nomatteus · May 19, 2018 12:05
diff --git a/fullcalendar.1.6.4.js b/fullcalendar.1.6.4.js
 /*!
 * FullCalendar v1.6.4
 * Docs & License: http://arshaw.com/fullcalendar/
 * (c) 2013 Adam Shaw
 */

 /*
 * Use fullcalendar.css for basic styling.
 * For event drag & drop, requires jQuery UI draggable.
 * For event resizing, requires jQuery UI resizable.
 */
 
 (function($, undefined) {


 ;;

 var defaults = {

  // display
 	defaultView: 'month',
 	aspectRatio: 1.35,
 	header: {
 		left: 'title',
 		center: '',
 		right: 'today prev,next'
 	},
 	weekends: true,
 	weekNumbers: false,
 	weekNumberCalculation: 'iso',
 	weekNumberTitle: 'W',
 	
 	// editing
 	//editable: false,
 	//disableDragging: false,
 	//disableResizing: false,
 	
 	allDayDefault: true,
 	ignoreTimezone: true,
 	
 	// event ajax
 	lazyFetching: true,
 	startParam: 'start',
 	endParam: 'end',
 	
 	// time formats
 	titleFormat: {
 		month: 'MMMM yyyy',
 		week: "MMM d[ yyyy]{ '&#8212;'[ MMM] d yyyy}",
 		day: 'dddd, MMM d, yyyy'
 	},
 	columnFormat: {
 		month: 'ddd',
 		week: 'ddd M/d',
 		day: 'dddd M/d'
 	},
 	timeFormat: { // for event elements
 		'': 'h(:mm)t' // default
 	},
 	
 	// locale
 	isRTL: false,
 	firstDay: 0,
 	monthNames: ['January','February','March','April','May','June','July','August','September','October','November','December'],
 	monthNamesShort: ['Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec'],
 	dayNames: ['Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday'],
 	dayNamesShort: ['Sun','Mon','Tue','Wed','Thu','Fri','Sat'],
 	buttonText: {
 		prev: "<span class='fc-text-arrow'>&lsaquo;</span>",
 		next: "<span class='fc-text-arrow'>&rsaquo;</span>",
 		prevYear: "<span class='fc-text-arrow'>&laquo;</span>",
 		nextYear: "<span class='fc-text-arrow'>&raquo;</span>",
 		today: 'today',
 		month: 'month',
 		week: 'week',
 		day: 'day'
 	},
 	
 	// jquery-ui theming
 	theme: false,
 	buttonIcons: {
 		prev: 'circle-triangle-w',
 		next: 'circle-triangle-e'
 	},
 	
 	//selectable: false,
 	unselectAuto: true,
 	
 	dropAccept: '*',
 	
 	handleWindowResize: true
 	
 };

 // right-to-left defaults
 var rtlDefaults = {
 	header: {
 		left: 'next,prev today',
 		center: '',
 		right: 'title'
 	},
 	buttonText: {
 		prev: "<span class='fc-text-arrow'>&rsaquo;</span>",
 		next: "<span class='fc-text-arrow'>&lsaquo;</span>",
 		prevYear: "<span class='fc-text-arrow'>&raquo;</span>",
 		nextYear: "<span class='fc-text-arrow'>&laquo;</span>"
 	},
 	buttonIcons: {
 		prev: 'circle-triangle-e',
 		next: 'circle-triangle-w'
 	}
 };



 ;;

 var fc = $.fullCalendar = { version: "1.6.4" };
 var fcViews = fc.views = {};


 $.fn.fullCalendar = function(options) {


 	// method calling
 	if (typeof options == 'string') {
 		var args = Array.prototype.slice.call(arguments, 1);
 		var res;
 		this.each(function() {
 			var calendar = $.data(this, 'fullCalendar');
 			if (calendar && $.isFunction(calendar[options])) {
 				var r = calendar[options].apply(calendar, args);
 				if (res === undefined) {
 					res = r;
 				}
 				if (options == 'destroy') {
 					$.removeData(this, 'fullCalendar');
 				}
 			}
 		});
 		if (res !== undefined) {
 			return res;
 		}
 		return this;
 	}

 	options = options || {};
 	
 	// would like to have this logic in EventManager, but needs to happen before options are recursively extended
 	var eventSources = options.eventSources || [];
 	delete options.eventSources;
 	if (options.events) {
 		eventSources.push(options.events);
 		delete options.events;
 	}
 	

 	options = $.extend(true, {},
 		defaults,
 		(options.isRTL || options.isRTL===undefined && defaults.isRTL) ? rtlDefaults : {},
 		options
 	);
 	
 	
 	this.each(function(i, _element) {
 		var element = $(_element);
 		var calendar = new Calendar(element, options, eventSources);
 		element.data('fullCalendar', calendar); // TODO: look into memory leak implications
 		calendar.render();
 	});
 	
 	
 	return this;
 	
 };


 // function for adding/overriding defaults
 function setDefaults(d) {
 	$.extend(true, defaults, d);
 }



 ;;

 
 function Calendar(element, options, eventSources) {
 	var t = this;
 	
 	
 	// exports
 	t.options = options;
 	t.render = render;
 	t.destroy = destroy;
 	t.refetchEvents = refetchEvents;
 	t.reportEvents = reportEvents;
 	t.reportEventChange = reportEventChange;
 	t.rerenderEvents = rerenderEvents;
 	t.changeView = changeView;
 	t.select = select;
 	t.unselect = unselect;
 	t.prev = prev;
 	t.next = next;
 	t.prevYear = prevYear;
 	t.nextYear = nextYear;
 	t.today = today;
 	t.gotoDate = gotoDate;
 	t.incrementDate = incrementDate;
 	t.formatDate = function(format, date) { return formatDate(format, date, options) };
 	t.formatDates = function(format, date1, date2) { return formatDates(format, date1, date2, options) };
 	t.getDate = getDate;
 	t.getView = getView;
 	t.option = option;
 	t.trigger = trigger;
 	
 	
 	// imports
 	EventManager.call(t, options, eventSources);
 	var isFetchNeeded = t.isFetchNeeded;
 	var fetchEvents = t.fetchEvents;
 	
 	
 	// locals
 	var _element = element[0];
 	var header;
 	var headerElement;
 	var content;
 	var tm; // for making theme classes
 	var currentView;
 	var elementOuterWidth;
 	var suggestedViewHeight;
 	var resizeUID = 0;
 	var ignoreWindowResize = 0;
 	var date = new Date();
 	var events = [];
 	var _dragElement;
 	
 	
 	
 	/* Main Rendering
 	-----------------------------------------------------------------------------*/
 	
 	
 	setYMD(date, options.year, options.month, options.date);
 	
 	
 	function render(inc) {
 		if (!content) {
 			initialRender();
 		}
 		else if (elementVisible()) {
 			// mainly for the public API
 			calcSize();
 			_renderView(inc);
 		}
 	}
 	
 	
 	function initialRender() {
 		tm = options.theme ? 'ui' : 'fc';
 		element.addClass('fc');
 		if (options.isRTL) {
 			element.addClass('fc-rtl');
 		}
 		else {
 			element.addClass('fc-ltr');
 		}
 		if (options.theme) {
 			element.addClass('ui-widget');
 		}

 		content = $("<div class='fc-content' style='position:relative'/>")
 			.prependTo(element);

 		header = new Header(t, options);
 		headerElement = header.render();
 		if (headerElement) {
 			element.prepend(headerElement);
 		}

 		changeView(options.defaultView);

 		if (options.handleWindowResize) {
 			$(window).resize(windowResize);
 		}

 		// needed for IE in a 0x0 iframe, b/c when it is resized, never triggers a windowResize
 		if (!bodyVisible()) {
 			lateRender();
 		}
 	}
 	
 	
 	// called when we know the calendar couldn't be rendered when it was initialized,
 	// but we think it's ready now
 	function lateRender() {
 		setTimeout(function() { // IE7 needs this so dimensions are calculated correctly
 			if (!currentView.start && bodyVisible()) { // !currentView.start makes sure this never happens more than once
 				renderView();
 			}
 		},0);
 	}
 	
 	
 	function destroy() {

 		if (currentView) {
 			trigger('viewDestroy', currentView, currentView, currentView.element);
 			currentView.triggerEventDestroy();
 		}

 		$(window).unbind('resize', windowResize);

 		header.destroy();
 		content.remove();
 		element.removeClass('fc fc-rtl ui-widget');
 	}
 	
 	
 	function elementVisible() {
 		return element.is(':visible');
 	}
 	
 	
 	function bodyVisible() {
 		return $('body').is(':visible');
 	}
 	
 	
 	
 	/* View Rendering
 	-----------------------------------------------------------------------------*/
 	

 	function changeView(newViewName) {
 		if (!currentView || newViewName != currentView.name) {
 			_changeView(newViewName);
 		}
 	}


 	function _changeView(newViewName) {
 		ignoreWindowResize++;

 		if (currentView) {
 			trigger('viewDestroy', currentView, currentView, currentView.element);
 			unselect();
 			currentView.triggerEventDestroy(); // trigger 'eventDestroy' for each event
 			freezeContentHeight();
 			currentView.element.remove();
 			header.deactivateButton(currentView.name);
 		}

 		header.activateButton(newViewName);

 		currentView = new fcViews[newViewName](
 			$("<div class='fc-view fc-view-" + newViewName + "' style='position:relative'/>")
 				.appendTo(content),
 			t // the calendar object
 		);

 		renderView();
 		unfreezeContentHeight();

 		ignoreWindowResize--;
 	}


 	function renderView(inc) {
 		if (
 			!currentView.start || // never rendered before
 			inc || date < currentView.start || date >= currentView.end // or new date range
 		) {
 			if (elementVisible()) {
 				_renderView(inc);
 			}
 		}
 	}


 	function _renderView(inc) { // assumes elementVisible
 		ignoreWindowResize++;

 		if (currentView.start) { // already been rendered?
 			trigger('viewDestroy', currentView, currentView, currentView.element);
 			unselect();
 			clearEvents();
 		}

 		freezeContentHeight();
 		currentView.render(date, inc || 0); // the view's render method ONLY renders the skeleton, nothing else
 		setSize();
 		unfreezeContentHeight();
 		(currentView.afterRender || noop)();

 		updateTitle();
 		updateTodayButton();

 		trigger('viewRender', currentView, currentView, currentView.element);
 		currentView.trigger('viewDisplay', _element); // deprecated

 		ignoreWindowResize--;

 		getAndRenderEvents();
 	}
 	
 	

 	/* Resizing
 	-----------------------------------------------------------------------------*/
 	
 	
 	function updateSize() {
 		if (elementVisible()) {
 			unselect();
 			clearEvents();
 			calcSize();
 			setSize();
 			renderEvents();
 		}
 	}
 	
 	
 	function calcSize() { // assumes elementVisible
 		if (options.contentHeight) {
 			suggestedViewHeight = options.contentHeight;
 		}
 		else if (options.height) {
 			suggestedViewHeight = options.height - (headerElement ? headerElement.height() : 0) - vsides(content);
 		}
 		else {
 			suggestedViewHeight = Math.round(content.width() / Math.max(options.aspectRatio, .5));
 		}
 	}
 	
 	
 	function setSize() { // assumes elementVisible

 		if (suggestedViewHeight === undefined) {
 			calcSize(); // for first time
 				// NOTE: we don't want to recalculate on every renderView because
 				// it could result in oscillating heights due to scrollbars.
 		}

 		ignoreWindowResize++;
 		currentView.setHeight(suggestedViewHeight);
 		currentView.setWidth(content.width());
 		ignoreWindowResize--;

 		elementOuterWidth = element.outerWidth();
 	}
 	
 	
 	function windowResize() {
 		if (!ignoreWindowResize) {
 			if (currentView.start) { // view has already been rendered
 				var uid = ++resizeUID;
 				setTimeout(function() { // add a delay
 					if (uid == resizeUID && !ignoreWindowResize && elementVisible()) {
 						if (elementOuterWidth != (elementOuterWidth = element.outerWidth())) {
 							ignoreWindowResize++; // in case the windowResize callback changes the height
 							updateSize();
 							currentView.trigger('windowResize', _element);
 							ignoreWindowResize--;
 						}
 					}
 				}, 200);
 			}else{
 				// calendar must have been initialized in a 0x0 iframe that has just been resized
 				lateRender();
 			}
 		}
 	}
 	
 	
 	
 	/* Event Fetching/Rendering
 	-----------------------------------------------------------------------------*/
 	// TODO: going forward, most of this stuff should be directly handled by the view


 	function refetchEvents() { // can be called as an API method
 		clearEvents();
 		fetchAndRenderEvents();
 	}


 	function rerenderEvents(modifiedEventID) { // can be called as an API method
 		clearEvents();
 		renderEvents(modifiedEventID);
 	}


 	function renderEvents(modifiedEventID) { // TODO: remove modifiedEventID hack
 		if (elementVisible()) {
 			currentView.setEventData(events); // for View.js, TODO: unify with renderEvents
 			currentView.renderEvents(events, modifiedEventID); // actually render the DOM elements
 			currentView.trigger('eventAfterAllRender');
 		}
 	}


 	function clearEvents() {
 		currentView.triggerEventDestroy(); // trigger 'eventDestroy' for each event
 		currentView.clearEvents(); // actually remove the DOM elements
 		currentView.clearEventData(); // for View.js, TODO: unify with clearEvents
 	}
 	

 	function getAndRenderEvents() {
 		if (!options.lazyFetching || isFetchNeeded(currentView.visStart, currentView.visEnd)) {
 			fetchAndRenderEvents();
 		}
 		else {
 			renderEvents();
 		}
 	}


 	function fetchAndRenderEvents() {
 		fetchEvents(currentView.visStart, currentView.visEnd);
 			// ... will call reportEvents
 			// ... which will call renderEvents
 	}

 	
 	// called when event data arrives
 	function reportEvents(_events) {
 		events = _events;
 		renderEvents();
 	}


 	// called when a single event's data has been changed
 	function reportEventChange(eventID) {
 		rerenderEvents(eventID);
 	}



 	/* Header Updating
 	-----------------------------------------------------------------------------*/


 	function updateTitle() {
 		header.updateTitle(currentView.title);
 	}


 	function updateTodayButton() {
 		var today = new Date();
 		if (today >= currentView.start && today < currentView.end) {
 			header.disableButton('today');
 		}
 		else {
 			header.enableButton('today');
 		}
 	}
 	


 	/* Selection
 	-----------------------------------------------------------------------------*/
 	

 	function select(start, end, allDay) {
 		currentView.select(start, end, allDay===undefined ? true : allDay);
 	}
 	

 	function unselect() { // safe to be called before renderView
 		if (currentView) {
 			currentView.unselect();
 		}
 	}
 	
 	
 	
 	/* Date
 	-----------------------------------------------------------------------------*/
 	
 	
 	function prev() {
 		renderView(-1);
 	}
 	
 	
 	function next() {
 		renderView(1);
 	}
 	
 	
 	function prevYear() {
 		addYears(date, -1);
 		renderView();
 	}
 	
 	
 	function nextYear() {
 		addYears(date, 1);
 		renderView();
 	}
 	
 	
 	function today() {
 		date = new Date();
 		renderView();
 	}
 	
 	
 	function gotoDate(year, month, dateOfMonth) {
 		if (year instanceof Date) {
 			date = cloneDate(year); // provided 1 argument, a Date
 		}else{
 			setYMD(date, year, month, dateOfMonth);
 		}
 		renderView();
 	}
 	
 	
 	function incrementDate(years, months, days) {
 		if (years !== undefined) {
 			addYears(date, years);
 		}
 		if (months !== undefined) {
 			addMonths(date, months);
 		}
 		if (days !== undefined) {
 			addDays(date, days);
 		}
 		renderView();
 	}
 	
 	
 	function getDate() {
 		return cloneDate(date);
 	}



 	/* Height "Freezing"
 	-----------------------------------------------------------------------------*/


 	function freezeContentHeight() {
 		content.css({
 			width: '100%',
 			height: content.height(),
 			overflow: 'hidden'
 		});
 	}


 	function unfreezeContentHeight() {
 		content.css({
 			width: '',
 			height: '',
 			overflow: ''
 		});
 	}
 	
 	
 	
 	/* Misc
 	-----------------------------------------------------------------------------*/
 	
 	
 	function getView() {
 		return currentView;
 	}
 	
 	
 	function option(name, value) {
 		if (value === undefined) {
 			return options[name];
 		}
 		if (name == 'height' || name == 'contentHeight' || name == 'aspectRatio') {
 			options[name] = value;
 			updateSize();
 		}
 	}
 	
 	
 	function trigger(name, thisObj) {
 		if (options[name]) {
 			return options[name].apply(
 				thisObj || _element,
 				Array.prototype.slice.call(arguments, 2)
 			);
 		}
 	}
 	
 	
 	
 	/* External Dragging
 	------------------------------------------------------------------------*/
 	
 	if (options.droppable) {
 		$(document)
 			.bind('dragstart', function(ev, ui) {
 				var _e = ev.target;
 				var e = $(_e);
 				if (!e.parents('.fc').length) { // not already inside a calendar
 					var accept = options.dropAccept;
 					if ($.isFunction(accept) ? accept.call(_e, e) : e.is(accept)) {
 						_dragElement = _e;
 						currentView.dragStart(_dragElement, ev, ui);
 					}
 				}
 			})
 			.bind('dragstop', function(ev, ui) {
 				if (_dragElement) {
 					currentView.dragStop(_dragElement, ev, ui);
 					_dragElement = null;
 				}
 			});
 	}
 	

 }

 ;;

 function Header(calendar, options) {
 	var t = this;
 	
 	
 	// exports
 	t.render = render;
 	t.destroy = destroy;
 	t.updateTitle = updateTitle;
 	t.activateButton = activateButton;
 	t.deactivateButton = deactivateButton;
 	t.disableButton = disableButton;
 	t.enableButton = enableButton;
 	
 	
 	// locals
 	var element = $([]);
 	var tm;
 	


 	function render() {
 		tm = options.theme ? 'ui' : 'fc';
 		var sections = options.header;
 		if (sections) {
 			element = $("<table class='fc-header' style='width:100%'/>")
 				.append(
 					$("<tr/>")
 						.append(renderSection('left'))
 						.append(renderSection('center'))
 						.append(renderSection('right'))
 				);
 			return element;
 		}
 	}
 	
 	
 	function destroy() {
 		element.remove();
 	}
 	
 	
 	function renderSection(position) {
 		var e = $("<td class='fc-header-" + position + "'/>");
 		var buttonStr = options.header[position];
 		if (buttonStr) {
 			$.each(buttonStr.split(' '), function(i) {
 				if (i > 0) {
 					e.append("<span class='fc-header-space'/>");
 				}
 				var prevButton;
 				$.each(this.split(','), function(j, buttonName) {
 					if (buttonName == 'title') {
 						e.append("<span class='fc-header-title'><h2>&nbsp;</h2></span>");
 						if (prevButton) {
 							prevButton.addClass(tm + '-corner-right');
 						}
 						prevButton = null;
 					}else{
 						var buttonClick;
 						if (calendar[buttonName]) {
 							buttonClick = calendar[buttonName]; // calendar method
 						}
 						else if (fcViews[buttonName]) {
 							buttonClick = function() {
 								button.removeClass(tm + '-state-hover'); // forget why
 								calendar.changeView(buttonName);
 							};
 						}
 						if (buttonClick) {
 							var icon = options.theme ? smartProperty(options.buttonIcons, buttonName) : null; // why are we using smartProperty here?
 							var text = smartProperty(options.buttonText, buttonName); // why are we using smartProperty here?
 							var button = $(
 								"<span class='fc-button fc-button-" + buttonName + " " + tm + "-state-default'>" +
 									(icon ?
 										"<span class='fc-icon-wrap'>" +
 											"<span class='ui-icon ui-icon-" + icon + "'/>" +
 										"</span>" :
 										text
 										) +
 								"</span>"
 								)
 								.click(function() {
 									if (!button.hasClass(tm + '-state-disabled')) {
 										buttonClick();
 									}
 								})
 								.mousedown(function() {
 									button
 										.not('.' + tm + '-state-active')
 										.not('.' + tm + '-state-disabled')
 										.addClass(tm + '-state-down');
 								})
 								.mouseup(function() {
 									button.removeClass(tm + '-state-down');
 								})
 								.hover(
 									function() {
 										button
 											.not('.' + tm + '-state-active')
 											.not('.' + tm + '-state-disabled')
 											.addClass(tm + '-state-hover');
 									},
 									function() {
 										button
 											.removeClass(tm + '-state-hover')
 											.removeClass(tm + '-state-down');
 									}
 								)
 								.appendTo(e);
 							disableTextSelection(button);
 							if (!prevButton) {
 								button.addClass(tm + '-corner-left');
 							}
 							prevButton = button;
 						}
 					}
 				});
 				if (prevButton) {
 					prevButton.addClass(tm + '-corner-right');
 				}
 			});
 		}
 		return e;
 	}
 	
 	
 	function updateTitle(html) {
 		element.find('h2')
 			.html(html);
 	}
 	
 	
 	function activateButton(buttonName) {
 		element.find('span.fc-button-' + buttonName)
 			.addClass(tm + '-state-active');
 	}
 	
 	
 	function deactivateButton(buttonName) {
 		element.find('span.fc-button-' + buttonName)
 			.removeClass(tm + '-state-active');
 	}
 	
 	
 	function disableButton(buttonName) {
 		element.find('span.fc-button-' + buttonName)
 			.addClass(tm + '-state-disabled');
 	}
 	
 	
 	function enableButton(buttonName) {
 		element.find('span.fc-button-' + buttonName)
 			.removeClass(tm + '-state-disabled');
 	}


 }

 ;;

 fc.sourceNormalizers = [];
 fc.sourceFetchers = [];

 var ajaxDefaults = {
 	dataType: 'json',
 	cache: false
 };

 var eventGUID = 1;


 function EventManager(options, _sources) {
 	var t = this;
 	
 	
 	// exports
 	t.isFetchNeeded = isFetchNeeded;
 	t.fetchEvents = fetchEvents;
 	t.addEventSource = addEventSource;
 	t.removeEventSource = removeEventSource;
 	t.updateEvent = updateEvent;
 	t.renderEvent = renderEvent;
 	t.removeEvents = removeEvents;
 	t.clientEvents = clientEvents;
 	t.normalizeEvent = normalizeEvent;
 	
 	
 	// imports
 	var trigger = t.trigger;
 	var getView = t.getView;
 	var reportEvents = t.reportEvents;
 	
 	
 	// locals
 	var stickySource = { events: [] };
 	var sources = [ stickySource ];
 	var rangeStart, rangeEnd;
 	var currentFetchID = 0;
 	var pendingSourceCnt = 0;
 	var loadingLevel = 0;
 	var cache = [];
 	
 	
 	for (var i=0; i<_sources.length; i++) {
 		_addEventSource(_sources[i]);
 	}
 	
 	
 	
 	/* Fetching
 	-----------------------------------------------------------------------------*/
 	
 	
 	function isFetchNeeded(start, end) {
 		return !rangeStart || start < rangeStart || end > rangeEnd;
 	}
 	
 	
 	function fetchEvents(start, end) {
 		rangeStart = start;
 		rangeEnd = end;
 		cache = [];
 		var fetchID = ++currentFetchID;
 		var len = sources.length;
 		pendingSourceCnt = len;
 		for (var i=0; i<len; i++) {
 			fetchEventSource(sources[i], fetchID);
 		}
 	}
 	
 	
 	function fetchEventSource(source, fetchID) {
 		_fetchEventSource(source, function(events) {
 			if (fetchID == currentFetchID) {
 				if (events) {

 					if (options.eventDataTransform) {
 						events = $.map(events, options.eventDataTransform);
 					}
 					if (source.eventDataTransform) {
 						events = $.map(events, source.eventDataTransform);
 					}
 					// TODO: this technique is not ideal for static array event sources.
 					//  For arrays, we'll want to process all events right in the beginning, then never again.
 				
 					for (var i=0; i<events.length; i++) {
 						events[i].source = source;
 						normalizeEvent(events[i]);
 					}
 					cache = cache.concat(events);
 				}
 				pendingSourceCnt--;
 				if (!pendingSourceCnt) {
 					reportEvents(cache);
 				}
 			}
 		});
 	}
 	
 	
 	function _fetchEventSource(source, callback) {
 		var i;
 		var fetchers = fc.sourceFetchers;
 		var res;
 		for (i=0; i<fetchers.length; i++) {
 			res = fetchers[i](source, rangeStart, rangeEnd, callback);
 			if (res === true) {
 				// the fetcher is in charge. made its own async request
 				return;
 			}
 			else if (typeof res == 'object') {
 				// the fetcher returned a new source. process it
 				_fetchEventSource(res, callback);
 				return;
 			}
 		}
 		var events = source.events;
 		if (events) {
 			if ($.isFunction(events)) {
 				pushLoading();
 				events(cloneDate(rangeStart), cloneDate(rangeEnd), function(events) {
 					callback(events);
 					popLoading();
 				});
 			}
 			else if ($.isArray(events)) {
 				callback(events);
 			}
 			else {
 				callback();
 			}
 		}else{
 			var url = source.url;
 			if (url) {
 				var success = source.success;
 				var error = source.error;
 				var complete = source.complete;

 				// retrieve any outbound GET/POST $.ajax data from the options
 				var customData;
 				if ($.isFunction(source.data)) {
 					// supplied as a function that returns a key/value object
 					customData = source.data();
 				}
 				else {
 					// supplied as a straight key/value object
 					customData = source.data;
 				}

 				// use a copy of the custom data so we can modify the parameters
 				// and not affect the passed-in object.
 				var data = $.extend({}, customData || {});

 				var startParam = firstDefined(source.startParam, options.startParam);
 				var endParam = firstDefined(source.endParam, options.endParam);
 				if (startParam) {
 					data[startParam] = Math.round(+rangeStart / 1000);
 				}
 				if (endParam) {
 					data[endParam] = Math.round(+rangeEnd / 1000);
 				}

 				pushLoading();
 				$.ajax($.extend({}, ajaxDefaults, source, {
 					data: data,
 					success: function(events) {
 						events = events || [];
 						var res = applyAll(success, this, arguments);
 						if ($.isArray(res)) {
 							events = res;
 						}
 						callback(events);
 					},
 					error: function() {
 						applyAll(error, this, arguments);
 						callback();
 					},
 					complete: function() {
 						applyAll(complete, this, arguments);
 						popLoading();
 					}
 				}));
 			}else{
 				callback();
 			}
 		}
 	}
 	
 	
 	
 	/* Sources
 	-----------------------------------------------------------------------------*/
 	

 	function addEventSource(source) {
 		source = _addEventSource(source);
 		if (source) {
 			pendingSourceCnt++;
 			fetchEventSource(source, currentFetchID); // will eventually call reportEvents
 		}
 	}
 	
 	
 	function _addEventSource(source) {
 		if ($.isFunction(source) || $.isArray(source)) {
 			source = { events: source };
 		}
 		else if (typeof source == 'string') {
 			source = { url: source };
 		}
 		if (typeof source == 'object') {
 			normalizeSource(source);
 			sources.push(source);
 			return source;
 		}
 	}
 	

 	function removeEventSource(source) {
 		sources = $.grep(sources, function(src) {
 			return !isSourcesEqual(src, source);
 		});
 		// remove all client events from that source
 		cache = $.grep(cache, function(e) {
 			return !isSourcesEqual(e.source, source);
 		});
 		reportEvents(cache);
 	}
 	
 	
 	
 	/* Manipulation
 	-----------------------------------------------------------------------------*/
 	
 	
 	function updateEvent(event) { // update an existing event
 		var i, len = cache.length, e,
 			defaultEventEnd = getView().defaultEventEnd, // getView???
 			startDelta = event.start - event._start,
 			endDelta = event.end ?
 				(event.end - (event._end || defaultEventEnd(event))) // event._end would be null if event.end
 				: 0;                                                      // was null and event was just resized
 		for (i=0; i<len; i++) {
 			e = cache[i];
 			if (e._id == event._id && e != event) {
 				e.start = new Date(+e.start + startDelta);
 				if (event.end) {
 					if (e.end) {
 						e.end = new Date(+e.end + endDelta);
 					}else{
 						e.end = new Date(+defaultEventEnd(e) + endDelta);
 					}
 				}else{
 					e.end = null;
 				}
 				e.title = event.title;
 				e.url = event.url;
 				e.allDay = event.allDay;
 				e.className = event.className;
 				e.editable = event.editable;
 				e.color = event.color;
 				e.backgroundColor = event.backgroundColor;
 				e.borderColor = event.borderColor;
 				e.textColor = event.textColor;
 				normalizeEvent(e);
 			}
 		}
 		normalizeEvent(event);
 		reportEvents(cache);
 	}
 	
 	
 	function renderEvent(event, stick) {
 		normalizeEvent(event);
 		if (!event.source) {
 			if (stick) {
 				stickySource.events.push(event);
 				event.source = stickySource;
 			}
 			cache.push(event);
 		}
 		reportEvents(cache);
 	}
 	
 	
 	function removeEvents(filter) {
 		if (!filter) { // remove all
 			cache = [];
 			// clear all array sources
 			for (var i=0; i<sources.length; i++) {
 				if ($.isArray(sources[i].events)) {
 					sources[i].events = [];
 				}
 			}
 		}else{
 			if (!$.isFunction(filter)) { // an event ID
 				var id = filter + '';
 				filter = function(e) {
 					return e._id == id;
 				};
 			}
 			cache = $.grep(cache, filter, true);
 			// remove events from array sources
 			for (var i=0; i<sources.length; i++) {
 				if ($.isArray(sources[i].events)) {
 					sources[i].events = $.grep(sources[i].events, filter, true);
 				}
 			}
 		}
 		reportEvents(cache);
 	}
 	
 	
 	function clientEvents(filter) {
 		if ($.isFunction(filter)) {
 			return $.grep(cache, filter);
 		}
 		else if (filter) { // an event ID
 			filter += '';
 			return $.grep(cache, function(e) {
 				return e._id == filter;
 			});
 		}
 		return cache; // else, return all
 	}
 	
 	
 	
 	/* Loading State
 	-----------------------------------------------------------------------------*/
 	
 	
 	function pushLoading() {
 		if (!loadingLevel++) {
 			trigger('loading', null, true, getView());
 		}
 	}
 	
 	
 	function popLoading() {
 		if (!--loadingLevel) {
 			trigger('loading', null, false, getView());
 		}
 	}
 	
 	
 	
 	/* Event Normalization
 	-----------------------------------------------------------------------------*/
 	
 	
 	function normalizeEvent(event) {
 		var source = event.source || {};
 		var ignoreTimezone = firstDefined(source.ignoreTimezone, options.ignoreTimezone);
 		event._id = event._id || (event.id === undefined ? '_fc' + eventGUID++ : event.id + '');
 		if (event.date) {
 			if (!event.start) {
 				event.start = event.date;
 			}
 			delete event.date;
 		}
 		event._start = cloneDate(event.start = parseDate(event.start, ignoreTimezone));
 		event.end = parseDate(event.end, ignoreTimezone);
 		if (event.end && event.end <= event.start) {
 			event.end = null;
 		}
 		event._end = event.end ? cloneDate(event.end) : null;
 		if (event.allDay === undefined) {
 			event.allDay = firstDefined(source.allDayDefault, options.allDayDefault);
 		}
 		if (event.className) {
 			if (typeof event.className == 'string') {
 				event.className = event.className.split(/\s+/);
 			}
 		}else{
 			event.className = [];
 		}
 		// TODO: if there is no start date, return false to indicate an invalid event
 	}
 	
 	
 	
 	/* Utils
 	------------------------------------------------------------------------------*/
 	
 	
 	function normalizeSource(source) {
 		if (source.className) {
 			// TODO: repeat code, same code for event classNames
 			if (typeof source.className == 'string') {
 				source.className = source.className.split(/\s+/);
 			}
 		}else{
 			source.className = [];
 		}
 		var normalizers = fc.sourceNormalizers;
 		for (var i=0; i<normalizers.length; i++) {
 			normalizers[i](source);
 		}
 	}
 	
 	
 	function isSourcesEqual(source1, source2) {
 		return source1 && source2 && getSourcePrimitive(source1) == getSourcePrimitive(source2);
 	}
 	
 	
 	function getSourcePrimitive(source) {
 		return ((typeof source == 'object') ? (source.events || source.url) : '') || source;
 	}


 }

 ;;


 fc.addDays = addDays;
 fc.cloneDate = cloneDate;
 fc.parseDate = parseDate;
 fc.parseISO8601 = parseISO8601;
 fc.parseTime = parseTime;
 fc.formatDate = formatDate;
 fc.formatDates = formatDates;



 /* Date Math
 -----------------------------------------------------------------------------*/

 var dayIDs = ['sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat'],
 	DAY_MS = 86400000,
 	HOUR_MS = 3600000,
 	MINUTE_MS = 60000;
 	

 function addYears(d, n, keepTime) {
 	d.setFullYear(d.getFullYear() + n);
 	if (!keepTime) {
 		clearTime(d);
 	}
 	return d;
 }


 function addMonths(d, n, keepTime) { // prevents day overflow/underflow
 	if (+d) { // prevent infinite looping on invalid dates
 		var m = d.getMonth() + n,
 			check = cloneDate(d);
 		check.setDate(1);
 		check.setMonth(m);
 		d.setMonth(m);
 		if (!keepTime) {
 			clearTime(d);
 		}
 		while (d.getMonth() != check.getMonth()) {
 			d.setDate(d.getDate() + (d < check ? 1 : -1));
 		}
 	}
 	return d;
 }


 function addDays(d, n, keepTime) { // deals with daylight savings
 	if (+d) {
 		var dd = d.getDate() + n,
 			check = cloneDate(d);
 		check.setHours(9); // set to middle of day
 		check.setDate(dd);
 		d.setDate(dd);
 		if (!keepTime) {
 			clearTime(d);
 		}
 		fixDate(d, check);
 	}
 	return d;
 }


 function fixDate(d, check) { // force d to be on check's YMD, for daylight savings purposes
 	if (+d) { // prevent infinite looping on invalid dates
 		while (d.getDate() != check.getDate()) {
 			d.setTime(+d + (d < check ? 1 : -1) * HOUR_MS);
 		}
 	}
 }


 function addMinutes(d, n) {
 	d.setMinutes(d.getMinutes() + n);
 	return d;
 }


 function clearTime(d) {
 	d.setHours(0);
 	d.setMinutes(0);
 	d.setSeconds(0); 
 	d.setMilliseconds(0);
 	return d;
 }


 function cloneDate(d, dontKeepTime) {
 	if (dontKeepTime) {
 		return clearTime(new Date(+d));
 	}
 	return new Date(+d);
 }


 function zeroDate() { // returns a Date with time 00:00:00 and dateOfMonth=1
 	var i=0, d;
 	do {
 		d = new Date(1970, i++, 1);
 	} while (d.getHours()); // != 0
 	return d;
 }


 function dayDiff(d1, d2) { // d1 - d2
 	return Math.round((cloneDate(d1, true) - cloneDate(d2, true)) / DAY_MS);
 }


 function setYMD(date, y, m, d) {
 	if (y !== undefined && y != date.getFullYear()) {
 		date.setDate(1);
 		date.setMonth(0);
 		date.setFullYear(y);
 	}
 	if (m !== undefined && m != date.getMonth()) {
 		date.setDate(1);
 		date.setMonth(m);
 	}
 	if (d !== undefined) {
 		date.setDate(d);
 	}
 }



 /* Date Parsing
 -----------------------------------------------------------------------------*/


 function parseDate(s, ignoreTimezone) { // ignoreTimezone defaults to true
 	if (typeof s == 'object') { // already a Date object
 		return s;
 	}
 	if (typeof s == 'number') { // a UNIX timestamp
 		return new Date(s * 1000);
 	}
 	if (typeof s == 'string') {
 		if (s.match(/^\d+(\.\d+)?$/)) { // a UNIX timestamp
 			return new Date(parseFloat(s) * 1000);
 		}
 		if (ignoreTimezone === undefined) {
 			ignoreTimezone = true;
 		}
 		return parseISO8601(s, ignoreTimezone) || (s ? new Date(s) : null);
 	}
 	// TODO: never return invalid dates (like from new Date(<string>)), return null instead
 	return null;
 }


 function parseISO8601(s, ignoreTimezone) { // ignoreTimezone defaults to false
 	// derived from http://delete.me.uk/2005/03/iso8601.html
 	// TODO: for a know glitch/feature, read tests/issue_206_parseDate_dst.html
 	var m = 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, 1);
 	if (ignoreTimezone || !m[13]) {
 		var check = new Date(m[1], 0, 1, 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);
 	}else{
 		date.setUTCFullYear(
 			m[1],
 			m[3] ? m[3] - 1 : 0,
 			m[5] || 1
 		);
 		date.setUTCHours(
 			m[7] || 0,
 			m[8] || 0,
 			m[10] || 0,
 			m[12] ? Number("0." + m[12]) * 1000 : 0
 		);
 		if (m[14]) {
 			var offset = Number(m[16]) * 60 + (m[18] ? Number(m[18]) : 0);
 			offset *= m[15] == '-' ? 1 : -1;
 			date = new Date(+date + (offset * 60 * 1000));
 		}
 	}
 	return date;
 }


 function parseTime(s) { // returns minutes since start of day
 	if (typeof s == 'number') { // an hour
 		return s * 60;
 	}
 	if (typeof s == 'object') { // a Date object
 		return s.getHours() * 60 + s.getMinutes();
 	}
 	var m = s.match(/(\d+)(?::(\d+))?\s*(\w+)?/);
 	if (m) {
 		var h = parseInt(m[1], 10);
 		if (m[3]) {
 			h %= 12;
 			if (m[3].toLowerCase().charAt(0) == 'p') {
 				h += 12;
 			}
 		}
 		return h * 60 + (m[2] ? parseInt(m[2], 10) : 0);
 	}
 }



 /* Date Formatting
 -----------------------------------------------------------------------------*/
 // TODO: use same function formatDate(date, [date2], format, [options])


 function formatDate(date, format, options) {
 	return formatDates(date, null, format, options);
 }


 function formatDates(date1, date2, format, options) {
 	options = options || defaults;
 	var date = date1,
 		otherDate = date2,
 		i, len = format.length, c,
 		i2, formatter,
 		res = '';
 	for (i=0; i<len; i++) {
 		c = format.charAt(i);
 		if (c == "'") {
 			for (i2=i+1; i2<len; i2++) {
 				if (format.charAt(i2) == "'") {
 					if (date) {
 						if (i2 == i+1) {
 							res += "'";
 						}else{
 							res += format.substring(i+1, i2);
 						}
 						i = i2;
 					}
 					break;
 				}
 			}
 		}
 		else if (c == '(') {
 			for (i2=i+1; i2<len; i2++) {
 				if (format.charAt(i2) == ')') {
 					var subres = formatDate(date, format.substring(i+1, i2), options);
 					if (parseInt(subres.replace(/\D/, ''), 10)) {
 						res += subres;
 					}
 					i = i2;
 					break;
 				}
 			}
 		}
 		else if (c == '[') {
 			for (i2=i+1; i2<len; i2++) {
 				if (format.charAt(i2) == ']') {
 					var subformat = format.substring(i+1, i2);
 					var subres = formatDate(date, subformat, options);
 					if (subres != formatDate(otherDate, subformat, options)) {
 						res += subres;
 					}
 					i = i2;
 					break;
 				}
 			}
 		}
 		else if (c == '{') {
 			date = date2;
 			otherDate = date1;
 		}
 		else if (c == '}') {
 			date = date1;
 			otherDate = date2;
 		}
 		else {
 			for (i2=len; i2>i; i2--) {
 				if (formatter = dateFormatters[format.substring(i, i2)]) {
 					if (date) {
 						res += formatter(date, options);
 					}
 					i = i2 - 1;
 					break;
 				}
 			}
 			if (i2 == i) {
 				if (date) {
 					res += c;
 				}
 			}
 		}
 	}
 	return res;
 };


 var dateFormatters = {
 	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()) },
 	d	: function(d)	{ return d.getDate() },
 	dd	: function(d)	{ return zeroPad(d.getDate()) },
 	ddd	: function(d,o)	{ return o.dayNamesShort[d.getDay()] },
 	dddd: function(d,o)	{ return o.dayNames[d.getDay()] },
 	M	: function(d)	{ return d.getMonth() + 1 },
 	MM	: function(d)	{ return zeroPad(d.getMonth() + 1) },
 	MMM	: function(d,o)	{ return o.monthNamesShort[d.getMonth()] },
 	MMMM: function(d,o)	{ return o.monthNames[d.getMonth()] },
 	yy	: function(d)	{ return (d.getFullYear()+'').substring(2) },
 	yyyy: function(d)	{ return d.getFullYear() },
 	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' },
 	u	: function(d)	{ return formatDate(d, "yyyy-MM-dd'T'HH:mm:ss'Z'") },
 	S	: function(d)	{
 		var date = d.getDate();
 		if (date > 10 && date < 20) {
 			return 'th';
 		}
 		return ['st', 'nd', 'rd'][date%10-1] || 'th';
 	},
 	w   : function(d, o) { // local
 		return o.weekNumberCalculation(d);
 	},
 	W   : function(d) { // ISO
 		return iso8601Week(d);
 	}
 };
 fc.dateFormatters = dateFormatters;


 /* thanks jQuery UI (https://github.com/jquery/jquery-ui/blob/master/ui/jquery.ui.datepicker.js)
 * 
 * Set as calculateWeek to determine the week of the year based on the ISO 8601 definition.
 * `date` - the date to get the week for
 * `number` - the number of the week within the year that contains this date
 */
 function iso8601Week(date) {
 	var time;
 	var checkDate = new Date(date.getTime());

 	// Find Thursday of this week starting on Monday
 	checkDate.setDate(checkDate.getDate() + 4 - (checkDate.getDay() || 7));

 	time = checkDate.getTime();
 	checkDate.setMonth(0); // Compare with Jan 1
 	checkDate.setDate(1);
 	return Math.floor(Math.round((time - checkDate) / 86400000) / 7) + 1;
 }


 ;;

 fc.applyAll = applyAll;


 /* Event Date Math
 -----------------------------------------------------------------------------*/


 function exclEndDay(event) {
 	if (event.end) {
 		return _exclEndDay(event.end, event.allDay);
 	}else{
 		return addDays(cloneDate(event.start), 1);
 	}
 }


 function _exclEndDay(end, allDay) {
 	end = cloneDate(end);
 	return allDay || end.getHours() || end.getMinutes() ? addDays(end, 1) : clearTime(end);
 	// why don't we check for seconds/ms too?
 }



 /* Event Element Binding
 -----------------------------------------------------------------------------*/


 function lazySegBind(container, segs, bindHandlers) {
 	container.unbind('mouseover').mouseover(function(ev) {
 		var parent=ev.target, e,
 			i, seg;
 		while (parent != this) {
 			e = parent;
 			parent = parent.parentNode;
 		}
 		if ((i = e._fci) !== undefined) {
 			e._fci = undefined;
 			seg = segs[i];
 			bindHandlers(seg.event, seg.element, seg);
 			$(ev.target).trigger(ev);
 		}
 		ev.stopPropagation();
 	});
 }



 /* Element Dimensions
 -----------------------------------------------------------------------------*/


 function setOuterWidth(element, width, includeMargins) {
 	for (var i=0, e; i<element.length; i++) {
 		e = $(element[i]);
 		e.width(Math.max(0, width - hsides(e, includeMargins)));
 	}
 }


 function setOuterHeight(element, height, includeMargins) {
 	for (var i=0, e; i<element.length; i++) {
 		e = $(element[i]);
 		e.height(Math.max(0, height - vsides(e, includeMargins)));
 	}
 }


 function hsides(element, includeMargins) {
 	return hpadding(element) + hborders(element) + (includeMargins ? hmargins(element) : 0);
 }


 function hpadding(element) {
 	return (parseFloat($.css(element[0], 'paddingLeft', true)) || 0) +
 	       (parseFloat($.css(element[0], 'paddingRight', true)) || 0);
 }


 function hmargins(element) {
 	return (parseFloat($.css(element[0], 'marginLeft', true)) || 0) +
 	       (parseFloat($.css(element[0], 'marginRight', true)) || 0);
 }


 function hborders(element) {
 	return (parseFloat($.css(element[0], 'borderLeftWidth', true)) || 0) +
 	       (parseFloat($.css(element[0], 'borderRightWidth', true)) || 0);
 }


 function vsides(element, includeMargins) {
 	return vpadding(element) +  vborders(element) + (includeMargins ? vmargins(element) : 0);
 }


 function vpadding(element) {
 	return (parseFloat($.css(element[0], 'paddingTop', true)) || 0) +
 	       (parseFloat($.css(element[0], 'paddingBottom', true)) || 0);
 }


 function vmargins(element) {
 	return (parseFloat($.css(element[0], 'marginTop', true)) || 0) +
 	       (parseFloat($.css(element[0], 'marginBottom', true)) || 0);
 }


 function vborders(element) {
 	return (parseFloat($.css(element[0], 'borderTopWidth', true)) || 0) +
 	       (parseFloat($.css(element[0], 'borderBottomWidth', true)) || 0);
 }



 /* Misc Utils
 -----------------------------------------------------------------------------*/


 //TODO: arraySlice
 //TODO: isFunction, grep ?


 function noop() { }


 function dateCompare(a, b) {
 	return a - b;
 }


 function arrayMax(a) {
 	return Math.max.apply(Math, a);
 }


 function zeroPad(n) {
 	return (n < 10 ? '0' : '') + n;
 }


 function smartProperty(obj, name) { // get a camel-cased/namespaced property of an object
 	if (obj[name] !== undefined) {
 		return obj[name];
 	}
 	var parts = name.split(/(?=[A-Z])/),
 		i=parts.length-1, res;
 	for (; i>=0; i--) {
 		res = obj[parts[i].toLowerCase()];
 		if (res !== undefined) {
 			return res;
 		}
 	}
 	return obj[''];
 }


 function htmlEscape(s) {
 	return s.replace(/&/g, '&amp;')
 		.replace(/</g, '&lt;')
 		.replace(/>/g, '&gt;')
 		.replace(/'/g, '&#039;')
 		.replace(/"/g, '&quot;')
 		.replace(/\n/g, '<br />');
 }


 function disableTextSelection(element) {
 	element
 		.attr('unselectable', 'on')
 		.css('MozUserSelect', 'none')
 		.bind('selectstart.ui', function() { return false; });
 }


 /*
 function enableTextSelection(element) {
 	element
 		.attr('unselectable', 'off')
 		.css('MozUserSelect', '')
 		.unbind('selectstart.ui');
 }
 */


 function markFirstLast(e) {
 	e.children()
 		.removeClass('fc-first fc-last')
 		.filter(':first-child')
 			.addClass('fc-first')
 		.end()
 		.filter(':last-child')
 			.addClass('fc-last');
 }


 function setDayID(cell, date) {
 	cell.each(function(i, _cell) {
 		_cell.className = _cell.className.replace(/^fc-\w*/, 'fc-' + dayIDs[date.getDay()]);
 		// TODO: make a way that doesn't rely on order of classes
 	});
 }


 function getSkinCss(event, opt) {
 	var source = event.source || {};
 	var eventColor = event.color;
 	var sourceColor = source.color;
 	var optionColor = opt('eventColor');
 	var backgroundColor =
 		event.backgroundColor ||
 		eventColor ||
 		source.backgroundColor ||
 		sourceColor ||
 		opt('eventBackgroundColor') ||
 		optionColor;
 	var borderColor =
 		event.borderColor ||
 		eventColor ||
 		source.borderColor ||
 		sourceColor ||
 		opt('eventBorderColor') ||
 		optionColor;
 	var textColor =
 		event.textColor ||
 		source.textColor ||
 		opt('eventTextColor');
 	var statements = [];
 	if (backgroundColor) {
 		statements.push('background-color:' + backgroundColor);
 	}
 	if (borderColor) {
 		statements.push('border-color:' + borderColor);
 	}
 	if (textColor) {
 		statements.push('color:' + textColor);
 	}
 	return statements.join(';');
 }


 function applyAll(functions, thisObj, args) {
 	if ($.isFunction(functions)) {
 		functions = [ functions ];
 	}
 	if (functions) {
 		var i;
 		var ret;
 		for (i=0; i<functions.length; i++) {
 			ret = functions[i].apply(thisObj, args) || ret;
 		}
 		return ret;
 	}
 }


 function firstDefined() {
 	for (var i=0; i<arguments.length; i++) {
 		if (arguments[i] !== undefined) {
 			return arguments[i];
 		}
 	}
 }


 ;;

 fcViews.month = MonthView;

 function MonthView(element, calendar) {
 	var t = this;
 	
 	
 	// exports
 	t.render = render;
 	
 	
 	// imports
 	BasicView.call(t, element, calendar, 'month');
 	var opt = t.opt;
 	var renderBasic = t.renderBasic;
 	var skipHiddenDays = t.skipHiddenDays;
 	var getCellsPerWeek = t.getCellsPerWeek;
 	var formatDate = calendar.formatDate;
 	
 	
 	function render(date, delta) {

 		if (delta) {
 			addMonths(date, delta);
 			date.setDate(1);
 		}

 		var firstDay = opt('firstDay');

 		var start = cloneDate(date, true);
 		start.setDate(1);

 		var end = addMonths(cloneDate(start), 1);

 		var visStart = cloneDate(start);
 		addDays(visStart, -((visStart.getDay() - firstDay + 7) % 7));
 		skipHiddenDays(visStart);

 		var visEnd = cloneDate(end);
 		addDays(visEnd, (7 - visEnd.getDay() + firstDay) % 7);
 		skipHiddenDays(visEnd, -1, true);

 		var colCnt = getCellsPerWeek();
 		var rowCnt = Math.round(dayDiff(visEnd, visStart) / 7); // should be no need for Math.round

 		if (opt('weekMode') == 'fixed') {
 			addDays(visEnd, (6 - rowCnt) * 7); // add weeks to make up for it
 			rowCnt = 6;
 		}

 		t.title = formatDate(start, opt('titleFormat'));

 		t.start = start;
 		t.end = end;
 		t.visStart = visStart;
 		t.visEnd = visEnd;

 		renderBasic(rowCnt, colCnt, true);
 	}
 	
 	
 }

 ;;

 fcViews.basicWeek = BasicWeekView;

 function BasicWeekView(element, calendar) {
 	var t = this;
 	
 	
 	// exports
 	t.render = render;
 	
 	
 	// imports
 	BasicView.call(t, element, calendar, 'basicWeek');
 	var opt = t.opt;
 	var renderBasic = t.renderBasic;
 	var skipHiddenDays = t.skipHiddenDays;
 	var getCellsPerWeek = t.getCellsPerWeek;
 	var formatDates = calendar.formatDates;
 	
 	
 	function render(date, delta) {

 		if (delta) {
 			addDays(date, delta * 7);
 		}

 		var start = addDays(cloneDate(date), -((date.getDay() - opt('firstDay') + 7) % 7));
 		var end = addDays(cloneDate(start), 7);

 		var visStart = cloneDate(start);
 		skipHiddenDays(visStart);

 		var visEnd = cloneDate(end);
 		skipHiddenDays(visEnd, -1, true);

 		var rowCnt = getCellsPerWeek();

 		t.start = start;
 		t.end = end;
 		t.visStart = visStart;
 		t.visEnd = visEnd;

 		t.title = formatDates(
 			visStart,
 			addDays(cloneDate(visEnd), -1),
 			opt('titleFormat')
 		);

 		renderBasic(rowCnt, 1, false);
 	}
 	
 	
 }

 ;;

 fcViews.basicDay = BasicDayView;


 function BasicDayView(element, calendar) {
 	var t = this;
 	
 	
 	// exports
 	t.render = render;
 	
 	
 	// imports
 	BasicView.call(t, element, calendar, 'basicDay');
 	var opt = t.opt;
 	var renderBasic = t.renderBasic;
 	var skipHiddenDays = t.skipHiddenDays;
 	var formatDate = calendar.formatDate;
 	
 	
 	function render(date, delta) {

 		if (delta) {
 			addDays(date, delta);
 		}
 		skipHiddenDays(date, delta < 0 ? -1 : 1);

 		var start = cloneDate(date, true);
 		var end = addDays(cloneDate(start), 1);

 		t.title = formatDate(date, opt('titleFormat'));

 		t.start = t.visStart = start;
 		t.end = t.visEnd = end;

 		renderBasic(1, 1, false);
 	}
 	
 	
 }

 ;;

 setDefaults({
 	weekMode: 'fixed'
 });


 function BasicView(element, calendar, viewName) {
 	var t = this;
 	
 	
 	// exports
 	t.renderBasic = renderBasic;
 	t.setHeight = setHeight;
 	t.setWidth = setWidth;
 	t.renderDayOverlay = renderDayOverlay;
 	t.defaultSelectionEnd = defaultSelectionEnd;
 	t.renderSelection = renderSelection;
 	t.clearSelection = clearSelection;
 	t.reportDayClick = reportDayClick; // for selection (kinda hacky)
 	t.dragStart = dragStart;
 	t.dragStop = dragStop;
 	t.defaultEventEnd = defaultEventEnd;
 	t.getHoverListener = function() { return hoverListener };
 	t.colLeft = colLeft;
 	t.colRight = colRight;
 	t.colContentLeft = colContentLeft;
 	t.colContentRight = colContentRight;
 	t.getIsCellAllDay = function() { return true };
 	t.allDayRow = allDayRow;
 	t.getRowCnt = function() { return rowCnt };
 	t.getColCnt = function() { return colCnt };
 	t.getColWidth = function() { return colWidth };
 	t.getDaySegmentContainer = function() { return daySegmentContainer };
 	
 	
 	// imports
 	View.call(t, element, calendar, viewName);
 	OverlayManager.call(t);
 	SelectionManager.call(t);
 	BasicEventRenderer.call(t);
 	var opt = t.opt;
 	var trigger = t.trigger;
 	var renderOverlay = t.renderOverlay;
 	var clearOverlays = t.clearOverlays;
 	var daySelectionMousedown = t.daySelectionMousedown;
 	var cellToDate = t.cellToDate;
 	var dateToCell = t.dateToCell;
 	var rangeToSegments = t.rangeToSegments;
 	var formatDate = calendar.formatDate;
 	
 	
 	// locals
 	
 	var table;
 	var head;
 	var headCells;
 	var body;
 	var bodyRows;
 	var bodyCells;
 	var bodyFirstCells;
 	var firstRowCellInners;
 	var firstRowCellContentInners;
 	var daySegmentContainer;
 	
 	var viewWidth;
 	var viewHeight;
 	var colWidth;
 	var weekNumberWidth;
 	
 	var rowCnt, colCnt;
 	var showNumbers;
 	var coordinateGrid;
 	var hoverListener;
 	var colPositions;
 	var colContentPositions;
 	
 	var tm;
 	var colFormat;
 	var showWeekNumbers;
 	var weekNumberTitle;
 	var weekNumberFormat;
 	
 	
 	
 	/* Rendering
 	------------------------------------------------------------*/
 	
 	
 	disableTextSelection(element.addClass('fc-grid'));
 	
 	
 	function renderBasic(_rowCnt, _colCnt, _showNumbers) {
 		rowCnt = _rowCnt;
 		colCnt = _colCnt;
 		showNumbers = _showNumbers;
 		updateOptions();

 		if (!body) {
 			buildEventContainer();
 		}

 		buildTable();
 	}
 	
 	
 	function updateOptions() {
 		tm = opt('theme') ? 'ui' : 'fc';
 		colFormat = opt('columnFormat');

 		// week # options. (TODO: bad, logic also in other views)
 		showWeekNumbers = opt('weekNumbers');
 		weekNumberTitle = opt('weekNumberTitle');
 		if (opt('weekNumberCalculation') != 'iso') {
 			weekNumberFormat = "w";
 		}
 		else {
 			weekNumberFormat = "W";
 		}
 	}
 	
 	
 	function buildEventContainer() {
 		daySegmentContainer =
 			$("<div class='fc-event-container' style='position:absolute;z-index:8;top:0;left:0'/>")
 				.appendTo(element);
 	}
 	
 	
 	function buildTable() {
 		var html = buildTableHTML();

 		if (table) {
 			table.remove();
 		}
 		table = $(html).appendTo(element);

 		head = table.find('thead');
 		headCells = head.find('.fc-day-header');
 		body = table.find('tbody');
 		bodyRows = body.find('tr');
 		bodyCells = body.find('.fc-day');
 		bodyFirstCells = bodyRows.find('td:first-child');

 		firstRowCellInners = bodyRows.eq(0).find('.fc-day > div');
 		firstRowCellContentInners = bodyRows.eq(0).find('.fc-day-content > div');
 		
 		markFirstLast(head.add(head.find('tr'))); // marks first+last tr/th's
 		markFirstLast(bodyRows); // marks first+last td's
 		bodyRows.eq(0).addClass('fc-first');
 		bodyRows.filter(':last').addClass('fc-last');

 		bodyCells.each(function(i, _cell) {
 			var date = cellToDate(
 				Math.floor(i / colCnt),
 				i % colCnt
 			);
 			trigger('dayRender', t, date, $(_cell));
 		});

 		dayBind(bodyCells);
 	}



 	/* HTML Building
 	-----------------------------------------------------------*/


 	function buildTableHTML() {
 		var html =
 			"<table class='fc-border-separate' style='width:100%' cellspacing='0'>" +
 			buildHeadHTML() +
 			buildBodyHTML() +
 			"</table>";

 		return html;
 	}


 	function buildHeadHTML() {
 		var headerClass = tm + "-widget-header";
 		var html = '';
 		var col;
 		var date;

 		html += "<thead><tr>";

 		if (showWeekNumbers) {
 			html +=
 				"<th class='fc-week-number " + headerClass + "'>" +
 				htmlEscape(weekNumberTitle) +
 				"</th>";
 		}

 		for (col=0; col<colCnt; col++) {
 			date = cellToDate(0, col);
 			html +=
 				"<th class='fc-day-header fc-" + dayIDs[date.getDay()] + " " + headerClass + "'>" +
 				htmlEscape(formatDate(date, colFormat)) +
 				"</th>";
 		}

 		html += "</tr></thead>";

 		return html;
 	}


 	function buildBodyHTML() {
 		var contentClass = tm + "-widget-content";
 		var html = '';
 		var row;
 		var col;
 		var date;

 		html += "<tbody>";

 		for (row=0; row<rowCnt; row++) {

 			html += "<tr class='fc-week'>";

 			if (showWeekNumbers) {
 				date = cellToDate(row, 0);
 				html +=
 					"<td class='fc-week-number " + contentClass + "'>" +
 					"<div>" +
 					htmlEscape(formatDate(date, weekNumberFormat)) +
 					"</div>" +
 					"</td>";
 			}

 			for (col=0; col<colCnt; col++) {
 				date = cellToDate(row, col);
 				html += buildCellHTML(date);
 			}

 			html += "</tr>";
 		}

 		html += "</tbody>";

 		return html;
 	}


 	function buildCellHTML(date) {
 		var contentClass = tm + "-widget-content";
 		var month = t.start.getMonth();
 		var today = clearTime(new Date());
 		var html = '';
 		var classNames = [
 			'fc-day',
 			'fc-' + dayIDs[date.getDay()],
 			contentClass
 		];

 		if (date.getMonth() != month) {
 			classNames.push('fc-other-month');
 		}
 		if (+date == +today) {
 			classNames.push(
 				'fc-today',
 				tm + '-state-highlight'
 			);
 		}
 		else if (date < today) {
 			classNames.push('fc-past');
 		}
 		else {
 			classNames.push('fc-future');
 		}

 		html +=
 			"<td" +
 			" class='" + classNames.join(' ') + "'" +
 			" data-date='" + formatDate(date, 'yyyy-MM-dd') + "'" +
 			">" +
 			"<div>";

 		if (showNumbers) {
 			html += "<div class='fc-day-number'>" + date.getDate() + "</div>";
 		}

 		html +=
 			"<div class='fc-day-content'>" +
 			"<div style='position:relative'>&nbsp;</div>" +
 			"</div>" +
 			"</div>" +
 			"</td>";

 		return html;
 	}



 	/* Dimensions
 	-----------------------------------------------------------*/
 	
 	
 	function setHeight(height) {
 		viewHeight = height;
 		
 		var bodyHeight = viewHeight - head.height();
 		var rowHeight;
 		var rowHeightLast;
 		var cell;
 			
 		if (opt('weekMode') == 'variable') {
 			rowHeight = rowHeightLast = Math.floor(bodyHeight / (rowCnt==1 ? 2 : 6));
 		}else{
 			rowHeight = Math.floor(bodyHeight / rowCnt);
 			rowHeightLast = bodyHeight - rowHeight * (rowCnt-1);
 		}
 		
 		bodyFirstCells.each(function(i, _cell) {
 			if (i < rowCnt) {
 				cell = $(_cell);
 				cell.find('> div').css(
 					'min-height',
 					(i==rowCnt-1 ? rowHeightLast : rowHeight) - vsides(cell)
 				);
 			}
 		});
 		
 	}
 	
 	
 	function setWidth(width) {
 		viewWidth = width;
 		colPositions.clear();
 		colContentPositions.clear();

 		weekNumberWidth = 0;
 		if (showWeekNumbers) {
 			weekNumberWidth = head.find('th.fc-week-number').outerWidth();
 		}

 		colWidth = Math.floor((viewWidth - weekNumberWidth) / colCnt);
 		setOuterWidth(headCells.slice(0, -1), colWidth);
 	}
 	
 	
 	
 	/* Day clicking and binding
 	-----------------------------------------------------------*/
 	
 	
 	function dayBind(days) {
 		days.click(dayClick)
 			.mousedown(daySelectionMousedown);
 	}
 	
 	
 	function dayClick(ev) {
 		if (!opt('selectable')) { // if selectable, SelectionManager will worry about dayClick
 			var date = parseISO8601($(this).data('date'));
 			trigger('dayClick', this, date, true, ev);
 		}
 	}
 	
 	
 	
 	/* Semi-transparent Overlay Helpers
 	------------------------------------------------------*/
 	// TODO: should be consolidated with AgendaView's methods


 	function renderDayOverlay(overlayStart, overlayEnd, refreshCoordinateGrid) { // overlayEnd is exclusive

 		if (refreshCoordinateGrid) {
 			coordinateGrid.build();
 		}

 		var segments = rangeToSegments(overlayStart, overlayEnd);

 		for (var i=0; i<segments.length; i++) {
 			var segment = segments[i];
 			dayBind(
 				renderCellOverlay(
 					segment.row,
 					segment.leftCol,
 					segment.row,
 					segment.rightCol
 				)
 			);
 		}
 	}

 	
 	function renderCellOverlay(row0, col0, row1, col1) { // row1,col1 is inclusive
 		var rect = coordinateGrid.rect(row0, col0, row1, col1, element);
 		return renderOverlay(rect, element);
 	}
 	
 	
 	
 	/* Selection
 	-----------------------------------------------------------------------*/
 	
 	
 	function defaultSelectionEnd(startDate, allDay) {
 		return cloneDate(startDate);
 	}
 	
 	
 	function renderSelection(startDate, endDate, allDay) {
 		renderDayOverlay(startDate, addDays(cloneDate(endDate), 1), true); // rebuild every time???
 	}
 	
 	
 	function clearSelection() {
 		clearOverlays();
 	}
 	
 	
 	function reportDayClick(date, allDay, ev) {
 		var cell = dateToCell(date);
 		var _element = bodyCells[cell.row*colCnt + cell.col];
 		trigger('dayClick', _element, date, allDay, ev);
 	}
 	
 	
 	
 	/* External Dragging
 	-----------------------------------------------------------------------*/
 	
 	
 	function dragStart(_dragElement, ev, ui) {
 		hoverListener.start(function(cell) {
 			clearOverlays();
 			if (cell) {
 				renderCellOverlay(cell.row, cell.col, cell.row, cell.col);
 			}
 		}, ev);
 	}
 	
 	
 	function dragStop(_dragElement, ev, ui) {
 		var cell = hoverListener.stop();
 		clearOverlays();
 		if (cell) {
 			var d = cellToDate(cell);
 			trigger('drop', _dragElement, d, true, ev, ui);
 		}
 	}
 	
 	
 	
 	/* Utilities
 	--------------------------------------------------------*/
 	
 	
 	function defaultEventEnd(event) {
 		return cloneDate(event.start);
 	}
 	
 	
 	coordinateGrid = new CoordinateGrid(function(rows, cols) {
 		var e, n, p;
 		headCells.each(function(i, _e) {
 			e = $(_e);
 			n = e.offset().left;
 			if (i) {
 				p[1] = n;
 			}
 			p = [n];
 			cols[i] = p;
 		});
 		p[1] = n + e.outerWidth();
 		bodyRows.each(function(i, _e) {
 			if (i < rowCnt) {
 				e = $(_e);
 				n = e.offset().top;
 				if (i) {
 					p[1] = n;
 				}
 				p = [n];
 				rows[i] = p;
 			}
 		});
 		p[1] = n + e.outerHeight();
 	});
 	
 	
 	hoverListener = new HoverListener(coordinateGrid);
 	
 	colPositions = new HorizontalPositionCache(function(col) {
 		return firstRowCellInners.eq(col);
 	});

 	colContentPositions = new HorizontalPositionCache(function(col) {
 		return firstRowCellContentInners.eq(col);
 	});


 	function colLeft(col) {
 		return colPositions.left(col);
 	}


 	function colRight(col) {
 		return colPositions.right(col);
 	}
 	
 	
 	function colContentLeft(col) {
 		return colContentPositions.left(col);
 	}
 	
 	
 	function colContentRight(col) {
 		return colContentPositions.right(col);
 	}
 	
 	
 	function allDayRow(i) {
 		return bodyRows.eq(i);
 	}
 	
 }

 ;;

 function BasicEventRenderer() {
 	var t = this;
 	
 	
 	// exports
 	t.renderEvents = renderEvents;
 	t.clearEvents = clearEvents;
 	

 	// imports
 	DayEventRenderer.call(t);

 	
 	function renderEvents(events, modifiedEventId) {
 		t.renderDayEvents(events, modifiedEventId);
 	}
 	
 	
 	function clearEvents() {
 		t.getDaySegmentContainer().empty();
 	}


 	// TODO: have this class (and AgendaEventRenderer) be responsible for creating the event container div

 }

 ;;

 fcViews.agendaWeek = AgendaWeekView;

 function AgendaWeekView(element, calendar) {
 	var t = this;
 	
 	
 	// exports
 	t.render = render;
 	
 	
 	// imports
 	AgendaView.call(t, element, calendar, 'agendaWeek');
 	var opt = t.opt;
 	var renderAgenda = t.renderAgenda;
 	var skipHiddenDays = t.skipHiddenDays;
 	var getCellsPerWeek = t.getCellsPerWeek;
 	var formatDates = calendar.formatDates;

 	
 	function render(date, delta) {

 		if (delta) {
 			addDays(date, delta * 7);
 		}

 		var start = addDays(cloneDate(date), -((date.getDay() - opt('firstDay') + 7) % 7));
 		var end = addDays(cloneDate(start), 7);

 		var visStart = cloneDate(start);
 		skipHiddenDays(visStart);

 		var visEnd = cloneDate(end);
 		skipHiddenDays(visEnd, -1, true);

 		var colCnt = getCellsPerWeek();

 		t.title = formatDates(
 			visStart,
 			addDays(cloneDate(visEnd), -1),
 			opt('titleFormat')
 		);

 		t.start = start;
 		t.end = end;
 		t.visStart = visStart;
 		t.visEnd = visEnd;

 		renderAgenda(colCnt);
 	}

 }

 ;;

 fcViews.agendaDay = AgendaDayView;


 function AgendaDayView(element, calendar) {
 	var t = this;
 	
 	
 	// exports
 	t.render = render;
 	
 	
 	// imports
 	AgendaView.call(t, element, calendar, 'agendaDay');
 	var opt = t.opt;
 	var renderAgenda = t.renderAgenda;
 	var skipHiddenDays = t.skipHiddenDays;
 	var formatDate = calendar.formatDate;
 	
 	
 	function render(date, delta) {

 		if (delta) {
 			addDays(date, delta);
 		}
 		skipHiddenDays(date, delta < 0 ? -1 : 1);

 		var start = cloneDate(date, true);
 		var end = addDays(cloneDate(start), 1);

 		t.title = formatDate(date, opt('titleFormat'));

 		t.start = t.visStart = start;
 		t.end = t.visEnd = end;

 		renderAgenda(1);
 	}
 	

 }

 ;;

 setDefaults({
 	allDaySlot: true,
 	allDayText: 'all-day',
 	firstHour: 6,
 	slotMinutes: 30,
 	defaultEventMinutes: 120,
 	axisFormat: 'h(:mm)tt',
 	timeFormat: {
 		agenda: 'h:mm{ - h:mm}'
 	},
 	dragOpacity: {
 		agenda: .5
 	},
 	minTime: 0,
 	maxTime: 24,
 	slotEventOverlap: true
 });


 // TODO: make it work in quirks mode (event corners, all-day height)
 // TODO: test liquid width, especially in IE6


 function AgendaView(element, calendar, viewName) {
 	var t = this;
 	
 	
 	// exports
 	t.renderAgenda = renderAgenda;
 	t.setWidth = setWidth;
 	t.setHeight = setHeight;
 	t.afterRender = afterRender;
 	t.defaultEventEnd = defaultEventEnd;
 	t.timePosition = timePosition;
 	t.getIsCellAllDay = getIsCellAllDay;
 	t.allDayRow = getAllDayRow;
 	t.getCoordinateGrid = function() { return coordinateGrid }; // specifically for AgendaEventRenderer
 	t.getHoverListener = function() { return hoverListener };
 	t.colLeft = colLeft;
 	t.colRight = colRight;
 	t.colContentLeft = colContentLeft;
 	t.colContentRight = colContentRight;
 	t.getDaySegmentContainer = function() { return daySegmentContainer };
 	t.getSlotSegmentContainer = function() { return slotSegmentContainer };
 	t.getMinMinute = function() { return minMinute };
 	t.getMaxMinute = function() { return maxMinute };
 	t.getSlotContainer = function() { return slotContainer };
 	t.getRowCnt = function() { return 1 };
 	t.getColCnt = function() { return colCnt };
 	t.getColWidth = function() { return colWidth };
 	t.getSnapHeight = function() { return snapHeight };
 	t.getSnapMinutes = function() { return snapMinutes };
 	t.defaultSelectionEnd = defaultSelectionEnd;
 	t.renderDayOverlay = renderDayOverlay;
 	t.renderSelection = renderSelection;
 	t.clearSelection = clearSelection;
 	t.reportDayClick = reportDayClick; // selection mousedown hack
 	t.dragStart = dragStart;
 	t.dragStop = dragStop;
 	
 	
 	// imports
 	View.call(t, element, calendar, viewName);
 	OverlayManager.call(t);
 	SelectionManager.call(t);
 	AgendaEventRenderer.call(t);
 	var opt = t.opt;
 	var trigger = t.trigger;
 	var renderOverlay = t.renderOverlay;
 	var clearOverlays = t.clearOverlays;
 	var reportSelection = t.reportSelection;
 	var unselect = t.unselect;
 	var daySelectionMousedown = t.daySelectionMousedown;
 	var slotSegHtml = t.slotSegHtml;
 	var cellToDate = t.cellToDate;
 	var dateToCell = t.dateToCell;
 	var rangeToSegments = t.rangeToSegments;
 	var formatDate = calendar.formatDate;
 	
 	
 	// locals
 	
 	var dayTable;
 	var dayHead;
 	var dayHeadCells;
 	var dayBody;
 	var dayBodyCells;
 	var dayBodyCellInners;
 	var dayBodyCellContentInners;
 	var dayBodyFirstCell;
 	var dayBodyFirstCellStretcher;
 	var slotLayer;
 	var daySegmentContainer;
 	var allDayTable;
 	var allDayRow;
 	var slotScroller;
 	var slotContainer;
 	var slotSegmentContainer;
 	var slotTable;
 	var selectionHelper;
 	
 	var viewWidth;
 	var viewHeight;
 	var axisWidth;
 	var colWidth;
 	var gutterWidth;
 	var slotHeight; // TODO: what if slotHeight changes? (see issue 650)

 	var snapMinutes;
 	var snapRatio; // ratio of number of "selection" slots to normal slots. (ex: 1, 2, 4)
 	var snapHeight; // holds the pixel hight of a "selection" slot
 	
 	var colCnt;
 	var slotCnt;
 	var coordinateGrid;
 	var hoverListener;
 	var colPositions;
 	var colContentPositions;
 	var slotTopCache = {};
 	
 	var tm;
 	var rtl;
 	var minMinute, maxMinute;
 	var colFormat;
 	var showWeekNumbers;
 	var weekNumberTitle;
 	var weekNumberFormat;
 	

 	
 	/* Rendering
 	-----------------------------------------------------------------------------*/
 	
 	
 	disableTextSelection(element.addClass('fc-agenda'));
 	
 	
 	function renderAgenda(c) {
 		colCnt = c;
 		updateOptions();

 		if (!dayTable) { // first time rendering?
 			buildSkeleton(); // builds day table, slot area, events containers
 		}
 		else {
 			buildDayTable(); // rebuilds day table
 		}
 	}
 	
 	
 	function updateOptions() {

 		tm = opt('theme') ? 'ui' : 'fc';
 		rtl = opt('isRTL')
 		minMinute = parseTime(opt('minTime'));
 		maxMinute = parseTime(opt('maxTime'));
 		colFormat = opt('columnFormat');

 		// week # options. (TODO: bad, logic also in other views)
 		showWeekNumbers = opt('weekNumbers');
 		weekNumberTitle = opt('weekNumberTitle');
 		if (opt('weekNumberCalculation') != 'iso') {
 			weekNumberFormat = "w";
 		}
 		else {
 			weekNumberFormat = "W";
 		}

 		snapMinutes = opt('snapMinutes') || opt('slotMinutes');
 	}



 	/* Build DOM
 	-----------------------------------------------------------------------*/


 	function buildSkeleton() {
 		var headerClass = tm + "-widget-header";
 		var contentClass = tm + "-widget-content";
 		var s;
 		var d;
 		var i;
 		var maxd;
 		var minutes;
 		var slotNormal = opt('slotMinutes') % 15 == 0;
 		
 		buildDayTable();
 		
 		slotLayer =
 			$("<div style='position:absolute;z-index:2;left:0;width:100%'/>")
 				.appendTo(element);
 				
 		if (opt('allDaySlot')) {
 		
 			daySegmentContainer =
 				$("<div class='fc-event-container' style='position:absolute;z-index:8;top:0;left:0'/>")
 					.appendTo(slotLayer);
 		
 			s =
 				"<table style='width:100%' class='fc-agenda-allday' cellspacing='0'>" +
 				"<tr>" +
 				"<th class='" + headerClass + " fc-agenda-axis'>" + opt('allDayText') + "</th>" +
 				"<td>" +
 				"<div class='fc-day-content'><div style='position:relative'/></div>" +
 				"</td>" +
 				"<th class='" + headerClass + " fc-agenda-gutter'>&nbsp;</th>" +
 				"</tr>" +
 				"</table>";
 			allDayTable = $(s).appendTo(slotLayer);
 			allDayRow = allDayTable.find('tr');
 			
 			dayBind(allDayRow.find('td'));
 			
 			slotLayer.append(
 				"<div class='fc-agenda-divider " + headerClass + "'>" +
 				"<div class='fc-agenda-divider-inner'/>" +
 				"</div>"
 			);
 			
 		}else{
 		
 			daySegmentContainer = $([]); // in jQuery 1.4, we can just do $()
 		
 		}
 		
 		slotScroller =
 			$("<div style='position:absolute;width:100%;overflow-x:hidden;overflow-y:auto'/>")
 				.appendTo(slotLayer);
 				
 		slotContainer =
 			$("<div style='position:relative;width:100%;overflow:hidden'/>")
 				.appendTo(slotScroller);
 				
 		slotSegmentContainer =
 			$("<div class='fc-event-container' style='position:absolute;z-index:8;top:0;left:0'/>")
 				.appendTo(slotContainer);
 		
 		s =
 			"<table class='fc-agenda-slots' style='width:100%' cellspacing='0'>" +
 			"<tbody>";
 		d = zeroDate();
 		maxd = addMinutes(cloneDate(d), maxMinute);
 		addMinutes(d, minMinute);
 		slotCnt = 0;
 		for (i=0; d < maxd; i++) {
 			minutes = d.getMinutes();
 			s +=
 				"<tr class='fc-slot" + i + ' ' + (!minutes ? '' : 'fc-minor') + "'>" +
 				"<th class='fc-agenda-axis " + headerClass + "'>" +
 				((!slotNormal || !minutes) ? formatDate(d, opt('axisFormat')) : '&nbsp;') +
 				"</th>" +
 				"<td class='" + contentClass + "'>" +
 				"<div style='position:relative'>&nbsp;</div>" +
 				"</td>" +
 				"</tr>";
 			addMinutes(d, opt('slotMinutes'));
 			slotCnt++;
 		}
 		s +=
 			"</tbody>" +
 			"</table>";
 		slotTable = $(s).appendTo(slotContainer);
 		
 		slotBind(slotTable.find('td'));
 	}



 	/* Build Day Table
 	-----------------------------------------------------------------------*/


 	function buildDayTable() {
 		var html = buildDayTableHTML();

 		if (dayTable) {
 			dayTable.remove();
 		}
 		dayTable = $(html).appendTo(element);

 		dayHead = dayTable.find('thead');
 		dayHeadCells = dayHead.find('th').slice(1, -1); // exclude gutter
 		dayBody = dayTable.find('tbody');
 		dayBodyCells = dayBody.find('td').slice(0, -1); // exclude gutter
 		dayBodyCellInners = dayBodyCells.find('> div');
 		dayBodyCellContentInners = dayBodyCells.find('.fc-day-content > div');

 		dayBodyFirstCell = dayBodyCells.eq(0);
 		dayBodyFirstCellStretcher = dayBodyCellInners.eq(0);
 		
 		markFirstLast(dayHead.add(dayHead.find('tr')));
 		markFirstLast(dayBody.add(dayBody.find('tr')));

 		// TODO: now that we rebuild the cells every time, we should call dayRender
 	}


 	function buildDayTableHTML() {
 		var html =
 			"<table style='width:100%' class='fc-agenda-days fc-border-separate' cellspacing='0'>" +
 			buildDayTableHeadHTML() +
 			buildDayTableBodyHTML() +
 			"</table>";

 		return html;
 	}


 	function buildDayTableHeadHTML() {
 		var headerClass = tm + "-widget-header";
 		var date;
 		var html = '';
 		var weekText;
 		var col;

 		html +=
 			"<thead>" +
 			"<tr>";

 		if (showWeekNumbers) {
 			date = cellToDate(0, 0);
 			weekText = formatDate(date, weekNumberFormat);
 			if (rtl) {
 				weekText += weekNumberTitle;
 			}
 			else {
 				weekText = weekNumberTitle + weekText;
 			}
 			html +=
 				"<th class='fc-agenda-axis fc-week-number " + headerClass + "'>" +
 				htmlEscape(weekText) +
 				"</th>";
 		}
 		else {
 			html += "<th class='fc-agenda-axis " + headerClass + "'>&nbsp;</th>";
 		}

 		for (col=0; col<colCnt; col++) {
 			date = cellToDate(0, col);
 			html +=
 				"<th class='fc-" + dayIDs[date.getDay()] + " fc-col" + col + ' ' + headerClass + "'>" +
 				htmlEscape(formatDate(date, colFormat)) +
 				"</th>";
 		}

 		html +=
 			"<th class='fc-agenda-gutter " + headerClass + "'>&nbsp;</th>" +
 			"</tr>" +
 			"</thead>";

 		return html;
 	}


 	function buildDayTableBodyHTML() {
 		var headerClass = tm + "-widget-header"; // TODO: make these when updateOptions() called
 		var contentClass = tm + "-widget-content";
 		var date;
 		var today = clearTime(new Date());
 		var col;
 		var cellsHTML;
 		var cellHTML;
 		var classNames;
 		var html = '';

 		html +=
 			"<tbody>" +
 			"<tr>" +
 			"<th class='fc-agenda-axis " + headerClass + "'>&nbsp;</th>";

 		cellsHTML = '';

 		for (col=0; col<colCnt; col++) {

 			date = cellToDate(0, col);

 			classNames = [
 				'fc-col' + col,
 				'fc-' + dayIDs[date.getDay()],
 				contentClass
 			];
 			if (+date == +today) {
 				classNames.push(
 					tm + '-state-highlight',
 					'fc-today'
 				);
 			}
 			else if (date < today) {
 				classNames.push('fc-past');
 			}
 			else {
 				classNames.push('fc-future');
 			}

 			cellHTML =
 				"<td class='" + classNames.join(' ') + "'>" +
 				"<div>" +
 				"<div class='fc-day-content'>" +
 				"<div style='position:relative'>&nbsp;</div>" +
 				"</div>" +
 				"</div>" +
 				"</td>";

 			cellsHTML += cellHTML;
 		}

 		html += cellsHTML;
 		html +=
 			"<td class='fc-agenda-gutter " + contentClass + "'>&nbsp;</td>" +
 			"</tr>" +
 			"</tbody>";

 		return html;
 	}


 	// TODO: data-date on the cells

 	
 	
 	/* Dimensions
 	-----------------------------------------------------------------------*/

 	
 	function setHeight(height) {
 		if (height === undefined) {
 			height = viewHeight;
 		}
 		viewHeight = height;
 		slotTopCache = {};
 	
 		var headHeight = dayBody.position().top;
 		var allDayHeight = slotScroller.position().top; // including divider
 		var bodyHeight = Math.min( // total body height, including borders
 			height - headHeight,   // when scrollbars
 			slotTable.height() + allDayHeight + 1 // when no scrollbars. +1 for bottom border
 		);

 		dayBodyFirstCellStretcher
 			.height(bodyHeight - vsides(dayBodyFirstCell));
 		
 		slotLayer.css('top', headHeight);
 		
 		slotScroller.height(bodyHeight - allDayHeight - 1);
 		
 		// the stylesheet guarantees that the first row has no border.
 		// this allows .height() to work well cross-browser.
 		slotHeight = slotTable.find('tr:first').height() + 1; // +1 for bottom border

 		snapRatio = opt('slotMinutes') / snapMinutes;
 		snapHeight = slotHeight / snapRatio;
 	}
 	
 	
 	function setWidth(width) {
 		viewWidth = width;
 		colPositions.clear();
 		colContentPositions.clear();

 		var axisFirstCells = dayHead.find('th:first');
 		if (allDayTable) {
 			axisFirstCells = axisFirstCells.add(allDayTable.find('th:first'));
 		}
 		axisFirstCells = axisFirstCells.add(slotTable.find('th:first'));
 		
 		axisWidth = 0;
 		setOuterWidth(
 			axisFirstCells
 				.width('')
 				.each(function(i, _cell) {
 					axisWidth = Math.max(axisWidth, $(_cell).outerWidth());
 				}),
 			axisWidth
 		);
 		
 		var gutterCells = dayTable.find('.fc-agenda-gutter');
 		if (allDayTable) {
 			gutterCells = gutterCells.add(allDayTable.find('th.fc-agenda-gutter'));
 		}

 		var slotTableWidth = slotScroller[0].clientWidth; // needs to be done after axisWidth (for IE7)
 		
 		gutterWidth = slotScroller.width() - slotTableWidth;
 		if (gutterWidth) {
 			setOuterWidth(gutterCells, gutterWidth);
 			gutterCells
 				.show()
 				.prev()
 				.removeClass('fc-last');
 		}else{
 			gutterCells
 				.hide()
 				.prev()
 				.addClass('fc-last');
 		}
 		
 		colWidth = Math.floor((slotTableWidth - axisWidth) / colCnt);
 		setOuterWidth(dayHeadCells.slice(0, -1), colWidth);
 	}
 	


 	/* Scrolling
 	-----------------------------------------------------------------------*/


 	function resetScroll() {
 		var d0 = zeroDate();
 		var scrollDate = cloneDate(d0);
 		scrollDate.setHours(opt('firstHour'));
 		var top = timePosition(d0, scrollDate) + 1; // +1 for the border
 		function scroll() {
 			slotScroller.scrollTop(top);
 		}
 		scroll();
 		setTimeout(scroll, 0); // overrides any previous scroll state made by the browser
 	}


 	function afterRender() { // after the view has been freshly rendered and sized
 		resetScroll();
 	}
 	
 	
 	
 	/* Slot/Day clicking and binding
 	-----------------------------------------------------------------------*/
 	

 	function dayBind(cells) {
 		cells.click(slotClick)
 			.mousedown(daySelectionMousedown);
 	}


 	function slotBind(cells) {
 		cells.click(slotClick)
 			.mousedown(slotSelectionMousedown);
 	}
 	
 	
 	function slotClick(ev) {
 		if (!opt('selectable')) { // if selectable, SelectionManager will worry about dayClick
 			var col = Math.min(colCnt-1, Math.floor((ev.pageX - dayTable.offset().left - axisWidth) / colWidth));
 			var date = cellToDate(0, col);
 			var rowMatch = this.parentNode.className.match(/fc-slot(\d+)/); // TODO: maybe use data
 			if (rowMatch) {
 				var mins = parseInt(rowMatch[1]) * opt('slotMinutes');
 				var hours = Math.floor(mins/60);
 				date.setHours(hours);
 				date.setMinutes(mins%60 + minMinute);
 				trigger('dayClick', dayBodyCells[col], date, false, ev);
 			}else{
 				trigger('dayClick', dayBodyCells[col], date, true, ev);
 			}
 		}
 	}
 	
 	
 	
 	/* Semi-transparent Overlay Helpers
 	-----------------------------------------------------*/
 	// TODO: should be consolidated with BasicView's methods


 	function renderDayOverlay(overlayStart, overlayEnd, refreshCoordinateGrid) { // overlayEnd is exclusive

 		if (refreshCoordinateGrid) {
 			coordinateGrid.build();
 		}

 		var segments = rangeToSegments(overlayStart, overlayEnd);

 		for (var i=0; i<segments.length; i++) {
 			var segment = segments[i];
 			dayBind(
 				renderCellOverlay(
 					segment.row,
 					segment.leftCol,
 					segment.row,
 					segment.rightCol
 				)
 			);
 		}
 	}
 	
 	
 	function renderCellOverlay(row0, col0, row1, col1) { // only for all-day?
 		var rect = coordinateGrid.rect(row0, col0, row1, col1, slotLayer);
 		return renderOverlay(rect, slotLayer);
 	}
 	

 	function renderSlotOverlay(overlayStart, overlayEnd) {
 		for (var i=0; i<colCnt; i++) {
 			var dayStart = cellToDate(0, i);
 			var dayEnd = addDays(cloneDate(dayStart), 1);
 			var stretchStart = new Date(Math.max(dayStart, overlayStart));
 			var stretchEnd = new Date(Math.min(dayEnd, overlayEnd));
 			if (stretchStart < stretchEnd) {
 				var rect = coordinateGrid.rect(0, i, 0, i, slotContainer); // only use it for horizontal coords
 				var top = timePosition(dayStart, stretchStart);
 				var bottom = timePosition(dayStart, stretchEnd);
 				rect.top = top;
 				rect.height = bottom - top;
 				slotBind(
 					renderOverlay(rect, slotContainer)
 				);
 			}
 		}
 	}
 	
 	
 	
 	/* Coordinate Utilities
 	-----------------------------------------------------------------------------*/
 	
 	
 	coordinateGrid = new CoordinateGrid(function(rows, cols) {
 		var e, n, p;
 		dayHeadCells.each(function(i, _e) {
 			e = $(_e);
 			n = e.offset().left;
 			if (i) {
 				p[1] = n;
 			}
 			p = [n];
 			cols[i] = p;
 		});
 		p[1] = n + e.outerWidth();
 		if (opt('allDaySlot')) {
 			e = allDayRow;
 			n = e.offset().top;
 			rows[0] = [n, n+e.outerHeight()];
 		}
 		var slotTableTop = slotContainer.offset().top;
 		var slotScrollerTop = slotScroller.offset().top;
 		var slotScrollerBottom = slotScrollerTop + slotScroller.outerHeight();
 		function constrain(n) {
 			return Math.max(slotScrollerTop, Math.min(slotScrollerBottom, n));
 		}
 		for (var i=0; i<slotCnt*snapRatio; i++) { // adapt slot count to increased/decreased selection slot count
 			rows.push([
 				constrain(slotTableTop + snapHeight*i),
 				constrain(slotTableTop + snapHeight*(i+1))
 			]);
 		}
 	});
 	
 	
 	hoverListener = new HoverListener(coordinateGrid);
 	
 	colPositions = new HorizontalPositionCache(function(col) {
 		return dayBodyCellInners.eq(col);
 	});
 	
 	colContentPositions = new HorizontalPositionCache(function(col) {
 		return dayBodyCellContentInners.eq(col);
 	});
 	
 	
 	function colLeft(col) {
 		return colPositions.left(col);
 	}


 	function colContentLeft(col) {
 		return colContentPositions.left(col);
 	}


 	function colRight(col) {
 		return colPositions.right(col);
 	}
 	
 	
 	function colContentRight(col) {
 		return colContentPositions.right(col);
 	}


 	function getIsCellAllDay(cell) {
 		return opt('allDaySlot') && !cell.row;
 	}


 	function realCellToDate(cell) { // ugh "real" ... but blame it on our abuse of the "cell" system
 		var d = cellToDate(0, cell.col);
 		var slotIndex = cell.row;
 		if (opt('allDaySlot')) {
 			slotIndex--;
 		}
 		if (slotIndex >= 0) {
 			addMinutes(d, minMinute + slotIndex * snapMinutes);
 		}
 		return d;
 	}
 	
 	
 	// get the Y coordinate of the given time on the given day (both Date objects)
 	function timePosition(day, time) { // both date objects. day holds 00:00 of current day
 		day = cloneDate(day, true);
 		if (time < addMinutes(cloneDate(day), minMinute)) {
 			return 0;
 		}
 		if (time >= addMinutes(cloneDate(day), maxMinute)) {
 			return slotTable.height();
 		}
 		var slotMinutes = opt('slotMinutes'),
 			minutes = time.getHours()*60 + time.getMinutes() - minMinute,
 			slotI = Math.floor(minutes / slotMinutes),
 			slotTop = slotTopCache[slotI];
 		if (slotTop === undefined) {
 			slotTop = slotTopCache[slotI] =
 				slotTable.find('tr').eq(slotI).find('td div')[0].offsetTop;
 				// .eq() is faster than ":eq()" selector
 				// [0].offsetTop is faster than .position().top (do we really need this optimization?)
 				// a better optimization would be to cache all these divs
 		}
 		return Math.max(0, Math.round(
 			slotTop - 1 + slotHeight * ((minutes % slotMinutes) / slotMinutes)
 		));
 	}
 	
 	
 	function getAllDayRow(index) {
 		return allDayRow;
 	}
 	
 	
 	function defaultEventEnd(event) {
 		var start = cloneDate(event.start);
 		if (event.allDay) {
 			return start;
 		}
 		return addMinutes(start, opt('defaultEventMinutes'));
 	}
 	
 	
 	
 	/* Selection
 	---------------------------------------------------------------------------------*/
 	
 	
 	function defaultSelectionEnd(startDate, allDay) {
 		if (allDay) {
 			return cloneDate(startDate);
 		}
 		return addMinutes(cloneDate(startDate), opt('slotMinutes'));
 	}
 	
 	
 	function renderSelection(startDate, endDate, allDay) { // only for all-day
 		if (allDay) {
 			if (opt('allDaySlot')) {
 				renderDayOverlay(startDate, addDays(cloneDate(endDate), 1), true);
 			}
 		}else{
 			renderSlotSelection(startDate, endDate);
 		}
 	}
 	
 	
 	function renderSlotSelection(startDate, endDate) {
 		var helperOption = opt('selectHelper');
 		coordinateGrid.build();
 		if (helperOption) {
 			var col = dateToCell(startDate).col;
 			if (col >= 0 && col < colCnt) { // only works when times are on same day
 				var rect = coordinateGrid.rect(0, col, 0, col, slotContainer); // only for horizontal coords
 				var top = timePosition(startDate, startDate);
 				var bottom = timePosition(startDate, endDate);
 				if (bottom > top) { // protect against selections that are entirely before or after visible range
 					rect.top = top;
 					rect.height = bottom - top;
 					rect.left += 2;
 					rect.width -= 5;
 					if ($.isFunction(helperOption)) {
 						var helperRes = helperOption(startDate, endDate);
 						if (helperRes) {
 							rect.position = 'absolute';
 							selectionHelper = $(helperRes)
 								.css(rect)
 								.appendTo(slotContainer);
 						}
 					}else{
 						rect.isStart = true; // conside rect a "seg" now
 						rect.isEnd = true;   //
 						selectionHelper = $(slotSegHtml(
 							{
 								title: '',
 								start: startDate,
 								end: endDate,
 								className: ['fc-select-helper'],
 								editable: false
 							},
 							rect
 						));
 						selectionHelper.css('opacity', opt('dragOpacity'));
 					}
 					if (selectionHelper) {
 						slotBind(selectionHelper);
 						slotContainer.append(selectionHelper);
 						setOuterWidth(selectionHelper, rect.width, true); // needs to be after appended
 						setOuterHeight(selectionHelper, rect.height, true);
 					}
 				}
 			}
 		}else{
 			renderSlotOverlay(startDate, endDate);
 		}
 	}
 	
 	
 	function clearSelection() {
 		clearOverlays();
 		if (selectionHelper) {
 			selectionHelper.remove();
 			selectionHelper = null;
 		}
 	}
 	
 	
 	function slotSelectionMousedown(ev) {
 		if (ev.which == 1 && opt('selectable')) { // ev.which==1 means left mouse button
 			unselect(ev);
 			var dates;
 			hoverListener.start(function(cell, origCell) {
 				clearSelection();
 				if (cell && cell.col == origCell.col && !getIsCellAllDay(cell)) {
 					var d1 = realCellToDate(origCell);
 					var d2 = realCellToDate(cell);
 					dates = [
 						d1,
 						addMinutes(cloneDate(d1), snapMinutes), // calculate minutes depending on selection slot minutes 
 						d2,
 						addMinutes(cloneDate(d2), snapMinutes)
 					].sort(dateCompare);
 					renderSlotSelection(dates[0], dates[3]);
 				}else{
 					dates = null;
 				}
 			}, ev);
 			$(document).one('mouseup', function(ev) {
 				hoverListener.stop();
 				if (dates) {
 					if (+dates[0] == +dates[1]) {
 						reportDayClick(dates[0], false, ev);
 					}
 					reportSelection(dates[0], dates[3], false, ev);
 				}
 			});
 		}
 	}


 	function reportDayClick(date, allDay, ev) {
 		trigger('dayClick', dayBodyCells[dateToCell(date).col], date, allDay, ev);
 	}
 	
 	
 	
 	/* External Dragging
 	--------------------------------------------------------------------------------*/
 	
 	
 	function dragStart(_dragElement, ev, ui) {
 		hoverListener.start(function(cell) {
 			clearOverlays();
 			if (cell) {
 				if (getIsCellAllDay(cell)) {
 					renderCellOverlay(cell.row, cell.col, cell.row, cell.col);
 				}else{
 					var d1 = realCellToDate(cell);
 					var d2 = addMinutes(cloneDate(d1), opt('defaultEventMinutes'));
 					renderSlotOverlay(d1, d2);
 				}
 			}
 		}, ev);
 	}
 	
 	
 	function dragStop(_dragElement, ev, ui) {
 		var cell = hoverListener.stop();
 		clearOverlays();
 		if (cell) {
 			trigger('drop', _dragElement, realCellToDate(cell), getIsCellAllDay(cell), ev, ui);
 		}
 	}
 	

 }

 ;;

 function AgendaEventRenderer() {
 	var t = this;
 	
 	
 	// exports
 	t.renderEvents = renderEvents;
 	t.clearEvents = clearEvents;
 	t.slotSegHtml = slotSegHtml;
 	
 	
 	// imports
 	DayEventRenderer.call(t);
 	var opt = t.opt;
 	var trigger = t.trigger;
 	var isEventDraggable = t.isEventDraggable;
 	var isEventResizable = t.isEventResizable;
 	var eventEnd = t.eventEnd;
 	var eventElementHandlers = t.eventElementHandlers;
 	var setHeight = t.setHeight;
 	var getDaySegmentContainer = t.getDaySegmentContainer;
 	var getSlotSegmentContainer = t.getSlotSegmentContainer;
 	var getHoverListener = t.getHoverListener;
 	var getMaxMinute = t.getMaxMinute;
 	var getMinMinute = t.getMinMinute;
 	var timePosition = t.timePosition;
 	var getIsCellAllDay = t.getIsCellAllDay;
 	var colContentLeft = t.colContentLeft;
 	var colContentRight = t.colContentRight;
 	var cellToDate = t.cellToDate;
 	var getColCnt = t.getColCnt;
 	var getColWidth = t.getColWidth;
 	var getSnapHeight = t.getSnapHeight;
 	var getSnapMinutes = t.getSnapMinutes;
 	var getSlotContainer = t.getSlotContainer;
 	var reportEventElement = t.reportEventElement;
 	var showEvents = t.showEvents;
 	var hideEvents = t.hideEvents;
 	var eventDrop = t.eventDrop;
 	var eventResize = t.eventResize;
 	var renderDayOverlay = t.renderDayOverlay;
 	var clearOverlays = t.clearOverlays;
 	var renderDayEvents = t.renderDayEvents;
 	var calendar = t.calendar;
 	var formatDate = calendar.formatDate;
 	var formatDates = calendar.formatDates;


 	// overrides
 	t.draggableDayEvent = draggableDayEvent;

 	
 	
 	/* Rendering
 	----------------------------------------------------------------------------*/
 	

 	function renderEvents(events, modifiedEventId) {
 		var i, len=events.length,
 			dayEvents=[],
 			slotEvents=[];
 		for (i=0; i<len; i++) {
 			if (events[i].allDay) {
 				dayEvents.push(events[i]);
 			}else{
 				slotEvents.push(events[i]);
 			}
 		}

 		if (opt('allDaySlot')) {
 			renderDayEvents(dayEvents, modifiedEventId);
 			setHeight(); // no params means set to viewHeight
 		}

 		renderSlotSegs(compileSlotSegs(slotEvents), modifiedEventId);
 	}
 	
 	
 	function clearEvents() {
 		getDaySegmentContainer().empty();
 		getSlotSegmentContainer().empty();
 	}

 	
 	function compileSlotSegs(events) {
 		var colCnt = getColCnt(),
 			minMinute = getMinMinute(),
 			maxMinute = getMaxMinute(),
 			d,
 			visEventEnds = $.map(events, slotEventEnd),
 			i,
 			j, seg,
 			colSegs,
 			segs = [];

 		for (i=0; i<colCnt; i++) {

 			d = cellToDate(0, i);
 			addMinutes(d, minMinute);

 			colSegs = sliceSegs(
 				events,
 				visEventEnds,
 				d,
 				addMinutes(cloneDate(d), maxMinute-minMinute)
 			);

 			colSegs = placeSlotSegs(colSegs); // returns a new order

 			for (j=0; j<colSegs.length; j++) {
 				seg = colSegs[j];
 				seg.col = i;
 				segs.push(seg);
 			}
 		}

 		return segs;
 	}


 	function sliceSegs(events, visEventEnds, start, end) {
 		var segs = [],
 			i, len=events.length, event,
 			eventStart, eventEnd,
 			segStart, segEnd,
 			isStart, isEnd;
 		for (i=0; i<len; i++) {
 			event = events[i];
 			eventStart = event.start;
 			eventEnd = visEventEnds[i];
 			if (eventEnd > start && eventStart < end) {
 				if (eventStart < start) {
 					segStart = cloneDate(start);
 					isStart = false;
 				}else{
 					segStart = eventStart;
 					isStart = true;
 				}
 				if (eventEnd > end) {
 					segEnd = cloneDate(end);
 					isEnd = false;
 				}else{
 					segEnd = eventEnd;
 					isEnd = true;
 				}
 				segs.push({
 					event: event,
 					start: segStart,
 					end: segEnd,
 					isStart: isStart,
 					isEnd: isEnd
 				});
 			}
 		}
 		return segs.sort(compareSlotSegs);
 	}


 	function slotEventEnd(event) {
 		if (event.end) {
 			return cloneDate(event.end);
 		}else{
 			return addMinutes(cloneDate(event.start), opt('defaultEventMinutes'));
 		}
 	}
 	
 	
 	// renders events in the 'time slots' at the bottom
 	// TODO: when we refactor this, when user returns `false` eventRender, don't have empty space
 	// TODO: refactor will include using pixels to detect collisions instead of dates (handy for seg cmp)
 	
 	function renderSlotSegs(segs, modifiedEventId) {
 	
 		var i, segCnt=segs.length, seg,
 			event,
 			top,
 			bottom,
 			columnLeft,
 			columnRight,
 			columnWidth,
 			width,
 			left,
 			right,
 			html = '',
 			eventElements,
 			eventElement,
 			triggerRes,
 			titleElement,
 			height,
 			slotSegmentContainer = getSlotSegmentContainer(),
 			isRTL = opt('isRTL');
 			
 		// calculate position/dimensions, create html
 		for (i=0; i<segCnt; i++) {
 			seg = segs[i];
 			event = seg.event;
 			top = timePosition(seg.start, seg.start);
 			bottom = timePosition(seg.start, seg.end);
 			columnLeft = colContentLeft(seg.col);
 			columnRight = colContentRight(seg.col);
 			columnWidth = columnRight - columnLeft;

 			// shave off space on right near scrollbars (2.5%)
 			// TODO: move this to CSS somehow
 			columnRight -= columnWidth * .025;
 			columnWidth = columnRight - columnLeft;

 			width = columnWidth * (seg.forwardCoord - seg.backwardCoord);

 			if (opt('slotEventOverlap')) {
 				// double the width while making sure resize handle is visible
 				// (assumed to be 20px wide)
 				width = Math.max(
 					(width - (20/2)) * 2,
 					width // narrow columns will want to make the segment smaller than
 						// the natural width. don't allow it
 				);
 			}

 			if (isRTL) {
 				right = columnRight - seg.backwardCoord * columnWidth;
 				left = right - width;
 			}
 			else {
 				left = columnLeft + seg.backwardCoord * columnWidth;
 				right = left + width;
 			}

 			// make sure horizontal coordinates are in bounds
 			left = Math.max(left, columnLeft);
 			right = Math.min(right, columnRight);
 			width = right - left;

 			seg.top = top;
 			seg.left = left;
 			seg.outerWidth = width;
 			seg.outerHeight = bottom - top;
 			html += slotSegHtml(event, seg);
 		}

 		slotSegmentContainer[0].innerHTML = html; // faster than html()
 		eventElements = slotSegmentContainer.children();
 		
 		// retrieve elements, run through eventRender callback, bind event handlers
 		for (i=0; i<segCnt; i++) {
 			seg = segs[i];
 			event = seg.event;
 			eventElement = $(eventElements[i]); // faster than eq()
 			triggerRes = trigger('eventRender', event, event, eventElement);
 			if (triggerRes === false) {
 				eventElement.remove();
 			}else{
 				if (triggerRes && triggerRes !== true) {
 					eventElement.remove();
 					eventElement = $(triggerRes)
 						.css({
 							position: 'absolute',
 							top: seg.top,
 							left: seg.left
 						})
 						.appendTo(slotSegmentContainer);
 				}
 				seg.element = eventElement;
 				if (event._id === modifiedEventId) {
 					bindSlotSeg(event, eventElement, seg);
 				}else{
 					eventElement[0]._fci = i; // for lazySegBind
 				}
 				reportEventElement(event, eventElement);
 			}
 		}
 		
 		lazySegBind(slotSegmentContainer, segs, bindSlotSeg);
 		
 		// record event sides and title positions
 		for (i=0; i<segCnt; i++) {
 			seg = segs[i];
 			if (eventElement = seg.element) {
 				seg.vsides = vsides(eventElement, true);
 				seg.hsides = hsides(eventElement, true);
 				titleElement = eventElement.find('.fc-event-title');
 				if (titleElement.length) {
 					seg.contentTop = titleElement[0].offsetTop;
 				}
 			}
 		}
 		
 		// set all positions/dimensions at once
 		for (i=0; i<segCnt; i++) {
 			seg = segs[i];
 			if (eventElement = seg.element) {
 				eventElement[0].style.width = Math.max(0, seg.outerWidth - seg.hsides) + 'px';
 				height = Math.max(0, seg.outerHeight - seg.vsides);
 				eventElement[0].style.height = height + 'px';
 				event = seg.event;
 				if (seg.contentTop !== undefined && height - seg.contentTop < 10) {
 					// not enough room for title, put it in the time (TODO: maybe make both display:inline instead)
 					eventElement.find('div.fc-event-time')
 						.text(formatDate(event.start, opt('timeFormat')) + ' - ' + event.title);
 					eventElement.find('div.fc-event-title')
 						.remove();
 				}
 				trigger('eventAfterRender', event, event, eventElement);
 			}
 		}
 					
 	}
 	
 	
 	function slotSegHtml(event, seg) {
 		var html = "<";
 		var url = event.url;
 		var skinCss = getSkinCss(event, opt);
 		var classes = ['fc-event', 'fc-event-vert'];
 		if (isEventDraggable(event)) {
 			classes.push('fc-event-draggable');
 		}
 		if (seg.isStart) {
 			classes.push('fc-event-start');
 		}
 		if (seg.isEnd) {
 			classes.push('fc-event-end');
 		}
 		classes = classes.concat(event.className);
 		if (event.source) {
 			classes = classes.concat(event.source.className || []);
 		}
 		if (url) {
 			html += "a href='" + htmlEscape(event.url) + "'";
 		}else{
 			html += "div";
 		}
 		html +=
 			" class='" + classes.join(' ') + "'" +
 			" style=" +
 				"'" +
 				"position:absolute;" +
 				"top:" + seg.top + "px;" +
 				"left:" + seg.left + "px;" +
 				skinCss +
 				"'" +
 			">" +
 			"<div class='fc-event-inner'>" +
 			"<div class='fc-event-time'>" +
 			htmlEscape(formatDates(event.start, event.end, opt('timeFormat'))) +
 			"</div>" +
 			"<div class='fc-event-title'>" +
 			htmlEscape(event.title || '') +
 			"</div>" +
 			"</div>" +
 			"<div class='fc-event-bg'></div>";
 		if (seg.isEnd && isEventResizable(event)) {
 			html +=
 				"<div class='ui-resizable-handle ui-resizable-s'>=</div>";
 		}
 		html +=
 			"</" + (url ? "a" : "div") + ">";
 		return html;
 	}
 	
 	
 	function bindSlotSeg(event, eventElement, seg) {
 		var timeElement = eventElement.find('div.fc-event-time');
 		if (isEventDraggable(event)) {
 			draggableSlotEvent(event, eventElement, timeElement);
 		}
 		if (seg.isEnd && isEventResizable(event)) {
 			resizableSlotEvent(event, eventElement, timeElement);
 		}
 		eventElementHandlers(event, eventElement);
 	}
 	
 	
 	
 	/* Dragging
 	-----------------------------------------------------------------------------------*/
 	
 	
 	// when event starts out FULL-DAY
 	// overrides DayEventRenderer's version because it needs to account for dragging elements
 	// to and from the slot area.
 	
 	function draggableDayEvent(event, eventElement, seg) {
 		var isStart = seg.isStart;
 		var origWidth;
 		var revert;
 		var allDay = true;
 		var dayDelta;
 		var hoverListener = getHoverListener();
 		var colWidth = getColWidth();
 		var snapHeight = getSnapHeight();
 		var snapMinutes = getSnapMinutes();
 		var minMinute = getMinMinute();
 		eventElement.draggable({
 			opacity: opt('dragOpacity', 'month'), // use whatever the month view was using
 			revertDuration: opt('dragRevertDuration'),
 			start: function(ev, ui) {
 				trigger('eventDragStart', eventElement, event, ev, ui);
 				hideEvents(event, eventElement);
 				origWidth = eventElement.width();
 				hoverListener.start(function(cell, origCell) {
 					clearOverlays();
 					if (cell) {
 						revert = false;
 						var origDate = cellToDate(0, origCell.col);
 						var date = cellToDate(0, cell.col);
 						dayDelta = dayDiff(date, origDate);
 						if (!cell.row) {
 							// on full-days
 							renderDayOverlay(
 								addDays(cloneDate(event.start), dayDelta),
 								addDays(exclEndDay(event), dayDelta)
 							);
 							resetElement();
 						}else{
 							// mouse is over bottom slots
 							if (isStart) {
 								if (allDay) {
 									// convert event to temporary slot-event
 									eventElement.width(colWidth - 10); // don't use entire width
 									setOuterHeight(
 										eventElement,
 										snapHeight * Math.round(
 											(event.end ? ((event.end - event.start) / MINUTE_MS) : opt('defaultEventMinutes')) /
 												snapMinutes
 										)
 									);
 									eventElement.draggable('option', 'grid', [colWidth, 1]);
 									allDay = false;
 								}
 							}else{
 								revert = true;
 							}
 						}
 						revert = revert || (allDay && !dayDelta);
 					}else{
 						resetElement();
 						revert = true;
 					}
 					eventElement.draggable('option', 'revert', revert);
 				}, ev, 'drag');
 			},
 			stop: function(ev, ui) {
 				hoverListener.stop();
 				clearOverlays();
 				trigger('eventDragStop', eventElement, event, ev, ui);
 				if (revert) {
 					// hasn't moved or is out of bounds (draggable has already reverted)
 					resetElement();
 					eventElement.css('filter', ''); // clear IE opacity side-effects
 					showEvents(event, eventElement);
 				}else{
 					// changed!
 					var minuteDelta = 0;
 					if (!allDay) {
 						minuteDelta = Math.round((eventElement.offset().top - getSlotContainer().offset().top) / snapHeight)
 							* snapMinutes
 							+ minMinute
 							- (event.start.getHours() * 60 + event.start.getMinutes());
 					}
 					eventDrop(this, event, dayDelta, minuteDelta, allDay, ev, ui);
 				}
 			}
 		});
 		function resetElement() {
 			if (!allDay) {
 				eventElement
 					.width(origWidth)
 					.height('')
 					.draggable('option', 'grid', null);
 				allDay = true;
 			}
 		}
 	}
 	
 	
 	// when event starts out IN TIMESLOTS
 	
 	function draggableSlotEvent(event, eventElement, timeElement) {
 		var coordinateGrid = t.getCoordinateGrid();
 		var colCnt = getColCnt();
 		var colWidth = getColWidth();
 		var snapHeight = getSnapHeight();
 		var snapMinutes = getSnapMinutes();

 		// states
 		var origPosition; // original position of the element, not the mouse
 		var origCell;
 		var isInBounds, prevIsInBounds;
 		var isAllDay, prevIsAllDay;
 		var colDelta, prevColDelta;
 		var dayDelta; // derived from colDelta
 		var minuteDelta, prevMinuteDelta;

 		eventElement.draggable({
 			scroll: false,
 			grid: [ colWidth, snapHeight ],
 			axis: colCnt==1 ? 'y' : false,
 			opacity: opt('dragOpacity'),
 			revertDuration: opt('dragRevertDuration'),
 			start: function(ev, ui) {

 				trigger('eventDragStart', eventElement, event, ev, ui);
 				hideEvents(event, eventElement);

 				coordinateGrid.build();

 				// initialize states
 				origPosition = eventElement.position();
 				origCell = coordinateGrid.cell(ev.pageX, ev.pageY);
 				isInBounds = prevIsInBounds = true;
 				isAllDay = prevIsAllDay = getIsCellAllDay(origCell);
 				colDelta = prevColDelta = 0;
 				dayDelta = 0;
 				minuteDelta = prevMinuteDelta = 0;

 			},
 			drag: function(ev, ui) {

 				// NOTE: this `cell` value is only useful for determining in-bounds and all-day.
 				// Bad for anything else due to the discrepancy between the mouse position and the
 				// element position while snapping. (problem revealed in PR #55)
 				//
 				// PS- the problem exists for draggableDayEvent() when dragging an all-day event to a slot event.
 				// We should overhaul the dragging system and stop relying on jQuery UI.
 				var cell = coordinateGrid.cell(ev.pageX, ev.pageY);

 				// update states
 				isInBounds = !!cell;
 				if (isInBounds) {
 					isAllDay = getIsCellAllDay(cell);

 					// calculate column delta
 					colDelta = Math.round((ui.position.left - origPosition.left) / colWidth);
 					if (colDelta != prevColDelta) {
 						// calculate the day delta based off of the original clicked column and the column delta
 						var origDate = cellToDate(0, origCell.col);
 						var col = origCell.col + colDelta;
 						col = Math.max(0, col);
 						col = Math.min(colCnt-1, col);
 						var date = cellToDate(0, col);
 						dayDelta = dayDiff(date, origDate);
 					}

 					// calculate minute delta (only if over slots)
 					if (!isAllDay) {
 						minuteDelta = Math.round((ui.position.top - origPosition.top) / snapHeight) * snapMinutes;
 					}
 				}

 				// any state changes?
 				if (
 					isInBounds != prevIsInBounds ||
 					isAllDay != prevIsAllDay ||
 					colDelta != prevColDelta ||
 					minuteDelta != prevMinuteDelta
 				) {

 					updateUI();

 					// update previous states for next time
 					prevIsInBounds = isInBounds;
 					prevIsAllDay = isAllDay;
 					prevColDelta = colDelta;
 					prevMinuteDelta = minuteDelta;
 				}

 				// if out-of-bounds, revert when done, and vice versa.
 				eventElement.draggable('option', 'revert', !isInBounds);

 			},
 			stop: function(ev, ui) {

 				clearOverlays();
 				trigger('eventDragStop', eventElement, event, ev, ui);

 				if (isInBounds && (isAllDay || dayDelta || minuteDelta)) { // changed!
 					eventDrop(this, event, dayDelta, isAllDay ? 0 : minuteDelta, isAllDay, ev, ui);
 				}
 				else { // either no change or out-of-bounds (draggable has already reverted)

 					// reset states for next time, and for updateUI()
 					isInBounds = true;
 					isAllDay = false;
 					colDelta = 0;
 					dayDelta = 0;
 					minuteDelta = 0;

 					updateUI();
 					eventElement.css('filter', ''); // clear IE opacity side-effects

 					// sometimes fast drags make event revert to wrong position, so reset.
 					// also, if we dragged the element out of the area because of snapping,
 					// but the *mouse* is still in bounds, we need to reset the position.
 					eventElement.css(origPosition);

 					showEvents(event, eventElement);
 				}
 			}
 		});

 		function updateUI() {
 			clearOverlays();
 			if (isInBounds) {
 				if (isAllDay) {
 					timeElement.hide();
 					eventElement.draggable('option', 'grid', null); // disable grid snapping
 					renderDayOverlay(
 						addDays(cloneDate(event.start), dayDelta),
 						addDays(exclEndDay(event), dayDelta)
 					);
 				}
 				else {
 					updateTimeText(minuteDelta);
 					timeElement.css('display', ''); // show() was causing display=inline
 					eventElement.draggable('option', 'grid', [colWidth, snapHeight]); // re-enable grid snapping
 				}
 			}
 		}

 		function updateTimeText(minuteDelta) {
 			var newStart = addMinutes(cloneDate(event.start), minuteDelta);
 			var newEnd;
 			if (event.end) {
 				newEnd = addMinutes(cloneDate(event.end), minuteDelta);
 			}
 			timeElement.text(formatDates(newStart, newEnd, opt('timeFormat')));
 		}

 	}
 	
 	
 	
 	/* Resizing
 	--------------------------------------------------------------------------------------*/
 	
 	
 	function resizableSlotEvent(event, eventElement, timeElement) {
 		var snapDelta, prevSnapDelta;
 		var snapHeight = getSnapHeight();
 		var snapMinutes = getSnapMinutes();
 		eventElement.resizable({
 			handles: {
 				s: '.ui-resizable-handle'
 			},
 			grid: snapHeight,
 			start: function(ev, ui) {
 				snapDelta = prevSnapDelta = 0;
 				hideEvents(event, eventElement);
 				trigger('eventResizeStart', this, event, ev, ui);
 			},
 			resize: function(ev, ui) {
 				// don't rely on ui.size.height, doesn't take grid into account
 				snapDelta = Math.round((Math.max(snapHeight, eventElement.height()) - ui.originalSize.height) / snapHeight);
 				if (snapDelta != prevSnapDelta) {
 					timeElement.text(
 						formatDates(
 							event.start,
 							(!snapDelta && !event.end) ? null : // no change, so don't display time range
 								addMinutes(eventEnd(event), snapMinutes*snapDelta),
 							opt('timeFormat')
 						)
 					);
 					prevSnapDelta = snapDelta;
 				}
 			},
 			stop: function(ev, ui) {
 				trigger('eventResizeStop', this, event, ev, ui);
 				if (snapDelta) {
 					eventResize(this, event, 0, snapMinutes*snapDelta, ev, ui);
 				}else{
 					showEvents(event, eventElement);
 					// BUG: if event was really short, need to put title back in span
 				}
 			}
 		});
 	}
 	

 }



 /* Agenda Event Segment Utilities
 -----------------------------------------------------------------------------*/


 // Sets the seg.backwardCoord and seg.forwardCoord on each segment and returns a new
 // list in the order they should be placed into the DOM (an implicit z-index).
 function placeSlotSegs(segs) {
 	var levels = buildSlotSegLevels(segs);
 	var level0 = levels[0];
 	var i;

 	computeForwardSlotSegs(levels);

 	if (level0) {

 		for (i=0; i<level0.length; i++) {
 			computeSlotSegPressures(level0[i]);
 		}

 		for (i=0; i<level0.length; i++) {
 			computeSlotSegCoords(level0[i], 0, 0);
 		}
 	}

 	return flattenSlotSegLevels(levels);
 }


 // Builds an array of segments "levels". The first level will be the leftmost tier of segments
 // if the calendar is left-to-right, or the rightmost if the calendar is right-to-left.
 function buildSlotSegLevels(segs) {
 	var levels = [];
 	var i, seg;
 	var j;

 	for (i=0; i<segs.length; i++) {
 		seg = segs[i];

 		// go through all the levels and stop on the first level where there are no collisions
 		for (j=0; j<levels.length; j++) {
 			if (!computeSlotSegCollisions(seg, levels[j]).length) {
 				break;
 			}
 		}

 		(levels[j] || (levels[j] = [])).push(seg);
 	}

 	return levels;
 }


 // For every segment, figure out the other segments that are in subsequent
 // levels that also occupy the same vertical space. Accumulate in seg.forwardSegs
 function computeForwardSlotSegs(levels) {
 	var i, level;
 	var j, seg;
 	var k;

 	for (i=0; i<levels.length; i++) {
 		level = levels[i];

 		for (j=0; j<level.length; j++) {
 			seg = level[j];

 			seg.forwardSegs = [];
 			for (k=i+1; k<levels.length; k++) {
 				computeSlotSegCollisions(seg, levels[k], seg.forwardSegs);
 			}
 		}
 	}
 }


 // Figure out which path forward (via seg.forwardSegs) results in the longest path until
 // the furthest edge is reached. The number of segments in this path will be seg.forwardPressure
 function computeSlotSegPressures(seg) {
 	var forwardSegs = seg.forwardSegs;
 	var forwardPressure = 0;
 	var i, forwardSeg;

 	if (seg.forwardPressure === undefined) { // not already computed

 		for (i=0; i<forwardSegs.length; i++) {
 			forwardSeg = forwardSegs[i];

 			// figure out the child's maximum forward path
 			computeSlotSegPressures(forwardSeg);

 			// either use the existing maximum, or use the child's forward pressure
 			// plus one (for the forwardSeg itself)
 			forwardPressure = Math.max(
 				forwardPressure,
 				1 + forwardSeg.forwardPressure
 			);
 		}

 		seg.forwardPressure = forwardPressure;
 	}
 }


 // Calculate seg.forwardCoord and seg.backwardCoord for the segment, where both values range
 // from 0 to 1. If the calendar is left-to-right, the seg.backwardCoord maps to "left" and
 // seg.forwardCoord maps to "right" (via percentage). Vice-versa if the calendar is right-to-left.
 //
 // The segment might be part of a "series", which means consecutive segments with the same pressure
 // who's width is unknown until an edge has been hit. `seriesBackwardPressure` is the number of
 // segments behind this one in the current series, and `seriesBackwardCoord` is the starting
 // coordinate of the first segment in the series.
 function computeSlotSegCoords(seg, seriesBackwardPressure, seriesBackwardCoord) {
 	var forwardSegs = seg.forwardSegs;
 	var i;

 	if (seg.forwardCoord === undefined) { // not already computed

 		if (!forwardSegs.length) {

 			// if there are no forward segments, this segment should butt up against the edge
 			seg.forwardCoord = 1;
 		}
 		else {

 			// sort highest pressure first
 			forwardSegs.sort(compareForwardSlotSegs);

 			// this segment's forwardCoord will be calculated from the backwardCoord of the
 			// highest-pressure forward segment.
 			computeSlotSegCoords(forwardSegs[0], seriesBackwardPressure + 1, seriesBackwardCoord);
 			seg.forwardCoord = forwardSegs[0].backwardCoord;
 		}

 		// calculate the backwardCoord from the forwardCoord. consider the series
 		seg.backwardCoord = seg.forwardCoord -
 			(seg.forwardCoord - seriesBackwardCoord) / // available width for series
 			(seriesBackwardPressure + 1); // # of segments in the series

 		// use this segment's coordinates to computed the coordinates of the less-pressurized
 		// forward segments
 		for (i=0; i<forwardSegs.length; i++) {
 			computeSlotSegCoords(forwardSegs[i], 0, seg.forwardCoord);
 		}
 	}
 }


 // Outputs a flat array of segments, from lowest to highest level
 function flattenSlotSegLevels(levels) {
 	var segs = [];
 	var i, level;
 	var j;

 	for (i=0; i<levels.length; i++) {
 		level = levels[i];

 		for (j=0; j<level.length; j++) {
 			segs.push(level[j]);
 		}
 	}

 	return segs;
 }


 // Find all the segments in `otherSegs` that vertically collide with `seg`.
 // Append into an optionally-supplied `results` array and return.
 function computeSlotSegCollisions(seg, otherSegs, results) {
 	results = results || [];

 	for (var i=0; i<otherSegs.length; i++) {
 		if (isSlotSegCollision(seg, otherSegs[i])) {
 			results.push(otherSegs[i]);
 		}
 	}

 	return results;
 }


 // Do these segments occupy the same vertical space?
 function isSlotSegCollision(seg1, seg2) {
 	return seg1.end > seg2.start && seg1.start < seg2.end;
 }


 // A cmp function for determining which forward segment to rely on more when computing coordinates.
 function compareForwardSlotSegs(seg1, seg2) {
 	// put higher-pressure first
 	return seg2.forwardPressure - seg1.forwardPressure ||
 		// put segments that are closer to initial edge first (and favor ones with no coords yet)
 		(seg1.backwardCoord || 0) - (seg2.backwardCoord || 0) ||
 		// do normal sorting...
 		compareSlotSegs(seg1, seg2);
 }


 // A cmp function for determining which segment should be closer to the initial edge
 // (the left edge on a left-to-right calendar).
 function compareSlotSegs(seg1, seg2) {
 	return seg1.start - seg2.start || // earlier start time goes first
 		(seg2.end - seg2.start) - (seg1.end - seg1.start) || // tie? longer-duration goes first
 		(seg1.event.title || '').localeCompare(seg2.event.title); // tie? alphabetically by title
 }


 ;;


 function View(element, calendar, viewName) {
 	var t = this;
 	
 	
 	// exports
 	t.element = element;
 	t.calendar = calendar;
 	t.name = viewName;
 	t.opt = opt;
 	t.trigger = trigger;
 	t.isEventDraggable = isEventDraggable;
 	t.isEventResizable = isEventResizable;
 	t.setEventData = setEventData;
 	t.clearEventData = clearEventData;
 	t.eventEnd = eventEnd;
 	t.reportEventElement = reportEventElement;
 	t.triggerEventDestroy = triggerEventDestroy;
 	t.eventElementHandlers = eventElementHandlers;
 	t.showEvents = showEvents;
 	t.hideEvents = hideEvents;
 	t.eventDrop = eventDrop;
 	t.eventResize = eventResize;
 	// t.title
 	// t.start, t.end
 	// t.visStart, t.visEnd
 	
 	
 	// imports
 	var defaultEventEnd = t.defaultEventEnd;
 	var normalizeEvent = calendar.normalizeEvent; // in EventManager
 	var reportEventChange = calendar.reportEventChange;
 	
 	
 	// locals
 	var eventsByID = {}; // eventID mapped to array of events (there can be multiple b/c of repeating events)
 	var eventElementsByID = {}; // eventID mapped to array of jQuery elements
 	var eventElementCouples = []; // array of objects, { event, element } // TODO: unify with segment system
 	var options = calendar.options;
 	
 	
 	
 	function opt(name, viewNameOverride) {
 		var v = options[name];
 		if ($.isPlainObject(v)) {
 			return smartProperty(v, viewNameOverride || viewName);
 		}
 		return v;
 	}

 	
 	function trigger(name, thisObj) {
 		return calendar.trigger.apply(
 			calendar,
 			[name, thisObj || t].concat(Array.prototype.slice.call(arguments, 2), [t])
 		);
 	}
 	


 	/* Event Editable Boolean Calculations
 	------------------------------------------------------------------------------*/

 	
 	function isEventDraggable(event) {
 		var source = event.source || {};
 		return firstDefined(
 				event.startEditable,
 				source.startEditable,
 				opt('eventStartEditable'),
 				event.editable,
 				source.editable,
 				opt('editable')
 			)
 			&& !opt('disableDragging'); // deprecated
 	}
 	
 	
 	function isEventResizable(event) { // but also need to make sure the seg.isEnd == true
 		var source = event.source || {};
 		return firstDefined(
 				event.durationEditable,
 				source.durationEditable,
 				opt('eventDurationEditable'),
 				event.editable,
 				source.editable,
 				opt('editable')
 			)
 			&& !opt('disableResizing'); // deprecated
 	}
 	
 	
 	
 	/* Event Data
 	------------------------------------------------------------------------------*/
 	
 	
 	function setEventData(events) { // events are already normalized at this point
 		eventsByID = {};
 		var i, len=events.length, event;
 		for (i=0; i<len; i++) {
 			event = events[i];
 			if (eventsByID[event._id]) {
 				eventsByID[event._id].push(event);
 			}else{
 				eventsByID[event._id] = [event];
 			}
 		}
 	}


 	function clearEventData() {
 		eventsByID = {};
 		eventElementsByID = {};
 		eventElementCouples = [];
 	}
 	
 	
 	// returns a Date object for an event's end
 	function eventEnd(event) {
 		return event.end ? cloneDate(event.end) : defaultEventEnd(event);
 	}
 	
 	
 	
 	/* Event Elements
 	------------------------------------------------------------------------------*/
 	
 	
 	// report when view creates an element for an event
 	function reportEventElement(event, element) {
 		eventElementCouples.push({ event: event, element: element });
 		if (eventElementsByID[event._id]) {
 			eventElementsByID[event._id].push(element);
 		}else{
 			eventElementsByID[event._id] = [element];
 		}
 	}


 	function triggerEventDestroy() {
 		$.each(eventElementCouples, function(i, couple) {
 			t.trigger('eventDestroy', couple.event, couple.event, couple.element);
 		});
 	}
 	
 	
 	// attaches eventClick, eventMouseover, eventMouseout
 	function eventElementHandlers(event, eventElement) {
 		eventElement
 			.click(function(ev) {
 				if (!eventElement.hasClass('ui-draggable-dragging') &&
 					!eventElement.hasClass('ui-resizable-resizing')) {
 						return trigger('eventClick', this, event, ev);
 					}
 			})
 			.hover(
 				function(ev) {
 					trigger('eventMouseover', this, event, ev);
 				},
 				function(ev) {
 					trigger('eventMouseout', this, event, ev);
 				}
 			);
 		// TODO: don't fire eventMouseover/eventMouseout *while* dragging is occuring (on subject element)
 		// TODO: same for resizing
 	}
 	
 	
 	function showEvents(event, exceptElement) {
 		eachEventElement(event, exceptElement, 'show');
 	}
 	
 	
 	function hideEvents(event, exceptElement) {
 		eachEventElement(event, exceptElement, 'hide');
 	}
 	
 	
 	function eachEventElement(event, exceptElement, funcName) {
 		// NOTE: there may be multiple events per ID (repeating events)
 		// and multiple segments per event
 		var elements = eventElementsByID[event._id],
 			i, len = elements.length;
 		for (i=0; i<len; i++) {
 			if (!exceptElement || elements[i][0] != exceptElement[0]) {
 				elements[i][funcName]();
 			}
 		}
 	}
 	
 	
 	
 	/* Event Modification Reporting
 	---------------------------------------------------------------------------------*/
 	
 	
 	function eventDrop(e, event, dayDelta, minuteDelta, allDay, ev, ui) {
 		var oldAllDay = event.allDay;
 		var eventId = event._id;
 		moveEvents(eventsByID[eventId], dayDelta, minuteDelta, allDay);
 		trigger(
 			'eventDrop',
 			e,
 			event,
 			dayDelta,
 			minuteDelta,
 			allDay,
 			function() {
 				// TODO: investigate cases where this inverse technique might not work
 				moveEvents(eventsByID[eventId], -dayDelta, -minuteDelta, oldAllDay);
 				reportEventChange(eventId);
 			},
 			ev,
 			ui
 		);
 		reportEventChange(eventId);
 	}
 	
 	
 	function eventResize(e, event, dayDelta, minuteDelta, ev, ui) {
 		var eventId = event._id;
 		elongateEvents(eventsByID[eventId], dayDelta, minuteDelta);
 		trigger(
 			'eventResize',
 			e,
 			event,
 			dayDelta,
 			minuteDelta,
 			function() {
 				// TODO: investigate cases where this inverse technique might not work
 				elongateEvents(eventsByID[eventId], -dayDelta, -minuteDelta);
 				reportEventChange(eventId);
 			},
 			ev,
 			ui
 		);
 		reportEventChange(eventId);
 	}
 	
 	
 	
 	/* Event Modification Math
 	---------------------------------------------------------------------------------*/
 	
 	
 	function moveEvents(events, dayDelta, minuteDelta, allDay) {
 		minuteDelta = minuteDelta || 0;
 		for (var e, len=events.length, i=0; i<len; i++) {
 			e = events[i];
 			if (allDay !== undefined) {
 				e.allDay = allDay;
 			}
 			addMinutes(addDays(e.start, dayDelta, true), minuteDelta);
 			if (e.end) {
 				e.end = addMinutes(addDays(e.end, dayDelta, true), minuteDelta);
 			}
 			normalizeEvent(e, options);
 		}
 	}
 	
 	
 	function elongateEvents(events, dayDelta, minuteDelta) {
 		minuteDelta = minuteDelta || 0;
 		for (var e, len=events.length, i=0; i<len; i++) {
 			e = events[i];
 			e.end = addMinutes(addDays(eventEnd(e), dayDelta, true), minuteDelta);
 			normalizeEvent(e, options);
 		}
 	}



 	// ====================================================================================================
 	// Utilities for day "cells"
 	// ====================================================================================================
 	// The "basic" views are completely made up of day cells.
 	// The "agenda" views have day cells at the top "all day" slot.
 	// This was the obvious common place to put these utilities, but they should be abstracted out into
 	// a more meaningful class (like DayEventRenderer).
 	// ====================================================================================================


 	// For determining how a given "cell" translates into a "date":
 	//
 	// 1. Convert the "cell" (row and column) into a "cell offset" (the # of the cell, cronologically from the first).
 	//    Keep in mind that column indices are inverted with isRTL. This is taken into account.
 	//
 	// 2. Convert the "cell offset" to a "day offset" (the # of days since the first visible day in the view).
 	//
 	// 3. Convert the "day offset" into a "date" (a JavaScript Date object).
 	//
 	// The reverse transformation happens when transforming a date into a cell.


 	// exports
 	t.isHiddenDay = isHiddenDay;
 	t.skipHiddenDays = skipHiddenDays;
 	t.getCellsPerWeek = getCellsPerWeek;
 	t.dateToCell = dateToCell;
 	t.dateToDayOffset = dateToDayOffset;
 	t.dayOffsetToCellOffset = dayOffsetToCellOffset;
 	t.cellOffsetToCell = cellOffsetToCell;
 	t.cellToDate = cellToDate;
 	t.cellToCellOffset = cellToCellOffset;
 	t.cellOffsetToDayOffset = cellOffsetToDayOffset;
 	t.dayOffsetToDate = dayOffsetToDate;
 	t.rangeToSegments = rangeToSegments;


 	// internals
 	var hiddenDays = opt('hiddenDays') || []; // array of day-of-week indices that are hidden
 	var isHiddenDayHash = []; // is the day-of-week hidden? (hash with day-of-week-index -> bool)
 	var cellsPerWeek;
 	var dayToCellMap = []; // hash from dayIndex -> cellIndex, for one week
 	var cellToDayMap = []; // hash from cellIndex -> dayIndex, for one week
 	var isRTL = opt('isRTL');


 	// initialize important internal variables
 	(function() {

 		if (opt('weekends') === false) {
 			hiddenDays.push(0, 6); // 0=sunday, 6=saturday
 		}

 		// Loop through a hypothetical week and determine which
 		// days-of-week are hidden. Record in both hashes (one is the reverse of the other).
 		for (var dayIndex=0, cellIndex=0; dayIndex<7; dayIndex++) {
 			dayToCellMap[dayIndex] = cellIndex;
 			isHiddenDayHash[dayIndex] = $.inArray(dayIndex, hiddenDays) != -1;
 			if (!isHiddenDayHash[dayIndex]) {
 				cellToDayMap[cellIndex] = dayIndex;
 				cellIndex++;
 			}
 		}

 		cellsPerWeek = cellIndex;
 		if (!cellsPerWeek) {
 			throw 'invalid hiddenDays'; // all days were hidden? bad.
 		}

 	})();


 	// Is the current day hidden?
 	// `day` is a day-of-week index (0-6), or a Date object
 	function isHiddenDay(day) {
 		if (typeof day == 'object') {
 			day = day.getDay();
 		}
 		return isHiddenDayHash[day];
 	}


 	function getCellsPerWeek() {
 		return cellsPerWeek;
 	}


 	// Keep incrementing the current day until it is no longer a hidden day.
 	// If the initial value of `date` is not a hidden day, don't do anything.
 	// Pass `isExclusive` as `true` if you are dealing with an end date.
 	// `inc` defaults to `1` (increment one day forward each time)
 	function skipHiddenDays(date, inc, isExclusive) {
 		inc = inc || 1;
 		while (
 			isHiddenDayHash[ ( date.getDay() + (isExclusive ? inc : 0) + 7 ) % 7 ]
 		) {
 			addDays(date, inc);
 		}
 	}


 	//
 	// TRANSFORMATIONS: cell -> cell offset -> day offset -> date
 	//

 	// cell -> date (combines all transformations)
 	// Possible arguments:
 	// - row, col
 	// - { row:#, col: # }
 	function cellToDate() {
 		var cellOffset = cellToCellOffset.apply(null, arguments);
 		var dayOffset = cellOffsetToDayOffset(cellOffset);
 		var date = dayOffsetToDate(dayOffset);
 		return date;
 	}

 	// cell -> cell offset
 	// Possible arguments:
 	// - row, col
 	// - { row:#, col:# }
 	function cellToCellOffset(row, col) {
 		var colCnt = t.getColCnt();

 		// rtl variables. wish we could pre-populate these. but where?
 		var dis = isRTL ? -1 : 1;
 		var dit = isRTL ? colCnt - 1 : 0;

 		if (typeof row == 'object') {
 			col = row.col;
 			row = row.row;
 		}
 		var cellOffset = row * colCnt + (col * dis + dit); // column, adjusted for RTL (dis & dit)

 		return cellOffset;
 	}

 	// cell offset -> day offset
 	function cellOffsetToDayOffset(cellOffset) {
 		var day0 = t.visStart.getDay(); // first date's day of week
 		cellOffset += dayToCellMap[day0]; // normlize cellOffset to beginning-of-week
 		return Math.floor(cellOffset / cellsPerWeek) * 7 // # of days from full weeks
 			+ cellToDayMap[ // # of days from partial last week
 				(cellOffset % cellsPerWeek + cellsPerWeek) % cellsPerWeek // crazy math to handle negative cellOffsets
 			]
 			- day0; // adjustment for beginning-of-week normalization
 	}

 	// day offset -> date (JavaScript Date object)
 	function dayOffsetToDate(dayOffset) {
 		var date = cloneDate(t.visStart);
 		addDays(date, dayOffset);
 		return date;
 	}


 	//
 	// TRANSFORMATIONS: date -> day offset -> cell offset -> cell
 	//

 	// date -> cell (combines all transformations)
 	function dateToCell(date) {
 		var dayOffset = dateToDayOffset(date);
 		var cellOffset = dayOffsetToCellOffset(dayOffset);
 		var cell = cellOffsetToCell(cellOffset);
 		return cell;
 	}

 	// date -> day offset
 	function dateToDayOffset(date) {
 		return dayDiff(date, t.visStart);
 	}

 	// day offset -> cell offset
 	function dayOffsetToCellOffset(dayOffset) {
 		var day0 = t.visStart.getDay(); // first date's day of week
 		dayOffset += day0; // normalize dayOffset to beginning-of-week
 		return Math.floor(dayOffset / 7) * cellsPerWeek // # of cells from full weeks
 			+ dayToCellMap[ // # of cells from partial last week
 				(dayOffset % 7 + 7) % 7 // crazy math to handle negative dayOffsets
 			]
 			- dayToCellMap[day0]; // adjustment for beginning-of-week normalization
 	}

 	// cell offset -> cell (object with row & col keys)
 	function cellOffsetToCell(cellOffset) {
 		var colCnt = t.getColCnt();

 		// rtl variables. wish we could pre-populate these. but where?
 		var dis = isRTL ? -1 : 1;
 		var dit = isRTL ? colCnt - 1 : 0;

 		var row = Math.floor(cellOffset / colCnt);
 		var col = ((cellOffset % colCnt + colCnt) % colCnt) * dis + dit; // column, adjusted for RTL (dis & dit)
 		return {
 			row: row,
 			col: col
 		};
 	}


 	//
 	// Converts a date range into an array of segment objects.
 	// "Segments" are horizontal stretches of time, sliced up by row.
 	// A segment object has the following properties:
 	// - row
 	// - cols
 	// - isStart
 	// - isEnd
 	//
 	function rangeToSegments(startDate, endDate) {
 		var rowCnt = t.getRowCnt();
 		var colCnt = t.getColCnt();
 		var segments = []; // array of segments to return

 		// day offset for given date range
 		var rangeDayOffsetStart = dateToDayOffset(startDate);
 		var rangeDayOffsetEnd = dateToDayOffset(endDate); // exclusive

 		// first and last cell offset for the given date range
 		// "last" implies inclusivity
 		var rangeCellOffsetFirst = dayOffsetToCellOffset(rangeDayOffsetStart);
 		var rangeCellOffsetLast = dayOffsetToCellOffset(rangeDayOffsetEnd) - 1;

 		// loop through all the rows in the view
 		for (var row=0; row<rowCnt; row++) {

 			// first and last cell offset for the row
 			var rowCellOffsetFirst = row * colCnt;
 			var rowCellOffsetLast = rowCellOffsetFirst + colCnt - 1;

 			// get the segment's cell offsets by constraining the range's cell offsets to the bounds of the row
 			var segmentCellOffsetFirst = Math.max(rangeCellOffsetFirst, rowCellOffsetFirst);
 			var segmentCellOffsetLast = Math.min(rangeCellOffsetLast, rowCellOffsetLast);

 			// make sure segment's offsets are valid and in view
 			if (segmentCellOffsetFirst <= segmentCellOffsetLast) {

 				// translate to cells
 				var segmentCellFirst = cellOffsetToCell(segmentCellOffsetFirst);
 				var segmentCellLast = cellOffsetToCell(segmentCellOffsetLast);

 				// view might be RTL, so order by leftmost column
 				var cols = [ segmentCellFirst.col, segmentCellLast.col ].sort();

 				// Determine if segment's first/last cell is the beginning/end of the date range.
 				// We need to compare "day offset" because "cell offsets" are often ambiguous and
 				// can translate to multiple days, and an edge case reveals itself when we the
 				// range's first cell is hidden (we don't want isStart to be true).
 				var isStart = cellOffsetToDayOffset(segmentCellOffsetFirst) == rangeDayOffsetStart;
 				var isEnd = cellOffsetToDayOffset(segmentCellOffsetLast) + 1 == rangeDayOffsetEnd; // +1 for comparing exclusively

 				segments.push({
 					row: row,
 					leftCol: cols[0],
 					rightCol: cols[1],
 					isStart: isStart,
 					isEnd: isEnd
 				});
 			}
 		}

 		return segments;
 	}
 	

 }

 ;;

 function DayEventRenderer() {
 	var t = this;

 	
 	// exports
 	t.renderDayEvents = renderDayEvents;
 	t.draggableDayEvent = draggableDayEvent; // made public so that subclasses can override
 	t.resizableDayEvent = resizableDayEvent; // "
 	
 	
 	// imports
 	var opt = t.opt;
 	var trigger = t.trigger;
 	var isEventDraggable = t.isEventDraggable;
 	var isEventResizable = t.isEventResizable;
 	var eventEnd = t.eventEnd;
 	var reportEventElement = t.reportEventElement;
 	var eventElementHandlers = t.eventElementHandlers;
 	var showEvents = t.showEvents;
 	var hideEvents = t.hideEvents;
 	var eventDrop = t.eventDrop;
 	var eventResize = t.eventResize;
 	var getRowCnt = t.getRowCnt;
 	var getColCnt = t.getColCnt;
 	var getColWidth = t.getColWidth;
 	var allDayRow = t.allDayRow; // TODO: rename
 	var colLeft = t.colLeft;
 	var colRight = t.colRight;
 	var colContentLeft = t.colContentLeft;
 	var colContentRight = t.colContentRight;
 	var dateToCell = t.dateToCell;
 	var getDaySegmentContainer = t.getDaySegmentContainer;
 	var formatDates = t.calendar.formatDates;
 	var renderDayOverlay = t.renderDayOverlay;
 	var clearOverlays = t.clearOverlays;
 	var clearSelection = t.clearSelection;
 	var getHoverListener = t.getHoverListener;
 	var rangeToSegments = t.rangeToSegments;
 	var cellToDate = t.cellToDate;
 	var cellToCellOffset = t.cellToCellOffset;
 	var cellOffsetToDayOffset = t.cellOffsetToDayOffset;
 	var dateToDayOffset = t.dateToDayOffset;
 	var dayOffsetToCellOffset = t.dayOffsetToCellOffset;


 	// Render `events` onto the calendar, attach mouse event handlers, and call the `eventAfterRender` callback for each.
 	// Mouse event will be lazily applied, except if the event has an ID of `modifiedEventId`.
 	// Can only be called when the event container is empty (because it wipes out all innerHTML).
 	function renderDayEvents(events, modifiedEventId) {

 		// do the actual rendering. Receive the intermediate "segment" data structures.
 		var segments = _renderDayEvents(
 			events,
 			false, // don't append event elements
 			true // set the heights of the rows
 		);

 		// report the elements to the View, for general drag/resize utilities
 		segmentElementEach(segments, function(segment, element) {
 			reportEventElement(segment.event, element);
 		});

 		// attach mouse handlers
 		attachHandlers(segments, modifiedEventId);

 		// call `eventAfterRender` callback for each event
 		segmentElementEach(segments, function(segment, element) {
 			trigger('eventAfterRender', segment.event, segment.event, element);
 		});
 	}


 	// Render an event on the calendar, but don't report them anywhere, and don't attach mouse handlers.
 	// Append this event element to the event container, which might already be populated with events.
 	// If an event's segment will have row equal to `adjustRow`, then explicitly set its top coordinate to `adjustTop`.
 	// This hack is used to maintain continuity when user is manually resizing an event.
 	// Returns an array of DOM elements for the event.
 	function renderTempDayEvent(event, adjustRow, adjustTop) {

 		// actually render the event. `true` for appending element to container.
 		// Recieve the intermediate "segment" data structures.
 		var segments = _renderDayEvents(
 			[ event ],
 			true, // append event elements
 			false // don't set the heights of the rows
 		);

 		var elements = [];

 		// Adjust certain elements' top coordinates
 		segmentElementEach(segments, function(segment, element) {
 			if (segment.row === adjustRow) {
 				element.css('top', adjustTop);
 			}
 			elements.push(element[0]); // accumulate DOM nodes
 		});

 		return elements;
 	}


 	// Render events onto the calendar. Only responsible for the VISUAL aspect.
 	// Not responsible for attaching handlers or calling callbacks.
 	// Set `doAppend` to `true` for rendering elements without clearing the existing container.
 	// Set `doRowHeights` to allow setting the height of each row, to compensate for vertical event overflow.
 	function _renderDayEvents(events, doAppend, doRowHeights) {

 		// where the DOM nodes will eventually end up
 		var finalContainer = getDaySegmentContainer();

 		// the container where the initial HTML will be rendered.
 		// If `doAppend`==true, uses a temporary container.
 		var renderContainer = doAppend ? $("<div/>") : finalContainer;

 		var segments = buildSegments(events);
 		var html;
 		var elements;

 		// calculate the desired `left` and `width` properties on each segment object
 		calculateHorizontals(segments);

 		// build the HTML string. relies on `left` property
 		html = buildHTML(segments);

 		// render the HTML. innerHTML is considerably faster than jQuery's .html()
 		renderContainer[0].innerHTML = html;

 		// retrieve the individual elements
 		elements = renderContainer.children();

 		// if we were appending, and thus using a temporary container,
 		// re-attach elements to the real container.
 		if (doAppend) {
 			finalContainer.append(elements);
 		}

 		// assigns each element to `segment.event`, after filtering them through user callbacks
 		resolveElements(segments, elements);

 		// Calculate the left and right padding+margin for each element.
 		// We need this for setting each element's desired outer width, because of the W3C box model.
 		// It's important we do this in a separate pass from acually setting the width on the DOM elements
 		// because alternating reading/writing dimensions causes reflow for every iteration.
 		segmentElementEach(segments, function(segment, element) {
 			segment.hsides = hsides(element, true); // include margins = `true`
 		});

 		// Set the width of each element
 		segmentElementEach(segments, function(segment, element) {
 			element.width(
 				Math.max(0, segment.outerWidth - segment.hsides)
 			);
 		});

 		// Grab each element's outerHeight (setVerticals uses this).
 		// To get an accurate reading, it's important to have each element's width explicitly set already.
 		segmentElementEach(segments, function(segment, element) {
 			segment.outerHeight = element.outerHeight(true); // include margins = `true`
 		});

 		// Set the top coordinate on each element (requires segment.outerHeight)
 		setVerticals(segments, doRowHeights);

 		return segments;
 	}


 	// Generate an array of "segments" for all events.
 	function buildSegments(events) {
 		var segments = [];
 		for (var i=0; i<events.length; i++) {
 			var eventSegments = buildSegmentsForEvent(events[i]);
 			segments.push.apply(segments, eventSegments); // append an array to an array
 		}
 		return segments;
 	}


 	// Generate an array of segments for a single event.
 	// A "segment" is the same data structure that View.rangeToSegments produces,
 	// with the addition of the `event` property being set to reference the original event.
 	function buildSegmentsForEvent(event) {
 		var startDate = event.start;
 		var endDate = exclEndDay(event);
 		var segments = rangeToSegments(startDate, endDate);
 		for (var i=0; i<segments.length; i++) {
 			segments[i].event = event;
 		}
 		return segments;
 	}


 	// Sets the `left` and `outerWidth` property of each segment.
 	// These values are the desired dimensions for the eventual DOM elements.
 	function calculateHorizontals(segments) {
 		var isRTL = opt('isRTL');
 		for (var i=0; i<segments.length; i++) {
 			var segment = segments[i];

 			// Determine functions used for calulating the elements left/right coordinates,
 			// depending on whether the view is RTL or not.
 			// NOTE:
 			// colLeft/colRight returns the coordinate butting up the edge of the cell.
 			// colContentLeft/colContentRight is indented a little bit from the edge.
 			var leftFunc = (isRTL ? segment.isEnd : segment.isStart) ? colContentLeft : colLeft;
 			var rightFunc = (isRTL ? segment.isStart : segment.isEnd) ? colContentRight : colRight;

 			var left = leftFunc(segment.leftCol);
 			var right = rightFunc(segment.rightCol);
 			segment.left = left;
 			segment.outerWidth = right - left;
 		}
 	}


 	// Build a concatenated HTML string for an array of segments
 	function buildHTML(segments) {
 		var html = '';
 		for (var i=0; i<segments.length; i++) {
 			html += buildHTMLForSegment(segments[i]);
 		}
 		return html;
 	}


 	// Build an HTML string for a single segment.
 	// Relies on the following properties:
 	// - `segment.event` (from `buildSegmentsForEvent`)
 	// - `segment.left` (from `calculateHorizontals`)
 	function buildHTMLForSegment(segment) {
 		var html = '';
 		var isRTL = opt('isRTL');
 		var event = segment.event;
 		var url = event.url;

 		// generate the list of CSS classNames
 		var classNames = [ 'fc-event', 'fc-event-hori' ];
 		if (isEventDraggable(event)) {
 			classNames.push('fc-event-draggable');
 		}
 		if (segment.isStart) {
 			classNames.push('fc-event-start');
 		}
 		if (segment.isEnd) {
 			classNames.push('fc-event-end');
 		}
 		// use the event's configured classNames
 		// guaranteed to be an array via `normalizeEvent`
 		classNames = classNames.concat(event.className);
 		if (event.source) {
 			// use the event's source's classNames, if specified
 			classNames = classNames.concat(event.source.className || []);
 		}

 		// generate a semicolon delimited CSS string for any of the "skin" properties
 		// of the event object (`backgroundColor`, `borderColor` and such)
 		var skinCss = getSkinCss(event, opt);

 		if (url) {
 			html += "<a href='" + htmlEscape(url) + "'";
 		}else{
 			html += "<div";
 		}
 		html +=
 			" class='" + classNames.join(' ') + "'" +
 			" style=" +
 				"'" +
 				"position:absolute;" +
 				"left:" + segment.left + "px;" +
 				skinCss +
 				"'" +
 			">" +
 			"<div class='fc-event-inner'>";
 		if (!event.allDay && segment.isStart) {
 			html +=
 				"<span class='fc-event-time'>" +
 				htmlEscape(
 					formatDates(event.start, event.end, opt('timeFormat'))
 				) +
 				"</span>";
 		}
 		html +=
 			"<span class='fc-event-title'>" +
 			htmlEscape(event.title || '') +
 			"</span>" +
 			"</div>";
 		if (segment.isEnd && isEventResizable(event)) {
 			html +=
 				"<div class='ui-resizable-handle ui-resizable-" + (isRTL ? 'w' : 'e') + "'>" +
 				"&nbsp;&nbsp;&nbsp;" + // makes hit area a lot better for IE6/7
 				"</div>";
 		}
 		html += "</" + (url ? "a" : "div") + ">";

 		// TODO:
 		// When these elements are initially rendered, they will be briefly visibile on the screen,
 		// even though their widths/heights are not set.
 		// SOLUTION: initially set them as visibility:hidden ?

 		return html;
 	}


 	// Associate each segment (an object) with an element (a jQuery object),
 	// by setting each `segment.element`.
 	// Run each element through the `eventRender` filter, which allows developers to
 	// modify an existing element, supply a new one, or cancel rendering.
 	function resolveElements(segments, elements) {
 		for (var i=0; i<segments.length; i++) {
 			var segment = segments[i];
 			var event = segment.event;
 			var element = elements.eq(i);

 			// call the trigger with the original element
 			var triggerRes = trigger('eventRender', event, event, element);

 			if (triggerRes === false) {
 				// if `false`, remove the event from the DOM and don't assign it to `segment.event`
 				element.remove();
 			}
 			else {
 				if (triggerRes && triggerRes !== true) {
 					// the trigger returned a new element, but not `true` (which means keep the existing element)

 					// re-assign the important CSS dimension properties that were already assigned in `buildHTMLForSegment`
 					triggerRes = $(triggerRes)
 						.css({
 							position: 'absolute',
 							left: segment.left
 						});

 					element.replaceWith(triggerRes);
 					element = triggerRes;
 				}

 				segment.element = element;
 			}
 		}
 	}



 	/* Top-coordinate Methods
 	-------------------------------------------------------------------------------------------------*/


 	// Sets the "top" CSS property for each element.
 	// If `doRowHeights` is `true`, also sets each row's first cell to an explicit height,
 	// so that if elements vertically overflow, the cell expands vertically to compensate.
 	function setVerticals(segments, doRowHeights) {
 		var rowContentHeights = calculateVerticals(segments); // also sets segment.top
 		var rowContentElements = getRowContentElements(); // returns 1 inner div per row
 		var rowContentTops = [];

 		// Set each row's height by setting height of first inner div
 		if (doRowHeights) {
 			for (var i=0; i<rowContentElements.length; i++) {
 				rowContentElements[i].height(rowContentHeights[i]);
 			}
 		}

 		// Get each row's top, relative to the views's origin.
 		// Important to do this after setting each row's height.
 		for (var i=0; i<rowContentElements.length; i++) {
 			rowContentTops.push(
 				rowContentElements[i].position().top
 			);
 		}

 		// Set each segment element's CSS "top" property.
 		// Each segment object has a "top" property, which is relative to the row's top, but...
 		segmentElementEach(segments, function(segment, element) {
 			element.css(
 				'top',
 				rowContentTops[segment.row] + segment.top // ...now, relative to views's origin
 			);
 		});
 	}


 	// Calculate the "top" coordinate for each segment, relative to the "top" of the row.
 	// Also, return an array that contains the "content" height for each row
 	// (the height displaced by the vertically stacked events in the row).
 	// Requires segments to have their `outerHeight` property already set.
 	function calculateVerticals(segments) {
 		var rowCnt = getRowCnt();
 		var colCnt = getColCnt();
 		var rowContentHeights = []; // content height for each row
 		var segmentRows = buildSegmentRows(segments); // an array of segment arrays, one for each row

 		for (var rowI=0; rowI<rowCnt; rowI++) {
 			var segmentRow = segmentRows[rowI];

 			// an array of running total heights for each column.
 			// initialize with all zeros.
 			var colHeights = [];
 			for (var colI=0; colI<colCnt; colI++) {
 				colHeights.push(0);
 			}

 			// loop through every segment
 			for (var segmentI=0; segmentI<segmentRow.length; segmentI++) {
 				var segment = segmentRow[segmentI];

 				// find the segment's top coordinate by looking at the max height
 				// of all the columns the segment will be in.
 				segment.top = arrayMax(
 					colHeights.slice(
 						segment.leftCol,
 						segment.rightCol + 1 // make exclusive for slice
 					)
 				);

 				// adjust the columns to account for the segment's height
 				for (var colI=segment.leftCol; colI<=segment.rightCol; colI++) {
 					colHeights[colI] = segment.top + segment.outerHeight;
 				}
 			}

 			// the tallest column in the row should be the "content height"
 			rowContentHeights.push(arrayMax(colHeights));
 		}

 		return rowContentHeights;
 	}


 	// Build an array of segment arrays, each representing the segments that will
 	// be in a row of the grid, sorted by which event should be closest to the top.
 	function buildSegmentRows(segments) {
 		var rowCnt = getRowCnt();
 		var segmentRows = [];
 		var segmentI;
 		var segment;
 		var rowI;

 		// group segments by row
 		for (segmentI=0; segmentI<segments.length; segmentI++) {
 			segment = segments[segmentI];
 			rowI = segment.row;
 			if (segment.element) { // was rendered?
 				if (segmentRows[rowI]) {
 					// already other segments. append to array
 					segmentRows[rowI].push(segment);
 				}
 				else {
 					// first segment in row. create new array
 					segmentRows[rowI] = [ segment ];
 				}
 			}
 		}

 		// sort each row
 		for (rowI=0; rowI<rowCnt; rowI++) {
 			segmentRows[rowI] = sortSegmentRow(
 				segmentRows[rowI] || [] // guarantee an array, even if no segments
 			);
 		}

 		return segmentRows;
 	}


 	// Sort an array of segments according to which segment should appear closest to the top
 	function sortSegmentRow(segments) {
 		var sortedSegments = [];

 		// build the subrow array
 		var subrows = buildSegmentSubrows(segments);

 		// flatten it
 		for (var i=0; i<subrows.length; i++) {
 			sortedSegments.push.apply(sortedSegments, subrows[i]); // append an array to an array
 		}

 		return sortedSegments;
 	}


 	// Take an array of segments, which are all assumed to be in the same row,
 	// and sort into subrows.
 	function buildSegmentSubrows(segments) {

 		// Give preference to elements with certain criteria, so they have
 		// a chance to be closer to the top.
 		segments.sort(compareDaySegments);

 		var subrows = [];
 		for (var i=0; i<segments.length; i++) {
 			var segment = segments[i];

 			// loop through subrows, starting with the topmost, until the segment
 			// doesn't collide with other segments.
 			for (var j=0; j<subrows.length; j++) {
 				if (!isDaySegmentCollision(segment, subrows[j])) {
 					break;
 				}
 			}
 			// `j` now holds the desired subrow index
 			if (subrows[j]) {
 				subrows[j].push(segment);
 			}
 			else {
 				subrows[j] = [ segment ];
 			}
 		}

 		return subrows;
 	}


 	// Return an array of jQuery objects for the placeholder content containers of each row.
 	// The content containers don't actually contain anything, but their dimensions should match
 	// the events that are overlaid on top.
 	function getRowContentElements() {
 		var i;
 		var rowCnt = getRowCnt();
 		var rowDivs = [];
 		for (i=0; i<rowCnt; i++) {
 			rowDivs[i] = allDayRow(i)
 				.find('div.fc-day-content > div');
 		}
 		return rowDivs;
 	}



 	/* Mouse Handlers
 	---------------------------------------------------------------------------------------------------*/
 	// TODO: better documentation!


 	function attachHandlers(segments, modifiedEventId) {
 		var segmentContainer = getDaySegmentContainer();

 		segmentElementEach(segments, function(segment, element, i) {
 			var event = segment.event;
 			if (event._id === modifiedEventId) {
 				bindDaySeg(event, element, segment);
 			}else{
 				element[0]._fci = i; // for lazySegBind
 			}
 		});

 		lazySegBind(segmentContainer, segments, bindDaySeg);
 	}


 	function bindDaySeg(event, eventElement, segment) {

 		if (isEventDraggable(event)) {
 			t.draggableDayEvent(event, eventElement, segment); // use `t` so subclasses can override
 		}

 		if (
 			segment.isEnd && // only allow resizing on the final segment for an event
 			isEventResizable(event)
 		) {
 			t.resizableDayEvent(event, eventElement, segment); // use `t` so subclasses can override
 		}

 		// attach all other handlers.
 		// needs to be after, because resizableDayEvent might stopImmediatePropagation on click
 		eventElementHandlers(event, eventElement);
 	}

 	
 	function draggableDayEvent(event, eventElement) {
 		var hoverListener = getHoverListener();
 		var dayDelta;
 		eventElement.draggable({
 			delay: 50,
 			opacity: opt('dragOpacity'),
 			revertDuration: opt('dragRevertDuration'),
 			start: function(ev, ui) {
 				trigger('eventDragStart', eventElement, event, ev, ui);
 				hideEvents(event, eventElement);
 				hoverListener.start(function(cell, origCell, rowDelta, colDelta) {
 					eventElement.draggable('option', 'revert', !cell || !rowDelta && !colDelta);
 					clearOverlays();
 					if (cell) {
 						var origDate = cellToDate(origCell);
 						var date = cellToDate(cell);
 						dayDelta = dayDiff(date, origDate);
 						renderDayOverlay(
 							addDays(cloneDate(event.start), dayDelta),
 							addDays(exclEndDay(event), dayDelta)
 						);
 					}else{
 						dayDelta = 0;
 					}
 				}, ev, 'drag');
 			},
 			stop: function(ev, ui) {
 				hoverListener.stop();
 				clearOverlays();
 				trigger('eventDragStop', eventElement, event, ev, ui);
 				if (dayDelta) {
 					eventDrop(this, event, dayDelta, 0, event.allDay, ev, ui);
 				}else{
 					eventElement.css('filter', ''); // clear IE opacity side-effects
 					showEvents(event, eventElement);
 				}
 			}
 		});
 	}

 	
 	function resizableDayEvent(event, element, segment) {
 		var isRTL = opt('isRTL');
 		var direction = isRTL ? 'w' : 'e';
 		var handle = element.find('.ui-resizable-' + direction); // TODO: stop using this class because we aren't using jqui for this
 		var isResizing = false;
 		
 		// TODO: look into using jquery-ui mouse widget for this stuff
 		disableTextSelection(element); // prevent native <a> selection for IE
 		element
 			.mousedown(function(ev) { // prevent native <a> selection for others
 				ev.preventDefault();
 			})
 			.click(function(ev) {
 				if (isResizing) {
 					ev.preventDefault(); // prevent link from being visited (only method that worked in IE6)
 					ev.stopImmediatePropagation(); // prevent fullcalendar eventClick handler from being called
 					                               // (eventElementHandlers needs to be bound after resizableDayEvent)
 				}
 			});
 		
 		handle.mousedown(function(ev) {
 			if (ev.which != 1) {
 				return; // needs to be left mouse button
 			}
 			isResizing = true;
 			var hoverListener = getHoverListener();
 			var rowCnt = getRowCnt();
 			var colCnt = getColCnt();
 			var elementTop = element.css('top');
 			var dayDelta;
 			var helpers;
 			var eventCopy = $.extend({}, event);
 			var minCellOffset = dayOffsetToCellOffset( dateToDayOffset(event.start) );
 			clearSelection();
 			$('body')
 				.css('cursor', direction + '-resize')
 				.one('mouseup', mouseup);
 			trigger('eventResizeStart', this, event, ev);
 			hoverListener.start(function(cell, origCell) {
 				if (cell) {

 					var origCellOffset = cellToCellOffset(origCell);
 					var cellOffset = cellToCellOffset(cell);

 					// don't let resizing move earlier than start date cell
 					cellOffset = Math.max(cellOffset, minCellOffset);

 					dayDelta =
 						cellOffsetToDayOffset(cellOffset) -
 						cellOffsetToDayOffset(origCellOffset);

 					if (dayDelta) {
 						eventCopy.end = addDays(eventEnd(event), dayDelta, true);
 						var oldHelpers = helpers;

 						helpers = renderTempDayEvent(eventCopy, segment.row, elementTop);
 						helpers = $(helpers); // turn array into a jQuery object

 						helpers.find('*').css('cursor', direction + '-resize');
 						if (oldHelpers) {
 							oldHelpers.remove();
 						}

 						hideEvents(event);
 					}
 					else {
 						if (helpers) {
 							showEvents(event);
 							helpers.remove();
 							helpers = null;
 						}
 					}
 					clearOverlays();
 					renderDayOverlay( // coordinate grid already rebuilt with hoverListener.start()
 						event.start,
 						addDays( exclEndDay(event), dayDelta )
 						// TODO: instead of calling renderDayOverlay() with dates,
 						// call _renderDayOverlay (or whatever) with cell offsets.
 					);
 				}
 			}, ev);
 			
 			function mouseup(ev) {
 				trigger('eventResizeStop', this, event, ev);
 				$('body').css('cursor', '');
 				hoverListener.stop();
 				clearOverlays();
 				if (dayDelta) {
 					eventResize(this, event, dayDelta, 0, ev);
 					// event redraw will clear helpers
 				}
 				// otherwise, the drag handler already restored the old events
 				
 				setTimeout(function() { // make this happen after the element's click event
 					isResizing = false;
 				},0);
 			}
 		});
 	}
 	

 }



 /* Generalized Segment Utilities
 -------------------------------------------------------------------------------------------------*/


 function isDaySegmentCollision(segment, otherSegments) {
 	for (var i=0; i<otherSegments.length; i++) {
 		var otherSegment = otherSegments[i];
 		if (
 			otherSegment.leftCol <= segment.rightCol &&
 			otherSegment.rightCol >= segment.leftCol
 		) {
 			return true;
 		}
 	}
 	return false;
 }


 function segmentElementEach(segments, callback) { // TODO: use in AgendaView?
 	for (var i=0; i<segments.length; i++) {
 		var segment = segments[i];
 		var element = segment.element;
 		if (element) {
 			callback(segment, element, i);
 		}
 	}
 }


 // A cmp function for determining which segments should appear higher up
 function compareDaySegments(a, b) {
 	return (b.rightCol - b.leftCol) - (a.rightCol - a.leftCol) || // put wider events first
 		b.event.allDay - a.event.allDay || // if tie, put all-day events first (booleans cast to 0/1)
 		a.event.start - b.event.start || // if a tie, sort by event start date
 		(a.event.title || '').localeCompare(b.event.title) // if a tie, sort by event title
 }


 ;;

 //BUG: unselect needs to be triggered when events are dragged+dropped

 function SelectionManager() {
 	var t = this;
 	
 	
 	// exports
 	t.select = select;
 	t.unselect = unselect;
 	t.reportSelection = reportSelection;
 	t.daySelectionMousedown = daySelectionMousedown;
 	
 	
 	// imports
 	var opt = t.opt;
 	var trigger = t.trigger;
 	var defaultSelectionEnd = t.defaultSelectionEnd;
 	var renderSelection = t.renderSelection;
 	var clearSelection = t.clearSelection;
 	
 	
 	// locals
 	var selected = false;



 	// unselectAuto
 	if (opt('selectable') && opt('unselectAuto')) {
 		$(document).mousedown(function(ev) {
 			var ignore = opt('unselectCancel');
 			if (ignore) {
 				if ($(ev.target).parents(ignore).length) { // could be optimized to stop after first match
 					return;
 				}
 			}
 			unselect(ev);
 		});
 	}
 	

 	function select(startDate, endDate, allDay) {
 		unselect();
 		if (!endDate) {
 			endDate = defaultSelectionEnd(startDate, allDay);
 		}
 		renderSelection(startDate, endDate, allDay);
 		reportSelection(startDate, endDate, allDay);
 	}
 	
 	
 	function unselect(ev) {
 		if (selected) {
 			selected = false;
 			clearSelection();
 			trigger('unselect', null, ev);
 		}
 	}
 	
 	
 	function reportSelection(startDate, endDate, allDay, ev) {
 		selected = true;
 		trigger('select', null, startDate, endDate, allDay, ev);
 	}
 	
 	
 	function daySelectionMousedown(ev) { // not really a generic manager method, oh well
 		var cellToDate = t.cellToDate;
 		var getIsCellAllDay = t.getIsCellAllDay;
 		var hoverListener = t.getHoverListener();
 		var reportDayClick = t.reportDayClick; // this is hacky and sort of weird
 		if (ev.which == 1 && opt('selectable')) { // which==1 means left mouse button
 			unselect(ev);
 			var _mousedownElement = this;
 			var dates;
 			hoverListener.start(function(cell, origCell) { // TODO: maybe put cellToDate/getIsCellAllDay info in cell
 				clearSelection();
 				if (cell && getIsCellAllDay(cell)) {
 					dates = [ cellToDate(origCell), cellToDate(cell) ].sort(dateCompare);
 					renderSelection(dates[0], dates[1], true);
 				}else{
 					dates = null;
 				}
 			}, ev);
 			$(document).one('mouseup', function(ev) {
 				hoverListener.stop();
 				if (dates) {
 					if (+dates[0] == +dates[1]) {
 						reportDayClick(dates[0], true, ev);
 					}
 					reportSelection(dates[0], dates[1], true, ev);
 				}
 			});
 		}
 	}


 }

 ;;
 
 function OverlayManager() {
 	var t = this;
 	
 	
 	// exports
 	t.renderOverlay = renderOverlay;
 	t.clearOverlays = clearOverlays;
 	
 	
 	// locals
 	var usedOverlays = [];
 	var unusedOverlays = [];
 	
 	
 	function renderOverlay(rect, parent) {
 		var e = unusedOverlays.shift();
 		if (!e) {
 			e = $("<div class='fc-cell-overlay' style='position:absolute;z-index:3'/>");
 		}
 		if (e[0].parentNode != parent[0]) {
 			e.appendTo(parent);
 		}
 		usedOverlays.push(e.css(rect).show());
 		return e;
 	}
 	

 	function clearOverlays() {
 		var e;
 		while (e = usedOverlays.shift()) {
 			unusedOverlays.push(e.hide().unbind());
 		}
 	}


 }

 ;;

 function CoordinateGrid(buildFunc) {

 	var t = this;
 	var rows;
 	var cols;
 	
 	
 	t.build = function() {
 		rows = [];
 		cols = [];
 		buildFunc(rows, cols);
 	};
 	
 	
 	t.cell = function(x, y) {
 		var rowCnt = rows.length;
 		var colCnt = cols.length;
 		var i, r=-1, c=-1;
 		for (i=0; i<rowCnt; i++) {
 			if (y >= rows[i][0] && y < rows[i][1]) {
 				r = i;
 				break;
 			}
 		}
 		for (i=0; i<colCnt; i++) {
 			if (x >= cols[i][0] && x < cols[i][1]) {
 				c = i;
 				break;
 			}
 		}
 		return (r>=0 && c>=0) ? { row:r, col:c } : null;
 	};
 	
 	
 	t.rect = function(row0, col0, row1, col1, originElement) { // row1,col1 is inclusive
 		var origin = originElement.offset();
 		return {
 			top: rows[row0][0] - origin.top,
 			left: cols[col0][0] - origin.left,
 			width: cols[col1][1] - cols[col0][0],
 			height: rows[row1][1] - rows[row0][0]
 		};
 	};

 }

 ;;

 function HoverListener(coordinateGrid) {


 	var t = this;
 	var bindType;
 	var change;
 	var firstCell;
 	var cell;
 	
 	
 	t.start = function(_change, ev, _bindType) {
 		change = _change;
 		firstCell = cell = null;
 		coordinateGrid.build();
 		mouse(ev);
 		bindType = _bindType || 'mousemove';
 		$(document).bind(bindType, mouse);
 	};
 	
 	
 	function mouse(ev) {
 		_fixUIEvent(ev); // see below
 		var newCell = coordinateGrid.cell(ev.pageX, ev.pageY);
 		if (!newCell != !cell || newCell && (newCell.row != cell.row || newCell.col != cell.col)) {
 			if (newCell) {
 				if (!firstCell) {
 					firstCell = newCell;
 				}
 				change(newCell, firstCell, newCell.row-firstCell.row, newCell.col-firstCell.col);
 			}else{
 				change(newCell, firstCell);
 			}
 			cell = newCell;
 		}
 	}
 	
 	
 	t.stop = function() {
 		$(document).unbind(bindType, mouse);
 		return cell;
 	};
 	
 	
 }



 // this fix was only necessary for jQuery UI 1.8.16 (and jQuery 1.7 or 1.7.1)
 // upgrading to jQuery UI 1.8.17 (and using either jQuery 1.7 or 1.7.1) fixed the problem
 // but keep this in here for 1.8.16 users
 // and maybe remove it down the line

 function _fixUIEvent(event) { // for issue 1168
 	if (event.pageX === undefined) {
 		event.pageX = event.originalEvent.pageX;
 		event.pageY = event.originalEvent.pageY;
 	}
 }
 ;;

 function HorizontalPositionCache(getElement) {

 	var t = this,
 		elements = {},
 		lefts = {},
 		rights = {};
 		
 	function e(i) {
 		return elements[i] = elements[i] || getElement(i);
 	}
 	
 	t.left = function(i) {
 		return lefts[i] = lefts[i] === undefined ? e(i).position().left : lefts[i];
 	};
 	
 	t.right = function(i) {
 		return rights[i] = rights[i] === undefined ? t.left(i) + e(i).width() : rights[i];
 	};
 	
 	t.clear = function() {
 		elements = {};
 		lefts = {};
 		rights = {};
 	};
 	
 }

 ;;

 })(jQuery);