/**
 * Copyright (c) 2007 Kelvin Luck (http://www.kelvinluck.com/)
 * Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php) 
 * and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
 *
 * $Id: jquery.datePicker.js 3739 2007-10-25 13:55:30Z kelvin.luck $
 **/

(function($){
    
	$.fn.extend({
/**
 * Render a calendar table into any matched elements.
 * 
 * @param Object s (optional) Customize your calendars.
 * @option Number month The month to render (NOTE that months are zero based). Default is today's month.
 * @option Number year The year to render. Default is today's year.
 * @option Function renderCallback A reference to a function that is called as each cell is rendered and which can add classes and event listeners to the created nodes. Default is no callback.
 * @option Number showHeader Whether or not to show the header row, possible values are: $.dpConst.SHOW_HEADER_NONE (no header), $.dpConst.SHOW_HEADER_SHORT (first letter of each day) and $.dpConst.SHOW_HEADER_LONG (full name of each day). Default is $.dpConst.SHOW_HEADER_SHORT.
 * @option String hoverClass The class to attach to each cell when you hover over it (to allow you to use hover effects in IE6 which doesn't support the :hover pseudo-class on elements other than links). Default is dp-hover. Pass false if you don't want a hover class.
 * @type jQuery
 * @name renderCalendar
 * @cat plugins/datePicker
 * @author Kelvin Luck (http://www.kelvinluck.com/)
 *
 * @example $('#calendar-me').renderCalendar({month:0, year:2007});
 * @desc Renders a calendar displaying January 2007 into the element with an id of calendar-me.
 *
 * @example
 * var testCallback = function($td, thisDate, month, year)
 * {
 * if ($td.is('.current-month') && thisDate.getDay() == 4) {
 *		var d = thisDate.getDate();
 *		$td.bind(
 *			'click',
 *			function()
 *			{
 *				alert('You clicked on ' + d + '/' + (Number(month)+1) + '/' + year);
 *			}
 *		).addClass('thursday');
 *	} else if (thisDate.getDay() == 5) {
 *		$td.html('Friday the ' + $td.html() + 'th');
 *	}
 * }
 * $('#calendar-me').renderCalendar({month:0, year:2007, renderCallback:testCallback});
 * 
 * @desc Renders a calendar displaying January 2007 into the element with an id of calendar-me. Every Thursday in the current month has a class of "thursday" applied to it, is clickable and shows an alert when clicked. Every Friday on the calendar has the number inside replaced with text.
 **/
		renderCalendar  :   function(s)
		{
			var dc = function(a)
			{
				return document.createElement(a);
			};
			
			s = $.extend(
				{
					month			: null,
					year			: null,
					renderCallback	: null,
					showHeader		: $.dpConst.SHOW_HEADER_SHORT,
					dpController	: null,
					hoverClass		: 'dp-hover'
				}
				, s
			);
			
			if (s.showHeader != $.dpConst.SHOW_HEADER_NONE) {
				var headRow = $(dc('tr'));
				for (var i=Date.firstDayOfWeek; i<Date.firstDayOfWeek+7; i++) {
					var weekday = i%7;
					var day = Date.dayNames[weekday];
					headRow.append(
						jQuery(dc('th')).attr({'scope':'col', 'abbr':day, 'title':day, 'class':(weekday == 0 || weekday == 6 ? 'weekend' : 'weekday')}).html(s.showHeader == $.dpConst.SHOW_HEADER_SHORT ? day.substr(0, 1) : day)
					);
				}
			};
			
			var calendarTable = $(dc('table'))
									.attr(
										{
											'cellspacing':2,
											'className':'jCalendar'
										}
									)
									.append(
										(s.showHeader != $.dpConst.SHOW_HEADER_NONE ? 
											$(dc('thead'))
												.append(headRow)
											:
											dc('thead')
										)
									);
			var tbody = $(dc('tbody'));
			
			var today = (new Date()).zeroTime();
			
			var month = s.month == undefined ? today.getMonth() : s.month;
			var year = s.year || today.getFullYear();
			
			var currentDate = new Date(year, month, 1);
			
			
			var firstDayOffset = Date.firstDayOfWeek - currentDate.getDay() + 1;
			if (firstDayOffset > 1) firstDayOffset -= 7;
			var weeksToDraw = Math.ceil(( (-1*firstDayOffset+1) + currentDate.getDaysInMonth() ) /7);
			currentDate.addDays(firstDayOffset-1);
			
			var doHover = function()
			{
				if (s.hoverClass) {
					$(this).addClass(s.hoverClass);
				}
			};
			var unHover = function()
			{
				if (s.hoverClass) {
					$(this).removeClass(s.hoverClass);
				}
			};
			
			var w = 0;
			while (w++<weeksToDraw) {
				var r = jQuery(dc('tr'));
				for (var i=0; i<7; i++) {
					var thisMonth = currentDate.getMonth() == month;
					var d = $(dc('td'))
								.text(currentDate.getDate() + '')
								.attr('className', (thisMonth ? 'current-month ' : 'other-month ') +
													(currentDate.isWeekend() ? 'weekend ' : 'weekday ') +
													(thisMonth && currentDate.getTime() == today.getTime() ? 'today ' : '')
								)
								.hover(doHover, unHover)
							;
					if (s.renderCallback) {
						s.renderCallback(d, currentDate, month, year);
					}
					r.append(d);
					currentDate.addDays(1);
				}
				tbody.append(r);
			}
			calendarTable.append(tbody);
			
			return this.each(
				function()
				{
					$(this).empty().append(calendarTable);
				}
			);
		},
/**
 * Create a datePicker associated with each of the matched elements.
 *
 * The matched element will receive a few custom events with the following signatures:
 *
 * dateSelected(event, date, $td, status)
 * Triggered when a date is selected. event is a reference to the event, date is the Date selected, $td is a jquery object wrapped around the TD that was clicked on and status is whether the date was selected (true) or deselected (false)
 * 
 * dpClosed(event, selected)
 * Triggered when the date picker is closed. event is a reference to the event and selected is an Array containing Date objects.
 *
 * dpMonthChanged(event, displayedMonth, displayedYear)
 * Triggered when the month of the popped up calendar is changed. event is a reference to the event, displayedMonth is the number of the month now displayed (zero based) and displayedYear is the year of the month.
 *
 * dpDisplayed(event, $datePickerDiv)
 * Triggered when the date picker is created. $datePickerDiv is the div containing the date picker. Use this event to add custom content/ listeners to the popped up date picker.
 *
 * @param Object s (optional) Customize your date pickers.
 * @option Number month The month to render when the date picker is opened (NOTE that months are zero based). Default is today's month.
 * @option Number year The year to render when the date picker is opened. Default is today's year.
 * @option String startDate The first date date can be selected.
 * @option String endDate The last date that can be selected.
 * @option Boolean inline Whether to create the datePicker as inline (e.g. always on the page) or as a model popup. Default is false (== modal popup)
 * @option Boolean createButton Whether to create a .dp-choose-date anchor directly after the matched element which when clicked will trigger the showing of the date picker. Default is true.
 * @option Boolean showYearNavigation Whether to display buttons which allow the user to navigate through the months a year at a time. Default is true.
 * @option Boolean closeOnSelect Whether to close the date picker when a date is selected. Default is true.
 * @option Boolean displayClose Whether to create a "Close" button within the date picker popup. Default is false.
 * @option Boolean selectMultiple Whether a user should be able to select multiple dates with this date picker. Default is false.
 * @option Boolean clickInput If the matched element is an input type="text" and this option is true then clicking on the input will cause the date picker to appear.
 * @option Number verticalPosition The vertical alignment of the popped up date picker to the matched element. One of $.dpConst.POS_TOP and $.dpConst.POS_BOTTOM. Default is $.dpConst.POS_TOP.
 * @option Number horizontalPosition The horizontal alignment of the popped up date picker to the matched element. One of $.dpConst.POS_LEFT and $.dpConst.POS_RIGHT.
 * @option Number verticalOffset The number of pixels offset from the defined verticalPosition of this date picker that it should pop up in. Default in 0.
 * @option Number horizontalOffset The number of pixels offset from the defined horizontalPosition of this date picker that it should pop up in. Default in 0.
 * @option (Function|Array) renderCallback A reference to a function (or an array of seperate functions) that is called as each cell is rendered and which can add classes and event listeners to the created nodes. Each callback function will receive four arguments; a jquery object wrapping the created TD, a Date object containing the date this TD represents, a number giving the currently rendered month and a number giving the currently rendered year. Default is no callback.
 * @option String hoverClass The class to attach to each cell when you hover over it (to allow you to use hover effects in IE6 which doesn't support the :hover pseudo-class on elements other than links). Default is dp-hover. Pass false if you don't want a hover class.
 * @type jQuery
 * @name datePicker
 * @cat plugins/datePicker
 * @author Kelvin Luck (http://www.kelvinluck.com/)
 *
 * @example $('input.date-picker').datePicker();
 * @desc Creates a date picker button next to all matched input elements. When the button is clicked on the value of the selected date will be placed in the corresponding input (formatted according to Date.format).
 *
 * @example demo/index.html
 * @desc See the projects homepage for many more complex examples...
 **/
		datePicker : function(s)
		{			
			if (!$.event._dpCache) $.event._dpCache = [];
			
			// initialise the date picker controller with the relevant settings...
			s = $.extend(
				{
					month				: undefined,
					year				: undefined,
					startDate			: undefined,
					endDate				: undefined,
					inline				: false,
					renderCallback		: [],
					createButton		: true,
					showYearNavigation	: true,
					closeOnSelect		: true,
					displayClose		: false,
					selectMultiple		: false,
					clickInput			: false,
					verticalPosition	: $.dpConst.POS_TOP,
					horizontalPosition	: $.dpConst.POS_LEFT,
					verticalOffset		: 0,
					horizontalOffset	: 0,
					hoverClass			: 'dp-hover'
				}
				, s
			);
			
			return this.each(
				function()
				{
					var $this = $(this);
					var alreadyExists = true;
					
					if (!this._dpId) {
						this._dpId = $.event.guid++;
						$.event._dpCache[this._dpId] = new DatePicker(this);
						alreadyExists = false;
					}
					
					if (s.inline) {
						s.createButton = false;
						s.displayClose = false;
						s.closeOnSelect = false;
						$this.empty();
					}
					
					var controller = $.event._dpCache[this._dpId];
					
					controller.init(s);
					
					if (!alreadyExists && s.createButton) {
						// create it!
						controller.button = $('<a href="#" class="dp-choose-date" title="' + $.dpText.TEXT_CHOOSE_DATE + '">' + $.dpText.TEXT_CHOOSE_DATE + '</a>')
								.bind(
									'click',
									function()
									{
										$this.dpDisplay(this);
										this.blur();
										return false;
									}
								);
						$this.after(controller.button);
					}
					
					if (!alreadyExists && $this.is(':text')) {
						$this
							.bind(
								'dateSelected',
								function(e, selectedDate, $td)
								{
									this.value = selectedDate.asString();
								}
							).bind(
								'change',
								function()
								{
									var d = Date.fromString(this.value);
									if (d) {
										controller.setSelected(d, true, true);
									}
								}
							);
						if (s.clickInput) {
							$this.bind(
								'click',
								function()
								{
									$this.dpDisplay();
								}
							);
						}
						var d = Date.fromString(this.value);
						if (this.value != '' && d) {
							controller.setSelected(d, true, true);
						}
					}
					
					$this.addClass('dp-applied');
					
				}
			)
		},
/**
 * Disables or enables this date picker
 *
 * @param Boolean s Whether to disable (true) or enable (false) this datePicker
 * @type jQuery
 * @name dpSetDisabled
 * @cat plugins/datePicker
 * @author Kelvin Luck (http://www.kelvinluck.com/)
 *
 * @example $('.date-picker').datePicker();
 * $('.date-picker').dpSetDisabled(true);
 * @desc Prevents this date picker from displaying and adds a class of dp-disabled to it (and it's associated button if it has one) for styling purposes. If the matched element is an input field then it will also set the disabled attribute to stop people directly editing the field.
 **/
		dpSetDisabled : function(s)
		{
			return _w.call(this, 'setDisabled', s);
		},
/**
 * Updates the first selectable date for any date pickers on any matched elements.
 *
 * @param String d A string representing the first selectable date (formatted according to Date.format).
 * @type jQuery
 * @name dpSetStartDate
 * @cat plugins/datePicker
 * @author Kelvin Luck (http://www.kelvinluck.com/)
 *
 * @example $('.date-picker').datePicker();
 * $('.date-picker').dpSetStartDate('01/01/2000');
 * @desc Creates a date picker associated with all elements with a class of "date-picker" then sets the first selectable date for each of these to the first day of the millenium.
 **/
		dpSetStartDate : function(d)
		{
			return _w.call(this, 'setStartDate', d);
		},
/**
 * Updates the last selectable date for any date pickers on any matched elements.
 *
 * @param String d A string representing the last selectable date (formatted according to Date.format).
 * @type jQuery
 * @name dpSetEndDate
 * @cat plugins/datePicker
 * @author Kelvin Luck (http://www.kelvinluck.com/)
 *
 * @example $('.date-picker').datePicker();
 * $('.date-picker').dpSetEndDate('01/01/2010');
 * @desc Creates a date picker associated with all elements with a class of "date-picker" then sets the last selectable date for each of these to the first Janurary 2010.
 **/
		dpSetEndDate : function(d)
		{
			return _w.call(this, 'setEndDate', d);
		},
/**
 * Gets a list of Dates currently selected by this datePicker. This will be an empty array if no dates are currently selected or NULL if there is no datePicker associated with the matched element.
 *
 * @type Array
 * @name dpGetSelected
 * @cat plugins/datePicker
 * @author Kelvin Luck (http://www.kelvinluck.com/)
 *
 * @example $('.date-picker').datePicker();
 * alert($('.date-picker').dpGetSelected());
 * @desc Will alert an empty array (as nothing is selected yet)
 **/
		dpGetSelected : function()
		{
			var c = _getController(this[0]);
			if (c) {
				return c.getSelected();
			}
			return null;
		},
/**
 * Selects or deselects a date on any matched element's date pickers. Deselcting is only useful on date pickers where selectMultiple==true. Selecting will only work if the passed date is within the startDate and endDate boundries for a given date picker.
 *
 * @param String d A string representing the date you want to select (formatted according to Date.format).
 * @param Boolean v Whether you want to select (true) or deselect (false) this date. Optional - default = true.
 * @param Boolean m Whether you want the date picker to open up on the month of this date when it is next opened. Optional - default = true.
 * @type jQuery
 * @name dpSetSelected
 * @cat plugins/datePicker
 * @author Kelvin Luck (http://www.kelvinluck.com/)
 *
 * @example $('.date-picker').datePicker();
 * $('.date-picker').dpSetSelected('01/01/2010');
 * @desc Creates a date picker associated with all elements with a class of "date-picker" then sets the selected date on these date pickers to the first Janurary 2010. When the date picker is next opened it will display Janurary 2010.
 **/
		dpSetSelected : function(d, v, m)
		{
			if (v == undefined) v=true;
			if (m == undefined) m=true;
			return _w.call(this, 'setSelected', Date.fromString(d), v, m);
		},
/**
 * Sets the month that will be displayed when the date picker is next opened. If the passed month is before startDate then the month containing startDate will be displayed instead. If the passed month is after endDate then the month containing the endDate will be displayed instead.
 *
 * @param Number m The month you want the date picker to display. Optional - defaults to the currently displayed month.
 * @param Number y The year you want the date picker to display. Optional - defaults to the currently displayed year.
 * @type jQuery
 * @name dpSetDisplayedMonth
 * @cat plugins/datePicker
 * @author Kelvin Luck (http://www.kelvinluck.com/)
 *
 * @example $('.date-picker').datePicker();
 * $('.date-picker').dpSetDisplayedMonth(10, 2008);
 * @desc Creates a date picker associated with all elements with a class of "date-picker" then sets the selected date on these date pickers to the first Janurary 2010. When the date picker is next opened it will display Janurary 2010.
 **/
		dpSetDisplayedMonth : function(m, y)
		{
			return _w.call(this, 'setDisplayedMonth', Number(m), Number(y));
		},
/**
 * Displays the date picker associated with the matched elements. Since only one date picker can be displayed at once then the date picker associated with the last matched element will be the one that is displayed.
 *
 * @param HTMLElement e An element that you want the date picker to pop up relative in position to. Optional - default behaviour is to pop up next to the element associated with this date picker.
 * @type jQuery
 * @name dpDisplay
 * @cat plugins/datePicker
 * @author Kelvin Luck (http://www.kelvinluck.com/)
 *
 * @example $('#date-picker').datePicker();
 * $('#date-picker').dpDisplay();
 * @desc Creates a date picker associated with the element with an id of date-picker and then causes it to pop up.
 **/
		dpDisplay : function(e)
		{
			return _w.call(this, 'display', e);
		},
/**
 * Sets a function or array of functions that is called when each TD of the date picker popup is rendered to the page
 *
 * @param (Function|Array) a A function or an array of functions that are called when each td is rendered. Each function will receive four arguments; a jquery object wrapping the created TD, a Date object containing the date this TD represents, a number giving the currently rendered month and a number giving the currently rendered year.
 * @type jQuery
 * @name dpSetRenderCallback
 * @cat plugins/datePicker
 * @author Kelvin Luck (http://www.kelvinluck.com/)
 *
 * @example $('#date-picker').datePicker();
 * $('#date-picker').dpSetRenderCallback(function($td, thisDate, month, year)
 * {
 * 	// do stuff as each td is rendered dependant on the date in the td and the displayed month and year
 * });
 * @desc Creates a date picker associated with the element with an id of date-picker and then creates a function which is called as each td is rendered when this date picker is displayed.
 **/
		dpSetRenderCallback : function(a)
		{
			return _w.call(this, 'setRenderCallback', a);
		},
/**
 * Sets the position that the datePicker will pop up (relative to it's associated element)
 *
 * @param Number v The vertical alignment of the created date picker to it's associated element. Possible values are $.dpConst.POS_TOP and $.dpConst.POS_BOTTOM
 * @param Number h The horizontal alignment of the created date picker to it's associated element. Possible values are $.dpConst.POS_LEFT and $.dpConst.POS_RIGHT
 * @type jQuery
 * @name dpSetPosition
 * @cat plugins/datePicker
 * @author Kelvin Luck (http://www.kelvinluck.com/)
 *
 * @example $('#date-picker').datePicker();
 * $('#date-picker').dpSetPosition($.dpConst.POS_BOTTOM, $.dpConst.POS_RIGHT);
 * @desc Creates a date picker associated with the element with an id of date-picker and makes it so that when this date picker pops up it will be bottom and right aligned to the #date-picker element.
 **/
		dpSetPosition : function(v, h)
		{
			return _w.call(this, 'setPosition', v, h);
		},
/**
 * Sets the offset that the popped up date picker will have from it's default position relative to it's associated element (as set by dpSetPosition)
 *
 * @param Number v The vertical offset of the created date picker.
 * @param Number h The horizontal offset of the created date picker.
 * @type jQuery
 * @name dpSetOffset
 * @cat plugins/datePicker
 * @author Kelvin Luck (http://www.kelvinluck.com/)
 *
 * @example $('#date-picker').datePicker();
 * $('#date-picker').dpSetOffset(-20, 200);
 * @desc Creates a date picker associated with the element with an id of date-picker and makes it so that when this date picker pops up it will be 20 pixels above and 200 pixels to the right of it's default position.
 **/
		dpSetOffset : function(v, h)
		{
			return _w.call(this, 'setOffset', v, h);
		},
/**
 * Closes the open date picker associated with this element.
 *
 * @type jQuery
 * @name dpClose
 * @cat plugins/datePicker
 * @author Kelvin Luck (http://www.kelvinluck.com/)
 *
 * @example $('.date-pick')
 *		.datePicker()
 *		.bind(
 *			'focus',
 *			function()
 *			{
 *				$(this).dpDisplay();
 *			}
 *		).bind(
 *			'blur',
 *			function()
 *			{
 *				$(this).dpClose();
 *			}
 *		);
 * @desc Creates a date picker and makes it appear when the relevant element is focused and disappear when it is blurred.
 **/
		dpClose : function()
		{
			return _w.call(this, '_closeCalendar', false, this[0]);
		},
		// private function called on unload to clean up any expandos etc and prevent memory links...
		_dpDestroy : function()
		{
			// TODO - implement this?
		}
	});
	
	// private internal function to cut down on the amount of code needed where we forward
	// dp* methods on the jQuery object on to the relevant DatePicker controllers...
	var _w = function(f, a1, a2, a3)
	{
		return this.each(
			function()
			{
				var c = _getController(this);
				if (c) {
					c[f](a1, a2, a3);
				}
			}
		);
	};
	
	function DatePicker(ele)
	{
		this.ele = ele;
		
		// initial values...
		this.displayedMonth		=	null;
		this.displayedYear		=	null;
		this.startDate			=	null;
		this.endDate			=	null;
		this.showYearNavigation	=	null;
		this.closeOnSelect		=	null;
		this.displayClose		=	null;
		this.selectMultiple		=	null;
		this.verticalPosition	=	null;
		this.horizontalPosition	=	null;
		this.verticalOffset		=	null;
		this.horizontalOffset	=	null;
		this.button				=	null;
		this.renderCallback		=	[];
		this.selectedDates		=	{};
		this.inline				=	null;
		this.context			=	'#dp-popup';
	};
	$.extend(
		DatePicker.prototype,
		{	
			init : function(s)
			{
				this.setStartDate(s.startDate);
				this.setEndDate(s.endDate);
				this.setDisplayedMonth(Number(s.month), Number(s.year));
				this.setRenderCallback(s.renderCallback);
				this.showYearNavigation = s.showYearNavigation;
				this.closeOnSelect = s.closeOnSelect;
				this.displayClose = s.displayClose;
				this.selectMultiple = s.selectMultiple;
				this.verticalPosition = s.verticalPosition;
				this.horizontalPosition = s.horizontalPosition;
				this.hoverClass = s.hoverClass;
				this.setOffset(s.verticalOffset, s.horizontalOffset);
				this.inline = s.inline;
				if (this.inline) {
					this.context = this.ele;
					this.display();
				}
			},
			setStartDate : function(d)
			{
				if (d) {
					this.startDate = Date.fromString(d);
				}
				if (!this.startDate) {
					this.startDate = (new Date()).zeroTime();
				}
				this.setDisplayedMonth(this.displayedMonth, this.displayedYear);
			},
			setEndDate : function(d)
			{
				if (d) {
					this.endDate = Date.fromString(d);
				}
				if (!this.endDate) {
					this.endDate = (new Date('12/31/2999')); // using the JS Date.parse function which expects mm/dd/yyyy
				}
				if (this.endDate.getTime() < this.startDate.getTime()) {
					this.endDate = this.startDate;
				}
				this.setDisplayedMonth(this.displayedMonth, this.displayedYear);
			},
			setPosition : function(v, h)
			{
				this.verticalPosition = v;
				this.horizontalPosition = h;
			},
			setOffset : function(v, h)
			{
				this.verticalOffset = parseInt(v) || 0;
				this.horizontalOffset = parseInt(h) || 0;
			},
			setDisabled : function(s)
			{
				$e = $(this.ele);
				$e[s ? 'addClass' : 'removeClass']('dp-disabled');
				if (this.button) {
					$but = $(this.button);
					$but[s ? 'addClass' : 'removeClass']('dp-disabled');
					$but.attr('title', s ? '' : $.dpText.TEXT_CHOOSE_DATE);
				}
				if ($e.is(':text')) {
					$e.attr('disabled', s ? 'disabled' : '');
				}
			},
			setDisplayedMonth : function(m, y)
			{
				if (this.startDate == undefined || this.endDate == undefined) {
					return;
				}
				var s = new Date(this.startDate.getTime());
				s.setDate(1);
				var e = new Date(this.endDate.getTime());
				e.setDate(1);
				
				var t;
				if ((!m && !y) || (isNaN(m) && isNaN(y))) {
					// no month or year passed - default to current month
					t = new Date().zeroTime();
					t.setDate(1);
				} else if (isNaN(m)) {
					// just year passed in - presume we want the displayedMonth
					t = new Date(y, this.displayedMonth, 1);
				} else if (isNaN(y)) {
					// just month passed in - presume we want the displayedYear
					t = new Date(this.displayedYear, m, 1);
				} else {
					// year and month passed in - that's the date we want!
					t = new Date(y, m, 1)
				}
				
				// check if the desired date is within the range of our defined startDate and endDate
				if (t.getTime() < s.getTime()) {
					t = s;
				} else if (t.getTime() > e.getTime()) {
					t = e;
				}
				this.displayedMonth = t.getMonth();
				this.displayedYear = t.getFullYear();
			},
			setSelected : function(d, v, moveToMonth)
			{
				if (this.selectMultiple == false) {
					this.selectedDates = {};
					$('td.selected', this.context).removeClass('selected');
				}
				if (moveToMonth) {
					this.setDisplayedMonth(d.getMonth(), d.getFullYear());
				}
				this.selectedDates[d.toString()] = v;
			},
			isSelected : function(d)
			{
				return this.selectedDates[d.toString()];
			},
			getSelected : function()
			{
				var r = [];
				for(s in this.selectedDates) {
					if (this.selectedDates[s] == true) {
						r.push(Date.parse(s));
					}
				}
				return r;
			},
			display : function(eleAlignTo)
			{
				if ($(this.ele).is('.dp-disabled')) return;
				
				eleAlignTo = eleAlignTo || this.ele;
				var c = this;
				var $ele = $(eleAlignTo);
				var eleOffset = $ele.offset();
				
				var $createIn;
				var attrs;
				var attrsCalendarHolder;
				var cssRules;
				
				if (c.inline) {
					$createIn = $(this.ele);
					attrs = {
						'id'		:	'calendar-' + this.ele._dpId,
						'className'	:	'dp-popup dp-popup-inline'
					};
					cssRules = {
					};
				} else {
					$createIn = $('body');
					attrs = {
						'id'		:	'dp-popup',
						'className'	:	'dp-popup'
					};
					cssRules = {
						'top'	:	eleOffset.top + c.verticalOffset,
						'left'	:	eleOffset.left + c.horizontalOffset
					};
					
					var _checkMouse = function(e)
					{
						var el = e.target;
						var cal = $('#dp-popup')[0];
						
						while (true){
							if (el == cal) {
								return true;
							} else if (el == document) {
								c._closeCalendar();
								return false;
							} else {
								el = $(el).parent()[0];
							}
						}
					};
					this._checkMouse = _checkMouse;
				
					this._closeCalendar(true);
				}
				
				
				$createIn
					.append(
						$('<div></div>')
							.attr(attrs)
							.css(cssRules)
							.append(
								$('<h2></h2>'),
								$('<div class="dp-nav-prev"></div>')
									.append(
										$('<a class="dp-nav-prev-year" href="#" title="' + $.dpText.TEXT_PREV_YEAR + '">&lt;&lt;</a>')
											.bind(
												'click',
												function()
												{
													return c._displayNewMonth.call(c, this, 0, -1);
												}
											),
										$('<a class="dp-nav-prev-month" href="#" title="' + $.dpText.TEXT_PREV_MONTH + '">&lt;</a>')
											.bind(
												'click',
												function()
												{
													return c._displayNewMonth.call(c, this, -1, 0);
												}
											)
									),
								$('<div class="dp-nav-next"></div>')
									.append(
										$('<a class="dp-nav-next-year" href="#" title="' + $.dpText.TEXT_NEXT_YEAR + '">&gt;&gt;</a>')
											.bind(
												'click',
												function()
												{
													return c._displayNewMonth.call(c, this, 0, 1);
												}
											),
										$('<a class="dp-nav-next-month" href="#" title="' + $.dpText.TEXT_NEXT_MONTH + '">&gt;</a>')
											.bind(
												'click',
												function()
												{
													return c._displayNewMonth.call(c, this, 1, 0);
												}
											)
									),
								$('<div></div>')
									.attr('className', 'dp-calendar')
							)
							.bgIframe()
						);
					
				var $pop = this.inline ? $('.dp-popup', this.context) : $('#dp-popup');
				
				if (this.showYearNavigation == false) {
					$('.dp-nav-prev-year, .dp-nav-next-year', c.context).css('display', 'none');
				}
				if (this.displayClose) {
					$pop.append(
						$('<a href="#" id="dp-close">' + $.dpText.TEXT_CLOSE + '</a>')
							.bind(
								'click',
								function()
								{
									c._closeCalendar();
									return false;
								}
							)
					);
				}
				c._renderCalendar();
				
				$(this.ele).trigger('dpDisplayed', $pop);
				
				if (!c.inline) {
					if (this.verticalPosition == $.dpConst.POS_BOTTOM) {
						$pop.css('top', eleOffset.top + $ele.height() - $pop.height() + c.verticalOffset);
					}
					if (this.horizontalPosition == $.dpConst.POS_RIGHT) {
						$pop.css('left', eleOffset.left + $ele.width() - $pop.width() + c.horizontalOffset);
					}
					$(document).bind('mousedown', this._checkMouse);
				}
			},
			setRenderCallback : function(a)
			{
				if (a && typeof(a) == 'function') {
					a = [a];
				}
				this.renderCallback = this.renderCallback.concat(a);
			},
			cellRender : function ($td, thisDate, month, year) {
				var c = this.dpController;
				var d = new Date(thisDate.getTime());
				
				// add our click handlers to deal with it when the days are clicked...
				
				$td.bind(
					'click',
					function()
					{
						var $this = $(this);
						if (!$this.is('.disabled')) {
							c.setSelected(d, !$this.is('.selected') || !c.selectMultiple);
							var s = c.isSelected(d);
							$(c.ele).trigger('dateSelected', [d, $td, s]);
							$(c.ele).trigger('change');
							if (c.closeOnSelect) {
								c._closeCalendar();
							} else {
								$this[s ? 'addClass' : 'removeClass']('selected');
							}
						}
					}
				);
				
				if (c.isSelected(d)) {
					$td.addClass('selected');
				}
				
				// call any extra renderCallbacks that were passed in
				for (var i=0; i<c.renderCallback.length; i++) {
					c.renderCallback[i].apply(this, arguments);
				}
				
				
			},
			// ele is the clicked button - only proceed if it doesn't have the class disabled...
			// m and y are -1, 0 or 1 depending which direction we want to go in...
			_displayNewMonth : function(ele, m, y) 
			{
				if (!$(ele).is('.disabled')) {
					this.setDisplayedMonth(this.displayedMonth + m, this.displayedYear + y);
					this._clearCalendar();
					this._renderCalendar();
					$(this.ele).trigger('dpMonthChanged', [this.displayedMonth, this.displayedYear]);
				}
				ele.blur();
				return false;
			},
			_renderCalendar : function()
			{
				// set the title...
				$('h2', this.context).html(Date.monthNames[this.displayedMonth] + ' ' + this.displayedYear);
				
				// render the calendar...
				$('.dp-calendar', this.context).renderCalendar(
					{
						month			: this.displayedMonth,
						year			: this.displayedYear,
						renderCallback	: this.cellRender,
						dpController	: this,
						hoverClass		: this.hoverClass
					}
				);
				
				// update the status of the control buttons and disable dates before startDate or after endDate...

				// TODO: When should the year buttons be disabled? When you can't go forward a whole year from where you are or is that annoying?
				if (this.displayedYear == this.startDate.getFullYear() && this.displayedMonth == this.startDate.getMonth()) {
					$('.dp-nav-prev-year', this.context).addClass('disabled');
					$('.dp-nav-prev-month', this.context).addClass('disabled');
					$('.dp-calendar td.other-month', this.context).each(
						function()
						{
							var $this = $(this);
							if (Number($this.text()) > 20) {
								$this.addClass('disabled');
							}
						}
					);
					var d = this.startDate.getDate();
					$('.dp-calendar td.current-month', this.context).each(
						function()
						{
							var $this = $(this);
							if (Number($this.text()) < d) {
								$this.addClass('disabled');
							}
						}
					);
				} else {
					$('.dp-nav-prev-year', this.context).removeClass('disabled');
					$('.dp-nav-prev-month', this.context).removeClass('disabled');
					var d = this.startDate.getDate();
					if (d > 20) {
						// check if the startDate is last month as we might need to add some disabled classes...
						var sd = new Date(this.startDate.getTime());
						sd.addMonths(1);
						if (this.displayedYear == sd.getFullYear() && this.displayedMonth == sd.getMonth()) {
							$('dp-calendar td.other-month', this.context).each(
								function()
								{
									var $this = $(this);
									if (Number($this.text()) < d) {
										$this.addClass('disabled');
									}
								}
							);
						}
					}
				}
				if (this.displayedYear == this.endDate.getFullYear() && this.displayedMonth == this.endDate.getMonth()) {
					$('.dp-nav-next-year', this.context).addClass('disabled');
					$('.dp-nav-next-month', this.context).addClass('disabled');
					$('.dp-calendar td.other-month', this.context).each(
						function()
						{
							var $this = $(this);
							if (Number($this.text()) < 14) {
								$this.addClass('disabled');
							}
						}
					);
					var d = this.endDate.getDate();
					$('.dp-calendar td.current-month', this.context).each(
						function()
						{
							var $this = $(this);
							if (Number($this.text()) > d) {
								$this.addClass('disabled');
							}
						}
					);
				} else {
					$('.dp-nav-next-year', this.context).removeClass('disabled');
					$('.dp-nav-next-month', this.context).removeClass('disabled');
					var d = this.endDate.getDate();
					if (d < 13) {
						// check if the endDate is next month as we might need to add some disabled classes...
						var ed = new Date(this.endDate.getTime());
						ed.addMonths(-1);
						if (this.displayedYear == ed.getFullYear() && this.displayedMonth == ed.getMonth()) {
							$('.dp-calendar td.other-month', this.context).each(
								function()
								{
									var $this = $(this);
									if (Number($this.text()) > d) {
										$this.addClass('disabled');
									}
								}
							);
						}
					}
				}
			},
			_closeCalendar : function(programatic, ele)
			{
				if (!ele || ele == this.ele)
				{
					$(document).unbind('mousedown', this._checkMouse);
					this._clearCalendar();
					$('#dp-popup a').unbind();
					$('#dp-popup').empty().remove();
					if (!programatic) {
						$(this.ele).trigger('dpClosed', [this.getSelected()]);
					}
				}
			},
			// empties the current dp-calendar div and makes sure that all events are unbound
			// and expandos removed to avoid memory leaks...
			_clearCalendar : function()
			{
				// TODO.
				$('.dp-calendar td', this.context).unbind();
				$('.dp-calendar', this.context).empty();
			}
		}
	);
	
	// static constants
	$.dpConst = {
		SHOW_HEADER_NONE	:	0,
		SHOW_HEADER_SHORT	:	1,
		SHOW_HEADER_LONG	:	2,
		POS_TOP				:	0,
		POS_BOTTOM			:	1,
		POS_LEFT			:	0,
		POS_RIGHT			:	1
	};
	// localisable text
	$.dpText = {
		TEXT_PREV_YEAR		:	'Previous year',
		TEXT_PREV_MONTH		:	'Previous month',
		TEXT_NEXT_YEAR		:	'Next year',
		TEXT_NEXT_MONTH		:	'Next month',
		TEXT_CLOSE			:	'Close',
		TEXT_CHOOSE_DATE	:	'Choose date'
	};
	// version
	$.dpVersion = '$Id: jquery.datePicker.js 3739 2007-10-25 13:55:30Z kelvin.luck $';

	function _getController(ele)
	{
		if (ele._dpId) return $.event._dpCache[ele._dpId];
		return false;
	};
	
	// make it so that no error is thrown if bgIframe plugin isn't included (allows you to use conditional
	// comments to only include bgIframe where it is needed in IE without breaking this plugin).
	if ($.fn.bgIframe == undefined) {
		$.fn.bgIframe = function() {return this; };
	};


	// clean-up
	$(window)
		.bind('unload', function() {
			var els = $.event._dpCache || [];
			for (var i in els) {
				$(els[i].ele)._dpDestroy();
			}
		});
		
	
})(jQuery);





(function($) {

$.extend($.fn, {
	// http://docs.jquery.com/Plugins/Validation/validate
	validate: function( options ) {
		
		// if nothing is selected, return nothing; can't chain anyway
		if (!this.length) {
			options && options.debug && window.console && console.warn( "nothing selected, can't validate, returning nothing" );
			return;
		}
		
		// check if a validator for this form was already created
		var validator = $.data(this[0], 'validator');
		if ( validator ) {
			return validator;
		}
		
		validator = new $.validator( options, this[0] );
		$.data(this[0], 'validator', validator); 
		
		if ( validator.settings.onsubmit ) {
		
			// allow suppresing validation by adding a cancel class to the submit button
			this.find("input, button").filter(".cancel").click(function() {
				validator.cancelSubmit = true;
			});
		
			// validate the form on submit
			this.submit( function( event ) {
				if ( validator.settings.debug )
					// prevent form submit to be able to see console output
					event.preventDefault();
					
				function handle() {
					if ( validator.settings.submitHandler ) {
						validator.settings.submitHandler.call( validator, validator.currentForm );
						return false;
					}
					return true;
				}
					
				// prevent submit for invalid forms or custom submit handlers
				if ( validator.cancelSubmit ) {
					validator.cancelSubmit = false;
					return handle();
				}
				if ( validator.form() ) {
					if ( validator.pendingRequest ) {
						validator.formSubmitted = true;
						return false;
					}
					return handle();
				} else {
					validator.focusInvalid();
					return false;
				}
			});
		}
		
		return validator;
	},
	// http://docs.jquery.com/Plugins/Validation/valid
	valid: function() {
        if ( $(this[0]).is('form')) {
            return this.validate().form();
        } else {
            var valid = false;
            var validator = $(this[0].form).validate();
            this.each(function() {
				valid |= validator.element(this);
            });
            return valid;
        }
    },
	// attributes: space seperated list of attributes to retrieve and remove
	removeAttrs: function(attributes) {
		var result = {},
			$element = this;
		$.each(attributes.split(/\s/), function() {
			result[this] = $element.attr(this);
			$element.removeAttr(this);
		});
		return result;
	},
	// http://docs.jquery.com/Plugins/Validation/rules
	rules: function(command, argument) {
		var element = this[0];
		
		if (command) {
			var settings = $.data(element.form, 'validator').settings;
			var staticRules = settings.rules;
			var existingRules = $.validator.staticRules(element);
			switch(command) {
			case "add":
				$.extend(existingRules, $.validator.normalizeRule(argument));
				staticRules[element.name] = existingRules;
				if (argument.messages)
					settings.messages[element.name] = $.extend( settings.messages[element.name], argument.messages );
				break;
			case "remove":
				if (!argument) {
					delete staticRules[element.name];
					return existingRules;
				}
				var filtered = {};
				$.each(argument.split(/\s/), function(index, method) {
					filtered[method] = existingRules[method];
					delete existingRules[method];
				});
				return filtered;
			}
		}
		
		var data = $.validator.normalizeRules(
		$.extend(
			{},
			$.validator.metadataRules(element),
			$.validator.classRules(element),
			$.validator.attributeRules(element),
			$.validator.staticRules(element)
		), element);
		
		// make sure required is at front
		if (data.required) {
			var param = data.required;
			delete data.required;
			data = $.extend({required: param}, data);
		}
		
		return data;
	},
	// destructive add
	push: function( t ) {
		return this.setArray( this.add(t).get() );
	}
});

// Custom selectors
$.extend($.expr[":"], {
	// http://docs.jquery.com/Plugins/Validation/blank
	blank: function(a) {return !$.trim(a.value);},
	// http://docs.jquery.com/Plugins/Validation/filled
	filled: function(a) {return !!$.trim(a.value);},
	// http://docs.jquery.com/Plugins/Validation/unchecked
	unchecked: function(a) {return !a.checked;}
});


$.format = function(source, params) {
	if ( arguments.length == 1 ) 
		return function() {
			var args = $.makeArray(arguments);
			args.unshift(source);
			return $.format.apply( this, args );
		};
	if ( arguments.length > 2 && params.constructor != Array  ) {
		params = $.makeArray(arguments).slice(1);
	}
	if ( params.constructor != Array ) {
		params = [ params ];
	}
	$.each(params, function(i, n) {
		source = source.replace(new RegExp("\\{" + i + "\\}", "g"), n);
	});
	return source;
};

// constructor for validator
$.validator = function( options, form ) {
	this.settings = $.extend( {}, $.validator.defaults, options );
	this.currentForm = form;
	this.init();
};

$.extend($.validator, {

	defaults: {
		messages: {},
		groups: {},
		rules: {},
		errorClass: "error",
		errorElement: "label",
		focusInvalid: true,
		errorContainer: $( [] ),
		errorLabelContainer: $( [] ),
		onsubmit: true,
		ignore: [],
		ignoreTitle: false,
		onfocusin: function(element) {
			this.lastActive = element;
				
			// hide error label and remove error class on focus if enabled
			if ( this.settings.focusCleanup && !this.blockFocusCleanup ) {
				this.settings.unhighlight && this.settings.unhighlight.call( this, element, this.settings.errorClass );
				this.errorsFor(element).hide();
			}
		},
		onfocusout: function(element) {
			if ( !this.checkable(element) && (element.name in this.submitted || !this.optional(element)) ) {
				this.element(element);
			}
		},
		onkeyup: function(element) {
			if ( element.name in this.submitted || element == this.lastElement ) {
				this.element(element);
			}
		},
		onclick: function(element) {
			if ( element.name in this.submitted )
				this.element(element);
		},
		highlight: function( element, errorClass ) {
			$( element ).addClass( errorClass );
		},
		unhighlight: function( element, errorClass ) {
			$( element ).removeClass( errorClass );
		}
	},

	// http://docs.jquery.com/Plugins/Validation/Validator/setDefaults
	setDefaults: function(settings) {
		$.extend( $.validator.defaults, settings );
	},

	messages: {
		required: "This field is required.",
		remote: "Please fix this field.",
		email: "Please enter a valid email address.",
		url: "Please enter a valid URL.",
		date: "Please enter a valid date.",
		dateISO: "Please enter a valid date (ISO).",
		dateDE: "Bitte geben Sie ein gültiges Datum ein.",
		number: "Please enter a valid number.",
		numberDE: "Bitte geben Sie eine Nummer ein.",
		digits: "Please enter only digits",
		creditcard: "Please enter a valid credit card.",
		equalTo: "Please enter the same value again.",
		accept: "Please enter a value with a valid extension.",
		maxlength: $.format("Please enter no more than {0} characters."),
		minlength: $.format("Please enter at least {0} characters."),
		rangelength: $.format("Please enter a value between {0} and {1} characters long."),
		range: $.format("Please enter a value between {0} and {1}."),
		max: $.format("Please enter a value less than or equal to {0}."),
		min: $.format("Please enter a value greater than or equal to {0}.")
	},
	
	autoCreateRanges: false,
	
	prototype: {
		
		init: function() {
			this.labelContainer = $(this.settings.errorLabelContainer);
			this.errorContext = this.labelContainer.length && this.labelContainer || $(this.currentForm);
			this.containers = $(this.settings.errorContainer).add( this.settings.errorLabelContainer );
			this.submitted = {};
			this.valueCache = {};
			this.pendingRequest = 0;
			this.pending = {};
			this.invalid = {};
			this.reset();
			
			var groups = (this.groups = {});
			$.each(this.settings.groups, function(key, value) {
				$.each(value.split(/\s/), function(index, name) {
					groups[name] = key;
				});
			});
			var rules = this.settings.rules;
			$.each(rules, function(key, value) {
				rules[key] = $.validator.normalizeRule(value);
			});
			
			function delegate(event) {
				var validator = $.data(this[0].form, "validator");
				validator.settings["on" + event.type] && validator.settings["on" + event.type].call(validator, this[0] );
			}
			$(this.currentForm)
				.delegate("focusin focusout keyup", ":text, :password, :file, select, textarea", delegate)
				.delegate("click", ":radio, :checkbox", delegate);
		},

		// http://docs.jquery.com/Plugins/Validation/Validator/form
		form: function() {
			this.checkForm();
			$.extend(this.submitted, this.errorMap);
			this.invalid = $.extend({}, this.errorMap);
			if (!this.valid())
				$(this.currentForm).triggerHandler("invalid-form.validate", [this]);
			this.showErrors();
			return this.valid();
		},
		
		checkForm: function() {
			this.prepareForm();
			for ( var i = 0, elements = (this.currentElements = this.elements()); elements[i]; i++ ) {
				this.check( elements[i] );
			}
			return this.valid(); 
		},
		
		// http://docs.jquery.com/Plugins/Validation/Validator/element
		element: function( element ) {
			element = this.clean( element );
			this.lastElement = element;
			this.prepareElement( element );
			this.currentElements = $(element);
			var result = this.check( element );
			if ( result ) {
				delete this.invalid[element.name];
			} else {
				this.invalid[element.name] = true;
			}
			if ( !this.numberOfInvalids() ) {
				// Hide error containers on last error
				this.toHide.push( this.containers );
			}
			this.showErrors();
			return result;
		},

		// http://docs.jquery.com/Plugins/Validation/Validator/showErrors
		showErrors: function(errors) {
			if(errors) {
				// add items to error list and map
				$.extend( this.errorMap, errors );
				this.errorList = [];
				for ( var name in errors ) {
					this.errorList.push({
						message: errors[name],
						element: this.findByName(name)[0]
					});
				}
				// remove items from success list
				this.successList = $.grep( this.successList, function(element) {
					return !(element.name in errors);
				});
			}
			this.settings.showErrors
				? this.settings.showErrors.call( this, this.errorMap, this.errorList )
				: this.defaultShowErrors();
		},
		
		// http://docs.jquery.com/Plugins/Validation/Validator/resetForm
		resetForm: function() {
			if ( $.fn.resetForm )
				$( this.currentForm ).resetForm();
			this.submitted = {};
			this.prepareForm();
			this.hideErrors();
			this.elements().removeClass( this.settings.errorClass );
		},
		
		numberOfInvalids: function() {
			return this.objectLength(this.invalid);
		},
		
		objectLength: function( obj ) {
			var count = 0;
			for ( var i in obj )
				count++;
			return count;
		},
		
		hideErrors: function() {
			this.addWrapper( this.toHide ).hide();
		},
		
		valid: function() {
			return this.size() == 0;
		},
		
		size: function() {
			return this.errorList.length;
		},
		
		focusInvalid: function() {
			if( this.settings.focusInvalid ) {
				try {
					$(this.findLastActive() || this.errorList.length && this.errorList[0].element || []).filter(":visible").focus();
				} catch(e) { /* ignore IE throwing errors when focusing hidden elements */ }
			}
		},
		
		findLastActive: function() {
			var lastActive = this.lastActive;
			return lastActive && $.grep(this.errorList, function(n) {
				return n.element.name == lastActive.name;
			}).length == 1 && lastActive;
		},
		
		elements: function() {
			var validator = this,
				rulesCache = {};
			
			// select all valid inputs inside the form (no submit or reset buttons)
			// workaround $Query([]).add until http://dev.jquery.com/ticket/2114 is solved
			return $([]).add(this.currentForm.elements)
			.filter(":input")
			.not(":submit, :reset, :image, [disabled]")
			.not( this.settings.ignore )
			.filter(function() {
				!this.name && validator.settings.debug && window.console && console.error( "%o has no name assigned", this);
			
				// select only the first element for each name, and only those with rules specified
				if ( this.name in rulesCache || !validator.objectLength($(this).rules()) )
					return false;
				
				rulesCache[this.name] = true;
				return true;
			});
		},
		
		clean: function( selector ) {
			return $( selector )[0];
		},
		
		errors: function() {
			return $( this.settings.errorElement + "." + this.settings.errorClass, this.errorContext );
		},
		
		reset: function() {
			this.successList = [];
			this.errorList = [];
			this.errorMap = {};
			this.toShow = $([]);
			this.toHide = $([]);
			this.formSubmitted = false;
			this.currentElements = $([]);
		},
		
		prepareForm: function() {
			this.reset();
			this.toHide = this.errors().push( this.containers );
		},
		
		prepareElement: function( element ) {
			this.reset();
			this.toHide = this.errorsFor(element);
		},
	
		check: function( element ) {
			element = this.clean( element );
			
			// if radio/checkbox, validate first element in group instead
			if (this.checkable(element)) {
				element = this.findByName( element.name )[0];
			}
			
			var rules = $(element).rules();
			var dependencyMismatch = false;
			for( method in rules ) {
				var rule = { method: method, parameters: rules[method] };
				try {
					var result = $.validator.methods[method].call( this, element.value, element, rule.parameters );
					
					// if a method indicates that the field is optional and therefore valid,
					// don't mark it as valid when there are no other rules
					if ( result == "dependency-mismatch" ) {
						dependencyMismatch = true;
						continue;
					}
					dependencyMismatch = false;
					
					if ( result == "pending" ) {
						this.toHide = this.toHide.not( this.errorsFor(element) );
						return;
					}
					
					if( !result ) {
						this.formatAndAdd( element, rule );
						return false;
					}
				} catch(e) {
					this.settings.debug && window.console && console.log("exception occured when checking element " + element.id
						 + ", check the '" + rule.method + "' method");
					throw e;
				}
			}
			if (dependencyMismatch)
				return;
			if ( this.objectLength(rules) )
				this.successList.push(element);
			return true;
		},
		
		// return the custom message for the given element and validation method
		// specified in the element's "messages" metadata
		customMetaMessage: function(element, method) {
			if (!$.metadata)
				return;
			
			var meta = this.settings.meta
				? $(element).metadata()[this.settings.meta]
				: $(element).metadata();
			
			return meta && meta.messages && meta.messages[method];
		},
		
		// return the custom message for the given element name and validation method
		customMessage: function( name, method ) {
			var m = this.settings.messages[name];
			return m && (m.constructor == String
				? m
				: m[method]);
		},
		
		// return the first defined argument, allowing empty strings
		findDefined: function() {
			for(var i = 0; i < arguments.length; i++) {
				if (arguments[i] !== undefined)
					return arguments[i];
			}
			return undefined;
		},
		
		defaultMessage: function( element, method) {
			return this.findDefined(
				this.customMessage( element.name, method ),
				this.customMetaMessage( element, method ),
				// title is never undefined, so handle empty string as undefined
				!this.settings.ignoreTitle && element.title || undefined,
				$.validator.messages[method],
				"<strong>Warning: No message defined for " + element.name + "</strong>"
			);
		},
		
		formatAndAdd: function( element, rule ) {
			var message = this.defaultMessage( element, rule.method );
			if ( typeof message == "function" ) 
				message = message.call(this, rule.parameters, element);
			this.errorList.push({
				message: message,
				element: element
			});
			this.errorMap[element.name] = message;
			this.submitted[element.name] = message;
		},
		
		addWrapper: function(toToggle) {
			if ( this.settings.wrapper )
				toToggle.push( toToggle.parents( this.settings.wrapper ) );
			return toToggle;
		},
		
		defaultShowErrors: function() {
			for ( var i = 0; this.errorList[i]; i++ ) {
				var error = this.errorList[i];
				this.settings.highlight && this.settings.highlight.call( this, error.element, this.settings.errorClass );
				this.showLabel( error.element, error.message );
			}
			if( this.errorList.length ) {
				this.toShow.push( this.containers );
			}
			if (this.settings.success) {
				for ( var i = 0; this.successList[i]; i++ ) {
					this.showLabel( this.successList[i] );
				}
			}
			if (this.settings.unhighlight) {
				for ( var i = 0, elements = this.validElements(); elements[i]; i++ ) {
					this.settings.unhighlight.call( this, elements[i], this.settings.errorClass );
				}
			}
			this.toHide = this.toHide.not( this.toShow );
			this.hideErrors();
			this.addWrapper( this.toShow ).show();
		},
		
		validElements: function() {
			return this.currentElements.not(this.invalidElements());
		},
		
		invalidElements: function() {
			return $(this.errorList).map(function() {
				return this.element;
			});
		},
		
		showLabel: function(element, message) {
			var label = this.errorsFor( element );
			if ( label.length ) {
				// refresh error/success class
				label.removeClass().addClass( this.settings.errorClass );
			
				// check if we have a generated label, replace the message then
				label.attr("generated") && label.html(message);
			} else {
				// create label
				label = $("<" + this.settings.errorElement + "/>")
					.attr({"for":  this.idOrName(element), generated: true})
					.addClass(this.settings.errorClass)
					.html(message || "");
				if ( this.settings.wrapper ) {
					// make sure the element is visible, even in IE
					// actually showing the wrapped element is handled elsewhere
					label = label.hide().show().wrap("<" + this.settings.wrapper + ">").parent();
				}
				if ( !this.labelContainer.append(label).length )
					this.settings.errorPlacement
						? this.settings.errorPlacement(label, $(element) )
						: label.insertAfter(element);
			}
			if ( !message && this.settings.success ) {
				label.text("");
				typeof this.settings.success == "string"
					? label.addClass( this.settings.success )
					: this.settings.success( label );
			}
			this.toShow.push(label);
		},
		
		errorsFor: function(element) {
			return this.errors().filter("[@for='" + this.idOrName(element) + "']");
		},
		
		idOrName: function(element) {
			return this.groups[element.name] || (this.checkable(element) ? element.name : element.id || element.name);
		},

		checkable: function( element ) {
			return /radio|checkbox/i.test(element.type);
		},
		
		findByName: function( name ) {
			// select by name and filter by form for performance over form.find("[name=...]")
			var form = this.currentForm;
			return $(document.getElementsByName(name)).map(function(index, element) {
				return element.form == form && element.name == name && element  || null;
			});
		},
		
		getLength: function(value, element) {
			switch( element.nodeName.toLowerCase() ) {
			case 'select':
				return $("option:selected", element).length;
			case 'input':
				if( this.checkable( element) )
					return this.findByName(element.name).filter(':checked').length;
			}
			return value.length;
		},
	
		depend: function(param, element) {
			return this.dependTypes[typeof param]
				? this.dependTypes[typeof param](param, element)
				: true;
		},
	
		dependTypes: {
			"boolean": function(param, element) {
				return param;
			},
			"string": function(param, element) {
				return !!$(param, element.form).length;
			},
			"function": function(param, element) {
				return param(element);
			}
		},
		
		optional: function(element) {
			return !$.validator.methods.required.call(this, $.trim(element.value), element) && "dependency-mismatch";
		},
		
		startRequest: function(element) {
			if (!this.pending[element.name]) {
				this.pendingRequest++;
				this.pending[element.name] = true;
			}
		},
		
		stopRequest: function(element, valid) {
			this.pendingRequest--;
			// sometimes synchronization fails, make pendingRequest is never < 0
			if (this.pendingRequest < 0)
				this.pendingRequest = 0;
			delete this.pending[element.name];
			if ( valid && this.pendingRequest == 0 && this.formSubmitted && this.form() ) {
				$(this.currentForm).submit();
			}
		},
		
		previousValue: function(element) {
			return $.data(element, "previousValue") || $.data(element, "previousValue", previous = {
				old: null,
				valid: true,
				message: this.defaultMessage( element, "remote" )
			});
		}
		
	},
	
	classRuleSettings: {
		required: {required: true},
		email: {email: true},
		url: {url: true},
		date: {date: true},
		dateISO: {dateISO: true},
		dateDE: {dateDE: true},
		number: {number: true},
		numberDE: {numberDE: true},
		digits: {digits: true},
		creditcard: {creditcard: true}
	},
	
	addClassRules: function(className, rules) {
		className.constructor == String ?
			this.classRuleSettings[className] = rules :
			$.extend(this.classRuleSettings, className);
	},
	
	classRules: function(element) {
		var rules = {};
		var classes = $(element).attr('class');
		classes && $.each(classes.split(' '), function() {
			if (this in $.validator.classRuleSettings) {
				$.extend(rules, $.validator.classRuleSettings[this]);
			}
		});
		return rules;
	},
	
	attributeRules: function(element) {
		var rules = {};
		var $element = $(element);
		
		for (method in $.validator.methods) {
			var value = $element.attr(method);
			if (value) {
				rules[method] = value;
			}
		}
		
		// maxlength may be returned as -1, 2147483647 (IE) and 524288 (safari) for text inputs
		if (rules.maxlength && /-1|2147483647|524288/.test(rules.maxlength)) {
			delete rules.maxlength;
		}
		
		return rules;
	},
	
	metadataRules: function(element) {
		if (!$.metadata) return {};
		
		var meta = $.data(element.form, 'validator').settings.meta;
		return meta ?
			$(element).metadata()[meta] :
			$(element).metadata();
	},
	
	staticRules: function(element) {
		var rules = {};
		var validator = $.data(element.form, 'validator');
		if (validator.settings.rules) {
			rules = $.validator.normalizeRule(validator.settings.rules[element.name]) || {};
		}
		return rules;
	},
	
	normalizeRules: function(rules, element) {
		// handle dependency check
		$.each(rules, function(prop, val) {
			// ignore rule when param is explicitly false, eg. required:false
			if (val === false) {
				delete rules[prop];
				return;
			}
			if (val.param || val.depends) {
				var keepRule = true;
				switch (typeof val.depends) {
					case "string":
						keepRule = !!$(val.depends, element.form).length;
						break;
					case "function":
						keepRule = val.depends.call(element, element);
						break;
				}
				if (keepRule) {
					rules[prop] = val.param !== undefined ? val.param : true;
				} else {
					delete rules[prop];
				}
			}
		});
		
		// evaluate parameters
		$.each(rules, function(rule, parameter) {
			rules[rule] = $.isFunction(parameter) ? parameter(element) : parameter;
		});
		
		// clean number parameters
		$.each(['minlength', 'maxlength', 'min', 'max'], function() {
			if (rules[this]) {
				rules[this] = Number(rules[this]);
			}
		});
		$.each(['rangelength', 'range'], function() {
			if (rules[this]) {
				rules[this] = [Number(rules[this][0]), Number(rules[this][1])];
			}
		});
		
		if ($.validator.autoCreateRanges) {
			// auto-create ranges
			if (rules.min && rules.max) {
				rules.range = [rules.min, rules.max];
				delete rules.min;
				delete rules.max;
			}
			if (rules.minlength && rules.maxlength) {
				rules.rangelength = [rules.minlength, rules.maxlength];
				delete rules.minlength;
				delete rules.maxlength;
			}
		}
		
		// To support custom messages in metadata ignore rule methods titled "messages"
		if (rules.messages) {
			delete rules.messages
		}
		
		return rules;
	},
	
	// Converts a simple string to a {string: true} rule, e.g., "required" to {required:true}
	normalizeRule: function(data) {
		if( typeof data == "string" ) {
			var transformed = {};
			$.each(data.split(/\s/), function() {
				transformed[this] = true;
			});
			data = transformed;
		}
		return data;
	},
	
	// http://docs.jquery.com/Plugins/Validation/Validator/addMethod
	addMethod: function(name, method, message) {
		$.validator.methods[name] = method;
		$.validator.messages[name] = message;
		if (method.length < 3) {
			$.validator.addClassRules(name, $.validator.normalizeRule(name));
		}
	},

	methods: {

		// http://docs.jquery.com/Plugins/Validation/Methods/required
		required: function(value, element, param) {
			// check if dependency is met
			if ( !this.depend(param, element) )
				return "dependency-mismatch";
			switch( element.nodeName.toLowerCase() ) {
			case 'select':
				var options = $("option:selected", element);
				return options.length > 0 && ( element.type == "select-multiple" || ($.browser.msie && !(options[0].attributes['value'].specified) ? options[0].text : options[0].value).length > 0);
			case 'input':
				if ( this.checkable(element) )
					return this.getLength(value, element) > 0;
			default:
				return $.trim(value).length > 0;
			}
		},
		
		// http://docs.jquery.com/Plugins/Validation/Methods/remote
		remote: function(value, element, param) {
			if ( this.optional(element) )
				return "dependency-mismatch";
			
			var previous = this.previousValue(element);
			
			if (!this.settings.messages[element.name] )
				this.settings.messages[element.name] = {};
			this.settings.messages[element.name].remote = typeof previous.message == "function" ? previous.message(value) : previous.message;
			
			if ( previous.old !== value ) {
				previous.old = value;
				var validator = this;
				this.startRequest(element);
				var data = {};
				data[element.name] = value;
				$.ajax({
					url: param,
					mode: "abort",
					port: "validate" + element.name,
					dataType: "json",
					data: data,
					success: function(response) {
						if ( !response ) {
							var errors = {};
							errors[element.name] =  response || validator.defaultMessage( element, "remote" );
							validator.showErrors(errors);
						} else {
							var submitted = validator.formSubmitted;
							validator.prepareElement(element);
							validator.formSubmitted = submitted;
							validator.successList.push(element);
							validator.showErrors();
						}
						previous.valid = response;
						validator.stopRequest(element, response);
					}
				});
				return "pending";
			} else if( this.pending[element.name] ) {
				return "pending";
			}
			return previous.valid;
		},

		// http://docs.jquery.com/Plugins/Validation/Methods/minlength
		minlength: function(value, element, param) {
			return this.optional(element) || this.getLength(value, element) >= param;
		},
		
		// http://docs.jquery.com/Plugins/Validation/Methods/maxlength
		maxlength: function(value, element, param) {
			return this.optional(element) || this.getLength(value, element) <= param;
		},
		
		// http://docs.jquery.com/Plugins/Validation/Methods/rangelength
		rangelength: function(value, element, param) {
			var length = this.getLength(value, element);
			return this.optional(element) || ( length >= param[0] && length <= param[1] );
		},
		
		// http://docs.jquery.com/Plugins/Validation/Methods/min
		min: function( value, element, param ) {
			return this.optional(element) || value >= param;
		},
		
		// http://docs.jquery.com/Plugins/Validation/Methods/max
		max: function( value, element, param ) {
			return this.optional(element) || value <= param;
		},
		
		// http://docs.jquery.com/Plugins/Validation/Methods/range
		range: function( value, element, param ) {
			return this.optional(element) || ( value >= param[0] && value <= param[1] );
		},
		
		// http://docs.jquery.com/Plugins/Validation/Methods/email
		email: function(value, element) {
			// contributed by Scott Gonzalez: http://projects.scottsplayground.com/email_address_validation/
			return this.optional(element) || /^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?$/i.test(value);
		},
	
		// http://docs.jquery.com/Plugins/Validation/Methods/url
		url: function(value, element) {
			// contributed by Scott Gonzalez: http://projects.scottsplayground.com/iri/
			return this.optional(element) || /^(https?|ftp):\/\/(((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:)*@)?(((\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]))|((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?)(:\d*)?)(\/((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)?)?(\?((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|[\uE000-\uF8FF]|\/|\?)*)?(\#((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|\/|\?)*)?$/i.test(value);
		},
        
		// http://docs.jquery.com/Plugins/Validation/Methods/date
		date: function(value, element) {
			return this.optional(element) || !/Invalid|NaN/.test(new Date(value));
		},
	
		// http://docs.jquery.com/Plugins/Validation/Methods/dateISO
		dateISO: function(value, element) {
			return this.optional(element) || /^\d{4}[\/-]\d{1,2}[\/-]\d{1,2}$/.test(value);
		},
	
		// http://docs.jquery.com/Plugins/Validation/Methods/dateDE
		dateDE: function(value, element) {
			return this.optional(element) || /^\d\d?\.\d\d?\.\d\d\d?\d?$/.test(value);
		},
	
		// http://docs.jquery.com/Plugins/Validation/Methods/number
		number: function(value, element) {
			return this.optional(element) || /^-?(?:\d+|\d{1,3}(?:,\d{3})+)(?:\.\d+)?$/.test(value);
		},
	
		// http://docs.jquery.com/Plugins/Validation/Methods/numberDE
		numberDE: function(value, element) {
			return this.optional(element) || /^-?(?:\d+|\d{1,3}(?:\.\d{3})+)(?:,\d+)?$/.test(value);
		},
		
		// http://docs.jquery.com/Plugins/Validation/Methods/digits
		digits: function(value, element) {
			return this.optional(element) || /^\d+$/.test(value);
		},
		
		// http://docs.jquery.com/Plugins/Validation/Methods/creditcard
		// based on http://en.wikipedia.org/wiki/Luhn
		creditcard: function(value, element) {
			if ( this.optional(element) )
				return "dependency-mismatch";
			// accept only digits and dashes
			if (/[^0-9-]+/.test(value))
				return false;
			var nCheck = 0,
				nDigit = 0,
				bEven = false;

			value = value.replace(/\D/g, "");

			for (n = value.length - 1; n >= 0; n--) {
				var cDigit = value.charAt(n);
				var nDigit = parseInt(cDigit, 10);
				if (bEven) {
					if ((nDigit *= 2) > 9)
						nDigit -= 9;
				}
				nCheck += nDigit;
				bEven = !bEven;
			}

			return (nCheck % 10) == 0;
		},
		
		// http://docs.jquery.com/Plugins/Validation/Methods/accept
		accept: function(value, element, param) {
			param = typeof param == "string" ? param : "png|jpe?g|gif";
			return this.optional(element) || value.match(new RegExp(".(" + param + ")$", "i")); 
		},
		
		// http://docs.jquery.com/Plugins/Validation/Methods/equalTo
		equalTo: function(value, element, param) {
			return value == $(param).val();
		}
		
	}
	
});

})(jQuery);

// ajax mode: abort
// usage: $.ajax({ mode: "abort"[, port: "uniqueport"]});
// if mode:"abort" is used, the previous request on that port (port can be undefined) is aborted via XMLHttpRequest.abort() 
;(function($) {
	var ajax = $.ajax;
	var pendingRequests = {};
	$.ajax = function(settings) {
		// create settings for compatibility with ajaxSetup
		settings = $.extend(settings, $.extend({}, $.ajaxSettings, settings));
		var port = settings.port;
		if (settings.mode == "abort") {
			if ( pendingRequests[port] ) {
				pendingRequests[port].abort();
			}
			return (pendingRequests[port] = ajax.apply(this, arguments));
		}
		return ajax.apply(this, arguments);
	};
})(jQuery);

// provides cross-browser focusin and focusout events
// IE has native support, in other browsers, use event caputuring (neither bubbles)

// provides delegate(type: String, delegate: Selector, handler: Callback) plugin for easier event delegation
// handler is only called when $(event.target).is(delegate), in the scope of the jquery-object for event.target 

// provides triggerEvent(type: String, target: Element) to trigger delegated events
;(function($) {
	$.each({
		focus: 'focusin',
		blur: 'focusout'	
	}, function( original, fix ){
		$.event.special[fix] = {
			setup:function() {
				if ( $.browser.msie ) return false;
				this.addEventListener( original, $.event.special[fix].handler, true );
			},
			teardown:function() {
				if ( $.browser.msie ) return false;
				this.removeEventListener( original,
				$.event.special[fix].handler, true );
			},
			handler: function(e) {
				arguments[0] = $.event.fix(e);
				arguments[0].type = fix;
				return $.event.handle.apply(this, arguments);
			}
		};
	});
	$.extend($.fn, {
		delegate: function(type, delegate, handler) {
			return this.bind(type, function(event) {
				var target = $(event.target);
				if (target.is(delegate)) {
					return handler.apply(target, arguments);
				}
			});
		},
		triggerEvent: function(type, target) {
			return this.triggerHandler(type, [$.event.fix({ type: type, target: target })]);
		}
	})
})(jQuery);