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Prado.WebUI.TDatePicker=Class.create();Object.extend(Prado.WebUI.TDatePicker,{getDropDownDate:function(control)
{var now=new Date();var year=now.getFullYear();var month=now.getMonth();var day=1;var month_list=this.getMonthListControl(control);var day_list=this.getDayListControl(control);var year_list=this.getYearListControl(control);var day=day_list?$F(day_list):1;var month=month_list?$F(month_list):now.getMonth();var year=year_list?$F(year_list):now.getFullYear();return new Date(year,month,day,0,0,0);},getYearListControl:function(control)
{return $(control.id+"_year");},getMonthListControl:function(control)
{return $(control.id+"_month");},getDayListControl:function(control)
{return $(control.id+"_day");}});Prado.WebUI.TDatePicker.prototype={MonthNames:["January","February","March","April","May","June","July","August","September","October","November","December"],AbbreviatedMonthNames:["Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"],ShortWeekDayNames:["Sun","Mon","Tue","Wed","Thu","Fri","Sat"],Format:"yyyy-MM-dd",FirstDayOfWeek:1,ClassName:"TDatePicker",FromYear:2000,UpToYear:2015,initialize:function(options)
{this.options=options||[];this.control=$(options.ID);this.dateSlot=new Array(42);this.weekSlot=new Array(6);this.minimalDaysInFirstWeek=4;this.selectedDate=this.newDate();if(this.options.Trigger)
{this.trigger=$(this.options.Trigger);var triggerEvent=this.options.TriggerEvent||"click";}
else
{this.trigger=this.control;var triggerEvent=this.options.TriggerEvent||"focus";}
Object.extend(this,options);Event.observe(this.trigger,triggerEvent,this.show.bindEvent(this));},create:function()
{if(typeof(this._calDiv)!="undefined")
return;var div;var table;var tbody;var tr;var td;this._calDiv=document.createElement("div");this._calDiv.className=this.ClassName;this._calDiv.style.display="none";this._calDiv.style.position="absolute"
div=document.createElement("div");div.className="calendarHeader";this._calDiv.appendChild(div);table=document.createElement("table");table.style.cellSpacing=0;div.appendChild(table);tbody=document.createElement("tbody");table.appendChild(tbody);tr=document.createElement("tr");tbody.appendChild(tr);td=document.createElement("td");var previousMonth=document.createElement("input");previousMonth.className="prevMonthButton button";previousMonth.type="button"
previousMonth.value="<<";td.appendChild(previousMonth);tr.appendChild(td);td=document.createElement("td");tr.appendChild(td);this._monthSelect=document.createElement("select");this._monthSelect.className="months";for(var i=0;i<this.MonthNames.length;i++){var opt=document.createElement("option");opt.innerHTML=this.MonthNames[i];opt.value=i;if(i==this.selectedDate.getMonth()){opt.selected=true;}
this._monthSelect.appendChild(opt);}
td.appendChild(this._monthSelect);td=document.createElement("td");td.className="labelContainer";tr.appendChild(td);this._yearSelect=document.createElement("select");for(var i=this.FromYear;i<=this.UpToYear;++i){var opt=document.createElement("option");opt.innerHTML=i;opt.value=i;if(i==this.selectedDate.getFullYear()){opt.selected=false;}
this._yearSelect.appendChild(opt);}
td.appendChild(this._yearSelect);td=document.createElement("td");var nextMonth=document.createElement("input");nextMonth.className="nextMonthButton button";nextMonth.type="button";nextMonth.value=">>";td.appendChild(nextMonth);tr.appendChild(td);div=document.createElement("div");div.className="calendarBody";this._calDiv.appendChild(div);var calendarBody=div;var text;table=document.createElement("table");table.align="center";table.className="grid";div.appendChild(table);var thead=document.createElement("thead");table.appendChild(thead);tr=document.createElement("tr");thead.appendChild(tr);for(i=0;i<7;++i){td=document.createElement("th");text=document.createTextNode(this.ShortWeekDayNames[(i+this.FirstDayOfWeek)%7]);td.appendChild(text);td.className="weekDayHead";tr.appendChild(td);}
tbody=document.createElement("tbody");table.appendChild(tbody);for(week=0;week<6;++week){tr=document.createElement("tr");tbody.appendChild(tr);for(day=0;day<7;++day){td=document.createElement("td");td.className="calendarDate";text=document.createTextNode(String.fromCharCode(160));td.appendChild(text);tr.appendChild(td);var tmp=new Object();tmp.tag="DATE";tmp.value=-1;tmp.data=text;this.dateSlot[(week*7)+day]=tmp;Event.observe(td,"mouseover",this.hover.bindEvent(this));Event.observe(td,"mouseout",this.hover.bindEvent(this));}}
div=document.createElement("div");div.className="calendarFooter";this._calDiv.appendChild(div);var todayButton=document.createElement("input");todayButton.type="button";todayButton.className="todayButton";var today=this.newDate();var buttonText=today.SimpleFormat(this.Format,this);todayButton.value=buttonText;div.appendChild(todayButton);if(Prado.Browser().ie)
{this.iePopUp=document.createElement('iframe');this.iePopUp.src=Prado.WebUI.TDatePicker.spacer;this.iePopUp.style.position="absolute"
this.iePopUp.scrolling="no"
this.iePopUp.frameBorder="0"
document.body.appendChild(this.iePopUp);}
document.body.appendChild(this._calDiv);this.update();this.updateHeader();this.ieHack(true);previousMonth.hideFocus=true;nextMonth.hideFocus=true;todayButton.hideFocus=true;Event.observe(previousMonth,"click",this.prevMonth.bindEvent(this));Event.observe(nextMonth,"click",this.nextMonth.bindEvent(this));Event.observe(todayButton,"click",this.selectToday.bindEvent(this));Event.observe(this._monthSelect,"change",this.monthSelect.bindEvent(this));Event.observe(this._yearSelect,"change",this.yearSelect.bindEvent(this));Event.observe(this._calDiv,"mousewheel",this.mouseWheelChange.bindEvent(this));Event.observe(calendarBody,"click",this.selectDate.bindEvent(this));},ieHack:function(cleanup)
{if(this.iePopUp)
{this.iePopUp.style.display="block";this.iePopUp.style.top=(this._calDiv.offsetTop-1)+"px";this.iePopUp.style.left=(this._calDiv.offsetLeft-1)+"px";this.iePopUp.style.width=Math.abs(this._calDiv.offsetWidth-2)+"px";this.iePopUp.style.height=(this._calDiv.offsetHeight+1)+"px";if(cleanup)this.iePopUp.style.display="none";}},keyPressed:function(ev)
{if(!this.showing)return;if(!ev)ev=document.parentWindow.event;var kc=ev.keyCode!=null?ev.keyCode:ev.charCode;if(kc==Event.KEY_RETURN)
{this.setSelectedDate(this.selectedDate);Event.stop(ev);this.hide();}
if(kc==Event.KEY_ESC)
{Event.stop(ev);this.hide();}
var getDaysPerMonth=function(nMonth,nYear)
{nMonth=(nMonth+12)%12;var days=[31,28,31,30,31,30,31,31,30,31,30,31];var res=days[nMonth];if(nMonth==1)
res+=nYear%4==0&&!(nYear%400==0)?1:0;return res;}
if(kc<37||kc>40)return true;var current=this.selectedDate;var d=current.valueOf();if(kc==Event.KEY_LEFT)
{if(ev.ctrlKey||ev.shiftKey)
{current.setDate(Math.min(current.getDate(),getDaysPerMonth(current.getMonth()-1,current.getFullYear())));d=current.setMonth(current.getMonth()-1);}
else
d-=86400000;}
else if(kc==Event.KEY_RIGHT)
{if(ev.ctrlKey||ev.shiftKey)
{current.setDate(Math.min(current.getDate(),getDaysPerMonth(current.getMonth()+1,current.getFullYear())));d=current.setMonth(current.getMonth()+1);}
else
d+=86400000;}
else if(kc==Event.KEY_UP)
{if(ev.ctrlKey||ev.shiftKey)
{current.setDate(Math.min(current.getDate(),getDaysPerMonth(current.getMonth(),current.getFullYear()-1)));d=current.setFullYear(current.getFullYear()-1);}
else
d-=604800000;}
else if(kc==Event.KEY_DOWN)
{if(ev.ctrlKey||ev.shiftKey)
{current.setDate(Math.min(current.getDate(),getDaysPerMonth(current.getMonth(),current.getFullYear()+1)));d=current.setFullYear(current.getFullYear()+1);}
else
d+=7*24*61*60*1000;}
this.setSelectedDate(d);Event.stop(ev);},selectDate:function(ev)
{var el=Event.element(ev);while(el.nodeType!=1)
el=el.parentNode;while(el!=null&&el.tagName&&el.tagName.toLowerCase()!="td")
el=el.parentNode;if(el==null||el.tagName==null||el.tagName.toLowerCase()!="td")
return;var d=this.newDate(this.selectedDate);var n=Number(el.firstChild.data);if(isNaN(n)||n<=0||n==null)
return;d.setDate(n);this.setSelectedDate(d);this.hide();},selectToday:function()
{if(this.selectedDate.toISODate()==this.newDate().toISODate())
this.hide();this.setSelectedDate(this.newDate());},clearSelection:function()
{this.setSelectedDate(this.newDate());this.hide();},monthSelect:function(ev)
{this.setMonth(Form.Element.getValue(Event.element(ev)));},yearSelect:function(ev)
{this.setYear(Form.Element.getValue(Event.element(ev)));},mouseWheelChange:function(e)
{if(e==null)e=document.parentWindow.event;var n=-e.wheelDelta/120;var d=this.newDate(this.selectedDate);var m=d.getMonth()+n;this.setMonth(m);return false;},onChange:function()
{if(this.options.InputMode=="TextBox")
{this.control.value=this.formatDate();Event.fireEvent(this.control,"change");}
else
{var day=Prado.WebUI.TDatePicker.getDayListControl(this.control);var month=Prado.WebUI.TDatePicker.getMonthListControl(this.control);var year=Prado.WebUI.TDatePicker.getYearListControl(this.control);var date=this.selectedDate;if(day)
{day.selectedIndex=date.getDate()-1;}
if(month)
{month.selectedIndex=date.getMonth();}
if(year)
{var years=year.options;var currentYear=date.getFullYear();for(var i=0;i<years.length;i++)
years[i].selected=years[i].value.toInteger()==currentYear;}
Event.fireEvent(day||month||year,"change");}},formatDate:function()
{return this.selectedDate?this.selectedDate.SimpleFormat(this.Format,this):'';},newDate:function(date)
{if(!date)
date=new Date();if(typeof(date)=="string"||typeof(date)=="number")
date=new Date(date);return new Date(date.getFullYear(),date.getMonth(),date.getDate(),0,0,0);},setSelectedDate:function(date)
{if(date==null)
return;this.selectedDate=this.newDate(date);this.updateHeader();this.update();if(typeof(this.onChange)=="function")
this.onChange();},getElement:function()
{return this._calDiv;},getSelectedDate:function()
{return this.selectedDate==null?null:this.newDate(this.selectedDate);},setYear:function(year)
{var d=this.newDate(this.selectedDate);d.setFullYear(year);this.setSelectedDate(d);},setMonth:function(month)
{var d=this.newDate(this.selectedDate);d.setMonth(month);this.setSelectedDate(d);},nextMonth:function()
{this.setMonth(this.selectedDate.getMonth()+1);},prevMonth:function()
{this.setMonth(this.selectedDate.getMonth()-1);},show:function()
{this.create();if(!this.showing)
{var pos=Position.cumulativeOffset(this.control);if(this.options.InputMode=="TextBox")
pos[1]+=this.control.offsetHeight;else
{var dayList=Prado.WebUI.TDatePicker.getDayListControl(this.control);if(dayList)
pos[1]+=dayList.offsetHeight-1;}
this._calDiv.style.display="block";this._calDiv.style.top=(pos[1]-1)+"px";this._calDiv.style.left=pos[0]+"px";this.ieHack(false);this.documentClickEvent=this.hideOnClick.bindEvent(this);this.documentKeyDownEvent=this.keyPressed.bindEvent(this);Event.observe(document.body,"click",this.documentClickEvent);var date=this.getDateFromInput();if(date)
{this.selectedDate=date;this.setSelectedDate(date);}
Event.observe(document,"keydown",this.documentKeyDownEvent);this.showing=true;}},getDateFromInput:function()
{if(this.options.InputMode=="TextBox")
return Date.SimpleParse($F(this.control),this.Format);else
return Prado.WebUI.TDatePicker.getDropDownDate(this.control);},hideOnClick:function(ev)
{if(!this.showing)return;var el=Event.element(ev);var within=false;do
{within=within||el.className==this.ClassName;within=within||el==this.trigger;within=within||el==this.control;if(within)break;el=el.parentNode;}
while(el);if(!within)this.hide();},hide:function()
{if(this.showing)
{this._calDiv.style.display="none";if(this.iePopUp)
this.iePopUp.style.display="none";this.showing=false;Event.stopObserving(document.body,"click",this.documentClickEvent);Event.stopObserving(document,"keydown",this.documentKeyDownEvent);}},update:function()
{var date=this.selectedDate;var today=(this.newDate()).toISODate();var selected=date.toISODate();var d1=new Date(date.getFullYear(),date.getMonth(),1);var d2=new Date(date.getFullYear(),date.getMonth()+1,1);var monthLength=Math.round((d2-d1)/(24*60*60*1000));var firstIndex=(d1.getDay()-this.FirstDayOfWeek)%7;if(firstIndex<0)
firstIndex+=7;var index=0;while(index<firstIndex){this.dateSlot[index].value=-1;this.dateSlot[index].data.data=String.fromCharCode(160);this.dateSlot[index].data.parentNode.className="empty";index++;}
for(i=1;i<=monthLength;i++,index++){var slot=this.dateSlot[index];var slotNode=slot.data.parentNode;slot.value=i;slot.data.data=i;slotNode.className="date";if(d1.toISODate()==today){slotNode.className+=" today";}
if(d1.toISODate()==selected){slotNode.className+=" selected";}
d1=new Date(d1.getFullYear(),d1.getMonth(),d1.getDate()+1);}
var lastDateIndex=index;while(index<42){this.dateSlot[index].value=-1;this.dateSlot[index].data.data=String.fromCharCode(160);this.dateSlot[index].data.parentNode.className="empty";++index;}},hover:function(ev)
{if(ev.type=="mouseover")
Event.element(ev).addClassName("hover");else
Event.element(ev).removeClassName("hover");},updateHeader:function(){var options=this._monthSelect.options;var m=this.selectedDate.getMonth();for(var i=0;i<options.length;++i){options[i].selected=false;if(options[i].value==m){options[i].selected=true;}}
options=this._yearSelect.options;var year=this.selectedDate.getFullYear();for(var i=0;i<options.length;++i){options[i].selected=false;if(options[i].value==year){options[i].selected=true;}}}};
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