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source: other-projects/tipple-android/i-greenstone-server-files/greenstone/webapps/greenstone3/interfaces/default/js/jquery-ui-1.8.15/ui/jquery.ui.datepicker.js@ 26899

Last change on this file since 26899 was 26899, checked in by davidb, 11 years ago
Tipple reborn after Chris's Summer of Code 2013
File size: 74.5 KB

Line
1	/*
2	* jQuery UI Datepicker 1.8.15
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: "1.8.15" } });
16
17	var PROP_NAME = 'datepicker';
18	var dpuuid = new Date().getTime();
19	var 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
26	function 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	disabled: false // The initial disabled state
110	};
111	$.extend(this._defaults, this.regional['']);
112	this.dpDiv = bindHover($('<div id="' + this._mainDivId + '" class="ui-datepicker ui-widget ui-widget-content ui-helper-clearfix ui-corner-all"></div>'));
113	}
114
115	$.extend(Datepicker.prototype, {
116	/* Class name added to elements to indicate already configured with a date picker. */
117	markerClassName: 'hasDatepicker',
118
119	//Keep track of the maximum number of rows displayed (see #7043)
120	maxRows: 4,
121
122	/* Debug logging (if enabled). */
123	log: function () {
124	if (this.debug)
125	console.log.apply('', arguments);
126	},
127
128	// TODO rename to "widget" when switching to widget factory
129	_widgetDatepicker: function() {
130	return this.dpDiv;
131	},
132
133	/* Override the default settings for all instances of the date picker.
134	@param settings object - the new settings to use as defaults (anonymous object)
135	@return the manager object */
136	setDefaults: function(settings) {
137	extendRemove(this._defaults, settings \|\| {});
138	return this;
139	},
140
141	/* Attach the date picker to a jQuery selection.
142	@param target element - the target input field or division or span
143	@param settings object - the new settings to use for this date picker instance (anonymous) */
144	_attachDatepicker: function(target, settings) {
145	// check for settings on the control itself - in namespace 'date:'
146	var inlineSettings = null;
147	for (var attrName in this._defaults) {
148	var attrValue = target.getAttribute('date:' + attrName);
149	if (attrValue) {
150	inlineSettings = inlineSettings \|\| {};
151	try {
152	inlineSettings[attrName] = eval(attrValue);
153	} catch (err) {
154	inlineSettings[attrName] = attrValue;
155	}
156	}
157	}
158	var nodeName = target.nodeName.toLowerCase();
159	var inline = (nodeName == 'div' \|\| nodeName == 'span');
160	if (!target.id) {
161	this.uuid += 1;
162	target.id = 'dp' + this.uuid;
163	}
164	var inst = this._newInst($(target), inline);
165	inst.settings = $.extend({}, settings \|\| {}, inlineSettings \|\| {});
166	if (nodeName == 'input') {
167	this._connectDatepicker(target, inst);
168	} else if (inline) {
169	this._inlineDatepicker(target, inst);
170	}
171	},
172
173	/* Create a new instance object. */
174	_newInst: function(target, inline) {
175	var id = target[0].id.replace(/([^A-Za-z0-9_-])/g, '\\\\$1'); // escape jQuery meta chars
176	return {id: id, input: target, // associated target
177	selectedDay: 0, selectedMonth: 0, selectedYear: 0, // current selection
178	drawMonth: 0, drawYear: 0, // month being drawn
179	inline: inline, // is datepicker inline or not
180	dpDiv: (!inline ? this.dpDiv : // presentation div
181	bindHover($('<div class="' + this._inlineClass + ' ui-datepicker ui-widget ui-widget-content ui-helper-clearfix ui-corner-all"></div>')))};
182	},
183
184	/* Attach the date picker to an input field. */
185	_connectDatepicker: function(target, inst) {
186	var input = $(target);
187	inst.append = $([]);
188	inst.trigger = $([]);
189	if (input.hasClass(this.markerClassName))
190	return;
191	this._attachments(input, inst);
192	input.addClass(this.markerClassName).keydown(this._doKeyDown).
193	keypress(this._doKeyPress).keyup(this._doKeyUp).
194	bind("setData.datepicker", function(event, key, value) {
195	inst.settings[key] = value;
196	}).bind("getData.datepicker", function(event, key) {
197	return this._get(inst, key);
198	});
199	this._autoSize(inst);
200	$.data(target, PROP_NAME, inst);
201	//If disabled option is true, disable the datepicker once it has been attached to the input (see ticket #5665)
202	if( inst.settings.disabled ) {
203	this._disableDatepicker( target );
204	}
205	},
206
207	/* Make attachments based on settings. */
208	_attachments: function(input, inst) {
209	var appendText = this._get(inst, 'appendText');
210	var isRTL = this._get(inst, 'isRTL');
211	if (inst.append)
212	inst.append.remove();
213	if (appendText) {
214	inst.append = $('<span class="' + this._appendClass + '">' + appendText + '</span>');
215	input[isRTL ? 'before' : 'after'](inst.append);
216	}
217	input.unbind('focus', this._showDatepicker);
218	if (inst.trigger)
219	inst.trigger.remove();
220	var showOn = this._get(inst, 'showOn');
221	if (showOn == 'focus' \|\| showOn == 'both') // pop-up date picker when in the marked field
222	input.focus(this._showDatepicker);
223	if (showOn == 'button' \|\| showOn == 'both') { // pop-up date picker when button clicked
224	var buttonText = this._get(inst, 'buttonText');
225	var buttonImage = this._get(inst, 'buttonImage');
226	inst.trigger = $(this._get(inst, 'buttonImageOnly') ?
227	$('<img/>').addClass(this._triggerClass).
228	attr({ src: buttonImage, alt: buttonText, title: buttonText }) :
229	$('<button type="button"></button>').addClass(this._triggerClass).
230	html(buttonImage == '' ? buttonText : $('<img/>').attr(
231	{ src:buttonImage, alt:buttonText, title:buttonText })));
232	input[isRTL ? 'before' : 'after'](inst.trigger);
233	inst.trigger.click(function() {
234	if ($.datepicker._datepickerShowing && $.datepicker._lastInput == input[0])
235	$.datepicker._hideDatepicker();
236	else
237	$.datepicker._showDatepicker(input[0]);
238	return false;
239	});
240	}
241	},
242
243	/* Apply the maximum length for the date format. */
244	_autoSize: function(inst) {
245	if (this._get(inst, 'autoSize') && !inst.inline) {
246	var date = new Date(2009, 12 - 1, 20); // Ensure double digits
247	var dateFormat = this._get(inst, 'dateFormat');
248	if (dateFormat.match(/[DM]/)) {
249	var findMax = function(names) {
250	var max = 0;
251	var maxI = 0;
252	for (var i = 0; i < names.length; i++) {
253	if (names[i].length > max) {
254	max = names[i].length;
255	maxI = i;
256	}
257	}
258	return maxI;
259	};
260	date.setMonth(findMax(this._get(inst, (dateFormat.match(/MM/) ?
261	'monthNames' : 'monthNamesShort'))));
262	date.setDate(findMax(this._get(inst, (dateFormat.match(/DD/) ?
263	'dayNames' : 'dayNamesShort'))) + 20 - date.getDay());
264	}
265	inst.input.attr('size', this._formatDate(inst, date).length);
266	}
267	},
268
269	/* Attach an inline date picker to a div. */
270	_inlineDatepicker: function(target, inst) {
271	var divSpan = $(target);
272	if (divSpan.hasClass(this.markerClassName))
273	return;
274	divSpan.addClass(this.markerClassName).append(inst.dpDiv).
275	bind("setData.datepicker", function(event, key, value){
276	inst.settings[key] = value;
277	}).bind("getData.datepicker", function(event, key){
278	return this._get(inst, key);
279	});
280	$.data(target, PROP_NAME, inst);
281	this._setDate(inst, this._getDefaultDate(inst), true);
282	this._updateDatepicker(inst);
283	this._updateAlternate(inst);
284	//If disabled option is true, disable the datepicker before showing it (see ticket #5665)
285	if( inst.settings.disabled ) {
286	this._disableDatepicker( target );
287	}
288	// Set display:block in place of inst.dpDiv.show() which won't work on disconnected elements
289	// http://bugs.jqueryui.com/ticket/7552 - A Datepicker created on a detached div has zero height
290	inst.dpDiv.css( "display", "block" );
291	},
292
293	/* Pop-up the date picker in a "dialog" box.
294	@param input element - ignored
295	@param date string or Date - the initial date to display
296	@param onSelect function - the function to call when a date is selected
297	@param settings object - update the dialog date picker instance's settings (anonymous object)
298	@param pos int[2] - coordinates for the dialog's position within the screen or
299	event - with x/y coordinates or
300	leave empty for default (screen centre)
301	@return the manager object */
302	_dialogDatepicker: function(input, date, onSelect, settings, pos) {
303	var inst = this._dialogInst; // internal instance
304	if (!inst) {
305	this.uuid += 1;
306	var id = 'dp' + this.uuid;
307	this._dialogInput = $('<input type="text" id="' + id +
308	'" style="position: absolute; top: -100px; width: 0px; z-index: -10;"/>');
309	this._dialogInput.keydown(this._doKeyDown);
310	$('body').append(this._dialogInput);
311	inst = this._dialogInst = this._newInst(this._dialogInput, false);
312	inst.settings = {};
313	$.data(this._dialogInput[0], PROP_NAME, inst);
314	}
315	extendRemove(inst.settings, settings \|\| {});
316	date = (date && date.constructor == Date ? this._formatDate(inst, date) : date);
317	this._dialogInput.val(date);
318
319	this._pos = (pos ? (pos.length ? pos : [pos.pageX, pos.pageY]) : null);
320	if (!this._pos) {
321	var browserWidth = document.documentElement.clientWidth;
322	var browserHeight = document.documentElement.clientHeight;
323	var scrollX = document.documentElement.scrollLeft \|\| document.body.scrollLeft;
324	var scrollY = document.documentElement.scrollTop \|\| document.body.scrollTop;
325	this._pos = // should use actual width/height below
326	[(browserWidth / 2) - 100 + scrollX, (browserHeight / 2) - 150 + scrollY];
327	}
328
329	// move input on screen for focus, but hidden behind dialog
330	this._dialogInput.css('left', (this._pos[0] + 20) + 'px').css('top', this._pos[1] + 'px');
331	inst.settings.onSelect = onSelect;
332	this._inDialog = true;
333	this.dpDiv.addClass(this._dialogClass);
334	this._showDatepicker(this._dialogInput[0]);
335	if ($.blockUI)
336	$.blockUI(this.dpDiv);
337	$.data(this._dialogInput[0], PROP_NAME, inst);
338	return this;
339	},
340
341	/* Detach a datepicker from its control.
342	@param target element - the target input field or division or span */
343	_destroyDatepicker: function(target) {
344	var $target = $(target);
345	var inst = $.data(target, PROP_NAME);
346	if (!$target.hasClass(this.markerClassName)) {
347	return;
348	}
349	var nodeName = target.nodeName.toLowerCase();
350	$.removeData(target, PROP_NAME);
351	if (nodeName == 'input') {
352	inst.append.remove();
353	inst.trigger.remove();
354	$target.removeClass(this.markerClassName).
355	unbind('focus', this._showDatepicker).
356	unbind('keydown', this._doKeyDown).
357	unbind('keypress', this._doKeyPress).
358	unbind('keyup', this._doKeyUp);
359	} else if (nodeName == 'div' \|\| nodeName == 'span')
360	$target.removeClass(this.markerClassName).empty();
361	},
362
363	/* Enable the date picker to a jQuery selection.
364	@param target element - the target input field or division or span */
365	_enableDatepicker: function(target) {
366	var $target = $(target);
367	var inst = $.data(target, PROP_NAME);
368	if (!$target.hasClass(this.markerClassName)) {
369	return;
370	}
371	var nodeName = target.nodeName.toLowerCase();
372	if (nodeName == 'input') {
373	target.disabled = false;
374	inst.trigger.filter('button').
375	each(function() { this.disabled = false; }).end().
376	filter('img').css({opacity: '1.0', cursor: ''});
377	}
378	else if (nodeName == 'div' \|\| nodeName == 'span') {
379	var inline = $target.children('.' + this._inlineClass);
380	inline.children().removeClass('ui-state-disabled');
381	inline.find("select.ui-datepicker-month, select.ui-datepicker-year").
382	removeAttr("disabled");
383	}
384	this._disabledInputs = $.map(this._disabledInputs,
385	function(value) { return (value == target ? null : value); }); // delete entry
386	},
387
388	/* Disable the date picker to a jQuery selection.
389	@param target element - the target input field or division or span */
390	_disableDatepicker: function(target) {
391	var $target = $(target);
392	var inst = $.data(target, PROP_NAME);
393	if (!$target.hasClass(this.markerClassName)) {
394	return;
395	}
396	var nodeName = target.nodeName.toLowerCase();
397	if (nodeName == 'input') {
398	target.disabled = true;
399	inst.trigger.filter('button').
400	each(function() { this.disabled = true; }).end().
401	filter('img').css({opacity: '0.5', cursor: 'default'});
402	}
403	else if (nodeName == 'div' \|\| nodeName == 'span') {
404	var inline = $target.children('.' + this._inlineClass);
405	inline.children().addClass('ui-state-disabled');
406	inline.find("select.ui-datepicker-month, select.ui-datepicker-year").
407	attr("disabled", "disabled");
408	}
409	this._disabledInputs = $.map(this._disabledInputs,
410	function(value) { return (value == target ? null : value); }); // delete entry
411	this._disabledInputs[this._disabledInputs.length] = target;
412	},
413
414	/* Is the first field in a jQuery collection disabled as a datepicker?
415	@param target element - the target input field or division or span
416	@return boolean - true if disabled, false if enabled */
417	_isDisabledDatepicker: function(target) {
418	if (!target) {
419	return false;
420	}
421	for (var i = 0; i < this._disabledInputs.length; i++) {
422	if (this._disabledInputs[i] == target)
423	return true;
424	}
425	return false;
426	},
427
428	/* Retrieve the instance data for the target control.
429	@param target element - the target input field or division or span
430	@return object - the associated instance data
431	@throws error if a jQuery problem getting data */
432	_getInst: function(target) {
433	try {
434	return $.data(target, PROP_NAME);
435	}
436	catch (err) {
437	throw 'Missing instance data for this datepicker';
438	}
439	},
440
441	/* Update or retrieve the settings for a date picker attached to an input field or division.
442	@param target element - the target input field or division or span
443	@param name object - the new settings to update or
444	string - the name of the setting to change or retrieve,
445	when retrieving also 'all' for all instance settings or
446	'defaults' for all global defaults
447	@param value any - the new value for the setting
448	(omit if above is an object or to retrieve a value) */
449	_optionDatepicker: function(target, name, value) {
450	var inst = this._getInst(target);
451	if (arguments.length == 2 && typeof name == 'string') {
452	return (name == 'defaults' ? $.extend({}, $.datepicker._defaults) :
453	(inst ? (name == 'all' ? $.extend({}, inst.settings) :
454	this._get(inst, name)) : null));
455	}
456	var settings = name \|\| {};
457	if (typeof name == 'string') {
458	settings = {};
459	settings[name] = value;
460	}
461	if (inst) {
462	if (this._curInst == inst) {
463	this._hideDatepicker();
464	}
465	var date = this._getDateDatepicker(target, true);
466	var minDate = this._getMinMaxDate(inst, 'min');
467	var maxDate = this._getMinMaxDate(inst, 'max');
468	extendRemove(inst.settings, settings);
469	// reformat the old minDate/maxDate values if dateFormat changes and a new minDate/maxDate isn't provided
470	if (minDate !== null && settings['dateFormat'] !== undefined && settings['minDate'] === undefined)
471	inst.settings.minDate = this._formatDate(inst, minDate);
472	if (maxDate !== null && settings['dateFormat'] !== undefined && settings['maxDate'] === undefined)
473	inst.settings.maxDate = this._formatDate(inst, maxDate);
474	this._attachments($(target), inst);
475	this._autoSize(inst);
476	this._setDate(inst, date);
477	this._updateAlternate(inst);
478	this._updateDatepicker(inst);
479	}
480	},
481
482	// change method deprecated
483	_changeDatepicker: function(target, name, value) {
484	this._optionDatepicker(target, name, value);
485	},
486
487	/* Redraw the date picker attached to an input field or division.
488	@param target element - the target input field or division or span */
489	_refreshDatepicker: function(target) {
490	var inst = this._getInst(target);
491	if (inst) {
492	this._updateDatepicker(inst);
493	}
494	},
495
496	/* Set the dates for a jQuery selection.
497	@param target element - the target input field or division or span
498	@param date Date - the new date */
499	_setDateDatepicker: function(target, date) {
500	var inst = this._getInst(target);
501	if (inst) {
502	this._setDate(inst, date);
503	this._updateDatepicker(inst);
504	this._updateAlternate(inst);
505	}
506	},
507
508	/* Get the date(s) for the first entry in a jQuery selection.
509	@param target element - the target input field or division or span
510	@param noDefault boolean - true if no default date is to be used
511	@return Date - the current date */
512	_getDateDatepicker: function(target, noDefault) {
513	var inst = this._getInst(target);
514	if (inst && !inst.inline)
515	this._setDateFromField(inst, noDefault);
516	return (inst ? this._getDate(inst) : null);
517	},
518
519	/* Handle keystrokes. */
520	_doKeyDown: function(event) {
521	var inst = $.datepicker._getInst(event.target);
522	var handled = true;
523	var isRTL = inst.dpDiv.is('.ui-datepicker-rtl');
524	inst._keyEvent = true;
525	if ($.datepicker._datepickerShowing)
526	switch (event.keyCode) {
527	case 9: $.datepicker._hideDatepicker();
528	handled = false;
529	break; // hide on tab out
530	case 13: var sel = $('td.' + $.datepicker._dayOverClass + ':not(.' +
531	$.datepicker._currentClass + ')', inst.dpDiv);
532	if (sel[0])
533	$.datepicker._selectDay(event.target, inst.selectedMonth, inst.selectedYear, sel[0]);
534	var onSelect = $.datepicker._get(inst, 'onSelect');
535	if (onSelect) {
536	var dateStr = $.datepicker._formatDate(inst);
537
538	// trigger custom callback
539	onSelect.apply((inst.input ? inst.input[0] : null), [dateStr, inst]);
540	}
541	else
542	$.datepicker._hideDatepicker();
543	return false; // don't submit the form
544	break; // select the value on enter
545	case 27: $.datepicker._hideDatepicker();
546	break; // hide on escape
547	case 33: $.datepicker._adjustDate(event.target, (event.ctrlKey ?
548	-$.datepicker._get(inst, 'stepBigMonths') :
549	-$.datepicker._get(inst, 'stepMonths')), 'M');
550	break; // previous month/year on page up/+ ctrl
551	case 34: $.datepicker._adjustDate(event.target, (event.ctrlKey ?
552	+$.datepicker._get(inst, 'stepBigMonths') :
553	+$.datepicker._get(inst, 'stepMonths')), 'M');
554	break; // next month/year on page down/+ ctrl
555	case 35: if (event.ctrlKey \|\| event.metaKey) $.datepicker._clearDate(event.target);
556	handled = event.ctrlKey \|\| event.metaKey;
557	break; // clear on ctrl or command +end
558	case 36: if (event.ctrlKey \|\| event.metaKey) $.datepicker._gotoToday(event.target);
559	handled = event.ctrlKey \|\| event.metaKey;
560	break; // current on ctrl or command +home
561	case 37: if (event.ctrlKey \|\| event.metaKey) $.datepicker._adjustDate(event.target, (isRTL ? +1 : -1), 'D');
562	handled = event.ctrlKey \|\| event.metaKey;
563	// -1 day on ctrl or command +left
564	if (event.originalEvent.altKey) $.datepicker._adjustDate(event.target, (event.ctrlKey ?
565	-$.datepicker._get(inst, 'stepBigMonths') :
566	-$.datepicker._get(inst, 'stepMonths')), 'M');
567	// next month/year on alt +left on Mac
568	break;
569	case 38: if (event.ctrlKey \|\| event.metaKey) $.datepicker._adjustDate(event.target, -7, 'D');
570	handled = event.ctrlKey \|\| event.metaKey;
571	break; // -1 week on ctrl or command +up
572	case 39: if (event.ctrlKey \|\| event.metaKey) $.datepicker._adjustDate(event.target, (isRTL ? -1 : +1), 'D');
573	handled = event.ctrlKey \|\| event.metaKey;
574	// +1 day on ctrl or command +right
575	if (event.originalEvent.altKey) $.datepicker._adjustDate(event.target, (event.ctrlKey ?
576	+$.datepicker._get(inst, 'stepBigMonths') :
577	+$.datepicker._get(inst, 'stepMonths')), 'M');
578	// next month/year on alt +right
579	break;
580	case 40: if (event.ctrlKey \|\| event.metaKey) $.datepicker._adjustDate(event.target, +7, 'D');
581	handled = event.ctrlKey \|\| event.metaKey;
582	break; // +1 week on ctrl or command +down
583	default: handled = false;
584	}
585	else if (event.keyCode == 36 && event.ctrlKey) // display the date picker on ctrl+home
586	$.datepicker._showDatepicker(this);
587	else {
588	handled = false;
589	}
590	if (handled) {
591	event.preventDefault();
592	event.stopPropagation();
593	}
594	},
595
596	/* Filter entered characters - based on date format. */
597	_doKeyPress: function(event) {
598	var inst = $.datepicker._getInst(event.target);
599	if ($.datepicker._get(inst, 'constrainInput')) {
600	var chars = $.datepicker._possibleChars($.datepicker._get(inst, 'dateFormat'));
601	var chr = String.fromCharCode(event.charCode == undefined ? event.keyCode : event.charCode);
602	return event.ctrlKey \|\| event.metaKey \|\| (chr < ' ' \|\| !chars \|\| chars.indexOf(chr) > -1);
603	}
604	},
605
606	/* Synchronise manual entry and field/alternate field. */
607	_doKeyUp: function(event) {
608	var inst = $.datepicker._getInst(event.target);
609	if (inst.input.val() != inst.lastVal) {
610	try {
611	var date = $.datepicker.parseDate($.datepicker._get(inst, 'dateFormat'),
612	(inst.input ? inst.input.val() : null),
613	$.datepicker._getFormatConfig(inst));
614	if (date) { // only if valid
615	$.datepicker._setDateFromField(inst);
616	$.datepicker._updateAlternate(inst);
617	$.datepicker._updateDatepicker(inst);
618	}
619	}
620	catch (event) {
621	$.datepicker.log(event);
622	}
623	}
624	return true;
625	},
626
627	/* Pop-up the date picker for a given input field.
628	@param input element - the input field attached to the date picker or
629	event - if triggered by focus */
630	_showDatepicker: function(input) {
631	input = input.target \|\| input;
632	if (input.nodeName.toLowerCase() != 'input') // find from button/image trigger
633	input = $('input', input.parentNode)[0];
634	if ($.datepicker._isDisabledDatepicker(input) \|\| $.datepicker._lastInput == input) // already here
635	return;
636	var inst = $.datepicker._getInst(input);
637	if ($.datepicker._curInst && $.datepicker._curInst != inst) {
638	if ( $.datepicker._datepickerShowing ) {
639	$.datepicker._triggerOnClose($.datepicker._curInst);
640	}
641	$.datepicker._curInst.dpDiv.stop(true, true);
642	}
643	var beforeShow = $.datepicker._get(inst, 'beforeShow');
644	extendRemove(inst.settings, (beforeShow ? beforeShow.apply(input, [input, inst]) : {}));
645	inst.lastVal = null;
646	$.datepicker._lastInput = input;
647	$.datepicker._setDateFromField(inst);
648	if ($.datepicker._inDialog) // hide cursor
649	input.value = '';
650	if (!$.datepicker._pos) { // position below input
651	$.datepicker._pos = $.datepicker._findPos(input);
652	$.datepicker._pos[1] += input.offsetHeight; // add the height
653	}
654	var isFixed = false;
655	$(input).parents().each(function() {
656	isFixed \|= $(this).css('position') == 'fixed';
657	return !isFixed;
658	});
659	if (isFixed && $.browser.opera) { // correction for Opera when fixed and scrolled
660	$.datepicker._pos[0] -= document.documentElement.scrollLeft;
661	$.datepicker._pos[1] -= document.documentElement.scrollTop;
662	}
663	var offset = {left: $.datepicker._pos[0], top: $.datepicker._pos[1]};
664	$.datepicker._pos = null;
665	//to avoid flashes on Firefox
666	inst.dpDiv.empty();
667	// determine sizing offscreen
668	inst.dpDiv.css({position: 'absolute', display: 'block', top: '-1000px'});
669	$.datepicker._updateDatepicker(inst);
670	// fix width for dynamic number of date pickers
671	// and adjust position before showing
672	offset = $.datepicker._checkOffset(inst, offset, isFixed);
673	inst.dpDiv.css({position: ($.datepicker._inDialog && $.blockUI ?
674	'static' : (isFixed ? 'fixed' : 'absolute')), display: 'none',
675	left: offset.left + 'px', top: offset.top + 'px'});
676	if (!inst.inline) {
677	var showAnim = $.datepicker._get(inst, 'showAnim');
678	var duration = $.datepicker._get(inst, 'duration');
679	var postProcess = function() {
680	var cover = inst.dpDiv.find('iframe.ui-datepicker-cover'); // IE6- only
681	if( !! cover.length ){
682	var borders = $.datepicker._getBorders(inst.dpDiv);
683	cover.css({left: -borders[0], top: -borders[1],
684	width: inst.dpDiv.outerWidth(), height: inst.dpDiv.outerHeight()});
685	}
686	};
687	inst.dpDiv.zIndex($(input).zIndex()+1);
688	$.datepicker._datepickerShowing = true;
689	if ($.effects && $.effects[showAnim])
690	inst.dpDiv.show(showAnim, $.datepicker._get(inst, 'showOptions'), duration, postProcess);
691	else
692	inst.dpDiv[showAnim \|\| 'show']((showAnim ? duration : null), postProcess);
693	if (!showAnim \|\| !duration)
694	postProcess();
695	if (inst.input.is(':visible') && !inst.input.is(':disabled'))
696	inst.input.focus();
697	$.datepicker._curInst = inst;
698	}
699	},
700
701	/* Generate the date picker content. */
702	_updateDatepicker: function(inst) {
703	var self = this;
704	self.maxRows = 4; //Reset the max number of rows being displayed (see #7043)
705	var borders = $.datepicker._getBorders(inst.dpDiv);
706	instActive = inst; // for delegate hover events
707	inst.dpDiv.empty().append(this._generateHTML(inst));
708	var cover = inst.dpDiv.find('iframe.ui-datepicker-cover'); // IE6- only
709	if( !!cover.length ){ //avoid call to outerXXXX() when not in IE6
710	cover.css({left: -borders[0], top: -borders[1], width: inst.dpDiv.outerWidth(), height: inst.dpDiv.outerHeight()})
711	}
712	inst.dpDiv.find('.' + this._dayOverClass + ' a').mouseover();
713	var numMonths = this._getNumberOfMonths(inst);
714	var cols = numMonths[1];
715	var width = 17;
716	inst.dpDiv.removeClass('ui-datepicker-multi-2 ui-datepicker-multi-3 ui-datepicker-multi-4').width('');
717	if (cols > 1)
718	inst.dpDiv.addClass('ui-datepicker-multi-' + cols).css('width', (width * cols) + 'em');
719	inst.dpDiv[(numMonths[0] != 1 \|\| numMonths[1] != 1 ? 'add' : 'remove') +
720	'Class']('ui-datepicker-multi');
721	inst.dpDiv[(this._get(inst, 'isRTL') ? 'add' : 'remove') +
722	'Class']('ui-datepicker-rtl');
723	if (inst == $.datepicker._curInst && $.datepicker._datepickerShowing && inst.input &&
724	// #6694 - don't focus the input if it's already focused
725	// this breaks the change event in IE
726	inst.input.is(':visible') && !inst.input.is(':disabled') && inst.input[0] != document.activeElement)
727	inst.input.focus();
728	// deffered render of the years select (to avoid flashes on Firefox)
729	if( inst.yearshtml ){
730	var origyearshtml = inst.yearshtml;
731	setTimeout(function(){
732	//assure that inst.yearshtml didn't change.
733	if( origyearshtml === inst.yearshtml && inst.yearshtml ){
734	inst.dpDiv.find('select.ui-datepicker-year:first').replaceWith(inst.yearshtml);
735	}
736	origyearshtml = inst.yearshtml = null;
737	}, 0);
738	}
739	},
740
741	/* Retrieve the size of left and top borders for an element.
742	@param elem (jQuery object) the element of interest
743	@return (number[2]) the left and top borders */
744	_getBorders: function(elem) {
745	var convert = function(value) {
746	return {thin: 1, medium: 2, thick: 3}[value] \|\| value;
747	};
748	return [parseFloat(convert(elem.css('border-left-width'))),
749	parseFloat(convert(elem.css('border-top-width')))];
750	},
751
752	/* Check positioning to remain on screen. */
753	_checkOffset: function(inst, offset, isFixed) {
754	var dpWidth = inst.dpDiv.outerWidth();
755	var dpHeight = inst.dpDiv.outerHeight();
756	var inputWidth = inst.input ? inst.input.outerWidth() : 0;
757	var inputHeight = inst.input ? inst.input.outerHeight() : 0;
758	var viewWidth = document.documentElement.clientWidth + $(document).scrollLeft();
759	var viewHeight = document.documentElement.clientHeight + $(document).scrollTop();
760
761	offset.left -= (this._get(inst, 'isRTL') ? (dpWidth - inputWidth) : 0);
762	offset.left -= (isFixed && offset.left == inst.input.offset().left) ? $(document).scrollLeft() : 0;
763	offset.top -= (isFixed && offset.top == (inst.input.offset().top + inputHeight)) ? $(document).scrollTop() : 0;
764
765	// now check if datepicker is showing outside window viewport - move to a better place if so.
766	offset.left -= Math.min(offset.left, (offset.left + dpWidth > viewWidth && viewWidth > dpWidth) ?
767	Math.abs(offset.left + dpWidth - viewWidth) : 0);
768	offset.top -= Math.min(offset.top, (offset.top + dpHeight > viewHeight && viewHeight > dpHeight) ?
769	Math.abs(dpHeight + inputHeight) : 0);
770
771	return offset;
772	},
773
774	/* Find an object's position on the screen. */
775	_findPos: function(obj) {
776	var inst = this._getInst(obj);
777	var isRTL = this._get(inst, 'isRTL');
778	while (obj && (obj.type == 'hidden' \|\| obj.nodeType != 1 \|\| $.expr.filters.hidden(obj))) {
779	obj = obj[isRTL ? 'previousSibling' : 'nextSibling'];
780	}
781	var position = $(obj).offset();
782	return [position.left, position.top];
783	},
784
785	/* Trigger custom callback of onClose. */
786	_triggerOnClose: function(inst) {
787	var onClose = this._get(inst, 'onClose');
788	if (onClose)
789	onClose.apply((inst.input ? inst.input[0] : null),
790	[(inst.input ? inst.input.val() : ''), inst]);
791	},
792
793	/* Hide the date picker from view.
794	@param input element - the input field attached to the date picker */
795	_hideDatepicker: function(input) {
796	var inst = this._curInst;
797	if (!inst \|\| (input && inst != $.data(input, PROP_NAME)))
798	return;
799	if (this._datepickerShowing) {
800	var showAnim = this._get(inst, 'showAnim');
801	var duration = this._get(inst, 'duration');
802	var postProcess = function() {
803	$.datepicker._tidyDialog(inst);
804	this._curInst = null;
805	};
806	if ($.effects && $.effects[showAnim])
807	inst.dpDiv.hide(showAnim, $.datepicker._get(inst, 'showOptions'), duration, postProcess);
808	else
809	inst.dpDiv[(showAnim == 'slideDown' ? 'slideUp' :
810	(showAnim == 'fadeIn' ? 'fadeOut' : 'hide'))]((showAnim ? duration : null), postProcess);
811	if (!showAnim)
812	postProcess();
813	$.datepicker._triggerOnClose(inst);
814	this._datepickerShowing = false;
815	this._lastInput = null;
816	if (this._inDialog) {
817	this._dialogInput.css({ position: 'absolute', left: '0', top: '-100px' });
818	if ($.blockUI) {
819	$.unblockUI();
820	$('body').append(this.dpDiv);
821	}
822	}
823	this._inDialog = false;
824	}
825	},
826
827	/* Tidy up after a dialog display. */
828	_tidyDialog: function(inst) {
829	inst.dpDiv.removeClass(this._dialogClass).unbind('.ui-datepicker-calendar');
830	},
831
832	/* Close date picker if clicked elsewhere. */
833	_checkExternalClick: function(event) {
834	if (!$.datepicker._curInst)
835	return;
836	var $target = $(event.target);
837	if ($target[0].id != $.datepicker._mainDivId &&
838	$target.parents('#' + $.datepicker._mainDivId).length == 0 &&
839	!$target.hasClass($.datepicker.markerClassName) &&
840	!$target.hasClass($.datepicker._triggerClass) &&
841	$.datepicker._datepickerShowing && !($.datepicker._inDialog && $.blockUI))
842	$.datepicker._hideDatepicker();
843	},
844
845	/* Adjust one of the date sub-fields. */
846	_adjustDate: function(id, offset, period) {
847	var target = $(id);
848	var inst = this._getInst(target[0]);
849	if (this._isDisabledDatepicker(target[0])) {
850	return;
851	}
852	this._adjustInstDate(inst, offset +
853	(period == 'M' ? this._get(inst, 'showCurrentAtPos') : 0), // undo positioning
854	period);
855	this._updateDatepicker(inst);
856	},
857
858	/* Action for current link. */
859	_gotoToday: function(id) {
860	var target = $(id);
861	var inst = this._getInst(target[0]);
862	if (this._get(inst, 'gotoCurrent') && inst.currentDay) {
863	inst.selectedDay = inst.currentDay;
864	inst.drawMonth = inst.selectedMonth = inst.currentMonth;
865	inst.drawYear = inst.selectedYear = inst.currentYear;
866	}
867	else {
868	var date = new Date();
869	inst.selectedDay = date.getDate();
870	inst.drawMonth = inst.selectedMonth = date.getMonth();
871	inst.drawYear = inst.selectedYear = date.getFullYear();
872	}
873	this._notifyChange(inst);
874	this._adjustDate(target);
875	},
876
877	/* Action for selecting a new month/year. */
878	_selectMonthYear: function(id, select, period) {
879	var target = $(id);
880	var inst = this._getInst(target[0]);
881	inst['selected' + (period == 'M' ? 'Month' : 'Year')] =
882	inst['draw' + (period == 'M' ? 'Month' : 'Year')] =
883	parseInt(select.options[select.selectedIndex].value,10);
884	this._notifyChange(inst);
885	this._adjustDate(target);
886	},
887
888	/* Action for selecting a day. */
889	_selectDay: function(id, month, year, td) {
890	var target = $(id);
891	if ($(td).hasClass(this._unselectableClass) \|\| this._isDisabledDatepicker(target[0])) {
892	return;
893	}
894	var inst = this._getInst(target[0]);
895	inst.selectedDay = inst.currentDay = $('a', td).html();
896	inst.selectedMonth = inst.currentMonth = month;
897	inst.selectedYear = inst.currentYear = year;
898	this._selectDate(id, this._formatDate(inst,
899	inst.currentDay, inst.currentMonth, inst.currentYear));
900	},
901
902	/* Erase the input field and hide the date picker. */
903	_clearDate: function(id) {
904	var target = $(id);
905	var inst = this._getInst(target[0]);
906	this._selectDate(target, '');
907	},
908
909	/* Update the input field with the selected date. */
910	_selectDate: function(id, dateStr) {
911	var target = $(id);
912	var inst = this._getInst(target[0]);
913	dateStr = (dateStr != null ? dateStr : this._formatDate(inst));
914	if (inst.input)
915	inst.input.val(dateStr);
916	this._updateAlternate(inst);
917	var onSelect = this._get(inst, 'onSelect');
918	if (onSelect)
919	onSelect.apply((inst.input ? inst.input[0] : null), [dateStr, inst]); // trigger custom callback
920	else if (inst.input)
921	inst.input.trigger('change'); // fire the change event
922	if (inst.inline)
923	this._updateDatepicker(inst);
924	else {
925	this._hideDatepicker();
926	this._lastInput = inst.input[0];
927	inst.input.focus(); // restore focus
928	this._lastInput = null;
929	}
930	},
931
932	/* Update any alternate field to synchronise with the main field. */
933	_updateAlternate: function(inst) {
934	var altField = this._get(inst, 'altField');
935	if (altField) { // update alternate field too
936	var altFormat = this._get(inst, 'altFormat') \|\| this._get(inst, 'dateFormat');
937	var date = this._getDate(inst);
938	var dateStr = this.formatDate(altFormat, date, this._getFormatConfig(inst));
939	$(altField).each(function() { $(this).val(dateStr); });
940	}
941	},
942
943	/* Set as beforeShowDay function to prevent selection of weekends.
944	@param date Date - the date to customise
945	@return [boolean, string] - is this date selectable?, what is its CSS class? */
946	noWeekends: function(date) {
947	var day = date.getDay();
948	return [(day > 0 && day < 6), ''];
949	},
950
951	/* Set as calculateWeek to determine the week of the year based on the ISO 8601 definition.
952	@param date Date - the date to get the week for
953	@return number - the number of the week within the year that contains this date */
954	iso8601Week: function(date) {
955	var checkDate = new Date(date.getTime());
956	// Find Thursday of this week starting on Monday
957	checkDate.setDate(checkDate.getDate() + 4 - (checkDate.getDay() \|\| 7));
958	var time = checkDate.getTime();
959	checkDate.setMonth(0); // Compare with Jan 1
960	checkDate.setDate(1);
961	return Math.floor(Math.round((time - checkDate) / 86400000) / 7) + 1;
962	},
963
964	/* Parse a string value into a date object.
965	See formatDate below for the possible formats.
966
967	@param format string - the expected format of the date
968	@param value string - the date in the above format
969	@param settings Object - attributes include:
970	shortYearCutoff number - the cutoff year for determining the century (optional)
971	dayNamesShort string[7] - abbreviated names of the days from Sunday (optional)
972	dayNames string[7] - names of the days from Sunday (optional)
973	monthNamesShort string[12] - abbreviated names of the months (optional)
974	monthNames string[12] - names of the months (optional)
975	@return Date - the extracted date value or null if value is blank */
976	parseDate: function (format, value, settings) {
977	if (format == null \|\| value == null)
978	throw 'Invalid arguments';
979	value = (typeof value == 'object' ? value.toString() : value + '');
980	if (value == '')
981	return null;
982	var shortYearCutoff = (settings ? settings.shortYearCutoff : null) \|\| this._defaults.shortYearCutoff;
983	shortYearCutoff = (typeof shortYearCutoff != 'string' ? shortYearCutoff :
984	new Date().getFullYear() % 100 + parseInt(shortYearCutoff, 10));
985	var dayNamesShort = (settings ? settings.dayNamesShort : null) \|\| this._defaults.dayNamesShort;
986	var dayNames = (settings ? settings.dayNames : null) \|\| this._defaults.dayNames;
987	var monthNamesShort = (settings ? settings.monthNamesShort : null) \|\| this._defaults.monthNamesShort;
988	var monthNames = (settings ? settings.monthNames : null) \|\| this._defaults.monthNames;
989	var year = -1;
990	var month = -1;
991	var day = -1;
992	var doy = -1;
993	var literal = false;
994	// Check whether a format character is doubled
995	var lookAhead = function(match) {
996	var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) == match);
997	if (matches)
998	iFormat++;
999	return matches;
1000	};
1001	// Extract a number from the string value
1002	var getNumber = function(match) {
1003	var isDoubled = lookAhead(match);
1004	var size = (match == '@' ? 14 : (match == '!' ? 20 :
1005	(match == 'y' && isDoubled ? 4 : (match == 'o' ? 3 : 2))));
1006	var digits = new RegExp('^\\d{1,' + size + '}');
1007	var num = value.substring(iValue).match(digits);
1008	if (!num)
1009	throw 'Missing number at position ' + iValue;
1010	iValue += num[0].length;
1011	return parseInt(num[0], 10);
1012	};
1013	// Extract a name from the string value and convert to an index
1014	var getName = function(match, shortNames, longNames) {
1015	var names = $.map(lookAhead(match) ? longNames : shortNames, function (v, k) {
1016	return [ [k, v] ];
1017	}).sort(function (a, b) {
1018	return -(a[1].length - b[1].length);
1019	});
1020	var index = -1;
1021	$.each(names, function (i, pair) {
1022	var name = pair[1];
1023	if (value.substr(iValue, name.length).toLowerCase() == name.toLowerCase()) {
1024	index = pair[0];
1025	iValue += name.length;
1026	return false;
1027	}
1028	});
1029	if (index != -1)
1030	return index + 1;
1031	else
1032	throw 'Unknown name at position ' + iValue;
1033	};
1034	// Confirm that a literal character matches the string value
1035	var checkLiteral = function() {
1036	if (value.charAt(iValue) != format.charAt(iFormat))
1037	throw 'Unexpected literal at position ' + iValue;
1038	iValue++;
1039	};
1040	var iValue = 0;
1041	for (var iFormat = 0; iFormat < format.length; iFormat++) {
1042	if (literal)
1043	if (format.charAt(iFormat) == "'" && !lookAhead("'"))
1044	literal = false;
1045	else
1046	checkLiteral();
1047	else
1048	switch (format.charAt(iFormat)) {
1049	case 'd':
1050	day = getNumber('d');
1051	break;
1052	case 'D':
1053	getName('D', dayNamesShort, dayNames);
1054	break;
1055	case 'o':
1056	doy = getNumber('o');
1057	break;
1058	case 'm':
1059	month = getNumber('m');
1060	break;
1061	case 'M':
1062	month = getName('M', monthNamesShort, monthNames);
1063	break;
1064	case 'y':
1065	year = getNumber('y');
1066	break;
1067	case '@':
1068	var date = new Date(getNumber('@'));
1069	year = date.getFullYear();
1070	month = date.getMonth() + 1;
1071	day = date.getDate();
1072	break;
1073	case '!':
1074	var date = new Date((getNumber('!') - this._ticksTo1970) / 10000);
1075	year = date.getFullYear();
1076	month = date.getMonth() + 1;
1077	day = date.getDate();
1078	break;
1079	case "'":
1080	if (lookAhead("'"))
1081	checkLiteral();
1082	else
1083	literal = true;
1084	break;
1085	default:
1086	checkLiteral();
1087	}
1088	}
1089	if (iValue < value.length){
1090	throw "Extra/unparsed characters found in date: " + value.substring(iValue);
1091	}
1092	if (year == -1)
1093	year = new Date().getFullYear();
1094	else if (year < 100)
1095	year += new Date().getFullYear() - new Date().getFullYear() % 100 +
1096	(year <= shortYearCutoff ? 0 : -100);
1097	if (doy > -1) {
1098	month = 1;
1099	day = doy;
1100	do {
1101	var dim = this._getDaysInMonth(year, month - 1);
1102	if (day <= dim)
1103	break;
1104	month++;
1105	day -= dim;
1106	} while (true);
1107	}
1108	var date = this._daylightSavingAdjust(new Date(year, month - 1, day));
1109	if (date.getFullYear() != year \|\| date.getMonth() + 1 != month \|\| date.getDate() != day)
1110	throw 'Invalid date'; // E.g. 31/02/00
1111	return date;
1112	},
1113
1114	/* Standard date formats. */
1115	ATOM: 'yy-mm-dd', // RFC 3339 (ISO 8601)
1116	COOKIE: 'D, dd M yy',
1117	ISO_8601: 'yy-mm-dd',
1118	RFC_822: 'D, d M y',
1119	RFC_850: 'DD, dd-M-y',
1120	RFC_1036: 'D, d M y',
1121	RFC_1123: 'D, d M yy',
1122	RFC_2822: 'D, d M yy',
1123	RSS: 'D, d M y', // RFC 822
1124	TICKS: '!',
1125	TIMESTAMP: '@',
1126	W3C: 'yy-mm-dd', // ISO 8601
1127
1128	_ticksTo1970: (((1970 - 1) * 365 + Math.floor(1970 / 4) - Math.floor(1970 / 100) +
1129	Math.floor(1970 / 400)) * 24 * 60 * 60 * 10000000),
1130
1131	/* Format a date object into a string value.
1132	The format can be combinations of the following:
1133	d - day of month (no leading zero)
1134	dd - day of month (two digit)
1135	o - day of year (no leading zeros)
1136	oo - day of year (three digit)
1137	D - day name short
1138	DD - day name long
1139	m - month of year (no leading zero)
1140	mm - month of year (two digit)
1141	M - month name short
1142	MM - month name long
1143	y - year (two digit)
1144	yy - year (four digit)
1145	@ - Unix timestamp (ms since 01/01/1970)
1146	! - Windows ticks (100ns since 01/01/0001)
1147	'...' - literal text
1148	'' - single quote
1149
1150	@param format string - the desired format of the date
1151	@param date Date - the date value to format
1152	@param settings Object - attributes include:
1153	dayNamesShort string[7] - abbreviated names of the days from Sunday (optional)
1154	dayNames string[7] - names of the days from Sunday (optional)
1155	monthNamesShort string[12] - abbreviated names of the months (optional)
1156	monthNames string[12] - names of the months (optional)
1157	@return string - the date in the above format */
1158	formatDate: function (format, date, settings) {
1159	if (!date)
1160	return '';
1161	var dayNamesShort = (settings ? settings.dayNamesShort : null) \|\| this._defaults.dayNamesShort;
1162	var dayNames = (settings ? settings.dayNames : null) \|\| this._defaults.dayNames;
1163	var monthNamesShort = (settings ? settings.monthNamesShort : null) \|\| this._defaults.monthNamesShort;
1164	var monthNames = (settings ? settings.monthNames : null) \|\| this._defaults.monthNames;
1165	// Check whether a format character is doubled
1166	var lookAhead = function(match) {
1167	var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) == match);
1168	if (matches)
1169	iFormat++;
1170	return matches;
1171	};
1172	// Format a number, with leading zero if necessary
1173	var formatNumber = function(match, value, len) {
1174	var num = '' + value;
1175	if (lookAhead(match))
1176	while (num.length < len)
1177	num = '0' + num;
1178	return num;
1179	};
1180	// Format a name, short or long as requested
1181	var formatName = function(match, value, shortNames, longNames) {
1182	return (lookAhead(match) ? longNames[value] : shortNames[value]);
1183	};
1184	var output = '';
1185	var literal = false;
1186	if (date)
1187	for (var iFormat = 0; iFormat < format.length; iFormat++) {
1188	if (literal)
1189	if (format.charAt(iFormat) == "'" && !lookAhead("'"))
1190	literal = false;
1191	else
1192	output += format.charAt(iFormat);
1193	else
1194	switch (format.charAt(iFormat)) {
1195	case 'd':
1196	output += formatNumber('d', date.getDate(), 2);
1197	break;
1198	case 'D':
1199	output += formatName('D', date.getDay(), dayNamesShort, dayNames);
1200	break;
1201	case 'o':
1202	output += formatNumber('o',
1203	Math.round((new Date(date.getFullYear(), date.getMonth(), date.getDate()).getTime() - new Date(date.getFullYear(), 0, 0).getTime()) / 86400000), 3);
1204	break;
1205	case 'm':
1206	output += formatNumber('m', date.getMonth() + 1, 2);
1207	break;
1208	case 'M':
1209	output += formatName('M', date.getMonth(), monthNamesShort, monthNames);
1210	break;
1211	case 'y':
1212	output += (lookAhead('y') ? date.getFullYear() :
1213	(date.getYear() % 100 < 10 ? '0' : '') + date.getYear() % 100);
1214	break;
1215	case '@':
1216	output += date.getTime();
1217	break;
1218	case '!':
1219	output += date.getTime() * 10000 + this._ticksTo1970;
1220	break;
1221	case "'":
1222	if (lookAhead("'"))
1223	output += "'";
1224	else
1225	literal = true;
1226	break;
1227	default:
1228	output += format.charAt(iFormat);
1229	}
1230	}
1231	return output;
1232	},
1233
1234	/* Extract all possible characters from the date format. */
1235	_possibleChars: function (format) {
1236	var chars = '';
1237	var literal = false;
1238	// Check whether a format character is doubled
1239	var lookAhead = function(match) {
1240	var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) == match);
1241	if (matches)
1242	iFormat++;
1243	return matches;
1244	};
1245	for (var iFormat = 0; iFormat < format.length; iFormat++)
1246	if (literal)
1247	if (format.charAt(iFormat) == "'" && !lookAhead("'"))
1248	literal = false;
1249	else
1250	chars += format.charAt(iFormat);
1251	else
1252	switch (format.charAt(iFormat)) {
1253	case 'd': case 'm': case 'y': case '@':
1254	chars += '0123456789';
1255	break;
1256	case 'D': case 'M':
1257	return null; // Accept anything
1258	case "'":
1259	if (lookAhead("'"))
1260	chars += "'";
1261	else
1262	literal = true;
1263	break;
1264	default:
1265	chars += format.charAt(iFormat);
1266	}
1267	return chars;
1268	},
1269
1270	/* Get a setting value, defaulting if necessary. */
1271	_get: function(inst, name) {
1272	return inst.settings[name] !== undefined ?
1273	inst.settings[name] : this._defaults[name];
1274	},
1275
1276	/* Parse existing date and initialise date picker. */
1277	_setDateFromField: function(inst, noDefault) {
1278	if (inst.input.val() == inst.lastVal) {
1279	return;
1280	}
1281	var dateFormat = this._get(inst, 'dateFormat');
1282	var dates = inst.lastVal = inst.input ? inst.input.val() : null;
1283	var date, defaultDate;
1284	date = defaultDate = this._getDefaultDate(inst);
1285	var settings = this._getFormatConfig(inst);
1286	try {
1287	date = this.parseDate(dateFormat, dates, settings) \|\| defaultDate;
1288	} catch (event) {
1289	this.log(event);
1290	dates = (noDefault ? '' : dates);
1291	}
1292	inst.selectedDay = date.getDate();
1293	inst.drawMonth = inst.selectedMonth = date.getMonth();
1294	inst.drawYear = inst.selectedYear = date.getFullYear();
1295	inst.currentDay = (dates ? date.getDate() : 0);
1296	inst.currentMonth = (dates ? date.getMonth() : 0);
1297	inst.currentYear = (dates ? date.getFullYear() : 0);
1298	this._adjustInstDate(inst);
1299	},
1300
1301	/* Retrieve the default date shown on opening. */
1302	_getDefaultDate: function(inst) {
1303	return this._restrictMinMax(inst,
1304	this._determineDate(inst, this._get(inst, 'defaultDate'), new Date()));
1305	},
1306
1307	/* A date may be specified as an exact value or a relative one. */
1308	_determineDate: function(inst, date, defaultDate) {
1309	var offsetNumeric = function(offset) {
1310	var date = new Date();
1311	date.setDate(date.getDate() + offset);
1312	return date;
1313	};
1314	var offsetString = function(offset) {
1315	try {
1316	return $.datepicker.parseDate($.datepicker._get(inst, 'dateFormat'),
1317	offset, $.datepicker._getFormatConfig(inst));
1318	}
1319	catch (e) {
1320	// Ignore
1321	}
1322	var date = (offset.toLowerCase().match(/^c/) ?
1323	$.datepicker._getDate(inst) : null) \|\| new Date();
1324	var year = date.getFullYear();
1325	var month = date.getMonth();
1326	var day = date.getDate();
1327	var pattern = /([+-]?[0-9]+)\s*(d\|D\|w\|W\|m\|M\|y\|Y)?/g;
1328	var matches = pattern.exec(offset);
1329	while (matches) {
1330	switch (matches[2] \|\| 'd') {
1331	case 'd' : case 'D' :
1332	day += parseInt(matches[1],10); break;
1333	case 'w' : case 'W' :
1334	day += parseInt(matches[1],10) * 7; break;
1335	case 'm' : case 'M' :
1336	month += parseInt(matches[1],10);
1337	day = Math.min(day, $.datepicker._getDaysInMonth(year, month));
1338	break;
1339	case 'y': case 'Y' :
1340	year += parseInt(matches[1],10);
1341	day = Math.min(day, $.datepicker._getDaysInMonth(year, month));
1342	break;
1343	}
1344	matches = pattern.exec(offset);
1345	}
1346	return new Date(year, month, day);
1347	};
1348	var newDate = (date == null \|\| date === '' ? defaultDate : (typeof date == 'string' ? offsetString(date) :
1349	(typeof date == 'number' ? (isNaN(date) ? defaultDate : offsetNumeric(date)) : new Date(date.getTime()))));
1350	newDate = (newDate && newDate.toString() == 'Invalid Date' ? defaultDate : newDate);
1351	if (newDate) {
1352	newDate.setHours(0);
1353	newDate.setMinutes(0);
1354	newDate.setSeconds(0);
1355	newDate.setMilliseconds(0);
1356	}
1357	return this._daylightSavingAdjust(newDate);
1358	},
1359
1360	/* Handle switch to/from daylight saving.
1361	Hours may be non-zero on daylight saving cut-over:
1362	> 12 when midnight changeover, but then cannot generate
1363	midnight datetime, so jump to 1AM, otherwise reset.
1364	@param date (Date) the date to check
1365	@return (Date) the corrected date */
1366	_daylightSavingAdjust: function(date) {
1367	if (!date) return null;
1368	date.setHours(date.getHours() > 12 ? date.getHours() + 2 : 0);
1369	return date;
1370	},
1371
1372	/* Set the date(s) directly. */
1373	_setDate: function(inst, date, noChange) {
1374	var clear = !date;
1375	var origMonth = inst.selectedMonth;
1376	var origYear = inst.selectedYear;
1377	var newDate = this._restrictMinMax(inst, this._determineDate(inst, date, new Date()));
1378	inst.selectedDay = inst.currentDay = newDate.getDate();
1379	inst.drawMonth = inst.selectedMonth = inst.currentMonth = newDate.getMonth();
1380	inst.drawYear = inst.selectedYear = inst.currentYear = newDate.getFullYear();
1381	if ((origMonth != inst.selectedMonth \|\| origYear != inst.selectedYear) && !noChange)
1382	this._notifyChange(inst);
1383	this._adjustInstDate(inst);
1384	if (inst.input) {
1385	inst.input.val(clear ? '' : this._formatDate(inst));
1386	}
1387
1388	var onSelect = this._get(inst, 'onSelect');
1389	if (onSelect) {
1390	var dateStr = this._formatDate(inst);
1391
1392	// trigger custom callback
1393	onSelect.apply((inst.input ? inst.input[0] : null), [dateStr, inst]);
1394	}
1395	},
1396
1397	/* Retrieve the date(s) directly. */
1398	_getDate: function(inst) {
1399	var startDate = (!inst.currentYear \|\| (inst.input && inst.input.val() == '') ? null :
1400	this._daylightSavingAdjust(new Date(
1401	inst.currentYear, inst.currentMonth, inst.currentDay)));
1402	return startDate;
1403	},
1404
1405	/* Generate the HTML for the current state of the date picker. */
1406	_generateHTML: function(inst) {
1407	var today = new Date();
1408	today = this._daylightSavingAdjust(
1409	new Date(today.getFullYear(), today.getMonth(), today.getDate())); // clear time
1410	var isRTL = this._get(inst, 'isRTL');
1411	var showButtonPanel = this._get(inst, 'showButtonPanel');
1412	var hideIfNoPrevNext = this._get(inst, 'hideIfNoPrevNext');
1413	var navigationAsDateFormat = this._get(inst, 'navigationAsDateFormat');
1414	var numMonths = this._getNumberOfMonths(inst);
1415	var showCurrentAtPos = this._get(inst, 'showCurrentAtPos');
1416	var stepMonths = this._get(inst, 'stepMonths');
1417	var isMultiMonth = (numMonths[0] != 1 \|\| numMonths[1] != 1);
1418	var currentDate = this._daylightSavingAdjust((!inst.currentDay ? new Date(9999, 9, 9) :
1419	new Date(inst.currentYear, inst.currentMonth, inst.currentDay)));
1420	var minDate = this._getMinMaxDate(inst, 'min');
1421	var maxDate = this._getMinMaxDate(inst, 'max');
1422	var drawMonth = inst.drawMonth - showCurrentAtPos;
1423	var drawYear = inst.drawYear;
1424	if (drawMonth < 0) {
1425	drawMonth += 12;
1426	drawYear--;
1427	}
1428	if (maxDate) {
1429	var maxDraw = this._daylightSavingAdjust(new Date(maxDate.getFullYear(),
1430	maxDate.getMonth() - (numMonths[0] * numMonths[1]) + 1, maxDate.getDate()));
1431	maxDraw = (minDate && maxDraw < minDate ? minDate : maxDraw);
1432	while (this._daylightSavingAdjust(new Date(drawYear, drawMonth, 1)) > maxDraw) {
1433	drawMonth--;
1434	if (drawMonth < 0) {
1435	drawMonth = 11;
1436	drawYear--;
1437	}
1438	}
1439	}
1440	inst.drawMonth = drawMonth;
1441	inst.drawYear = drawYear;
1442	var prevText = this._get(inst, 'prevText');
1443	prevText = (!navigationAsDateFormat ? prevText : this.formatDate(prevText,
1444	this._daylightSavingAdjust(new Date(drawYear, drawMonth - stepMonths, 1)),
1445	this._getFormatConfig(inst)));
1446	var prev = (this._canAdjustMonth(inst, -1, drawYear, drawMonth) ?
1447	'<a class="ui-datepicker-prev ui-corner-all" onclick="DP_jQuery_' + dpuuid +
1448	'.datepicker._adjustDate(\'#' + inst.id + '\', -' + stepMonths + ', \'M\');"' +
1449	' title="' + prevText + '"><span class="ui-icon ui-icon-circle-triangle-' + ( isRTL ? 'e' : 'w') + '">' + prevText + '</span></a>' :
1450	(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>'));
1451	var nextText = this._get(inst, 'nextText');
1452	nextText = (!navigationAsDateFormat ? nextText : this.formatDate(nextText,
1453	this._daylightSavingAdjust(new Date(drawYear, drawMonth + stepMonths, 1)),
1454	this._getFormatConfig(inst)));
1455	var next = (this._canAdjustMonth(inst, +1, drawYear, drawMonth) ?
1456	'<a class="ui-datepicker-next ui-corner-all" onclick="DP_jQuery_' + dpuuid +
1457	'.datepicker._adjustDate(\'#' + inst.id + '\', +' + stepMonths + ', \'M\');"' +
1458	' title="' + nextText + '"><span class="ui-icon ui-icon-circle-triangle-' + ( isRTL ? 'w' : 'e') + '">' + nextText + '</span></a>' :
1459	(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>'));
1460	var currentText = this._get(inst, 'currentText');
1461	var gotoDate = (this._get(inst, 'gotoCurrent') && inst.currentDay ? currentDate : today);
1462	currentText = (!navigationAsDateFormat ? currentText :
1463	this.formatDate(currentText, gotoDate, this._getFormatConfig(inst)));
1464	var controls = (!inst.inline ? '<button type="button" class="ui-datepicker-close ui-state-default ui-priority-primary ui-corner-all" onclick="DP_jQuery_' + dpuuid +
1465	'.datepicker._hideDatepicker();">' + this._get(inst, 'closeText') + '</button>' : '');
1466	var buttonPanel = (showButtonPanel) ? '<div class="ui-datepicker-buttonpane ui-widget-content">' + (isRTL ? controls : '') +
1467	(this._isInRange(inst, gotoDate) ? '<button type="button" class="ui-datepicker-current ui-state-default ui-priority-secondary ui-corner-all" onclick="DP_jQuery_' + dpuuid +
1468	'.datepicker._gotoToday(\'#' + inst.id + '\');"' +
1469	'>' + currentText + '</button>' : '') + (isRTL ? '' : controls) + '</div>' : '';
1470	var firstDay = parseInt(this._get(inst, 'firstDay'),10);
1471	firstDay = (isNaN(firstDay) ? 0 : firstDay);
1472	var showWeek = this._get(inst, 'showWeek');
1473	var dayNames = this._get(inst, 'dayNames');
1474	var dayNamesShort = this._get(inst, 'dayNamesShort');
1475	var dayNamesMin = this._get(inst, 'dayNamesMin');
1476	var monthNames = this._get(inst, 'monthNames');
1477	var monthNamesShort = this._get(inst, 'monthNamesShort');
1478	var beforeShowDay = this._get(inst, 'beforeShowDay');
1479	var showOtherMonths = this._get(inst, 'showOtherMonths');
1480	var selectOtherMonths = this._get(inst, 'selectOtherMonths');
1481	var calculateWeek = this._get(inst, 'calculateWeek') \|\| this.iso8601Week;
1482	var defaultDate = this._getDefaultDate(inst);
1483	var html = '';
1484	for (var row = 0; row < numMonths[0]; row++) {
1485	var group = '';
1486	this.maxRows = 4;
1487	for (var col = 0; col < numMonths[1]; col++) {
1488	var selectedDate = this._daylightSavingAdjust(new Date(drawYear, drawMonth, inst.selectedDay));
1489	var cornerClass = ' ui-corner-all';
1490	var calender = '';
1491	if (isMultiMonth) {
1492	calender += '<div class="ui-datepicker-group';
1493	if (numMonths[1] > 1)
1494	switch (col) {
1495	case 0: calender += ' ui-datepicker-group-first';
1496	cornerClass = ' ui-corner-' + (isRTL ? 'right' : 'left'); break;
1497	case numMonths[1]-1: calender += ' ui-datepicker-group-last';
1498	cornerClass = ' ui-corner-' + (isRTL ? 'left' : 'right'); break;
1499	default: calender += ' ui-datepicker-group-middle'; cornerClass = ''; break;
1500	}
1501	calender += '">';
1502	}
1503	calender += '<div class="ui-datepicker-header ui-widget-header ui-helper-clearfix' + cornerClass + '">' +
1504	(/all\|left/.test(cornerClass) && row == 0 ? (isRTL ? next : prev) : '') +
1505	(/all\|right/.test(cornerClass) && row == 0 ? (isRTL ? prev : next) : '') +
1506	this._generateMonthYearHeader(inst, drawMonth, drawYear, minDate, maxDate,
1507	row > 0 \|\| col > 0, monthNames, monthNamesShort) + // draw month headers
1508	'</div><table class="ui-datepicker-calendar"><thead>' +
1509	'<tr>';
1510	var thead = (showWeek ? '<th class="ui-datepicker-week-col">' + this._get(inst, 'weekHeader') + '</th>' : '');
1511	for (var dow = 0; dow < 7; dow++) { // days of the week
1512	var day = (dow + firstDay) % 7;
1513	thead += '<th' + ((dow + firstDay + 6) % 7 >= 5 ? ' class="ui-datepicker-week-end"' : '') + '>' +
1514	'<span title="' + dayNames[day] + '">' + dayNamesMin[day] + '</span></th>';
1515	}
1516	calender += thead + '</tr></thead><tbody>';
1517	var daysInMonth = this._getDaysInMonth(drawYear, drawMonth);
1518	if (drawYear == inst.selectedYear && drawMonth == inst.selectedMonth)
1519	inst.selectedDay = Math.min(inst.selectedDay, daysInMonth);
1520	var leadDays = (this._getFirstDayOfMonth(drawYear, drawMonth) - firstDay + 7) % 7;
1521	var curRows = Math.ceil((leadDays + daysInMonth) / 7); // calculate the number of rows to generate
1522	var numRows = (isMultiMonth ? this.maxRows > curRows ? this.maxRows : curRows : curRows); //If multiple months, use the higher number of rows (see #7043)
1523	this.maxRows = numRows;
1524	var printDate = this._daylightSavingAdjust(new Date(drawYear, drawMonth, 1 - leadDays));
1525	for (var dRow = 0; dRow < numRows; dRow++) { // create date picker rows
1526	calender += '<tr>';
1527	var tbody = (!showWeek ? '' : '<td class="ui-datepicker-week-col">' +
1528	this._get(inst, 'calculateWeek')(printDate) + '</td>');
1529	for (var dow = 0; dow < 7; dow++) { // create date picker days
1530	var daySettings = (beforeShowDay ?
1531	beforeShowDay.apply((inst.input ? inst.input[0] : null), [printDate]) : [true, '']);
1532	var otherMonth = (printDate.getMonth() != drawMonth);
1533	var unselectable = (otherMonth && !selectOtherMonths) \|\| !daySettings[0] \|\|
1534	(minDate && printDate < minDate) \|\| (maxDate && printDate > maxDate);
1535	tbody += '<td class="' +
1536	((dow + firstDay + 6) % 7 >= 5 ? ' ui-datepicker-week-end' : '') + // highlight weekends
1537	(otherMonth ? ' ui-datepicker-other-month' : '') + // highlight days from other months
1538	((printDate.getTime() == selectedDate.getTime() && drawMonth == inst.selectedMonth && inst._keyEvent) \|\| // user pressed key
1539	(defaultDate.getTime() == printDate.getTime() && defaultDate.getTime() == selectedDate.getTime()) ?
1540	// or defaultDate is current printedDate and defaultDate is selectedDate
1541	' ' + this._dayOverClass : '') + // highlight selected day
1542	(unselectable ? ' ' + this._unselectableClass + ' ui-state-disabled': '') + // highlight unselectable days
1543	(otherMonth && !showOtherMonths ? '' : ' ' + daySettings[1] + // highlight custom dates
1544	(printDate.getTime() == currentDate.getTime() ? ' ' + this._currentClass : '') + // highlight selected day
1545	(printDate.getTime() == today.getTime() ? ' ui-datepicker-today' : '')) + '"' + // highlight today (if different)
1546	((!otherMonth \|\| showOtherMonths) && daySettings[2] ? ' title="' + daySettings[2] + '"' : '') + // cell title
1547	(unselectable ? '' : ' onclick="DP_jQuery_' + dpuuid + '.datepicker._selectDay(\'#' +
1548	inst.id + '\',' + printDate.getMonth() + ',' + printDate.getFullYear() + ', this);return false;"') + '>' + // actions
1549	(otherMonth && !showOtherMonths ? ' ' : // display for other months
1550	(unselectable ? '<span class="ui-state-default">' + printDate.getDate() + '</span>' : '<a class="ui-state-default' +
1551	(printDate.getTime() == today.getTime() ? ' ui-state-highlight' : '') +
1552	(printDate.getTime() == currentDate.getTime() ? ' ui-state-active' : '') + // highlight selected day
1553	(otherMonth ? ' ui-priority-secondary' : '') + // distinguish dates from other months
1554	'" href="#">' + printDate.getDate() + '</a>')) + '</td>'; // display selectable date
1555	printDate.setDate(printDate.getDate() + 1);
1556	printDate = this._daylightSavingAdjust(printDate);
1557	}
1558	calender += tbody + '</tr>';
1559	}
1560	drawMonth++;
1561	if (drawMonth > 11) {
1562	drawMonth = 0;
1563	drawYear++;
1564	}
1565	calender += '</tbody></table>' + (isMultiMonth ? '</div>' +
1566	((numMonths[0] > 0 && col == numMonths[1]-1) ? '<div class="ui-datepicker-row-break"></div>' : '') : '');
1567	group += calender;
1568	}
1569	html += group;
1570	}
1571	html += buttonPanel + ($.browser.msie && parseInt($.browser.version,10) < 7 && !inst.inline ?
1572	'<iframe src="javascript:false;" class="ui-datepicker-cover" frameborder="0"></iframe>' : '');
1573	inst._keyEvent = false;
1574	return html;
1575	},
1576
1577	/* Generate the month and year header. */
1578	_generateMonthYearHeader: function(inst, drawMonth, drawYear, minDate, maxDate,
1579	secondary, monthNames, monthNamesShort) {
1580	var changeMonth = this._get(inst, 'changeMonth');
1581	var changeYear = this._get(inst, 'changeYear');
1582	var showMonthAfterYear = this._get(inst, 'showMonthAfterYear');
1583	var html = '<div class="ui-datepicker-title">';
1584	var monthHtml = '';
1585	// month selection
1586	if (secondary \|\| !changeMonth)
1587	monthHtml += '<span class="ui-datepicker-month">' + monthNames[drawMonth] + '</span>';
1588	else {
1589	var inMinYear = (minDate && minDate.getFullYear() == drawYear);
1590	var inMaxYear = (maxDate && maxDate.getFullYear() == drawYear);
1591	monthHtml += '<select class="ui-datepicker-month" ' +
1592	'onchange="DP_jQuery_' + dpuuid + '.datepicker._selectMonthYear(\'#' + inst.id + '\', this, \'M\');" ' +
1593	'>';
1594	for (var month = 0; month < 12; month++) {
1595	if ((!inMinYear \|\| month >= minDate.getMonth()) &&
1596	(!inMaxYear \|\| month <= maxDate.getMonth()))
1597	monthHtml += '<option value="' + month + '"' +
1598	(month == drawMonth ? ' selected="selected"' : '') +
1599	'>' + monthNamesShort[month] + '</option>';
1600	}
1601	monthHtml += '</select>';
1602	}
1603	if (!showMonthAfterYear)
1604	html += monthHtml + (secondary \|\| !(changeMonth && changeYear) ? ' ' : '');
1605	// year selection
1606	if ( !inst.yearshtml ) {
1607	inst.yearshtml = '';
1608	if (secondary \|\| !changeYear)
1609	html += '<span class="ui-datepicker-year">' + drawYear + '</span>';
1610	else {
1611	// determine range of years to display
1612	var years = this._get(inst, 'yearRange').split(':');
1613	var thisYear = new Date().getFullYear();
1614	var determineYear = function(value) {
1615	var year = (value.match(/c[+-].*/) ? drawYear + parseInt(value.substring(1), 10) :
1616	(value.match(/[+-].*/) ? thisYear + parseInt(value, 10) :
1617	parseInt(value, 10)));
1618	return (isNaN(year) ? thisYear : year);
1619	};
1620	var year = determineYear(years[0]);
1621	var endYear = Math.max(year, determineYear(years[1] \|\| ''));
1622	year = (minDate ? Math.max(year, minDate.getFullYear()) : year);
1623	endYear = (maxDate ? Math.min(endYear, maxDate.getFullYear()) : endYear);
1624	inst.yearshtml += '<select class="ui-datepicker-year" ' +
1625	'onchange="DP_jQuery_' + dpuuid + '.datepicker._selectMonthYear(\'#' + inst.id + '\', this, \'Y\');" ' +
1626	'>';
1627	for (; year <= endYear; year++) {
1628	inst.yearshtml += '<option value="' + year + '"' +
1629	(year == drawYear ? ' selected="selected"' : '') +
1630	'>' + year + '</option>';
1631	}
1632	inst.yearshtml += '</select>';
1633
1634	html += inst.yearshtml;
1635	inst.yearshtml = null;
1636	}
1637	}
1638	html += this._get(inst, 'yearSuffix');
1639	if (showMonthAfterYear)
1640	html += (secondary \|\| !(changeMonth && changeYear) ? ' ' : '') + monthHtml;
1641	html += '</div>'; // Close datepicker_header
1642	return html;
1643	},
1644
1645	/* Adjust one of the date sub-fields. */
1646	_adjustInstDate: function(inst, offset, period) {
1647	var year = inst.drawYear + (period == 'Y' ? offset : 0);
1648	var month = inst.drawMonth + (period == 'M' ? offset : 0);
1649	var day = Math.min(inst.selectedDay, this._getDaysInMonth(year, month)) +
1650	(period == 'D' ? offset : 0);
1651	var date = this._restrictMinMax(inst,
1652	this._daylightSavingAdjust(new Date(year, month, day)));
1653	inst.selectedDay = date.getDate();
1654	inst.drawMonth = inst.selectedMonth = date.getMonth();
1655	inst.drawYear = inst.selectedYear = date.getFullYear();
1656	if (period == 'M' \|\| period == 'Y')
1657	this._notifyChange(inst);
1658	},
1659
1660	/* Ensure a date is within any min/max bounds. */
1661	_restrictMinMax: function(inst, date) {
1662	var minDate = this._getMinMaxDate(inst, 'min');
1663	var maxDate = this._getMinMaxDate(inst, 'max');
1664	var newDate = (minDate && date < minDate ? minDate : date);
1665	newDate = (maxDate && newDate > maxDate ? maxDate : newDate);
1666	return newDate;
1667	},
1668
1669	/* Notify change of month/year. */
1670	_notifyChange: function(inst) {
1671	var onChange = this._get(inst, 'onChangeMonthYear');
1672	if (onChange)
1673	onChange.apply((inst.input ? inst.input[0] : null),
1674	[inst.selectedYear, inst.selectedMonth + 1, inst]);
1675	},
1676
1677	/* Determine the number of months to show. */
1678	_getNumberOfMonths: function(inst) {
1679	var numMonths = this._get(inst, 'numberOfMonths');
1680	return (numMonths == null ? [1, 1] : (typeof numMonths == 'number' ? [1, numMonths] : numMonths));
1681	},
1682
1683	/* Determine the current maximum date - ensure no time components are set. */
1684	_getMinMaxDate: function(inst, minMax) {
1685	return this._determineDate(inst, this._get(inst, minMax + 'Date'), null);
1686	},
1687
1688	/* Find the number of days in a given month. */
1689	_getDaysInMonth: function(year, month) {
1690	return 32 - this._daylightSavingAdjust(new Date(year, month, 32)).getDate();
1691	},
1692
1693	/* Find the day of the week of the first of a month. */
1694	_getFirstDayOfMonth: function(year, month) {
1695	return new Date(year, month, 1).getDay();
1696	},
1697
1698	/* Determines if we should allow a "next/prev" month display change. */
1699	_canAdjustMonth: function(inst, offset, curYear, curMonth) {
1700	var numMonths = this._getNumberOfMonths(inst);
1701	var date = this._daylightSavingAdjust(new Date(curYear,
1702	curMonth + (offset < 0 ? offset : numMonths[0] * numMonths[1]), 1));
1703	if (offset < 0)
1704	date.setDate(this._getDaysInMonth(date.getFullYear(), date.getMonth()));
1705	return this._isInRange(inst, date);
1706	},
1707
1708	/* Is the given date in the accepted range? */
1709	_isInRange: function(inst, date) {
1710	var minDate = this._getMinMaxDate(inst, 'min');
1711	var maxDate = this._getMinMaxDate(inst, 'max');
1712	return ((!minDate \|\| date.getTime() >= minDate.getTime()) &&
1713	(!maxDate \|\| date.getTime() <= maxDate.getTime()));
1714	},
1715
1716	/* Provide the configuration settings for formatting/parsing. */
1717	_getFormatConfig: function(inst) {
1718	var shortYearCutoff = this._get(inst, 'shortYearCutoff');
1719	shortYearCutoff = (typeof shortYearCutoff != 'string' ? shortYearCutoff :
1720	new Date().getFullYear() % 100 + parseInt(shortYearCutoff, 10));
1721	return {shortYearCutoff: shortYearCutoff,
1722	dayNamesShort: this._get(inst, 'dayNamesShort'), dayNames: this._get(inst, 'dayNames'),
1723	monthNamesShort: this._get(inst, 'monthNamesShort'), monthNames: this._get(inst, 'monthNames')};
1724	},
1725
1726	/* Format the given date for display. */
1727	_formatDate: function(inst, day, month, year) {
1728	if (!day) {
1729	inst.currentDay = inst.selectedDay;
1730	inst.currentMonth = inst.selectedMonth;
1731	inst.currentYear = inst.selectedYear;
1732	}
1733	var date = (day ? (typeof day == 'object' ? day :
1734	this._daylightSavingAdjust(new Date(year, month, day))) :
1735	this._daylightSavingAdjust(new Date(inst.currentYear, inst.currentMonth, inst.currentDay)));
1736	return this.formatDate(this._get(inst, 'dateFormat'), date, this._getFormatConfig(inst));
1737	}
1738	});
1739
1740	/*
1741	* Bind hover events for datepicker elements.
1742	* Done via delegate so the binding only occurs once in the lifetime of the parent div.
1743	* Global instActive, set by _updateDatepicker allows the handlers to find their way back to the active picker.
1744	*/
1745	function bindHover(dpDiv) {
1746	var selector = 'button, .ui-datepicker-prev, .ui-datepicker-next, .ui-datepicker-calendar td a';
1747	return dpDiv.bind('mouseout', function(event) {
1748	var elem = $( event.target ).closest( selector );
1749	if ( !elem.length ) {
1750	return;
1751	}
1752	elem.removeClass( "ui-state-hover ui-datepicker-prev-hover ui-datepicker-next-hover" );
1753	})
1754	.bind('mouseover', function(event) {
1755	var elem = $( event.target ).closest( selector );
1756	if ($.datepicker._isDisabledDatepicker( instActive.inline ? dpDiv.parent()[0] : instActive.input[0]) \|\|
1757	!elem.length ) {
1758	return;
1759	}
1760	elem.parents('.ui-datepicker-calendar').find('a').removeClass('ui-state-hover');
1761	elem.addClass('ui-state-hover');
1762	if (elem.hasClass('ui-datepicker-prev')) elem.addClass('ui-datepicker-prev-hover');
1763	if (elem.hasClass('ui-datepicker-next')) elem.addClass('ui-datepicker-next-hover');
1764	});
1765	}
1766
1767	/* jQuery extend now ignores nulls! */
1768	function extendRemove(target, props) {
1769	$.extend(target, props);
1770	for (var name in props)
1771	if (props[name] == null \|\| props[name] == undefined)
1772	target[name] = props[name];
1773	return target;
1774	};
1775
1776	/* Determine whether an object is an array. */
1777	function isArray(a) {
1778	return (a && (($.browser.safari && typeof a == 'object' && a.length) \|\|
1779	(a.constructor && a.constructor.toString().match(/\Array\(\)/))));
1780	};
1781
1782	/* Invoke the datepicker functionality.
1783	@param options string - a command, optionally followed by additional parameters or
1784	Object - settings for attaching new datepicker functionality
1785	@return jQuery object */
1786	$.fn.datepicker = function(options){
1787
1788	/* Verify an empty collection wasn't passed - Fixes #6976 */
1789	if ( !this.length ) {
1790	return this;
1791	}
1792
1793	/* Initialise the date picker. */
1794	if (!$.datepicker.initialized) {
1795	$(document).mousedown($.datepicker._checkExternalClick).
1796	find('body').append($.datepicker.dpDiv);
1797	$.datepicker.initialized = true;
1798	}
1799
1800	var otherArgs = Array.prototype.slice.call(arguments, 1);
1801	if (typeof options == 'string' && (options == 'isDisabled' \|\| options == 'getDate' \|\| options == 'widget'))
1802	return $.datepicker['_' + options + 'Datepicker'].
1803	apply($.datepicker, [this[0]].concat(otherArgs));
1804	if (options == 'option' && arguments.length == 2 && typeof arguments[1] == 'string')
1805	return $.datepicker['_' + options + 'Datepicker'].
1806	apply($.datepicker, [this[0]].concat(otherArgs));
1807	return this.each(function() {
1808	typeof options == 'string' ?
1809	$.datepicker['_' + options + 'Datepicker'].
1810	apply($.datepicker, [this].concat(otherArgs)) :
1811	$.datepicker._attachDatepicker(this, options);
1812	});
1813	};
1814
1815	$.datepicker = new Datepicker(); // singleton instance
1816	$.datepicker.initialized = false;
1817	$.datepicker.uuid = new Date().getTime();
1818	$.datepicker.version = "1.8.15";
1819
1820	// Workaround for #4055
1821	// Add another global to avoid noConflict issues with inline event handlers
1822	window['DP_jQuery_' + dpuuid] = $;
1823
1824	})(jQuery);

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