upgraded jquery ui from 1.9.0 to 1.10.1

git-svn-id: http://piwigo.org/svn/trunk@20824 68402e56-0260-453c-a942-63ccdbb3a9ee

1 files changed, 1090 insertions, 886 deletions

diff --git a/themes/default/js/ui/jquery.ui.datepicker.js b/themes/default/js/ui/jquery.ui.datepicker.js
index 5af962e69..e7c98c6ae 100644
--- a/themes/default/js/ui/jquery.ui.datepicker.js
+++ b/themes/default/js/ui/jquery.ui.datepicker.js
@@ -1,8 +1,8 @@
 /*!
- * jQuery UI Datepicker 1.9.0
+ * jQuery UI Datepicker 1.10.1
  * http://jqueryui.com
  *
- * Copyright 2012 jQuery Foundation and other contributors
+ * Copyright 2013 jQuery Foundation and other contributors
  * Released under the MIT license.
  * http://jquery.org/license
  *
@@ -13,11 +13,11 @@
  */
 (function( $, undefined ) {
 
-$.extend($.ui, { datepicker: { version: "1.9.0" } });
+$.extend($.ui, { datepicker: { version: "1.10.1" } });
 
-var PROP_NAME = 'datepicker';
-var dpuuid = new Date().getTime();
-var instActive;
+var PROP_NAME = "datepicker",
+	dpuuid = new Date().getTime(),
+	instActive;
 
 /* Date picker manager.
    Use the singleton instance of this class, $.datepicker, to interact with the date picker.
@@ -25,50 +25,49 @@ var instActive;
    allowing multiple different settings on the same page. */
 
 function Datepicker() {
-	this.debug = false; // Change this to true to start debugging
 	this._curInst = null; // The current instance in use
 	this._keyEvent = false; // If the last event was a key event
 	this._disabledInputs = []; // List of date picker inputs that have been disabled
 	this._datepickerShowing = false; // True if the popup picker is showing , false if not
 	this._inDialog = false; // True if showing within a "dialog", false if not
-	this._mainDivId = 'ui-datepicker-div'; // The ID of the main datepicker division
-	this._inlineClass = 'ui-datepicker-inline'; // The name of the inline marker class
-	this._appendClass = 'ui-datepicker-append'; // The name of the append marker class
-	this._triggerClass = 'ui-datepicker-trigger'; // The name of the trigger marker class
-	this._dialogClass = 'ui-datepicker-dialog'; // The name of the dialog marker class
-	this._disableClass = 'ui-datepicker-disabled'; // The name of the disabled covering marker class
-	this._unselectableClass = 'ui-datepicker-unselectable'; // The name of the unselectable cell marker class
-	this._currentClass = 'ui-datepicker-current-day'; // The name of the current day marker class
-	this._dayOverClass = 'ui-datepicker-days-cell-over'; // The name of the day hover marker class
+	this._mainDivId = "ui-datepicker-div"; // The ID of the main datepicker division
+	this._inlineClass = "ui-datepicker-inline"; // The name of the inline marker class
+	this._appendClass = "ui-datepicker-append"; // The name of the append marker class
+	this._triggerClass = "ui-datepicker-trigger"; // The name of the trigger marker class
+	this._dialogClass = "ui-datepicker-dialog"; // The name of the dialog marker class
+	this._disableClass = "ui-datepicker-disabled"; // The name of the disabled covering marker class
+	this._unselectableClass = "ui-datepicker-unselectable"; // The name of the unselectable cell marker class
+	this._currentClass = "ui-datepicker-current-day"; // The name of the current day marker class
+	this._dayOverClass = "ui-datepicker-days-cell-over"; // The name of the day hover marker class
 	this.regional = []; // Available regional settings, indexed by language code
-	this.regional[''] = { // Default regional settings
-		closeText: 'Done', // Display text for close link
-		prevText: 'Prev', // Display text for previous month link
-		nextText: 'Next', // Display text for next month link
-		currentText: 'Today', // Display text for current month link
-		monthNames: ['January','February','March','April','May','June',
-			'July','August','September','October','November','December'], // Names of months for drop-down and formatting
-		monthNamesShort: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'], // For formatting
-		dayNames: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'], // For formatting
-		dayNamesShort: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'], // For formatting
-		dayNamesMin: ['Su','Mo','Tu','We','Th','Fr','Sa'], // Column headings for days starting at Sunday
-		weekHeader: 'Wk', // Column header for week of the year
-		dateFormat: 'mm/dd/yy', // See format options on parseDate
+	this.regional[""] = { // Default regional settings
+		closeText: "Done", // Display text for close link
+		prevText: "Prev", // Display text for previous month link
+		nextText: "Next", // Display text for next month link
+		currentText: "Today", // Display text for current month link
+		monthNames: ["January","February","March","April","May","June",
+			"July","August","September","October","November","December"], // Names of months for drop-down and formatting
+		monthNamesShort: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"], // For formatting
+		dayNames: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"], // For formatting
+		dayNamesShort: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"], // For formatting
+		dayNamesMin: ["Su","Mo","Tu","We","Th","Fr","Sa"], // Column headings for days starting at Sunday
+		weekHeader: "Wk", // Column header for week of the year
+		dateFormat: "mm/dd/yy", // See format options on parseDate
 		firstDay: 0, // The first day of the week, Sun = 0, Mon = 1, ...
 		isRTL: false, // True if right-to-left language, false if left-to-right
 		showMonthAfterYear: false, // True if the year select precedes month, false for month then year
-		yearSuffix: '' // Additional text to append to the year in the month headers
+		yearSuffix: "" // Additional text to append to the year in the month headers
 	};
 	this._defaults = { // Global defaults for all the date picker instances
-		showOn: 'focus', // 'focus' for popup on focus,
-			// 'button' for trigger button, or 'both' for either
-		showAnim: 'fadeIn', // Name of jQuery animation for popup
+		showOn: "focus", // "focus" for popup on focus,
+			// "button" for trigger button, or "both" for either
+		showAnim: "fadeIn", // Name of jQuery animation for popup
 		showOptions: {}, // Options for enhanced animations
 		defaultDate: null, // Used when field is blank: actual date,
 			// +/-number for offset from today, null for today
-		appendText: '', // Display text following the input box, e.g. showing the format
-		buttonText: '...', // Text for trigger button
-		buttonImage: '', // URL for trigger button image
+		appendText: "", // Display text following the input box, e.g. showing the format
+		buttonText: "...", // Text for trigger button
+		buttonImage: "", // URL for trigger button image
 		buttonImageOnly: false, // True if the image appears alone, false if it appears on a button
 		hideIfNoPrevNext: false, // True to hide next/previous month links
 			// if not applicable, false to just disable them
@@ -76,7 +75,7 @@ function Datepicker() {
 		gotoCurrent: false, // True if today link goes back to current selection instead
 		changeMonth: false, // True if month can be selected directly, false if only prev/next
 		changeYear: false, // True if year can be selected directly, false if only prev/next
-		yearRange: 'c-10:c+10', // Range of years to display in drop-down,
+		yearRange: "c-10:c+10", // Range of years to display in drop-down,
 			// either relative to today's year (-nn:+nn), relative to currently displayed year
 			// (c-nn:c+nn), absolute (nnnn:nnnn), or a combination of the above (nnnn:-n)
 		showOtherMonths: false, // True to show dates in other months, false to leave blank
@@ -84,14 +83,14 @@ function Datepicker() {
 		showWeek: false, // True to show week of the year, false to not show it
 		calculateWeek: this.iso8601Week, // How to calculate the week of the year,
 			// takes a Date and returns the number of the week for it
-		shortYearCutoff: '+10', // Short year values < this are in the current century,
+		shortYearCutoff: "+10", // Short year values < this are in the current century,
 			// > this are in the previous century,
-			// string value starting with '+' for current year + value
+			// string value starting with "+" for current year + value
 		minDate: null, // The earliest selectable date, or null for no limit
 		maxDate: null, // The latest selectable date, or null for no limit
-		duration: 'fast', // Duration of display/closure
+		duration: "fast", // Duration of display/closure
 		beforeShowDay: null, // Function that takes a date and returns an array with
-			// [0] = true if selectable, false if not, [1] = custom CSS class name(s) or '',
+			// [0] = true if selectable, false if not, [1] = custom CSS class name(s) or "",
 			// [2] = cell title (optional), e.g. $.datepicker.noWeekends
 		beforeShow: null, // Function that takes an input field and
 			// returns a set of custom settings for the date picker
@@ -102,69 +101,53 @@ function Datepicker() {
 		showCurrentAtPos: 0, // The position in multipe months at which to show the current month (starting at 0)
 		stepMonths: 1, // Number of months to step back/forward
 		stepBigMonths: 12, // Number of months to step back/forward for the big links
-		altField: '', // Selector for an alternate field to store selected dates into
-		altFormat: '', // The date format to use for the alternate field
+		altField: "", // Selector for an alternate field to store selected dates into
+		altFormat: "", // The date format to use for the alternate field
 		constrainInput: true, // The input is constrained by the current date format
 		showButtonPanel: false, // True to show button panel, false to not show it
 		autoSize: false, // True to size the input for the date format, false to leave as is
 		disabled: false // The initial disabled state
 	};
-	$.extend(this._defaults, this.regional['']);
-	this.dpDiv = bindHover($('<div id="' + this._mainDivId + '" class="ui-datepicker ui-widget ui-widget-content ui-helper-clearfix ui-corner-all"></div>'));
+	$.extend(this._defaults, this.regional[""]);
+	this.dpDiv = bindHover($("<div id='" + this._mainDivId + "' class='ui-datepicker ui-widget ui-widget-content ui-helper-clearfix ui-corner-all'></div>"));
 }
 
 $.extend(Datepicker.prototype, {
 	/* Class name added to elements to indicate already configured with a date picker. */
-	markerClassName: 'hasDatepicker',
-	
+	markerClassName: "hasDatepicker",
+
 	//Keep track of the maximum number of rows displayed (see #7043)
 	maxRows: 4,
 
-	/* Debug logging (if enabled). */
-	log: function () {
-		if (this.debug)
-			console.log.apply('', arguments);
-	},
-	
 	// TODO rename to "widget" when switching to widget factory
 	_widgetDatepicker: function() {
 		return this.dpDiv;
 	},
 
 	/* Override the default settings for all instances of the date picker.
-	   @param  settings  object - the new settings to use as defaults (anonymous object)
-	   @return the manager object */
+	 * @param  settings  object - the new settings to use as defaults (anonymous object)
+	 * @return the manager object
+	 */
 	setDefaults: function(settings) {
 		extendRemove(this._defaults, settings || {});
 		return this;
 	},
 
 	/* Attach the date picker to a jQuery selection.
-	   @param  target    element - the target input field or division or span
-	   @param  settings  object - the new settings to use for this date picker instance (anonymous) */
+	 * @param  target	element - the target input field or division or span
+	 * @param  settings  object - the new settings to use for this date picker instance (anonymous)
+	 */
 	_attachDatepicker: function(target, settings) {
-		// check for settings on the control itself - in namespace 'date:'
-		var inlineSettings = null;
-		for (var attrName in this._defaults) {
-			var attrValue = target.getAttribute('date:' + attrName);
-			if (attrValue) {
-				inlineSettings = inlineSettings || {};
-				try {
-					inlineSettings[attrName] = eval(attrValue);
-				} catch (err) {
-					inlineSettings[attrName] = attrValue;
-				}
-			}
-		}
-		var nodeName = target.nodeName.toLowerCase();
-		var inline = (nodeName == 'div' || nodeName == 'span');
+		var nodeName, inline, inst;
+		nodeName = target.nodeName.toLowerCase();
+		inline = (nodeName === "div" || nodeName === "span");
 		if (!target.id) {
 			this.uuid += 1;
-			target.id = 'dp' + this.uuid;
+			target.id = "dp" + this.uuid;
 		}
-		var inst = this._newInst($(target), inline);
-		inst.settings = $.extend({}, settings || {}, inlineSettings || {});
-		if (nodeName == 'input') {
+		inst = this._newInst($(target), inline);
+		inst.settings = $.extend({}, settings || {});
+		if (nodeName === "input") {
 			this._connectDatepicker(target, inst);
 		} else if (inline) {
 			this._inlineDatepicker(target, inst);
@@ -173,13 +156,13 @@ $.extend(Datepicker.prototype, {
 
 	/* Create a new instance object. */
 	_newInst: function(target, inline) {
-		var id = target[0].id.replace(/([^A-Za-z0-9_-])/g, '\\\\$1'); // escape jQuery meta chars
+		var id = target[0].id.replace(/([^A-Za-z0-9_\-])/g, "\\\\$1"); // escape jQuery meta chars
 		return {id: id, input: target, // associated target
 			selectedDay: 0, selectedMonth: 0, selectedYear: 0, // current selection
 			drawMonth: 0, drawYear: 0, // month being drawn
 			inline: inline, // is datepicker inline or not
 			dpDiv: (!inline ? this.dpDiv : // presentation div
-			bindHover($('<div class="' + this._inlineClass + ' ui-datepicker ui-widget ui-widget-content ui-helper-clearfix ui-corner-all"></div>')))};
+			bindHover($("<div class='" + this._inlineClass + " ui-datepicker ui-widget ui-widget-content ui-helper-clearfix ui-corner-all'></div>")))};
 	},
 
 	/* Attach the date picker to an input field. */
@@ -187,16 +170,12 @@ $.extend(Datepicker.prototype, {
 		var input = $(target);
 		inst.append = $([]);
 		inst.trigger = $([]);
-		if (input.hasClass(this.markerClassName))
+		if (input.hasClass(this.markerClassName)) {
 			return;
+		}
 		this._attachments(input, inst);
 		input.addClass(this.markerClassName).keydown(this._doKeyDown).
-			keypress(this._doKeyPress).keyup(this._doKeyUp).
-			bind("setData.datepicker", function(event, key, value) {
-				inst.settings[key] = value;
-			}).bind("getData.datepicker", function(event, key) {
-				return this._get(inst, key);
-			});
+			keypress(this._doKeyPress).keyup(this._doKeyUp);
 		this._autoSize(inst);
 		$.data(target, PROP_NAME, inst);
 		//If disabled option is true, disable the datepicker once it has been attached to the input (see ticket #5665)
@@ -207,38 +186,47 @@ $.extend(Datepicker.prototype, {
 
 	/* Make attachments based on settings. */
 	_attachments: function(input, inst) {
-		var appendText = this._get(inst, 'appendText');
-		var isRTL = this._get(inst, 'isRTL');
-		if (inst.append)
+		var showOn, buttonText, buttonImage,
+			appendText = this._get(inst, "appendText"),
+			isRTL = this._get(inst, "isRTL");
+
+		if (inst.append) {
 			inst.append.remove();
+		}
 		if (appendText) {
-			inst.append = $('<span class="' + this._appendClass + '">' + appendText + '</span>');
-			input[isRTL ? 'before' : 'after'](inst.append);
+			inst.append = $("<span class='" + this._appendClass + "'>" + appendText + "</span>");
+			input[isRTL ? "before" : "after"](inst.append);
 		}
-		input.unbind('focus', this._showDatepicker);
-		if (inst.trigger)
+
+		input.unbind("focus", this._showDatepicker);
+
+		if (inst.trigger) {
 			inst.trigger.remove();
-		var showOn = this._get(inst, 'showOn');
-		if (showOn == 'focus' || showOn == 'both') // pop-up date picker when in the marked field
+		}
+
+		showOn = this._get(inst, "showOn");
+		if (showOn === "focus" || showOn === "both") { // pop-up date picker when in the marked field
 			input.focus(this._showDatepicker);
-		if (showOn == 'button' || showOn == 'both') { // pop-up date picker when button clicked
-			var buttonText = this._get(inst, 'buttonText');
-			var buttonImage = this._get(inst, 'buttonImage');
-			inst.trigger = $(this._get(inst, 'buttonImageOnly') ?
-				$('<img/>').addClass(this._triggerClass).
+		}
+		if (showOn === "button" || showOn === "both") { // pop-up date picker when button clicked
+			buttonText = this._get(inst, "buttonText");
+			buttonImage = this._get(inst, "buttonImage");
+			inst.trigger = $(this._get(inst, "buttonImageOnly") ?
+				$("<img/>").addClass(this._triggerClass).
 					attr({ src: buttonImage, alt: buttonText, title: buttonText }) :
-				$('<button type="button"></button>').addClass(this._triggerClass).
-					html(buttonImage == '' ? buttonText : $('<img/>').attr(
+				$("<button type='button'></button>").addClass(this._triggerClass).
+					html(!buttonImage ? buttonText : $("<img/>").attr(
 					{ src:buttonImage, alt:buttonText, title:buttonText })));
-			input[isRTL ? 'before' : 'after'](inst.trigger);
+			input[isRTL ? "before" : "after"](inst.trigger);
 			inst.trigger.click(function() {
-				if ($.datepicker._datepickerShowing && $.datepicker._lastInput == input[0])
+				if ($.datepicker._datepickerShowing && $.datepicker._lastInput === input[0]) {
+					$.datepicker._hideDatepicker();
+				} else if ($.datepicker._datepickerShowing && $.datepicker._lastInput !== input[0]) {
 					$.datepicker._hideDatepicker();
-				else if ($.datepicker._datepickerShowing && $.datepicker._lastInput != input[0]) {
-					$.datepicker._hideDatepicker(); 
 					$.datepicker._showDatepicker(input[0]);
-				} else
+				} else {
 					$.datepicker._showDatepicker(input[0]);
+				}
 				return false;
 			});
 		}
@@ -246,14 +234,16 @@ $.extend(Datepicker.prototype, {
 
 	/* Apply the maximum length for the date format. */
 	_autoSize: function(inst) {
-		if (this._get(inst, 'autoSize') && !inst.inline) {
-			var date = new Date(2009, 12 - 1, 20); // Ensure double digits
-			var dateFormat = this._get(inst, 'dateFormat');
+		if (this._get(inst, "autoSize") && !inst.inline) {
+			var findMax, max, maxI, i,
+				date = new Date(2009, 12 - 1, 20), // Ensure double digits
+				dateFormat = this._get(inst, "dateFormat");
+
 			if (dateFormat.match(/[DM]/)) {
-				var findMax = function(names) {
-					var max = 0;
-					var maxI = 0;
-					for (var i = 0; i < names.length; i++) {
+				findMax = function(names) {
+					max = 0;
+					maxI = 0;
+					for (i = 0; i < names.length; i++) {
 						if (names[i].length > max) {
 							max = names[i].length;
 							maxI = i;
@@ -262,25 +252,21 @@ $.extend(Datepicker.prototype, {
 					return maxI;
 				};
 				date.setMonth(findMax(this._get(inst, (dateFormat.match(/MM/) ?
-					'monthNames' : 'monthNamesShort'))));
+					"monthNames" : "monthNamesShort"))));
 				date.setDate(findMax(this._get(inst, (dateFormat.match(/DD/) ?
-					'dayNames' : 'dayNamesShort'))) + 20 - date.getDay());
+					"dayNames" : "dayNamesShort"))) + 20 - date.getDay());
 			}
-			inst.input.attr('size', this._formatDate(inst, date).length);
+			inst.input.attr("size", this._formatDate(inst, date).length);
 		}
 	},
 
 	/* Attach an inline date picker to a div. */
 	_inlineDatepicker: function(target, inst) {
 		var divSpan = $(target);
-		if (divSpan.hasClass(this.markerClassName))
+		if (divSpan.hasClass(this.markerClassName)) {
 			return;
-		divSpan.addClass(this.markerClassName).append(inst.dpDiv).
-			bind("setData.datepicker", function(event, key, value){
-				inst.settings[key] = value;
-			}).bind("getData.datepicker", function(event, key){
-				return this._get(inst, key);
-			});
+		}
+		divSpan.addClass(this.markerClassName).append(inst.dpDiv);
 		$.data(target, PROP_NAME, inst);
 		this._setDate(inst, this._getDefaultDate(inst), true);
 		this._updateDatepicker(inst);
@@ -295,186 +281,219 @@ $.extend(Datepicker.prototype, {
 	},
 
 	/* Pop-up the date picker in a "dialog" box.
-	   @param  input     element - ignored
-	   @param  date      string or Date - the initial date to display
-	   @param  onSelect  function - the function to call when a date is selected
-	   @param  settings  object - update the dialog date picker instance's settings (anonymous object)
-	   @param  pos       int[2] - coordinates for the dialog's position within the screen or
-	                     event - with x/y coordinates or
-	                     leave empty for default (screen centre)
-	   @return the manager object */
+	 * @param  input element - ignored
+	 * @param  date	string or Date - the initial date to display
+	 * @param  onSelect  function - the function to call when a date is selected
+	 * @param  settings  object - update the dialog date picker instance's settings (anonymous object)
+	 * @param  pos int[2] - coordinates for the dialog's position within the screen or
+	 *					event - with x/y coordinates or
+	 *					leave empty for default (screen centre)
+	 * @return the manager object
+	 */
 	_dialogDatepicker: function(input, date, onSelect, settings, pos) {
-		var inst = this._dialogInst; // internal instance
+		var id, browserWidth, browserHeight, scrollX, scrollY,
+			inst = this._dialogInst; // internal instance
+
 		if (!inst) {
 			this.uuid += 1;
-			var id = 'dp' + this.uuid;
-			this._dialogInput = $('<input type="text" id="' + id +
-				'" style="position: absolute; top: -100px; width: 0px;"/>');
+			id = "dp" + this.uuid;
+			this._dialogInput = $("<input type='text' id='" + id +
+				"' style='position: absolute; top: -100px; width: 0px;'/>");
 			this._dialogInput.keydown(this._doKeyDown);
-			$('body').append(this._dialogInput);
+			$("body").append(this._dialogInput);
 			inst = this._dialogInst = this._newInst(this._dialogInput, false);
 			inst.settings = {};
 			$.data(this._dialogInput[0], PROP_NAME, inst);
 		}
 		extendRemove(inst.settings, settings || {});
-		date = (date && date.constructor == Date ? this._formatDate(inst, date) : date);
+		date = (date && date.constructor === Date ? this._formatDate(inst, date) : date);
 		this._dialogInput.val(date);
 
 		this._pos = (pos ? (pos.length ? pos : [pos.pageX, pos.pageY]) : null);
 		if (!this._pos) {
-			var browserWidth = document.documentElement.clientWidth;
-			var browserHeight = document.documentElement.clientHeight;
-			var scrollX = document.documentElement.scrollLeft || document.body.scrollLeft;
-			var scrollY = document.documentElement.scrollTop || document.body.scrollTop;
+			browserWidth = document.documentElement.clientWidth;
+			browserHeight = document.documentElement.clientHeight;
+			scrollX = document.documentElement.scrollLeft || document.body.scrollLeft;
+			scrollY = document.documentElement.scrollTop || document.body.scrollTop;
 			this._pos = // should use actual width/height below
 				[(browserWidth / 2) - 100 + scrollX, (browserHeight / 2) - 150 + scrollY];
 		}
 
 		// move input on screen for focus, but hidden behind dialog
-		this._dialogInput.css('left', (this._pos[0] + 20) + 'px').css('top', this._pos[1] + 'px');
+		this._dialogInput.css("left", (this._pos[0] + 20) + "px").css("top", this._pos[1] + "px");
 		inst.settings.onSelect = onSelect;
 		this._inDialog = true;
 		this.dpDiv.addClass(this._dialogClass);
 		this._showDatepicker(this._dialogInput[0]);
-		if ($.blockUI)
+		if ($.blockUI) {
 			$.blockUI(this.dpDiv);
+		}
 		$.data(this._dialogInput[0], PROP_NAME, inst);
 		return this;
 	},
 
 	/* Detach a datepicker from its control.
-	   @param  target    element - the target input field or division or span */
+	 * @param  target	element - the target input field or division or span
+	 */
 	_destroyDatepicker: function(target) {
-		var $target = $(target);
-		var inst = $.data(target, PROP_NAME);
+		var nodeName,
+			$target = $(target),
+			inst = $.data(target, PROP_NAME);
+
 		if (!$target.hasClass(this.markerClassName)) {
 			return;
 		}
-		var nodeName = target.nodeName.toLowerCase();
+
+		nodeName = target.nodeName.toLowerCase();
 		$.removeData(target, PROP_NAME);
-		if (nodeName == 'input') {
+		if (nodeName === "input") {
 			inst.append.remove();
 			inst.trigger.remove();
 			$target.removeClass(this.markerClassName).
-				unbind('focus', this._showDatepicker).
-				unbind('keydown', this._doKeyDown).
-				unbind('keypress', this._doKeyPress).
-				unbind('keyup', this._doKeyUp);
-		} else if (nodeName == 'div' || nodeName == 'span')
+				unbind("focus", this._showDatepicker).
+				unbind("keydown", this._doKeyDown).
+				unbind("keypress", this._doKeyPress).
+				unbind("keyup", this._doKeyUp);
+		} else if (nodeName === "div" || nodeName === "span") {
 			$target.removeClass(this.markerClassName).empty();
+		}
 	},
 
 	/* Enable the date picker to a jQuery selection.
-	   @param  target    element - the target input field or division or span */
+	 * @param  target	element - the target input field or division or span
+	 */
 	_enableDatepicker: function(target) {
-		var $target = $(target);
-		var inst = $.data(target, PROP_NAME);
+		var nodeName, inline,
+			$target = $(target),
+			inst = $.data(target, PROP_NAME);
+
 		if (!$target.hasClass(this.markerClassName)) {
 			return;
 		}
-		var nodeName = target.nodeName.toLowerCase();
-		if (nodeName == 'input') {
+
+		nodeName = target.nodeName.toLowerCase();
+		if (nodeName === "input") {
 			target.disabled = false;
-			inst.trigger.filter('button').
+			inst.trigger.filter("button").
 				each(function() { this.disabled = false; }).end().
-				filter('img').css({opacity: '1.0', cursor: ''});
-		}
-		else if (nodeName == 'div' || nodeName == 'span') {
-			var inline = $target.children('.' + this._inlineClass);
-			inline.children().removeClass('ui-state-disabled');
+				filter("img").css({opacity: "1.0", cursor: ""});
+		} else if (nodeName === "div" || nodeName === "span") {
+			inline = $target.children("." + this._inlineClass);
+			inline.children().removeClass("ui-state-disabled");
 			inline.find("select.ui-datepicker-month, select.ui-datepicker-year").
 				prop("disabled", false);
 		}
 		this._disabledInputs = $.map(this._disabledInputs,
-			function(value) { return (value == target ? null : value); }); // delete entry
+			function(value) { return (value === target ? null : value); }); // delete entry
 	},
 
 	/* Disable the date picker to a jQuery selection.
-	   @param  target    element - the target input field or division or span */
+	 * @param  target	element - the target input field or division or span
+	 */
 	_disableDatepicker: function(target) {
-		var $target = $(target);
-		var inst = $.data(target, PROP_NAME);
+		var nodeName, inline,
+			$target = $(target),
+			inst = $.data(target, PROP_NAME);
+
 		if (!$target.hasClass(this.markerClassName)) {
 			return;
 		}
-		var nodeName = target.nodeName.toLowerCase();
-		if (nodeName == 'input') {
+
+		nodeName = target.nodeName.toLowerCase();
+		if (nodeName === "input") {
 			target.disabled = true;
-			inst.trigger.filter('button').
+			inst.trigger.filter("button").
 				each(function() { this.disabled = true; }).end().
-				filter('img').css({opacity: '0.5', cursor: 'default'});
-		}
-		else if (nodeName == 'div' || nodeName == 'span') {
-			var inline = $target.children('.' + this._inlineClass);
-			inline.children().addClass('ui-state-disabled');
+				filter("img").css({opacity: "0.5", cursor: "default"});
+		} else if (nodeName === "div" || nodeName === "span") {
+			inline = $target.children("." + this._inlineClass);
+			inline.children().addClass("ui-state-disabled");
 			inline.find("select.ui-datepicker-month, select.ui-datepicker-year").
 				prop("disabled", true);
 		}
 		this._disabledInputs = $.map(this._disabledInputs,
-			function(value) { return (value == target ? null : value); }); // delete entry
+			function(value) { return (value === target ? null : value); }); // delete entry
 		this._disabledInputs[this._disabledInputs.length] = target;
 	},
 
 	/* Is the first field in a jQuery collection disabled as a datepicker?
-	   @param  target    element - the target input field or division or span
-	   @return boolean - true if disabled, false if enabled */
+	 * @param  target	element - the target input field or division or span
+	 * @return boolean - true if disabled, false if enabled
+	 */
 	_isDisabledDatepicker: function(target) {
 		if (!target) {
 			return false;
 		}
 		for (var i = 0; i < this._disabledInputs.length; i++) {
-			if (this._disabledInputs[i] == target)
+			if (this._disabledInputs[i] === target) {
 				return true;
+			}
 		}
 		return false;
 	},
 
 	/* Retrieve the instance data for the target control.
-	   @param  target  element - the target input field or division or span
-	   @return  object - the associated instance data
-	   @throws  error if a jQuery problem getting data */
+	 * @param  target  element - the target input field or division or span
+	 * @return  object - the associated instance data
+	 * @throws  error if a jQuery problem getting data
+	 */
 	_getInst: function(target) {
 		try {
 			return $.data(target, PROP_NAME);
 		}
 		catch (err) {
-			throw 'Missing instance data for this datepicker';
+			throw "Missing instance data for this datepicker";
 		}
 	},
 
 	/* Update or retrieve the settings for a date picker attached to an input field or division.
-	   @param  target  element - the target input field or division or span
-	   @param  name    object - the new settings to update or
-	                   string - the name of the setting to change or retrieve,
-	                   when retrieving also 'all' for all instance settings or
-	                   'defaults' for all global defaults
-	   @param  value   any - the new value for the setting
-	                   (omit if above is an object or to retrieve a value) */
+	 * @param  target  element - the target input field or division or span
+	 * @param  name	object - the new settings to update or
+	 *				string - the name of the setting to change or retrieve,
+	 *				when retrieving also "all" for all instance settings or
+	 *				"defaults" for all global defaults
+	 * @param  value   any - the new value for the setting
+	 *				(omit if above is an object or to retrieve a value)
+	 */
 	_optionDatepicker: function(target, name, value) {
-		var inst = this._getInst(target);
-		if (arguments.length == 2 && typeof name == 'string') {
-			return (name == 'defaults' ? $.extend({}, $.datepicker._defaults) :
-				(inst ? (name == 'all' ? $.extend({}, inst.settings) :
+		var settings, date, minDate, maxDate,
+			inst = this._getInst(target);
+
+		if (arguments.length === 2 && typeof name === "string") {
+			return (name === "defaults" ? $.extend({}, $.datepicker._defaults) :
+				(inst ? (name === "all" ? $.extend({}, inst.settings) :
 				this._get(inst, name)) : null));
 		}
-		var settings = name || {};
-		if (typeof name == 'string') {
+
+		settings = name || {};
+		if (typeof name === "string") {
 			settings = {};
 			settings[name] = value;
 		}
+
 		if (inst) {
-			if (this._curInst == inst) {
+			if (this._curInst === inst) {
 				this._hideDatepicker();
 			}
-			var date = this._getDateDatepicker(target, true);
-			var minDate = this._getMinMaxDate(inst, 'min');
-			var maxDate = this._getMinMaxDate(inst, 'max');
+
+			date = this._getDateDatepicker(target, true);
+			minDate = this._getMinMaxDate(inst, "min");
+			maxDate = this._getMinMaxDate(inst, "max");
 			extendRemove(inst.settings, settings);
 			// reformat the old minDate/maxDate values if dateFormat changes and a new minDate/maxDate isn't provided
-			if (minDate !== null && settings['dateFormat'] !== undefined && settings['minDate'] === undefined)
+			if (minDate !== null && settings.dateFormat !== undefined && settings.minDate === undefined) {
 				inst.settings.minDate = this._formatDate(inst, minDate);
-			if (maxDate !== null && settings['dateFormat'] !== undefined && settings['maxDate'] === undefined)
+			}
+			if (maxDate !== null && settings.dateFormat !== undefined && settings.maxDate === undefined) {
 				inst.settings.maxDate = this._formatDate(inst, maxDate);
+			}
+			if ( "disabled" in settings ) {
+				if ( settings.disabled ) {
+					this._disableDatepicker(target);
+				} else {
+					this._enableDatepicker(target);
+				}
+			}
 			this._attachments($(target), inst);
 			this._autoSize(inst);
 			this._setDate(inst, date);
@@ -489,7 +508,8 @@ $.extend(Datepicker.prototype, {
 	},
 
 	/* Redraw the date picker attached to an input field or division.
-	   @param  target  element - the target input field or division or span */
+	 * @param  target  element - the target input field or division or span
+	 */
 	_refreshDatepicker: function(target) {
 		var inst = this._getInst(target);
 		if (inst) {
@@ -498,8 +518,9 @@ $.extend(Datepicker.prototype, {
 	},
 
 	/* Set the dates for a jQuery selection.
-	   @param  target   element - the target input field or division or span
-	   @param  date     Date - the new date */
+	 * @param  target element - the target input field or division or span
+	 * @param  date	Date - the new date
+	 */
 	_setDateDatepicker: function(target, date) {
 		var inst = this._getInst(target);
 		if (inst) {
@@ -510,87 +531,110 @@ $.extend(Datepicker.prototype, {
 	},
 
 	/* Get the date(s) for the first entry in a jQuery selection.
-	   @param  target     element - the target input field or division or span
-	   @param  noDefault  boolean - true if no default date is to be used
-	   @return Date - the current date */
+	 * @param  target element - the target input field or division or span
+	 * @param  noDefault boolean - true if no default date is to be used
+	 * @return Date - the current date
+	 */
 	_getDateDatepicker: function(target, noDefault) {
 		var inst = this._getInst(target);
-		if (inst && !inst.inline)
+		if (inst && !inst.inline) {
 			this._setDateFromField(inst, noDefault);
+		}
 		return (inst ? this._getDate(inst) : null);
 	},
 
 	/* Handle keystrokes. */
 	_doKeyDown: function(event) {
-		var inst = $.datepicker._getInst(event.target);
-		var handled = true;
-		var isRTL = inst.dpDiv.is('.ui-datepicker-rtl');
+		var onSelect, dateStr, sel,
+			inst = $.datepicker._getInst(event.target),
+			handled = true,
+			isRTL = inst.dpDiv.is(".ui-datepicker-rtl");
+
 		inst._keyEvent = true;
-		if ($.datepicker._datepickerShowing)
+		if ($.datepicker._datepickerShowing) {
 			switch (event.keyCode) {
 				case 9: $.datepicker._hideDatepicker();
 						handled = false;
 						break; // hide on tab out
-				case 13: var sel = $('td.' + $.datepicker._dayOverClass + ':not(.' + 
-									$.datepicker._currentClass + ')', inst.dpDiv);
-						if (sel[0])
+				case 13: sel = $("td." + $.datepicker._dayOverClass + ":not(." +
+									$.datepicker._currentClass + ")", inst.dpDiv);
+						if (sel[0]) {
 							$.datepicker._selectDay(event.target, inst.selectedMonth, inst.selectedYear, sel[0]);
-							var onSelect = $.datepicker._get(inst, 'onSelect');
-							if (onSelect) {
-								var dateStr = $.datepicker._formatDate(inst);
+						}
 
-								// trigger custom callback
-								onSelect.apply((inst.input ? inst.input[0] : null), [dateStr, inst]);
-							}
-						else
+						onSelect = $.datepicker._get(inst, "onSelect");
+						if (onSelect) {
+							dateStr = $.datepicker._formatDate(inst);
+
+							// trigger custom callback
+							onSelect.apply((inst.input ? inst.input[0] : null), [dateStr, inst]);
+						} else {
 							$.datepicker._hideDatepicker();
+						}
+
 						return false; // don't submit the form
-						break; // select the value on enter
 				case 27: $.datepicker._hideDatepicker();
 						break; // hide on escape
 				case 33: $.datepicker._adjustDate(event.target, (event.ctrlKey ?
-							-$.datepicker._get(inst, 'stepBigMonths') :
-							-$.datepicker._get(inst, 'stepMonths')), 'M');
+							-$.datepicker._get(inst, "stepBigMonths") :
+							-$.datepicker._get(inst, "stepMonths")), "M");
 						break; // previous month/year on page up/+ ctrl
 				case 34: $.datepicker._adjustDate(event.target, (event.ctrlKey ?
-							+$.datepicker._get(inst, 'stepBigMonths') :
-							+$.datepicker._get(inst, 'stepMonths')), 'M');
+							+$.datepicker._get(inst, "stepBigMonths") :
+							+$.datepicker._get(inst, "stepMonths")), "M");
 						break; // next month/year on page down/+ ctrl
-				case 35: if (event.ctrlKey || event.metaKey) $.datepicker._clearDate(event.target);
+				case 35: if (event.ctrlKey || event.metaKey) {
+							$.datepicker._clearDate(event.target);
+						}
 						handled = event.ctrlKey || event.metaKey;
 						break; // clear on ctrl or command +end
-				case 36: if (event.ctrlKey || event.metaKey) $.datepicker._gotoToday(event.target);
+				case 36: if (event.ctrlKey || event.metaKey) {
+							$.datepicker._gotoToday(event.target);
+						}
 						handled = event.ctrlKey || event.metaKey;
 						break; // current on ctrl or command +home
-				case 37: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, (isRTL ? +1 : -1), 'D');
+				case 37: if (event.ctrlKey || event.metaKey) {
+							$.datepicker._adjustDate(event.target, (isRTL ? +1 : -1), "D");
+						}
 						handled = event.ctrlKey || event.metaKey;
 						// -1 day on ctrl or command +left
-						if (event.originalEvent.altKey) $.datepicker._adjustDate(event.target, (event.ctrlKey ?
-									-$.datepicker._get(inst, 'stepBigMonths') :
-									-$.datepicker._get(inst, 'stepMonths')), 'M');
+						if (event.originalEvent.altKey) {
+							$.datepicker._adjustDate(event.target, (event.ctrlKey ?
+								-$.datepicker._get(inst, "stepBigMonths") :
+								-$.datepicker._get(inst, "stepMonths")), "M");
+						}
 						// next month/year on alt +left on Mac
 						break;
-				case 38: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, -7, 'D');
+				case 38: if (event.ctrlKey || event.metaKey) {
+							$.datepicker._adjustDate(event.target, -7, "D");
+						}
 						handled = event.ctrlKey || event.metaKey;
 						break; // -1 week on ctrl or command +up
-				case 39: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, (isRTL ? -1 : +1), 'D');
+				case 39: if (event.ctrlKey || event.metaKey) {
+							$.datepicker._adjustDate(event.target, (isRTL ? -1 : +1), "D");
+						}
 						handled = event.ctrlKey || event.metaKey;
 						// +1 day on ctrl or command +right
-						if (event.originalEvent.altKey) $.datepicker._adjustDate(event.target, (event.ctrlKey ?
-									+$.datepicker._get(inst, 'stepBigMonths') :
-									+$.datepicker._get(inst, 'stepMonths')), 'M');
+						if (event.originalEvent.altKey) {
+							$.datepicker._adjustDate(event.target, (event.ctrlKey ?
+								+$.datepicker._get(inst, "stepBigMonths") :
+								+$.datepicker._get(inst, "stepMonths")), "M");
+						}
 						// next month/year on alt +right
 						break;
-				case 40: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, +7, 'D');
+				case 40: if (event.ctrlKey || event.metaKey) {
+							$.datepicker._adjustDate(event.target, +7, "D");
+						}
 						handled = event.ctrlKey || event.metaKey;
 						break; // +1 week on ctrl or command +down
 				default: handled = false;
 			}
-		else if (event.keyCode == 36 && event.ctrlKey) // display the date picker on ctrl+home
+		} else if (event.keyCode === 36 && event.ctrlKey) { // display the date picker on ctrl+home
 			$.datepicker._showDatepicker(this);
-		else {
+		} else {
 			handled = false;
 		}
+
 		if (handled) {
 			event.preventDefault();
 			event.stopPropagation();
@@ -599,22 +643,27 @@ $.extend(Datepicker.prototype, {
 
 	/* Filter entered characters - based on date format. */
 	_doKeyPress: function(event) {
-		var inst = $.datepicker._getInst(event.target);
-		if ($.datepicker._get(inst, 'constrainInput')) {
-			var chars = $.datepicker._possibleChars($.datepicker._get(inst, 'dateFormat'));
-			var chr = String.fromCharCode(event.charCode == undefined ? event.keyCode : event.charCode);
-			return event.ctrlKey || event.metaKey || (chr < ' ' || !chars || chars.indexOf(chr) > -1);
+		var chars, chr,
+			inst = $.datepicker._getInst(event.target);
+
+		if ($.datepicker._get(inst, "constrainInput")) {
+			chars = $.datepicker._possibleChars($.datepicker._get(inst, "dateFormat"));
+			chr = String.fromCharCode(event.charCode == null ? event.keyCode : event.charCode);
+			return event.ctrlKey || event.metaKey || (chr < " " || !chars || chars.indexOf(chr) > -1);
 		}
 	},
 
 	/* Synchronise manual entry and field/alternate field. */
 	_doKeyUp: function(event) {
-		var inst = $.datepicker._getInst(event.target);
-		if (inst.input.val() != inst.lastVal) {
+		var date,
+			inst = $.datepicker._getInst(event.target);
+
+		if (inst.input.val() !== inst.lastVal) {
 			try {
-				var date = $.datepicker.parseDate($.datepicker._get(inst, 'dateFormat'),
+				date = $.datepicker.parseDate($.datepicker._get(inst, "dateFormat"),
 					(inst.input ? inst.input.val() : null),
 					$.datepicker._getFormatConfig(inst));
+
 				if (date) { // only if valid
 					$.datepicker._setDateFromField(inst);
 					$.datepicker._updateAlternate(inst);
@@ -622,86 +671,91 @@ $.extend(Datepicker.prototype, {
 				}
 			}
 			catch (err) {
-				$.datepicker.log(err);
 			}
 		}
 		return true;
 	},
 
 	/* Pop-up the date picker for a given input field.
-	   If false returned from beforeShow event handler do not show. 
-	   @param  input  element - the input field attached to the date picker or
-	                  event - if triggered by focus */
+	 * If false returned from beforeShow event handler do not show.
+	 * @param  input  element - the input field attached to the date picker or
+	 *					event - if triggered by focus
+	 */
 	_showDatepicker: function(input) {
 		input = input.target || input;
-		if (input.nodeName.toLowerCase() != 'input') // find from button/image trigger
-			input = $('input', input.parentNode)[0];
-		if ($.datepicker._isDisabledDatepicker(input) || $.datepicker._lastInput == input) // already here
+		if (input.nodeName.toLowerCase() !== "input") { // find from button/image trigger
+			input = $("input", input.parentNode)[0];
+		}
+
+		if ($.datepicker._isDisabledDatepicker(input) || $.datepicker._lastInput === input) { // already here
 			return;
-		var inst = $.datepicker._getInst(input);
-		if ($.datepicker._curInst && $.datepicker._curInst != inst) {
+		}
+
+		var inst, beforeShow, beforeShowSettings, isFixed,
+			offset, showAnim, duration;
+
+		inst = $.datepicker._getInst(input);
+		if ($.datepicker._curInst && $.datepicker._curInst !== inst) {
 			$.datepicker._curInst.dpDiv.stop(true, true);
 			if ( inst && $.datepicker._datepickerShowing ) {
 				$.datepicker._hideDatepicker( $.datepicker._curInst.input[0] );
 			}
 		}
-		var beforeShow = $.datepicker._get(inst, 'beforeShow');
-		var beforeShowSettings = beforeShow ? beforeShow.apply(input, [input, inst]) : {};
+
+		beforeShow = $.datepicker._get(inst, "beforeShow");
+		beforeShowSettings = beforeShow ? beforeShow.apply(input, [input, inst]) : {};
 		if(beforeShowSettings === false){
-			//false
 			return;
 		}
 		extendRemove(inst.settings, beforeShowSettings);
+
 		inst.lastVal = null;
 		$.datepicker._lastInput = input;
 		$.datepicker._setDateFromField(inst);
-		if ($.datepicker._inDialog) // hide cursor
-			input.value = '';
+
+		if ($.datepicker._inDialog) { // hide cursor
+			input.value = "";
+		}
 		if (!$.datepicker._pos) { // position below input
 			$.datepicker._pos = $.datepicker._findPos(input);
 			$.datepicker._pos[1] += input.offsetHeight; // add the height
 		}
-		var isFixed = false;
+
+		isFixed = false;
 		$(input).parents().each(function() {
-			isFixed |= $(this).css('position') == 'fixed';
+			isFixed |= $(this).css("position") === "fixed";
 			return !isFixed;
 		});
-		var offset = {left: $.datepicker._pos[0], top: $.datepicker._pos[1]};
+
+		offset = {left: $.datepicker._pos[0], top: $.datepicker._pos[1]};
 		$.datepicker._pos = null;
 		//to avoid flashes on Firefox
 		inst.dpDiv.empty();
 		// determine sizing offscreen
-		inst.dpDiv.css({position: 'absolute', display: 'block', top: '-1000px'});
+		inst.dpDiv.css({position: "absolute", display: "block", top: "-1000px"});
 		$.datepicker._updateDatepicker(inst);
 		// fix width for dynamic number of date pickers
 		// and adjust position before showing
 		offset = $.datepicker._checkOffset(inst, offset, isFixed);
 		inst.dpDiv.css({position: ($.datepicker._inDialog && $.blockUI ?
-			'static' : (isFixed ? 'fixed' : 'absolute')), display: 'none',
-			left: offset.left + 'px', top: offset.top + 'px'});
+			"static" : (isFixed ? "fixed" : "absolute")), display: "none",
+			left: offset.left + "px", top: offset.top + "px"});
+
 		if (!inst.inline) {
-			var showAnim = $.datepicker._get(inst, 'showAnim');
-			var duration = $.datepicker._get(inst, 'duration');
-			var postProcess = function() {
-				var cover = inst.dpDiv.find('iframe.ui-datepicker-cover'); // IE6- only
-				if( !! cover.length ){
-					var borders = $.datepicker._getBorders(inst.dpDiv);
-					cover.css({left: -borders[0], top: -borders[1],
-						width: inst.dpDiv.outerWidth(), height: inst.dpDiv.outerHeight()});
-				}
-			};
+			showAnim = $.datepicker._get(inst, "showAnim");
+			duration = $.datepicker._get(inst, "duration");
 			inst.dpDiv.zIndex($(input).zIndex()+1);
 			$.datepicker._datepickerShowing = true;
 
-			// DEPRECATED: after BC for 1.8.x $.effects[ showAnim ] is not needed
-			if ( $.effects && ( $.effects.effect[ showAnim ] || $.effects[ showAnim ] ) )
-				inst.dpDiv.show(showAnim, $.datepicker._get(inst, 'showOptions'), duration, postProcess);
-			else
-				inst.dpDiv[showAnim || 'show']((showAnim ? duration : null), postProcess);
-			if (!showAnim || !duration)
-				postProcess();
-			if (inst.input.is(':visible') && !inst.input.is(':disabled'))
+			if ( $.effects && $.effects.effect[ showAnim ] ) {
+				inst.dpDiv.show(showAnim, $.datepicker._get(inst, "showOptions"), duration);
+			} else {
+				inst.dpDiv[showAnim || "show"](showAnim ? duration : null);
+			}
+
+			if (inst.input.is(":visible") && !inst.input.is(":disabled")) {
 				inst.input.focus();
+			}
 			$.datepicker._curInst = inst;
 		}
 	},
@@ -709,37 +763,39 @@ $.extend(Datepicker.prototype, {
 	/* Generate the date picker content. */
 	_updateDatepicker: function(inst) {
 		this.maxRows = 4; //Reset the max number of rows being displayed (see #7043)
-		var borders = $.datepicker._getBorders(inst.dpDiv);
 		instActive = inst; // for delegate hover events
 		inst.dpDiv.empty().append(this._generateHTML(inst));
 		this._attachHandlers(inst);
-		var cover = inst.dpDiv.find('iframe.ui-datepicker-cover'); // IE6- only
-		if( !!cover.length ){ //avoid call to outerXXXX() when not in IE6
-			cover.css({left: -borders[0], top: -borders[1], width: inst.dpDiv.outerWidth(), height: inst.dpDiv.outerHeight()})
-		}
-		inst.dpDiv.find('.' + this._dayOverClass + ' a').mouseover();
-		var numMonths = this._getNumberOfMonths(inst);
-		var cols = numMonths[1];
-		var width = 17;
-		inst.dpDiv.removeClass('ui-datepicker-multi-2 ui-datepicker-multi-3 ui-datepicker-multi-4').width('');
-		if (cols > 1)
-			inst.dpDiv.addClass('ui-datepicker-multi-' + cols).css('width', (width * cols) + 'em');
-		inst.dpDiv[(numMonths[0] != 1 || numMonths[1] != 1 ? 'add' : 'remove') +
-			'Class']('ui-datepicker-multi');
-		inst.dpDiv[(this._get(inst, 'isRTL') ? 'add' : 'remove') +
-			'Class']('ui-datepicker-rtl');
-		if (inst == $.datepicker._curInst && $.datepicker._datepickerShowing && inst.input &&
-				// #6694 - don't focus the input if it's already focused
-				// this breaks the change event in IE
-				inst.input.is(':visible') && !inst.input.is(':disabled') && inst.input[0] != document.activeElement)
+		inst.dpDiv.find("." + this._dayOverClass + " a").mouseover();
+
+		var origyearshtml,
+			numMonths = this._getNumberOfMonths(inst),
+			cols = numMonths[1],
+			width = 17;
+
+		inst.dpDiv.removeClass("ui-datepicker-multi-2 ui-datepicker-multi-3 ui-datepicker-multi-4").width("");
+		if (cols > 1) {
+			inst.dpDiv.addClass("ui-datepicker-multi-" + cols).css("width", (width * cols) + "em");
+		}
+		inst.dpDiv[(numMonths[0] !== 1 || numMonths[1] !== 1 ? "add" : "remove") +
+			"Class"]("ui-datepicker-multi");
+		inst.dpDiv[(this._get(inst, "isRTL") ? "add" : "remove") +
+			"Class"]("ui-datepicker-rtl");
+
+		// #6694 - don't focus the input if it's already focused
+		// this breaks the change event in IE
+		if (inst === $.datepicker._curInst && $.datepicker._datepickerShowing && inst.input &&
+			inst.input.is(":visible") && !inst.input.is(":disabled") && inst.input[0] !== document.activeElement) {
 			inst.input.focus();
-		// deffered render of the years select (to avoid flashes on Firefox) 
+		}
+
+		// deffered render of the years select (to avoid flashes on Firefox)
 		if( inst.yearshtml ){
-			var origyearshtml = inst.yearshtml;
+			origyearshtml = inst.yearshtml;
 			setTimeout(function(){
 				//assure that inst.yearshtml didn't change.
 				if( origyearshtml === inst.yearshtml && inst.yearshtml ){
-					inst.dpDiv.find('select.ui-datepicker-year:first').replaceWith(inst.yearshtml);
+					inst.dpDiv.find("select.ui-datepicker-year:first").replaceWith(inst.yearshtml);
 				}
 				origyearshtml = inst.yearshtml = null;
 			}, 0);
@@ -747,28 +803,29 @@ $.extend(Datepicker.prototype, {
 	},
 
 	/* Retrieve the size of left and top borders for an element.
-	   @param  elem  (jQuery object) the element of interest
-	   @return  (number[2]) the left and top borders */
+	 * @param  elem  (jQuery object) the element of interest
+	 * @return  (number[2]) the left and top borders
+	 */
 	_getBorders: function(elem) {
 		var convert = function(value) {
 			return {thin: 1, medium: 2, thick: 3}[value] || value;
 		};
-		return [parseFloat(convert(elem.css('border-left-width'))),
-			parseFloat(convert(elem.css('border-top-width')))];
+		return [parseFloat(convert(elem.css("border-left-width"))),
+			parseFloat(convert(elem.css("border-top-width")))];
 	},
 
 	/* Check positioning to remain on screen. */
 	_checkOffset: function(inst, offset, isFixed) {
-		var dpWidth = inst.dpDiv.outerWidth();
-		var dpHeight = inst.dpDiv.outerHeight();
-		var inputWidth = inst.input ? inst.input.outerWidth() : 0;
-		var inputHeight = inst.input ? inst.input.outerHeight() : 0;
-		var viewWidth = document.documentElement.clientWidth + (isFixed ? 0 : $(document).scrollLeft());
-		var viewHeight = document.documentElement.clientHeight + (isFixed ? 0 : $(document).scrollTop());
+		var dpWidth = inst.dpDiv.outerWidth(),
+			dpHeight = inst.dpDiv.outerHeight(),
+			inputWidth = inst.input ? inst.input.outerWidth() : 0,
+			inputHeight = inst.input ? inst.input.outerHeight() : 0,
+			viewWidth = document.documentElement.clientWidth + (isFixed ? 0 : $(document).scrollLeft()),
+			viewHeight = document.documentElement.clientHeight + (isFixed ? 0 : $(document).scrollTop());
 
-		offset.left -= (this._get(inst, 'isRTL') ? (dpWidth - inputWidth) : 0);
-		offset.left -= (isFixed && offset.left == inst.input.offset().left) ? $(document).scrollLeft() : 0;
-		offset.top -= (isFixed && offset.top == (inst.input.offset().top + inputHeight)) ? $(document).scrollTop() : 0;
+		offset.left -= (this._get(inst, "isRTL") ? (dpWidth - inputWidth) : 0);
+		offset.left -= (isFixed && offset.left === inst.input.offset().left) ? $(document).scrollLeft() : 0;
+		offset.top -= (isFixed && offset.top === (inst.input.offset().top + inputHeight)) ? $(document).scrollTop() : 0;
 
 		// now check if datepicker is showing outside window viewport - move to a better place if so.
 		offset.left -= Math.min(offset.left, (offset.left + dpWidth > viewWidth && viewWidth > dpWidth) ?
@@ -781,47 +838,60 @@ $.extend(Datepicker.prototype, {
 
 	/* Find an object's position on the screen. */
 	_findPos: function(obj) {
-		var inst = this._getInst(obj);
-		var isRTL = this._get(inst, 'isRTL');
-		while (obj && (obj.type == 'hidden' || obj.nodeType != 1 || $.expr.filters.hidden(obj))) {
-			obj = obj[isRTL ? 'previousSibling' : 'nextSibling'];
+		var position,
+			inst = this._getInst(obj),
+			isRTL = this._get(inst, "isRTL");
+
+		while (obj && (obj.type === "hidden" || obj.nodeType !== 1 || $.expr.filters.hidden(obj))) {
+			obj = obj[isRTL ? "previousSibling" : "nextSibling"];
 		}
-		var position = $(obj).offset();
+
+		position = $(obj).offset();
 		return [position.left, position.top];
 	},
 
 	/* Hide the date picker from view.
-	   @param  input  element - the input field attached to the date picker */
+	 * @param  input  element - the input field attached to the date picker
+	 */
 	_hideDatepicker: function(input) {
-		var inst = this._curInst;
-		if (!inst || (input && inst != $.data(input, PROP_NAME)))
+		var showAnim, duration, postProcess, onClose,
+			inst = this._curInst;
+
+		if (!inst || (input && inst !== $.data(input, PROP_NAME))) {
 			return;
+		}
+
 		if (this._datepickerShowing) {
-			var showAnim = this._get(inst, 'showAnim');
-			var duration = this._get(inst, 'duration');
-			var postProcess = function() {
+			showAnim = this._get(inst, "showAnim");
+			duration = this._get(inst, "duration");
+			postProcess = function() {
 				$.datepicker._tidyDialog(inst);
 			};
 
 			// DEPRECATED: after BC for 1.8.x $.effects[ showAnim ] is not needed
-			if ( $.effects && ( $.effects.effect[ showAnim ] || $.effects[ showAnim ] ) )
-				inst.dpDiv.hide(showAnim, $.datepicker._get(inst, 'showOptions'), duration, postProcess);
-			else
-				inst.dpDiv[(showAnim == 'slideDown' ? 'slideUp' :
-					(showAnim == 'fadeIn' ? 'fadeOut' : 'hide'))]((showAnim ? duration : null), postProcess);
-			if (!showAnim)
+			if ( $.effects && ( $.effects.effect[ showAnim ] || $.effects[ showAnim ] ) ) {
+				inst.dpDiv.hide(showAnim, $.datepicker._get(inst, "showOptions"), duration, postProcess);
+			} else {
+				inst.dpDiv[(showAnim === "slideDown" ? "slideUp" :
+					(showAnim === "fadeIn" ? "fadeOut" : "hide"))]((showAnim ? duration : null), postProcess);
+			}
+
+			if (!showAnim) {
 				postProcess();
+			}
 			this._datepickerShowing = false;
-			var onClose = this._get(inst, 'onClose');
-			if (onClose)
-				onClose.apply((inst.input ? inst.input[0] : null),
-					[(inst.input ? inst.input.val() : ''), inst]);
+
+			onClose = this._get(inst, "onClose");
+			if (onClose) {
+				onClose.apply((inst.input ? inst.input[0] : null), [(inst.input ? inst.input.val() : ""), inst]);
+			}
+
 			this._lastInput = null;
 			if (this._inDialog) {
-				this._dialogInput.css({ position: 'absolute', left: '0', top: '-100px' });
+				this._dialogInput.css({ position: "absolute", left: "0", top: "-100px" });
 				if ($.blockUI) {
 					$.unblockUI();
-					$('body').append(this.dpDiv);
+					$("body").append(this.dpDiv);
 				}
 			}
 			this._inDialog = false;
@@ -830,50 +900,54 @@ $.extend(Datepicker.prototype, {
 
 	/* Tidy up after a dialog display. */
 	_tidyDialog: function(inst) {
-		inst.dpDiv.removeClass(this._dialogClass).unbind('.ui-datepicker-calendar');
+		inst.dpDiv.removeClass(this._dialogClass).unbind(".ui-datepicker-calendar");
 	},
 
 	/* Close date picker if clicked elsewhere. */
 	_checkExternalClick: function(event) {
-		if (!$.datepicker._curInst)
+		if (!$.datepicker._curInst) {
 			return;
+		}
 
 		var $target = $(event.target),
 			inst = $.datepicker._getInst($target[0]);
 
-		if ( ( ( $target[0].id != $.datepicker._mainDivId &&
-				$target.parents('#' + $.datepicker._mainDivId).length == 0 &&
+		if ( ( ( $target[0].id !== $.datepicker._mainDivId &&
+				$target.parents("#" + $.datepicker._mainDivId).length === 0 &&
 				!$target.hasClass($.datepicker.markerClassName) &&
 				!$target.closest("." + $.datepicker._triggerClass).length &&
 				$.datepicker._datepickerShowing && !($.datepicker._inDialog && $.blockUI) ) ) ||
-			( $target.hasClass($.datepicker.markerClassName) && $.datepicker._curInst != inst ) )
-			$.datepicker._hideDatepicker();
+			( $target.hasClass($.datepicker.markerClassName) && $.datepicker._curInst !== inst ) ) {
+				$.datepicker._hideDatepicker();
+		}
 	},
 
 	/* Adjust one of the date sub-fields. */
 	_adjustDate: function(id, offset, period) {
-		var target = $(id);
-		var inst = this._getInst(target[0]);
+		var target = $(id),
+			inst = this._getInst(target[0]);
+
 		if (this._isDisabledDatepicker(target[0])) {
 			return;
 		}
 		this._adjustInstDate(inst, offset +
-			(period == 'M' ? this._get(inst, 'showCurrentAtPos') : 0), // undo positioning
+			(period === "M" ? this._get(inst, "showCurrentAtPos") : 0), // undo positioning
 			period);
 		this._updateDatepicker(inst);
 	},
 
 	/* Action for current link. */
 	_gotoToday: function(id) {
-		var target = $(id);
-		var inst = this._getInst(target[0]);
-		if (this._get(inst, 'gotoCurrent') && inst.currentDay) {
+		var date,
+			target = $(id),
+			inst = this._getInst(target[0]);
+
+		if (this._get(inst, "gotoCurrent") && inst.currentDay) {
 			inst.selectedDay = inst.currentDay;
 			inst.drawMonth = inst.selectedMonth = inst.currentMonth;
 			inst.drawYear = inst.selectedYear = inst.currentYear;
-		}
-		else {
-			var date = new Date();
+		} else {
+			date = new Date();
 			inst.selectedDay = date.getDate();
 			inst.drawMonth = inst.selectedMonth = date.getMonth();
 			inst.drawYear = inst.selectedYear = date.getFullYear();
@@ -884,23 +958,28 @@ $.extend(Datepicker.prototype, {
 
 	/* Action for selecting a new month/year. */
 	_selectMonthYear: function(id, select, period) {
-		var target = $(id);
-		var inst = this._getInst(target[0]);
-		inst['selected' + (period == 'M' ? 'Month' : 'Year')] =
-		inst['draw' + (period == 'M' ? 'Month' : 'Year')] =
+		var target = $(id),
+			inst = this._getInst(target[0]);
+
+		inst["selected" + (period === "M" ? "Month" : "Year")] =
+		inst["draw" + (period === "M" ? "Month" : "Year")] =
 			parseInt(select.options[select.selectedIndex].value,10);
+
 		this._notifyChange(inst);
 		this._adjustDate(target);
 	},
 
 	/* Action for selecting a day. */
 	_selectDay: function(id, month, year, td) {
-		var target = $(id);
+		var inst,
+			target = $(id);
+
 		if ($(td).hasClass(this._unselectableClass) || this._isDisabledDatepicker(target[0])) {
 			return;
 		}
-		var inst = this._getInst(target[0]);
-		inst.selectedDay = inst.currentDay = $('a', td).html();
+
+		inst = this._getInst(target[0]);
+		inst.selectedDay = inst.currentDay = $("a", td).html();
 		inst.selectedMonth = inst.currentMonth = month;
 		inst.selectedYear = inst.currentYear = year;
 		this._selectDate(id, this._formatDate(inst,
@@ -910,372 +989,427 @@ $.extend(Datepicker.prototype, {
 	/* Erase the input field and hide the date picker. */
 	_clearDate: function(id) {
 		var target = $(id);
-		var inst = this._getInst(target[0]);
-		this._selectDate(target, '');
+		this._selectDate(target, "");
 	},
 
 	/* Update the input field with the selected date. */
 	_selectDate: function(id, dateStr) {
-		var target = $(id);
-		var inst = this._getInst(target[0]);
+		var onSelect,
+			target = $(id),
+			inst = this._getInst(target[0]);
+
 		dateStr = (dateStr != null ? dateStr : this._formatDate(inst));
-		if (inst.input)
+		if (inst.input) {
 			inst.input.val(dateStr);
+		}
 		this._updateAlternate(inst);
-		var onSelect = this._get(inst, 'onSelect');
-		if (onSelect)
+
+		onSelect = this._get(inst, "onSelect");
+		if (onSelect) {
 			onSelect.apply((inst.input ? inst.input[0] : null), [dateStr, inst]);  // trigger custom callback
-		else if (inst.input)
-			inst.input.trigger('change'); // fire the change event
-		if (inst.inline)
+		} else if (inst.input) {
+			inst.input.trigger("change"); // fire the change event
+		}
+
+		if (inst.inline){
 			this._updateDatepicker(inst);
-		else {
+		} else {
 			this._hideDatepicker();
 			this._lastInput = inst.input[0];
-			if (typeof(inst.input[0]) != 'object')
+			if (typeof(inst.input[0]) !== "object") {
 				inst.input.focus(); // restore focus
+			}
 			this._lastInput = null;
 		}
 	},
 
 	/* Update any alternate field to synchronise with the main field. */
 	_updateAlternate: function(inst) {
-		var altField = this._get(inst, 'altField');
+		var altFormat, date, dateStr,
+			altField = this._get(inst, "altField");
+
 		if (altField) { // update alternate field too
-			var altFormat = this._get(inst, 'altFormat') || this._get(inst, 'dateFormat');
-			var date = this._getDate(inst);
-			var dateStr = this.formatDate(altFormat, date, this._getFormatConfig(inst));
+			altFormat = this._get(inst, "altFormat") || this._get(inst, "dateFormat");
+			date = this._getDate(inst);
+			dateStr = this.formatDate(altFormat, date, this._getFormatConfig(inst));
 			$(altField).each(function() { $(this).val(dateStr); });
 		}
 	},
 
 	/* Set as beforeShowDay function to prevent selection of weekends.
-	   @param  date  Date - the date to customise
-	   @return [boolean, string] - is this date selectable?, what is its CSS class? */
+	 * @param  date  Date - the date to customise
+	 * @return [boolean, string] - is this date selectable?, what is its CSS class?
+	 */
 	noWeekends: function(date) {
 		var day = date.getDay();
-		return [(day > 0 && day < 6), ''];
+		return [(day > 0 && day < 6), ""];
 	},
 
 	/* Set as calculateWeek to determine the week of the year based on the ISO 8601 definition.
-	   @param  date  Date - the date to get the week for
-	   @return  number - the number of the week within the year that contains this date */
+	 * @param  date  Date - the date to get the week for
+	 * @return  number - the number of the week within the year that contains this date
+	 */
 	iso8601Week: function(date) {
-		var checkDate = new Date(date.getTime());
+		var time,
+			checkDate = new Date(date.getTime());
+
 		// Find Thursday of this week starting on Monday
 		checkDate.setDate(checkDate.getDate() + 4 - (checkDate.getDay() || 7));
-		var time = checkDate.getTime();
+
+		time = checkDate.getTime();
 		checkDate.setMonth(0); // Compare with Jan 1
 		checkDate.setDate(1);
 		return Math.floor(Math.round((time - checkDate) / 86400000) / 7) + 1;
 	},
 
 	/* Parse a string value into a date object.
-	   See formatDate below for the possible formats.
-
-	   @param  format    string - the expected format of the date
-	   @param  value     string - the date in the above format
-	   @param  settings  Object - attributes include:
-	                     shortYearCutoff  number - the cutoff year for determining the century (optional)
-	                     dayNamesShort    string[7] - abbreviated names of the days from Sunday (optional)
-	                     dayNames         string[7] - names of the days from Sunday (optional)
-	                     monthNamesShort  string[12] - abbreviated names of the months (optional)
-	                     monthNames       string[12] - names of the months (optional)
-	   @return  Date - the extracted date value or null if value is blank */
+	 * See formatDate below for the possible formats.
+	 *
+	 * @param  format string - the expected format of the date
+	 * @param  value string - the date in the above format
+	 * @param  settings Object - attributes include:
+	 *					shortYearCutoff  number - the cutoff year for determining the century (optional)
+	 *					dayNamesShort	string[7] - abbreviated names of the days from Sunday (optional)
+	 *					dayNames		string[7] - names of the days from Sunday (optional)
+	 *					monthNamesShort string[12] - abbreviated names of the months (optional)
+	 *					monthNames		string[12] - names of the months (optional)
+	 * @return  Date - the extracted date value or null if value is blank
+	 */
 	parseDate: function (format, value, settings) {
-		if (format == null || value == null)
-			throw 'Invalid arguments';
-		value = (typeof value == 'object' ? value.toString() : value + '');
-		if (value == '')
+		if (format == null || value == null) {
+			throw "Invalid arguments";
+		}
+
+		value = (typeof value === "object" ? value.toString() : value + "");
+		if (value === "") {
 			return null;
-		var shortYearCutoff = (settings ? settings.shortYearCutoff : null) || this._defaults.shortYearCutoff;
-		shortYearCutoff = (typeof shortYearCutoff != 'string' ? shortYearCutoff :
-				new Date().getFullYear() % 100 + parseInt(shortYearCutoff, 10));
-		var dayNamesShort = (settings ? settings.dayNamesShort : null) || this._defaults.dayNamesShort;
-		var dayNames = (settings ? settings.dayNames : null) || this._defaults.dayNames;
-		var monthNamesShort = (settings ? settings.monthNamesShort : null) || this._defaults.monthNamesShort;
-		var monthNames = (settings ? settings.monthNames : null) || this._defaults.monthNames;
-		var year = -1;
-		var month = -1;
-		var day = -1;
-		var doy = -1;
-		var literal = false;
-		// Check whether a format character is doubled
-		var lookAhead = function(match) {
-			var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) == match);
-			if (matches)
-				iFormat++;
-			return matches;
-		};
-		// Extract a number from the string value
-		var getNumber = function(match) {
-			var isDoubled = lookAhead(match);
-			var size = (match == '@' ? 14 : (match == '!' ? 20 :
-				(match == 'y' && isDoubled ? 4 : (match == 'o' ? 3 : 2))));
-			var digits = new RegExp('^\\d{1,' + size + '}');
-			var num = value.substring(iValue).match(digits);
-			if (!num)
-				throw 'Missing number at position ' + iValue;
-			iValue += num[0].length;
-			return parseInt(num[0], 10);
-		};
-		// Extract a name from the string value and convert to an index
-		var getName = function(match, shortNames, longNames) {
-			var names = $.map(lookAhead(match) ? longNames : shortNames, function (v, k) {
-				return [ [k, v] ];
-			}).sort(function (a, b) {
-				return -(a[1].length - b[1].length);
-			});
-			var index = -1;
-			$.each(names, function (i, pair) {
-				var name = pair[1];
-				if (value.substr(iValue, name.length).toLowerCase() == name.toLowerCase()) {
-					index = pair[0];
-					iValue += name.length;
-					return false;
+		}
+
+		var iFormat, dim, extra,
+			iValue = 0,
+			shortYearCutoffTemp = (settings ? settings.shortYearCutoff : null) || this._defaults.shortYearCutoff,
+			shortYearCutoff = (typeof shortYearCutoffTemp !== "string" ? shortYearCutoffTemp :
+				new Date().getFullYear() % 100 + parseInt(shortYearCutoffTemp, 10)),
+			dayNamesShort = (settings ? settings.dayNamesShort : null) || this._defaults.dayNamesShort,
+			dayNames = (settings ? settings.dayNames : null) || this._defaults.dayNames,
+			monthNamesShort = (settings ? settings.monthNamesShort : null) || this._defaults.monthNamesShort,
+			monthNames = (settings ? settings.monthNames : null) || this._defaults.monthNames,
+			year = -1,
+			month = -1,
+			day = -1,
+			doy = -1,
+			literal = false,
+			date,
+			// Check whether a format character is doubled
+			lookAhead = function(match) {
+				var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) === match);
+				if (matches) {
+					iFormat++;
 				}
-			});
-			if (index != -1)
-				return index + 1;
-			else
-				throw 'Unknown name at position ' + iValue;
-		};
-		// Confirm that a literal character matches the string value
-		var checkLiteral = function() {
-			if (value.charAt(iValue) != format.charAt(iFormat))
-				throw 'Unexpected literal at position ' + iValue;
-			iValue++;
-		};
-		var iValue = 0;
-		for (var iFormat = 0; iFormat < format.length; iFormat++) {
-			if (literal)
-				if (format.charAt(iFormat) == "'" && !lookAhead("'"))
+				return matches;
+			},
+			// Extract a number from the string value
+			getNumber = function(match) {
+				var isDoubled = lookAhead(match),
+					size = (match === "@" ? 14 : (match === "!" ? 20 :
+					(match === "y" && isDoubled ? 4 : (match === "o" ? 3 : 2)))),
+					digits = new RegExp("^\\d{1," + size + "}"),
+					num = value.substring(iValue).match(digits);
+				if (!num) {
+					throw "Missing number at position " + iValue;
+				}
+				iValue += num[0].length;
+				return parseInt(num[0], 10);
+			},
+			// Extract a name from the string value and convert to an index
+			getName = function(match, shortNames, longNames) {
+				var index = -1,
+					names = $.map(lookAhead(match) ? longNames : shortNames, function (v, k) {
+						return [ [k, v] ];
+					}).sort(function (a, b) {
+						return -(a[1].length - b[1].length);
+					});
+
+				$.each(names, function (i, pair) {
+					var name = pair[1];
+					if (value.substr(iValue, name.length).toLowerCase() === name.toLowerCase()) {
+						index = pair[0];
+						iValue += name.length;
+						return false;
+					}
+				});
+				if (index !== -1) {
+					return index + 1;
+				} else {
+					throw "Unknown name at position " + iValue;
+				}
+			},
+			// Confirm that a literal character matches the string value
+			checkLiteral = function() {
+				if (value.charAt(iValue) !== format.charAt(iFormat)) {
+					throw "Unexpected literal at position " + iValue;
+				}
+				iValue++;
+			};
+
+		for (iFormat = 0; iFormat < format.length; iFormat++) {
+			if (literal) {
+				if (format.charAt(iFormat) === "'" && !lookAhead("'")) {
 					literal = false;
-				else
+				} else {
 					checkLiteral();
-			else
+				}
+			} else {
 				switch (format.charAt(iFormat)) {
-					case 'd':
-						day = getNumber('d');
+					case "d":
+						day = getNumber("d");
 						break;
-					case 'D':
-						getName('D', dayNamesShort, dayNames);
+					case "D":
+						getName("D", dayNamesShort, dayNames);
 						break;
-					case 'o':
-						doy = getNumber('o');
+					case "o":
+						doy = getNumber("o");
 						break;
-					case 'm':
-						month = getNumber('m');
+					case "m":
+						month = getNumber("m");
 						break;
-					case 'M':
-						month = getName('M', monthNamesShort, monthNames);
+					case "M":
+						month = getName("M", monthNamesShort, monthNames);
 						break;
-					case 'y':
-						year = getNumber('y');
+					case "y":
+						year = getNumber("y");
 						break;
-					case '@':
-						var date = new Date(getNumber('@'));
+					case "@":
+						date = new Date(getNumber("@"));
 						year = date.getFullYear();
 						month = date.getMonth() + 1;
 						day = date.getDate();
 						break;
-					case '!':
-						var date = new Date((getNumber('!') - this._ticksTo1970) / 10000);
+					case "!":
+						date = new Date((getNumber("!") - this._ticksTo1970) / 10000);
 						year = date.getFullYear();
 						month = date.getMonth() + 1;
 						day = date.getDate();
 						break;
 					case "'":
-						if (lookAhead("'"))
+						if (lookAhead("'")){
 							checkLiteral();
-						else
+						} else {
 							literal = true;
+						}
 						break;
 					default:
 						checkLiteral();
 				}
+			}
 		}
+
 		if (iValue < value.length){
-			var extra = value.substr(iValue);
+			extra = value.substr(iValue);
 			if (!/^\s+/.test(extra)) {
 				throw "Extra/unparsed characters found in date: " + extra;
 			}
 		}
-		if (year == -1)
+
+		if (year === -1) {
 			year = new Date().getFullYear();
-		else if (year < 100)
+		} else if (year < 100) {
 			year += new Date().getFullYear() - new Date().getFullYear() % 100 +
 				(year <= shortYearCutoff ? 0 : -100);
+		}
+
 		if (doy > -1) {
 			month = 1;
 			day = doy;
 			do {
-				var dim = this._getDaysInMonth(year, month - 1);
-				if (day <= dim)
+				dim = this._getDaysInMonth(year, month - 1);
+				if (day <= dim) {
 					break;
+				}
 				month++;
 				day -= dim;
 			} while (true);
 		}
-		var date = this._daylightSavingAdjust(new Date(year, month - 1, day));
-		if (date.getFullYear() != year || date.getMonth() + 1 != month || date.getDate() != day)
-			throw 'Invalid date'; // E.g. 31/02/00
+
+		date = this._daylightSavingAdjust(new Date(year, month - 1, day));
+		if (date.getFullYear() !== year || date.getMonth() + 1 !== month || date.getDate() !== day) {
+			throw "Invalid date"; // E.g. 31/02/00
+		}
 		return date;
 	},
 
 	/* Standard date formats. */
-	ATOM: 'yy-mm-dd', // RFC 3339 (ISO 8601)
-	COOKIE: 'D, dd M yy',
-	ISO_8601: 'yy-mm-dd',
-	RFC_822: 'D, d M y',
-	RFC_850: 'DD, dd-M-y',
-	RFC_1036: 'D, d M y',
-	RFC_1123: 'D, d M yy',
-	RFC_2822: 'D, d M yy',
-	RSS: 'D, d M y', // RFC 822
-	TICKS: '!',
-	TIMESTAMP: '@',
-	W3C: 'yy-mm-dd', // ISO 8601
+	ATOM: "yy-mm-dd", // RFC 3339 (ISO 8601)
+	COOKIE: "D, dd M yy",
+	ISO_8601: "yy-mm-dd",
+	RFC_822: "D, d M y",
+	RFC_850: "DD, dd-M-y",
+	RFC_1036: "D, d M y",
+	RFC_1123: "D, d M yy",
+	RFC_2822: "D, d M yy",
+	RSS: "D, d M y", // RFC 822
+	TICKS: "!",
+	TIMESTAMP: "@",
+	W3C: "yy-mm-dd", // ISO 8601
 
 	_ticksTo1970: (((1970 - 1) * 365 + Math.floor(1970 / 4) - Math.floor(1970 / 100) +
 		Math.floor(1970 / 400)) * 24 * 60 * 60 * 10000000),
 
 	/* Format a date object into a string value.
-	   The format can be combinations of the following:
-	   d  - day of month (no leading zero)
-	   dd - day of month (two digit)
-	   o  - day of year (no leading zeros)
-	   oo - day of year (three digit)
-	   D  - day name short
-	   DD - day name long
-	   m  - month of year (no leading zero)
-	   mm - month of year (two digit)
-	   M  - month name short
-	   MM - month name long
-	   y  - year (two digit)
-	   yy - year (four digit)
-	   @ - Unix timestamp (ms since 01/01/1970)
-	   ! - Windows ticks (100ns since 01/01/0001)
-	   '...' - literal text
-	   '' - single quote
-
-	   @param  format    string - the desired format of the date
-	   @param  date      Date - the date value to format
-	   @param  settings  Object - attributes include:
-	                     dayNamesShort    string[7] - abbreviated names of the days from Sunday (optional)
-	                     dayNames         string[7] - names of the days from Sunday (optional)
-	                     monthNamesShort  string[12] - abbreviated names of the months (optional)
-	                     monthNames       string[12] - names of the months (optional)
-	   @return  string - the date in the above format */
+	 * The format can be combinations of the following:
+	 * d  - day of month (no leading zero)
+	 * dd - day of month (two digit)
+	 * o  - day of year (no leading zeros)
+	 * oo - day of year (three digit)
+	 * D  - day name short
+	 * DD - day name long
+	 * m  - month of year (no leading zero)
+	 * mm - month of year (two digit)
+	 * M  - month name short
+	 * MM - month name long
+	 * y  - year (two digit)
+	 * yy - year (four digit)
+	 * @ - Unix timestamp (ms since 01/01/1970)
+	 * ! - Windows ticks (100ns since 01/01/0001)
+	 * "..." - literal text
+	 * '' - single quote
+	 *
+	 * @param  format string - the desired format of the date
+	 * @param  date Date - the date value to format
+	 * @param  settings Object - attributes include:
+	 *					dayNamesShort	string[7] - abbreviated names of the days from Sunday (optional)
+	 *					dayNames		string[7] - names of the days from Sunday (optional)
+	 *					monthNamesShort string[12] - abbreviated names of the months (optional)
+	 *					monthNames		string[12] - names of the months (optional)
+	 * @return  string - the date in the above format
+	 */
 	formatDate: function (format, date, settings) {
-		if (!date)
-			return '';
-		var dayNamesShort = (settings ? settings.dayNamesShort : null) || this._defaults.dayNamesShort;
-		var dayNames = (settings ? settings.dayNames : null) || this._defaults.dayNames;
-		var monthNamesShort = (settings ? settings.monthNamesShort : null) || this._defaults.monthNamesShort;
-		var monthNames = (settings ? settings.monthNames : null) || this._defaults.monthNames;
-		// Check whether a format character is doubled
-		var lookAhead = function(match) {
-			var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) == match);
-			if (matches)
-				iFormat++;
-			return matches;
-		};
-		// Format a number, with leading zero if necessary
-		var formatNumber = function(match, value, len) {
-			var num = '' + value;
-			if (lookAhead(match))
-				while (num.length < len)
-					num = '0' + num;
-			return num;
-		};
-		// Format a name, short or long as requested
-		var formatName = function(match, value, shortNames, longNames) {
-			return (lookAhead(match) ? longNames[value] : shortNames[value]);
-		};
-		var output = '';
-		var literal = false;
-		if (date)
-			for (var iFormat = 0; iFormat < format.length; iFormat++) {
-				if (literal)
-					if (format.charAt(iFormat) == "'" && !lookAhead("'"))
+		if (!date) {
+			return "";
+		}
+
+		var iFormat,
+			dayNamesShort = (settings ? settings.dayNamesShort : null) || this._defaults.dayNamesShort,
+			dayNames = (settings ? settings.dayNames : null) || this._defaults.dayNames,
+			monthNamesShort = (settings ? settings.monthNamesShort : null) || this._defaults.monthNamesShort,
+			monthNames = (settings ? settings.monthNames : null) || this._defaults.monthNames,
+			// Check whether a format character is doubled
+			lookAhead = function(match) {
+				var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) === match);
+				if (matches) {
+					iFormat++;
+				}
+				return matches;
+			},
+			// Format a number, with leading zero if necessary
+			formatNumber = function(match, value, len) {
+				var num = "" + value;
+				if (lookAhead(match)) {
+					while (num.length < len) {
+						num = "0" + num;
+					}
+				}
+				return num;
+			},
+			// Format a name, short or long as requested
+			formatName = function(match, value, shortNames, longNames) {
+				return (lookAhead(match) ? longNames[value] : shortNames[value]);
+			},
+			output = "",
+			literal = false;
+
+		if (date) {
+			for (iFormat = 0; iFormat < format.length; iFormat++) {
+				if (literal) {
+					if (format.charAt(iFormat) === "'" && !lookAhead("'")) {
 						literal = false;
-					else
+					} else {
 						output += format.charAt(iFormat);
-				else
+					}
+				} else {
 					switch (format.charAt(iFormat)) {
-						case 'd':
-							output += formatNumber('d', date.getDate(), 2);
+						case "d":
+							output += formatNumber("d", date.getDate(), 2);
 							break;
-						case 'D':
-							output += formatName('D', date.getDay(), dayNamesShort, dayNames);
+						case "D":
+							output += formatName("D", date.getDay(), dayNamesShort, dayNames);
 							break;
-						case 'o':
-							output += formatNumber('o',
+						case "o":
+							output += formatNumber("o",
 								Math.round((new Date(date.getFullYear(), date.getMonth(), date.getDate()).getTime() - new Date(date.getFullYear(), 0, 0).getTime()) / 86400000), 3);
 							break;
-						case 'm':
-							output += formatNumber('m', date.getMonth() + 1, 2);
+						case "m":
+							output += formatNumber("m", date.getMonth() + 1, 2);
 							break;
-						case 'M':
-							output += formatName('M', date.getMonth(), monthNamesShort, monthNames);
+						case "M":
+							output += formatName("M", date.getMonth(), monthNamesShort, monthNames);
 							break;
-						case 'y':
-							output += (lookAhead('y') ? date.getFullYear() :
-								(date.getYear() % 100 < 10 ? '0' : '') + date.getYear() % 100);
+						case "y":
+							output += (lookAhead("y") ? date.getFullYear() :
+								(date.getYear() % 100 < 10 ? "0" : "") + date.getYear() % 100);
 							break;
-						case '@':
+						case "@":
 							output += date.getTime();
 							break;
-						case '!':
+						case "!":
 							output += date.getTime() * 10000 + this._ticksTo1970;
 							break;
 						case "'":
-							if (lookAhead("'"))
+							if (lookAhead("'")) {
 								output += "'";
-							else
+							} else {
 								literal = true;
+							}
 							break;
 						default:
 							output += format.charAt(iFormat);
 					}
+				}
 			}
+		}
 		return output;
 	},
 
 	/* Extract all possible characters from the date format. */
 	_possibleChars: function (format) {
-		var chars = '';
-		var literal = false;
-		// Check whether a format character is doubled
-		var lookAhead = function(match) {
-			var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) == match);
-			if (matches)
-				iFormat++;
-			return matches;
-		};
-		for (var iFormat = 0; iFormat < format.length; iFormat++)
-			if (literal)
-				if (format.charAt(iFormat) == "'" && !lookAhead("'"))
+		var iFormat,
+			chars = "",
+			literal = false,
+			// Check whether a format character is doubled
+			lookAhead = function(match) {
+				var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) === match);
+				if (matches) {
+					iFormat++;
+				}
+				return matches;
+			};
+
+		for (iFormat = 0; iFormat < format.length; iFormat++) {
+			if (literal) {
+				if (format.charAt(iFormat) === "'" && !lookAhead("'")) {
 					literal = false;
-				else
+				} else {
 					chars += format.charAt(iFormat);
-			else
+				}
+			} else {
 				switch (format.charAt(iFormat)) {
-					case 'd': case 'm': case 'y': case '@':
-						chars += '0123456789';
+					case "d": case "m": case "y": case "@":
+						chars += "0123456789";
 						break;
-					case 'D': case 'M':
+					case "D": case "M":
 						return null; // Accept anything
 					case "'":
-						if (lookAhead("'"))
+						if (lookAhead("'")) {
 							chars += "'";
-						else
+						} else {
 							literal = true;
+						}
 						break;
 					default:
 						chars += format.charAt(iFormat);
 				}
+			}
+		}
 		return chars;
 	},
 
@@ -1287,19 +1421,20 @@ $.extend(Datepicker.prototype, {
 
 	/* Parse existing date and initialise date picker. */
 	_setDateFromField: function(inst, noDefault) {
-		if (inst.input.val() == inst.lastVal) {
+		if (inst.input.val() === inst.lastVal) {
 			return;
 		}
-		var dateFormat = this._get(inst, 'dateFormat');
-		var dates = inst.lastVal = inst.input ? inst.input.val() : null;
-		var date, defaultDate;
-		date = defaultDate = this._getDefaultDate(inst);
-		var settings = this._getFormatConfig(inst);
+
+		var dateFormat = this._get(inst, "dateFormat"),
+			dates = inst.lastVal = inst.input ? inst.input.val() : null,
+			defaultDate = this._getDefaultDate(inst),
+			date = defaultDate,
+			settings = this._getFormatConfig(inst);
+
 		try {
 			date = this.parseDate(dateFormat, dates, settings) || defaultDate;
 		} catch (event) {
-			this.log(event);
-			dates = (noDefault ? '' : dates);
+			dates = (noDefault ? "" : dates);
 		}
 		inst.selectedDay = date.getDate();
 		inst.drawMonth = inst.selectedMonth = date.getMonth();
@@ -1313,53 +1448,56 @@ $.extend(Datepicker.prototype, {
 	/* Retrieve the default date shown on opening. */
 	_getDefaultDate: function(inst) {
 		return this._restrictMinMax(inst,
-			this._determineDate(inst, this._get(inst, 'defaultDate'), new Date()));
+			this._determineDate(inst, this._get(inst, "defaultDate"), new Date()));
 	},
 
 	/* A date may be specified as an exact value or a relative one. */
 	_determineDate: function(inst, date, defaultDate) {
 		var offsetNumeric = function(offset) {
-			var date = new Date();
-			date.setDate(date.getDate() + offset);
-			return date;
-		};
-		var offsetString = function(offset) {
-			try {
-				return $.datepicker.parseDate($.datepicker._get(inst, 'dateFormat'),
-					offset, $.datepicker._getFormatConfig(inst));
-			}
-			catch (e) {
-				// Ignore
-			}
-			var date = (offset.toLowerCase().match(/^c/) ?
-				$.datepicker._getDate(inst) : null) || new Date();
-			var year = date.getFullYear();
-			var month = date.getMonth();
-			var day = date.getDate();
-			var pattern = /([+-]?[0-9]+)\s*(d|D|w|W|m|M|y|Y)?/g;
-			var matches = pattern.exec(offset);
-			while (matches) {
-				switch (matches[2] || 'd') {
-					case 'd' : case 'D' :
-						day += parseInt(matches[1],10); break;
-					case 'w' : case 'W' :
-						day += parseInt(matches[1],10) * 7; break;
-					case 'm' : case 'M' :
-						month += parseInt(matches[1],10);
-						day = Math.min(day, $.datepicker._getDaysInMonth(year, month));
-						break;
-					case 'y': case 'Y' :
-						year += parseInt(matches[1],10);
-						day = Math.min(day, $.datepicker._getDaysInMonth(year, month));
-						break;
+				var date = new Date();
+				date.setDate(date.getDate() + offset);
+				return date;
+			},
+			offsetString = function(offset) {
+				try {
+					return $.datepicker.parseDate($.datepicker._get(inst, "dateFormat"),
+						offset, $.datepicker._getFormatConfig(inst));
 				}
-				matches = pattern.exec(offset);
-			}
-			return new Date(year, month, day);
-		};
-		var newDate = (date == null || date === '' ? defaultDate : (typeof date == 'string' ? offsetString(date) :
-			(typeof date == 'number' ? (isNaN(date) ? defaultDate : offsetNumeric(date)) : new Date(date.getTime()))));
-		newDate = (newDate && newDate.toString() == 'Invalid Date' ? defaultDate : newDate);
+				catch (e) {
+					// Ignore
+				}
+
+				var date = (offset.toLowerCase().match(/^c/) ?
+					$.datepicker._getDate(inst) : null) || new Date(),
+					year = date.getFullYear(),
+					month = date.getMonth(),
+					day = date.getDate(),
+					pattern = /([+\-]?[0-9]+)\s*(d|D|w|W|m|M|y|Y)?/g,
+					matches = pattern.exec(offset);
+
+				while (matches) {
+					switch (matches[2] || "d") {
+						case "d" : case "D" :
+							day += parseInt(matches[1],10); break;
+						case "w" : case "W" :
+							day += parseInt(matches[1],10) * 7; break;
+						case "m" : case "M" :
+							month += parseInt(matches[1],10);
+							day = Math.min(day, $.datepicker._getDaysInMonth(year, month));
+							break;
+						case "y": case "Y" :
+							year += parseInt(matches[1],10);
+							day = Math.min(day, $.datepicker._getDaysInMonth(year, month));
+							break;
+					}
+					matches = pattern.exec(offset);
+				}
+				return new Date(year, month, day);
+			},
+			newDate = (date == null || date === "" ? defaultDate : (typeof date === "string" ? offsetString(date) :
+				(typeof date === "number" ? (isNaN(date) ? defaultDate : offsetNumeric(date)) : new Date(date.getTime()))));
+
+		newDate = (newDate && newDate.toString() === "Invalid Date" ? defaultDate : newDate);
 		if (newDate) {
 			newDate.setHours(0);
 			newDate.setMinutes(0);
@@ -1370,37 +1508,42 @@ $.extend(Datepicker.prototype, {
 	},
 
 	/* Handle switch to/from daylight saving.
-	   Hours may be non-zero on daylight saving cut-over:
-	   > 12 when midnight changeover, but then cannot generate
-	   midnight datetime, so jump to 1AM, otherwise reset.
-	   @param  date  (Date) the date to check
-	   @return  (Date) the corrected date */
+	 * Hours may be non-zero on daylight saving cut-over:
+	 * > 12 when midnight changeover, but then cannot generate
+	 * midnight datetime, so jump to 1AM, otherwise reset.
+	 * @param  date  (Date) the date to check
+	 * @return  (Date) the corrected date
+	 */
 	_daylightSavingAdjust: function(date) {
-		if (!date) return null;
+		if (!date) {
+			return null;
+		}
 		date.setHours(date.getHours() > 12 ? date.getHours() + 2 : 0);
 		return date;
 	},
 
 	/* Set the date(s) directly. */
 	_setDate: function(inst, date, noChange) {
-		var clear = !date;
-		var origMonth = inst.selectedMonth;
-		var origYear = inst.selectedYear;
-		var newDate = this._restrictMinMax(inst, this._determineDate(inst, date, new Date()));
+		var clear = !date,
+			origMonth = inst.selectedMonth,
+			origYear = inst.selectedYear,
+			newDate = this._restrictMinMax(inst, this._determineDate(inst, date, new Date()));
+
 		inst.selectedDay = inst.currentDay = newDate.getDate();
 		inst.drawMonth = inst.selectedMonth = inst.currentMonth = newDate.getMonth();
 		inst.drawYear = inst.selectedYear = inst.currentYear = newDate.getFullYear();
-		if ((origMonth != inst.selectedMonth || origYear != inst.selectedYear) && !noChange)
+		if ((origMonth !== inst.selectedMonth || origYear !== inst.selectedYear) && !noChange) {
 			this._notifyChange(inst);
+		}
 		this._adjustInstDate(inst);
 		if (inst.input) {
-			inst.input.val(clear ? '' : this._formatDate(inst));
+			inst.input.val(clear ? "" : this._formatDate(inst));
 		}
 	},
 
 	/* Retrieve the date(s) directly. */
 	_getDate: function(inst) {
-		var startDate = (!inst.currentYear || (inst.input && inst.input.val() == '') ? null :
+		var startDate = (!inst.currentYear || (inst.input && inst.input.val() === "") ? null :
 			this._daylightSavingAdjust(new Date(
 			inst.currentYear, inst.currentMonth, inst.currentDay)));
 			return startDate;
@@ -1410,64 +1553,71 @@ $.extend(Datepicker.prototype, {
 	 * they work with static code transformers like Caja.
 	 */
 	_attachHandlers: function(inst) {
-		var stepMonths = this._get(inst, 'stepMonths');
-		var id = '#' + inst.id.replace( /\\\\/g, "\\" );
-		inst.dpDiv.find('[data-handler]').map(function () {
+		var stepMonths = this._get(inst, "stepMonths"),
+			id = "#" + inst.id.replace( /\\\\/g, "\\" );
+		inst.dpDiv.find("[data-handler]").map(function () {
 			var handler = {
 				prev: function () {
-					window['DP_jQuery_' + dpuuid].datepicker._adjustDate(id, -stepMonths, 'M');
+					window["DP_jQuery_" + dpuuid].datepicker._adjustDate(id, -stepMonths, "M");
 				},
 				next: function () {
-					window['DP_jQuery_' + dpuuid].datepicker._adjustDate(id, +stepMonths, 'M');
+					window["DP_jQuery_" + dpuuid].datepicker._adjustDate(id, +stepMonths, "M");
 				},
 				hide: function () {
-					window['DP_jQuery_' + dpuuid].datepicker._hideDatepicker();
+					window["DP_jQuery_" + dpuuid].datepicker._hideDatepicker();
 				},
 				today: function () {
-					window['DP_jQuery_' + dpuuid].datepicker._gotoToday(id);
+					window["DP_jQuery_" + dpuuid].datepicker._gotoToday(id);
 				},
 				selectDay: function () {
-					window['DP_jQuery_' + dpuuid].datepicker._selectDay(id, +this.getAttribute('data-month'), +this.getAttribute('data-year'), this);
+					window["DP_jQuery_" + dpuuid].datepicker._selectDay(id, +this.getAttribute("data-month"), +this.getAttribute("data-year"), this);
 					return false;
 				},
 				selectMonth: function () {
-					window['DP_jQuery_' + dpuuid].datepicker._selectMonthYear(id, this, 'M');
+					window["DP_jQuery_" + dpuuid].datepicker._selectMonthYear(id, this, "M");
 					return false;
 				},
 				selectYear: function () {
-					window['DP_jQuery_' + dpuuid].datepicker._selectMonthYear(id, this, 'Y');
+					window["DP_jQuery_" + dpuuid].datepicker._selectMonthYear(id, this, "Y");
 					return false;
 				}
 			};
-			$(this).bind(this.getAttribute('data-event'), handler[this.getAttribute('data-handler')]);
+			$(this).bind(this.getAttribute("data-event"), handler[this.getAttribute("data-handler")]);
 		});
 	},
-	
+
 	/* Generate the HTML for the current state of the date picker. */
 	_generateHTML: function(inst) {
-		var today = new Date();
-		today = this._daylightSavingAdjust(
-			new Date(today.getFullYear(), today.getMonth(), today.getDate())); // clear time
-		var isRTL = this._get(inst, 'isRTL');
-		var showButtonPanel = this._get(inst, 'showButtonPanel');
-		var hideIfNoPrevNext = this._get(inst, 'hideIfNoPrevNext');
-		var navigationAsDateFormat = this._get(inst, 'navigationAsDateFormat');
-		var numMonths = this._getNumberOfMonths(inst);
-		var showCurrentAtPos = this._get(inst, 'showCurrentAtPos');
-		var stepMonths = this._get(inst, 'stepMonths');
-		var isMultiMonth = (numMonths[0] != 1 || numMonths[1] != 1);
-		var currentDate = this._daylightSavingAdjust((!inst.currentDay ? new Date(9999, 9, 9) :
-			new Date(inst.currentYear, inst.currentMonth, inst.currentDay)));
-		var minDate = this._getMinMaxDate(inst, 'min');
-		var maxDate = this._getMinMaxDate(inst, 'max');
-		var drawMonth = inst.drawMonth - showCurrentAtPos;
-		var drawYear = inst.drawYear;
+		var maxDraw, prevText, prev, nextText, next, currentText, gotoDate,
+			controls, buttonPanel, firstDay, showWeek, dayNames, dayNamesMin,
+			monthNames, monthNamesShort, beforeShowDay, showOtherMonths,
+			selectOtherMonths, defaultDate, html, dow, row, group, col, selectedDate,
+			cornerClass, calender, thead, day, daysInMonth, leadDays, curRows, numRows,
+			printDate, dRow, tbody, daySettings, otherMonth, unselectable,
+			tempDate = new Date(),
+			today = this._daylightSavingAdjust(
+				new Date(tempDate.getFullYear(), tempDate.getMonth(), tempDate.getDate())), // clear time
+			isRTL = this._get(inst, "isRTL"),
+			showButtonPanel = this._get(inst, "showButtonPanel"),
+			hideIfNoPrevNext = this._get(inst, "hideIfNoPrevNext"),
+			navigationAsDateFormat = this._get(inst, "navigationAsDateFormat"),
+			numMonths = this._getNumberOfMonths(inst),
+			showCurrentAtPos = this._get(inst, "showCurrentAtPos"),
+			stepMonths = this._get(inst, "stepMonths"),
+			isMultiMonth = (numMonths[0] !== 1 || numMonths[1] !== 1),
+			currentDate = this._daylightSavingAdjust((!inst.currentDay ? new Date(9999, 9, 9) :
+				new Date(inst.currentYear, inst.currentMonth, inst.currentDay))),
+			minDate = this._getMinMaxDate(inst, "min"),
+			maxDate = this._getMinMaxDate(inst, "max"),
+			drawMonth = inst.drawMonth - showCurrentAtPos,
+			drawYear = inst.drawYear;
+
 		if (drawMonth < 0) {
 			drawMonth += 12;
 			drawYear--;
 		}
 		if (maxDate) {
-			var maxDraw = this._daylightSavingAdjust(new Date(maxDate.getFullYear(),
+			maxDraw = this._daylightSavingAdjust(new Date(maxDate.getFullYear(),
 				maxDate.getMonth() - (numMonths[0] * numMonths[1]) + 1, maxDate.getDate()));
 			maxDraw = (minDate && maxDraw < minDate ? minDate : maxDraw);
 			while (this._daylightSavingAdjust(new Date(drawYear, drawMonth, 1)) > maxDraw) {
@@ -1480,133 +1630,142 @@ $.extend(Datepicker.prototype, {
 		}
 		inst.drawMonth = drawMonth;
 		inst.drawYear = drawYear;
-		var prevText = this._get(inst, 'prevText');
+
+		prevText = this._get(inst, "prevText");
 		prevText = (!navigationAsDateFormat ? prevText : this.formatDate(prevText,
 			this._daylightSavingAdjust(new Date(drawYear, drawMonth - stepMonths, 1)),
 			this._getFormatConfig(inst)));
-		var prev = (this._canAdjustMonth(inst, -1, drawYear, drawMonth) ?
-			'<a class="ui-datepicker-prev ui-corner-all" data-handler="prev" data-event="click"' +
-			' title="' + prevText + '"><span class="ui-icon ui-icon-circle-triangle-' + ( isRTL ? 'e' : 'w') + '">' + prevText + '</span></a>' :
-			(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>'));
-		var nextText = this._get(inst, 'nextText');
+
+		prev = (this._canAdjustMonth(inst, -1, drawYear, drawMonth) ?
+			"<a class='ui-datepicker-prev ui-corner-all' data-handler='prev' data-event='click'" +
+			" title='" + prevText + "'><span class='ui-icon ui-icon-circle-triangle-" + ( isRTL ? "e" : "w") + "'>" + prevText + "</span></a>" :
+			(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>"));
+
+		nextText = this._get(inst, "nextText");
 		nextText = (!navigationAsDateFormat ? nextText : this.formatDate(nextText,
 			this._daylightSavingAdjust(new Date(drawYear, drawMonth + stepMonths, 1)),
 			this._getFormatConfig(inst)));
-		var next = (this._canAdjustMonth(inst, +1, drawYear, drawMonth) ?
-			'<a class="ui-datepicker-next ui-corner-all" data-handler="next" data-event="click"' +
-			' title="' + nextText + '"><span class="ui-icon ui-icon-circle-triangle-' + ( isRTL ? 'w' : 'e') + '">' + nextText + '</span></a>' :
-			(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>'));
-		var currentText = this._get(inst, 'currentText');
-		var gotoDate = (this._get(inst, 'gotoCurrent') && inst.currentDay ? currentDate : today);
+
+		next = (this._canAdjustMonth(inst, +1, drawYear, drawMonth) ?
+			"<a class='ui-datepicker-next ui-corner-all' data-handler='next' data-event='click'" +
+			" title='" + nextText + "'><span class='ui-icon ui-icon-circle-triangle-" + ( isRTL ? "w" : "e") + "'>" + nextText + "</span></a>" :
+			(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>"));
+
+		currentText = this._get(inst, "currentText");
+		gotoDate = (this._get(inst, "gotoCurrent") && inst.currentDay ? currentDate : today);
 		currentText = (!navigationAsDateFormat ? currentText :
 			this.formatDate(currentText, gotoDate, this._getFormatConfig(inst)));
-		var controls = (!inst.inline ? '<button type="button" class="ui-datepicker-close ui-state-default ui-priority-primary ui-corner-all" data-handler="hide" data-event="click">' +
-			this._get(inst, 'closeText') + '</button>' : '');
-		var buttonPanel = (showButtonPanel) ? '<div class="ui-datepicker-buttonpane ui-widget-content">' + (isRTL ? controls : '') +
-			(this._isInRange(inst, gotoDate) ? '<button type="button" class="ui-datepicker-current ui-state-default ui-priority-secondary ui-corner-all" data-handler="today" data-event="click"' +
-			'>' + currentText + '</button>' : '') + (isRTL ? '' : controls) + '</div>' : '';
-		var firstDay = parseInt(this._get(inst, 'firstDay'),10);
+
+		controls = (!inst.inline ? "<button type='button' class='ui-datepicker-close ui-state-default ui-priority-primary ui-corner-all' data-handler='hide' data-event='click'>" +
+			this._get(inst, "closeText") + "</button>" : "");
+
+		buttonPanel = (showButtonPanel) ? "<div class='ui-datepicker-buttonpane ui-widget-content'>" + (isRTL ? controls : "") +
+			(this._isInRange(inst, gotoDate) ? "<button type='button' class='ui-datepicker-current ui-state-default ui-priority-secondary ui-corner-all' data-handler='today' data-event='click'" +
+			">" + currentText + "</button>" : "") + (isRTL ? "" : controls) + "</div>" : "";
+
+		firstDay = parseInt(this._get(inst, "firstDay"),10);
 		firstDay = (isNaN(firstDay) ? 0 : firstDay);
-		var showWeek = this._get(inst, 'showWeek');
-		var dayNames = this._get(inst, 'dayNames');
-		var dayNamesShort = this._get(inst, 'dayNamesShort');
-		var dayNamesMin = this._get(inst, 'dayNamesMin');
-		var monthNames = this._get(inst, 'monthNames');
-		var monthNamesShort = this._get(inst, 'monthNamesShort');
-		var beforeShowDay = this._get(inst, 'beforeShowDay');
-		var showOtherMonths = this._get(inst, 'showOtherMonths');
-		var selectOtherMonths = this._get(inst, 'selectOtherMonths');
-		var calculateWeek = this._get(inst, 'calculateWeek') || this.iso8601Week;
-		var defaultDate = this._getDefaultDate(inst);
-		var html = '';
-		for (var row = 0; row < numMonths[0]; row++) {
-			var group = '';
+
+		showWeek = this._get(inst, "showWeek");
+		dayNames = this._get(inst, "dayNames");
+		dayNamesMin = this._get(inst, "dayNamesMin");
+		monthNames = this._get(inst, "monthNames");
+		monthNamesShort = this._get(inst, "monthNamesShort");
+		beforeShowDay = this._get(inst, "beforeShowDay");
+		showOtherMonths = this._get(inst, "showOtherMonths");
+		selectOtherMonths = this._get(inst, "selectOtherMonths");
+		defaultDate = this._getDefaultDate(inst);
+		html = "";
+		dow;
+		for (row = 0; row < numMonths[0]; row++) {
+			group = "";
 			this.maxRows = 4;
-			for (var col = 0; col < numMonths[1]; col++) {
-				var selectedDate = this._daylightSavingAdjust(new Date(drawYear, drawMonth, inst.selectedDay));
-				var cornerClass = ' ui-corner-all';
-				var calender = '';
+			for (col = 0; col < numMonths[1]; col++) {
+				selectedDate = this._daylightSavingAdjust(new Date(drawYear, drawMonth, inst.selectedDay));
+				cornerClass = " ui-corner-all";
+				calender = "";
 				if (isMultiMonth) {
-					calender += '<div class="ui-datepicker-group';
-					if (numMonths[1] > 1)
+					calender += "<div class='ui-datepicker-group";
+					if (numMonths[1] > 1) {
 						switch (col) {
-							case 0: calender += ' ui-datepicker-group-first';
-								cornerClass = ' ui-corner-' + (isRTL ? 'right' : 'left'); break;
-							case numMonths[1]-1: calender += ' ui-datepicker-group-last';
-								cornerClass = ' ui-corner-' + (isRTL ? 'left' : 'right'); break;
-							default: calender += ' ui-datepicker-group-middle'; cornerClass = ''; break;
+							case 0: calender += " ui-datepicker-group-first";
+								cornerClass = " ui-corner-" + (isRTL ? "right" : "left"); break;
+							case numMonths[1]-1: calender += " ui-datepicker-group-last";
+								cornerClass = " ui-corner-" + (isRTL ? "left" : "right"); break;
+							default: calender += " ui-datepicker-group-middle"; cornerClass = ""; break;
 						}
-					calender += '">';
+					}
+					calender += "'>";
 				}
-				calender += '<div class="ui-datepicker-header ui-widget-header ui-helper-clearfix' + cornerClass + '">' +
-					(/all|left/.test(cornerClass) && row == 0 ? (isRTL ? next : prev) : '') +
-					(/all|right/.test(cornerClass) && row == 0 ? (isRTL ? prev : next) : '') +
+				calender += "<div class='ui-datepicker-header ui-widget-header ui-helper-clearfix" + cornerClass + "'>" +
+					(/all|left/.test(cornerClass) && row === 0 ? (isRTL ? next : prev) : "") +
+					(/all|right/.test(cornerClass) && row === 0 ? (isRTL ? prev : next) : "") +
 					this._generateMonthYearHeader(inst, drawMonth, drawYear, minDate, maxDate,
 					row > 0 || col > 0, monthNames, monthNamesShort) + // draw month headers
-					'</div><table class="ui-datepicker-calendar"><thead>' +
-					'<tr>';
-				var thead = (showWeek ? '<th class="ui-datepicker-week-col">' + this._get(inst, 'weekHeader') + '</th>' : '');
-				for (var dow = 0; dow < 7; dow++) { // days of the week
-					var day = (dow + firstDay) % 7;
-					thead += '<th' + ((dow + firstDay + 6) % 7 >= 5 ? ' class="ui-datepicker-week-end"' : '') + '>' +
-						'<span title="' + dayNames[day] + '">' + dayNamesMin[day] + '</span></th>';
+					"</div><table class='ui-datepicker-calendar'><thead>" +
+					"<tr>";
+				thead = (showWeek ? "<th class='ui-datepicker-week-col'>" + this._get(inst, "weekHeader") + "</th>" : "");
+				for (dow = 0; dow < 7; dow++) { // days of the week
+					day = (dow + firstDay) % 7;
+					thead += "<th" + ((dow + firstDay + 6) % 7 >= 5 ? " class='ui-datepicker-week-end'" : "") + ">" +
+						"<span title='" + dayNames[day] + "'>" + dayNamesMin[day] + "</span></th>";
 				}
-				calender += thead + '</tr></thead><tbody>';
-				var daysInMonth = this._getDaysInMonth(drawYear, drawMonth);
-				if (drawYear == inst.selectedYear && drawMonth == inst.selectedMonth)
+				calender += thead + "</tr></thead><tbody>";
+				daysInMonth = this._getDaysInMonth(drawYear, drawMonth);
+				if (drawYear === inst.selectedYear && drawMonth === inst.selectedMonth) {
 					inst.selectedDay = Math.min(inst.selectedDay, daysInMonth);
-				var leadDays = (this._getFirstDayOfMonth(drawYear, drawMonth) - firstDay + 7) % 7;
-				var curRows = Math.ceil((leadDays + daysInMonth) / 7); // calculate the number of rows to generate
-				var numRows = (isMultiMonth ? this.maxRows > curRows ? this.maxRows : curRows : curRows); //If multiple months, use the higher number of rows (see #7043)
+				}
+				leadDays = (this._getFirstDayOfMonth(drawYear, drawMonth) - firstDay + 7) % 7;
+				curRows = Math.ceil((leadDays + daysInMonth) / 7); // calculate the number of rows to generate
+				numRows = (isMultiMonth ? this.maxRows > curRows ? this.maxRows : curRows : curRows); //If multiple months, use the higher number of rows (see #7043)
 				this.maxRows = numRows;
-				var printDate = this._daylightSavingAdjust(new Date(drawYear, drawMonth, 1 - leadDays));
-				for (var dRow = 0; dRow < numRows; dRow++) { // create date picker rows
-					calender += '<tr>';
-					var tbody = (!showWeek ? '' : '<td class="ui-datepicker-week-col">' +
-						this._get(inst, 'calculateWeek')(printDate) + '</td>');
-					for (var dow = 0; dow < 7; dow++) { // create date picker days
-						var daySettings = (beforeShowDay ?
-							beforeShowDay.apply((inst.input ? inst.input[0] : null), [printDate]) : [true, '']);
-						var otherMonth = (printDate.getMonth() != drawMonth);
-						var unselectable = (otherMonth && !selectOtherMonths) || !daySettings[0] ||
+				printDate = this._daylightSavingAdjust(new Date(drawYear, drawMonth, 1 - leadDays));
+				for (dRow = 0; dRow < numRows; dRow++) { // create date picker rows
+					calender += "<tr>";
+					tbody = (!showWeek ? "" : "<td class='ui-datepicker-week-col'>" +
+						this._get(inst, "calculateWeek")(printDate) + "</td>");
+					for (dow = 0; dow < 7; dow++) { // create date picker days
+						daySettings = (beforeShowDay ?
+							beforeShowDay.apply((inst.input ? inst.input[0] : null), [printDate]) : [true, ""]);
+						otherMonth = (printDate.getMonth() !== drawMonth);
+						unselectable = (otherMonth && !selectOtherMonths) || !daySettings[0] ||
 							(minDate && printDate < minDate) || (maxDate && printDate > maxDate);
-						tbody += '<td class="' +
-							((dow + firstDay + 6) % 7 >= 5 ? ' ui-datepicker-week-end' : '') + // highlight weekends
-							(otherMonth ? ' ui-datepicker-other-month' : '') + // highlight days from other months
-							((printDate.getTime() == selectedDate.getTime() && drawMonth == inst.selectedMonth && inst._keyEvent) || // user pressed key
-							(defaultDate.getTime() == printDate.getTime() && defaultDate.getTime() == selectedDate.getTime()) ?
+						tbody += "<td class='" +
+							((dow + firstDay + 6) % 7 >= 5 ? " ui-datepicker-week-end" : "") + // highlight weekends
+							(otherMonth ? " ui-datepicker-other-month" : "") + // highlight days from other months
+							((printDate.getTime() === selectedDate.getTime() && drawMonth === inst.selectedMonth && inst._keyEvent) || // user pressed key
+							(defaultDate.getTime() === printDate.getTime() && defaultDate.getTime() === selectedDate.getTime()) ?
 							// or defaultDate is current printedDate and defaultDate is selectedDate
-							' ' + this._dayOverClass : '') + // highlight selected day
-							(unselectable ? ' ' + this._unselectableClass + ' ui-state-disabled': '') +  // highlight unselectable days
-							(otherMonth && !showOtherMonths ? '' : ' ' + daySettings[1] + // highlight custom dates
-							(printDate.getTime() == currentDate.getTime() ? ' ' + this._currentClass : '') + // highlight selected day
-							(printDate.getTime() == today.getTime() ? ' ui-datepicker-today' : '')) + '"' + // highlight today (if different)
-							((!otherMonth || showOtherMonths) && daySettings[2] ? ' title="' + daySettings[2] + '"' : '') + // cell title
-							(unselectable ? '' : ' data-handler="selectDay" data-event="click" data-month="' + printDate.getMonth() + '" data-year="' + printDate.getFullYear() + '"') + '>' + // actions
-							(otherMonth && !showOtherMonths ? '&#xa0;' : // display for other months
-							(unselectable ? '<span class="ui-state-default">' + printDate.getDate() + '</span>' : '<a class="ui-state-default' +
-							(printDate.getTime() == today.getTime() ? ' ui-state-highlight' : '') +
-							(printDate.getTime() == currentDate.getTime() ? ' ui-state-active' : '') + // highlight selected day
-							(otherMonth ? ' ui-priority-secondary' : '') + // distinguish dates from other months
-							'" href="#">' + printDate.getDate() + '</a>')) + '</td>'; // display selectable date
+							" " + this._dayOverClass : "") + // highlight selected day
+							(unselectable ? " " + this._unselectableClass + " ui-state-disabled": "") +  // highlight unselectable days
+							(otherMonth && !showOtherMonths ? "" : " " + daySettings[1] + // highlight custom dates
+							(printDate.getTime() === currentDate.getTime() ? " " + this._currentClass : "") + // highlight selected day
+							(printDate.getTime() === today.getTime() ? " ui-datepicker-today" : "")) + "'" + // highlight today (if different)
+							((!otherMonth || showOtherMonths) && daySettings[2] ? " title='" + daySettings[2].replace(/'/g, "&#39;") + "'" : "") + // cell title
+							(unselectable ? "" : " data-handler='selectDay' data-event='click' data-month='" + printDate.getMonth() + "' data-year='" + printDate.getFullYear() + "'") + ">" + // actions
+							(otherMonth && !showOtherMonths ? "&#xa0;" : // display for other months
+							(unselectable ? "<span class='ui-state-default'>" + printDate.getDate() + "</span>" : "<a class='ui-state-default" +
+							(printDate.getTime() === today.getTime() ? " ui-state-highlight" : "") +
+							(printDate.getTime() === currentDate.getTime() ? " ui-state-active" : "") + // highlight selected day
+							(otherMonth ? " ui-priority-secondary" : "") + // distinguish dates from other months
+							"' href='#'>" + printDate.getDate() + "</a>")) + "</td>"; // display selectable date
 						printDate.setDate(printDate.getDate() + 1);
 						printDate = this._daylightSavingAdjust(printDate);
 					}
-					calender += tbody + '</tr>';
+					calender += tbody + "</tr>";
 				}
 				drawMonth++;
 				if (drawMonth > 11) {
 					drawMonth = 0;
 					drawYear++;
 				}
-				calender += '</tbody></table>' + (isMultiMonth ? '</div>' + 
-							((numMonths[0] > 0 && col == numMonths[1]-1) ? '<div class="ui-datepicker-row-break"></div>' : '') : '');
+				calender += "</tbody></table>" + (isMultiMonth ? "</div>" +
+							((numMonths[0] > 0 && col === numMonths[1]-1) ? "<div class='ui-datepicker-row-break'></div>" : "") : "");
 				group += calender;
 			}
 			html += group;
 		}
-		html += buttonPanel + ($.browser.msie && parseInt($.browser.version,10) < 7 && !inst.inline ?
-			'<iframe src="javascript:false;" class="ui-datepicker-cover" frameborder="0"></iframe>' : '');
+		html += buttonPanel;
 		inst._keyEvent = false;
 		return html;
 	},
@@ -1614,108 +1773,116 @@ $.extend(Datepicker.prototype, {
 	/* Generate the month and year header. */
 	_generateMonthYearHeader: function(inst, drawMonth, drawYear, minDate, maxDate,
 			secondary, monthNames, monthNamesShort) {
-		var changeMonth = this._get(inst, 'changeMonth');
-		var changeYear = this._get(inst, 'changeYear');
-		var showMonthAfterYear = this._get(inst, 'showMonthAfterYear');
-		var html = '<div class="ui-datepicker-title">';
-		var monthHtml = '';
+
+		var inMinYear, inMaxYear, month, years, thisYear, determineYear, year, endYear,
+			changeMonth = this._get(inst, "changeMonth"),
+			changeYear = this._get(inst, "changeYear"),
+			showMonthAfterYear = this._get(inst, "showMonthAfterYear"),
+			html = "<div class='ui-datepicker-title'>",
+			monthHtml = "";
+
 		// month selection
-		if (secondary || !changeMonth)
-			monthHtml += '<span class="ui-datepicker-month">' + monthNames[drawMonth] + '</span>';
-		else {
-			var inMinYear = (minDate && minDate.getFullYear() == drawYear);
-			var inMaxYear = (maxDate && maxDate.getFullYear() == drawYear);
-			monthHtml += '<select class="ui-datepicker-month" data-handler="selectMonth" data-event="change">';
-			for (var month = 0; month < 12; month++) {
-				if ((!inMinYear || month >= minDate.getMonth()) &&
-						(!inMaxYear || month <= maxDate.getMonth()))
-					monthHtml += '<option value="' + month + '"' +
-						(month == drawMonth ? ' selected="selected"' : '') +
-						'>' + monthNamesShort[month] + '</option>';
+		if (secondary || !changeMonth) {
+			monthHtml += "<span class='ui-datepicker-month'>" + monthNames[drawMonth] + "</span>";
+		} else {
+			inMinYear = (minDate && minDate.getFullYear() === drawYear);
+			inMaxYear = (maxDate && maxDate.getFullYear() === drawYear);
+			monthHtml += "<select class='ui-datepicker-month' data-handler='selectMonth' data-event='change'>";
+			for ( month = 0; month < 12; month++) {
+				if ((!inMinYear || month >= minDate.getMonth()) && (!inMaxYear || month <= maxDate.getMonth())) {
+					monthHtml += "<option value='" + month + "'" +
+						(month === drawMonth ? " selected='selected'" : "") +
+						">" + monthNamesShort[month] + "</option>";
+				}
 			}
-			monthHtml += '</select>';
+			monthHtml += "</select>";
+		}
+
+		if (!showMonthAfterYear) {
+			html += monthHtml + (secondary || !(changeMonth && changeYear) ? "&#xa0;" : "");
 		}
-		if (!showMonthAfterYear)
-			html += monthHtml + (secondary || !(changeMonth && changeYear) ? '&#xa0;' : '');
+
 		// year selection
 		if ( !inst.yearshtml ) {
-			inst.yearshtml = '';
-			if (secondary || !changeYear)
-				html += '<span class="ui-datepicker-year">' + drawYear + '</span>';
-			else {
+			inst.yearshtml = "";
+			if (secondary || !changeYear) {
+				html += "<span class='ui-datepicker-year'>" + drawYear + "</span>";
+			} else {
 				// determine range of years to display
-				var years = this._get(inst, 'yearRange').split(':');
-				var thisYear = new Date().getFullYear();
-				var determineYear = function(value) {
-					var year = (value.match(/c[+-].*/) ? drawYear + parseInt(value.substring(1), 10) :
-						(value.match(/[+-].*/) ? thisYear + parseInt(value, 10) :
+				years = this._get(inst, "yearRange").split(":");
+				thisYear = new Date().getFullYear();
+				determineYear = function(value) {
+					var year = (value.match(/c[+\-].*/) ? drawYear + parseInt(value.substring(1), 10) :
+						(value.match(/[+\-].*/) ? thisYear + parseInt(value, 10) :
 						parseInt(value, 10)));
 					return (isNaN(year) ? thisYear : year);
 				};
-				var year = determineYear(years[0]);
-				var endYear = Math.max(year, determineYear(years[1] || ''));
+				year = determineYear(years[0]);
+				endYear = Math.max(year, determineYear(years[1] || ""));
 				year = (minDate ? Math.max(year, minDate.getFullYear()) : year);
 				endYear = (maxDate ? Math.min(endYear, maxDate.getFullYear()) : endYear);
-				inst.yearshtml += '<select class="ui-datepicker-year" data-handler="selectYear" data-event="change">';
+				inst.yearshtml += "<select class='ui-datepicker-year' data-handler='selectYear' data-event='change'>";
 				for (; year <= endYear; year++) {
-					inst.yearshtml += '<option value="' + year + '"' +
-						(year == drawYear ? ' selected="selected"' : '') +
-						'>' + year + '</option>';
+					inst.yearshtml += "<option value='" + year + "'" +
+						(year === drawYear ? " selected='selected'" : "") +
+						">" + year + "</option>";
 				}
-				inst.yearshtml += '</select>';
-				
+				inst.yearshtml += "</select>";
+
 				html += inst.yearshtml;
 				inst.yearshtml = null;
 			}
 		}
-		html += this._get(inst, 'yearSuffix');
-		if (showMonthAfterYear)
-			html += (secondary || !(changeMonth && changeYear) ? '&#xa0;' : '') + monthHtml;
-		html += '</div>'; // Close datepicker_header
+
+		html += this._get(inst, "yearSuffix");
+		if (showMonthAfterYear) {
+			html += (secondary || !(changeMonth && changeYear) ? "&#xa0;" : "") + monthHtml;
+		}
+		html += "</div>"; // Close datepicker_header
 		return html;
 	},
 
 	/* Adjust one of the date sub-fields. */
 	_adjustInstDate: function(inst, offset, period) {
-		var year = inst.drawYear + (period == 'Y' ? offset : 0);
-		var month = inst.drawMonth + (period == 'M' ? offset : 0);
-		var day = Math.min(inst.selectedDay, this._getDaysInMonth(year, month)) +
-			(period == 'D' ? offset : 0);
-		var date = this._restrictMinMax(inst,
-			this._daylightSavingAdjust(new Date(year, month, day)));
+		var year = inst.drawYear + (period === "Y" ? offset : 0),
+			month = inst.drawMonth + (period === "M" ? offset : 0),
+			day = Math.min(inst.selectedDay, this._getDaysInMonth(year, month)) + (period === "D" ? offset : 0),
+			date = this._restrictMinMax(inst, this._daylightSavingAdjust(new Date(year, month, day)));
+
 		inst.selectedDay = date.getDate();
 		inst.drawMonth = inst.selectedMonth = date.getMonth();
 		inst.drawYear = inst.selectedYear = date.getFullYear();
-		if (period == 'M' || period == 'Y')
+		if (period === "M" || period === "Y") {
 			this._notifyChange(inst);
+		}
 	},
 
 	/* Ensure a date is within any min/max bounds. */
 	_restrictMinMax: function(inst, date) {
-		var minDate = this._getMinMaxDate(inst, 'min');
-		var maxDate = this._getMinMaxDate(inst, 'max');
-		var newDate = (minDate && date < minDate ? minDate : date);
-		newDate = (maxDate && newDate > maxDate ? maxDate : newDate);
-		return newDate;
+		var minDate = this._getMinMaxDate(inst, "min"),
+			maxDate = this._getMinMaxDate(inst, "max"),
+			newDate = (minDate && date < minDate ? minDate : date);
+		return (maxDate && newDate > maxDate ? maxDate : newDate);
 	},
 
 	/* Notify change of month/year. */
 	_notifyChange: function(inst) {
-		var onChange = this._get(inst, 'onChangeMonthYear');
-		if (onChange)
+		var onChange = this._get(inst, "onChangeMonthYear");
+		if (onChange) {
 			onChange.apply((inst.input ? inst.input[0] : null),
 				[inst.selectedYear, inst.selectedMonth + 1, inst]);
+		}
 	},
 
 	/* Determine the number of months to show. */
 	_getNumberOfMonths: function(inst) {
-		var numMonths = this._get(inst, 'numberOfMonths');
-		return (numMonths == null ? [1, 1] : (typeof numMonths == 'number' ? [1, numMonths] : numMonths));
+		var numMonths = this._get(inst, "numberOfMonths");
+		return (numMonths == null ? [1, 1] : (typeof numMonths === "number" ? [1, numMonths] : numMonths));
 	},
 
 	/* Determine the current maximum date - ensure no time components are set. */
 	_getMinMaxDate: function(inst, minMax) {
-		return this._determineDate(inst, this._get(inst, minMax + 'Date'), null);
+		return this._determineDate(inst, this._get(inst, minMax + "Date"), null);
 	},
 
 	/* Find the number of days in a given month. */
@@ -1730,30 +1897,51 @@ $.extend(Datepicker.prototype, {
 
 	/* Determines if we should allow a "next/prev" month display change. */
 	_canAdjustMonth: function(inst, offset, curYear, curMonth) {
-		var numMonths = this._getNumberOfMonths(inst);
-		var date = this._daylightSavingAdjust(new Date(curYear,
+		var numMonths = this._getNumberOfMonths(inst),
+			date = this._daylightSavingAdjust(new Date(curYear,
 			curMonth + (offset < 0 ? offset : numMonths[0] * numMonths[1]), 1));
-		if (offset < 0)
+
+		if (offset < 0) {
 			date.setDate(this._getDaysInMonth(date.getFullYear(), date.getMonth()));
+		}
 		return this._isInRange(inst, date);
 	},
 
 	/* Is the given date in the accepted range? */
 	_isInRange: function(inst, date) {
-		var minDate = this._getMinMaxDate(inst, 'min');
-		var maxDate = this._getMinMaxDate(inst, 'max');
+		var yearSplit, currentYear,
+			minDate = this._getMinMaxDate(inst, "min"),
+			maxDate = this._getMinMaxDate(inst, "max"),
+			minYear = null,
+			maxYear = null,
+			years = this._get(inst, "yearRange");
+			if (years){
+				yearSplit = years.split(":");
+				currentYear = new Date().getFullYear();
+				minYear = parseInt(yearSplit[0], 10);
+				maxYear = parseInt(yearSplit[1], 10);
+				if ( yearSplit[0].match(/[+\-].*/) ) {
+					minYear += currentYear;
+				}
+				if ( yearSplit[1].match(/[+\-].*/) ) {
+					maxYear += currentYear;
+				}
+			}
+
 		return ((!minDate || date.getTime() >= minDate.getTime()) &&
-			(!maxDate || date.getTime() <= maxDate.getTime()));
+			(!maxDate || date.getTime() <= maxDate.getTime()) &&
+			(!minYear || date.getFullYear() >= minYear) &&
+			(!maxYear || date.getFullYear() <= maxYear));
 	},
 
 	/* Provide the configuration settings for formatting/parsing. */
 	_getFormatConfig: function(inst) {
-		var shortYearCutoff = this._get(inst, 'shortYearCutoff');
-		shortYearCutoff = (typeof shortYearCutoff != 'string' ? shortYearCutoff :
+		var shortYearCutoff = this._get(inst, "shortYearCutoff");
+		shortYearCutoff = (typeof shortYearCutoff !== "string" ? shortYearCutoff :
 			new Date().getFullYear() % 100 + parseInt(shortYearCutoff, 10));
 		return {shortYearCutoff: shortYearCutoff,
-			dayNamesShort: this._get(inst, 'dayNamesShort'), dayNames: this._get(inst, 'dayNames'),
-			monthNamesShort: this._get(inst, 'monthNamesShort'), monthNames: this._get(inst, 'monthNames')};
+			dayNamesShort: this._get(inst, "dayNamesShort"), dayNames: this._get(inst, "dayNames"),
+			monthNamesShort: this._get(inst, "monthNamesShort"), monthNames: this._get(inst, "monthNames")};
 	},
 
 	/* Format the given date for display. */
@@ -1763,10 +1951,10 @@ $.extend(Datepicker.prototype, {
 			inst.currentMonth = inst.selectedMonth;
 			inst.currentYear = inst.selectedYear;
 		}
-		var date = (day ? (typeof day == 'object' ? day :
+		var date = (day ? (typeof day === "object" ? day :
 			this._daylightSavingAdjust(new Date(year, month, day))) :
 			this._daylightSavingAdjust(new Date(inst.currentYear, inst.currentMonth, inst.currentDay)));
-		return this.formatDate(this._get(inst, 'dateFormat'), date, this._getFormatConfig(inst));
+		return this.formatDate(this._get(inst, "dateFormat"), date, this._getFormatConfig(inst));
 	}
 });
 
@@ -1774,20 +1962,28 @@ $.extend(Datepicker.prototype, {
  * Bind hover events for datepicker elements.
  * Done via delegate so the binding only occurs once in the lifetime of the parent div.
  * Global instActive, set by _updateDatepicker allows the handlers to find their way back to the active picker.
- */ 
+ */
 function bindHover(dpDiv) {
-	var selector = 'button, .ui-datepicker-prev, .ui-datepicker-next, .ui-datepicker-calendar td a';
-	return dpDiv.delegate(selector, 'mouseout', function() {
-			$(this).removeClass('ui-state-hover');
-			if (this.className.indexOf('ui-datepicker-prev') != -1) $(this).removeClass('ui-datepicker-prev-hover');
-			if (this.className.indexOf('ui-datepicker-next') != -1) $(this).removeClass('ui-datepicker-next-hover');
+	var selector = "button, .ui-datepicker-prev, .ui-datepicker-next, .ui-datepicker-calendar td a";
+	return dpDiv.delegate(selector, "mouseout", function() {
+			$(this).removeClass("ui-state-hover");
+			if (this.className.indexOf("ui-datepicker-prev") !== -1) {
+				$(this).removeClass("ui-datepicker-prev-hover");
+			}
+			if (this.className.indexOf("ui-datepicker-next") !== -1) {
+				$(this).removeClass("ui-datepicker-next-hover");
+			}
 		})
-		.delegate(selector, 'mouseover', function(){
+		.delegate(selector, "mouseover", function(){
 			if (!$.datepicker._isDisabledDatepicker( instActive.inline ? dpDiv.parent()[0] : instActive.input[0])) {
-				$(this).parents('.ui-datepicker-calendar').find('a').removeClass('ui-state-hover');
-				$(this).addClass('ui-state-hover');
-				if (this.className.indexOf('ui-datepicker-prev') != -1) $(this).addClass('ui-datepicker-prev-hover');
-				if (this.className.indexOf('ui-datepicker-next') != -1) $(this).addClass('ui-datepicker-next-hover');
+				$(this).parents(".ui-datepicker-calendar").find("a").removeClass("ui-state-hover");
+				$(this).addClass("ui-state-hover");
+				if (this.className.indexOf("ui-datepicker-prev") !== -1) {
+					$(this).addClass("ui-datepicker-prev-hover");
+				}
+				if (this.className.indexOf("ui-datepicker-next") !== -1) {
+					$(this).addClass("ui-datepicker-next-hover");
+				}
 			}
 		});
 }
@@ -1795,40 +1991,48 @@ function bindHover(dpDiv) {
 /* jQuery extend now ignores nulls! */
 function extendRemove(target, props) {
 	$.extend(target, props);
-	for (var name in props)
-		if (props[name] == null || props[name] == undefined)
+	for (var name in props) {
+		if (props[name] == null) {
 			target[name] = props[name];
+		}
+	}
 	return target;
-};
+}
 
 /* Invoke the datepicker functionality.
    @param  options  string - a command, optionally followed by additional parameters or
-	                Object - settings for attaching new datepicker functionality
+					Object - settings for attaching new datepicker functionality
    @return  jQuery object */
 $.fn.datepicker = function(options){
-	
+
 	/* Verify an empty collection wasn't passed - Fixes #6976 */
 	if ( !this.length ) {
 		return this;
 	}
-	
+
 	/* Initialise the date picker. */
 	if (!$.datepicker.initialized) {
-		$(document).mousedown($.datepicker._checkExternalClick).
-			find(document.body).append($.datepicker.dpDiv);
+		$(document).mousedown($.datepicker._checkExternalClick);
 		$.datepicker.initialized = true;
 	}
 
+	/* Append datepicker main container to body if not exist. */
+	if ($("#"+$.datepicker._mainDivId).length === 0) {
+		$("body").append($.datepicker.dpDiv);
+	}
+
 	var otherArgs = Array.prototype.slice.call(arguments, 1);
-	if (typeof options == 'string' && (options == 'isDisabled' || options == 'getDate' || options == 'widget'))
-		return $.datepicker['_' + options + 'Datepicker'].
+	if (typeof options === "string" && (options === "isDisabled" || options === "getDate" || options === "widget")) {
+		return $.datepicker["_" + options + "Datepicker"].
 			apply($.datepicker, [this[0]].concat(otherArgs));
-	if (options == 'option' && arguments.length == 2 && typeof arguments[1] == 'string')
-		return $.datepicker['_' + options + 'Datepicker'].
+	}
+	if (options === "option" && arguments.length === 2 && typeof arguments[1] === "string") {
+		return $.datepicker["_" + options + "Datepicker"].
 			apply($.datepicker, [this[0]].concat(otherArgs));
+	}
 	return this.each(function() {
-		typeof options == 'string' ?
-			$.datepicker['_' + options + 'Datepicker'].
+		typeof options === "string" ?
+			$.datepicker["_" + options + "Datepicker"].
 				apply($.datepicker, [this].concat(otherArgs)) :
 			$.datepicker._attachDatepicker(this, options);
 	});
@@ -1837,10 +2041,10 @@ $.fn.datepicker = function(options){
 $.datepicker = new Datepicker(); // singleton instance
 $.datepicker.initialized = false;
 $.datepicker.uuid = new Date().getTime();
-$.datepicker.version = "1.9.0";
+$.datepicker.version = "1.10.1";
 
 // Workaround for #4055
 // Add another global to avoid noConflict issues with inline event handlers
-window['DP_jQuery_' + dpuuid] = $;
+window["DP_jQuery_" + dpuuid] = $;
 
 })(jQuery);