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http://modeshift.org/wp-content/plugins/mailchimp//js/datepicker.js?ver=5.5.22

js modeshift.org collected 2026-09-24 21:27:36 UTC 75,876 bytes, 1,815 lines download raw bytes

1/*
2 * jQuery UI Datepicker 1.8.14
3 *
4 * Copyright 2011, AUTHORS.txt (http://jqueryui.com/about)
5 * Dual licensed under the MIT or GPL Version 2 licenses.
6 * http://jquery.org/license
7 *
8 * http://docs.jquery.com/UI/Datepicker
9 *
10 * Depends:
11 *	jquery.ui.core.js
12 */
13(function( $, undefined ) {
14
15$.extend($.ui, { datepicker: { version: "1.8.14" } });
16
17var PROP_NAME = 'datepicker';
18var dpuuid = new Date().getTime();
19var instActive;
20
21/* Date picker manager.
22   Use the singleton instance of this class, $.datepicker, to interact with the date picker.
23   Settings for (groups of) date pickers are maintained in an instance object,
24   allowing multiple different settings on the same page. */
25
26function Datepicker() {
27	this.debug = false; // Change this to true to start debugging
28	this._curInst = null; // The current instance in use
29	this._keyEvent = false; // If the last event was a key event
30	this._disabledInputs = []; // List of date picker inputs that have been disabled
31	this._datepickerShowing = false; // True if the popup picker is showing , false if not
32	this._inDialog = false; // True if showing within a "dialog", false if not
33	this._mainDivId = 'ui-datepicker-div'; // The ID of the main datepicker division
34	this._inlineClass = 'ui-datepicker-inline'; // The name of the inline marker class
35	this._appendClass = 'ui-datepicker-append'; // The name of the append marker class
36	this._triggerClass = 'ui-datepicker-trigger'; // The name of the trigger marker class
37	this._dialogClass = 'ui-datepicker-dialog'; // The name of the dialog marker class
38	this._disableClass = 'ui-datepicker-disabled'; // The name of the disabled covering marker class
39	this._unselectableClass = 'ui-datepicker-unselectable'; // The name of the unselectable cell marker class
40	this._currentClass = 'ui-datepicker-current-day'; // The name of the current day marker class
41	this._dayOverClass = 'ui-datepicker-days-cell-over'; // The name of the day hover marker class
42	this.regional = []; // Available regional settings, indexed by language code
43	this.regional[''] = { // Default regional settings
44		closeText: 'Done', // Display text for close link
45		prevText: 'Prev', // Display text for previous month link
46		nextText: 'Next', // Display text for next month link
47		currentText: 'Today', // Display text for current month link
48		monthNames: ['January','February','March','April','May','June',
49			'July','August','September','October','November','December'], // Names of months for drop-down and formatting
50		monthNamesShort: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'], // For formatting
51		dayNames: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'], // For formatting
52		dayNamesShort: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'], // For formatting
53		dayNamesMin: ['Su','Mo','Tu','We','Th','Fr','Sa'], // Column headings for days starting at Sunday
54		weekHeader: 'Wk', // Column header for week of the year
55		dateFormat: 'mm/dd/yy', // See format options on parseDate
56		firstDay: 0, // The first day of the week, Sun = 0, Mon = 1, ...
57		isRTL: false, // True if right-to-left language, false if left-to-right
58		showMonthAfterYear: false, // True if the year select precedes month, false for month then year
59		yearSuffix: '' // Additional text to append to the year in the month headers
60	};
61	this._defaults = { // Global defaults for all the date picker instances
62		showOn: 'focus', // 'focus' for popup on focus,
63			// 'button' for trigger button, or 'both' for either
64		showAnim: 'fadeIn', // Name of jQuery animation for popup
65		showOptions: {}, // Options for enhanced animations
66		defaultDate: null, // Used when field is blank: actual date,
67			// +/-number for offset from today, null for today
68		appendText: '', // Display text following the input box, e.g. showing the format
69		buttonText: '...', // Text for trigger button
70		buttonImage: '', // URL for trigger button image
71		buttonImageOnly: false, // True if the image appears alone, false if it appears on a button
72		hideIfNoPrevNext: false, // True to hide next/previous month links
73			// if not applicable, false to just disable them
74		navigationAsDateFormat: false, // True if date formatting applied to prev/today/next links
75		gotoCurrent: false, // True if today link goes back to current selection instead
76		changeMonth: false, // True if month can be selected directly, false if only prev/next
77		changeYear: false, // True if year can be selected directly, false if only prev/next
78		yearRange: 'c-10:c+10', // Range of years to display in drop-down,
79			// either relative to today's year (-nn:+nn), relative to currently displayed year
80			// (c-nn:c+nn), absolute (nnnn:nnnn), or a combination of the above (nnnn:-n)
81		showOtherMonths: false, // True to show dates in other months, false to leave blank
82		selectOtherMonths: false, // True to allow selection of dates in other months, false for unselectable
83		showWeek: false, // True to show week of the year, false to not show it
84		calculateWeek: this.iso8601Week, // How to calculate the week of the year,
85			// takes a Date and returns the number of the week for it
86		shortYearCutoff: '+10', // Short year values < this are in the current century,
87			// > this are in the previous century,
88			// string value starting with '+' for current year + value
89		minDate: null, // The earliest selectable date, or null for no limit
90		maxDate: null, // The latest selectable date, or null for no limit
91		duration: 'fast', // Duration of display/closure
92		beforeShowDay: null, // Function that takes a date and returns an array with
93			// [0] = true if selectable, false if not, [1] = custom CSS class name(s) or '',
94			// [2] = cell title (optional), e.g. $.datepicker.noWeekends
95		beforeShow: null, // Function that takes an input field and
96			// returns a set of custom settings for the date picker
97		onSelect: null, // Define a callback function when a date is selected
98		onChangeMonthYear: null, // Define a callback function when the month or year is changed
99		onClose: null, // Define a callback function when the datepicker is closed
100		numberOfMonths: 1, // Number of months to show at a time
101		showCurrentAtPos: 0, // The position in multipe months at which to show the current month (starting at 0)
102		stepMonths: 1, // Number of months to step back/forward
103		stepBigMonths: 12, // Number of months to step back/forward for the big links
104		altField: '', // Selector for an alternate field to store selected dates into
105		altFormat: '', // The date format to use for the alternate field
106		constrainInput: true, // The input is constrained by the current date format
107		showButtonPanel: false, // True to show button panel, false to not show it
108		autoSize: false // True to size the input for the date format, false to leave as is
109	};
110	$.extend(this._defaults, this.regional['']);
111	this.dpDiv = bindHover($('<div id="' + this._mainDivId + '" class="ui-datepicker ui-widget ui-widget-content ui-helper-clearfix ui-corner-all"></div>'));
112}
113
114$.extend(Datepicker.prototype, {
115	/* Class name added to elements to indicate already configured with a date picker. */
116	markerClassName: 'hasDatepicker',
117	
118	//Keep track of the maximum number of rows displayed (see #7043)
119	maxRows: 4,
120
121	/* Debug logging (if enabled). */
122	log: function () {
123		if (this.debug)
124			console.log.apply('', arguments);
125	},
126	
127	// TODO rename to "widget" when switching to widget factory
128	_widgetDatepicker: function() {
129		return this.dpDiv;
130	},
131
132	/* Override the default settings for all instances of the date picker.
133	   @param  settings  object - the new settings to use as defaults (anonymous object)
134	   @return the manager object */
135	setDefaults: function(settings) {
136		extendRemove(this._defaults, settings || {});
137		return this;
138	},
139
140	/* Attach the date picker to a jQuery selection.
141	   @param  target    element - the target input field or division or span
142	   @param  settings  object - the new settings to use for this date picker instance (anonymous) */
143	_attachDatepicker: function(target, settings) {
144		// check for settings on the control itself - in namespace 'date:'
145		var inlineSettings = null;
146		for (var attrName in this._defaults) {
147			var attrValue = target.getAttribute('date:' + attrName);
148			if (attrValue) {
149				inlineSettings = inlineSettings || {};
150				try {
151					inlineSettings[attrName] = eval(attrValue);
152				} catch (err) {
153					inlineSettings[attrName] = attrValue;
154				}
155			}
156		}
157		var nodeName = target.nodeName.toLowerCase();
158		var inline = (nodeName == 'div' || nodeName == 'span');
159		if (!target.id) {
160			this.uuid += 1;
161			target.id = 'dp' + this.uuid;
162		}
163		var inst = this._newInst($(target), inline);
164		inst.settings = $.extend({}, settings || {}, inlineSettings || {});
165		if (nodeName == 'input') {
166			this._connectDatepicker(target, inst);
167		} else if (inline) {
168			this._inlineDatepicker(target, inst);
169		}
170	},
171
172	/* Create a new instance object. */
173	_newInst: function(target, inline) {
174		var id = target[0].id.replace(/([^A-Za-z0-9_-])/g, '\\\\$1'); // escape jQuery meta chars
175		return {id: id, input: target, // associated target
176			selectedDay: 0, selectedMonth: 0, selectedYear: 0, // current selection
177			drawMonth: 0, drawYear: 0, // month being drawn
178			inline: inline, // is datepicker inline or not
179			dpDiv: (!inline ? this.dpDiv : // presentation div
180			bindHover($('<div class="' + this._inlineClass + ' ui-datepicker ui-widget ui-widget-content ui-helper-clearfix ui-corner-all"></div>')))};
181	},
182
183	/* Attach the date picker to an input field. */
184	_connectDatepicker: function(target, inst) {
185		var input = $(target);
186		inst.append = $([]);
187		inst.trigger = $([]);
188		if (input.hasClass(this.markerClassName))
189			return;
190		this._attachments(input, inst);
191		input.addClass(this.markerClassName).keydown(this._doKeyDown).
192			keypress(this._doKeyPress).keyup(this._doKeyUp).
193			bind("setData.datepicker", function(event, key, value) {
194				inst.settings[key] = value;
195			}).bind("getData.datepicker", function(event, key) {
196				return this._get(inst, key);
197			});
198		this._autoSize(inst);
199		$.data(target, PROP_NAME, inst);
200	},
201
202	/* Make attachments based on settings. */
203	_attachments: function(input, inst) {
204		var appendText = this._get(inst, 'appendText');
205		var isRTL = this._get(inst, 'isRTL');
206		if (inst.append)
207			inst.append.remove();
208		if (appendText) {
209			inst.append = $('<span class="' + this._appendClass + '">' + appendText + '</span>');
210			input[isRTL ? 'before' : 'after'](inst.append);
211		}
212		input.unbind('focus', this._showDatepicker);
213		if (inst.trigger)
214			inst.trigger.remove();
215		var showOn = this._get(inst, 'showOn');
216		if (showOn == 'focus' || showOn == 'both') // pop-up date picker when in the marked field
217			input.focus(this._showDatepicker);
218		if (showOn == 'button' || showOn == 'both') { // pop-up date picker when button clicked
219			var buttonText = this._get(inst, 'buttonText');
220			var buttonImage = this._get(inst, 'buttonImage');
221			inst.trigger = $(this._get(inst, 'buttonImageOnly') ?
222				$('<img/>').addClass(this._triggerClass).
223					attr({ src: buttonImage, alt: buttonText, title: buttonText }) :
224				$('<button type="button"></button>').addClass(this._triggerClass).
225					html(buttonImage == '' ? buttonText : $('<img/>').attr(
226					{ src:buttonImage, alt:buttonText, title:buttonText })));
227			input[isRTL ? 'before' : 'after'](inst.trigger);
228			inst.trigger.click(function() {
229				if ($.datepicker._datepickerShowing && $.datepicker._lastInput == input[0])
230					$.datepicker._hideDatepicker();
231				else
232					$.datepicker._showDatepicker(input[0]);
233				return false;
234			});
235		}
236	},
237
238	/* Apply the maximum length for the date format. */
239	_autoSize: function(inst) {
240		if (this._get(inst, 'autoSize') && !inst.inline) {
241			var date = new Date(2009, 12 - 1, 20); // Ensure double digits
242			var dateFormat = this._get(inst, 'dateFormat');
243			if (dateFormat.match(/[DM]/)) {
244				var findMax = function(names) {
245					var max = 0;
246					var maxI = 0;
247					for (var i = 0; i < names.length; i++) {
248						if (names[i].length > max) {
249							max = names[i].length;
250							maxI = i;
251						}
252					}
253					return maxI;
254				};
255				date.setMonth(findMax(this._get(inst, (dateFormat.match(/MM/) ?
256					'monthNames' : 'monthNamesShort'))));
257				date.setDate(findMax(this._get(inst, (dateFormat.match(/DD/) ?
258					'dayNames' : 'dayNamesShort'))) + 20 - date.getDay());
259			}
260			inst.input.attr('size', this._formatDate(inst, date).length);
261		}
262	},
263
264	/* Attach an inline date picker to a div. */
265	_inlineDatepicker: function(target, inst) {
266		var divSpan = $(target);
267		if (divSpan.hasClass(this.markerClassName))
268			return;
269		divSpan.addClass(this.markerClassName).append(inst.dpDiv).
270			bind("setData.datepicker", function(event, key, value){
271				inst.settings[key] = value;
272			}).bind("getData.datepicker", function(event, key){
273				return this._get(inst, key);
274			});
275		$.data(target, PROP_NAME, inst);
276		this._setDate(inst, this._getDefaultDate(inst), true);
277		this._updateDatepicker(inst);
278		this._updateAlternate(inst);
279		inst.dpDiv.show();
280	},
281
282	/* Pop-up the date picker in a "dialog" box.
283	   @param  input     element - ignored
284	   @param  date      string or Date - the initial date to display
285	   @param  onSelect  function - the function to call when a date is selected
286	   @param  settings  object - update the dialog date picker instance's settings (anonymous object)
287	   @param  pos       int[2] - coordinates for the dialog's position within the screen or
288	                     event - with x/y coordinates or
289	                     leave empty for default (screen centre)
290	   @return the manager object */
291	_dialogDatepicker: function(input, date, onSelect, settings, pos) {
292		var inst = this._dialogInst; // internal instance
293		if (!inst) {
294			this.uuid += 1;
295			var id = 'dp' + this.uuid;
296			this._dialogInput = $('<input type="text" id="' + id +
297				'" style="position: absolute; top: -100px; width: 0px; z-index: -10;"/>');
298			this._dialogInput.keydown(this._doKeyDown);
299			$('body').append(this._dialogInput);
300			inst = this._dialogInst = this._newInst(this._dialogInput, false);
301			inst.settings = {};
302			$.data(this._dialogInput[0], PROP_NAME, inst);
303		}
304		extendRemove(inst.settings, settings || {});
305		date = (date && date.constructor == Date ? this._formatDate(inst, date) : date);
306		this._dialogInput.val(date);
307
308		this._pos = (pos ? (pos.length ? pos : [pos.pageX, pos.pageY]) : null);
309		if (!this._pos) {
310			var browserWidth = document.documentElement.clientWidth;
311			var browserHeight = document.documentElement.clientHeight;
312			var scrollX = document.documentElement.scrollLeft || document.body.scrollLeft;
313			var scrollY = document.documentElement.scrollTop || document.body.scrollTop;
314			this._pos = // should use actual width/height below
315				[(browserWidth / 2) - 100 + scrollX, (browserHeight / 2) - 150 + scrollY];
316		}
317
318		// move input on screen for focus, but hidden behind dialog
319		this._dialogInput.css('left', (this._pos[0] + 20) + 'px').css('top', this._pos[1] + 'px');
320		inst.settings.onSelect = onSelect;
321		this._inDialog = true;
322		this.dpDiv.addClass(this._dialogClass);
323		this._showDatepicker(this._dialogInput[0]);
324		if ($.blockUI)
325			$.blockUI(this.dpDiv);
326		$.data(this._dialogInput[0], PROP_NAME, inst);
327		return this;
328	},
329
330	/* Detach a datepicker from its control.
331	   @param  target    element - the target input field or division or span */
332	_destroyDatepicker: function(target) {
333		var $target = $(target);
334		var inst = $.data(target, PROP_NAME);
335		if (!$target.hasClass(this.markerClassName)) {
336			return;
337		}
338		var nodeName = target.nodeName.toLowerCase();
339		$.removeData(target, PROP_NAME);
340		if (nodeName == 'input') {
341			inst.append.remove();
342			inst.trigger.remove();
343			$target.removeClass(this.markerClassName).
344				unbind('focus', this._showDatepicker).
345				unbind('keydown', this._doKeyDown).
346				unbind('keypress', this._doKeyPress).
347				unbind('keyup', this._doKeyUp);
348		} else if (nodeName == 'div' || nodeName == 'span')
349			$target.removeClass(this.markerClassName).empty();
350	},
351
352	/* Enable the date picker to a jQuery selection.
353	   @param  target    element - the target input field or division or span */
354	_enableDatepicker: function(target) {
355		var $target = $(target);
356		var inst = $.data(target, PROP_NAME);
357		if (!$target.hasClass(this.markerClassName)) {
358			return;
359		}
360		var nodeName = target.nodeName.toLowerCase();
361		if (nodeName == 'input') {
362			target.disabled = false;
363			inst.trigger.filter('button').
364				each(function() { this.disabled = false; }).end().
365				filter('img').css({opacity: '1.0', cursor: ''});
366		}
367		else if (nodeName == 'div' || nodeName == 'span') {
368			var inline = $target.children('.' + this._inlineClass);
369			inline.children().removeClass('ui-state-disabled');
370			inline.find("select.ui-datepicker-month, select.ui-datepicker-year").
371				removeAttr("disabled");
372		}
373		this._disabledInputs = $.map(this._disabledInputs,
374			function(value) { return (value == target ? null : value); }); // delete entry
375	},
376
377	/* Disable the date picker to a jQuery selection.
378	   @param  target    element - the target input field or division or span */
379	_disableDatepicker: function(target) {
380		var $target = $(target);
381		var inst = $.data(target, PROP_NAME);
382		if (!$target.hasClass(this.markerClassName)) {
383			return;
384		}
385		var nodeName = target.nodeName.toLowerCase();
386		if (nodeName == 'input') {
387			target.disabled = true;
388			inst.trigger.filter('button').
389				each(function() { this.disabled = true; }).end().
390				filter('img').css({opacity: '0.5', cursor: 'default'});
391		}
392		else if (nodeName == 'div' || nodeName == 'span') {
393			var inline = $target.children('.' + this._inlineClass);
394			inline.children().addClass('ui-state-disabled');
395			inline.find("select.ui-datepicker-month, select.ui-datepicker-year").
396				attr("disabled", "disabled");
397		}
398		this._disabledInputs = $.map(this._disabledInputs,
399			function(value) { return (value == target ? null : value); }); // delete entry
400		this._disabledInputs[this._disabledInputs.length] = target;
401	},
402
403	/* Is the first field in a jQuery collection disabled as a datepicker?
404	   @param  target    element - the target input field or division or span
405	   @return boolean - true if disabled, false if enabled */
406	_isDisabledDatepicker: function(target) {
407		if (!target) {
408			return false;
409		}
410		for (var i = 0; i < this._disabledInputs.length; i++) {
411			if (this._disabledInputs[i] == target)
412				return true;
413		}
414		return false;
415	},
416
417	/* Retrieve the instance data for the target control.
418	   @param  target  element - the target input field or division or span
419	   @return  object - the associated instance data
420	   @throws  error if a jQuery problem getting data */
421	_getInst: function(target) {
422		try {
423			return $.data(target, PROP_NAME);
424		}
425		catch (err) {
426			throw 'Missing instance data for this datepicker';
427		}
428	},
429
430	/* Update or retrieve the settings for a date picker attached to an input field or division.
431	   @param  target  element - the target input field or division or span
432	   @param  name    object - the new settings to update or
433	                   string - the name of the setting to change or retrieve,
434	                   when retrieving also 'all' for all instance settings or
435	                   'defaults' for all global defaults
436	   @param  value   any - the new value for the setting
437	                   (omit if above is an object or to retrieve a value) */
438	_optionDatepicker: function(target, name, value) {
439		var inst = this._getInst(target);
440		if (arguments.length == 2 && typeof name == 'string') {
441			return (name == 'defaults' ? $.extend({}, $.datepicker._defaults) :
442				(inst ? (name == 'all' ? $.extend({}, inst.settings) :
443				this._get(inst, name)) : null));
444		}
445		var settings = name || {};
446		if (typeof name == 'string') {
447			settings = {};
448			settings[name] = value;
449		}
450		if (inst) {
451			if (this._curInst == inst) {
452				this._hideDatepicker();
453			}
454			var date = this._getDateDatepicker(target, true);
455			var minDate = this._getMinMaxDate(inst, 'min');
456			var maxDate = this._getMinMaxDate(inst, 'max');
457			extendRemove(inst.settings, settings);
458			// reformat the old minDate/maxDate values if dateFormat changes and a new minDate/maxDate isn't provided
459			if (minDate !== null && settings['dateFormat'] !== undefined && settings['minDate'] === undefined)
460				inst.settings.minDate = this._formatDate(inst, minDate);
461			if (maxDate !== null && settings['dateFormat'] !== undefined && settings['maxDate'] === undefined)
462				inst.settings.maxDate = this._formatDate(inst, maxDate);
463			this._attachments($(target), inst);
464			this._autoSize(inst);
465			this._setDate(inst, date);
466			this._updateAlternate(inst);
467			this._updateDatepicker(inst);
468		}
469	},
470
471	// change method deprecated
472	_changeDatepicker: function(target, name, value) {
473		this._optionDatepicker(target, name, value);
474	},
475
476	/* Redraw the date picker attached to an input field or division.
477	   @param  target  element - the target input field or division or span */
478	_refreshDatepicker: function(target) {
479		var inst = this._getInst(target);
480		if (inst) {
481			this._updateDatepicker(inst);
482		}
483	},
484
485	/* Set the dates for a jQuery selection.
486	   @param  target   element - the target input field or division or span
487	   @param  date     Date - the new date */
488	_setDateDatepicker: function(target, date) {
489		var inst = this._getInst(target);
490		if (inst) {
491			this._setDate(inst, date);
492			this._updateDatepicker(inst);
493			this._updateAlternate(inst);
494		}
495	},
496
497	/* Get the date(s) for the first entry in a jQuery selection.
498	   @param  target     element - the target input field or division or span
499	   @param  noDefault  boolean - true if no default date is to be used
500	   @return Date - the current date */
501	_getDateDatepicker: function(target, noDefault) {
502		var inst = this._getInst(target);
503		if (inst && !inst.inline)
504			this._setDateFromField(inst, noDefault);
505		return (inst ? this._getDate(inst) : null);
506	},
507
508	/* Handle keystrokes. */
509	_doKeyDown: function(event) {
510		var inst = $.datepicker._getInst(event.target);
511		var handled = true;
512		var isRTL = inst.dpDiv.is('.ui-datepicker-rtl');
513		inst._keyEvent = true;
514		if ($.datepicker._datepickerShowing)
515			switch (event.keyCode) {
516				case 9: $.datepicker._hideDatepicker();
517						handled = false;
518						break; // hide on tab out
519				case 13: var sel = $('td.' + $.datepicker._dayOverClass + ':not(.' + 
520									$.datepicker._currentClass + ')', inst.dpDiv);
521						if (sel[0])
522							$.datepicker._selectDay(event.target, inst.selectedMonth, inst.selectedYear, sel[0]);
523						else
524							$.datepicker._hideDatepicker();
525						return false; // don't submit the form
526						break; // select the value on enter
527				case 27: $.datepicker._hideDatepicker();
528						break; // hide on escape
529				case 33: $.datepicker._adjustDate(event.target, (event.ctrlKey ?
530							-$.datepicker._get(inst, 'stepBigMonths') :
531							-$.datepicker._get(inst, 'stepMonths')), 'M');
532						break; // previous month/year on page up/+ ctrl
533				case 34: $.datepicker._adjustDate(event.target, (event.ctrlKey ?
534							+$.datepicker._get(inst, 'stepBigMonths') :
535							+$.datepicker._get(inst, 'stepMonths')), 'M');
536						break; // next month/year on page down/+ ctrl
537				case 35: if (event.ctrlKey || event.metaKey) $.datepicker._clearDate(event.target);
538						handled = event.ctrlKey || event.metaKey;
539						break; // clear on ctrl or command +end
540				case 36: if (event.ctrlKey || event.metaKey) $.datepicker._gotoToday(event.target);
541						handled = event.ctrlKey || event.metaKey;
542						break; // current on ctrl or command +home
543				case 37: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, (isRTL ? +1 : -1), 'D');
544						handled = event.ctrlKey || event.metaKey;
545						// -1 day on ctrl or command +left
546						if (event.originalEvent.altKey) $.datepicker._adjustDate(event.target, (event.ctrlKey ?
547									-$.datepicker._get(inst, 'stepBigMonths') :
548									-$.datepicker._get(inst, 'stepMonths')), 'M');
549						// next month/year on alt +left on Mac
550						break;
551				case 38: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, -7, 'D');
552						handled = event.ctrlKey || event.metaKey;
553						break; // -1 week on ctrl or command +up
554				case 39: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, (isRTL ? -1 : +1), 'D');
555						handled = event.ctrlKey || event.metaKey;
556						// +1 day on ctrl or command +right
557						if (event.originalEvent.altKey) $.datepicker._adjustDate(event.target, (event.ctrlKey ?
558									+$.datepicker._get(inst, 'stepBigMonths') :
559									+$.datepicker._get(inst, 'stepMonths')), 'M');
560						// next month/year on alt +right
561						break;
562				case 40: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, +7, 'D');
563						handled = event.ctrlKey || event.metaKey;
564						break; // +1 week on ctrl or command +down
565				default: handled = false;
566			}
567		else if (event.keyCode == 36 && event.ctrlKey) // display the date picker on ctrl+home
568			$.datepicker._showDatepicker(this);
569		else {
570			handled = false;
571		}
572		if (handled) {
573			event.preventDefault();
574			event.stopPropagation();
575		}
576	},
577
578	/* Filter entered characters - based on date format. */
579	_doKeyPress: function(event) {
580		var inst = $.datepicker._getInst(event.target);
581		if ($.datepicker._get(inst, 'constrainInput')) {
582			var chars = $.datepicker._possibleChars($.datepicker._get(inst, 'dateFormat'));
583			var chr = String.fromCharCode(event.charCode == undefined ? event.keyCode : event.charCode);
584			return event.ctrlKey || event.metaKey || (chr < ' ' || !chars || chars.indexOf(chr) > -1);
585		}
586	},
587
588	/* Synchronise manual entry and field/alternate field. */
589	_doKeyUp: function(event) {
590		var inst = $.datepicker._getInst(event.target);
591		if (inst.input.val() != inst.lastVal) {
592			try {
593				var date = $.datepicker.parseDate($.datepicker._get(inst, 'dateFormat'),
594					(inst.input ? inst.input.val() : null),
595					$.datepicker._getFormatConfig(inst));
596				if (date) { // only if valid
597					$.datepicker._setDateFromField(inst);
598					$.datepicker._updateAlternate(inst);
599					$.datepicker._updateDatepicker(inst);
600				}
601			}
602			catch (event) {
603				$.datepicker.log(event);
604			}
605		}
606		return true;
607	},
608
609	/* Pop-up the date picker for a given input field.
610	   @param  input  element - the input field attached to the date picker or
611	                  event - if triggered by focus */
612	_showDatepicker: function(input) {
613		input = input.target || input;
614		if (input.nodeName.toLowerCase() != 'input') // find from button/image trigger
615			input = $('input', input.parentNode)[0];
616		if ($.datepicker._isDisabledDatepicker(input) || $.datepicker._lastInput == input) // already here
617			return;
618		var inst = $.datepicker._getInst(input);
619		if ($.datepicker._curInst && $.datepicker._curInst != inst) {
620			if ( $.datepicker._datepickerShowing ) {
621				$.datepicker._triggerOnClose($.datepicker._curInst);
622			}
623			$.datepicker._curInst.dpDiv.stop(true, true);
624		}
625		var beforeShow = $.datepicker._get(inst, 'beforeShow');
626		extendRemove(inst.settings, (beforeShow ? beforeShow.apply(input, [input, inst]) : {}));
627		inst.lastVal = null;
628		$.datepicker._lastInput = input;
629		$.datepicker._setDateFromField(inst);
630		if ($.datepicker._inDialog) // hide cursor
631			input.value = '';
632		if (!$.datepicker._pos) { // position below input
633			$.datepicker._pos = $.datepicker._findPos(input);
634			$.datepicker._pos[1] += input.offsetHeight; // add the height
635		}
636		var isFixed = false;
637		$(input).parents().each(function() {
638			isFixed |= $(this).css('position') == 'fixed';
639			return !isFixed;
640		});
641		if (isFixed && $.browser.opera) { // correction for Opera when fixed and scrolled
642			$.datepicker._pos[0] -= document.documentElement.scrollLeft;
643			$.datepicker._pos[1] -= document.documentElement.scrollTop;
644		}
645		var offset = {left: $.datepicker._pos[0], top: $.datepicker._pos[1]};
646		$.datepicker._pos = null;
647		//to avoid flashes on Firefox
648		inst.dpDiv.empty();
649		// determine sizing offscreen
650		inst.dpDiv.css({position: 'absolute', display: 'block', top: '-1000px'});
651		$.datepicker._updateDatepicker(inst);
652		// fix width for dynamic number of date pickers
653		// and adjust position before showing
654		offset = $.datepicker._checkOffset(inst, offset, isFixed);
655		inst.dpDiv.css({position: ($.datepicker._inDialog && $.blockUI ?
656			'static' : (isFixed ? 'fixed' : 'absolute')), display: 'none',
657			left: offset.left + 'px', top: offset.top + 'px'});
658		if (!inst.inline) {
659			var showAnim = $.datepicker._get(inst, 'showAnim');
660			var duration = $.datepicker._get(inst, 'duration');
661			var postProcess = function() {
662				var cover = inst.dpDiv.find('iframe.ui-datepicker-cover'); // IE6- only
663				if( !! cover.length ){
664					var borders = $.datepicker._getBorders(inst.dpDiv);
665					cover.css({left: -borders[0], top: -borders[1],
666						width: inst.dpDiv.outerWidth(), height: inst.dpDiv.outerHeight()});
667				}
668			};
669			inst.dpDiv.zIndex($(input).zIndex()+1);
670			$.datepicker._datepickerShowing = true;
671			if ($.effects && $.effects[showAnim])
672				inst.dpDiv.show(showAnim, $.datepicker._get(inst, 'showOptions'), duration, postProcess);
673			else
674				inst.dpDiv[showAnim || 'show']((showAnim ? duration : null), postProcess);
675			if (!showAnim || !duration)
676				postProcess();
677			if (inst.input.is(':visible') && !inst.input.is(':disabled'))
678				inst.input.focus();
679			$.datepicker._curInst = inst;
680		}
681	},
682
683	/* Generate the date picker content. */
684	_updateDatepicker: function(inst) {
685		var self = this;
686		self.maxRows = 4; //Reset the max number of rows being displayed (see #7043)
687		var borders = $.datepicker._getBorders(inst.dpDiv);
688		instActive = inst; // for delegate hover events
689		inst.dpDiv.empty().append(this._generateHTML(inst));
690		var cover = inst.dpDiv.find('iframe.ui-datepicker-cover'); // IE6- only
691		if( !!cover.length ){ //avoid call to outerXXXX() when not in IE6
692			cover.css({left: -borders[0], top: -borders[1], width: inst.dpDiv.outerWidth(), height: inst.dpDiv.outerHeight()})
693		}
694		inst.dpDiv.find('.' + this._dayOverClass + ' a').mouseover();
695		var numMonths = this._getNumberOfMonths(inst);
696		var cols = numMonths[1];
697		var width = 17;
698		inst.dpDiv.removeClass('ui-datepicker-multi-2 ui-datepicker-multi-3 ui-datepicker-multi-4').width('');
699		if (cols > 1)
700			inst.dpDiv.addClass('ui-datepicker-multi-' + cols).css('width', (width * cols) + 'em');
701		inst.dpDiv[(numMonths[0] != 1 || numMonths[1] != 1 ? 'add' : 'remove') +
702			'Class']('ui-datepicker-multi');
703		inst.dpDiv[(this._get(inst, 'isRTL') ? 'add' : 'remove') +
704			'Class']('ui-datepicker-rtl');
705		if (inst == $.datepicker._curInst && $.datepicker._datepickerShowing && inst.input &&
706				// #6694 - don't focus the input if it's already focused
707				// this breaks the change event in IE
708				inst.input.is(':visible') && !inst.input.is(':disabled') && inst.input[0] != document.activeElement)
709			inst.input.focus();
710		// deffered render of the years select (to avoid flashes on Firefox) 
711		if( inst.yearshtml ){
712			var origyearshtml = inst.yearshtml;
713			setTimeout(function(){
714				//assure that inst.yearshtml didn't change.
715				if( origyearshtml === inst.yearshtml && inst.yearshtml ){
716					inst.dpDiv.find('select.ui-datepicker-year:first').replaceWith(inst.yearshtml);
717				}
718				origyearshtml = inst.yearshtml = null;
719			}, 0);
720		}
721	},
722
723	/* Retrieve the size of left and top borders for an element.
724	   @param  elem  (jQuery object) the element of interest
725	   @return  (number[2]) the left and top borders */
726	_getBorders: function(elem) {
727		var convert = function(value) {
728			return {thin: 1, medium: 2, thick: 3}[value] || value;
729		};
730		return [parseFloat(convert(elem.css('border-left-width'))),
731			parseFloat(convert(elem.css('border-top-width')))];
732	},
733
734	/* Check positioning to remain on screen. */
735	_checkOffset: function(inst, offset, isFixed) {
736		var dpWidth = inst.dpDiv.outerWidth();
737		var dpHeight = inst.dpDiv.outerHeight();
738		var inputWidth = inst.input ? inst.input.outerWidth() : 0;
739		var inputHeight = inst.input ? inst.input.outerHeight() : 0;
740		var viewWidth = document.documentElement.clientWidth + $(document).scrollLeft();
741		var viewHeight = document.documentElement.clientHeight + $(document).scrollTop();
742
743		offset.left -= (this._get(inst, 'isRTL') ? (dpWidth - inputWidth) : 0);
744		offset.left -= (isFixed && offset.left == inst.input.offset().left) ? $(document).scrollLeft() : 0;
745		offset.top -= (isFixed && offset.top == (inst.input.offset().top + inputHeight)) ? $(document).scrollTop() : 0;
746
747		// now check if datepicker is showing outside window viewport - move to a better place if so.
748		offset.left -= Math.min(offset.left, (offset.left + dpWidth > viewWidth && viewWidth > dpWidth) ?
749			Math.abs(offset.left + dpWidth - viewWidth) : 0);
750		offset.top -= Math.min(offset.top, (offset.top + dpHeight > viewHeight && viewHeight > dpHeight) ?
751			Math.abs(dpHeight + inputHeight) : 0);
752
753		return offset;
754	},
755
756	/* Find an object's position on the screen. */
757	_findPos: function(obj) {
758		var inst = this._getInst(obj);
759		var isRTL = this._get(inst, 'isRTL');
760        while (obj && (obj.type == 'hidden' || obj.nodeType != 1 || $.expr.filters.hidden(obj))) {
761            obj = obj[isRTL ? 'previousSibling' : 'nextSibling'];
762        }
763        var position = $(obj).offset();
764	    return [position.left, position.top];
765	},
766
767	/* Trigger custom callback of onClose. */
768	_triggerOnClose: function(inst) {
769		var onClose = this._get(inst, 'onClose');
770		if (onClose)
771			onClose.apply((inst.input ? inst.input[0] : null),
772						  [(inst.input ? inst.input.val() : ''), inst]);
773	},
774
775	/* Hide the date picker from view.
776	   @param  input  element - the input field attached to the date picker */
777	_hideDatepicker: function(input) {
778		var inst = this._curInst;
779		if (!inst || (input && inst != $.data(input, PROP_NAME)))
780			return;
781		if (this._datepickerShowing) {
782			var showAnim = this._get(inst, 'showAnim');
783			var duration = this._get(inst, 'duration');
784			var postProcess = function() {
785				$.datepicker._tidyDialog(inst);
786				this._curInst = null;
787			};
788			if ($.effects && $.effects[showAnim])
789				inst.dpDiv.hide(showAnim, $.datepicker._get(inst, 'showOptions'), duration, postProcess);
790			else
791				inst.dpDiv[(showAnim == 'slideDown' ? 'slideUp' :
792					(showAnim == 'fadeIn' ? 'fadeOut' : 'hide'))]((showAnim ? duration : null), postProcess);
793			if (!showAnim)
794				postProcess();
795			$.datepicker._triggerOnClose(inst);
796			this._datepickerShowing = false;
797			this._lastInput = null;
798			if (this._inDialog) {
799				this._dialogInput.css({ position: 'absolute', left: '0', top: '-100px' });
800				if ($.blockUI) {
801					$.unblockUI();
802					$('body').append(this.dpDiv);
803				}
804			}
805			this._inDialog = false;
806		}
807	},
808
809	/* Tidy up after a dialog display. */
810	_tidyDialog: function(inst) {
811		inst.dpDiv.removeClass(this._dialogClass).unbind('.ui-datepicker-calendar');
812	},
813
814	/* Close date picker if clicked elsewhere. */
815	_checkExternalClick: function(event) {
816		if (!$.datepicker._curInst)
817			return;
818		var $target = $(event.target);
819		if ($target[0].id != $.datepicker._mainDivId &&
820				$target.parents('#' + $.datepicker._mainDivId).length == 0 &&
821				!$target.hasClass($.datepicker.markerClassName) &&
822				!$target.hasClass($.datepicker._triggerClass) &&
823				$.datepicker._datepickerShowing && !($.datepicker._inDialog && $.blockUI))
824			$.datepicker._hideDatepicker();
825	},
826
827	/* Adjust one of the date sub-fields. */
828	_adjustDate: function(id, offset, period) {
829		var target = $(id);
830		var inst = this._getInst(target[0]);
831		if (this._isDisabledDatepicker(target[0])) {
832			return;
833		}
834		this._adjustInstDate(inst, offset +
835			(period == 'M' ? this._get(inst, 'showCurrentAtPos') : 0), // undo positioning
836			period);
837		this._updateDatepicker(inst);
838	},
839
840	/* Action for current link. */
841	_gotoToday: function(id) {
842		var target = $(id);
843		var inst = this._getInst(target[0]);
844		if (this._get(inst, 'gotoCurrent') && inst.currentDay) {
845			inst.selectedDay = inst.currentDay;
846			inst.drawMonth = inst.selectedMonth = inst.currentMonth;
847			inst.drawYear = inst.selectedYear = inst.currentYear;
848		}
849		else {
850			var date = new Date();
851			inst.selectedDay = date.getDate();
852			inst.drawMonth = inst.selectedMonth = date.getMonth();
853			inst.drawYear = inst.selectedYear = date.getFullYear();
854		}
855		this._notifyChange(inst);
856		this._adjustDate(target);
857	},
858
859	/* Action for selecting a new month/year. */
860	_selectMonthYear: function(id, select, period) {
861		var target = $(id);
862		var inst = this._getInst(target[0]);
863		inst._selectingMonthYear = false;
864		inst['selected' + (period == 'M' ? 'Month' : 'Year')] =
865		inst['draw' + (period == 'M' ? 'Month' : 'Year')] =
866			parseInt(select.options[select.selectedIndex].value,10);
867		this._notifyChange(inst);
868		this._adjustDate(target);
869	},
870
871	/* Restore input focus after not changing month/year. */
872	_clickMonthYear: function(id) {
873		var target = $(id);
874		var inst = this._getInst(target[0]);
875		if (inst.input && inst._selectingMonthYear) {
876			setTimeout(function() {
877				inst.input.focus();
878			}, 0);
879		}
880		inst._selectingMonthYear = !inst._selectingMonthYear;
881	},
882
883	/* Action for selecting a day. */
884	_selectDay: function(id, month, year, td) {
885		var target = $(id);
886		if ($(td).hasClass(this._unselectableClass) || this._isDisabledDatepicker(target[0])) {
887			return;
888		}
889		var inst = this._getInst(target[0]);
890		inst.selectedDay = inst.currentDay = $('a', td).html();
891		inst.selectedMonth = inst.currentMonth = month;
892		inst.selectedYear = inst.currentYear = year;
893		this._selectDate(id, this._formatDate(inst,
894			inst.currentDay, inst.currentMonth, inst.currentYear));
895	},
896
897	/* Erase the input field and hide the date picker. */
898	_clearDate: function(id) {
899		var target = $(id);
900		var inst = this._getInst(target[0]);
901		this._selectDate(target, '');
902	},
903
904	/* Update the input field with the selected date. */
905	_selectDate: function(id, dateStr) {
906		var target = $(id);
907		var inst = this._getInst(target[0]);
908		dateStr = (dateStr != null ? dateStr : this._formatDate(inst));
909		if (inst.input)
910			inst.input.val(dateStr);
911		this._updateAlternate(inst);
912		var onSelect = this._get(inst, 'onSelect');
913		if (onSelect)
914			onSelect.apply((inst.input ? inst.input[0] : null), [dateStr, inst]);  // trigger custom callback
915		else if (inst.input)
916			inst.input.trigger('change'); // fire the change event
917		if (inst.inline)
918			this._updateDatepicker(inst);
919		else {
920			this._hideDatepicker();
921			this._lastInput = inst.input[0];
922			if (typeof(inst.input[0]) != 'object')
923				inst.input.focus(); // restore focus
924			this._lastInput = null;
925		}
926	},
927
928	/* Update any alternate field to synchronise with the main field. */
929	_updateAlternate: function(inst) {
930		var altField = this._get(inst, 'altField');
931		if (altField) { // update alternate field too
932			var altFormat = this._get(inst, 'altFormat') || this._get(inst, 'dateFormat');
933			var date = this._getDate(inst);
934			var dateStr = this.formatDate(altFormat, date, this._getFormatConfig(inst));
935			$(altField).each(function() { $(this).val(dateStr); });
936		}
937	},
938
939	/* Set as beforeShowDay function to prevent selection of weekends.
940	   @param  date  Date - the date to customise
941	   @return [boolean, string] - is this date selectable?, what is its CSS class? */
942	noWeekends: function(date) {
943		var day = date.getDay();
944		return [(day > 0 && day < 6), ''];
945	},
946
947	/* Set as calculateWeek to determine the week of the year based on the ISO 8601 definition.
948	   @param  date  Date - the date to get the week for
949	   @return  number - the number of the week within the year that contains this date */
950	iso8601Week: function(date) {
951		var checkDate = new Date(date.getTime());
952		// Find Thursday of this week starting on Monday
953		checkDate.setDate(checkDate.getDate() + 4 - (checkDate.getDay() || 7));
954		var time = checkDate.getTime();
955		checkDate.setMonth(0); // Compare with Jan 1
956		checkDate.setDate(1);
957		return Math.floor(Math.round((time - checkDate) / 86400000) / 7) + 1;
958	},
959
960	/* Parse a string value into a date object.
961	   See formatDate below for the possible formats.
962
963	   @param  format    string - the expected format of the date
964	   @param  value     string - the date in the above format
965	   @param  settings  Object - attributes include:
966	                     shortYearCutoff  number - the cutoff year for determining the century (optional)
967	                     dayNamesShort    string[7] - abbreviated names of the days from Sunday (optional)
968	                     dayNames         string[7] - names of the days from Sunday (optional)
969	                     monthNamesShort  string[12] - abbreviated names of the months (optional)
970	                     monthNames       string[12] - names of the months (optional)
971	   @return  Date - the extracted date value or null if value is blank */
972	parseDate: function (format, value, settings) {
973		if (format == null || value == null)
974			throw 'Invalid arguments';
975		value = (typeof value == 'object' ? value.toString() : value + '');
976		if (value == '')
977			return null;
978		var shortYearCutoff = (settings ? settings.shortYearCutoff : null) || this._defaults.shortYearCutoff;
979		shortYearCutoff = (typeof shortYearCutoff != 'string' ? shortYearCutoff :
980				new Date().getFullYear() % 100 + parseInt(shortYearCutoff, 10));
981		var dayNamesShort = (settings ? settings.dayNamesShort : null) || this._defaults.dayNamesShort;
982		var dayNames = (settings ? settings.dayNames : null) || this._defaults.dayNames;
983		var monthNamesShort = (settings ? settings.monthNamesShort : null) || this._defaults.monthNamesShort;
984		var monthNames = (settings ? settings.monthNames : null) || this._defaults.monthNames;
985		var year = -1;
986		var month = -1;
987		var day = -1;
988		var doy = -1;
989		var literal = false;
990		// Check whether a format character is doubled
991		var lookAhead = function(match) {
992			var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) == match);
993			if (matches)
994				iFormat++;
995			return matches;
996		};
997		// Extract a number from the string value
998		var getNumber = function(match) {
999			var isDoubled = lookAhead(match);
1000			var size = (match == '@' ? 14 : (match == '!' ? 20 :
1001				(match == 'y' && isDoubled ? 4 : (match == 'o' ? 3 : 2))));
1002			var digits = new RegExp('^\\d{1,' + size + '}');
1003			var num = value.substring(iValue).match(digits);
1004			if (!num)
1005				throw 'Missing number at position ' + iValue;
1006			iValue += num[0].length;
1007			return parseInt(num[0], 10);
1008		};
1009		// Extract a name from the string value and convert to an index
1010		var getName = function(match, shortNames, longNames) {
1011			var names = $.map(lookAhead(match) ? longNames : shortNames, function (v, k) {
1012				return [ [k, v] ];
1013			}).sort(function (a, b) {
1014				return -(a[1].length - b[1].length);
1015			});
1016			var index = -1;
1017			$.each(names, function (i, pair) {
1018				var name = pair[1];
1019				if (value.substr(iValue, name.length).toLowerCase() == name.toLowerCase()) {
1020					index = pair[0];
1021					iValue += name.length;
1022					return false;
1023				}
1024			});
1025			if (index != -1)
1026				return index + 1;
1027			else
1028				throw 'Unknown name at position ' + iValue;
1029		};
1030		// Confirm that a literal character matches the string value
1031		var checkLiteral = function() {
1032			if (value.charAt(iValue) != format.charAt(iFormat))
1033				throw 'Unexpected literal at position ' + iValue;
1034			iValue++;
1035		};
1036		var iValue = 0;
1037		for (var iFormat = 0; iFormat < format.length; iFormat++) {
1038			if (literal)
1039				if (format.charAt(iFormat) == "'" && !lookAhead("'"))
1040					literal = false;
1041				else
1042					checkLiteral();
1043			else
1044				switch (format.charAt(iFormat)) {
1045					case 'd':
1046						day = getNumber('d');
1047						break;
1048					case 'D':
1049						getName('D', dayNamesShort, dayNames);
1050						break;
1051					case 'o':
1052						doy = getNumber('o');
1053						break;
1054					case 'm':
1055						month = getNumber('m');
1056						break;
1057					case 'M':
1058						month = getName('M', monthNamesShort, monthNames);
1059						break;
1060					case 'y':
1061						year = getNumber('y');
1062						break;
1063					case '@':
1064						var date = new Date(getNumber('@'));
1065						year = date.getFullYear();
1066						month = date.getMonth() + 1;
1067						day = date.getDate();
1068						break;
1069					case '!':
1070						var date = new Date((getNumber('!') - this._ticksTo1970) / 10000);
1071						year = date.getFullYear();
1072						month = date.getMonth() + 1;
1073						day = date.getDate();
1074						break;
1075					case "'":
1076						if (lookAhead("'"))
1077							checkLiteral();
1078						else
1079							literal = true;
1080						break;
1081					default:
1082						checkLiteral();
1083				}
1084		}
1085		if (iValue < value.length){
1086			throw "Extra/unparsed characters found in date: " + value.substring(iValue);
1087		}
1088		if (year == -1)
1089			year = new Date().getFullYear();
1090		else if (year < 100)
1091			year += new Date().getFullYear() - new Date().getFullYear() % 100 +
1092				(year <= shortYearCutoff ? 0 : -100);
1093		if (doy > -1) {
1094			month = 1;
1095			day = doy;
1096			do {
1097				var dim = this._getDaysInMonth(year, month - 1);
1098				if (day <= dim)
1099					break;
1100				month++;
1101				day -= dim;
1102			} while (true);
1103		}
1104		var date = this._daylightSavingAdjust(new Date(year, month - 1, day));
1105		if (date.getFullYear() != year || date.getMonth() + 1 != month || date.getDate() != day)
1106			throw 'Invalid date'; // E.g. 31/02/00
1107		return date;
1108	},
1109
1110	/* Standard date formats. */
1111	ATOM: 'yy-mm-dd', // RFC 3339 (ISO 8601)
1112	COOKIE: 'D, dd M yy',
1113	ISO_8601: 'yy-mm-dd',
1114	RFC_822: 'D, d M y',
1115	RFC_850: 'DD, dd-M-y',
1116	RFC_1036: 'D, d M y',
1117	RFC_1123: 'D, d M yy',
1118	RFC_2822: 'D, d M yy',
1119	RSS: 'D, d M y', // RFC 822
1120	TICKS: '!',
1121	TIMESTAMP: '@',
1122	W3C: 'yy-mm-dd', // ISO 8601
1123
1124	_ticksTo1970: (((1970 - 1) * 365 + Math.floor(1970 / 4) - Math.floor(1970 / 100) +
1125		Math.floor(1970 / 400)) * 24 * 60 * 60 * 10000000),
1126
1127	/* Format a date object into a string value.
1128	   The format can be combinations of the following:
1129	   d  - day of month (no leading zero)
1130	   dd - day of month (two digit)
1131	   o  - day of year (no leading zeros)
1132	   oo - day of year (three digit)
1133	   D  - day name short
1134	   DD - day name long
1135	   m  - month of year (no leading zero)
1136	   mm - month of year (two digit)
1137	   M  - month name short
1138	   MM - month name long
1139	   y  - year (two digit)
1140	   yy - year (four digit)
1141	   @ - Unix timestamp (ms since 01/01/1970)
1142	   ! - Windows ticks (100ns since 01/01/0001)
1143	   '...' - literal text
1144	   '' - single quote
1145
1146	   @param  format    string - the desired format of the date
1147	   @param  date      Date - the date value to format
1148	   @param  settings  Object - attributes include:
1149	                     dayNamesShort    string[7] - abbreviated names of the days from Sunday (optional)
1150	                     dayNames         string[7] - names of the days from Sunday (optional)
1151	                     monthNamesShort  string[12] - abbreviated names of the months (optional)
1152	                     monthNames       string[12] - names of the months (optional)
1153	   @return  string - the date in the above format */
1154	formatDate: function (format, date, settings) {
1155		if (!date)
1156			return '';
1157		var dayNamesShort = (settings ? settings.dayNamesShort : null) || this._defaults.dayNamesShort;
1158		var dayNames = (settings ? settings.dayNames : null) || this._defaults.dayNames;
1159		var monthNamesShort = (settings ? settings.monthNamesShort : null) || this._defaults.monthNamesShort;
1160		var monthNames = (settings ? settings.monthNames : null) || this._defaults.monthNames;
1161		// Check whether a format character is doubled
1162		var lookAhead = function(match) {
1163			var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) == match);
1164			if (matches)
1165				iFormat++;
1166			return matches;
1167		};
1168		// Format a number, with leading zero if necessary
1169		var formatNumber = function(match, value, len) {
1170			var num = '' + value;
1171			if (lookAhead(match))
1172				while (num.length < len)
1173					num = '0' + num;
1174			return num;
1175		};
1176		// Format a name, short or long as requested
1177		var formatName = function(match, value, shortNames, longNames) {
1178			return (lookAhead(match) ? longNames[value] : shortNames[value]);
1179		};
1180		var output = '';
1181		var literal = false;
1182		if (date)
1183			for (var iFormat = 0; iFormat < format.length; iFormat++) {
1184				if (literal)
1185					if (format.charAt(iFormat) == "'" && !lookAhead("'"))
1186						literal = false;
1187					else
1188						output += format.charAt(iFormat);
1189				else
1190					switch (format.charAt(iFormat)) {
1191						case 'd':
1192							output += formatNumber('d', date.getDate(), 2);
1193							break;
1194						case 'D':
1195							output += formatName('D', date.getDay(), dayNamesShort, dayNames);
1196							break;
1197						case 'o':
1198							output += formatNumber('o',
1199								Math.round((new Date(date.getFullYear(), date.getMonth(), date.getDate()).getTime() - new Date(date.getFullYear(), 0, 0).getTime()) / 86400000), 3);
1200							break;
1201						case 'm':
1202							output += formatNumber('m', date.getMonth() + 1, 2);
1203							break;
1204						case 'M':
1205							output += formatName('M', date.getMonth(), monthNamesShort, monthNames);
1206							break;
1207						case 'y':
1208							output += (lookAhead('y') ? date.getFullYear() :
1209								(date.getYear() % 100 < 10 ? '0' : '') + date.getYear() % 100);
1210							break;
1211						case '@':
1212							output += date.getTime();
1213							break;
1214						case '!':
1215							output += date.getTime() * 10000 + this._ticksTo1970;
1216							break;
1217						case "'":
1218							if (lookAhead("'"))
1219								output += "'";
1220							else
1221								literal = true;
1222							break;
1223						default:
1224							output += format.charAt(iFormat);
1225					}
1226			}
1227		return output;
1228	},
1229
1230	/* Extract all possible characters from the date format. */
1231	_possibleChars: function (format) {
1232		var chars = '';
1233		var literal = false;
1234		// Check whether a format character is doubled
1235		var lookAhead = function(match) {
1236			var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) == match);
1237			if (matches)
1238				iFormat++;
1239			return matches;
1240		};
1241		for (var iFormat = 0; iFormat < format.length; iFormat++)
1242			if (literal)
1243				if (format.charAt(iFormat) == "'" && !lookAhead("'"))
1244					literal = false;
1245				else
1246					chars += format.charAt(iFormat);
1247			else
1248				switch (format.charAt(iFormat)) {
1249					case 'd': case 'm': case 'y': case '@':
1250						chars += '0123456789';
1251						break;
1252					case 'D': case 'M':
1253						return null; // Accept anything
1254					case "'":
1255						if (lookAhead("'"))
1256							chars += "'";
1257						else
1258							literal = true;
1259						break;
1260					default:
1261						chars += format.charAt(iFormat);
1262				}
1263		return chars;
1264	},
1265
1266	/* Get a setting value, defaulting if necessary. */
1267	_get: function(inst, name) {
1268		return inst.settings[name] !== undefined ?
1269			inst.settings[name] : this._defaults[name];
1270	},
1271
1272	/* Parse existing date and initialise date picker. */
1273	_setDateFromField: function(inst, noDefault) {
1274		if (inst.input.val() == inst.lastVal) {
1275			return;
1276		}
1277		var dateFormat = this._get(inst, 'dateFormat');
1278		var dates = inst.lastVal = inst.input ? inst.input.val() : null;
1279		var date, defaultDate;
1280		date = defaultDate = this._getDefaultDate(inst);
1281		var settings = this._getFormatConfig(inst);
1282		try {
1283			date = this.parseDate(dateFormat, dates, settings) || defaultDate;
1284		} catch (event) {
1285			this.log(event);
1286			dates = (noDefault ? '' : dates);
1287		}
1288		inst.selectedDay = date.getDate();
1289		inst.drawMonth = inst.selectedMonth = date.getMonth();
1290		inst.drawYear = inst.selectedYear = date.getFullYear();
1291		inst.currentDay = (dates ? date.getDate() : 0);
1292		inst.currentMonth = (dates ? date.getMonth() : 0);
1293		inst.currentYear = (dates ? date.getFullYear() : 0);
1294		this._adjustInstDate(inst);
1295	},
1296
1297	/* Retrieve the default date shown on opening. */
1298	_getDefaultDate: function(inst) {
1299		return this._restrictMinMax(inst,
1300			this._determineDate(inst, this._get(inst, 'defaultDate'), new Date()));
1301	},
1302
1303	/* A date may be specified as an exact value or a relative one. */
1304	_determineDate: function(inst, date, defaultDate) {
1305		var offsetNumeric = function(offset) {
1306			var date = new Date();
1307			date.setDate(date.getDate() + offset);
1308			return date;
1309		};
1310		var offsetString = function(offset) {
1311			try {
1312				return $.datepicker.parseDate($.datepicker._get(inst, 'dateFormat'),
1313					offset, $.datepicker._getFormatConfig(inst));
1314			}
1315			catch (e) {
1316				// Ignore
1317			}
1318			var date = (offset.toLowerCase().match(/^c/) ?
1319				$.datepicker._getDate(inst) : null) || new Date();
1320			var year = date.getFullYear();
1321			var month = date.getMonth();
1322			var day = date.getDate();
1323			var pattern = /([+-]?[0-9]+)\s*(d|D|w|W|m|M|y|Y)?/g;
1324			var matches = pattern.exec(offset);
1325			while (matches) {
1326				switch (matches[2] || 'd') {
1327					case 'd' : case 'D' :
1328						day += parseInt(matches[1],10); break;
1329					case 'w' : case 'W' :
1330						day += parseInt(matches[1],10) * 7; break;
1331					case 'm' : case 'M' :
1332						month += parseInt(matches[1],10);
1333						day = Math.min(day, $.datepicker._getDaysInMonth(year, month));
1334						break;
1335					case 'y': case 'Y' :
1336						year += parseInt(matches[1],10);
1337						day = Math.min(day, $.datepicker._getDaysInMonth(year, month));
1338						break;
1339				}
1340				matches = pattern.exec(offset);
1341			}
1342			return new Date(year, month, day);
1343		};
1344		var newDate = (date == null || date === '' ? defaultDate : (typeof date == 'string' ? offsetString(date) :
1345			(typeof date == 'number' ? (isNaN(date) ? defaultDate : offsetNumeric(date)) : new Date(date.getTime()))));
1346		newDate = (newDate && newDate.toString() == 'Invalid Date' ? defaultDate : newDate);
1347		if (newDate) {
1348			newDate.setHours(0);
1349			newDate.setMinutes(0);
1350			newDate.setSeconds(0);
1351			newDate.setMilliseconds(0);
1352		}
1353		return this._daylightSavingAdjust(newDate);
1354	},
1355
1356	/* Handle switch to/from daylight saving.
1357	   Hours may be non-zero on daylight saving cut-over:
1358	   > 12 when midnight changeover, but then cannot generate
1359	   midnight datetime, so jump to 1AM, otherwise reset.
1360	   @param  date  (Date) the date to check
1361	   @return  (Date) the corrected date */
1362	_daylightSavingAdjust: function(date) {
1363		if (!date) return null;
1364		date.setHours(date.getHours() > 12 ? date.getHours() + 2 : 0);
1365		return date;
1366	},
1367
1368	/* Set the date(s) directly. */
1369	_setDate: function(inst, date, noChange) {
1370		var clear = !date;
1371		var origMonth = inst.selectedMonth;
1372		var origYear = inst.selectedYear;
1373		var newDate = this._restrictMinMax(inst, this._determineDate(inst, date, new Date()));
1374		inst.selectedDay = inst.currentDay = newDate.getDate();
1375		inst.drawMonth = inst.selectedMonth = inst.currentMonth = newDate.getMonth();
1376		inst.drawYear = inst.selectedYear = inst.currentYear = newDate.getFullYear();
1377		if ((origMonth != inst.selectedMonth || origYear != inst.selectedYear) && !noChange)
1378			this._notifyChange(inst);
1379		this._adjustInstDate(inst);
1380		if (inst.input) {
1381			inst.input.val(clear ? '' : this._formatDate(inst));
1382		}
1383	},
1384
1385	/* Retrieve the date(s) directly. */
1386	_getDate: function(inst) {
1387		var startDate = (!inst.currentYear || (inst.input && inst.input.val() == '') ? null :
1388			this._daylightSavingAdjust(new Date(
1389			inst.currentYear, inst.currentMonth, inst.currentDay)));
1390			return startDate;
1391	},
1392
1393	/* Generate the HTML for the current state of the date picker. */
1394	_generateHTML: function(inst) {
1395		var today = new Date();
1396		today = this._daylightSavingAdjust(
1397			new Date(today.getFullYear(), today.getMonth(), today.getDate())); // clear time
1398		var isRTL = this._get(inst, 'isRTL');
1399		var showButtonPanel = this._get(inst, 'showButtonPanel');
1400		var hideIfNoPrevNext = this._get(inst, 'hideIfNoPrevNext');
1401		var navigationAsDateFormat = this._get(inst, 'navigationAsDateFormat');
1402		var numMonths = this._getNumberOfMonths(inst);
1403		var showCurrentAtPos = this._get(inst, 'showCurrentAtPos');
1404		var stepMonths = this._get(inst, 'stepMonths');
1405		var isMultiMonth = (numMonths[0] != 1 || numMonths[1] != 1);
1406		var currentDate = this._daylightSavingAdjust((!inst.currentDay ? new Date(9999, 9, 9) :
1407			new Date(inst.currentYear, inst.currentMonth, inst.currentDay)));
1408		var minDate = this._getMinMaxDate(inst, 'min');
1409		var maxDate = this._getMinMaxDate(inst, 'max');
1410		var drawMonth = inst.drawMonth - showCurrentAtPos;
1411		var drawYear = inst.drawYear;
1412		if (drawMonth < 0) {
1413			drawMonth += 12;
1414			drawYear--;
1415		}
1416		if (maxDate) {
1417			var maxDraw = this._daylightSavingAdjust(new Date(maxDate.getFullYear(),
1418				maxDate.getMonth() - (numMonths[0] * numMonths[1]) + 1, maxDate.getDate()));
1419			maxDraw = (minDate && maxDraw < minDate ? minDate : maxDraw);
1420			while (this._daylightSavingAdjust(new Date(drawYear, drawMonth, 1)) > maxDraw) {
1421				drawMonth--;
1422				if (drawMonth < 0) {
1423					drawMonth = 11;
1424					drawYear--;
1425				}
1426			}
1427		}
1428		inst.drawMonth = drawMonth;
1429		inst.drawYear = drawYear;
1430		var prevText = this._get(inst, 'prevText');
1431		prevText = (!navigationAsDateFormat ? prevText : this.formatDate(prevText,
1432			this._daylightSavingAdjust(new Date(drawYear, drawMonth - stepMonths, 1)),
1433			this._getFormatConfig(inst)));
1434		var prev = (this._canAdjustMonth(inst, -1, drawYear, drawMonth) ?
1435			'<a class="ui-datepicker-prev ui-corner-all" onclick="DP_jQuery_' + dpuuid +
1436			'.datepicker._adjustDate(\'#' + inst.id + '\', -' + stepMonths + ', \'M\');"' +
1437			' title="' + prevText + '"><span class="ui-icon ui-icon-circle-triangle-' + ( isRTL ? 'e' : 'w') + '">' + prevText + '</span></a>' :
1438			(hideIfNoPrevNext ? '' : '<a class="ui-datepicker-prev ui-corner-all ui-state-disabled" title="'+ prevText +'"><span class="ui-icon ui-icon-circle-triangle-' + ( isRTL ? 'e' : 'w') + '">' + prevText + '</span></a>'));
1439		var nextText = this._get(inst, 'nextText');
1440		nextText = (!navigationAsDateFormat ? nextText : this.formatDate(nextText,
1441			this._daylightSavingAdjust(new Date(drawYear, drawMonth + stepMonths, 1)),
1442			this._getFormatConfig(inst)));
1443		var next = (this._canAdjustMonth(inst, +1, drawYear, drawMonth) ?
1444			'<a class="ui-datepicker-next ui-corner-all" onclick="DP_jQuery_' + dpuuid +
1445			'.datepicker._adjustDate(\'#' + inst.id + '\', +' + stepMonths + ', \'M\');"' +
1446			' title="' + nextText + '"><span class="ui-icon ui-icon-circle-triangle-' + ( isRTL ? 'w' : 'e') + '">' + nextText + '</span></a>' :
1447			(hideIfNoPrevNext ? '' : '<a class="ui-datepicker-next ui-corner-all ui-state-disabled" title="'+ nextText + '"><span class="ui-icon ui-icon-circle-triangle-' + ( isRTL ? 'w' : 'e') + '">' + nextText + '</span></a>'));
1448		var currentText = this._get(inst, 'currentText');
1449		var gotoDate = (this._get(inst, 'gotoCurrent') && inst.currentDay ? currentDate : today);
1450		currentText = (!navigationAsDateFormat ? currentText :
1451			this.formatDate(currentText, gotoDate, this._getFormatConfig(inst)));
1452		var controls = (!inst.inline ? '<button type="button" class="ui-datepicker-close ui-state-default ui-priority-primary ui-corner-all" onclick="DP_jQuery_' + dpuuid +
1453			'.datepicker._hideDatepicker();">' + this._get(inst, 'closeText') + '</button>' : '');
1454		var buttonPanel = (showButtonPanel) ? '<div class="ui-datepicker-buttonpane ui-widget-content">' + (isRTL ? controls : '') +
1455			(this._isInRange(inst, gotoDate) ? '<button type="button" class="ui-datepicker-current ui-state-default ui-priority-secondary ui-corner-all" onclick="DP_jQuery_' + dpuuid +
1456			'.datepicker._gotoToday(\'#' + inst.id + '\');"' +
1457			'>' + currentText + '</button>' : '') + (isRTL ? '' : controls) + '</div>' : '';
1458		var firstDay = parseInt(this._get(inst, 'firstDay'),10);
1459		firstDay = (isNaN(firstDay) ? 0 : firstDay);
1460		var showWeek = this._get(inst, 'showWeek');
1461		var dayNames = this._get(inst, 'dayNames');
1462		var dayNamesShort = this._get(inst, 'dayNamesShort');
1463		var dayNamesMin = this._get(inst, 'dayNamesMin');
1464		var monthNames = this._get(inst, 'monthNames');
1465		var monthNamesShort = this._get(inst, 'monthNamesShort');
1466		var beforeShowDay = this._get(inst, 'beforeShowDay');
1467		var showOtherMonths = this._get(inst, 'showOtherMonths');
1468		var selectOtherMonths = this._get(inst, 'selectOtherMonths');
1469		var calculateWeek = this._get(inst, 'calculateWeek') || this.iso8601Week;
1470		var defaultDate = this._getDefaultDate(inst);
1471		var html = '';
1472		for (var row = 0; row < numMonths[0]; row++) {
1473			var group = '';
1474			this.maxRows = 4;
1475			for (var col = 0; col < numMonths[1]; col++) {
1476				var selectedDate = this._daylightSavingAdjust(new Date(drawYear, drawMonth, inst.selectedDay));
1477				var cornerClass = ' ui-corner-all';
1478				var calender = '';
1479				if (isMultiMonth) {
1480					calender += '<div class="ui-datepicker-group';
1481					if (numMonths[1] > 1)
1482						switch (col) {
1483							case 0: calender += ' ui-datepicker-group-first';
1484								cornerClass = ' ui-corner-' + (isRTL ? 'right' : 'left'); break;
1485							case numMonths[1]-1: calender += ' ui-datepicker-group-last';
1486								cornerClass = ' ui-corner-' + (isRTL ? 'left' : 'right'); break;
1487							default: calender += ' ui-datepicker-group-middle'; cornerClass = ''; break;
1488						}
1489					calender += '">';
1490				}
1491				calender += '<div class="ui-datepicker-header ui-widget-header ui-helper-clearfix' + cornerClass + '">' +
1492					(/all|left/.test(cornerClass) && row == 0 ? (isRTL ? next : prev) : '') +
1493					(/all|right/.test(cornerClass) && row == 0 ? (isRTL ? prev : next) : '') +
1494					this._generateMonthYearHeader(inst, drawMonth, drawYear, minDate, maxDate,
1495					row > 0 || col > 0, monthNames, monthNamesShort) + // draw month headers
1496					'</div><table class="ui-datepicker-calendar"><thead>' +
1497					'<tr>';
1498				var thead = (showWeek ? '<th class="ui-datepicker-week-col">' + this._get(inst, 'weekHeader') + '</th>' : '');
1499				for (var dow = 0; dow < 7; dow++) { // days of the week
1500					var day = (dow + firstDay) % 7;
1501					thead += '<th' + ((dow + firstDay + 6) % 7 >= 5 ? ' class="ui-datepicker-week-end"' : '') + '>
1501' +
1502						'<span title="' + dayNames[day] + '">' + dayNamesMin[day] + '</span></th>';
1503				}
1504				calender += thead + '</tr></thead><tbody>';
1505				var daysInMonth = this._getDaysInMonth(drawYear, drawMonth);
1506				if (drawYear == inst.selectedYear && drawMonth == inst.selectedMonth)
1507					inst.selectedDay = Math.min(inst.selectedDay, daysInMonth);
1508				var leadDays = (this._getFirstDayOfMonth(drawYear, drawMonth) - firstDay + 7) % 7;
1509				var curRows = Math.ceil((leadDays + daysInMonth) / 7); // calculate the number of rows to generate
1510				var numRows = (isMultiMonth ? this.maxRows > curRows ? this.maxRows : curRows : curRows); //If multiple months, use the higher number of rows (see #7043)
1511				this.maxRows = numRows;
1512				var printDate = this._daylightSavingAdjust(new Date(drawYear, drawMonth, 1 - leadDays));
1513				for (var dRow = 0; dRow < numRows; dRow++) { // create date picker rows
1514					calender += '<tr>';
1515					var tbody = (!showWeek ? '' : '<td class="ui-datepicker-week-col">' +
1516						this._get(inst, 'calculateWeek')(printDate) + '</td>');
1517					for (var dow = 0; dow < 7; dow++) { // create date picker days
1518						var daySettings = (beforeShowDay ?
1519							beforeShowDay.apply((inst.input ? inst.input[0] : null), [printDate]) : [true, '']);
1520						var otherMonth = (printDate.getMonth() != drawMonth);
1521						var unselectable = (otherMonth && !selectOtherMonths) || !daySettings[0] ||
1522							(minDate && printDate < minDate) || (maxDate && printDate > maxDate);
1523						tbody += '<td class="' +
1524							((dow + firstDay + 6) % 7 >= 5 ? ' ui-datepicker-week-end' : '') + // highlight weekends
1525							(otherMonth ? ' ui-datepicker-other-month' : '') + // highlight days from other months
1526							((printDate.getTime() == selectedDate.getTime() && drawMonth == inst.selectedMonth && inst._keyEvent) || // user pressed key
1527							(defaultDate.getTime() == printDate.getTime() && defaultDate.getTime() == selectedDate.getTime()) ?
1528							// or defaultDate is current printedDate and defaultDate is selectedDate
1529							' ' + this._dayOverClass : '') + // highlight selected day
1530							(unselectable ? ' ' + this._unselectableClass + ' ui-state-disabled': '') +  // highlight unselectable days
1531							(otherMonth && !showOtherMonths ? '' : ' ' + daySettings[1] + // highlight custom dates
1532							(printDate.getTime() == currentDate.getTime() ? ' ' + this._currentClass : '') + // highlight selected day
1533							(printDate.getTime() == today.getTime() ? ' ui-datepicker-today' : '')) + '"' + // highlight today (if different)
1534							((!otherMonth || showOtherMonths) && daySettings[2] ? ' title="' + daySettings[2] + '"' : '') + // cell title
1535							(unselectable ? '' : ' onclick="DP_jQuery_' + dpuuid + '.datepicker._selectDay(\'#' +
1536							inst.id + '\',' + printDate.getMonth() + ',' + printDate.getFullYear() + ', this);return false;"') + '>' + // actions
1537							(otherMonth && !showOtherMonths ? '&#xa0;' : // display for other months
1538							(unselectable ? '<span class="ui-state-default">' + printDate.getDate() + '</span>' : '<a class="ui-state-default' +
1539							(printDate.getTime() == today.getTime() ? ' ui-state-highlight' : '') +
1540							(printDate.getTime() == currentDate.getTime() ? ' ui-state-active' : '') + // highlight selected day
1541							(otherMonth ? ' ui-priority-secondary' : '') + // distinguish dates from other months
1542							'" href="#">' + printDate.getDate() + '</a>')) + '</td>'; // display selectable date
1543						printDate.setDate(printDate.getDate() + 1);
1544						printDate = this._daylightSavingAdjust(printDate);
1545					}
1546					calender += tbody + '</tr>';
1547				}
1548				drawMonth++;
1549				if (drawMonth > 11) {
1550					drawMonth = 0;
1551					drawYear++;
1552				}
1553				calender += '</tbody></table>' + (isMultiMonth ? '</div>' + 
1554							((numMonths[0] > 0 && col == numMonths[1]-1) ? '<div class="ui-datepicker-row-break"></div>' : '') : '');
1555				group += calender;
1556			}
1557			html += group;
1558		}
1559		html += buttonPanel + ($.browser.msie && parseInt($.browser.version,10) < 7 && !inst.inline ?
1560			'<iframe src="javascript:false;" class="ui-datepicker-cover" frameborder="0"></iframe>' : '');
1561		inst._keyEvent = false;
1562		return html;
1563	},
1564
1565	/* Generate the month and year header. */
1566	_generateMonthYearHeader: function(inst, drawMonth, drawYear, minDate, maxDate,
1567			secondary, monthNames, monthNamesShort) {
1568		var changeMonth = this._get(inst, 'changeMonth');
1569		var changeYear = this._get(inst, 'changeYear');
1570		var showMonthAfterYear = this._get(inst, 'showMonthAfterYear');
1571		var html = '<div class="ui-datepicker-title">';
1572		var monthHtml = '';
1573		// month selection
1574		if (secondary || !changeMonth)
1575			monthHtml += '<span class="ui-datepicker-month">' + monthNames[drawMonth] + '</span>';
1576		else {
1577			var inMinYear = (minDate && minDate.getFullYear() == drawYear);
1578			var inMaxYear = (maxDate && maxDate.getFullYear() == drawYear);
1579			monthHtml += '<select class="ui-datepicker-month" ' +
1580				'onchange="DP_jQuery_' + dpuuid + '.datepicker._selectMonthYear(\'#' + inst.id + '\', this, \'M\');" ' +
1581				'onclick="DP_jQuery_' + dpuuid + '.datepicker._clickMonthYear(\'#' + inst.id + '\');"' +
1582			 	'>';
1583			for (var month = 0; month < 12; month++) {
1584				if ((!inMinYear || month >= minDate.getMonth()) &&
1585						(!inMaxYear || month <= maxDate.getMonth()))
1586					monthHtml += '<option value="' + month + '"' +
1587						(month == drawMonth ? ' selected="selected"' : '') +
1588						'>' + monthNamesShort[month] + '</option>';
1589			}
1590			monthHtml += '</select>';
1591		}
1592		if (!showMonthAfterYear)
1593			html += monthHtml + (secondary || !(changeMonth && changeYear) ? '&#xa0;' : '');
1594		// year selection
1595		if ( !inst.yearshtml ) {
1596			inst.yearshtml = '';
1597			if (secondary || !changeYear)
1598				html += '<span class="ui-datepicker-year">' + drawYear + '</span>';
1599			else {
1600				// determine range of years to display
1601				var years = this._get(inst, 'yearRange').split(':');
1602				var thisYear = new Date().getFullYear();
1603				var determineYear = function(value) {
1604					var year = (value.match(/c[+-].*/) ? drawYear + parseInt(value.substring(1), 10) :
1605						(value.match(/[+-].*/) ? thisYear + parseInt(value, 10) :
1606						parseInt(value, 10)));
1607					return (isNaN(year) ? thisYear : year);
1608				};
1609				var year = determineYear(years[0]);
1610				var endYear = Math.max(year, determineYear(years[1] || ''));
1611				year = (minDate ? Math.max(year, minDate.getFullYear()) : year);
1612				endYear = (maxDate ? Math.min(endYear, maxDate.getFullYear()) : endYear);
1613				inst.yearshtml += '<select class="ui-datepicker-year" ' +
1614					'onchange="DP_jQuery_' + dpuuid + '.datepicker._selectMonthYear(\'#' + inst.id + '\', this, \'Y\');" ' +
1615					'onclick="DP_jQuery_' + dpuuid + '.datepicker._clickMonthYear(\'#' + inst.id + '\');"' +
1616					'>';
1617				for (; year <= endYear; year++) {
1618					inst.yearshtml += '<option value="' + year + '"' +
1619						(year == drawYear ? ' selected="selected"' : '') +
1620						'>' + year + '</option>';
1621				}
1622				inst.yearshtml += '</select>';
1623				
1624				html += inst.yearshtml;
1625				inst.yearshtml = null;
1626			}
1627		}
1628		html += this._get(inst, 'yearSuffix');
1629		if (showMonthAfterYear)
1630			html += (secondary || !(changeMonth && changeYear) ? '&#xa0;' : '') + monthHtml;
1631		html += '</div>'; // Close datepicker_header
1632		return html;
1633	},
1634
1635	/* Adjust one of the date sub-fields. */
1636	_adjustInstDate: function(inst, offset, period) {
1637		var year = inst.drawYear + (period == 'Y' ? offset : 0);
1638		var month = inst.drawMonth + (period == 'M' ? offset : 0);
1639		var day = Math.min(inst.selectedDay, this._getDaysInMonth(year, month)) +
1640			(period == 'D' ? offset : 0);
1641		var date = this._restrictMinMax(inst,
1642			this._daylightSavingAdjust(new Date(year, month, day)));
1643		inst.selectedDay = date.getDate();
1644		inst.drawMonth = inst.selectedMonth = date.getMonth();
1645		inst.drawYear = inst.selectedYear = date.getFullYear();
1646		if (period == 'M' || period == 'Y')
1647			this._notifyChange(inst);
1648	},
1649
1650	/* Ensure a date is within any min/max bounds. */
1651	_restrictMinMax: function(inst, date) {
1652		var minDate = this._getMinMaxDate(inst, 'min');
1653		var maxDate = this._getMinMaxDate(inst, 'max');
1654		var newDate = (minDate && date < minDate ? minDate : date);
1655		newDate = (maxDate && newDate > maxDate ? maxDate : newDate);
1656		return newDate;
1657	},
1658
1659	/* Notify change of month/year. */
1660	_notifyChange: function(inst) {
1661		var onChange = this._get(inst, 'onChangeMonthYear');
1662		if (onChange)
1663			onChange.apply((inst.input ? inst.input[0] : null),
1664				[inst.selectedYear, inst.selectedMonth + 1, inst]);
1665	},
1666
1667	/* Determine the number of months to show. */
1668	_getNumberOfMonths: function(inst) {
1669		var numMonths = this._get(inst, 'numberOfMonths');
1670		return (numMonths == null ? [1, 1] : (typeof numMonths == 'number' ? [1, numMonths] : numMonths));
1671	},
1672
1673	/* Determine the current maximum date - ensure no time components are set. */
1674	_getMinMaxDate: function(inst, minMax) {
1675		return this._determineDate(inst, this._get(inst, minMax + 'Date'), null);
1676	},
1677
1678	/* Find the number of days in a given month. */
1679	_getDaysInMonth: function(year, month) {
1680		return 32 - this._daylightSavingAdjust(new Date(year, month, 32)).getDate();
1681	},
1682
1683	/* Find the day of the week of the first of a month. */
1684	_getFirstDayOfMonth: function(year, month) {
1685		return new Date(year, month, 1).getDay();
1686	},
1687
1688	/* Determines if we should allow a "next/prev" month display change. */
1689	_canAdjustMonth: function(inst, offset, curYear, curMonth) {
1690		var numMonths = this._getNumberOfMonths(inst);
1691		var date = this._daylightSavingAdjust(new Date(curYear,
1692			curMonth + (offset < 0 ? offset : numMonths[0] * numMonths[1]), 1));
1693		if (offset < 0)
1694			date.setDate(this._getDaysInMonth(date.getFullYear(), date.getMonth()));
1695		return this._isInRange(inst, date);
1696	},
1697
1698	/* Is the given date in the accepted range? */
1699	_isInRange: function(inst, date) {
1700		var minDate = this._getMinMaxDate(inst, 'min');
1701		var maxDate = this._getMinMaxDate(inst, 'max');
1702		return ((!minDate || date.getTime() >= minDate.getTime()) &&
1703			(!maxDate || date.getTime() <= maxDate.getTime()));
1704	},
1705
1706	/* Provide the configuration settings for formatting/parsing. */
1707	_getFormatConfig: function(inst) {
1708		var shortYearCutoff = this._get(inst, 'shortYearCutoff');
1709		shortYearCutoff = (typeof shortYearCutoff != 'string' ? shortYearCutoff :
1710			new Date().getFullYear() % 100 + parseInt(shortYearCutoff, 10));
1711		return {shortYearCutoff: shortYearCutoff,
1712			dayNamesShort: this._get(inst, 'dayNamesShort'), dayNames: this._get(inst, 'dayNames'),
1713			monthNamesShort: this._get(inst, 'monthNamesShort'), monthNames: this._get(inst, 'monthNames')};
1714	},
1715
1716	/* Format the given date for display. */
1717	_formatDate: function(inst, day, month, year) {
1718		if (!day) {
1719			inst.currentDay = inst.selectedDay;
1720			inst.currentMonth = inst.selectedMonth;
1721			inst.currentYear = inst.selectedYear;
1722		}
1723		var date = (day ? (typeof day == 'object' ? day :
1724			this._daylightSavingAdjust(new Date(year, month, day))) :
1725			this._daylightSavingAdjust(new Date(inst.currentYear, inst.currentMonth, inst.currentDay)));
1726		return this.formatDate(this._get(inst, 'dateFormat'), date, this._getFormatConfig(inst));
1727	}
1728});
1729
1730/*
1731 * Bind hover events for datepicker elements.
1732 * Done via delegate so the binding only occurs once in the lifetime of the parent div.
1733 * Global instActive, set by _updateDatepicker allows the handlers to find their way back to the active picker.
1734 */ 
1735function bindHover(dpDiv) {
1736	var selector = 'button, .ui-datepicker-prev, .ui-datepicker-next, .ui-datepicker-calendar td a';
1737	return dpDiv.bind('mouseout', function(event) {
1738			var elem = $( event.target ).closest( selector );
1739			if ( !elem.length ) {
1740				return;
1741			}
1742			elem.removeClass( "ui-state-hover ui-datepicker-prev-hover ui-datepicker-next-hover" );
1743		})
1744		.bind('mouseover', function(event) {
1745			var elem = $( event.target ).closest( selector );
1746			if ($.datepicker._isDisabledDatepicker( instActive.inline ? dpDiv.parent()[0] : instActive.input[0]) ||
1747					!elem.length ) {
1748				return;
1749			}
1750			elem.parents('.ui-datepicker-calendar').find('a').removeClass('ui-state-hover');
1751			elem.addClass('ui-state-hover');
1752			if (elem.hasClass('ui-datepicker-prev')) elem.addClass('ui-datepicker-prev-hover');
1753			if (elem.hasClass('ui-datepicker-next')) elem.addClass('ui-datepicker-next-hover');
1754		});
1755}
1756
1757/* jQuery extend now ignores nulls! */
1758function extendRemove(target, props) {
1759	$.extend(target, props);
1760	for (var name in props)
1761		if (props[name] == null || props[name] == undefined)
1762			target[name] = props[name];
1763	return target;
1764};
1765
1766/* Determine whether an object is an array. */
1767function isArray(a) {
1768	return (a && (($.browser.safari && typeof a == 'object' && a.length) ||
1769		(a.constructor && a.constructor.toString().match(/\Array\(\)/))));
1770};
1771
1772/* Invoke the datepicker functionality.
1773   @param  options  string - a command, optionally followed by additional parameters or
1774                    Object - settings for attaching new datepicker functionality
1775   @return  jQuery object */
1776$.fn.datepicker = function(options){
1777	
1778	/* Verify an empty collection wasn't passed - Fixes #6976 */
1779	if ( !this.length ) {
1780		return this;
1781	}
1782	
1783	/* Initialise the date picker. */
1784	if (!$.datepicker.initialized) {
1785		$(document).mousedown($.datepicker._checkExternalClick).
1786			find('body').append($.datepicker.dpDiv);
1787		$.datepicker.initialized = true;
1788	}
1789
1790	var otherArgs = Array.prototype.slice.call(arguments, 1);
1791	if (typeof options == 'string' && (options == 'isDisabled' || options == 'getDate' || options == 'widget'))
1792		return $.datepicker['_' + options + 'Datepicker'].
1793			apply($.datepicker, [this[0]].concat(otherArgs));
1794	if (options == 'option' && arguments.length == 2 && typeof arguments[1] == 'string')
1795		return $.datepicker['_' + options + 'Datepicker'].
1796			apply($.datepicker, [this[0]].concat(otherArgs));
1797	return this.each(function() {
1798		typeof options == 'string' ?
1799			$.datepicker['_' + options + 'Datepicker'].
1800				apply($.datepicker, [this].concat(otherArgs)) :
1801			$.datepicker._attachDatepicker(this, options);
1802	});
1803};
1804
1805$.datepicker = new Datepicker(); // singleton instance
1806$.datepicker.initialized = false;
1807$.datepicker.uuid = new Date().getTime();
1808$.datepicker.version = "1.8.14";
1809
1810// Workaround for #4055
1811// Add another global to avoid noConflict issues with inline event handlers
1812window['DP_jQuery_' + dpuuid] = $;
1813
1814$('.date-pick').datepicker({autoFocusNextInput: true});
1815})(jQuery);

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