1 /*

     2  * jQuery UI Datepicker 1.8.1

     3  *

     4  * Copyright (c) 2010 AUTHORS.txt (http://jqueryui.com/about)

     5  * Dual licensed under the MIT (MIT-LICENSE.txt)

     6  * and GPL (GPL-LICENSE.txt) licenses.

     7  *

     8  * http://docs.jquery.com/UI/Datepicker

     9  *

    10  * Depends:

    11  *	jquery.ui.core.js

    12  */

    13 

    14 (function($) { // hide the namespace

    15 

    16 $.extend($.ui, { datepicker: { version: "1.8.1" } });

    17 

    18 var PROP_NAME = 'datepicker';

    19 var dpuuid = new Date().getTime();

    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: 'show', // 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: '_default', // 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 = $('<div id="' + this._mainDivId + '" class="ui-datepicker ui-widget ui-widget-content ui-helper-clearfix ui-corner-all ui-helper-hidden-accessible"></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 	/* Debug logging (if enabled). */

   119 	log: function () {

   120 		if (this.debug)

   121 			console.log.apply('', arguments);

   122 	},

   123 	

   124 	// TODO rename to "widget" when switching to widget factory

   125 	_widgetDatepicker: function() {

   126 		return this.dpDiv;

   127 	},

   128 

   129 	/* Override the default settings for all instances of the date picker.

   130 	   @param  settings  object - the new settings to use as defaults (anonymous object)

   131 	   @return the manager object */

   132 	setDefaults: function(settings) {

   133 		extendRemove(this._defaults, settings || {});

   134 		return this;

   135 	},

   136 

   137 	/* Attach the date picker to a jQuery selection.

   138 	   @param  target    element - the target input field or division or span

   139 	   @param  settings  object - the new settings to use for this date picker instance (anonymous) */

   140 	_attachDatepicker: function(target, settings) {

   141 		// check for settings on the control itself - in namespace 'date:'

   142 		var inlineSettings = null;

   143 		for (var attrName in this._defaults) {

   144 			var attrValue = target.getAttribute('date:' + attrName);

   145 			if (attrValue) {

   146 				inlineSettings = inlineSettings || {};

   147 				try {

   148 					inlineSettings[attrName] = eval(attrValue);

   149 				} catch (err) {

   150 					inlineSettings[attrName] = attrValue;

   151 				}

   152 			}

   153 		}

   154 		var nodeName = target.nodeName.toLowerCase();

   155 		var inline = (nodeName == 'div' || nodeName == 'span');

   156 		if (!target.id)

   157 			target.id = 'dp' + (++this.uuid);

   158 		var inst = this._newInst($(target), inline);

   159 		inst.settings = $.extend({}, settings || {}, inlineSettings || {});

   160 		if (nodeName == 'input') {

   161 			this._connectDatepicker(target, inst);

   162 		} else if (inline) {

   163 			this._inlineDatepicker(target, inst);

   164 		}

   165 	},

   166 

   167 	/* Create a new instance object. */

   168 	_newInst: function(target, inline) {

   169 		var id = target[0].id.replace(/([^A-Za-z0-9_])/g, '\\\\$1'); // escape jQuery meta chars

   170 		return {id: id, input: target, // associated target

   171 			selectedDay: 0, selectedMonth: 0, selectedYear: 0, // current selection

   172 			drawMonth: 0, drawYear: 0, // month being drawn

   173 			inline: inline, // is datepicker inline or not

   174 			dpDiv: (!inline ? this.dpDiv : // presentation div

   175 			$('<div class="' + this._inlineClass + ' ui-datepicker ui-widget ui-widget-content ui-helper-clearfix ui-corner-all"></div>'))};

   176 	},

   177 

   178 	/* Attach the date picker to an input field. */

   179 	_connectDatepicker: function(target, inst) {

   180 		var input = $(target);

   181 		inst.append = $([]);

   182 		inst.trigger = $([]);

   183 		if (input.hasClass(this.markerClassName))

   184 			return;

   185 		this._attachments(input, inst);

   186 		input.addClass(this.markerClassName).keydown(this._doKeyDown).

   187 			keypress(this._doKeyPress).keyup(this._doKeyUp).

   188 			bind("setData.datepicker", function(event, key, value) {

   189 				inst.settings[key] = value;

   190 			}).bind("getData.datepicker", function(event, key) {

   191 				return this._get(inst, key);

   192 			});

   193 		this._autoSize(inst);

   194 		$.data(target, PROP_NAME, inst);

   195 	},

   196 

   197 	/* Make attachments based on settings. */

   198 	_attachments: function(input, inst) {

   199 		var appendText = this._get(inst, 'appendText');

   200 		var isRTL = this._get(inst, 'isRTL');

   201 		if (inst.append)

   202 			inst.append.remove();

   203 		if (appendText) {

   204 			inst.append = $('<span class="' + this._appendClass + '">' + appendText + '</span>');

   205 			input[isRTL ? 'before' : 'after'](inst.append);

   206 		}

   207 		input.unbind('focus', this._showDatepicker);

   208 		if (inst.trigger)

   209 			inst.trigger.remove();

   210 		var showOn = this._get(inst, 'showOn');

   211 		if (showOn == 'focus' || showOn == 'both') // pop-up date picker when in the marked field

   212 			input.focus(this._showDatepicker);

   213 		if (showOn == 'button' || showOn == 'both') { // pop-up date picker when button clicked

   214 			var buttonText = this._get(inst, 'buttonText');

   215 			var buttonImage = this._get(inst, 'buttonImage');

   216 			inst.trigger = $(this._get(inst, 'buttonImageOnly') ?

   217 				$('<img/>').addClass(this._triggerClass).

   218 					attr({ src: buttonImage, alt: buttonText, title: buttonText }) :

   219 				$('<button type="button"></button>').addClass(this._triggerClass).

   220 					html(buttonImage == '' ? buttonText : $('<img/>').attr(

   221 					{ src:buttonImage, alt:buttonText, title:buttonText })));

   222 			input[isRTL ? 'before' : 'after'](inst.trigger);

   223 			inst.trigger.click(function() {

   224 				if ($.datepicker._datepickerShowing && $.datepicker._lastInput == input[0])

   225 					$.datepicker._hideDatepicker();

   226 				else

   227 					$.datepicker._showDatepicker(input[0]);

   228 				return false;

   229 			});

   230 		}

   231 	},

   232 

   233 	/* Apply the maximum length for the date format. */

   234 	_autoSize: function(inst) {

   235 		if (this._get(inst, 'autoSize') && !inst.inline) {

   236 			var date = new Date(2009, 12 - 1, 20); // Ensure double digits

   237 			var dateFormat = this._get(inst, 'dateFormat');

   238 			if (dateFormat.match(/[DM]/)) {

   239 				var findMax = function(names) {

   240 					var max = 0;

   241 					var maxI = 0;

   242 					for (var i = 0; i < names.length; i++) {

   243 						if (names[i].length > max) {

   244 							max = names[i].length;

   245 							maxI = i;

   246 						}

   247 					}

   248 					return maxI;

   249 				};

   250 				date.setMonth(findMax(this._get(inst, (dateFormat.match(/MM/) ?

   251 					'monthNames' : 'monthNamesShort'))));

   252 				date.setDate(findMax(this._get(inst, (dateFormat.match(/DD/) ?

   253 					'dayNames' : 'dayNamesShort'))) + 20 - date.getDay());

   254 			}

   255 			inst.input.attr('size', this._formatDate(inst, date).length);

   256 		}

   257 	},

   258 

   259 	/* Attach an inline date picker to a div. */

   260 	_inlineDatepicker: function(target, inst) {

   261 		var divSpan = $(target);

   262 		if (divSpan.hasClass(this.markerClassName))

   263 			return;

   264 		divSpan.addClass(this.markerClassName).append(inst.dpDiv).

   265 			bind("setData.datepicker", function(event, key, value){

   266 				inst.settings[key] = value;

   267 			}).bind("getData.datepicker", function(event, key){

   268 				return this._get(inst, key);

   269 			});

   270 		$.data(target, PROP_NAME, inst);

   271 		this._setDate(inst, this._getDefaultDate(inst), true);

   272 		this._updateDatepicker(inst);

   273 		this._updateAlternate(inst);

   274 	},

   275 

   276 	/* Pop-up the date picker in a "dialog" box.

   277 	   @param  input     element - ignored

   278 	   @param  date      string or Date - the initial date to display

   279 	   @param  onSelect  function - the function to call when a date is selected

   280 	   @param  settings  object - update the dialog date picker instance's settings (anonymous object)

   281 	   @param  pos       int[2] - coordinates for the dialog's position within the screen or

   282 	                     event - with x/y coordinates or

   283 	                     leave empty for default (screen centre)

   284 	   @return the manager object */

   285 	_dialogDatepicker: function(input, date, onSelect, settings, pos) {

   286 		var inst = this._dialogInst; // internal instance

   287 		if (!inst) {

   288 			var id = 'dp' + (++this.uuid);

   289 			this._dialogInput = $('<input type="text" id="' + id +

   290 				'" style="position: absolute; top: -100px; width: 0px; z-index: -10;"/>');

   291 			this._dialogInput.keydown(this._doKeyDown);

   292 			$('body').append(this._dialogInput);

   293 			inst = this._dialogInst = this._newInst(this._dialogInput, false);

   294 			inst.settings = {};

   295 			$.data(this._dialogInput[0], PROP_NAME, inst);

   296 		}

   297 		extendRemove(inst.settings, settings || {});

   298 		date = (date && date.constructor == Date ? this._formatDate(inst, date) : date);

   299 		this._dialogInput.val(date);

   300 

   301 		this._pos = (pos ? (pos.length ? pos : [pos.pageX, pos.pageY]) : null);

   302 		if (!this._pos) {

   303 			var browserWidth = document.documentElement.clientWidth;

   304 			var browserHeight = document.documentElement.clientHeight;

   305 			var scrollX = document.documentElement.scrollLeft || document.body.scrollLeft;

   306 			var scrollY = document.documentElement.scrollTop || document.body.scrollTop;

   307 			this._pos = // should use actual width/height below

   308 				[(browserWidth / 2) - 100 + scrollX, (browserHeight / 2) - 150 + scrollY];

   309 		}

   310 

   311 		// move input on screen for focus, but hidden behind dialog

   312 		this._dialogInput.css('left', (this._pos[0] + 20) + 'px').css('top', this._pos[1] + 'px');

   313 		inst.settings.onSelect = onSelect;

   314 		this._inDialog = true;

   315 		this.dpDiv.addClass(this._dialogClass);

   316 		this._showDatepicker(this._dialogInput[0]);

   317 		if ($.blockUI)

   318 			$.blockUI(this.dpDiv);

   319 		$.data(this._dialogInput[0], PROP_NAME, inst);

   320 		return this;

   321 	},

   322 

   323 	/* Detach a datepicker from its control.

   324 	   @param  target    element - the target input field or division or span */

   325 	_destroyDatepicker: function(target) {

   326 		var $target = $(target);

   327 		var inst = $.data(target, PROP_NAME);

   328 		if (!$target.hasClass(this.markerClassName)) {

   329 			return;

   330 		}

   331 		var nodeName = target.nodeName.toLowerCase();

   332 		$.removeData(target, PROP_NAME);

   333 		if (nodeName == 'input') {

   334 			inst.append.remove();

   335 			inst.trigger.remove();

   336 			$target.removeClass(this.markerClassName).

   337 				unbind('focus', this._showDatepicker).

   338 				unbind('keydown', this._doKeyDown).

   339 				unbind('keypress', this._doKeyPress).

   340 				unbind('keyup', this._doKeyUp);

   341 		} else if (nodeName == 'div' || nodeName == 'span')

   342 			$target.removeClass(this.markerClassName).empty();

   343 	},

   344 

   345 	/* Enable the date picker to a jQuery selection.

   346 	   @param  target    element - the target input field or division or span */

   347 	_enableDatepicker: function(target) {

   348 		var $target = $(target);

   349 		var inst = $.data(target, PROP_NAME);

   350 		if (!$target.hasClass(this.markerClassName)) {

   351 			return;

   352 		}

   353 		var nodeName = target.nodeName.toLowerCase();

   354 		if (nodeName == 'input') {

   355 			target.disabled = false;

   356 			inst.trigger.filter('button').

   357 				each(function() { this.disabled = false; }).end().

   358 				filter('img').css({opacity: '1.0', cursor: ''});

   359 		}

   360 		else if (nodeName == 'div' || nodeName == 'span') {

   361 			var inline = $target.children('.' + this._inlineClass);

   362 			inline.children().removeClass('ui-state-disabled');

   363 		}

   364 		this._disabledInputs = $.map(this._disabledInputs,

   365 			function(value) { return (value == target ? null : value); }); // delete entry

   366 	},

   367 

   368 	/* Disable the date picker to a jQuery selection.

   369 	   @param  target    element - the target input field or division or span */

   370 	_disableDatepicker: function(target) {

   371 		var $target = $(target);

   372 		var inst = $.data(target, PROP_NAME);

   373 		if (!$target.hasClass(this.markerClassName)) {

   374 			return;

   375 		}

   376 		var nodeName = target.nodeName.toLowerCase();

   377 		if (nodeName == 'input') {

   378 			target.disabled = true;

   379 			inst.trigger.filter('button').

   380 				each(function() { this.disabled = true; }).end().

   381 				filter('img').css({opacity: '0.5', cursor: 'default'});

   382 		}

   383 		else if (nodeName == 'div' || nodeName == 'span') {

   384 			var inline = $target.children('.' + this._inlineClass);

   385 			inline.children().addClass('ui-state-disabled');

   386 		}

   387 		this._disabledInputs = $.map(this._disabledInputs,

   388 			function(value) { return (value == target ? null : value); }); // delete entry

   389 		this._disabledInputs[this._disabledInputs.length] = target;

   390 	},

   391 

   392 	/* Is the first field in a jQuery collection disabled as a datepicker?

   393 	   @param  target    element - the target input field or division or span

   394 	   @return boolean - true if disabled, false if enabled */

   395 	_isDisabledDatepicker: function(target) {

   396 		if (!target) {

   397 			return false;

   398 		}

   399 		for (var i = 0; i < this._disabledInputs.length; i++) {

   400 			if (this._disabledInputs[i] == target)

   401 				return true;

   402 		}

   403 		return false;

   404 	},

   405 

   406 	/* Retrieve the instance data for the target control.

   407 	   @param  target  element - the target input field or division or span

   408 	   @return  object - the associated instance data

   409 	   @throws  error if a jQuery problem getting data */

   410 	_getInst: function(target) {

   411 		try {

   412 			return $.data(target, PROP_NAME);

   413 		}

   414 		catch (err) {

   415 			throw 'Missing instance data for this datepicker';

   416 		}

   417 	},

   418 

   419 	/* Update or retrieve the settings for a date picker attached to an input field or division.

   420 	   @param  target  element - the target input field or division or span

   421 	   @param  name    object - the new settings to update or

   422 	                   string - the name of the setting to change or retrieve,

   423 	                   when retrieving also 'all' for all instance settings or

   424 	                   'defaults' for all global defaults

   425 	   @param  value   any - the new value for the setting

   426 	                   (omit if above is an object or to retrieve a value) */

   427 	_optionDatepicker: function(target, name, value) {

   428 		var inst = this._getInst(target);

   429 		if (arguments.length == 2 && typeof name == 'string') {

   430 			return (name == 'defaults' ? $.extend({}, $.datepicker._defaults) :

   431 				(inst ? (name == 'all' ? $.extend({}, inst.settings) :

   432 				this._get(inst, name)) : null));

   433 		}

   434 		var settings = name || {};

   435 		if (typeof name == 'string') {

   436 			settings = {};

   437 			settings[name] = value;

   438 		}

   439 		if (inst) {

   440 			if (this._curInst == inst) {

   441 				this._hideDatepicker();

   442 			}

   443 			var date = this._getDateDatepicker(target, true);

   444 			extendRemove(inst.settings, settings);

   445 			this._attachments($(target), inst);

   446 			this._autoSize(inst);

   447 			this._setDateDatepicker(target, date);

   448 			this._updateDatepicker(inst);

   449 		}

   450 	},

   451 

   452 	// change method deprecated

   453 	_changeDatepicker: function(target, name, value) {

   454 		this._optionDatepicker(target, name, value);

   455 	},

   456 

   457 	/* Redraw the date picker attached to an input field or division.

   458 	   @param  target  element - the target input field or division or span */

   459 	_refreshDatepicker: function(target) {

   460 		var inst = this._getInst(target);

   461 		if (inst) {

   462 			this._updateDatepicker(inst);

   463 		}

   464 	},

   465 

   466 	/* Set the dates for a jQuery selection.

   467 	   @param  target   element - the target input field or division or span

   468 	   @param  date     Date - the new date */

   469 	_setDateDatepicker: function(target, date) {

   470 		var inst = this._getInst(target);

   471 		if (inst) {

   472 			this._setDate(inst, date);

   473 			this._updateDatepicker(inst);

   474 			this._updateAlternate(inst);

   475 		}

   476 	},

   477 

   478 	/* Get the date(s) for the first entry in a jQuery selection.

   479 	   @param  target     element - the target input field or division or span

   480 	   @param  noDefault  boolean - true if no default date is to be used

   481 	   @return Date - the current date */

   482 	_getDateDatepicker: function(target, noDefault) {

   483 		var inst = this._getInst(target);

   484 		if (inst && !inst.inline)

   485 			this._setDateFromField(inst, noDefault);

   486 		return (inst ? this._getDate(inst) : null);

   487 	},

   488 

   489 	/* Handle keystrokes. */

   490 	_doKeyDown: function(event) {

   491 		var inst = $.datepicker._getInst(event.target);

   492 		var handled = true;

   493 		var isRTL = inst.dpDiv.is('.ui-datepicker-rtl');

   494 		inst._keyEvent = true;

   495 		if ($.datepicker._datepickerShowing)

   496 			switch (event.keyCode) {

   497 				case 9: $.datepicker._hideDatepicker();

   498 						handled = false;

   499 						break; // hide on tab out

   500 				case 13: var sel = $('td.' + $.datepicker._dayOverClass, inst.dpDiv).

   501 							add($('td.' + $.datepicker._currentClass, inst.dpDiv));

   502 						if (sel[0])

   503 							$.datepicker._selectDay(event.target, inst.selectedMonth, inst.selectedYear, sel[0]);

   504 						else

   505 							$.datepicker._hideDatepicker();

   506 						return false; // don't submit the form

   507 						break; // select the value on enter

   508 				case 27: $.datepicker._hideDatepicker();

   509 						break; // hide on escape

   510 				case 33: $.datepicker._adjustDate(event.target, (event.ctrlKey ?

   511 							-$.datepicker._get(inst, 'stepBigMonths') :

   512 							-$.datepicker._get(inst, 'stepMonths')), 'M');

   513 						break; // previous month/year on page up/+ ctrl

   514 				case 34: $.datepicker._adjustDate(event.target, (event.ctrlKey ?

   515 							+$.datepicker._get(inst, 'stepBigMonths') :

   516 							+$.datepicker._get(inst, 'stepMonths')), 'M');

   517 						break; // next month/year on page down/+ ctrl

   518 				case 35: if (event.ctrlKey || event.metaKey) $.datepicker._clearDate(event.target);

   519 						handled = event.ctrlKey || event.metaKey;

   520 						break; // clear on ctrl or command +end

   521 				case 36: if (event.ctrlKey || event.metaKey) $.datepicker._gotoToday(event.target);

   522 						handled = event.ctrlKey || event.metaKey;

   523 						break; // current on ctrl or command +home

   524 				case 37: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, (isRTL ? +1 : -1), 'D');

   525 						handled = event.ctrlKey || event.metaKey;

   526 						// -1 day on ctrl or command +left

   527 						if (event.originalEvent.altKey) $.datepicker._adjustDate(event.target, (event.ctrlKey ?

   528 									-$.datepicker._get(inst, 'stepBigMonths') :

   529 									-$.datepicker._get(inst, 'stepMonths')), 'M');

   530 						// next month/year on alt +left on Mac

   531 						break;

   532 				case 38: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, -7, 'D');

   533 						handled = event.ctrlKey || event.metaKey;

   534 						break; // -1 week on ctrl or command +up

   535 				case 39: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, (isRTL ? -1 : +1), 'D');

   536 						handled = event.ctrlKey || event.metaKey;

   537 						// +1 day on ctrl or command +right

   538 						if (event.originalEvent.altKey) $.datepicker._adjustDate(event.target, (event.ctrlKey ?

   539 									+$.datepicker._get(inst, 'stepBigMonths') :

   540 									+$.datepicker._get(inst, 'stepMonths')), 'M');

   541 						// next month/year on alt +right

   542 						break;

   543 				case 40: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, +7, 'D');

   544 						handled = event.ctrlKey || event.metaKey;

   545 						break; // +1 week on ctrl or command +down

   546 				default: handled = false;

   547 			}

   548 		else if (event.keyCode == 36 && event.ctrlKey) // display the date picker on ctrl+home

   549 			$.datepicker._showDatepicker(this);

   550 		else {

   551 			handled = false;

   552 		}

   553 		if (handled) {

   554 			event.preventDefault();

   555 			event.stopPropagation();

   556 		}

   557 	},

   558 

   559 	/* Filter entered characters - based on date format. */

   560 	_doKeyPress: function(event) {

   561 		var inst = $.datepicker._getInst(event.target);

   562 		if ($.datepicker._get(inst, 'constrainInput')) {

   563 			var chars = $.datepicker._possibleChars($.datepicker._get(inst, 'dateFormat'));

   564 			var chr = String.fromCharCode(event.charCode == undefined ? event.keyCode : event.charCode);

   565 			return event.ctrlKey || (chr < ' ' || !chars || chars.indexOf(chr) > -1);

   566 		}

   567 	},

   568 

   569 	/* Synchronise manual entry and field/alternate field. */

   570 	_doKeyUp: function(event) {

   571 		var inst = $.datepicker._getInst(event.target);

   572 		if (inst.input.val() != inst.lastVal) {

   573 			try {

   574 				var date = $.datepicker.parseDate($.datepicker._get(inst, 'dateFormat'),

   575 					(inst.input ? inst.input.val() : null),

   576 					$.datepicker._getFormatConfig(inst));

   577 				if (date) { // only if valid

   578 					$.datepicker._setDateFromField(inst);

   579 					$.datepicker._updateAlternate(inst);

   580 					$.datepicker._updateDatepicker(inst);

   581 				}

   582 			}

   583 			catch (event) {

   584 				$.datepicker.log(event);

   585 			}

   586 		}

   587 		return true;

   588 	},

   589 

   590 	/* Pop-up the date picker for a given input field.

   591 	   @param  input  element - the input field attached to the date picker or

   592 	                  event - if triggered by focus */

   593 	_showDatepicker: function(input) {

   594 		input = input.target || input;

   595 		if (input.nodeName.toLowerCase() != 'input') // find from button/image trigger

   596 			input = $('input', input.parentNode)[0];

   597 		if ($.datepicker._isDisabledDatepicker(input) || $.datepicker._lastInput == input) // already here

   598 			return;

   599 		var inst = $.datepicker._getInst(input);

   600 		if ($.datepicker._curInst && $.datepicker._curInst != inst) {

   601 			$.datepicker._curInst.dpDiv.stop(true, true);

   602 		}

   603 		var beforeShow = $.datepicker._get(inst, 'beforeShow');

   604 		extendRemove(inst.settings, (beforeShow ? beforeShow.apply(input, [input, inst]) : {}));

   605 		inst.lastVal = null;

   606 		$.datepicker._lastInput = input;

   607 		$.datepicker._setDateFromField(inst);

   608 		if ($.datepicker._inDialog) // hide cursor

   609 			input.value = '';

   610 		if (!$.datepicker._pos) { // position below input

   611 			$.datepicker._pos = $.datepicker._findPos(input);

   612 			$.datepicker._pos[1] += input.offsetHeight; // add the height

   613 		}

   614 		var isFixed = false;

   615 		$(input).parents().each(function() {

   616 			isFixed |= $(this).css('position') == 'fixed';

   617 			return !isFixed;

   618 		});

   619 		if (isFixed && $.browser.opera) { // correction for Opera when fixed and scrolled

   620 			$.datepicker._pos[0] -= document.documentElement.scrollLeft;

   621 			$.datepicker._pos[1] -= document.documentElement.scrollTop;

   622 		}

   623 		var offset = {left: $.datepicker._pos[0], top: $.datepicker._pos[1]};

   624 		$.datepicker._pos = null;

   625 		// determine sizing offscreen

   626 		inst.dpDiv.css({position: 'absolute', display: 'block', top: '-1000px'});

   627 		$.datepicker._updateDatepicker(inst);

   628 		// fix width for dynamic number of date pickers

   629 		// and adjust position before showing

   630 		offset = $.datepicker._checkOffset(inst, offset, isFixed);

   631 		inst.dpDiv.css({position: ($.datepicker._inDialog && $.blockUI ?

   632 			'static' : (isFixed ? 'fixed' : 'absolute')), display: 'none',

   633 			left: offset.left + 'px', top: offset.top + 'px'});

   634 		if (!inst.inline) {

   635 			var showAnim = $.datepicker._get(inst, 'showAnim');

   636 			var duration = $.datepicker._get(inst, 'duration');

   637 			var postProcess = function() {

   638 				$.datepicker._datepickerShowing = true;

   639 				var borders = $.datepicker._getBorders(inst.dpDiv);

   640 				inst.dpDiv.find('iframe.ui-datepicker-cover'). // IE6- only

   641 					css({left: -borders[0], top: -borders[1],

   642 						width: inst.dpDiv.outerWidth(), height: inst.dpDiv.outerHeight()});

   643 			};

   644 			inst.dpDiv.zIndex($(input).zIndex()+1);

   645 			if ($.effects && $.effects[showAnim])

   646 				inst.dpDiv.show(showAnim, $.datepicker._get(inst, 'showOptions'), duration, postProcess);

   647 			else

   648 				inst.dpDiv[showAnim || 'show']((showAnim ? duration : null), postProcess);

   649 			if (!showAnim || !duration)

   650 				postProcess();

   651 			if (inst.input.is(':visible') && !inst.input.is(':disabled'))

   652 				inst.input.focus();

   653 			$.datepicker._curInst = inst;

   654 		}

   655 	},

   656 

   657 	/* Generate the date picker content. */

   658 	_updateDatepicker: function(inst) {

   659 		var self = this;

   660 		var borders = $.datepicker._getBorders(inst.dpDiv);

   661 		inst.dpDiv.empty().append(this._generateHTML(inst))

   662 			.find('iframe.ui-datepicker-cover') // IE6- only

   663 				.css({left: -borders[0], top: -borders[1],

   664 					width: inst.dpDiv.outerWidth(), height: inst.dpDiv.outerHeight()})

   665 			.end()

   666 			.find('button, .ui-datepicker-prev, .ui-datepicker-next, .ui-datepicker-calendar td a')

   667 				.bind('mouseout', function(){

   668 					$(this).removeClass('ui-state-hover');

   669 					if(this.className.indexOf('ui-datepicker-prev') != -1) $(this).removeClass('ui-datepicker-prev-hover');

   670 					if(this.className.indexOf('ui-datepicker-next') != -1) $(this).removeClass('ui-datepicker-next-hover');

   671 				})

   672 				.bind('mouseover', function(){

   673 					if (!self._isDisabledDatepicker( inst.inline ? inst.dpDiv.parent()[0] : inst.input[0])) {

   674 						$(this).parents('.ui-datepicker-calendar').find('a').removeClass('ui-state-hover');

   675 						$(this).addClass('ui-state-hover');

   676 						if(this.className.indexOf('ui-datepicker-prev') != -1) $(this).addClass('ui-datepicker-prev-hover');

   677 						if(this.className.indexOf('ui-datepicker-next') != -1) $(this).addClass('ui-datepicker-next-hover');

   678 					}

   679 				})

   680 			.end()

   681 			.find('.' + this._dayOverClass + ' a')

   682 				.trigger('mouseover')

   683 			.end();

   684 		var numMonths = this._getNumberOfMonths(inst);

   685 		var cols = numMonths[1];

   686 		var width = 17;

   687 		if (cols > 1)

   688 			inst.dpDiv.addClass('ui-datepicker-multi-' + cols).css('width', (width * cols) + 'em');

   689 		else

   690 			inst.dpDiv.removeClass('ui-datepicker-multi-2 ui-datepicker-multi-3 ui-datepicker-multi-4').width('');

   691 		inst.dpDiv[(numMonths[0] != 1 || numMonths[1] != 1 ? 'add' : 'remove') +

   692 			'Class']('ui-datepicker-multi');

   693 		inst.dpDiv[(this._get(inst, 'isRTL') ? 'add' : 'remove') +

   694 			'Class']('ui-datepicker-rtl');

   695 		if (inst == $.datepicker._curInst && $.datepicker._datepickerShowing && inst.input &&

   696 				inst.input.is(':visible') && !inst.input.is(':disabled'))

   697 			inst.input.focus();

   698 	},

   699 

   700 	/* Retrieve the size of left and top borders for an element.

   701 	   @param  elem  (jQuery object) the element of interest

   702 	   @return  (number[2]) the left and top borders */

   703 	_getBorders: function(elem) {

   704 		var convert = function(value) {

   705 			return {thin: 1, medium: 2, thick: 3}[value] || value;

   706 		};

   707 		return [parseFloat(convert(elem.css('border-left-width'))),

   708 			parseFloat(convert(elem.css('border-top-width')))];

   709 	},

   710 

   711 	/* Check positioning to remain on screen. */

   712 	_checkOffset: function(inst, offset, isFixed) {

   713 		var dpWidth = inst.dpDiv.outerWidth();

   714 		var dpHeight = inst.dpDiv.outerHeight();

   715 		var inputWidth = inst.input ? inst.input.outerWidth() : 0;

   716 		var inputHeight = inst.input ? inst.input.outerHeight() : 0;

   717 		var viewWidth = document.documentElement.clientWidth + $(document).scrollLeft();

   718 		var viewHeight = document.documentElement.clientHeight + $(document).scrollTop();

   719 

   720 		offset.left -= (this._get(inst, 'isRTL') ? (dpWidth - inputWidth) : 0);

   721 		offset.left -= (isFixed && offset.left == inst.input.offset().left) ? $(document).scrollLeft() : 0;

   722 		offset.top -= (isFixed && offset.top == (inst.input.offset().top + inputHeight)) ? $(document).scrollTop() : 0;

   723 

   724 		// now check if datepicker is showing outside window viewport - move to a better place if so.

   725 		offset.left -= Math.min(offset.left, (offset.left + dpWidth > viewWidth && viewWidth > dpWidth) ?

   726 			Math.abs(offset.left + dpWidth - viewWidth) : 0);

   727 		offset.top -= Math.min(offset.top, (offset.top + dpHeight > viewHeight && viewHeight > dpHeight) ?

   728 			Math.abs(dpHeight + inputHeight) : 0);

   729 

   730 		return offset;

   731 	},

   732 

   733 	/* Find an object's position on the screen. */

   734 	_findPos: function(obj) {

   735 		var inst = this._getInst(obj);

   736 		var isRTL = this._get(inst, 'isRTL');

   737         while (obj && (obj.type == 'hidden' || obj.nodeType != 1)) {

   738             obj = obj[isRTL ? 'previousSibling' : 'nextSibling'];

   739         }

   740         var position = $(obj).offset();

   741 	    return [position.left, position.top];

   742 	},

   743 

   744 	/* Hide the date picker from view.

   745 	   @param  input  element - the input field attached to the date picker */

   746 	_hideDatepicker: function(input) {

   747 		var inst = this._curInst;

   748 		if (!inst || (input && inst != $.data(input, PROP_NAME)))

   749 			return;

   750 		if (this._datepickerShowing) {

   751 			var showAnim = this._get(inst, 'showAnim');

   752 			var duration = this._get(inst, 'duration');

   753 			var postProcess = function() {

   754 				$.datepicker._tidyDialog(inst);

   755 				this._curInst = null;

   756 			};

   757 			if ($.effects && $.effects[showAnim])

   758 				inst.dpDiv.hide(showAnim, $.datepicker._get(inst, 'showOptions'), duration, postProcess);

   759 			else

   760 				inst.dpDiv[(showAnim == 'slideDown' ? 'slideUp' :

   761 					(showAnim == 'fadeIn' ? 'fadeOut' : 'hide'))]((showAnim ? duration : null), postProcess);

   762 			if (!showAnim)

   763 				postProcess();

   764 			var onClose = this._get(inst, 'onClose');

   765 			if (onClose)

   766 				onClose.apply((inst.input ? inst.input[0] : null),

   767 					[(inst.input ? inst.input.val() : ''), inst]);  // trigger custom callback

   768 			this._datepickerShowing = false;

   769 			this._lastInput = null;

   770 			if (this._inDialog) {

   771 				this._dialogInput.css({ position: 'absolute', left: '0', top: '-100px' });

   772 				if ($.blockUI) {

   773 					$.unblockUI();

   774 					$('body').append(this.dpDiv);

   775 				}

   776 			}

   777 			this._inDialog = false;

   778 		}

   779 	},

   780 

   781 	/* Tidy up after a dialog display. */

   782 	_tidyDialog: function(inst) {

   783 		inst.dpDiv.removeClass(this._dialogClass).unbind('.ui-datepicker-calendar');

   784 	},

   785 

   786 	/* Close date picker if clicked elsewhere. */

   787 	_checkExternalClick: function(event) {

   788 		if (!$.datepicker._curInst)

   789 			return;

   790 		var $target = $(event.target);

   791 		if ($target[0].id != $.datepicker._mainDivId &&

   792 				$target.parents('#' + $.datepicker._mainDivId).length == 0 &&

   793 				!$target.hasClass($.datepicker.markerClassName) &&

   794 				!$target.hasClass($.datepicker._triggerClass) &&

   795 				$.datepicker._datepickerShowing && !($.datepicker._inDialog && $.blockUI))

   796 			$.datepicker._hideDatepicker();

   797 	},

   798 

   799 	/* Adjust one of the date sub-fields. */

   800 	_adjustDate: function(id, offset, period) {

   801 		var target = $(id);

   802 		var inst = this._getInst(target[0]);

   803 		if (this._isDisabledDatepicker(target[0])) {

   804 			return;

   805 		}

   806 		this._adjustInstDate(inst, offset +

   807 			(period == 'M' ? this._get(inst, 'showCurrentAtPos') : 0), // undo positioning

   808 			period);

   809 		this._updateDatepicker(inst);

   810 	},

   811 

   812 	/* Action for current link. */

   813 	_gotoToday: function(id) {

   814 		var target = $(id);

   815 		var inst = this._getInst(target[0]);

   816 		if (this._get(inst, 'gotoCurrent') && inst.currentDay) {

   817 			inst.selectedDay = inst.currentDay;

   818 			inst.drawMonth = inst.selectedMonth = inst.currentMonth;

   819 			inst.drawYear = inst.selectedYear = inst.currentYear;

   820 		}

   821 		else {

   822 			var date = new Date();

   823 			inst.selectedDay = date.getDate();

   824 			inst.drawMonth = inst.selectedMonth = date.getMonth();

   825 			inst.drawYear = inst.selectedYear = date.getFullYear();

   826 		}

   827 		this._notifyChange(inst);

   828 		this._adjustDate(target);

   829 	},

   830 

   831 	/* Action for selecting a new month/year. */

   832 	_selectMonthYear: function(id, select, period) {

   833 		var target = $(id);

   834 		var inst = this._getInst(target[0]);

   835 		inst._selectingMonthYear = false;

   836 		inst['selected' + (period == 'M' ? 'Month' : 'Year')] =

   837 		inst['draw' + (period == 'M' ? 'Month' : 'Year')] =

   838 			parseInt(select.options[select.selectedIndex].value,10);

   839 		this._notifyChange(inst);

   840 		this._adjustDate(target);

   841 	},

   842 

   843 	/* Restore input focus after not changing month/year. */

   844 	_clickMonthYear: function(id) {

   845 		var target = $(id);

   846 		var inst = this._getInst(target[0]);

   847 		if (inst.input && inst._selectingMonthYear && !$.browser.msie)

   848 			inst.input.focus();

   849 		inst._selectingMonthYear = !inst._selectingMonthYear;

   850 	},

   851 

   852 	/* Action for selecting a day. */

   853 	_selectDay: function(id, month, year, td) {

   854 		var target = $(id);

   855 		if ($(td).hasClass(this._unselectableClass) || this._isDisabledDatepicker(target[0])) {

   856 			return;

   857 		}

   858 		var inst = this._getInst(target[0]);

   859 		inst.selectedDay = inst.currentDay = $('a', td).html();

   860 		inst.selectedMonth = inst.currentMonth = month;

   861 		inst.selectedYear = inst.currentYear = year;

   862 		this._selectDate(id, this._formatDate(inst,

   863 			inst.currentDay, inst.currentMonth, inst.currentYear));

   864 	},

   865 

   866 	/* Erase the input field and hide the date picker. */

   867 	_clearDate: function(id) {

   868 		var target = $(id);

   869 		var inst = this._getInst(target[0]);

   870 		this._selectDate(target, '');

   871 	},

   872 

   873 	/* Update the input field with the selected date. */

   874 	_selectDate: function(id, dateStr) {

   875 		var target = $(id);

   876 		var inst = this._getInst(target[0]);

   877 		dateStr = (dateStr != null ? dateStr : this._formatDate(inst));

   878 		if (inst.input)

   879 			inst.input.val(dateStr);

   880 		this._updateAlternate(inst);

   881 		var onSelect = this._get(inst, 'onSelect');

   882 		if (onSelect)

   883 			onSelect.apply((inst.input ? inst.input[0] : null), [dateStr, inst]);  // trigger custom callback

   884 		else if (inst.input)

   885 			inst.input.trigger('change'); // fire the change event

   886 		if (inst.inline)

   887 			this._updateDatepicker(inst);

   888 		else {

   889 			this._hideDatepicker();

   890 			this._lastInput = inst.input[0];

   891 			if (typeof(inst.input[0]) != 'object')

   892 				inst.input.focus(); // restore focus

   893 			this._lastInput = null;

   894 		}

   895 	},

   896 

   897 	/* Update any alternate field to synchronise with the main field. */

   898 	_updateAlternate: function(inst) {

   899 		var altField = this._get(inst, 'altField');

   900 		if (altField) { // update alternate field too

   901 			var altFormat = this._get(inst, 'altFormat') || this._get(inst, 'dateFormat');

   902 			var date = this._getDate(inst);

   903 			var dateStr = this.formatDate(altFormat, date, this._getFormatConfig(inst));

   904 			$(altField).each(function() { $(this).val(dateStr); });

   905 		}

   906 	},

   907 

   908 	/* Set as beforeShowDay function to prevent selection of weekends.

   909 	   @param  date  Date - the date to customise

   910 	   @return [boolean, string] - is this date selectable?, what is its CSS class? */

   911 	noWeekends: function(date) {

   912 		var day = date.getDay();

   913 		return [(day > 0 && day < 6), ''];

   914 	},

   915 

   916 	/* Set as calculateWeek to determine the week of the year based on the ISO 8601 definition.

   917 	   @param  date  Date - the date to get the week for

   918 	   @return  number - the number of the week within the year that contains this date */

   919 	iso8601Week: function(date) {

   920 		var checkDate = new Date(date.getTime());

   921 		// Find Thursday of this week starting on Monday

   922 		checkDate.setDate(checkDate.getDate() + 4 - (checkDate.getDay() || 7));

   923 		var time = checkDate.getTime();

   924 		checkDate.setMonth(0); // Compare with Jan 1

   925 		checkDate.setDate(1);

   926 		return Math.floor(Math.round((time - checkDate) / 86400000) / 7) + 1;

   927 	},

   928 

   929 	/* Parse a string value into a date object.

   930 	   See formatDate below for the possible formats.

   931 

   932 	   @param  format    string - the expected format of the date

   933 	   @param  value     string - the date in the above format

   934 	   @param  settings  Object - attributes include:

   935 	                     shortYearCutoff  number - the cutoff year for determining the century (optional)

   936 	                     dayNamesShort    string[7] - abbreviated names of the days from Sunday (optional)

   937 	                     dayNames         string[7] - names of the days from Sunday (optional)

   938 	                     monthNamesShort  string[12] - abbreviated names of the months (optional)

   939 	                     monthNames       string[12] - names of the months (optional)

   940 	   @return  Date - the extracted date value or null if value is blank */

   941 	parseDate: function (format, value, settings) {

   942 		if (format == null || value == null)

   943 			throw 'Invalid arguments';

   944 		value = (typeof value == 'object' ? value.toString() : value + '');

   945 		if (value == '')

   946 			return null;

   947 		var shortYearCutoff = (settings ? settings.shortYearCutoff : null) || this._defaults.shortYearCutoff;

   948 		var dayNamesShort = (settings ? settings.dayNamesShort : null) || this._defaults.dayNamesShort;

   949 		var dayNames = (settings ? settings.dayNames : null) || this._defaults.dayNames;

   950 		var monthNamesShort = (settings ? settings.monthNamesShort : null) || this._defaults.monthNamesShort;

   951 		var monthNames = (settings ? settings.monthNames : null) || this._defaults.monthNames;

   952 		var year = -1;

   953 		var month = -1;

   954 		var day = -1;

   955 		var doy = -1;

   956 		var literal = false;

   957 		// Check whether a format character is doubled

   958 		var lookAhead = function(match) {

   959 			var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) == match);

   960 			if (matches)

   961 				iFormat++;

   962 			return matches;

   963 		};

   964 		// Extract a number from the string value

   965 		var getNumber = function(match) {

   966 			lookAhead(match);

   967 			var size = (match == '@' ? 14 : (match == '!' ? 20 :

   968 				(match == 'y' ? 4 : (match == 'o' ? 3 : 2))));

   969 			var digits = new RegExp('^\\d{1,' + size + '}');

   970 			var num = value.substring(iValue).match(digits);

   971 			if (!num)

   972 				throw 'Missing number at position ' + iValue;

   973 			iValue += num[0].length;

   974 			return parseInt(num[0], 10);

   975 		};

   976 		// Extract a name from the string value and convert to an index

   977 		var getName = function(match, shortNames, longNames) {

   978 			var names = (lookAhead(match) ? longNames : shortNames);

   979 			for (var i = 0; i < names.length; i++) {

   980 				if (value.substr(iValue, names[i].length) == names[i]) {

   981 					iValue += names[i].length;

   982 					return i + 1;

   983 				}

   984 			}

   985 			throw 'Unknown name at position ' + iValue;

   986 		};

   987 		// Confirm that a literal character matches the string value

   988 		var checkLiteral = function() {

   989 			if (value.charAt(iValue) != format.charAt(iFormat))

   990 				throw 'Unexpected literal at position ' + iValue;

   991 			iValue++;

   992 		};

   993 		var iValue = 0;

   994 		for (var iFormat = 0; iFormat < format.length; iFormat++) {

   995 			if (literal)

   996 				if (format.charAt(iFormat) == "'" && !lookAhead("'"))

   997 					literal = false;

   998 				else

   999 					checkLiteral();

  1000 			else

  1001 				switch (format.charAt(iFormat)) {

  1002 					case 'd':

  1003 						day = getNumber('d');

  1004 						break;

  1005 					case 'D':

  1006 						getName('D', dayNamesShort, dayNames);

  1007 						break;

  1008 					case 'o':

  1009 						doy = getNumber('o');

  1010 						break;

  1011 					case 'm':

  1012 						month = getNumber('m');

  1013 						break;

  1014 					case 'M':

  1015 						month = getName('M', monthNamesShort, monthNames);

  1016 						break;

  1017 					case 'y':

  1018 						year = getNumber('y');

  1019 						break;

  1020 					case '@':

  1021 						var date = new Date(getNumber('@'));

  1022 						year = date.getFullYear();

  1023 						month = date.getMonth() + 1;

  1024 						day = date.getDate();

  1025 						break;

  1026 					case '!':

  1027 						var date = new Date((getNumber('!') - this._ticksTo1970) / 10000);

  1028 						year = date.getFullYear();

  1029 						month = date.getMonth() + 1;

  1030 						day = date.getDate();

  1031 						break;

  1032 					case "'":

  1033 						if (lookAhead("'"))

  1034 							checkLiteral();

  1035 						else

  1036 							literal = true;

  1037 						break;

  1038 					default:

  1039 						checkLiteral();

  1040 				}

  1041 		}

  1042 		if (year == -1)

  1043 			year = new Date().getFullYear();

  1044 		else if (year < 100)

  1045 			year += new Date().getFullYear() - new Date().getFullYear() % 100 +

  1046 				(year <= shortYearCutoff ? 0 : -100);

  1047 		if (doy > -1) {

  1048 			month = 1;

  1049 			day = doy;

  1050 			do {

  1051 				var dim = this._getDaysInMonth(year, month - 1);

  1052 				if (day <= dim)

  1053 					break;

  1054 				month++;

  1055 				day -= dim;

  1056 			} while (true);

  1057 		}

  1058 		var date = this._daylightSavingAdjust(new Date(year, month - 1, day));

  1059 		if (date.getFullYear() != year || date.getMonth() + 1 != month || date.getDate() != day)

  1060 			throw 'Invalid date'; // E.g. 31/02/*

  1061 		return date;

  1062 	},

  1063 

  1064 	/* Standard date formats. */

  1065 	ATOM: 'yy-mm-dd', // RFC 3339 (ISO 8601)

  1066 	COOKIE: 'D, dd M yy',

  1067 	ISO_8601: 'yy-mm-dd',

  1068 	RFC_822: 'D, d M y',

  1069 	RFC_850: 'DD, dd-M-y',

  1070 	RFC_1036: 'D, d M y',

  1071 	RFC_1123: 'D, d M yy',

  1072 	RFC_2822: 'D, d M yy',

  1073 	RSS: 'D, d M y', // RFC 822

  1074 	TICKS: '!',

  1075 	TIMESTAMP: '@',

  1076 	W3C: 'yy-mm-dd', // ISO 8601

  1077 

  1078 	_ticksTo1970: (((1970 - 1) * 365 + Math.floor(1970 / 4) - Math.floor(1970 / 100) +

  1079 		Math.floor(1970 / 400)) * 24 * 60 * 60 * 10000000),

  1080 

  1081 	/* Format a date object into a string value.

  1082 	   The format can be combinations of the following:

  1083 	   d  - day of month (no leading zero)

  1084 	   dd - day of month (two digit)

  1085 	   o  - day of year (no leading zeros)

  1086 	   oo - day of year (three digit)

  1087 	   D  - day name short

  1088 	   DD - day name long

  1089 	   m  - month of year (no leading zero)

  1090 	   mm - month of year (two digit)

  1091 	   M  - month name short

  1092 	   MM - month name long

  1093 	   y  - year (two digit)

  1094 	   yy - year (four digit)

  1095 	   @ - Unix timestamp (ms since 01/01/1970)

  1096 	   ! - Windows ticks (100ns since 01/01/0001)

  1097 	   '...' - literal text

  1098 	   '' - single quote

  1099 

  1100 	   @param  format    string - the desired format of the date

  1101 	   @param  date      Date - the date value to format

  1102 	   @param  settings  Object - attributes include:

  1103 	                     dayNamesShort    string[7] - abbreviated names of the days from Sunday (optional)

  1104 	                     dayNames         string[7] - names of the days from Sunday (optional)

  1105 	                     monthNamesShort  string[12] - abbreviated names of the months (optional)

  1106 	                     monthNames       string[12] - names of the months (optional)

  1107 	   @return  string - the date in the above format */

  1108 	formatDate: function (format, date, settings) {

  1109 		if (!date)

  1110 			return '';

  1111 		var dayNamesShort = (settings ? settings.dayNamesShort : null) || this._defaults.dayNamesShort;

  1112 		var dayNames = (settings ? settings.dayNames : null) || this._defaults.dayNames;

  1113 		var monthNamesShort = (settings ? settings.monthNamesShort : null) || this._defaults.monthNamesShort;

  1114 		var monthNames = (settings ? settings.monthNames : null) || this._defaults.monthNames;

  1115 		// Check whether a format character is doubled

  1116 		var lookAhead = function(match) {

  1117 			var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) == match);

  1118 			if (matches)

  1119 				iFormat++;

  1120 			return matches;

  1121 		};

  1122 		// Format a number, with leading zero if necessary

  1123 		var formatNumber = function(match, value, len) {

  1124 			var num = '' + value;

  1125 			if (lookAhead(match))

  1126 				while (num.length < len)

  1127 					num = '0' + num;

  1128 			return num;

  1129 		};

  1130 		// Format a name, short or long as requested

  1131 		var formatName = function(match, value, shortNames, longNames) {

  1132 			return (lookAhead(match) ? longNames[value] : shortNames[value]);

  1133 		};

  1134 		var output = '';