/**
 * 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({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()
{$(this).empty().append(calendarTable);});},datePicker:function(s)
{if(!$.event._dpCache)$.event._dpCache=[];s=$.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){controller.button=$('<a href="#" class="dp-choose-date" title="'+$.dpText.TEXT_CHOOSE_DATE+'">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</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);}}
$this.addClass('dp-applied');})},dpSetDisabled:function(s)
{return _w.call(this,'setDisabled',s);},dpSetStartDate:function(d)
{return _w.call(this,'setStartDate',d);},dpSetEndDate:function(d)
{return _w.call(this,'setEndDate',d);},dpGetSelected:function()
{var c=_getController(this[0]);if(c){return c.getSelected();}
return null;},dpSetSelected:function(d,v,m)
{if(v==undefined)v=true;if(m==undefined)m=true;return _w.call(this,'setSelected',Date.fromString(d),v,m);},dpSetDisplayedMonth:function(m,y)
{return _w.call(this,'setDisplayedMonth',Number(m),Number(y));},dpDisplay:function(e)
{return _w.call(this,'display',e);},dpSetRenderCallback:function(a)
{return _w.call(this,'setRenderCallback',a);},dpSetPosition:function(v,h)
{return _w.call(this,'setPosition',v,h);},dpSetOffset:function(v,h)
{return _w.call(this,'setOffset',v,h);},dpClose:function()
{return _w.call(this,'_closeCalendar',false,this[0]);},_dpDestroy:function()
{}});var _w=function(f,a1,a2,a3)
{return this.each(function()
{var c=_getController(this);if(c){c[f](a1,a2,a3);}});};function DatePicker(ele)
{this.ele=ele;this.displayedMonth=null;this.displayedYear=null;this.startDate=null;this.endDate=null;this.showYearNavigation=null;this.closeOnSelect=null;this.displayClose=null;this.selectMultiple=null;this.verticalPosition=null;this.horizontalPosition=null;this.verticalOffset=null;this.horizontalOffset=null;this.button=null;this.renderCallback=[];this.selectedDates={};this.inline=null;this.context='#dp-popup';};$.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'));}
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))){t=new Date().zeroTime();t.setDate(1);}else if(isNaN(m)){t=new Date(y,this.displayedMonth,1);}else if(isNaN(y)){t=new Date(this.displayedYear,m,1);}else{t=new Date(y,m,1)}
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());$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)){$td.addClass('selected');}
for(var i=0;i<c.renderCallback.length;i++){c.renderCallback[i].apply(this,arguments);}},_displayNewMonth:function(ele,m,y)
{if(!$(ele).is('.disabled')){this.setDisplayedMonth(this.displayedMonth+m,this.displayedYear+y);this._clearCalendar();this._renderCalendar();$(this.ele).trigger('dpMonthChanged',[this.displayedMonth,this.displayedYear]);}
ele.blur();return false;},_renderCalendar:function()
{$('h2',this.context).html(Date.monthNames[this.displayedMonth]+' '+this.displayedYear);$('.dp-calendar',this.context).renderCalendar({month:this.displayedMonth,year:this.displayedYear,renderCallback:this.cellRender,dpController:this,hoverClass:this.hoverClass});if(this.displayedYear==this.startDate.getFullYear()&&this.displayedMonth==this.startDate.getMonth()){$('.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){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){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()]);}}},_clearCalendar:function()
{$('.dp-calendar td',this.context).unbind();$('.dp-calendar',this.context).empty();}});$.dpConst={SHOW_HEADER_NONE:0,SHOW_HEADER_SHORT:1,SHOW_HEADER_LONG:2,POS_TOP:0,POS_BOTTOM:1,POS_LEFT:0,POS_RIGHT:1};$.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'};$.dpVersion='$Id: jquery.datePicker.js 3739 2007-10-25 13:55:30Z kelvin.luck $';function _getController(ele)
{if(ele._dpId)return $.event._dpCache[ele._dpId];return false;};if($.fn.bgIframe==undefined){$.fn.bgIframe=function(){return this;};};$(window).bind('unload',function(){var els=$.event._dpCache||[];for(var i in els){$(els[i].ele)._dpDestroy();}});})(jQuery);
