src/main/webapp/jquery/js/jquery.ui.datepicker.js
changeset 78 7af1b5887759
equal deleted inserted replaced
77:8f0eddd7aa85 78:7af1b5887759
       
     1 /*
       
     2  * jQuery UI Datepicker 1.8.18
       
     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: "1.8.18" } });
       
    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 if ($.datepicker._datepickerShowing && $.datepicker._lastInput != input[0]) {
       
   237 					$.datepicker._hideDatepicker(); 
       
   238 					$.datepicker._showDatepicker(input[0]);
       
   239 				} else
       
   240 					$.datepicker._showDatepicker(input[0]);
       
   241 				return false;
       
   242 			});
       
   243 		}
       
   244 	},
       
   245 
       
   246 	/* Apply the maximum length for the date format. */
       
   247 	_autoSize: function(inst) {
       
   248 		if (this._get(inst, 'autoSize') && !inst.inline) {
       
   249 			var date = new Date(2009, 12 - 1, 20); // Ensure double digits
       
   250 			var dateFormat = this._get(inst, 'dateFormat');
       
   251 			if (dateFormat.match(/[DM]/)) {
       
   252 				var findMax = function(names) {
       
   253 					var max = 0;
       
   254 					var maxI = 0;
       
   255 					for (var i = 0; i < names.length; i++) {
       
   256 						if (names[i].length > max) {
       
   257 							max = names[i].length;
       
   258 							maxI = i;
       
   259 						}
       
   260 					}
       
   261 					return maxI;
       
   262 				};
       
   263 				date.setMonth(findMax(this._get(inst, (dateFormat.match(/MM/) ?
       
   264 					'monthNames' : 'monthNamesShort'))));
       
   265 				date.setDate(findMax(this._get(inst, (dateFormat.match(/DD/) ?
       
   266 					'dayNames' : 'dayNamesShort'))) + 20 - date.getDay());
       
   267 			}
       
   268 			inst.input.attr('size', this._formatDate(inst, date).length);
       
   269 		}
       
   270 	},
       
   271 
       
   272 	/* Attach an inline date picker to a div. */
       
   273 	_inlineDatepicker: function(target, inst) {
       
   274 		var divSpan = $(target);
       
   275 		if (divSpan.hasClass(this.markerClassName))
       
   276 			return;
       
   277 		divSpan.addClass(this.markerClassName).append(inst.dpDiv).
       
   278 			bind("setData.datepicker", function(event, key, value){
       
   279 				inst.settings[key] = value;
       
   280 			}).bind("getData.datepicker", function(event, key){
       
   281 				return this._get(inst, key);
       
   282 			});
       
   283 		$.data(target, PROP_NAME, inst);
       
   284 		this._setDate(inst, this._getDefaultDate(inst), true);
       
   285 		this._updateDatepicker(inst);
       
   286 		this._updateAlternate(inst);
       
   287 		//If disabled option is true, disable the datepicker before showing it (see ticket #5665)
       
   288 		if( inst.settings.disabled ) {
       
   289 			this._disableDatepicker( target );
       
   290 		}
       
   291 		// Set display:block in place of inst.dpDiv.show() which won't work on disconnected elements
       
   292 		// http://bugs.jqueryui.com/ticket/7552 - A Datepicker created on a detached div has zero height
       
   293 		inst.dpDiv.css( "display", "block" );
       
   294 	},
       
   295 
       
   296 	/* Pop-up the date picker in a "dialog" box.
       
   297 	   @param  input     element - ignored
       
   298 	   @param  date      string or Date - the initial date to display
       
   299 	   @param  onSelect  function - the function to call when a date is selected
       
   300 	   @param  settings  object - update the dialog date picker instance's settings (anonymous object)
       
   301 	   @param  pos       int[2] - coordinates for the dialog's position within the screen or
       
   302 	                     event - with x/y coordinates or
       
   303 	                     leave empty for default (screen centre)
       
   304 	   @return the manager object */
       
   305 	_dialogDatepicker: function(input, date, onSelect, settings, pos) {
       
   306 		var inst = this._dialogInst; // internal instance
       
   307 		if (!inst) {
       
   308 			this.uuid += 1;
       
   309 			var id = 'dp' + this.uuid;
       
   310 			this._dialogInput = $('<input type="text" id="' + id +
       
   311 				'" style="position: absolute; top: -100px; width: 0px; z-index: -10;"/>');
       
   312 			this._dialogInput.keydown(this._doKeyDown);
       
   313 			$('body').append(this._dialogInput);
       
   314 			inst = this._dialogInst = this._newInst(this._dialogInput, false);
       
   315 			inst.settings = {};
       
   316 			$.data(this._dialogInput[0], PROP_NAME, inst);
       
   317 		}
       
   318 		extendRemove(inst.settings, settings || {});
       
   319 		date = (date && date.constructor == Date ? this._formatDate(inst, date) : date);
       
   320 		this._dialogInput.val(date);
       
   321 
       
   322 		this._pos = (pos ? (pos.length ? pos : [pos.pageX, pos.pageY]) : null);
       
   323 		if (!this._pos) {
       
   324 			var browserWidth = document.documentElement.clientWidth;
       
   325 			var browserHeight = document.documentElement.clientHeight;
       
   326 			var scrollX = document.documentElement.scrollLeft || document.body.scrollLeft;
       
   327 			var scrollY = document.documentElement.scrollTop || document.body.scrollTop;
       
   328 			this._pos = // should use actual width/height below
       
   329 				[(browserWidth / 2) - 100 + scrollX, (browserHeight / 2) - 150 + scrollY];
       
   330 		}
       
   331 
       
   332 		// move input on screen for focus, but hidden behind dialog
       
   333 		this._dialogInput.css('left', (this._pos[0] + 20) + 'px').css('top', this._pos[1] + 'px');
       
   334 		inst.settings.onSelect = onSelect;
       
   335 		this._inDialog = true;
       
   336 		this.dpDiv.addClass(this._dialogClass);
       
   337 		this._showDatepicker(this._dialogInput[0]);
       
   338 		if ($.blockUI)
       
   339 			$.blockUI(this.dpDiv);
       
   340 		$.data(this._dialogInput[0], PROP_NAME, inst);
       
   341 		return this;
       
   342 	},
       
   343 
       
   344 	/* Detach a datepicker from its control.
       
   345 	   @param  target    element - the target input field or division or span */
       
   346 	_destroyDatepicker: function(target) {
       
   347 		var $target = $(target);
       
   348 		var inst = $.data(target, PROP_NAME);
       
   349 		if (!$target.hasClass(this.markerClassName)) {
       
   350 			return;
       
   351 		}
       
   352 		var nodeName = target.nodeName.toLowerCase();
       
   353 		$.removeData(target, PROP_NAME);
       
   354 		if (nodeName == 'input') {
       
   355 			inst.append.remove();
       
   356 			inst.trigger.remove();
       
   357 			$target.removeClass(this.markerClassName).
       
   358 				unbind('focus', this._showDatepicker).
       
   359 				unbind('keydown', this._doKeyDown).
       
   360 				unbind('keypress', this._doKeyPress).
       
   361 				unbind('keyup', this._doKeyUp);
       
   362 		} else if (nodeName == 'div' || nodeName == 'span')
       
   363 			$target.removeClass(this.markerClassName).empty();
       
   364 	},
       
   365 
       
   366 	/* Enable the date picker to a jQuery selection.
       
   367 	   @param  target    element - the target input field or division or span */
       
   368 	_enableDatepicker: function(target) {
       
   369 		var $target = $(target);
       
   370 		var inst = $.data(target, PROP_NAME);
       
   371 		if (!$target.hasClass(this.markerClassName)) {
       
   372 			return;
       
   373 		}
       
   374 		var nodeName = target.nodeName.toLowerCase();
       
   375 		if (nodeName == 'input') {
       
   376 			target.disabled = false;
       
   377 			inst.trigger.filter('button').
       
   378 				each(function() { this.disabled = false; }).end().
       
   379 				filter('img').css({opacity: '1.0', cursor: ''});
       
   380 		}
       
   381 		else if (nodeName == 'div' || nodeName == 'span') {
       
   382 			var inline = $target.children('.' + this._inlineClass);
       
   383 			inline.children().removeClass('ui-state-disabled');
       
   384 			inline.find("select.ui-datepicker-month, select.ui-datepicker-year").
       
   385 				removeAttr("disabled");
       
   386 		}
       
   387 		this._disabledInputs = $.map(this._disabledInputs,
       
   388 			function(value) { return (value == target ? null : value); }); // delete entry
       
   389 	},
       
   390 
       
   391 	/* Disable the date picker to a jQuery selection.
       
   392 	   @param  target    element - the target input field or division or span */
       
   393 	_disableDatepicker: function(target) {
       
   394 		var $target = $(target);
       
   395 		var inst = $.data(target, PROP_NAME);
       
   396 		if (!$target.hasClass(this.markerClassName)) {
       
   397 			return;
       
   398 		}
       
   399 		var nodeName = target.nodeName.toLowerCase();
       
   400 		if (nodeName == 'input') {
       
   401 			target.disabled = true;
       
   402 			inst.trigger.filter('button').
       
   403 				each(function() { this.disabled = true; }).end().
       
   404 				filter('img').css({opacity: '0.5', cursor: 'default'});
       
   405 		}
       
   406 		else if (nodeName == 'div' || nodeName == 'span') {
       
   407 			var inline = $target.children('.' + this._inlineClass);
       
   408 			inline.children().addClass('ui-state-disabled');
       
   409 			inline.find("select.ui-datepicker-month, select.ui-datepicker-year").
       
   410 				attr("disabled", "disabled");
       
   411 		}
       
   412 		this._disabledInputs = $.map(this._disabledInputs,
       
   413 			function(value) { return (value == target ? null : value); }); // delete entry
       
   414 		this._disabledInputs[this._disabledInputs.length] = target;
       
   415 	},
       
   416 
       
   417 	/* Is the first field in a jQuery collection disabled as a datepicker?
       
   418 	   @param  target    element - the target input field or division or span
       
   419 	   @return boolean - true if disabled, false if enabled */
       
   420 	_isDisabledDatepicker: function(target) {
       
   421 		if (!target) {
       
   422 			return false;
       
   423 		}
       
   424 		for (var i = 0; i < this._disabledInputs.length; i++) {
       
   425 			if (this._disabledInputs[i] == target)
       
   426 				return true;
       
   427 		}
       
   428 		return false;
       
   429 	},
       
   430 
       
   431 	/* Retrieve the instance data for the target control.
       
   432 	   @param  target  element - the target input field or division or span
       
   433 	   @return  object - the associated instance data
       
   434 	   @throws  error if a jQuery problem getting data */
       
   435 	_getInst: function(target) {
       
   436 		try {
       
   437 			return $.data(target, PROP_NAME);
       
   438 		}
       
   439 		catch (err) {
       
   440 			throw 'Missing instance data for this datepicker';
       
   441 		}
       
   442 	},
       
   443 
       
   444 	/* Update or retrieve the settings for a date picker attached to an input field or division.
       
   445 	   @param  target  element - the target input field or division or span
       
   446 	   @param  name    object - the new settings to update or
       
   447 	                   string - the name of the setting to change or retrieve,
       
   448 	                   when retrieving also 'all' for all instance settings or
       
   449 	                   'defaults' for all global defaults
       
   450 	   @param  value   any - the new value for the setting
       
   451 	                   (omit if above is an object or to retrieve a value) */
       
   452 	_optionDatepicker: function(target, name, value) {
       
   453 		var inst = this._getInst(target);
       
   454 		if (arguments.length == 2 && typeof name == 'string') {
       
   455 			return (name == 'defaults' ? $.extend({}, $.datepicker._defaults) :
       
   456 				(inst ? (name == 'all' ? $.extend({}, inst.settings) :
       
   457 				this._get(inst, name)) : null));
       
   458 		}
       
   459 		var settings = name || {};
       
   460 		if (typeof name == 'string') {
       
   461 			settings = {};
       
   462 			settings[name] = value;
       
   463 		}
       
   464 		if (inst) {
       
   465 			if (this._curInst == inst) {
       
   466 				this._hideDatepicker();
       
   467 			}
       
   468 			var date = this._getDateDatepicker(target, true);
       
   469 			var minDate = this._getMinMaxDate(inst, 'min');
       
   470 			var maxDate = this._getMinMaxDate(inst, 'max');
       
   471 			extendRemove(inst.settings, settings);
       
   472 			// reformat the old minDate/maxDate values if dateFormat changes and a new minDate/maxDate isn't provided
       
   473 			if (minDate !== null && settings['dateFormat'] !== undefined && settings['minDate'] === undefined)
       
   474 				inst.settings.minDate = this._formatDate(inst, minDate);
       
   475 			if (maxDate !== null && settings['dateFormat'] !== undefined && settings['maxDate'] === undefined)
       
   476 				inst.settings.maxDate = this._formatDate(inst, maxDate);
       
   477 			this._attachments($(target), inst);
       
   478 			this._autoSize(inst);
       
   479 			this._setDate(inst, date);
       
   480 			this._updateAlternate(inst);
       
   481 			this._updateDatepicker(inst);
       
   482 		}
       
   483 	},
       
   484 
       
   485 	// change method deprecated
       
   486 	_changeDatepicker: function(target, name, value) {
       
   487 		this._optionDatepicker(target, name, value);
       
   488 	},
       
   489 
       
   490 	/* Redraw the date picker attached to an input field or division.
       
   491 	   @param  target  element - the target input field or division or span */
       
   492 	_refreshDatepicker: function(target) {
       
   493 		var inst = this._getInst(target);
       
   494 		if (inst) {
       
   495 			this._updateDatepicker(inst);
       
   496 		}
       
   497 	},
       
   498 
       
   499 	/* Set the dates for a jQuery selection.
       
   500 	   @param  target   element - the target input field or division or span
       
   501 	   @param  date     Date - the new date */
       
   502 	_setDateDatepicker: function(target, date) {
       
   503 		var inst = this._getInst(target);
       
   504 		if (inst) {
       
   505 			this._setDate(inst, date);
       
   506 			this._updateDatepicker(inst);
       
   507 			this._updateAlternate(inst);
       
   508 		}
       
   509 	},
       
   510 
       
   511 	/* Get the date(s) for the first entry in a jQuery selection.
       
   512 	   @param  target     element - the target input field or division or span
       
   513 	   @param  noDefault  boolean - true if no default date is to be used
       
   514 	   @return Date - the current date */
       
   515 	_getDateDatepicker: function(target, noDefault) {
       
   516 		var inst = this._getInst(target);
       
   517 		if (inst && !inst.inline)
       
   518 			this._setDateFromField(inst, noDefault);
       
   519 		return (inst ? this._getDate(inst) : null);
       
   520 	},
       
   521 
       
   522 	/* Handle keystrokes. */
       
   523 	_doKeyDown: function(event) {
       
   524 		var inst = $.datepicker._getInst(event.target);
       
   525 		var handled = true;
       
   526 		var isRTL = inst.dpDiv.is('.ui-datepicker-rtl');
       
   527 		inst._keyEvent = true;
       
   528 		if ($.datepicker._datepickerShowing)
       
   529 			switch (event.keyCode) {
       
   530 				case 9: $.datepicker._hideDatepicker();
       
   531 						handled = false;
       
   532 						break; // hide on tab out
       
   533 				case 13: var sel = $('td.' + $.datepicker._dayOverClass + ':not(.' + 
       
   534 									$.datepicker._currentClass + ')', inst.dpDiv);
       
   535 						if (sel[0])
       
   536 							$.datepicker._selectDay(event.target, inst.selectedMonth, inst.selectedYear, sel[0]);
       
   537 							var onSelect = $.datepicker._get(inst, 'onSelect');
       
   538 							if (onSelect) {
       
   539 								var dateStr = $.datepicker._formatDate(inst);
       
   540 
       
   541 								// trigger custom callback
       
   542 								onSelect.apply((inst.input ? inst.input[0] : null), [dateStr, inst]);
       
   543 							}
       
   544 						else
       
   545 							$.datepicker._hideDatepicker();
       
   546 						return false; // don't submit the form
       
   547 						break; // select the value on enter
       
   548 				case 27: $.datepicker._hideDatepicker();
       
   549 						break; // hide on escape
       
   550 				case 33: $.datepicker._adjustDate(event.target, (event.ctrlKey ?
       
   551 							-$.datepicker._get(inst, 'stepBigMonths') :
       
   552 							-$.datepicker._get(inst, 'stepMonths')), 'M');
       
   553 						break; // previous month/year on page up/+ ctrl
       
   554 				case 34: $.datepicker._adjustDate(event.target, (event.ctrlKey ?
       
   555 							+$.datepicker._get(inst, 'stepBigMonths') :
       
   556 							+$.datepicker._get(inst, 'stepMonths')), 'M');
       
   557 						break; // next month/year on page down/+ ctrl
       
   558 				case 35: if (event.ctrlKey || event.metaKey) $.datepicker._clearDate(event.target);
       
   559 						handled = event.ctrlKey || event.metaKey;
       
   560 						break; // clear on ctrl or command +end
       
   561 				case 36: if (event.ctrlKey || event.metaKey) $.datepicker._gotoToday(event.target);
       
   562 						handled = event.ctrlKey || event.metaKey;
       
   563 						break; // current on ctrl or command +home
       
   564 				case 37: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, (isRTL ? +1 : -1), 'D');
       
   565 						handled = event.ctrlKey || event.metaKey;
       
   566 						// -1 day on ctrl or command +left
       
   567 						if (event.originalEvent.altKey) $.datepicker._adjustDate(event.target, (event.ctrlKey ?
       
   568 									-$.datepicker._get(inst, 'stepBigMonths') :
       
   569 									-$.datepicker._get(inst, 'stepMonths')), 'M');
       
   570 						// next month/year on alt +left on Mac
       
   571 						break;
       
   572 				case 38: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, -7, 'D');
       
   573 						handled = event.ctrlKey || event.metaKey;
       
   574 						break; // -1 week on ctrl or command +up
       
   575 				case 39: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, (isRTL ? -1 : +1), 'D');
       
   576 						handled = event.ctrlKey || event.metaKey;
       
   577 						// +1 day on ctrl or command +right
       
   578 						if (event.originalEvent.altKey) $.datepicker._adjustDate(event.target, (event.ctrlKey ?
       
   579 									+$.datepicker._get(inst, 'stepBigMonths') :
       
   580 									+$.datepicker._get(inst, 'stepMonths')), 'M');
       
   581 						// next month/year on alt +right
       
   582 						break;
       
   583 				case 40: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, +7, 'D');
       
   584 						handled = event.ctrlKey || event.metaKey;
       
   585 						break; // +1 week on ctrl or command +down
       
   586 				default: handled = false;
       
   587 			}
       
   588 		else if (event.keyCode == 36 && event.ctrlKey) // display the date picker on ctrl+home
       
   589 			$.datepicker._showDatepicker(this);
       
   590 		else {
       
   591 			handled = false;
       
   592 		}
       
   593 		if (handled) {
       
   594 			event.preventDefault();
       
   595 			event.stopPropagation();
       
   596 		}
       
   597 	},
       
   598 
       
   599 	/* Filter entered characters - based on date format. */
       
   600 	_doKeyPress: function(event) {
       
   601 		var inst = $.datepicker._getInst(event.target);
       
   602 		if ($.datepicker._get(inst, 'constrainInput')) {
       
   603 			var chars = $.datepicker._possibleChars($.datepicker._get(inst, 'dateFormat'));
       
   604 			var chr = String.fromCharCode(event.charCode == undefined ? event.keyCode : event.charCode);
       
   605 			return event.ctrlKey || event.metaKey || (chr < ' ' || !chars || chars.indexOf(chr) > -1);
       
   606 		}
       
   607 	},
       
   608 
       
   609 	/* Synchronise manual entry and field/alternate field. */
       
   610 	_doKeyUp: function(event) {
       
   611 		var inst = $.datepicker._getInst(event.target);
       
   612 		if (inst.input.val() != inst.lastVal) {
       
   613 			try {
       
   614 				var date = $.datepicker.parseDate($.datepicker._get(inst, 'dateFormat'),
       
   615 					(inst.input ? inst.input.val() : null),
       
   616 					$.datepicker._getFormatConfig(inst));
       
   617 				if (date) { // only if valid
       
   618 					$.datepicker._setDateFromField(inst);
       
   619 					$.datepicker._updateAlternate(inst);
       
   620 					$.datepicker._updateDatepicker(inst);
       
   621 				}
       
   622 			}
       
   623 			catch (event) {
       
   624 				$.datepicker.log(event);
       
   625 			}
       
   626 		}
       
   627 		return true;
       
   628 	},
       
   629 
       
   630 	/* Pop-up the date picker for a given input field.
       
   631        If false returned from beforeShow event handler do not show. 
       
   632 	   @param  input  element - the input field attached to the date picker or
       
   633 	                  event - if triggered by focus */
       
   634 	_showDatepicker: function(input) {
       
   635 		input = input.target || input;
       
   636 		if (input.nodeName.toLowerCase() != 'input') // find from button/image trigger
       
   637 			input = $('input', input.parentNode)[0];
       
   638 		if ($.datepicker._isDisabledDatepicker(input) || $.datepicker._lastInput == input) // already here
       
   639 			return;
       
   640 		var inst = $.datepicker._getInst(input);
       
   641 		if ($.datepicker._curInst && $.datepicker._curInst != inst) {
       
   642 			$.datepicker._curInst.dpDiv.stop(true, true);
       
   643 			if ( inst && $.datepicker._datepickerShowing ) {
       
   644 				$.datepicker._hideDatepicker( $.datepicker._curInst.input[0] );
       
   645 			}
       
   646 		}
       
   647 		var beforeShow = $.datepicker._get(inst, 'beforeShow');
       
   648 		var beforeShowSettings = beforeShow ? beforeShow.apply(input, [input, inst]) : {};
       
   649 		if(beforeShowSettings === false){
       
   650             //false
       
   651 			return;
       
   652 		}
       
   653 		extendRemove(inst.settings, beforeShowSettings);
       
   654 		inst.lastVal = null;
       
   655 		$.datepicker._lastInput = input;
       
   656 		$.datepicker._setDateFromField(inst);
       
   657 		if ($.datepicker._inDialog) // hide cursor
       
   658 			input.value = '';
       
   659 		if (!$.datepicker._pos) { // position below input
       
   660 			$.datepicker._pos = $.datepicker._findPos(input);
       
   661 			$.datepicker._pos[1] += input.offsetHeight; // add the height
       
   662 		}
       
   663 		var isFixed = false;
       
   664 		$(input).parents().each(function() {
       
   665 			isFixed |= $(this).css('position') == 'fixed';
       
   666 			return !isFixed;
       
   667 		});
       
   668 		if (isFixed && $.browser.opera) { // correction for Opera when fixed and scrolled
       
   669 			$.datepicker._pos[0] -= document.documentElement.scrollLeft;
       
   670 			$.datepicker._pos[1] -= document.documentElement.scrollTop;
       
   671 		}
       
   672 		var offset = {left: $.datepicker._pos[0], top: $.datepicker._pos[1]};
       
   673 		$.datepicker._pos = null;
       
   674 		//to avoid flashes on Firefox
       
   675 		inst.dpDiv.empty();
       
   676 		// determine sizing offscreen
       
   677 		inst.dpDiv.css({position: 'absolute', display: 'block', top: '-1000px'});
       
   678 		$.datepicker._updateDatepicker(inst);
       
   679 		// fix width for dynamic number of date pickers
       
   680 		// and adjust position before showing
       
   681 		offset = $.datepicker._checkOffset(inst, offset, isFixed);
       
   682 		inst.dpDiv.css({position: ($.datepicker._inDialog && $.blockUI ?
       
   683 			'static' : (isFixed ? 'fixed' : 'absolute')), display: 'none',
       
   684 			left: offset.left + 'px', top: offset.top + 'px'});
       
   685 		if (!inst.inline) {
       
   686 			var showAnim = $.datepicker._get(inst, 'showAnim');
       
   687 			var duration = $.datepicker._get(inst, 'duration');
       
   688 			var postProcess = function() {
       
   689 				var cover = inst.dpDiv.find('iframe.ui-datepicker-cover'); // IE6- only
       
   690 				if( !! cover.length ){
       
   691 					var borders = $.datepicker._getBorders(inst.dpDiv);
       
   692 					cover.css({left: -borders[0], top: -borders[1],
       
   693 						width: inst.dpDiv.outerWidth(), height: inst.dpDiv.outerHeight()});
       
   694 				}
       
   695 			};
       
   696 			inst.dpDiv.zIndex($(input).zIndex()+1);
       
   697 			$.datepicker._datepickerShowing = true;
       
   698 			if ($.effects && $.effects[showAnim])
       
   699 				inst.dpDiv.show(showAnim, $.datepicker._get(inst, 'showOptions'), duration, postProcess);
       
   700 			else
       
   701 				inst.dpDiv[showAnim || 'show']((showAnim ? duration : null), postProcess);
       
   702 			if (!showAnim || !duration)
       
   703 				postProcess();
       
   704 			if (inst.input.is(':visible') && !inst.input.is(':disabled'))
       
   705 				inst.input.focus();
       
   706 			$.datepicker._curInst = inst;
       
   707 		}
       
   708 	},
       
   709 
       
   710 	/* Generate the date picker content. */
       
   711 	_updateDatepicker: function(inst) {
       
   712 		var self = this;
       
   713 		self.maxRows = 4; //Reset the max number of rows being displayed (see #7043)
       
   714 		var borders = $.datepicker._getBorders(inst.dpDiv);
       
   715 		instActive = inst; // for delegate hover events
       
   716 		inst.dpDiv.empty().append(this._generateHTML(inst));
       
   717 		var cover = inst.dpDiv.find('iframe.ui-datepicker-cover'); // IE6- only
       
   718 		if( !!cover.length ){ //avoid call to outerXXXX() when not in IE6
       
   719 			cover.css({left: -borders[0], top: -borders[1], width: inst.dpDiv.outerWidth(), height: inst.dpDiv.outerHeight()})
       
   720 		}
       
   721 		inst.dpDiv.find('.' + this._dayOverClass + ' a').mouseover();
       
   722 		var numMonths = this._getNumberOfMonths(inst);
       
   723 		var cols = numMonths[1];
       
   724 		var width = 17;
       
   725 		inst.dpDiv.removeClass('ui-datepicker-multi-2 ui-datepicker-multi-3 ui-datepicker-multi-4').width('');
       
   726 		if (cols > 1)
       
   727 			inst.dpDiv.addClass('ui-datepicker-multi-' + cols).css('width', (width * cols) + 'em');
       
   728 		inst.dpDiv[(numMonths[0] != 1 || numMonths[1] != 1 ? 'add' : 'remove') +
       
   729 			'Class']('ui-datepicker-multi');
       
   730 		inst.dpDiv[(this._get(inst, 'isRTL') ? 'add' : 'remove') +
       
   731 			'Class']('ui-datepicker-rtl');
       
   732 		if (inst == $.datepicker._curInst && $.datepicker._datepickerShowing && inst.input &&
       
   733 				// #6694 - don't focus the input if it's already focused
       
   734 				// this breaks the change event in IE
       
   735 				inst.input.is(':visible') && !inst.input.is(':disabled') && inst.input[0] != document.activeElement)
       
   736 			inst.input.focus();
       
   737 		// deffered render of the years select (to avoid flashes on Firefox) 
       
   738 		if( inst.yearshtml ){
       
   739 			var origyearshtml = inst.yearshtml;
       
   740 			setTimeout(function(){
       
   741 				//assure that inst.yearshtml didn't change.
       
   742 				if( origyearshtml === inst.yearshtml && inst.yearshtml ){
       
   743 					inst.dpDiv.find('select.ui-datepicker-year:first').replaceWith(inst.yearshtml);
       
   744 				}
       
   745 				origyearshtml = inst.yearshtml = null;
       
   746 			}, 0);
       
   747 		}
       
   748 	},
       
   749 
       
   750 	/* Retrieve the size of left and top borders for an element.
       
   751 	   @param  elem  (jQuery object) the element of interest
       
   752 	   @return  (number[2]) the left and top borders */
       
   753 	_getBorders: function(elem) {
       
   754 		var convert = function(value) {
       
   755 			return {thin: 1, medium: 2, thick: 3}[value] || value;
       
   756 		};
       
   757 		return [parseFloat(convert(elem.css('border-left-width'))),
       
   758 			parseFloat(convert(elem.css('border-top-width')))];
       
   759 	},
       
   760 
       
   761 	/* Check positioning to remain on screen. */
       
   762 	_checkOffset: function(inst, offset, isFixed) {
       
   763 		var dpWidth = inst.dpDiv.outerWidth();
       
   764 		var dpHeight = inst.dpDiv.outerHeight();
       
   765 		var inputWidth = inst.input ? inst.input.outerWidth() : 0;
       
   766 		var inputHeight = inst.input ? inst.input.outerHeight() : 0;
       
   767 		var viewWidth = document.documentElement.clientWidth + $(document).scrollLeft();
       
   768 		var viewHeight = document.documentElement.clientHeight + $(document).scrollTop();
       
   769 
       
   770 		offset.left -= (this._get(inst, 'isRTL') ? (dpWidth - inputWidth) : 0);
       
   771 		offset.left -= (isFixed && offset.left == inst.input.offset().left) ? $(document).scrollLeft() : 0;
       
   772 		offset.top -= (isFixed && offset.top == (inst.input.offset().top + inputHeight)) ? $(document).scrollTop() : 0;
       
   773 
       
   774 		// now check if datepicker is showing outside window viewport - move to a better place if so.
       
   775 		offset.left -= Math.min(offset.left, (offset.left + dpWidth > viewWidth && viewWidth > dpWidth) ?
       
   776 			Math.abs(offset.left + dpWidth - viewWidth) : 0);
       
   777 		offset.top -= Math.min(offset.top, (offset.top + dpHeight > viewHeight && viewHeight > dpHeight) ?
       
   778 			Math.abs(dpHeight + inputHeight) : 0);
       
   779 
       
   780 		return offset;
       
   781 	},
       
   782 
       
   783 	/* Find an object's position on the screen. */
       
   784 	_findPos: function(obj) {
       
   785 		var inst = this._getInst(obj);
       
   786 		var isRTL = this._get(inst, 'isRTL');
       
   787         while (obj && (obj.type == 'hidden' || obj.nodeType != 1 || $.expr.filters.hidden(obj))) {
       
   788             obj = obj[isRTL ? 'previousSibling' : 'nextSibling'];
       
   789         }
       
   790         var position = $(obj).offset();
       
   791 	    return [position.left, position.top];
       
   792 	},
       
   793 
       
   794 	/* Hide the date picker from view.
       
   795 	   @param  input  element - the input field attached to the date picker */
       
   796 	_hideDatepicker: function(input) {
       
   797 		var inst = this._curInst;
       
   798 		if (!inst || (input && inst != $.data(input, PROP_NAME)))
       
   799 			return;
       
   800 		if (this._datepickerShowing) {
       
   801 			var showAnim = this._get(inst, 'showAnim');
       
   802 			var duration = this._get(inst, 'duration');
       
   803 			var self = this;
       
   804 			var postProcess = function() {
       
   805 				$.datepicker._tidyDialog(inst);
       
   806 				self._curInst = null;
       
   807 			};
       
   808 			if ($.effects && $.effects[showAnim])
       
   809 				inst.dpDiv.hide(showAnim, $.datepicker._get(inst, 'showOptions'), duration, postProcess);
       
   810 			else
       
   811 				inst.dpDiv[(showAnim == 'slideDown' ? 'slideUp' :
       
   812 					(showAnim == 'fadeIn' ? 'fadeOut' : 'hide'))]((showAnim ? duration : null), postProcess);
       
   813 			if (!showAnim)
       
   814 				postProcess();
       
   815 			this._datepickerShowing = false;
       
   816 			var onClose = this._get(inst, 'onClose');
       
   817 			if (onClose)
       
   818 				onClose.apply((inst.input ? inst.input[0] : null),
       
   819 					[(inst.input ? inst.input.val() : ''), inst]);
       
   820 			this._lastInput = null;
       
   821 			if (this._inDialog) {
       
   822 				this._dialogInput.css({ position: 'absolute', left: '0', top: '-100px' });
       
   823 				if ($.blockUI) {
       
   824 					$.unblockUI();
       
   825 					$('body').append(this.dpDiv);
       
   826 				}
       
   827 			}
       
   828 			this._inDialog = false;
       
   829 		}
       
   830 	},
       
   831 
       
   832 	/* Tidy up after a dialog display. */
       
   833 	_tidyDialog: function(inst) {
       
   834 		inst.dpDiv.removeClass(this._dialogClass).unbind('.ui-datepicker-calendar');
       
   835 	},
       
   836 
       
   837 	/* Close date picker if clicked elsewhere. */
       
   838 	_checkExternalClick: function(event) {
       
   839 		if (!$.datepicker._curInst)
       
   840 			return;
       
   841 
       
   842 		var $target = $(event.target),
       
   843 			inst = $.datepicker._getInst($target[0]);
       
   844 
       
   845 		if ( ( ( $target[0].id != $.datepicker._mainDivId &&
       
   846 				$target.parents('#' + $.datepicker._mainDivId).length == 0 &&
       
   847 				!$target.hasClass($.datepicker.markerClassName) &&
       
   848 				!$target.closest("." + $.datepicker._triggerClass).length &&
       
   849 				$.datepicker._datepickerShowing && !($.datepicker._inDialog && $.blockUI) ) ) ||
       
   850 			( $target.hasClass($.datepicker.markerClassName) && $.datepicker._curInst != inst ) )
       
   851 			$.datepicker._hideDatepicker();
       
   852 	},
       
   853 
       
   854 	/* Adjust one of the date sub-fields. */
       
   855 	_adjustDate: function(id, offset, period) {
       
   856 		var target = $(id);
       
   857 		var inst = this._getInst(target[0]);
       
   858 		if (this._isDisabledDatepicker(target[0])) {
       
   859 			return;
       
   860 		}
       
   861 		this._adjustInstDate(inst, offset +
       
   862 			(period == 'M' ? this._get(inst, 'showCurrentAtPos') : 0), // undo positioning
       
   863 			period);
       
   864 		this._updateDatepicker(inst);
       
   865 	},
       
   866 
       
   867 	/* Action for current link. */
       
   868 	_gotoToday: function(id) {
       
   869 		var target = $(id);
       
   870 		var inst = this._getInst(target[0]);
       
   871 		if (this._get(inst, 'gotoCurrent') && inst.currentDay) {
       
   872 			inst.selectedDay = inst.currentDay;
       
   873 			inst.drawMonth = inst.selectedMonth = inst.currentMonth;
       
   874 			inst.drawYear = inst.selectedYear = inst.currentYear;
       
   875 		}
       
   876 		else {
       
   877 			var date = new Date();
       
   878 			inst.selectedDay = date.getDate();
       
   879 			inst.drawMonth = inst.selectedMonth = date.getMonth();
       
   880 			inst.drawYear = inst.selectedYear = date.getFullYear();
       
   881 		}
       
   882 		this._notifyChange(inst);
       
   883 		this._adjustDate(target);
       
   884 	},
       
   885 
       
   886 	/* Action for selecting a new month/year. */
       
   887 	_selectMonthYear: function(id, select, period) {
       
   888 		var target = $(id);
       
   889 		var inst = this._getInst(target[0]);
       
   890 		inst['selected' + (period == 'M' ? 'Month' : 'Year')] =
       
   891 		inst['draw' + (period == 'M' ? 'Month' : 'Year')] =
       
   892 			parseInt(select.options[select.selectedIndex].value,10);
       
   893 		this._notifyChange(inst);
       
   894 		this._adjustDate(target);
       
   895 	},
       
   896 
       
   897 	/* Action for selecting a day. */
       
   898 	_selectDay: function(id, month, year, td) {
       
   899 		var target = $(id);
       
   900 		if ($(td).hasClass(this._unselectableClass) || this._isDisabledDatepicker(target[0])) {
       
   901 			return;
       
   902 		}
       
   903 		var inst = this._getInst(target[0]);
       
   904 		inst.selectedDay = inst.currentDay = $('a', td).html();
       
   905 		inst.selectedMonth = inst.currentMonth = month;
       
   906 		inst.selectedYear = inst.currentYear = year;
       
   907 		this._selectDate(id, this._formatDate(inst,
       
   908 			inst.currentDay, inst.currentMonth, inst.currentYear));
       
   909 	},
       
   910 
       
   911 	/* Erase the input field and hide the date picker. */
       
   912 	_clearDate: function(id) {
       
   913 		var target = $(id);
       
   914 		var inst = this._getInst(target[0]);
       
   915 		this._selectDate(target, '');
       
   916 	},
       
   917 
       
   918 	/* Update the input field with the selected date. */
       
   919 	_selectDate: function(id, dateStr) {
       
   920 		var target = $(id);
       
   921 		var inst = this._getInst(target[0]);
       
   922 		dateStr = (dateStr != null ? dateStr : this._formatDate(inst));
       
   923 		if (inst.input)
       
   924 			inst.input.val(dateStr);
       
   925 		this._updateAlternate(inst);
       
   926 		var onSelect = this._get(inst, 'onSelect');
       
   927 		if (onSelect)
       
   928 			onSelect.apply((inst.input ? inst.input[0] : null), [dateStr, inst]);  // trigger custom callback
       
   929 		else if (inst.input)
       
   930 			inst.input.trigger('change'); // fire the change event
       
   931 		if (inst.inline)
       
   932 			this._updateDatepicker(inst);
       
   933 		else {
       
   934 			this._hideDatepicker();
       
   935 			this._lastInput = inst.input[0];
       
   936 			if (typeof(inst.input[0]) != 'object')
       
   937 				inst.input.focus(); // restore focus
       
   938 			this._lastInput = null;
       
   939 		}
       
   940 	},
       
   941 
       
   942 	/* Update any alternate field to synchronise with the main field. */
       
   943 	_updateAlternate: function(inst) {
       
   944 		var altField = this._get(inst, 'altField');
       
   945 		if (altField) { // update alternate field too
       
   946 			var altFormat = this._get(inst, 'altFormat') || this._get(inst, 'dateFormat');
       
   947 			var date = this._getDate(inst);
       
   948 			var dateStr = this.formatDate(altFormat, date, this._getFormatConfig(inst));
       
   949 			$(altField).each(function() { $(this).val(dateStr); });
       
   950 		}
       
   951 	},
       
   952 
       
   953 	/* Set as beforeShowDay function to prevent selection of weekends.
       
   954 	   @param  date  Date - the date to customise
       
   955 	   @return [boolean, string] - is this date selectable?, what is its CSS class? */
       
   956 	noWeekends: function(date) {
       
   957 		var day = date.getDay();
       
   958 		return [(day > 0 && day < 6), ''];
       
   959 	},
       
   960 
       
   961 	/* Set as calculateWeek to determine the week of the year based on the ISO 8601 definition.
       
   962 	   @param  date  Date - the date to get the week for
       
   963 	   @return  number - the number of the week within the year that contains this date */
       
   964 	iso8601Week: function(date) {
       
   965 		var checkDate = new Date(date.getTime());
       
   966 		// Find Thursday of this week starting on Monday
       
   967 		checkDate.setDate(checkDate.getDate() + 4 - (checkDate.getDay() || 7));
       
   968 		var time = checkDate.getTime();
       
   969 		checkDate.setMonth(0); // Compare with Jan 1
       
   970 		checkDate.setDate(1);
       
   971 		return Math.floor(Math.round((time - checkDate) / 86400000) / 7) + 1;
       
   972 	},
       
   973 
       
   974 	/* Parse a string value into a date object.
       
   975 	   See formatDate below for the possible formats.
       
   976 
       
   977 	   @param  format    string - the expected format of the date
       
   978 	   @param  value     string - the date in the above format
       
   979 	   @param  settings  Object - attributes include:
       
   980 	                     shortYearCutoff  number - the cutoff year for determining the century (optional)
       
   981 	                     dayNamesShort    string[7] - abbreviated names of the days from Sunday (optional)
       
   982 	                     dayNames         string[7] - names of the days from Sunday (optional)
       
   983 	                     monthNamesShort  string[12] - abbreviated names of the months (optional)
       
   984 	                     monthNames       string[12] - names of the months (optional)
       
   985 	   @return  Date - the extracted date value or null if value is blank */
       
   986 	parseDate: function (format, value, settings) {
       
   987 		if (format == null || value == null)
       
   988 			throw 'Invalid arguments';
       
   989 		value = (typeof value == 'object' ? value.toString() : value + '');
       
   990 		if (value == '')
       
   991 			return null;
       
   992 		var shortYearCutoff = (settings ? settings.shortYearCutoff : null) || this._defaults.shortYearCutoff;
       
   993 		shortYearCutoff = (typeof shortYearCutoff != 'string' ? shortYearCutoff :
       
   994 				new Date().getFullYear() % 100 + parseInt(shortYearCutoff, 10));
       
   995 		var dayNamesShort = (settings ? settings.dayNamesShort : null) || this._defaults.dayNamesShort;
       
   996 		var dayNames = (settings ? settings.dayNames : null) || this._defaults.dayNames;
       
   997 		var monthNamesShort = (settings ? settings.monthNamesShort : null) || this._defaults.monthNamesShort;
       
   998 		var monthNames = (settings ? settings.monthNames : null) || this._defaults.monthNames;
       
   999 		var year = -1;
       
  1000 		var month = -1;
       
  1001 		var day = -1;
       
  1002 		var doy = -1;
       
  1003 		var literal = false;
       
  1004 		// Check whether a format character is doubled
       
  1005 		var lookAhead = function(match) {
       
  1006 			var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) == match);
       
  1007 			if (matches)
       
  1008 				iFormat++;
       
  1009 			return matches;
       
  1010 		};
       
  1011 		// Extract a number from the string value
       
  1012 		var getNumber = function(match) {
       
  1013 			var isDoubled = lookAhead(match);
       
  1014 			var size = (match == '@' ? 14 : (match == '!' ? 20 :
       
  1015 				(match == 'y' && isDoubled ? 4 : (match == 'o' ? 3 : 2))));
       
  1016 			var digits = new RegExp('^\\d{1,' + size + '}');
       
  1017 			var num = value.substring(iValue).match(digits);
       
  1018 			if (!num)
       
  1019 				throw 'Missing number at position ' + iValue;
       
  1020 			iValue += num[0].length;
       
  1021 			return parseInt(num[0], 10);
       
  1022 		};
       
  1023 		// Extract a name from the string value and convert to an index
       
  1024 		var getName = function(match, shortNames, longNames) {
       
  1025 			var names = $.map(lookAhead(match) ? longNames : shortNames, function (v, k) {
       
  1026 				return [ [k, v] ];
       
  1027 			}).sort(function (a, b) {
       
  1028 				return -(a[1].length - b[1].length);
       
  1029 			});
       
  1030 			var index = -1;
       
  1031 			$.each(names, function (i, pair) {
       
  1032 				var name = pair[1];
       
  1033 				if (value.substr(iValue, name.length).toLowerCase() == name.toLowerCase()) {
       
  1034 					index = pair[0];
       
  1035 					iValue += name.length;
       
  1036 					return false;
       
  1037 				}
       
  1038 			});
       
  1039 			if (index != -1)
       
  1040 				return index + 1;
       
  1041 			else
       
  1042 				throw 'Unknown name at position ' + iValue;
       
  1043 		};
       
  1044 		// Confirm that a literal character matches the string value
       
  1045 		var checkLiteral = function() {
       
  1046 			if (value.charAt(iValue) != format.charAt(iFormat))
       
  1047 				throw 'Unexpected literal at position ' + iValue;
       
  1048 			iValue++;
       
  1049 		};
       
  1050 		var iValue = 0;
       
  1051 		for (var iFormat = 0; iFormat < format.length; iFormat++) {
       
  1052 			if (literal)
       
  1053 				if (format.charAt(iFormat) == "'" && !lookAhead("'"))
       
  1054 					literal = false;
       
  1055 				else
       
  1056 					checkLiteral();
       
  1057 			else
       
  1058 				switch (format.charAt(iFormat)) {
       
  1059 					case 'd':
       
  1060 						day = getNumber('d');
       
  1061 						break;
       
  1062 					case 'D':
       
  1063 						getName('D', dayNamesShort, dayNames);
       
  1064 						break;
       
  1065 					case 'o':
       
  1066 						doy = getNumber('o');
       
  1067 						break;
       
  1068 					case 'm':
       
  1069 						month = getNumber('m');
       
  1070 						break;
       
  1071 					case 'M':
       
  1072 						month = getName('M', monthNamesShort, monthNames);
       
  1073 						break;
       
  1074 					case 'y':
       
  1075 						year = getNumber('y');
       
  1076 						break;
       
  1077 					case '@':
       
  1078 						var date = new Date(getNumber('@'));
       
  1079 						year = date.getFullYear();
       
  1080 						month = date.getMonth() + 1;
       
  1081 						day = date.getDate();
       
  1082 						break;
       
  1083 					case '!':
       
  1084 						var date = new Date((getNumber('!') - this._ticksTo1970) / 10000);
       
  1085 						year = date.getFullYear();
       
  1086 						month = date.getMonth() + 1;
       
  1087 						day = date.getDate();
       
  1088 						break;
       
  1089 					case "'":
       
  1090 						if (lookAhead("'"))
       
  1091 							checkLiteral();
       
  1092 						else
       
  1093 							literal = true;
       
  1094 						break;
       
  1095 					default:
       
  1096 						checkLiteral();
       
  1097 				}
       
  1098 		}
       
  1099 		if (iValue < value.length){
       
  1100 			throw "Extra/unparsed characters found in date: " + value.substring(iValue);
       
  1101 		}
       
  1102 		if (year == -1)
       
  1103 			year = new Date().getFullYear();
       
  1104 		else if (year < 100)
       
  1105 			year += new Date().getFullYear() - new Date().getFullYear() % 100 +
       
  1106 				(year <= shortYearCutoff ? 0 : -100);
       
  1107 		if (doy > -1) {
       
  1108 			month = 1;
       
  1109 			day = doy;
       
  1110 			do {
       
  1111 				var dim = this._getDaysInMonth(year, month - 1);
       
  1112 				if (day <= dim)
       
  1113 					break;
       
  1114 				month++;
       
  1115 				day -= dim;
       
  1116 			} while (true);
       
  1117 		}
       
  1118 		var date = this._daylightSavingAdjust(new Date(year, month - 1, day));
       
  1119 		if (date.getFullYear() != year || date.getMonth() + 1 != month || date.getDate() != day)
       
  1120 			throw 'Invalid date'; // E.g. 31/02/00
       
  1121 		return date;
       
  1122 	},
       
  1123 
       
  1124 	/* Standard date formats. */
       
  1125 	ATOM: 'yy-mm-dd', // RFC 3339 (ISO 8601)
       
  1126 	COOKIE: 'D, dd M yy',
       
  1127 	ISO_8601: 'yy-mm-dd',
       
  1128 	RFC_822: 'D, d M y',
       
  1129 	RFC_850: 'DD, dd-M-y',
       
  1130 	RFC_1036: 'D, d M y',
       
  1131 	RFC_1123: 'D, d M yy',
       
  1132 	RFC_2822: 'D, d M yy',
       
  1133 	RSS: 'D, d M y', // RFC 822
       
  1134 	TICKS: '!',
       
  1135 	TIMESTAMP: '@',
       
  1136 	W3C: 'yy-mm-dd', // ISO 8601
       
  1137 
       
  1138 	_ticksTo1970: (((1970 - 1) * 365 + Math.floor(1970 / 4) - Math.floor(1970 / 100) +
       
  1139 		Math.floor(1970 / 400)) * 24 * 60 * 60 * 10000000),
       
  1140 
       
  1141 	/* Format a date object into a string value.
       
  1142 	   The format can be combinations of the following:
       
  1143 	   d  - day of month (no leading zero)
       
  1144 	   dd - day of month (two digit)
       
  1145 	   o  - day of year (no leading zeros)
       
  1146 	   oo - day of year (three digit)
       
  1147 	   D  - day name short
       
  1148 	   DD - day name long
       
  1149 	   m  - month of year (no leading zero)
       
  1150 	   mm - month of year (two digit)
       
  1151 	   M  - month name short
       
  1152 	   MM - month name long
       
  1153 	   y  - year (two digit)
       
  1154 	   yy - year (four digit)
       
  1155 	   @ - Unix timestamp (ms since 01/01/1970)
       
  1156 	   ! - Windows ticks (100ns since 01/01/0001)
       
  1157 	   '...' - literal text
       
  1158 	   '' - single quote
       
  1159 
       
  1160 	   @param  format    string - the desired format of the date
       
  1161 	   @param  date      Date - the date value to format
       
  1162 	   @param  settings  Object - attributes include:
       
  1163 	                     dayNamesShort    string[7] - abbreviated names of the days from Sunday (optional)
       
  1164 	                     dayNames         string[7] - names of the days from Sunday (optional)
       
  1165 	                     monthNamesShort  string[12] - abbreviated names of the months (optional)
       
  1166 	                     monthNames       string[12] - names of the months (optional)
       
  1167 	   @return  string - the date in the above format */
       
  1168 	formatDate: function (format, date, settings) {
       
  1169 		if (!date)
       
  1170 			return '';
       
  1171 		var dayNamesShort = (settings ? settings.dayNamesShort : null) || this._defaults.dayNamesShort;
       
  1172 		var dayNames = (settings ? settings.dayNames : null) || this._defaults.dayNames;
       
  1173 		var monthNamesShort = (settings ? settings.monthNamesShort : null) || this._defaults.monthNamesShort;
       
  1174 		var monthNames = (settings ? settings.monthNames : null) || this._defaults.monthNames;
       
  1175 		// Check whether a format character is doubled
       
  1176 		var lookAhead = function(match) {
       
  1177 			var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) == match);
       
  1178 			if (matches)
       
  1179 				iFormat++;
       
  1180 			return matches;
       
  1181 		};
       
  1182 		// Format a number, with leading zero if necessary
       
  1183 		var formatNumber = function(match, value, len) {
       
  1184 			var num = '' + value;
       
  1185 			if (lookAhead(match))
       
  1186 				while (num.length < len)
       
  1187 					num = '0' + num;
       
  1188 			return num;
       
  1189 		};
       
  1190 		// Format a name, short or long as requested
       
  1191 		var formatName = function(match, value, shortNames, longNames) {
       
  1192 			return (lookAhead(match) ? longNames[value] : shortNames[value]);
       
  1193 		};
       
  1194 		var output = '';
       
  1195 		var literal = false;
       
  1196 		if (date)
       
  1197 			for (var iFormat = 0; iFormat < format.length; iFormat++) {
       
  1198 				if (literal)
       
  1199 					if (format.charAt(iFormat) == "'" && !lookAhead("'"))
       
  1200 						literal = false;
       
  1201 					else
       
  1202 						output += format.charAt(iFormat);
       
  1203 				else
       
  1204 					switch (format.charAt(iFormat)) {
       
  1205 						case 'd':
       
  1206 							output += formatNumber('d', date.getDate(), 2);
       
  1207 							break;
       
  1208 						case 'D':
       
  1209 							output += formatName('D', date.getDay(), dayNamesShort, dayNames);
       
  1210 							break;
       
  1211 						case 'o':
       
  1212 							output += formatNumber('o',
       
  1213 								Math.round((new Date(date.getFullYear(), date.getMonth(), date.getDate()).getTime() - new Date(date.getFullYear(), 0, 0).getTime()) / 86400000), 3);
       
  1214 							break;
       
  1215 						case 'm':
       
  1216 							output += formatNumber('m', date.getMonth() + 1, 2);
       
  1217 							break;
       
  1218 						case 'M':
       
  1219 							output += formatName('M', date.getMonth(), monthNamesShort, monthNames);
       
  1220 							break;
       
  1221 						case 'y':
       
  1222 							output += (lookAhead('y') ? date.getFullYear() :
       
  1223 								(date.getYear() % 100 < 10 ? '0' : '') + date.getYear() % 100);
       
  1224 							break;
       
  1225 						case '@':
       
  1226 							output += date.getTime();
       
  1227 							break;
       
  1228 						case '!':
       
  1229 							output += date.getTime() * 10000 + this._ticksTo1970;
       
  1230 							break;
       
  1231 						case "'":
       
  1232 							if (lookAhead("'"))
       
  1233 								output += "'";
       
  1234 							else
       
  1235 								literal = true;
       
  1236 							break;
       
  1237 						default:
       
  1238 							output += format.charAt(iFormat);
       
  1239 					}
       
  1240 			}
       
  1241 		return output;
       
  1242 	},
       
  1243 
       
  1244 	/* Extract all possible characters from the date format. */
       
  1245 	_possibleChars: function (format) {
       
  1246 		var chars = '';
       
  1247 		var literal = false;
       
  1248 		// Check whether a format character is doubled
       
  1249 		var lookAhead = function(match) {
       
  1250 			var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) == match);
       
  1251 			if (matches)
       
  1252 				iFormat++;
       
  1253 			return matches;
       
  1254 		};
       
  1255 		for (var iFormat = 0; iFormat < format.length; iFormat++)
       
  1256 			if (literal)
       
  1257 				if (format.charAt(iFormat) == "'" && !lookAhead("'"))
       
  1258 					literal = false;
       
  1259 				else
       
  1260 					chars += format.charAt(iFormat);
       
  1261 			else
       
  1262 				switch (format.charAt(iFormat)) {
       
  1263 					case 'd': case 'm': case 'y': case '@':
       
  1264 						chars += '0123456789';
       
  1265 						break;
       
  1266 					case 'D': case 'M':
       
  1267 						return null; // Accept anything
       
  1268 					case "'":
       
  1269 						if (lookAhead("'"))
       
  1270 							chars += "'";
       
  1271 						else
       
  1272 							literal = true;
       
  1273 						break;
       
  1274 					default:
       
  1275 						chars += format.charAt(iFormat);
       
  1276 				}
       
  1277 		return chars;
       
  1278 	},
       
  1279 
       
  1280 	/* Get a setting value, defaulting if necessary. */
       
  1281 	_get: function(inst, name) {
       
  1282 		return inst.settings[name] !== undefined ?
       
  1283 			inst.settings[name] : this._defaults[name];
       
  1284 	},
       
  1285 
       
  1286 	/* Parse existing date and initialise date picker. */
       
  1287 	_setDateFromField: function(inst, noDefault) {
       
  1288 		if (inst.input.val() == inst.lastVal) {
       
  1289 			return;
       
  1290 		}
       
  1291 		var dateFormat = this._get(inst, 'dateFormat');
       
  1292 		var dates = inst.lastVal = inst.input ? inst.input.val() : null;
       
  1293 		var date, defaultDate;
       
  1294 		date = defaultDate = this._getDefaultDate(inst);
       
  1295 		var settings = this._getFormatConfig(inst);
       
  1296 		try {
       
  1297 			date = this.parseDate(dateFormat, dates, settings) || defaultDate;
       
  1298 		} catch (event) {
       
  1299 			this.log(event);
       
  1300 			dates = (noDefault ? '' : dates);
       
  1301 		}
       
  1302 		inst.selectedDay = date.getDate();
       
  1303 		inst.drawMonth = inst.selectedMonth = date.getMonth();
       
  1304 		inst.drawYear = inst.selectedYear = date.getFullYear();
       
  1305 		inst.currentDay = (dates ? date.getDate() : 0);
       
  1306 		inst.currentMonth = (dates ? date.getMonth() : 0);
       
  1307 		inst.currentYear = (dates ? date.getFullYear() : 0);
       
  1308 		this._adjustInstDate(inst);
       
  1309 	},
       
  1310 
       
  1311 	/* Retrieve the default date shown on opening. */
       
  1312 	_getDefaultDate: function(inst) {
       
  1313 		return this._restrictMinMax(inst,
       
  1314 			this._determineDate(inst, this._get(inst, 'defaultDate'), new Date()));
       
  1315 	},
       
  1316 
       
  1317 	/* A date may be specified as an exact value or a relative one. */
       
  1318 	_determineDate: function(inst, date, defaultDate) {
       
  1319 		var offsetNumeric = function(offset) {
       
  1320 			var date = new Date();
       
  1321 			date.setDate(date.getDate() + offset);
       
  1322 			return date;
       
  1323 		};
       
  1324 		var offsetString = function(offset) {
       
  1325 			try {
       
  1326 				return $.datepicker.parseDate($.datepicker._get(inst, 'dateFormat'),
       
  1327 					offset, $.datepicker._getFormatConfig(inst));
       
  1328 			}
       
  1329 			catch (e) {
       
  1330 				// Ignore
       
  1331 			}
       
  1332 			var date = (offset.toLowerCase().match(/^c/) ?
       
  1333 				$.datepicker._getDate(inst) : null) || new Date();
       
  1334 			var year = date.getFullYear();
       
  1335 			var month = date.getMonth();
       
  1336 			var day = date.getDate();
       
  1337 			var pattern = /([+-]?[0-9]+)\s*(d|D|w|W|m|M|y|Y)?/g;
       
  1338 			var matches = pattern.exec(offset);
       
  1339 			while (matches) {
       
  1340 				switch (matches[2] || 'd') {
       
  1341 					case 'd' : case 'D' :
       
  1342 						day += parseInt(matches[1],10); break;
       
  1343 					case 'w' : case 'W' :
       
  1344 						day += parseInt(matches[1],10) * 7; break;
       
  1345 					case 'm' : case 'M' :
       
  1346 						month += parseInt(matches[1],10);
       
  1347 						day = Math.min(day, $.datepicker._getDaysInMonth(year, month));
       
  1348 						break;
       
  1349 					case 'y': case 'Y' :
       
  1350 						year += parseInt(matches[1],10);
       
  1351 						day = Math.min(day, $.datepicker._getDaysInMonth(year, month));
       
  1352 						break;
       
  1353 				}
       
  1354 				matches = pattern.exec(offset);
       
  1355 			}
       
  1356 			return new Date(year, month, day);
       
  1357 		};
       
  1358 		var newDate = (date == null || date === '' ? defaultDate : (typeof date == 'string' ? offsetString(date) :
       
  1359 			(typeof date == 'number' ? (isNaN(date) ? defaultDate : offsetNumeric(date)) : new Date(date.getTime()))));
       
  1360 		newDate = (newDate && newDate.toString() == 'Invalid Date' ? defaultDate : newDate);
       
  1361 		if (newDate) {
       
  1362 			newDate.setHours(0);
       
  1363 			newDate.setMinutes(0);
       
  1364 			newDate.setSeconds(0);
       
  1365 			newDate.setMilliseconds(0);
       
  1366 		}
       
  1367 		return this._daylightSavingAdjust(newDate);
       
  1368 	},
       
  1369 
       
  1370 	/* Handle switch to/from daylight saving.
       
  1371 	   Hours may be non-zero on daylight saving cut-over:
       
  1372 	   > 12 when midnight changeover, but then cannot generate
       
  1373 	   midnight datetime, so jump to 1AM, otherwise reset.
       
  1374 	   @param  date  (Date) the date to check
       
  1375 	   @return  (Date) the corrected date */
       
  1376 	_daylightSavingAdjust: function(date) {
       
  1377 		if (!date) return null;
       
  1378 		date.setHours(date.getHours() > 12 ? date.getHours() + 2 : 0);
       
  1379 		return date;
       
  1380 	},
       
  1381 
       
  1382 	/* Set the date(s) directly. */
       
  1383 	_setDate: function(inst, date, noChange) {
       
  1384 		var clear = !date;
       
  1385 		var origMonth = inst.selectedMonth;
       
  1386 		var origYear = inst.selectedYear;
       
  1387 		var newDate = this._restrictMinMax(inst, this._determineDate(inst, date, new Date()));
       
  1388 		inst.selectedDay = inst.currentDay = newDate.getDate();
       
  1389 		inst.drawMonth = inst.selectedMonth = inst.currentMonth = newDate.getMonth();
       
  1390 		inst.drawYear = inst.selectedYear = inst.currentYear = newDate.getFullYear();
       
  1391 		if ((origMonth != inst.selectedMonth || origYear != inst.selectedYear) && !noChange)
       
  1392 			this._notifyChange(inst);
       
  1393 		this._adjustInstDate(inst);
       
  1394 		if (inst.input) {
       
  1395 			inst.input.val(clear ? '' : this._formatDate(inst));
       
  1396 		}
       
  1397 	},
       
  1398 
       
  1399 	/* Retrieve the date(s) directly. */
       
  1400 	_getDate: function(inst) {
       
  1401 		var startDate = (!inst.currentYear || (inst.input && inst.input.val() == '') ? null :
       
  1402 			this._daylightSavingAdjust(new Date(
       
  1403 			inst.currentYear, inst.currentMonth, inst.currentDay)));
       
  1404 			return startDate;
       
  1405 	},
       
  1406 
       
  1407 	/* Generate the HTML for the current state of the date picker. */
       
  1408 	_generateHTML: function(inst) {
       
  1409 		var today = new Date();
       
  1410 		today = this._daylightSavingAdjust(
       
  1411 			new Date(today.getFullYear(), today.getMonth(), today.getDate())); // clear time
       
  1412 		var isRTL = this._get(inst, 'isRTL');
       
  1413 		var showButtonPanel = this._get(inst, 'showButtonPanel');
       
  1414 		var hideIfNoPrevNext = this._get(inst, 'hideIfNoPrevNext');
       
  1415 		var navigationAsDateFormat = this._get(inst, 'navigationAsDateFormat');
       
  1416 		var numMonths = this._getNumberOfMonths(inst);
       
  1417 		var showCurrentAtPos = this._get(inst, 'showCurrentAtPos');
       
  1418 		var stepMonths = this._get(inst, 'stepMonths');
       
  1419 		var isMultiMonth = (numMonths[0] != 1 || numMonths[1] != 1);
       
  1420 		var currentDate = this._daylightSavingAdjust((!inst.currentDay ? new Date(9999, 9, 9) :
       
  1421 			new Date(inst.currentYear, inst.currentMonth, inst.currentDay)));
       
  1422 		var minDate = this._getMinMaxDate(inst, 'min');
       
  1423 		var maxDate = this._getMinMaxDate(inst, 'max');
       
  1424 		var drawMonth = inst.drawMonth - showCurrentAtPos;
       
  1425 		var drawYear = inst.drawYear;
       
  1426 		if (drawMonth < 0) {
       
  1427 			drawMonth += 12;
       
  1428 			drawYear--;
       
  1429 		}
       
  1430 		if (maxDate) {
       
  1431 			var maxDraw = this._daylightSavingAdjust(new Date(maxDate.getFullYear(),
       
  1432 				maxDate.getMonth() - (numMonths[0] * numMonths[1]) + 1, maxDate.getDate()));
       
  1433 			maxDraw = (minDate && maxDraw < minDate ? minDate : maxDraw);
       
  1434 			while (this._daylightSavingAdjust(new Date(drawYear, drawMonth, 1)) > maxDraw) {
       
  1435 				drawMonth--;
       
  1436 				if (drawMonth < 0) {
       
  1437 					drawMonth = 11;
       
  1438 					drawYear--;
       
  1439 				}
       
  1440 			}
       
  1441 		}
       
  1442 		inst.drawMonth = drawMonth;
       
  1443 		inst.drawYear = drawYear;
       
  1444 		var prevText = this._get(inst, 'prevText');
       
  1445 		prevText = (!navigationAsDateFormat ? prevText : this.formatDate(prevText,
       
  1446 			this._daylightSavingAdjust(new Date(drawYear, drawMonth - stepMonths, 1)),
       
  1447 			this._getFormatConfig(inst)));
       
  1448 		var prev = (this._canAdjustMonth(inst, -1, drawYear, drawMonth) ?
       
  1449 			'<a class="ui-datepicker-prev ui-corner-all" onclick="DP_jQuery_' + dpuuid +
       
  1450 			'.datepicker._adjustDate(\'#' + inst.id + '\', -' + stepMonths + ', \'M\');"' +
       
  1451 			' title="' + prevText + '"><span class="ui-icon ui-icon-circle-triangle-' + ( isRTL ? 'e' : 'w') + '">' + prevText + '</span></a>' :
       
  1452 			(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>'));
       
  1453 		var nextText = this._get(inst, 'nextText');
       
  1454 		nextText = (!navigationAsDateFormat ? nextText : this.formatDate(nextText,
       
  1455 			this._daylightSavingAdjust(new Date(drawYear, drawMonth + stepMonths, 1)),
       
  1456 			this._getFormatConfig(inst)));
       
  1457 		var next = (this._canAdjustMonth(inst, +1, drawYear, drawMonth) ?
       
  1458 			'<a class="ui-datepicker-next ui-corner-all" onclick="DP_jQuery_' + dpuuid +
       
  1459 			'.datepicker._adjustDate(\'#' + inst.id + '\', +' + stepMonths + ', \'M\');"' +
       
  1460 			' title="' + nextText + '"><span class="ui-icon ui-icon-circle-triangle-' + ( isRTL ? 'w' : 'e') + '">' + nextText + '</span></a>' :
       
  1461 			(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>'));
       
  1462 		var currentText = this._get(inst, 'currentText');
       
  1463 		var gotoDate = (this._get(inst, 'gotoCurrent') && inst.currentDay ? currentDate : today);
       
  1464 		currentText = (!navigationAsDateFormat ? currentText :
       
  1465 			this.formatDate(currentText, gotoDate, this._getFormatConfig(inst)));
       
  1466 		var controls = (!inst.inline ? '<button type="button" class="ui-datepicker-close ui-state-default ui-priority-primary ui-corner-all" onclick="DP_jQuery_' + dpuuid +
       
  1467 			'.datepicker._hideDatepicker();">' + this._get(inst, 'closeText') + '</button>' : '');
       
  1468 		var buttonPanel = (showButtonPanel) ? '<div class="ui-datepicker-buttonpane ui-widget-content">' + (isRTL ? controls : '') +
       
  1469 			(this._isInRange(inst, gotoDate) ? '<button type="button" class="ui-datepicker-current ui-state-default ui-priority-secondary ui-corner-all" onclick="DP_jQuery_' + dpuuid +
       
  1470 			'.datepicker._gotoToday(\'#' + inst.id + '\');"' +
       
  1471 			'>' + currentText + '</button>' : '') + (isRTL ? '' : controls) + '</div>' : '';
       
  1472 		var firstDay = parseInt(this._get(inst, 'firstDay'),10);
       
  1473 		firstDay = (isNaN(firstDay) ? 0 : firstDay);
       
  1474 		var showWeek = this._get(inst, 'showWeek');
       
  1475 		var dayNames = this._get(inst, 'dayNames');
       
  1476 		var dayNamesShort = this._get(inst, 'dayNamesShort');
       
  1477 		var dayNamesMin = this._get(inst, 'dayNamesMin');
       
  1478 		var monthNames = this._get(inst, 'monthNames');
       
  1479 		var monthNamesShort = this._get(inst, 'monthNamesShort');
       
  1480 		var beforeShowDay = this._get(inst, 'beforeShowDay');
       
  1481 		var showOtherMonths = this._get(inst, 'showOtherMonths');
       
  1482 		var selectOtherMonths = this._get(inst, 'selectOtherMonths');
       
  1483 		var calculateWeek = this._get(inst, 'calculateWeek') || this.iso8601Week;
       
  1484 		var defaultDate = this._getDefaultDate(inst);
       
  1485 		var html = '';
       
  1486 		for (var row = 0; row < numMonths[0]; row++) {
       
  1487 			var group = '';
       
  1488 			this.maxRows = 4;
       
  1489 			for (var col = 0; col < numMonths[1]; col++) {
       
  1490 				var selectedDate = this._daylightSavingAdjust(new Date(drawYear, drawMonth, inst.selectedDay));
       
  1491 				var cornerClass = ' ui-corner-all';
       
  1492 				var calender = '';
       
  1493 				if (isMultiMonth) {
       
  1494 					calender += '<div class="ui-datepicker-group';
       
  1495 					if (numMonths[1] > 1)
       
  1496 						switch (col) {
       
  1497 							case 0: calender += ' ui-datepicker-group-first';
       
  1498 								cornerClass = ' ui-corner-' + (isRTL ? 'right' : 'left'); break;
       
  1499 							case numMonths[1]-1: calender += ' ui-datepicker-group-last';
       
  1500 								cornerClass = ' ui-corner-' + (isRTL ? 'left' : 'right'); break;
       
  1501 							default: calender += ' ui-datepicker-group-middle'; cornerClass = ''; break;
       
  1502 						}
       
  1503 					calender += '">';
       
  1504 				}
       
  1505 				calender += '<div class="ui-datepicker-header ui-widget-header ui-helper-clearfix' + cornerClass + '">' +
       
  1506 					(/all|left/.test(cornerClass) && row == 0 ? (isRTL ? next : prev) : '') +
       
  1507 					(/all|right/.test(cornerClass) && row == 0 ? (isRTL ? prev : next) : '') +
       
  1508 					this._generateMonthYearHeader(inst, drawMonth, drawYear, minDate, maxDate,
       
  1509 					row > 0 || col > 0, monthNames, monthNamesShort) + // draw month headers
       
  1510 					'</div><table class="ui-datepicker-calendar"><thead>' +
       
  1511 					'<tr>';
       
  1512 				var thead = (showWeek ? '<th class="ui-datepicker-week-col">' + this._get(inst, 'weekHeader') + '</th>' : '');
       
  1513 				for (var dow = 0; dow < 7; dow++) { // days of the week
       
  1514 					var day = (dow + firstDay) % 7;
       
  1515 					thead += '<th' + ((dow + firstDay + 6) % 7 >= 5 ? ' class="ui-datepicker-week-end"' : '') + '>' +
       
  1516 						'<span title="' + dayNames[day] + '">' + dayNamesMin[day] + '</span></th>';
       
  1517 				}
       
  1518 				calender += thead + '</tr></thead><tbody>';
       
  1519 				var daysInMonth = this._getDaysInMonth(drawYear, drawMonth);
       
  1520 				if (drawYear == inst.selectedYear && drawMonth == inst.selectedMonth)
       
  1521 					inst.selectedDay = Math.min(inst.selectedDay, daysInMonth);
       
  1522 				var leadDays = (this._getFirstDayOfMonth(drawYear, drawMonth) - firstDay + 7) % 7;
       
  1523 				var curRows = Math.ceil((leadDays + daysInMonth) / 7); // calculate the number of rows to generate
       
  1524 				var numRows = (isMultiMonth ? this.maxRows > curRows ? this.maxRows : curRows : curRows); //If multiple months, use the higher number of rows (see #7043)
       
  1525 				this.maxRows = numRows;
       
  1526 				var printDate = this._daylightSavingAdjust(new Date(drawYear, drawMonth, 1 - leadDays));
       
  1527 				for (var dRow = 0; dRow < numRows; dRow++) { // create date picker rows
       
  1528 					calender += '<tr>';
       
  1529 					var tbody = (!showWeek ? '' : '<td class="ui-datepicker-week-col">' +
       
  1530 						this._get(inst, 'calculateWeek')(printDate) + '</td>');
       
  1531 					for (var dow = 0; dow < 7; dow++) { // create date picker days
       
  1532 						var daySettings = (beforeShowDay ?
       
  1533 							beforeShowDay.apply((inst.input ? inst.input[0] : null), [printDate]) : [true, '']);
       
  1534 						var otherMonth = (printDate.getMonth() != drawMonth);
       
  1535 						var unselectable = (otherMonth && !selectOtherMonths) || !daySettings[0] ||
       
  1536 							(minDate && printDate < minDate) || (maxDate && printDate > maxDate);
       
  1537 						tbody += '<td class="' +
       
  1538 							((dow + firstDay + 6) % 7 >= 5 ? ' ui-datepicker-week-end' : '') + // highlight weekends
       
  1539 							(otherMonth ? ' ui-datepicker-other-month' : '') + // highlight days from other months
       
  1540 							((printDate.getTime() == selectedDate.getTime() && drawMonth == inst.selectedMonth && inst._keyEvent) || // user pressed key
       
  1541 							(defaultDate.getTime() == printDate.getTime() && defaultDate.getTime() == selectedDate.getTime()) ?
       
  1542 							// or defaultDate is current printedDate and defaultDate is selectedDate
       
  1543 							' ' + this._dayOverClass : '') + // highlight selected day
       
  1544 							(unselectable ? ' ' + this._unselectableClass + ' ui-state-disabled': '') +  // highlight unselectable days
       
  1545 							(otherMonth && !showOtherMonths ? '' : ' ' + daySettings[1] + // highlight custom dates
       
  1546 							(printDate.getTime() == currentDate.getTime() ? ' ' + this._currentClass : '') + // highlight selected day
       
  1547 							(printDate.getTime() == today.getTime() ? ' ui-datepicker-today' : '')) + '"' + // highlight today (if different)
       
  1548 							((!otherMonth || showOtherMonths) && daySettings[2] ? ' title="' + daySettings[2] + '"' : '') + // cell title
       
  1549 							(unselectable ? '' : ' onclick="DP_jQuery_' + dpuuid + '.datepicker._selectDay(\'#' +
       
  1550 							inst.id + '\',' + printDate.getMonth() + ',' + printDate.getFullYear() + ', this);return false;"') + '>' + // actions
       
  1551 							(otherMonth && !showOtherMonths ? '&#xa0;' : // display for other months
       
  1552 							(unselectable ? '<span class="ui-state-default">' + printDate.getDate() + '</span>' : '<a class="ui-state-default' +
       
  1553 							(printDate.getTime() == today.getTime() ? ' ui-state-highlight' : '') +
       
  1554 							(printDate.getTime() == currentDate.getTime() ? ' ui-state-active' : '') + // highlight selected day
       
  1555 							(otherMonth ? ' ui-priority-secondary' : '') + // distinguish dates from other months
       
  1556 							'" href="#">' + printDate.getDate() + '</a>')) + '</td>'; // display selectable date
       
  1557 						printDate.setDate(printDate.getDate() + 1);
       
  1558 						printDate = this._daylightSavingAdjust(printDate);
       
  1559 					}
       
  1560 					calender += tbody + '</tr>';
       
  1561 				}
       
  1562 				drawMonth++;
       
  1563 				if (drawMonth > 11) {
       
  1564 					drawMonth = 0;
       
  1565 					drawYear++;
       
  1566 				}
       
  1567 				calender += '</tbody></table>' + (isMultiMonth ? '</div>' + 
       
  1568 							((numMonths[0] > 0 && col == numMonths[1]-1) ? '<div class="ui-datepicker-row-break"></div>' : '') : '');
       
  1569 				group += calender;
       
  1570 			}
       
  1571 			html += group;
       
  1572 		}
       
  1573 		html += buttonPanel + ($.browser.msie && parseInt($.browser.version,10) < 7 && !inst.inline ?
       
  1574 			'<iframe src="javascript:false;" class="ui-datepicker-cover" frameborder="0"></iframe>' : '');
       
  1575 		inst._keyEvent = false;
       
  1576 		return html;
       
  1577 	},
       
  1578 
       
  1579 	/* Generate the month and year header. */
       
  1580 	_generateMonthYearHeader: function(inst, drawMonth, drawYear, minDate, maxDate,
       
  1581 			secondary, monthNames, monthNamesShort) {
       
  1582 		var changeMonth = this._get(inst, 'changeMonth');
       
  1583 		var changeYear = this._get(inst, 'changeYear');
       
  1584 		var showMonthAfterYear = this._get(inst, 'showMonthAfterYear');
       
  1585 		var html = '<div class="ui-datepicker-title">';
       
  1586 		var monthHtml = '';
       
  1587 		// month selection
       
  1588 		if (secondary || !changeMonth)
       
  1589 			monthHtml += '<span class="ui-datepicker-month">' + monthNames[drawMonth] + '</span>';
       
  1590 		else {
       
  1591 			var inMinYear = (minDate && minDate.getFullYear() == drawYear);
       
  1592 			var inMaxYear = (maxDate && maxDate.getFullYear() == drawYear);
       
  1593 			monthHtml += '<select class="ui-datepicker-month" ' +
       
  1594 				'onchange="DP_jQuery_' + dpuuid + '.datepicker._selectMonthYear(\'#' + inst.id + '\', this, \'M\');" ' +
       
  1595 			 	'>';
       
  1596 			for (var month = 0; month < 12; month++) {
       
  1597 				if ((!inMinYear || month >= minDate.getMonth()) &&
       
  1598 						(!inMaxYear || month <= maxDate.getMonth()))
       
  1599 					monthHtml += '<option value="' + month + '"' +
       
  1600 						(month == drawMonth ? ' selected="selected"' : '') +
       
  1601 						'>' + monthNamesShort[month] + '</option>';
       
  1602 			}
       
  1603 			monthHtml += '</select>';
       
  1604 		}
       
  1605 		if (!showMonthAfterYear)
       
  1606 			html += monthHtml + (secondary || !(changeMonth && changeYear) ? '&#xa0;' : '');
       
  1607 		// year selection
       
  1608 		if ( !inst.yearshtml ) {
       
  1609 			inst.yearshtml = '';
       
  1610 			if (secondary || !changeYear)
       
  1611 				html += '<span class="ui-datepicker-year">' + drawYear + '</span>';
       
  1612 			else {
       
  1613 				// determine range of years to display
       
  1614 				var years = this._get(inst, 'yearRange').split(':');
       
  1615 				var thisYear = new Date().getFullYear();
       
  1616 				var determineYear = function(value) {
       
  1617 					var year = (value.match(/c[+-].*/) ? drawYear + parseInt(value.substring(1), 10) :
       
  1618 						(value.match(/[+-].*/) ? thisYear + parseInt(value, 10) :
       
  1619 						parseInt(value, 10)));
       
  1620 					return (isNaN(year) ? thisYear : year);
       
  1621 				};
       
  1622 				var year = determineYear(years[0]);
       
  1623 				var endYear = Math.max(year, determineYear(years[1] || ''));
       
  1624 				year = (minDate ? Math.max(year, minDate.getFullYear()) : year);
       
  1625 				endYear = (maxDate ? Math.min(endYear, maxDate.getFullYear()) : endYear);
       
  1626 				inst.yearshtml += '<select class="ui-datepicker-year" ' +
       
  1627 					'onchange="DP_jQuery_' + dpuuid + '.datepicker._selectMonthYear(\'#' + inst.id + '\', this, \'Y\');" ' +
       
  1628 					'>';
       
  1629 				for (; year <= endYear; year++) {
       
  1630 					inst.yearshtml += '<option value="' + year + '"' +
       
  1631 						(year == drawYear ? ' selected="selected"' : '') +
       
  1632 						'>' + year + '</option>';
       
  1633 				}
       
  1634 				inst.yearshtml += '</select>';
       
  1635 				
       
  1636 				html += inst.yearshtml;
       
  1637 				inst.yearshtml = null;
       
  1638 			}
       
  1639 		}
       
  1640 		html += this._get(inst, 'yearSuffix');
       
  1641 		if (showMonthAfterYear)
       
  1642 			html += (secondary || !(changeMonth && changeYear) ? '&#xa0;' : '') + monthHtml;
       
  1643 		html += '</div>'; // Close datepicker_header
       
  1644 		return html;
       
  1645 	},
       
  1646 
       
  1647 	/* Adjust one of the date sub-fields. */
       
  1648 	_adjustInstDate: function(inst, offset, period) {
       
  1649 		var year = inst.drawYear + (period == 'Y' ? offset : 0);
       
  1650 		var month = inst.drawMonth + (period == 'M' ? offset : 0);
       
  1651 		var day = Math.min(inst.selectedDay, this._getDaysInMonth(year, month)) +
       
  1652 			(period == 'D' ? offset : 0);
       
  1653 		var date = this._restrictMinMax(inst,
       
  1654 			this._daylightSavingAdjust(new Date(year, month, day)));
       
  1655 		inst.selectedDay = date.getDate();
       
  1656 		inst.drawMonth = inst.selectedMonth = date.getMonth();
       
  1657 		inst.drawYear = inst.selectedYear = date.getFullYear();
       
  1658 		if (period == 'M' || period == 'Y')
       
  1659 			this._notifyChange(inst);
       
  1660 	},
       
  1661 
       
  1662 	/* Ensure a date is within any min/max bounds. */
       
  1663 	_restrictMinMax: function(inst, date) {
       
  1664 		var minDate = this._getMinMaxDate(inst, 'min');
       
  1665 		var maxDate = this._getMinMaxDate(inst, 'max');
       
  1666 		var newDate = (minDate && date < minDate ? minDate : date);
       
  1667 		newDate = (maxDate && newDate > maxDate ? maxDate : newDate);
       
  1668 		return newDate;
       
  1669 	},
       
  1670 
       
  1671 	/* Notify change of month/year. */
       
  1672 	_notifyChange: function(inst) {
       
  1673 		var onChange = this._get(inst, 'onChangeMonthYear');
       
  1674 		if (onChange)
       
  1675 			onChange.apply((inst.input ? inst.input[0] : null),
       
  1676 				[inst.selectedYear, inst.selectedMonth + 1, inst]);
       
  1677 	},
       
  1678 
       
  1679 	/* Determine the number of months to show. */
       
  1680 	_getNumberOfMonths: function(inst) {
       
  1681 		var numMonths = this._get(inst, 'numberOfMonths');
       
  1682 		return (numMonths == null ? [1, 1] : (typeof numMonths == 'number' ? [1, numMonths] : numMonths));
       
  1683 	},
       
  1684 
       
  1685 	/* Determine the current maximum date - ensure no time components are set. */
       
  1686 	_getMinMaxDate: function(inst, minMax) {
       
  1687 		return this._determineDate(inst, this._get(inst, minMax + 'Date'), null);
       
  1688 	},
       
  1689 
       
  1690 	/* Find the number of days in a given month. */
       
  1691 	_getDaysInMonth: function(year, month) {
       
  1692 		return 32 - this._daylightSavingAdjust(new Date(year, month, 32)).getDate();
       
  1693 	},
       
  1694 
       
  1695 	/* Find the day of the week of the first of a month. */
       
  1696 	_getFirstDayOfMonth: function(year, month) {
       
  1697 		return new Date(year, month, 1).getDay();
       
  1698 	},
       
  1699 
       
  1700 	/* Determines if we should allow a "next/prev" month display change. */
       
  1701 	_canAdjustMonth: function(inst, offset, curYear, curMonth) {
       
  1702 		var numMonths = this._getNumberOfMonths(inst);
       
  1703 		var date = this._daylightSavingAdjust(new Date(curYear,
       
  1704 			curMonth + (offset < 0 ? offset : numMonths[0] * numMonths[1]), 1));
       
  1705 		if (offset < 0)
       
  1706 			date.setDate(this._getDaysInMonth(date.getFullYear(), date.getMonth()));
       
  1707 		return this._isInRange(inst, date);
       
  1708 	},
       
  1709 
       
  1710 	/* Is the given date in the accepted range? */
       
  1711 	_isInRange: function(inst, date) {
       
  1712 		var minDate = this._getMinMaxDate(inst, 'min');
       
  1713 		var maxDate = this._getMinMaxDate(inst, 'max');
       
  1714 		return ((!minDate || date.getTime() >= minDate.getTime()) &&
       
  1715 			(!maxDate || date.getTime() <= maxDate.getTime()));
       
  1716 	},
       
  1717 
       
  1718 	/* Provide the configuration settings for formatting/parsing. */
       
  1719 	_getFormatConfig: function(inst) {
       
  1720 		var shortYearCutoff = this._get(inst, 'shortYearCutoff');
       
  1721 		shortYearCutoff = (typeof shortYearCutoff != 'string' ? shortYearCutoff :
       
  1722 			new Date().getFullYear() % 100 + parseInt(shortYearCutoff, 10));
       
  1723 		return {shortYearCutoff: shortYearCutoff,
       
  1724 			dayNamesShort: this._get(inst, 'dayNamesShort'), dayNames: this._get(inst, 'dayNames'),
       
  1725 			monthNamesShort: this._get(inst, 'monthNamesShort'), monthNames: this._get(inst, 'monthNames')};
       
  1726 	},
       
  1727 
       
  1728 	/* Format the given date for display. */
       
  1729 	_formatDate: function(inst, day, month, year) {
       
  1730 		if (!day) {
       
  1731 			inst.currentDay = inst.selectedDay;
       
  1732 			inst.currentMonth = inst.selectedMonth;
       
  1733 			inst.currentYear = inst.selectedYear;
       
  1734 		}
       
  1735 		var date = (day ? (typeof day == 'object' ? day :
       
  1736 			this._daylightSavingAdjust(new Date(year, month, day))) :
       
  1737 			this._daylightSavingAdjust(new Date(inst.currentYear, inst.currentMonth, inst.currentDay)));
       
  1738 		return this.formatDate(this._get(inst, 'dateFormat'), date, this._getFormatConfig(inst));
       
  1739 	}
       
  1740 });
       
  1741 
       
  1742 /*
       
  1743  * Bind hover events for datepicker elements.
       
  1744  * Done via delegate so the binding only occurs once in the lifetime of the parent div.
       
  1745  * Global instActive, set by _updateDatepicker allows the handlers to find their way back to the active picker.
       
  1746  */ 
       
  1747 function bindHover(dpDiv) {
       
  1748 	var selector = 'button, .ui-datepicker-prev, .ui-datepicker-next, .ui-datepicker-calendar td a';
       
  1749 	return dpDiv.bind('mouseout', function(event) {
       
  1750 			var elem = $( event.target ).closest( selector );
       
  1751 			if ( !elem.length ) {
       
  1752 				return;
       
  1753 			}
       
  1754 			elem.removeClass( "ui-state-hover ui-datepicker-prev-hover ui-datepicker-next-hover" );
       
  1755 		})
       
  1756 		.bind('mouseover', function(event) {
       
  1757 			var elem = $( event.target ).closest( selector );
       
  1758 			if ($.datepicker._isDisabledDatepicker( instActive.inline ? dpDiv.parent()[0] : instActive.input[0]) ||
       
  1759 					!elem.length ) {
       
  1760 				return;
       
  1761 			}
       
  1762 			elem.parents('.ui-datepicker-calendar').find('a').removeClass('ui-state-hover');
       
  1763 			elem.addClass('ui-state-hover');
       
  1764 			if (elem.hasClass('ui-datepicker-prev')) elem.addClass('ui-datepicker-prev-hover');
       
  1765 			if (elem.hasClass('ui-datepicker-next')) elem.addClass('ui-datepicker-next-hover');
       
  1766 		});
       
  1767 }
       
  1768 
       
  1769 /* jQuery extend now ignores nulls! */
       
  1770 function extendRemove(target, props) {
       
  1771 	$.extend(target, props);
       
  1772 	for (var name in props)
       
  1773 		if (props[name] == null || props[name] == undefined)
       
  1774 			target[name] = props[name];
       
  1775 	return target;
       
  1776 };
       
  1777 
       
  1778 /* Determine whether an object is an array. */
       
  1779 function isArray(a) {
       
  1780 	return (a && (($.browser.safari && typeof a == 'object' && a.length) ||
       
  1781 		(a.constructor && a.constructor.toString().match(/\Array\(\)/))));
       
  1782 };
       
  1783 
       
  1784 /* Invoke the datepicker functionality.
       
  1785    @param  options  string - a command, optionally followed by additional parameters or
       
  1786                     Object - settings for attaching new datepicker functionality
       
  1787    @return  jQuery object */
       
  1788 $.fn.datepicker = function(options){
       
  1789 	
       
  1790 	/* Verify an empty collection wasn't passed - Fixes #6976 */
       
  1791 	if ( !this.length ) {
       
  1792 		return this;
       
  1793 	}
       
  1794 	
       
  1795 	/* Initialise the date picker. */
       
  1796 	if (!$.datepicker.initialized) {
       
  1797 		$(document).mousedown($.datepicker._checkExternalClick).
       
  1798 			find('body').append($.datepicker.dpDiv);
       
  1799 		$.datepicker.initialized = true;
       
  1800 	}
       
  1801 
       
  1802 	var otherArgs = Array.prototype.slice.call(arguments, 1);
       
  1803 	if (typeof options == 'string' && (options == 'isDisabled' || options == 'getDate' || options == 'widget'))
       
  1804 		return $.datepicker['_' + options + 'Datepicker'].
       
  1805 			apply($.datepicker, [this[0]].concat(otherArgs));
       
  1806 	if (options == 'option' && arguments.length == 2 && typeof arguments[1] == 'string')
       
  1807 		return $.datepicker['_' + options + 'Datepicker'].
       
  1808 			apply($.datepicker, [this[0]].concat(otherArgs));
       
  1809 	return this.each(function() {
       
  1810 		typeof options == 'string' ?
       
  1811 			$.datepicker['_' + options + 'Datepicker'].
       
  1812 				apply($.datepicker, [this].concat(otherArgs)) :
       
  1813 			$.datepicker._attachDatepicker(this, options);
       
  1814 	});
       
  1815 };
       
  1816 
       
  1817 $.datepicker = new Datepicker(); // singleton instance
       
  1818 $.datepicker.initialized = false;
       
  1819 $.datepicker.uuid = new Date().getTime();
       
  1820 $.datepicker.version = "1.8.18";
       
  1821 
       
  1822 // Workaround for #4055
       
  1823 // Add another global to avoid noConflict issues with inline event handlers
       
  1824 window['DP_jQuery_' + dpuuid] = $;
       
  1825 
       
  1826 })(jQuery);