0.6);
	-moz-box-shadow: 0 0 2px 3px rgba(71,135,177, 0.6);
	-o-box-shadow: 0 0 2px 3px rgba(71,135,177, 0.6);
	box-shadow: 0 0 2px 3px rgba(71,135,177, 0.6);
	}
	.fc-event-title {
	font-weight: bold;
	}

	.cal-event-status-cancelled .fc-event-title {
	text-decoration: line-through;
	}

	.fc-event-hori .fc-event-title {
	font-weight: normal;
	white-space: nowrap;
	}

	.fc-event-hori .fc-event-time {
	white-space: nowrap;
	font-weight: normal !important;
	font-size: 10px;
	padding-right: 0.6em;
	}

	.fc-grid .fc-event-time {
	font-weight: normal !important;
	padding-right: 0.3em;
	}

	.calendarmain .fc-event-vert .fc-event-inner {
	z-index: 0;
	}

	.fc-event-cateories {
	font-style:italic;
	}

	div.fc-event-location {
	font-size: 90%;
	}

	.fc-more-link {
	color: #999;
	padding-top: 1px;
	cursor: pointer;
	}

	.fc-agenda-slots td div {
	height: 22px;
	}

	.fc-sat, .fc-sun {
	background-color: rgba(198,198,198, 0.08);
	}

	.calendarmain .fc-state-highlight {
	background-color: rgba(233,198,14, 0.12);
	}

	.fc-widget-header {
	background-color: #d6eaf3;
	color: #004458;
	text-shadow: 0px 1px 1px #fff;
	}

	.fc-view thead th.fc-widget-header {
	padding: 8px 0;
	color: #69939e;
	}

	.fc-day-number {
	color: #578da5;
	}

	.fc-icon-alarms,
	.fc-icon-sensitive,
	.fc-icon-recurring {
	display: inline-block;
	width: 11px;
	height: 11px;
	background: url(images/eventicons.png) 0 0 no-repeat;
	margin-left: 3px;
	line-height: 10px;
	}

	.fc-icon-alarms {
	background-position: 0 -13px;
	}

	.fc-icon-sensitive {
	background-position: 0 -25px;
	}

	.fc-list-section .fc-event {
	cursor: pointer;
	}

	.calendarmain .fc-view-table td.fc-list-header {
	color: #004458;
	font-size: 12px;
	}

	.calendarmain .fc-view-table tr.fc-event td {
	border-color: #ddd;
	padding: 4px 7px;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
	}

	.calendarmain .fc-view-table tr.fc-event td.fc-event-handle {
	padding: 5px 0 2px 7px;
	width: 12px;
	}

	.calendarmain .fc-view-table .fc-event-handle .fc-event-skin {
	margin: 0;
	padding: 0;
	display: inline-block;
	width: 10px;
	height: 10px;
	font-size: 6px;
	border-radius: 8px;
	}

	.calendarmain .fc-view-table .fc-event-handle .fc-event-inner {
	display: inline-block;
	width: 10px;
	height: 10px;
	padding: 0;
	margin: -1px;
	font-size: 10px;
	border-radius: 8px;
	border: 1px solid rgba(0, 0, 0, 0.4);
	-webkit-box-shadow: inset 0px 0 1px 1px rgba(0, 0, 0, 0.3);
	-moz-box-shadow: inset 0px 0 1px 1px rgba(0, 0, 0, 0.3);
	box-shadow: inset 0px 0 1px 1px rgba(0, 0, 0, 0.3);
	}

	.calendarmain .fc-view-table col.fc-event-location {
	width: 25%;
	}

	.fc-view-table table.fc-list-smart {
	/* table-layout: auto; */
	}

	.fc-listappend {
	text-align: center;
	margin: 1em 0;
	}

	.fc-listappend .message {
	padding: 0.5em;
	margin-bottom: 0.5em;
	font-size: 150%;
	color: #999;
	}

	.fc-listappend .formlinks a {
	font-size: 12px;
	padding: 0 0.3em;
	}

	.fc-event-temp {
	opacity: 0.4;
	filter: alpha(opacity=40); /* IE8 */
	}

	/* Settings section */

	fieldset #calendarcategories div {
	margin-bottom: 0.3em;
	}

	/* Invitation UI in mail */

	.messagelist tbody .attachment span.ical {
	display: inline-block;
	vertical-align: middle;
	height: 18px;
	width: 20px;
	padding: 0;
	background: url(images/ical-attachment.png) 2px 1px no-repeat;
	}

	ul.toolbarmenu li a.calendarlink span.calendar,
	#attachmentmenu li a.calendarlink span.calendar {
	background-position: 0px -2197px;
	}

	div.calendar-invitebox {
	min-height: 20px;
	margin: 5px 8px;
	padding: 3px 6px 6px 34px;
	border: 1px solid #ffdf0e;
	background: url(images/calendar.png) 6px 5px no-repeat #fef893;
	}

	div.calendar-invitebox td.ititle {
	font-weight: bold;
	padding-right: 0.5em;
	}

	div.calendar-invitebox td {
	padding: 2px;
	}

	div.calendar-invitebox td.label {
	color: #666;
	padding-right: 1em;
	}

	div.calendar-invitebox td.sensitivity {
	color: #d31400;
	font-weight: bold;
	}

	div.calendar-invitebox td.recurrence-id {
	text-transform: uppercase;
	font-style: italic;
	}

	div.calendar-invitebox td em {
	font-weight: bold;
	}

	#event-rsvp .rsvp-buttons,
	div.calendar-invitebox .itip-buttons div {
	margin-top: 0.5em;
	}

	#event-rsvp input.button,
	div.calendar-invitebox input.button {
	font-weight: bold;
	margin-right: 0.5em;
	}

	div.calendar-invitebox input.button.preview {
	margin-left: 1em;
	margin-right: 0;
	}

	div.calendar-invitebox .folder-select {
	font-weight: 10px;
	margin-left: 1em;
	white-space: nowrap;
	}

	div.calendar-invitebox .rsvp-status {
	padding-left: 2px;
	}

	div.calendar-invitebox .rsvp-status.loading {
	color: #666;
	padding: 1px 0 2px 24px;
	background: url(images/loading_blue.gif) top left no-repeat;
	}

	div.calendar-invitebox .rsvp-status.hint {
	color: #666;
	text-shadow: none;
	font-style: italic;
	}

	#event-partstat .changersvp,
	div.calendar-invitebox .rsvp-status.declined,
	div.calendar-invitebox .rsvp-status.tentative,
	div.calendar-invitebox .rsvp-status.accepted,
	div.calendar-invitebox .rsvp-status.delegated,
	div.calendar-invitebox .rsvp-status.needs-action {
	padding: 0 0 1px 22px;
	background: url(images/attendee-status.png) 2px -20px no-repeat;
	}

	#event-partstat .changersvp.declined,
	div.calendar-invitebox .rsvp-status.declined {
	background-position: 2px -40px;
	}

	#event-partstat .changersvp.tentative,
	div.calendar-invitebox .rsvp-status.tentative {
	background-position: 2px -60px;
	}

	#event-partstat .changersvp.delegated,
	div.calendar-invitebox .rsvp-status.delegated {
	background-position: 2px -180px;
	}

	#event-partstat .changersvp.needs-action,
	div.calendar-invitebox .rsvp-status.needs-action {
	background-position: 2px 0;
	}

	div.calendar-invitebox .calendar-agenda-preview {
	display: none;
	border-top: 1px solid #dfdfdf;
	margin-top: 1em;
	padding-top: 0.6em;
	}

	div.calendar-invitebox .calendar-agenda-preview h3.preview-title {
	margin: 0 0 0.5em 0;
	font-size: 12px;
	color: #333;
	}

	div.calendar-invitebox .calendar-agenda-preview .event-row {
	color: #777;
	padding: 2px 0;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
	}

	div.calendar-invitebox .calendar-agenda-preview .event-row.current {
	color: #333;
	font-weight: bold;
	}

	div.calendar-invitebox .calendar-agenda-preview .event-row.no-event {
	font-style: italic;
	}

	div.calendar-invitebox .calendar-agenda-preview .event-date {
	display: inline-block;
	min-width: 8em;
	margin-right: 1em;
	white-space: nowrap;
	}


	/* iTIP attend reply page */

	.calendaritipattend .centerbox {
	width: 40em;
	min-height: 7em;
	margin: 80px auto 0 auto;
	padding: 10px 10px 10px 90px;
	background: url(images/invitation.png) 10px 10px no-repeat #fff;
	}

	.calendaritipattend #message {
	width: 46em;
	margin: 0 auto;
	padding: 10px;
	}

	.calendaritipattend .calendar-invitebox {
	background: none;
	padding-left: 0;
	border: 0;
	margin: 0 0 2em 0;
	}

	.calendaritipattend .calendar-invitebox .rsvp-status {
	margin-top: 2.5em;
	font-size: 110%;
	font-weight: bold;
	}

	.calendaritipattend .calendar-invitebox td.title,
	.calendaritipattend .calendar-invitebox td.ititle {
	font-size: 120%;
	}

	diff --git a/plugins/libcalendaring/lib/libcalendaring_itip.php b/plugins/libcalendaring/lib/libcalendaring_itip.php
	index f56463c3..2eec27c8 100644
	--- a/plugins/libcalendaring/lib/libcalendaring_itip.php
	+++ b/plugins/libcalendaring/lib/libcalendaring_itip.php
	@@ -1,814 +1,810 @@
	<?php

	/**
	* iTIP functions for the calendar-based Roudncube plugins
	*
	* Class providing functionality to manage iTIP invitations
	*
	* @author Thomas Bruederli <bruederli@kolabsys.com>
	*
	* Copyright (C) 2011-2014, Kolab Systems AG <contact@kolabsys.com>
	*
	* This program is free software: you can redistribute it and/or modify
	* it under the terms of the GNU Affero General Public License as
	* published by the Free Software Foundation, either version 3 of the
	* License, or (at your option) any later version.
	*
	* 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 Affero General Public License for more details.
	*
	* You should have received a copy of the GNU Affero General Public License
	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	*/
	class libcalendaring_itip
	{
	protected $rc;
	protected $lib;
	protected $plugin;
	protected $sender;
	protected $domain;
	protected $itip_send = false;
	protected $rsvp_actions = array('accepted','tentative','declined','delegated');
	protected $rsvp_status = array('accepted','tentative','declined','delegated');

	function __construct($plugin, $domain = 'libcalendaring')
	{
	$this->plugin = $plugin;
	$this->rc = rcube::get_instance();
	$this->lib = libcalendaring::get_instance();
	$this->domain = $domain;

	$hook = $this->rc->plugins->exec_hook('calendar_load_itip',
	array('identity' => $this->rc->user->list_emails(true)));
	$this->sender = $hook['identity'];

	$this->plugin->add_hook('message_before_send', array($this, 'before_send_hook'));
	$this->plugin->add_hook('smtp_connect', array($this, 'smtp_connect_hook'));
	}

	public function set_sender_email($email)
	{
	if (!empty($email))
	$this->sender['email'] = $email;
	}

	public function set_rsvp_actions($actions)
	{
	$this->rsvp_actions = (array)$actions;
	$this->rsvp_status = array_merge($this->rsvp_actions, array('delegated'));
	}

	public function set_rsvp_status($status)
	{
	$this->rsvp_status = $status;
	}

	/**
	* Wrapper for rcube_plugin::gettext()
	* Checking for a label in different domains
	*
	* @see rcube::gettext()
	*/
	public function gettext($p)
	{
	$label = is_array($p) ? $p['name'] : $p;
	$domain = $this->domain;
	if (!$this->rc->text_exists($label, $domain)) {
	$domain = 'libcalendaring';
	}
	return $this->rc->gettext($p, $domain);
	}

	/**
	* Send an iTip mail message
	*
	* @param array Event object to send
	* @param string iTip method (REQUEST\|REPLY\|CANCEL)
	* @param array Hash array with recipient data (name, email)
	* @param string Mail subject
	* @param string Mail body text label
	* @param object Mail_mime object with message data
	* @param boolean Request RSVP
	* @return boolean True on success, false on failure
	*/
	public function send_itip_message($event, $method, $recipient, $subject, $bodytext, $message = null, $rsvp = true)
	{
	if (!$this->sender['name'])
	$this->sender['name'] = $this->sender['email'];

	if (!$message) {
	libcalendaring::identify_recurrence_instance($event);
	$message = $this->compose_itip_message($event, $method, $rsvp);
	}

	$mailto = rcube_idn_to_ascii($recipient['email']);

	$headers = $message->headers();
	$headers['To'] = format_email_recipient($mailto, $recipient['name']);
	$headers['Subject'] = $this->gettext(array(
	'name' => $subject,
	'vars' => array(
	'title' => $event['title'],
	'name' => $this->sender['name']
	)
	));

	// compose a list of all event attendees
	$attendees_list = array();
	foreach ((array)$event['attendees'] as $attendee) {
	$attendees_list[] = ($attendee['name'] && $attendee['email']) ?
	$attendee['name'] . ' <' . $attendee['email'] . '>' :
	($attendee['name'] ? $attendee['name'] : $attendee['email']);
	}

	$recurrence_info = '';
	if (!empty($event['recurrence_id'])) {
	$recurrence_info = "\n\n " . $this->gettext($event['thisandfuture'] ? 'itipmessagefutureoccurrence' : 'itipmessagesingleoccurrence') . ' ';
	}
	else if (!empty($event['recurrence'])) {
	$recurrence_info = sprintf("\n%s: %s", $this->gettext('recurring'), $this->lib->recurrence_text($event['recurrence']));
	}

	$mailbody = $this->gettext(array(
	'name' => $bodytext,
	'vars' => array(
	'title' => $event['title'],
	'date' => $this->lib->event_date_text($event, true) . $recurrence_info,
	'attendees' => join(",\n ", $attendees_list),
	'sender' => $this->sender['name'],
	'organizer' => $this->sender['name'],
	)
	));

	// if (!empty($event['comment'])) {
	// $mailbody .= "\n\n" . $this->gettext('itipsendercomment') . $event['comment'];
	// }

	// append links for direct invitation replies
	if ($method == 'REQUEST' && $rsvp && ($token = $this->store_invitation($event, $recipient['email']))) {
	$mailbody .= "\n\n" . $this->gettext(array(
	'name' => 'invitationattendlinks',
	'vars' => array('url' => $this->plugin->get_url(array('action' => 'attend', 't' => $token))),
	));
	}
	else if ($method == 'CANCEL' && $event['cancelled']) {
	$this->cancel_itip_invitation($event);
	}

	$message->headers($headers, true);
	$message->setTXTBody(rcube_mime::format_flowed($mailbody, 79));

	if ($this->rc->config->get('libcalendaring_itip_debug', false)) {
	console('iTip ' . $method, $message->txtHeaders() . "\n\r" . $message->get());
	}

	// finally send the message
	$this->itip_send = true;
	$sent = $this->rc->deliver_message($message, $headers['X-Sender'], $mailto, $smtp_error);
	$this->itip_send = false;

	return $sent;
	}

	/**
	* Plugin hook triggered by rcube::deliver_message() before delivering a message.
	* Here we can set the 'smtp_server' config option to '' in order to use
	* PHP's mail() function for unauthenticated email sending.
	*/
	public function before_send_hook($p)
	{
	if ($this->itip_send && !$this->rc->user->ID && $this->rc->config->get('calendar_itip_smtp_server', null) === '') {
	$this->rc->config->set('smtp_server', '');
	}

	return $p;
	}

	/**
	* Plugin hook to alter SMTP authentication.
	* This is used if iTip messages are to be sent from an unauthenticated session
	*/
	public function smtp_connect_hook($p)
	{
	// replace smtp auth settings if we're not in an authenticated session
	if ($this->itip_send && !$this->rc->user->ID) {
	foreach (array('smtp_server', 'smtp_user', 'smtp_pass') as $prop) {
	$p[$prop] = $this->rc->config->get("calendar_itip_$prop", $p[$prop]);
	}
	}

	return $p;
	}

	/**
	* Helper function to build a Mail_mime object to send an iTip message
	*
	* @param array Event object to send
	* @param string iTip method (REQUEST\|REPLY\|CANCEL)
	* @param boolean Request RSVP
	* @return object Mail_mime object with message data
	*/
	public function compose_itip_message($event, $method, $rsvp = true)
	{
	$from = rcube_idn_to_ascii($this->sender['email']);
	$from_utf = rcube_utils::idn_to_utf8($from);
	$sender = format_email_recipient($from, $this->sender['name']);

	// truncate list attendees down to the recipient of the iTip Reply.
	// constraints for a METHOD:REPLY according to RFC 5546
	if ($method == 'REPLY') {
	$replying_attendee = null;
	$reply_attendees = array();
	foreach ($event['attendees'] as $attendee) {
	if ($attendee['role'] == 'ORGANIZER') {
	$reply_attendees[] = $attendee;
	}
	else if (strcasecmp($attendee['email'], $from) == 0 \|\| strcasecmp($attendee['email'], $from_utf) == 0) {
	$replying_attendee = $attendee;
	if ($attendee['status'] != 'DELEGATED') {
	unset($replying_attendee['rsvp']); // unset the RSVP attribute
	}
	}
	// include attendees relevant for delegation (RFC 5546, Section 4.2.5)
	else if ((!empty($attendee['delegated-to']) &&
	(strcasecmp($attendee['delegated-to'], $from) == 0 \|\| strcasecmp($attendee['delegated-to'], $from_utf) == 0)) \|\|
	(!empty($attendee['delegated-from']) &&
	(strcasecmp($attendee['delegated-from'], $from) == 0 \|\| strcasecmp($attendee['delegated-from'], $from_utf) == 0))) {
	$reply_attendees[] = $attendee;
	}
	}
	if ($replying_attendee) {
	array_unshift($reply_attendees, $replying_attendee);
	$event['attendees'] = $reply_attendees;
	}
	if ($event['recurrence']) {
	unset($event['recurrence']['EXCEPTIONS']);
	}
	}
	// set RSVP for every attendee
	else if ($method == 'REQUEST') {
	foreach ($event['attendees'] as $i => $attendee) {
	if ($attendee['status'] != 'DELEGATED') {
	$event['attendees'][$i]['rsvp']= $rsvp ? true : null;
	}
	}
	}
	else if ($method == 'CANCEL') {
	if ($event['recurrence']) {
	unset($event['recurrence']['EXCEPTIONS']);
	}
	}

	// compose multipart message using PEAR:Mail_Mime
	$message = new Mail_mime("\r\n");
	$message->setParam('text_encoding', 'quoted-printable');
	$message->setParam('head_encoding', 'quoted-printable');
	$message->setParam('head_charset', RCMAIL_CHARSET);
	$message->setParam('text_charset', RCMAIL_CHARSET . ";\r\n format=flowed");
	$message->setContentType('multipart/alternative');

	// compose common headers array
	$headers = array(
	'From' => $sender,
	'Date' => $this->rc->user_date(),
	'Message-ID' => $this->rc->gen_message_id(),
	'X-Sender' => $from,
	);
	if ($agent = $this->rc->config->get('useragent')) {
	$headers['User-Agent'] = $agent;
	}

	$message->headers($headers);

	// attach ics file for this event
	$ical = libcalendaring::get_ical();
	$ics = $ical->export(array($event), $method, false, $method == 'REQUEST' && $this->plugin->driver ? array($this->plugin->driver, 'get_attachment_body') : false);
	$filename = $event['_type'] == 'task' ? 'todo.ics' : 'event.ics';
	$message->addAttachment($ics, 'text/calendar', $filename, false, '8bit', '', RCMAIL_CHARSET . "; method=" . $method);

	return $message;
	}

	/**
	* Forward the given iTip event as delegation to another person
	*
	* @param array Event object to delegate
	* @param mixed Delegatee as string or hash array with keys 'name' and 'mailto'
	* @param boolean The delegator's RSVP flag
	* @return boolean True on success, False on failure
	*/
	public function delegate_to(&$event, $delegate, $rsvp = false)
	{
	if (is_string($delegate)) {
	$delegates = rcube_mime::decode_address_list($delegate, 1, false);
	if (count($delegates) > 0) {
	$delegate = reset($delegates);
	}
	}

	$emails = $this->lib->get_user_emails();
	$me = $this->rc->user->list_emails(true);

	// find/create the delegate attendee
	$delegate_attendee = array(
	'email' => $delegate['mailto'],
	'name' => $delegate['name'],
	'role' => 'REQ-PARTICIPANT',
	);
	$delegate_index = count($event['attendees']);

	foreach ($event['attendees'] as $i => $attendee) {
	// set myself the DELEGATED-TO parameter
	if ($attendee['email'] && in_array(strtolower($attendee['email']), $emails)) {
	$event['attendees'][$i]['delegated-to'] = $delegate['mailto'];
	$event['attendees'][$i]['status'] = 'DELEGATED';
	$event['attendees'][$i]['role'] = 'NON-PARTICIPANT';
	$event['attendees'][$i]['rsvp'] = $rsvp;

	$me['email'] = $attendee['email'];
	$delegate_attendee['role'] = $attendee['role'];
	}
	// the disired delegatee is already listed as an attendee
	else if (stripos($delegate['mailto'], $attendee['email']) !== false && $attendee['role'] != 'ORGANIZER') {
	$delegate_attendee = $attendee;
	$delegate_index = $i;
	break;
	}
	// TODO: remove previous delegatee (i.e. attendee that has DELEGATED-FROM == $me)
	}

	// set/add delegate attendee with RSVP=TRUE and DELEGATED-FROM parameter
	$delegate_attendee['rsvp'] = true;
	$delegate_attendee['status'] = 'NEEDS-ACTION';
	$delegate_attendee['delegated-from'] = $me['email'];
	$event['attendees'][$delegate_index] = $delegate_attendee;

	$this->set_sender_email($me['email']);
	return $this->send_itip_message($event, 'REQUEST', $delegate_attendee, 'itipsubjectdelegatedto', 'itipmailbodydelegatedto');
	}

	/**
	* Handler for calendar/itip-status requests
	*/
	public function get_itip_status($event, $existing = null)
	{
	$action = $event['rsvp'] ? 'rsvp' : '';
	$status = $event['fallback'];
	$latest = false;
	$html = '';

	if (is_numeric($event['changed']))
	$event['changed'] = new DateTime('@'.$event['changed']);

	// check if the given itip object matches the last state
	if ($existing) {
	$latest = (isset($event['sequence']) && $existing['sequence'] == $event['sequence']) \|\|
	(!isset($event['sequence']) && $existing['changed'] && $existing['changed'] >= $event['changed']);
	}

	// determine action for REQUEST
	if ($event['method'] == 'REQUEST') {
	$html = html::div('rsvp-status', $this->gettext('acceptinvitation'));

	if ($existing) {
	$rsvp = $event['rsvp'];
	$emails = $this->lib->get_user_emails();
	foreach ($existing['attendees'] as $attendee) {
	if ($attendee['email'] && in_array(strtolower($attendee['email']), $emails)) {
	$status = strtoupper($attendee['status']);
	break;
	}
	}
	}
	else {
	$rsvp = $event['rsvp'] && $this->rc->config->get('calendar_allow_itip_uninvited', true);
	}

	$status_lc = strtolower($status);

	if ($status_lc == 'unknown' && !$this->rc->config->get('calendar_allow_itip_uninvited', true)) {
	$html = html::div('rsvp-status', $this->gettext('notanattendee'));
	$action = 'import';
	}
	else if (in_array($status_lc, $this->rsvp_status)) {
	$status_text = $this->gettext(($latest ? 'youhave' : 'youhavepreviously') . $status_lc);

	if ($existing && ($existing['sequence'] > $event['sequence'] \|\| (!isset($event['sequence']) && $existing['changed'] && $existing['changed'] > $event['changed']))) {
	$action = ''; // nothing to do here, outdated invitation
	if ($status_lc == 'needs-action')
	$status_text = $this->gettext('outdatedinvitation');
	}
	else if (!$existing && !$rsvp) {
	$action = 'import';
	}
	else if ($latest && $status_lc != 'needs-action') {
	$action = 'update';
	}

	$html = html::div('rsvp-status ' . $status_lc, $status_text);
	}
	}
	// determine action for REPLY
	else if ($event['method'] == 'REPLY') {
	// check whether the sender already is an attendee
	if ($existing) {
	$action = $this->rc->config->get('calendar_allow_itip_uninvited', true) ? 'accept' : '';
	$listed = false;
	foreach ($existing['attendees'] as $attendee) {
	if ($attendee['role'] != 'ORGANIZER' && strcasecmp($attendee['email'], $event['attendee']) == 0) {
	$status_lc = strtolower($status);
	if (in_array($status_lc, $this->rsvp_status)) {
	$html = html::div('rsvp-status ' . $status_lc, $this->gettext(array(
	'name' => 'attendee' . $status_lc,
	'vars' => array(
	'delegatedto' => Q($event['delegated-to'] ?: ($attendee['delegated-to'] ?: '?')),
	)
	)));
	}
	$action = $attendee['status'] == $status \|\| !$latest ? '' : 'update';
	$listed = true;
	break;
	}
	}

	if (!$listed) {
	$html = html::div('rsvp-status', $this->gettext('itipnewattendee'));
	}
	}
	else {
	$html = html::div('rsvp-status hint', $this->gettext('itipobjectnotfound'));
	$action = '';
	}
	}
	else if ($event['method'] == 'CANCEL') {
	if (!$existing) {
	$html = html::div('rsvp-status hint', $this->gettext('itipobjectnotfound'));
	$action = '';
	}
	}

	return array(
	'uid' => $event['uid'],
	'id' => asciiwords($event['uid'], true),
	'existing' => $existing ? true : false,
	'saved' => $existing ? true : false,
	'latest' => $latest,
	'status' => $status,
	'action' => $action,
	'html' => $html,
	);
	}

	/**
	* Build inline UI elements for iTip messages
	*/
	public function mail_itip_inline_ui($event, $method, $mime_id, $task, $message_date = null, $preview_url = null)
	{
	$buttons = array();
	$dom_id = asciiwords($event['uid'], true);
	$rsvp_status = 'unknown';

	// pass some metadata about the event and trigger the asynchronous status check
	$changed = is_object($event['changed']) ? $event['changed'] : $message_date;
	$metadata = array(
	'uid' => $event['uid'],
	'_instance' => $event['_instance'],
	'changed' => $changed ? $changed->format('U') : 0,
	'sequence' => intval($event['sequence']),
	'method' => $method,
	'task' => $task,
	);

	// create buttons to be activated from async request checking existence of this event in local calendars
	$buttons[] = html::div(array('id' => 'loading-'.$dom_id, 'class' => 'rsvp-status loading'), $this->gettext('loading'));

	// on iTip REPLY we have two options:
	if ($method == 'REPLY') {
	$title = $this->gettext('itipreply');

	foreach ($event['attendees'] as $attendee) {
	if (!empty($attendee['email']) && $attendee['role'] != 'ORGANIZER' &&
	(empty($event['_sender']) \|\| ($attendee['email'] == $event['_sender'] \|\| $attendee['email'] == $event['_sender_utf']))) {
	$metadata['attendee'] = $attendee['email'];
	$rsvp_status = strtoupper($attendee['status']);
	if ($attendee['delegated-to'])
	$metadata['delegated-to'] = $attendee['delegated-to'];
	break;
	}
	}

	// 1. update the attendee status on our copy
	$update_button = html::tag('input', array(
	'type' => 'button',
	'class' => 'button',
	'onclick' => "rcube_libcalendaring.add_from_itip_mail('" . JQ($mime_id) . "', '$task')",
	'value' => $this->gettext('updateattendeestatus'),
	));

	// 2. accept or decline a new or delegate attendee
	$accept_buttons = html::tag('input', array(
	'type' => 'button',
	'class' => "button accept",
	'onclick' => "rcube_libcalendaring.add_from_itip_mail('" . JQ($mime_id) . "', '$task')",
	'value' => $this->gettext('acceptattendee'),
	));
	$accept_buttons .= html::tag('input', array(
	'type' => 'button',
	'class' => "button decline",
	'onclick' => "rcube_libcalendaring.decline_attendee_reply('" . JQ($mime_id) . "', '$task')",
	'value' => $this->gettext('declineattendee'),
	));

	$buttons[] = html::div(array('id' => 'update-'.$dom_id, 'style' => 'display:none'), $update_button);
	$buttons[] = html::div(array('id' => 'accept-'.$dom_id, 'style' => 'display:none'), $accept_buttons);
	}
	// when receiving iTip REQUEST messages:
	else if ($method == 'REQUEST') {
	$emails = $this->lib->get_user_emails();
	$title = $event['sequence'] > 0 ? $this->gettext('itipupdate') : $this->gettext('itipinvitation');
	$metadata['rsvp'] = true;
	$metadata['sensitivity'] = $event['sensitivity'];

	if (is_object($event['start'])) {
	$metadata['date'] = $event['start']->format('U');
	}

	// check for X-KOLAB-INVITATIONTYPE property and only show accept/decline buttons
	if (self::get_custom_property($event, 'X-KOLAB-INVITATIONTYPE') == 'CONFIRMATION') {
	$this->rsvp_actions = array('accepted','declined');
	$metadata['nosave'] = true;
	}

	// 1. display RSVP buttons (if the user was invited)
	foreach ($this->rsvp_actions as $method) {
	$rsvp_buttons .= html::tag('input', array(
	'type' => 'button',
	'class' => "button $method",
	'onclick' => "rcube_libcalendaring.add_from_itip_mail('" . JQ($mime_id) . "', '$task', '$method', '$dom_id')",
	'value' => $this->gettext('itip' . $method),
	));
	}

	// add button to open calendar/preview
	if (!empty($preview_url)) {
	$msgref = $this->lib->ical_message->folder . '/' . $this->lib->ical_message->uid . '#' . $mime_id;
	$rsvp_buttons .= html::tag('input', array(
	'type' => 'button',
	'class' => "button preview",
	'onclick' => "rcube_libcalendaring.open_itip_preview('" . JQ($preview_url) . "', '" . JQ($msgref) . "')",
	'value' => $this->gettext('openpreview'),
	));
	}

	// 2. update the local copy with minor changes
	$update_button = html::tag('input', array(
	'type' => 'button',
	'class' => 'button',
	'onclick' => "rcube_libcalendaring.add_from_itip_mail('" . JQ($mime_id) . "', '$task')",
	'value' => $this->gettext('updatemycopy'),
	));

	// 3. Simply import the event without replying
	$import_button = html::tag('input', array(
	'type' => 'button',
	'class' => 'button',
	'onclick' => "rcube_libcalendaring.add_from_itip_mail('" . JQ($mime_id) . "', '$task')",
	'value' => $this->gettext('importtocalendar'),
	));

	// check my status
	foreach ($event['attendees'] as $attendee) {
	if ($attendee['email'] && in_array(strtolower($attendee['email']), $emails)) {
	$metadata['attendee'] = $attendee['email'];
	$metadata['rsvp'] = $attendee['rsvp'] \|\| $attendee['role'] != 'NON-PARTICIPANT';
	$rsvp_status = !empty($attendee['status']) ? strtoupper($attendee['status']) : 'NEEDS-ACTION';
	break;
	}
	}

	// add itip reply message controls
	$rsvp_buttons .= html::div('itip-reply-controls', $this->itip_rsvp_options_ui($dom_id, $metadata['nosave']));

	$buttons[] = html::div(array('id' => 'rsvp-'.$dom_id, 'class' => 'rsvp-buttons', 'style' => 'display:none'), $rsvp_buttons);
	$buttons[] = html::div(array('id' => 'update-'.$dom_id, 'style' => 'display:none'), $update_button);

	// prepare autocompletion for delegation dialog
	if (in_array('delegated', $this->rsvp_actions)) {
	$this->rc->autocomplete_init();
	}
	}
	// for CANCEL messages, we can:
	else if ($method == 'CANCEL') {
	$title = $this->gettext('itipcancellation');
	$event_prop = array_filter(array('uid' => $event['uid'], '_instance' => $event['_instance']));

	// 1. remove the event from our calendar
	$button_remove = html::tag('input', array(
	'type' => 'button',
	'class' => 'button',
	'onclick' => "rcube_libcalendaring.remove_from_itip(" . rcube_output::json_serialize($event_prop) . ", '$task', '" . JQ($event['title']) . "')",
	'value' => $this->gettext('removefromcalendar'),
	));

	// 2. update our copy with status=cancelled
	$button_update = html::tag('input', array(
	'type' => 'button',
	'class' => 'button',
	'onclick' => "rcube_libcalendaring.add_from_itip_mail('" . JQ($mime_id) . "', '$task')",
	'value' => $this->gettext('updatemycopy'),
	));

	$buttons[] = html::div(array('id' => 'rsvp-'.$dom_id, 'style' => 'display:none'), $button_remove . $button_update);

	$rsvp_status = 'CANCELLED';
	$metadata['rsvp'] = true;
	}

	// append generic import button
	if ($import_button) {
	$buttons[] = html::div(array('id' => 'import-'.$dom_id, 'style' => 'display:none'), $import_button);
	}

	// pass some metadata about the event and trigger the asynchronous status check
	$metadata['fallback'] = $rsvp_status;
	$metadata['rsvp'] = intval($metadata['rsvp']);

	$this->rc->output->add_script("rcube_libcalendaring.fetch_itip_object_status(" . json_serialize($metadata) . ")", 'docready');

	// get localized texts from the right domain
	foreach (array('savingdata','deleteobjectconfirm','declinedeleteconfirm','declineattendee',
	'cancel','itipdelegated','declineattendeeconfirm','itipcomment','delegateinvitation',
	'delegateto','delegatersvpme','delegateinvalidaddress') as $label) {
	$this->rc->output->command('add_label', "itip.$label", $this->gettext($label));
	}

	// show event details with buttons
	return $this->itip_object_details_table($event, $title) .
	html::div(array('class' => 'itip-buttons', 'id' => 'itip-buttons-' . asciiwords($metadata['uid'], true)), join('', $buttons));
	}

	/**
	* Render an RSVP UI widget with buttons to respond on iTip invitations
	*/
	function itip_rsvp_buttons($attrib = array(), $actions = null)
	{
	$attrib += array('type' => 'button');

	if (!$actions)
	$actions = $this->rsvp_actions;

	foreach ($actions as $method) {
	$buttons .= html::tag('input', array(
	'type' => $attrib['type'],
	'name' => $attrib['iname'],
	'class' => 'button',
	'rel' => $method,
	'value' => $this->gettext('itip' . $method),
	));
	}

	// add localized texts for the delegation dialog
	if (in_array('delegated', $actions)) {
	foreach (array('itipdelegated','itipcomment','delegateinvitation',
	'delegateto','delegatersvpme','delegateinvalidaddress','cancel') as $label) {
	$this->rc->output->command('add_label', "itip.$label", $this->gettext($label));
	}
	}

	+ foreach (array('all','current','future') as $mode) {
	+ $this->rc->output->command('add_label', "rsvpmode$mode", $this->gettext("rsvpmode$mode"));
	+ }
	+
	$savemode_radio = new html_radiobutton(array('name' => '_rsvpmode', 'class' => 'rsvp-replymode'));

	return html::div($attrib,
	html::div('label', $this->gettext('acceptinvitation')) .
	html::div('rsvp-buttons',
	$buttons .
	- html::div(array('class' => 'rsvp-replymode-message', 'style' => 'display:none'),
	- html::div('message', html::span('ui-icon ui-icon-alert', '') . $this->gettext('rsvprecurringevent')) .
	- html::div('replymode-select',
	- html::label(null, $savemode_radio->show('all', array('value' => 'all')) . $this->gettext('allevents')) .
	- html::label(null, $savemode_radio->show(null, array('value' => 'current')) . $this->gettext('currentevent')) .
	- html::label(null, $savemode_radio->show(null, array('value' => 'future')) . $this->gettext('futurevents'))
	- )
	- ) .
	html::div('itip-reply-controls', $this->itip_rsvp_options_ui($attrib['id']))
	)
	);
	}

	/**
	* Render UI elements to control iTip reply message sending
	*/
	public function itip_rsvp_options_ui($dom_id, $disable = false)
	{
	$itip_sending = $this->rc->config->get('calendar_itip_send_option', 3);

	// itip sending is entirely disabled
	if ($itip_sending === 0) {
	return '';
	}
	// add checkbox to suppress itip reply message
	else if ($itip_sending >= 2) {
	$rsvp_additions = html::label(array('class' => 'noreply-toggle'),
	html::tag('input', array('type' => 'checkbox', 'id' => 'noreply-'.$dom_id, 'value' => 1, 'disabled' => $disable, 'checked' => ($itip_sending & 1) == 0))
	. ' ' . $this->gettext('itipsuppressreply')
	);
	}

	// add input field for reply comment
	$rsvp_additions .= html::a(array('href' => '#toggle', 'class' => 'reply-comment-toggle'), $this->gettext('itipeditresponse'));
	$rsvp_additions .= html::div('itip-reply-comment',
	html::tag('textarea', array('id' => 'reply-comment-'.$dom_id, 'name' => '_comment', 'cols' => 40, 'rows' => 6, 'style' => 'display:none', 'placeholder' => $this->gettext('itipcomment')), '')
	);

	return $rsvp_additions;
	}

	/**
	* Render event/task details in a table
	*/
	function itip_object_details_table($event, $title)
	{
	$table = new html_table(array('cols' => 2, 'border' => 0, 'class' => 'calendar-eventdetails'));
	$table->add('ititle', $title);
	$table->add('title', Q($event['title']));
	if ($event['start'] && $event['end']) {
	$table->add('label', $this->gettext('date'));
	$table->add('date', Q($this->lib->event_date_text($event)));
	}
	else if ($event['due'] && $event['_type'] == 'task') {
	$table->add('label', $this->gettext('date'));
	$table->add('date', Q($this->lib->event_date_text($event)));
	}
	if (!empty($event['recurrence_date'])) {
	$table->add('label', '');
	$table->add('recurrence-id', $this->gettext($event['thisandfuture'] ? 'itipfutureoccurrence' : 'itipsingleoccurrence'));
	}
	else if (!empty($event['recurrence'])) {
	$table->add('label', $this->gettext('recurring'));
	$table->add('recurrence', $this->lib->recurrence_text($event['recurrence']));
	}
	if ($event['location']) {
	$table->add('label', $this->gettext('location'));
	$table->add('location', Q($event['location']));
	}
	if ($event['sensitivity'] && $event['sensitivity'] != 'public') {
	$table->add('label', $this->gettext('sensitivity'));
	$table->add('sensitivity', ucfirst($this->gettext($event['sensitivity'])) . '!');
	}
	if ($event['status'] == 'COMPLETED' \|\| $event['status'] == 'CANCELLED') {
	$table->add('label', $this->gettext('status'));
	$table->add('status', $this->gettext('status-' . strtolower($event['status'])));
	}
	if ($event['comment']) {
	$table->add('label', $this->gettext('comment'));
	$table->add('location', Q($event['comment']));
	}

	return $table->show();
	}


	/**
	* Create iTIP invitation token for later replies via URL
	*
	* @param array Hash array with event properties
	* @param string Attendee email address
	* @return string Invitation token
	*/
	public function store_invitation($event, $attendee)
	{
	// empty stub
	return false;
	}

	/**
	* Mark invitations for the given event as cancelled
	*
	* @param array Hash array with event properties
	*/
	public function cancel_itip_invitation($event)
	{
	// empty stub
	return false;
	}

	/**
	* Utility function to get the value of a custom property
	*/
	public static function get_custom_property($event, $name)
	{
	$ret = false;

	if (is_array($event['x-custom'])) {
	array_walk($event['x-custom'], function($prop, $i) use ($name, &$ret) {
	if (strcasecmp($prop[0], $name) === 0) {
	$ret = $prop[1];
	}
	});
	}

	return $ret;
	}

	}
	diff --git a/plugins/libcalendaring/libcalendaring.js b/plugins/libcalendaring/libcalendaring.js
	index a13ebf7e..cd59f66a 100644
	--- a/plugins/libcalendaring/libcalendaring.js
	+++ b/plugins/libcalendaring/libcalendaring.js
	@@ -1,1158 +1,1191 @@
	/**
	* Basic Javascript utilities for calendar-related plugins
	*
	* @author Thomas Bruederli <bruederli@kolabsys.com>
	*
	* @licstart The following is the entire license notice for the
	* JavaScript code in this page.
	*
	* Copyright (C) 2012-2014, Kolab Systems AG <contact@kolabsys.com>
	*
	* This program is free software: you can redistribute it and/or modify
	* it under the terms of the GNU Affero General Public License as
	* published by the Free Software Foundation, either version 3 of the
	* License, or (at your option) any later version.
	*
	* 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 Affero General Public License for more details.
	*
	* You should have received a copy of the GNU Affero General Public License
	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	*
	* @licend The above is the entire license notice
	* for the JavaScript code in this page.
	*/

	function rcube_libcalendaring(settings)
	{
	// member vars
	this.settings = settings \|\| {};
	this.alarm_ids = [];
	this.alarm_dialog = null;
	this.snooze_popup = null;
	this.dismiss_link = null;
	this.group2expand = {};

	// abort if env isn't set
	if (!settings \|\| !settings.date_format)
	return;

	// private vars
	var me = this;
	var gmt_offset = (new Date().getTimezoneOffset() / -60) - (settings.timezone \|\| 0) - (settings.dst \|\| 0);
	var client_timezone = new Date().getTimezoneOffset();

	// general datepicker settings
	var datepicker_settings = {
	// translate from fullcalendar format to datepicker format
	dateFormat: settings.date_format.replace(/M/g, 'm').replace(/mmmmm/, 'MM').replace(/mmm/, 'M').replace(/dddd/, 'DD').replace(/ddd/, 'D').replace(/yy/g, 'y'),
	firstDay : settings.first_day,
	dayNamesMin: settings.days_short,
	monthNames: settings.months,
	monthNamesShort: settings.months,
	changeMonth: false,
	showOtherMonths: true,
	selectOtherMonths: true
	};


	/**
	* Quote html entities
	*/
	var Q = this.quote_html = function(str)
	{
	return String(str).replace(/</g, '<').replace(/>/g, '>').replace(/"/g, '"');
	};

	/**
	* Create a nice human-readable string for the date/time range
	*/
	this.event_date_text = function(event, voice)
	{
	if (!event.start)
	return '';
	if (!event.end)
	event.end = event.start;

	var fromto, duration = event.end.getTime() / 1000 - event.start.getTime() / 1000,
	until = voice ? ' ' + rcmail.gettext('until','libcalendaring') + ' ' : ' — ';
	if (event.allDay) {
	fromto = this.format_datetime(event.start, 1, voice)
	+ (duration > 86400 \|\| event.start.getDay() != event.end.getDay() ? until + this.format_datetime(event.end, 1, voice) : '');
	}
	else if (duration < 86400 && event.start.getDay() == event.end.getDay()) {
	fromto = this.format_datetime(event.start, 0, voice)
	+ (duration > 0 ? until + this.format_datetime(event.end, 2, voice) : '');
	}
	else {
	fromto = this.format_datetime(event.start, 0, voice)
	+ (duration > 0 ? until + this.format_datetime(event.end, 0, voice) : '');
	}

	return fromto;
	};


	/**
	* From time and date strings to a real date object
	*/
	this.parse_datetime = function(time, date)
	{
	// we use the utility function from datepicker to parse dates
	var date = date ? $.datepicker.parseDate(datepicker_settings.dateFormat, date, datepicker_settings) : new Date();

	var time_arr = time.replace(/\s[ap][.m]/i, '').replace(/0([0-9])/g, '$1').split(/[:.]/);
	if (!isNaN(time_arr[0])) {
	date.setHours(time_arr[0]);
	if (time.match(/p[.m]*/i) && date.getHours() < 12)
	date.setHours(parseInt(time_arr[0]) + 12);
	else if (time.match(/a[.m]*/i) && date.getHours() == 12)
	date.setHours(0);
	}
	if (!isNaN(time_arr[1]))
	date.setMinutes(time_arr[1]);

	return date;
	}

	/**
	* Convert an ISO 8601 formatted date string from the server into a Date object.
	* Timezone information will be ignored, the server already provides dates in user's timezone.
	*/
	this.parseISO8601 = function(s)
	{
	// force d to be on check's YMD, for daylight savings purposes
	var fixDate = function(d, check) {
	if (+d) { // prevent infinite looping on invalid dates
	while (d.getDate() != check.getDate()) {
	d.setTime(+d + (d < check ? 1 : -1) * 3600000);
	}
	}
	}

	// derived from http://delete.me.uk/2005/03/iso8601.html
	var m = s && s.match(/^([0-9]{4})(-([0-9]{2})(-([0-9]{2})([T ]([0-9]{2}):([0-9]{2})(:([0-9]{2})(\.([0-9]+))?)?(Z\|(([-+])([0-9]{2})(:?([0-9]{2}))?))?)?)?)?$/);
	if (!m) {
	return null;
	}

	var date = new Date(m[1], 0, 2),
	check = new Date(m[1], 0, 2, 9, 0);
	if (m[3]) {
	date.setMonth(m[3] - 1);
	check.setMonth(m[3] - 1);
	}
	if (m[5]) {
	date.setDate(m[5]);
	check.setDate(m[5]);
	}
	fixDate(date, check);
	if (m[7]) {
	date.setHours(m[7]);
	}
	if (m[8]) {
	date.setMinutes(m[8]);
	}
	if (m[10]) {
	date.setSeconds(m[10]);
	}
	if (m[12]) {
	date.setMilliseconds(Number("0." + m[12]) * 1000);
	}
	fixDate(date, check);

	return date;
	}

	/**
	* Turn the given date into an ISO 8601 date string understandable by PHPs strtotime()
	*/
	this.date2ISO8601 = function(date)
	{
	var zeropad = function(num) { return (num < 10 ? '0' : '') + num; };

	return date.getFullYear() + '-' + zeropad(date.getMonth()+1) + '-' + zeropad(date.getDate())
	+ 'T' + zeropad(date.getHours()) + ':' + zeropad(date.getMinutes()) + ':' + zeropad(date.getSeconds());
	};

	/**
	* Format the given date object according to user's prefs
	*/
	this.format_datetime = function(date, mode, voice)
	{
	var res = '';
	if (!mode \|\| mode == 1) {
	res += $.datepicker.formatDate(voice ? 'MM d yy' : datepicker_settings.dateFormat, date, datepicker_settings);
	}
	if (!mode) {
	res += voice ? ' ' + rcmail.gettext('at','libcalendaring') + ' ' : ' ';
	}
	if (!mode \|\| mode == 2) {
	res += this.format_time(date, voice);
	}

	return res;
	}

	/**
	* Clone from fullcalendar.js
	*/
	this.format_time = function(date, voice)
	{
	var zeroPad = function(n) { return (n < 10 ? '0' : '') + n; }
	var formatters = {
	s : function(d) { return d.getSeconds() },
	ss : function(d) { return zeroPad(d.getSeconds()) },
	m : function(d) { return d.getMinutes() },
	mm : function(d) { return zeroPad(d.getMinutes()) },
	h : function(d) { return d.getHours() % 12 \|\| 12 },
	hh : function(d) { return zeroPad(d.getHours() % 12 \|\| 12) },
	H : function(d) { return d.getHours() },
	HH : function(d) { return zeroPad(d.getHours()) },
	t : function(d) { return d.getHours() < 12 ? 'a' : 'p' },
	tt : function(d) { return d.getHours() < 12 ? 'am' : 'pm' },
	T : function(d) { return d.getHours() < 12 ? 'A' : 'P' },
	TT : function(d) { return d.getHours() < 12 ? 'AM' : 'PM' }
	};

	var i, i2, c, formatter, res = '',
	format = voice ? settings['time_format'].replace(':',' ').replace('HH','H').replace('hh','h').replace('mm','m').replace('ss','s') : settings['time_format'];
	for (i=0; i < format.length; i++) {
	c = format.charAt(i);
	for (i2=Math.min(i+2, format.length); i2 > i; i2--) {
	if (formatter = formatters[format.substring(i, i2)]) {
	res += formatter(date);
	i = i2 - 1;
	break;
	}
	}
	if (i2 == i) {
	res += c;
	}
	}

	return res;
	}

	/**
	* Convert the given Date object into a unix timestamp respecting browser's and user's timezone settings
	*/
	this.date2unixtime = function(date)
	{
	var dst_offset = (client_timezone - date.getTimezoneOffset()) * 60; // adjust DST offset
	return Math.round(date.getTime()/1000 + gmt_offset * 3600 + dst_offset);
	}

	/**
	* Turn a unix timestamp value into a Date object
	*/
	this.fromunixtime = function(ts)
	{
	ts -= gmt_offset * 3600;
	var date = new Date(ts * 1000),
	dst_offset = (client_timezone - date.getTimezoneOffset()) * 60;
	if (dst_offset) // adjust DST offset
	date.setTime((ts + 3600) * 1000);
	return date;
	}

	/**
	* Simple plaintext to HTML converter, makig URLs clickable
	*/
	this.text2html = function(str, maxlen, maxlines)
	{
	var html = Q(String(str));

	// limit visible text length
	if (maxlen) {
	var morelink = '<span>... <a href="#more" onclick="$(this).parent().hide().next().show();return false" class="morelink">'+rcmail.gettext('showmore','libcalendaring')+'</a></span><span style="display:none">',
	lines = html.split(/\r?\n/),
	words, out = '', len = 0;

	for (var i=0; i < lines.length; i++) {
	len += lines[i].length;
	if (maxlines && i == maxlines - 1) {
	out += lines[i] + '\n' + morelink;
	maxlen = html.length * 2;
	}
	else if (len > maxlen) {
	len = out.length;
	words = lines[i].split(' ');
	for (var j=0; j < words.length; j++) {
	len += words[j].length + 1;
	out += words[j] + ' ';
	if (len > maxlen) {
	out += morelink;
	maxlen = html.length * 2;
	maxlines = 0;
	}
	}
	out += '\n';
	}
	else
	out += lines[i] + '\n';
	}

	if (maxlen > str.length)
	out += '</span>';

	html = out;
	}

	// simple link parser (similar to rcube_string_replacer class in PHP)
	var utf_domain = '[^?&@"\'/\$\$\\s\\r\\t\\n]+\\.([^\x00-\x2f\x3b-\x40\x5b-\x60\x7b-\x7f]{2,}\|xn--[a-z0-9]{2,})';
	var url1 = '.:;,', url2 = 'a-z0-9%=#@+?&/_~\\[\\]-';
	var link_pattern = new RegExp('([hf]t+ps?://)('+utf_domain+'(['+url1+']?['+url2+']+)*)', 'ig');
	var mailto_pattern = new RegExp('([^\\s\\n\$\$;]+@'+utf_domain+')', 'ig');
	var link_replace = function(matches, p1, p2) {
	var title = '', text = p2;
	if (p2 && p2.length > 55) {
	text = p2.substr(0, 45) + '...' + p2.substr(-8);
	title = p1 + p2;
	}
	return '<a href="'+p1+p2+'" class="extlink" target="_blank" title="'+title+'">'+p1+text+'</a>'
	};

	return html
	.replace(link_pattern, link_replace)
	.replace(mailto_pattern, '<a href="mailto:$1">$1</a>')
	.replace(/(mailto:)([^"]+)"/g, '$1$2" onclick="rcmail.command(\'compose\', \'$2\');return false"')
	.replace(/\n/g, "<br/>");
	};

	this.init_alarms_edit = function(prefix, index)
	{
	var edit_type = $(prefix+' select.edit-alarm-type'),
	dom_id = edit_type.attr('id');

	// register events on alarm fields
	edit_type.change(function(){
	$(this).parent().find('span.edit-alarm-values')[(this.selectedIndex>0?'show':'hide')]();
	});
	$(prefix+' select.edit-alarm-offset').change(function(){
	var mode = $(this).val() == '@' ? 'show' : 'hide';
	$(this).parent().find('.edit-alarm-date, .edit-alarm-time')[mode]();
	$(this).parent().find('.edit-alarm-value').prop('disabled', mode == 'show');
	});

	$(prefix+' .edit-alarm-date').removeClass('hasDatepicker').removeAttr('id').datepicker(datepicker_settings);

	$(prefix).on('click', 'a.delete-alarm', function(e){
	if ($(this).closest('.edit-alarm-item').siblings().length > 0) {
	$(this).closest('.edit-alarm-item').remove();
	}
	return false;
	});

	// set a unique id attribute and set label reference accordingly
	if ((index \|\| 0) > 0 && dom_id) {
	dom_id += ':' + (new Date().getTime());
	edit_type.attr('id', dom_id);
	$(prefix+' label:first').attr('for', dom_id);
	}

	$(prefix).on('click', 'a.add-alarm', function(e){
	var i = $(this).closest('.edit-alarm-item').siblings().length + 1;
	var item = $(this).closest('.edit-alarm-item').clone(false)
	.removeClass('first')
	.appendTo(prefix);

	me.init_alarms_edit(prefix + ' .edit-alarm-item:eq(' + i + ')', i);
	$('select.edit-alarm-type, select.edit-alarm-offset', item).change();
	return false;
	});
	}

	this.set_alarms_edit = function(prefix, valarms)
	{
	$(prefix + ' .edit-alarm-item:gt(0)').remove();

	var i, alarm, domnode, val, offset;
	for (i=0; i < valarms.length; i++) {
	alarm = valarms[i];
	if (!alarm.action)
	alarm.action = 'DISPLAY';

	if (i == 0) {
	domnode = $(prefix + ' .edit-alarm-item').eq(0);
	}
	else {
	domnode = $(prefix + ' .edit-alarm-item').eq(0).clone(false).removeClass('first').appendTo(prefix);
	this.init_alarms_edit(prefix + ' .edit-alarm-item:eq(' + i + ')', i);
	}

	$('select.edit-alarm-type', domnode).val(alarm.action);

	if (String(alarm.trigger).match(/@(\d+)/)) {
	var ondate = this.fromunixtime(parseInt(RegExp.$1));
	$('select.edit-alarm-offset', domnode).val('@');
	$('input.edit-alarm-value', domnode).val('');
	$('input.edit-alarm-date', domnode).val(this.format_datetime(ondate, 1));
	$('input.edit-alarm-time', domnode).val(this.format_datetime(ondate, 2));
	}
	else if (String(alarm.trigger).match(/([-+])(\d+)([MHDS])/)) {
	val = RegExp.$2; offset = ''+RegExp.$1+RegExp.$3;
	$('input.edit-alarm-value', domnode).val(val);
	$('select.edit-alarm-offset', domnode).val(offset);
	}
	}

	// set correct visibility by triggering onchange handlers
	$(prefix + ' select.edit-alarm-type, ' + prefix + ' select.edit-alarm-offset').change();
	};

	this.serialize_alarms = function(prefix)
	{
	var valarms = [];

	$(prefix + ' .edit-alarm-item').each(function(i, elem) {
	var val, offset, alarm = { action: $('select.edit-alarm-type', elem).val() };
	if (alarm.action) {
	offset = $('select.edit-alarm-offset', elem).val();
	if (offset == '@') {
	alarm.trigger = '@' + me.date2unixtime(me.parse_datetime($('input.edit-alarm-time', elem).val(), $('input.edit-alarm-date', elem).val()));
	}
	else if (!isNaN((val = parseInt($('input.edit-alarm-value', elem).val()))) && val >= 0) {
	alarm.trigger = offset[0] + val + offset[1];
	}

	valarms.push(alarm);
	}
	});

	return valarms;
	};


	/*** Alarms handling ***/

	/**
	* Display a notification for the given pending alarms
	*/
	this.display_alarms = function(alarms)
	{
	// clear old alert first
	if (this.alarm_dialog)
	this.alarm_dialog.dialog('destroy').remove();

	this.alarm_dialog = $('<div>').attr('id', 'alarm-display');

	var i, actions, adismiss, asnooze, alarm, html, event_ids = [], buttons = {};
	for (i=0; i < alarms.length; i++) {
	alarm = alarms[i];
	alarm.start = this.parseISO8601(alarm.start);
	alarm.end = this.parseISO8601(alarm.end);
	event_ids.push(alarm.id);

	html = '<h3 class="event-title">' + Q(alarm.title) + '</h3>';
	html += '<div class="event-section">' + Q(alarm.location \|\| '') + '</div>';
	html += '<div class="event-section">' + Q(this.event_date_text(alarm)) + '</div>';

	adismiss = $('<a href="#" class="alarm-action-dismiss"></a>').html(rcmail.gettext('dismiss','libcalendaring')).click(function(){
	me.dismiss_link = $(this);
	me.dismiss_alarm(me.dismiss_link.data('id'), 0);
	});
	asnooze = $('<a href="#" class="alarm-action-snooze"></a>').html(rcmail.gettext('snooze','libcalendaring')).click(function(e){
	me.snooze_dropdown($(this), e);
	e.stopPropagation();
	return false;
	});
	actions = $('<div>').addClass('alarm-actions').append(adismiss.data('id', alarm.id)).append(asnooze.data('id', alarm.id));

	$('<div>').addClass('alarm-item').html(html).append(actions).appendTo(this.alarm_dialog);
	}

	buttons[rcmail.gettext('close')] = function() {
	$(this).dialog('close');
	};

	buttons[rcmail.gettext('dismissall','libcalendaring')] = function() {
	// submit dismissed event_ids to server
	me.dismiss_alarm(me.alarm_ids.join(','), 0);
	$(this).dialog('close');
	};

	this.alarm_dialog.appendTo(document.body).dialog({
	modal: false,
	resizable: true,
	closeOnEscape: false,
	dialogClass: 'alarms',
	title: rcmail.gettext('alarmtitle','libcalendaring'),
	buttons: buttons,
	open: function() {
	setTimeout(function() {
	me.alarm_dialog.parent().find('.ui-button:not(.ui-dialog-titlebar-close)').first().focus();
	}, 5);
	},
	close: function() {
	$('#alarm-snooze-dropdown').hide();
	$(this).dialog('destroy').remove();
	me.alarm_dialog = null;
	me.alarm_ids = null;
	},
	drag: function(event, ui) {
	$('#alarm-snooze-dropdown').hide();
	}
	});

	this.alarm_dialog.closest('div[role=dialog]').attr('role', 'alertdialog');

	this.alarm_ids = event_ids;
	};

	/**
	* Show a drop-down menu with a selection of snooze times
	*/
	this.snooze_dropdown = function(link, event)
	{
	if (!this.snooze_popup) {
	this.snooze_popup = $('#alarm-snooze-dropdown');
	// create popup if not found
	if (!this.snooze_popup.length) {
	this.snooze_popup = $('<div>').attr('id', 'alarm-snooze-dropdown').addClass('popupmenu').appendTo(document.body);
	this.snooze_popup.html(rcmail.env.snooze_select)
	}
	$('#alarm-snooze-dropdown a').click(function(e){
	var time = String(this.href).replace(/.+#/, '');
	me.dismiss_alarm($('#alarm-snooze-dropdown').data('id'), time);
	return false;
	});
	}

	// hide visible popup
	if (this.snooze_popup.is(':visible') && this.snooze_popup.data('id') == link.data('id')) {
	rcmail.command('menu-close', 'alarm-snooze-dropdown');
	this.dismiss_link = null;
	}
	else { // open popup below the clicked link
	rcmail.command('menu-open', 'alarm-snooze-dropdown', link.get(0), event);
	this.snooze_popup.data('id', link.data('id'));
	this.dismiss_link = link;
	}
	};

	/**
	* Dismiss or snooze alarms for the given event
	*/
	this.dismiss_alarm = function(id, snooze)
	{
	rcmail.command('menu-close', 'alarm-snooze-dropdown');
	rcmail.http_post('utils/plugin.alarms', { action:'dismiss', data:{ id:id, snooze:snooze } });

	// remove dismissed alarm from list
	if (this.dismiss_link) {
	this.dismiss_link.closest('div.alarm-item').hide();
	var new_ids = jQuery.grep(this.alarm_ids, function(v){ return v != id; });
	if (new_ids.length)
	this.alarm_ids = new_ids;
	else
	this.alarm_dialog.dialog('close');
	}

	this.dismiss_link = null;
	};


	/*** Recurrence form handling ***/

	/**
	* Install event handlers on recurrence form elements
	*/
	this.init_recurrence_edit = function(prefix)
	{
	// toggle recurrence frequency forms
	$('#edit-recurrence-frequency').change(function(e){
	var freq = $(this).val().toLowerCase();
	$('.recurrence-form').hide();
	if (freq) {
	$('#recurrence-form-'+freq).show();
	if (freq != 'rdate')
	$('#recurrence-form-until').show();
	}
	});
	$('#recurrence-form-rdate input.button.add').click(function(e){
	var dt, dv = $('#edit-recurrence-rdate-input').val();
	if (dv && (dt = me.parse_datetime('12:00', dv))) {
	me.add_rdate(dt);
	me.sort_rdates();
	$('#edit-recurrence-rdate-input').val('')
	}
	else {
	$('#edit-recurrence-rdate-input').select();
	}
	});
	$('#edit-recurrence-rdates').on('click', 'a.delete', function(e){
	$(this).closest('li').remove();
	return false;
	});

	$('#edit-recurrence-enddate').datepicker(datepicker_settings).click(function(){ $("#edit-recurrence-repeat-until").prop('checked', true) });
	$('#edit-recurrence-repeat-times').change(function(e){ $('#edit-recurrence-repeat-count').prop('checked', true); });
	$('#edit-recurrence-rdate-input').datepicker(datepicker_settings);
	};

	/**
	* Set recurrence form according to the given event/task record
	*/
	this.set_recurrence_edit = function(rec)
	{
	var recurrence = $('#edit-recurrence-frequency').val(rec.recurrence ? rec.recurrence.FREQ \|\| (rec.recurrence.RDATE ? 'RDATE' : '') : '').change(),
	interval = $('.recurrence-form select.edit-recurrence-interval').val(rec.recurrence ? rec.recurrence.INTERVAL \|\| 1 : 1),
	rrtimes = $('#edit-recurrence-repeat-times').val(rec.recurrence ? rec.recurrence.COUNT \|\| 1 : 1),
	rrenddate = $('#edit-recurrence-enddate').val(rec.recurrence && rec.recurrence.UNTIL ? this.format_datetime(this.parseISO8601(rec.recurrence.UNTIL), 1) : '');
	$('.recurrence-form input.edit-recurrence-until:checked').prop('checked', false);
	$('#edit-recurrence-rdates').html('');

	var weekdays = ['SU','MO','TU','WE','TH','FR','SA'],
	rrepeat_id = '#edit-recurrence-repeat-forever';
	if (rec.recurrence && rec.recurrence.COUNT) rrepeat_id = '#edit-recurrence-repeat-count';
	else if (rec.recurrence && rec.recurrence.UNTIL) rrepeat_id = '#edit-recurrence-repeat-until';
	$(rrepeat_id).prop('checked', true);

	if (rec.recurrence && rec.recurrence.BYDAY && rec.recurrence.FREQ == 'WEEKLY') {
	var wdays = rec.recurrence.BYDAY.split(',');
	$('input.edit-recurrence-weekly-byday').val(wdays);
	}
	if (rec.recurrence && rec.recurrence.BYMONTHDAY) {
	$('input.edit-recurrence-monthly-bymonthday').val(String(rec.recurrence.BYMONTHDAY).split(','));
	$('input.edit-recurrence-monthly-mode').val(['BYMONTHDAY']);
	}
	if (rec.recurrence && rec.recurrence.BYDAY && (rec.recurrence.FREQ == 'MONTHLY' \|\| rec.recurrence.FREQ == 'YEARLY')) {
	var byday, section = rec.recurrence.FREQ.toLowerCase();
	if ((byday = String(rec.recurrence.BYDAY).match(/(-?[1-4])([A-Z]+)/))) {
	$('#edit-recurrence-'+section+'-prefix').val(byday[1]);
	$('#edit-recurrence-'+section+'-byday').val(byday[2]);
	}
	$('input.edit-recurrence-'+section+'-mode').val(['BYDAY']);
	}
	else if (rec.start) {
	$('#edit-recurrence-monthly-byday').val(weekdays[rec.start.getDay()]);
	}
	if (rec.recurrence && rec.recurrence.BYMONTH) {
	$('input.edit-recurrence-yearly-bymonth').val(String(rec.recurrence.BYMONTH).split(','));
	}
	else if (rec.start) {
	$('input.edit-recurrence-yearly-bymonth').val([String(rec.start.getMonth()+1)]);
	}
	if (rec.recurrence && rec.recurrence.RDATE) {
	$.each(rec.recurrence.RDATE, function(i,rdate){
	me.add_rdate(me.parseISO8601(rdate));
	});
	}
	};

	/**
	* Gather recurrence settings from form
	*/
	this.serialize_recurrence = function(timestr)
	{
	var recurrence = '',
	freq = $('#edit-recurrence-frequency').val();

	if (freq != '') {
	recurrence = {
	FREQ: freq,
	INTERVAL: $('#edit-recurrence-interval-'+freq.toLowerCase()).val()
	};

	var until = $('input.edit-recurrence-until:checked').val();
	if (until == 'count')
	recurrence.COUNT = $('#edit-recurrence-repeat-times').val();
	else if (until == 'until')
	recurrence.UNTIL = me.date2ISO8601(me.parse_datetime(timestr \|\| '00:00', $('#edit-recurrence-enddate').val()));

	if (freq == 'WEEKLY') {
	var byday = [];
	$('input.edit-recurrence-weekly-byday:checked').each(function(){ byday.push(this.value); });
	if (byday.length)
	recurrence.BYDAY = byday.join(',');
	}
	else if (freq == 'MONTHLY') {
	var mode = $('input.edit-recurrence-monthly-mode:checked').val(), bymonday = [];
	if (mode == 'BYMONTHDAY') {
	$('input.edit-recurrence-monthly-bymonthday:checked').each(function(){ bymonday.push(this.value); });
	if (bymonday.length)
	recurrence.BYMONTHDAY = bymonday.join(',');
	}
	else
	recurrence.BYDAY = $('#edit-recurrence-monthly-prefix').val() + $('#edit-recurrence-monthly-byday').val();
	}
	else if (freq == 'YEARLY') {
	var byday, bymonth = [];
	$('input.edit-recurrence-yearly-bymonth:checked').each(function(){ bymonth.push(this.value); });
	if (bymonth.length)
	recurrence.BYMONTH = bymonth.join(',');
	if ((byday = $('#edit-recurrence-yearly-byday').val()))
	recurrence.BYDAY = $('#edit-recurrence-yearly-prefix').val() + byday;
	}
	else if (freq == 'RDATE') {
	recurrence = { RDATE:[] };
	// take selected but not yet added date into account
	if ($('#edit-recurrence-rdate-input').val() != '') {
	$('#recurrence-form-rdate input.button.add').click();
	}
	$('#edit-recurrence-rdates li').each(function(i, li){
	recurrence.RDATE.push($(li).attr('data-value'));
	});
	}
	}

	return recurrence;
	};

	// add the given date to the RDATE list
	this.add_rdate = function(date)
	{
	var li = $('<li>')
	.attr('data-value', this.date2ISO8601(date))
	.html('<span>' + Q(this.format_datetime(date, 1)) + '</span>')
	.appendTo('#edit-recurrence-rdates');

	$('<a>').attr('href', '#del')
	.addClass('iconbutton delete')
	.html(rcmail.get_label('delete', 'libcalendaring'))
	.attr('title', rcmail.get_label('delete', 'libcalendaring'))
	.appendTo(li);
	};

	// re-sort the list items by their 'data-value' attribute
	this.sort_rdates = function()
	{
	var mylist = $('#edit-recurrence-rdates'),
	listitems = mylist.children('li').get();
	listitems.sort(function(a, b) {
	var compA = $(a).attr('data-value');
	var compB = $(b).attr('data-value');
	return (compA < compB) ? -1 : (compA > compB) ? 1 : 0;
	})
	$.each(listitems, function(idx, item) { mylist.append(item); });
	};


	/*** Attendee form handling ***/

	// expand the given contact group into individual event/task attendees
	this.expand_attendee_group = function(e, add, remove)
	{
	var id = (e.data ? e.data.email : null) \|\| $(e.target).attr('data-email'),
	role_select = $(e.target).closest('tr').find('select.edit-attendee-role option:selected');

	this.group2expand[id] = { link: e.target, data: $.extend({}, e.data \|\| {}), adder: add, remover: remove }

	// copy group role from the according form element
	if (role_select.length) {
	this.group2expand[id].data.role = role_select.val();
	}

	// register callback handler
	if (!this._expand_attendee_listener) {
	this._expand_attendee_listener = this.expand_attendee_callback;
	rcmail.addEventListener('plugin.expand_attendee_callback', function(result) {
	me._expand_attendee_listener(result);
	});
	}

	rcmail.http_post('libcal/plugin.expand_attendee_group', { id: id, data: e.data \|\| {} }, rcmail.set_busy(true, 'loading'));
	};

	// callback from server to expand an attendee group
	this.expand_attendee_callback = function(result)
	{
	var attendee, id = result.id,
	data = this.group2expand[id],
	row = $(data.link).closest('tr');

	// replace group entry with all members returned by the server
	if (data && data.adder && result.members && result.members.length) {
	for (var i=0; i < result.members.length; i++) {
	attendee = result.members[i];
	attendee.role = data.data.role;
	attendee.cutype = 'INDIVIDUAL';
	attendee.status = 'NEEDS-ACTION';
	data.adder(attendee, null, row);
	}

	if (data.remover) {
	data.remover(data.link, id)
	}
	else {
	row.remove();
	}

	delete this.group2expand[id];
	}
	else {
	rcmail.display_message(result.error \|\| rcmail.gettext('expandattendeegroupnodata','libcalendaring'), 'error');
	}
	};


	// Render message reference links to the given container
	this.render_message_links = function(links, container, edit, plugin)
	{
	var ul = $('<ul>').addClass('attachmentslist');

	$.each(links, function(i, link) {
	if (!link.mailurl)
	return true; // continue

	var li = $('<li>').addClass('link')
	.addClass('message eml')
	.append($('<a>')
	.attr('href', link.mailurl)
	.addClass('messagelink')
	.text(link.subject \|\| link.uri)
	)
	.appendTo(ul);

	// add icon to remove the link
	if (edit) {
	$('<a>')
	.attr('href', '#delete')
	.attr('title', rcmail.gettext('removelink', plugin))
	.attr('data-uri', link.uri)
	.addClass('delete')
	.text(rcmail.gettext('delete'))
	.appendTo(li);
	}
	});

	container.empty().append(ul);
	}
	}

	////// static methods

	/**
	*
	*/
	rcube_libcalendaring.add_from_itip_mail = function(mime_id, task, status, dom_id)
	{
	// ask user to delete the declined event from the local calendar (#1670)
	var del = false;
	if (rcmail.env.rsvp_saved && status == 'declined') {
	del = confirm(rcmail.gettext('itip.declinedeleteconfirm'));
	}

	// open dialog for iTip delegation
	if (status == 'delegated') {
	rcube_libcalendaring.itip_delegate_dialog(function(data) {
	rcmail.http_post(task + '/itip-delegate', {
	_uid: rcmail.env.uid,
	_mbox: rcmail.env.mailbox,
	_part: mime_id,
	_to: data.to,
	_rsvp: data.rsvp ? 1 : 0,
	_comment: data.comment,
	_folder: data.target
	}, rcmail.set_busy(true, 'itip.savingdata'));
	}, $('#rsvp-'+dom_id+' .folder-select'));
	return false;
	}

	var noreply = 0, comment = '';
	if (dom_id) {
	noreply = $('#noreply-'+dom_id+':checked').length ? 1 : 0;
	if (!noreply)
	comment = $('#reply-comment-'+dom_id).val();
	}

	rcmail.http_post(task + '/mailimportitip', {
	_uid: rcmail.env.uid,
	_mbox: rcmail.env.mailbox,
	_part: mime_id,
	_folder: $('#itip-saveto').val(),
	_status: status,
	_del: del?1:0,
	_noreply: noreply,
	_comment: comment
	}, rcmail.set_busy(true, 'itip.savingdata'));

	return false;
	};

	/**
	* Helper function to render the iTip delegation dialog
	* and trigger a callback function when submitted.
	*/
	rcube_libcalendaring.itip_delegate_dialog = function(callback, selector)
	{
	// show dialog for entering the delegatee address and comment
	var html = '<form class="itip-dialog-form" action="javascript:void()">' +
	'<div class="form-section">' +
	'<label for="itip-delegate-to">' + rcmail.gettext('itip.delegateto') + '</label><br/>' +
	'<input type="text" id="itip-delegate-to" class="text" size="40" value="" />' +
	'</div>' +
	'<div class="form-section">' +
	'<label for="itip-delegate-rsvp">' +
	'<input type="checkbox" id="itip-delegate-rsvp" class="checkbox" size="40" value="" />' +
	rcmail.gettext('itip.delegatersvpme') +
	'</label>' +
	'</div>' +
	'<div class="form-section">' +
	'<textarea id="itip-delegate-comment" class="itip-comment" cols="40" rows="8" placeholder="' +
	rcmail.gettext('itip.itipcomment') + '"></textarea>' +
	'</div>' +
	'<div class="form-section">' +
	(selector && selector.length ? selector.html() : '') +
	'</div>' +
	'</form>';

	var dialog, buttons = [];
	buttons.push({
	text: rcmail.gettext('itipdelegated', 'itip'),
	click: function() {
	var doc = window.parent.document,
	delegatee = String($('#itip-delegate-to', doc).val()).replace(/(^\s+)\|(\s+$)/, '');

	if (delegatee != '' && rcube_check_email(delegatee, true)) {
	callback({
	to: delegatee,
	rsvp: $('#itip-delegate-rsvp', doc).prop('checked'),
	comment: $('#itip-delegate-comment', doc).val(),
	target: $('#itip-saveto', doc).val()
	});

	setTimeout(function() { dialog.dialog("close"); }, 500);
	}
	else {
	alert(rcmail.gettext('itip.delegateinvalidaddress'));
	$('#itip-delegate-to', doc).focus();
	}
	}
	});

	buttons.push({
	text: rcmail.gettext('cancel', 'itip'),
	click: function() {
	dialog.dialog('close');
	}
	});

	dialog = rcmail.show_popup_dialog(html, rcmail.gettext('delegateinvitation', 'itip'), buttons, {
	width: 460,
	open: function(event, ui) {
	$(this).parent().find('.ui-button:not(.ui-dialog-titlebar-close)').first().addClass('mainaction');
	$(this).find('#itip-saveto').val('');

	// initialize autocompletion
	var ac_props, rcm = rcmail.is_framed() ? parent.rcmail : rcmail;
	if (rcmail.env.autocomplete_threads > 0) {
	ac_props = {
	threads: rcmail.env.autocomplete_threads,
	sources: rcmail.env.autocomplete_sources
	};
	}
	rcm.init_address_input_events($(this).find('#itip-delegate-to').focus(), ac_props);
	rcm.env.recipients_delimiter = '';
	},
	close: function(event, ui) {
	rcm = rcmail.is_framed() ? parent.rcmail : rcmail;
	rcm.ksearch_blur();
	$(this).remove();
	}
	});

	return dialog;
	};

	+/**
	+ * Show a menu for selecting the RSVP reply mode
	+ */
	+rcube_libcalendaring.itip_rsvp_recurring = function(btn, callback)
	+{
	+ var mnu = $('<ul></ul>').addClass('popupmenu libcal-rsvp-replymode');
	+
	+ $.each(['all','current','future'], function(i, mode) {
	+ $('<li><a>' + rcmail.get_label('rsvpmode'+mode, 'libcalendaring') + '</a>')
	+ .attr('rel', mode)
	+ .appendTo(mnu);
	+ });
	+
	+ var action = btn.attr('rel');
	+
	+ // open the mennu
	+ mnu.menu({
	+ select: function(event, ui) {
	+ callback(action, ui.item.attr('rel'));
	+ }
	+ })
	+ .appendTo(document.body)
	+ .position({ my: 'left top', at: 'left bottom+2', of: btn })
	+ .data('action', action);
	+
	+ setTimeout(function() {
	+ $(document).one('click', function() {
	+ mnu.menu('destroy');
	+ mnu.remove();
	+ });
	+ }, 100);
	+};
	+
	/**
	*
	*/
	rcube_libcalendaring.remove_from_itip = function(event, task, title)
	{
	if (confirm(rcmail.gettext('itip.deleteobjectconfirm').replace('$title', title))) {
	rcmail.http_post(task + '/itip-remove',
	event,
	rcmail.set_busy(true, 'itip.savingdata')
	);
	}
	};

	/**
	*
	*/
	rcube_libcalendaring.decline_attendee_reply = function(mime_id, task)
	{
	// show dialog for entering a comment and send to server
	var html = '<div class="itip-dialog-confirm-text">' + rcmail.gettext('itip.declineattendeeconfirm') + '</div>' +
	'<textarea id="itip-decline-comment" class="itip-comment" cols="40" rows="8"></textarea>';

	var dialog, buttons = [];
	buttons.push({
	text: rcmail.gettext('declineattendee', 'itip'),
	click: function() {
	rcmail.http_post(task + '/itip-decline-reply', {
	_uid: rcmail.env.uid,
	_mbox: rcmail.env.mailbox,
	_part: mime_id,
	_comment: $('#itip-decline-comment', window.parent.document).val()
	}, rcmail.set_busy(true, 'itip.savingdata'));
	dialog.dialog("close");
	}
	});

	buttons.push({
	text: rcmail.gettext('cancel', 'itip'),
	click: function() {
	dialog.dialog('close');
	}
	});

	dialog = rcmail.show_popup_dialog(html, rcmail.gettext('declineattendee', 'itip'), buttons, {
	width: 460,
	open: function() {
	$(this).parent().find('.ui-button:not(.ui-dialog-titlebar-close)').first().addClass('mainaction');
	$('#itip-decline-comment').focus();
	}
	});

	return false;
	};

	/**
	*
	*/
	rcube_libcalendaring.fetch_itip_object_status = function(p)
	{
	rcmail.http_post(p.task + '/itip-status', { data: p });
	};

	/**
	*
	*/
	rcube_libcalendaring.update_itip_object_status = function(p)
	{
	rcmail.env.rsvp_saved = p.saved;
	rcmail.env.itip_existing = p.existing;

	// hide all elements first
	$('#itip-buttons-'+p.id+' > div').hide();
	$('#rsvp-'+p.id+' .folder-select').remove();

	if (p.html) {
	// append/replace rsvp status display
	$('#loading-'+p.id).next('.rsvp-status').remove();
	$('#loading-'+p.id).hide().after(p.html);
	}

	// enable/disable rsvp buttons
	if (p.action == 'rsvp') {
	$('#rsvp-'+p.id+' input.button').prop('disabled', false)
	.filter('.'+String(p.status\|\|'unknown').toLowerCase()).prop('disabled', p.latest);
	}

	// show rsvp/import buttons (with calendar selector)
	$('#'+p.action+'-'+p.id).show().find('input.button').last().after(p.select);

	// show itip box appendix after replacing the given placeholders
	if (p.append && p.append.selector) {
	var elem = $(p.append.selector);
	if (p.append.replacements) {
	$.each(p.append.replacements, function(k, html) {
	elem.html(elem.html().replace(k, html));
	});
	}
	else if (p.append.html) {
	elem.html(p.append.html)
	}
	elem.show();
	}
	};

	/**
	* Callback from server after an iTip message has been processed
	*/
	rcube_libcalendaring.itip_message_processed = function(metadata)
	{
	if (metadata.after_action) {
	setTimeout(function(){ rcube_libcalendaring.itip_after_action(metadata.after_action); }, 1200);
	}
	else {
	rcube_libcalendaring.fetch_itip_object_status(metadata);
	}
	};

	/**
	* After-action on iTip request message. Action types:
	* 0 - no action
	* 1 - move to Trash
	* 2 - delete the message
	* 3 - flag as deleted
	* folder_name - move the message to the specified folder
	*/
	rcube_libcalendaring.itip_after_action = function(action)
	{
	if (!action) {
	return;
	}

	var rc = rcmail.is_framed() ? parent.rcmail : rcmail;

	if (action === 2) {
	rc.permanently_remove_messages();
	}
	else if (action === 3) {
	rc.mark_message('delete');
	}
	else {
	rc.move_messages(action === 1 ? rc.env.trash_mailbox : action);
	}
	};

	/**
	* Open the calendar preview for the current iTip event
	*/
	rcube_libcalendaring.open_itip_preview = function(url, msgref)
	{
	if (!rcmail.env.itip_existing)
	url += '&itip=' + escape(msgref);

	var win = rcmail.open_window(url);
	};


	// extend jQuery
	(function($){
	$.fn.serializeJSON = function(){
	var json = {};
	jQuery.map($(this).serializeArray(), function(n, i) {
	json[n['name']] = n['value'];
	});
	return json;
	};
	})(jQuery);


	/* libcalendaring plugin initialization */
	window.rcmail && rcmail.addEventListener('init', function(evt) {
	if (rcmail.env.libcal_settings) {
	var libcal = new rcube_libcalendaring(rcmail.env.libcal_settings);
	rcmail.addEventListener('plugin.display_alarms', function(alarms){ libcal.display_alarms(alarms); });
	}

	rcmail.addEventListener('plugin.update_itip_object_status', rcube_libcalendaring.update_itip_object_status)
	.addEventListener('plugin.fetch_itip_object_status', rcube_libcalendaring.fetch_itip_object_status)
	.addEventListener('plugin.itip_message_processed', rcube_libcalendaring.itip_message_processed);

	$('.rsvp-buttons').on('click', 'a.reply-comment-toggle', function(e){
	$(this).hide().parent().find('textarea').show().focus();
	return false;
	});

	if (rcmail.env.action == 'get-attachment' && rcmail.gui_objects['attachmentframe']) {
	rcmail.register_command('print-attachment', function() {
	var frame = rcmail.get_frame_window(rcmail.gui_objects['attachmentframe'].id);
	if (frame) frame.print();
	}, true);
	}

	if (rcmail.env.action == 'get-attachment' && rcmail.env.attachment_download_url) {
	rcmail.register_command('download-attachment', function() {
	rcmail.location_href(rcmail.env.attachment_download_url, window);
	}, true);
	}

	});
	diff --git a/plugins/libcalendaring/localization/en_US.inc b/plugins/libcalendaring/localization/en_US.inc
	index 992113ad..ca7d1fd5 100644
	--- a/plugins/libcalendaring/localization/en_US.inc
	+++ b/plugins/libcalendaring/localization/en_US.inc
	@@ -1,163 +1,165 @@
	<?php

	/**
	* Localizations for the Kolab calendaring utilities plugin
	*
	* Copyright (C) 2014, Kolab Systems AG
	*
	* For translation see https://www.transifex.com/projects/p/kolab/resource/libcalendaring/
	*/

	$labels = array();

	// words for spoken dates
	$labels['until'] = 'until';
	$labels['at'] = 'at';

	// alarms related labels
	$labels['alarmemail'] = 'Send Email';
	$labels['alarmdisplay'] = 'Show message';
	$labels['alarmaudio'] = 'Play sound';
	$labels['alarmdisplayoption'] = 'Message';
	$labels['alarmemailoption'] = 'Email';
	$labels['alarmaudiooption'] = 'Sound';
	$labels['alarmat'] = 'at $datetime';
	$labels['trigger@'] = 'on date';
	$labels['trigger-M'] = 'minutes before';
	$labels['trigger-H'] = 'hours before';
	$labels['trigger-D'] = 'days before';
	$labels['trigger+M'] = 'minutes after';
	$labels['trigger+H'] = 'hours after';
	$labels['trigger+D'] = 'days after';
	$labels['triggerattime'] = 'at time';
	$labels['addalarm'] = 'Add alarm';
	$labels['removealarm'] = 'Remove alarm';

	$labels['alarmtitle'] = 'Upcoming events';
	$labels['dismissall'] = 'Dismiss all';
	$labels['dismiss'] = 'Dismiss';
	$labels['snooze'] = 'Snooze';
	$labels['repeatinmin'] = 'Repeat in $min minutes';
	$labels['repeatinhr'] = 'Repeat in 1 hour';
	$labels['repeatinhrs'] = 'Repeat in $hrs hours';
	$labels['repeattomorrow'] = 'Repeat tomorrow';
	$labels['repeatinweek'] = 'Repeat in a week';

	$labels['showmore'] = 'Show more...';

	// recurrence related labels
	$labels['recurring'] = 'Repeats';
	$labels['frequency'] = 'Repeat';
	$labels['never'] = 'never';
	$labels['daily'] = 'daily';
	$labels['weekly'] = 'weekly';
	$labels['monthly'] = 'monthly';
	$labels['yearly'] = 'annually';
	$labels['rdate'] = 'on dates';
	$labels['every'] = 'Every';
	$labels['days'] = 'day(s)';
	$labels['weeks'] = 'week(s)';
	$labels['months'] = 'month(s)';
	$labels['years'] = 'year(s)';
	$labels['bydays'] = 'On';
	$labels['untildate'] = 'the';
	$labels['each'] = 'Each';
	$labels['onevery'] = 'On every';
	$labels['onsamedate'] = 'On the same date';
	$labels['forever'] = 'forever';
	$labels['recurrencend'] = 'until';
	$labels['untilenddate'] = 'until date';
	$labels['forntimes'] = 'for $nr time(s)';
	$labels['first'] = 'first';
	$labels['second'] = 'second';
	$labels['third'] = 'third';
	$labels['fourth'] = 'fourth';
	$labels['last'] = 'last';
	$labels['dayofmonth'] = 'Day of month';
	$labels['addrdate'] = 'Add repeat date';
	$labels['except'] = 'except';

	// itip related labels
	$labels['itipinvitation'] = 'Invitation to';
	$labels['itipupdate'] = 'Update of';
	$labels['itipcancellation'] = 'Cancelled:';
	$labels['itipreply'] = 'Reply to';
	$labels['itipaccepted'] = 'Accept';
	$labels['itiptentative'] = 'Maybe';
	$labels['itipdeclined'] = 'Decline';
	$labels['itipdelegated'] = 'Delegate';
	$labels['itipneeds-action'] = 'Postpone';
	$labels['itipcomment'] = 'Your response';
	$labels['itipeditresponse'] = 'Enter a response text';
	$labels['itipsendercomment'] = 'Sender\'s comment: ';
	$labels['itipsuppressreply'] = 'Do not send a response';

	$labels['itipobjectnotfound'] = 'The object referred by this message was not found in your account.';
	$labels['itipsubjectaccepted'] = '"$title" has been accepted by $name';
	$labels['itipsubjecttentative'] = '"$title" has been tentatively accepted by $name';
	$labels['itipsubjectdeclined'] = '"$title" has been declined by $name';
	$labels['itipsubjectin-process'] = '"$title" is in-process by $name';
	$labels['itipsubjectcompleted'] = '"$title" was completed by $name';
	$labels['itipsubjectcancel'] = 'Your participation in "$title" has been cancelled';
	$labels['itipsubjectdelegated'] = '"$title" has been delegated by $name';
	$labels['itipsubjectdelegatedto'] = '"$title" has been delegated to you by $name';

	$labels['itipnewattendee'] = 'This is a reply from a new participant';
	$labels['updateattendeestatus'] = 'Update the participant\'s status';
	$labels['acceptinvitation'] = 'Do you accept this invitation?';
	$labels['acceptattendee'] = 'Accept participant';
	$labels['declineattendee'] = 'Decline participant';
	$labels['declineattendeeconfirm'] = 'Enter a message to the declined participant (optional):';
	-$labels['rsvprecurringevent'] = 'This is a series of events! Does your response apply to all, this occurrence only or this and future occurrences?';
	+$labels['rsvpmodeall'] = 'The entire series';
	+$labels['rsvpmodecurrent'] = 'This occurrence';
	+$labels['rsvpmodefuture'] = 'This and future occurrences';

	$labels['itipsingleoccurrence'] = 'This is a <em>single occurrence</em> out of a series of events';
	$labels['itipfutureoccurrence'] = 'Refers to <em>this and all future occurrences</em> of a series of events';
	$labels['itipmessagesingleoccurrence'] = 'The message only refers to this single occurrence';
	$labels['itipmessagefutureoccurrence'] = 'The message refers to this and all future occurrences';

	$labels['youhaveaccepted'] = 'You have accepted this invitation';
	$labels['youhavetentative'] = 'You have tentatively accepted this invitation';
	$labels['youhavedeclined'] = 'You have declined this invitation';
	$labels['youhavedelegated'] = 'You have delegated this invitation';
	$labels['youhavein-process'] = 'You are working on this assignment';
	$labels['youhavecompleted'] = 'You have completed this assignment';
	$labels['youhaveneeds-action'] = 'Your response to this invitation is still pending';

	$labels['youhavepreviouslyaccepted'] = 'You have previously accepted this invitation';
	$labels['youhavepreviouslytentative'] = 'You have previously accepted this invitation tentatively';
	$labels['youhavepreviouslydeclined'] = 'You have previously declined this invitation';
	$labels['youhavepreviouslydelegated'] = 'You have previously delegated this invitation';
	$labels['youhavepreviouslyin-process'] = 'You have previously reported to work on this assignment';
	$labels['youhavepreviouslycompleted'] = 'You have previously completed this assignment';
	$labels['youhavepreviouslyneeds-action'] = 'Your response to this invitation is still pending';

	$labels['attendeeaccepted'] = 'Participant has accepted';
	$labels['attendeetentative'] = 'Participant has tentatively accepted';
	$labels['attendeedeclined'] = 'Participant has declined';
	$labels['attendeedelegated'] = 'Participant has delegated to $delegatedto';
	$labels['attendeein-process'] = 'Participant is in-process';
	$labels['attendeecompleted'] = 'Participant has completed';
	$labels['notanattendee'] = 'You\'re not listed as an attendee of this object';
	$labels['outdatedinvitation'] = 'This invitation has been replaced by a newer version';

	$labels['importtocalendar'] = 'Save to my calendar';
	$labels['removefromcalendar'] = 'Remove from my calendar';
	$labels['updatemycopy'] = 'Update my copy';
	$labels['openpreview'] = 'Open Preview';

	$labels['deleteobjectconfirm'] = 'Do you really want to delete this object?';
	$labels['declinedeleteconfirm'] = 'Do you also want to delete this declined object from your account?';

	$labels['delegateinvitation'] = 'Delegate Invitation';
	$labels['delegateto'] = 'Delegate to';
	$labels['delegatersvpme'] = 'Keep me informed about updates of this incidence';
	$labels['delegateinvalidaddress'] = 'Please enter a valid email address for the delegate';

	$labels['savingdata'] = 'Saving data...';

	// attendees labels
	$labels['expandattendeegroup'] = 'Substitute with group members';
	$labels['expandattendeegroupnodata'] = 'Unable to substitute this group. No members found.';
	$labels['expandattendeegrouperror'] = 'Unable to substitute this group. It might contain too many members.';
	$labels['expandattendeegroupsizelimit'] = 'This group contains too many members for substituting.';

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