if(typeof Prototype=='undefined')alert("XDCalendar Error: Prototype could not be found. Please make sure that your application's layout includes prototype.js before it includes js_calendar_proto.js.");
if(Prototype.Version<"1.6")alert("Prototype >= 1.6.0 is required.");
Element.addMethods({
  purgeChildren: function(element){$A(element.childNodes).each(function(e){$(e).remove();});},
  build:function(element,type,options,style){var newElement=Element.buildAndAppend(type,options,style);
    element.appendChild(newElement);return newElement;}});
Element.buildAndAppend=function(type,options,style){var e=$(document.createElement(type));
  	$H(options).each(function(pair){e[pair.key]=pair.value});if(style)e.setStyle(style);return e;};
nil = null;
Date.one_day=24*60*60*1000;Date.weekdays=$w("Sun Mon Tue Wed Thu Fri Sat");Date.first_day_of_week=0;
Date.months=$w("January February March April May June July August September October November December");
Date.padded2=function(hour){var padded2=parseInt(hour,10);if(hour<10)padded2="0"+padded2;return padded2;}
Date.prototype.getPaddedMinutes = function() { return Date.padded2(this.getMinutes()); }
Date.prototype.getAMPMHour = function() { var hour = this.getHours(); return (hour == 0) ? 12 : (hour > 12 ? hour - 12 : hour ) }
Date.prototype.getAMPM = function() { return (this.getHours() < 12) ? "AM" : "PM"; }
Date.prototype.stripTime = function() { return new Date(this.getFullYear(), this.getMonth(), this.getDate());};
Date.prototype.daysDistance = function(compare_date) { return Math.round((compare_date - this) / Date.one_day); };
Date.prototype.toFormattedString = function(include_time){var hour,str;
  str=Date.months[this.getMonth()] + " " + this.getDate() + ", " + this.getFullYear();
  if (include_time) { hour = this.getHours(); str += " " + this.getAMPMHour() + ":" + this.getPaddedMinutes() + " " + this.getAMPM() }
  return str;
}
Date.parseFormattedString=function(string){return new Date(string);}
Math.floor_to_interval=function(n,i){return Math.floor(n/i)*i;}
window.f_height = function() { return( [window.innerHeight ? window.innerHeight : null, document.documentElement ? document.documentElement.clientHeight : null, document.body ? document.body.clientHeight : null].select(function(x){return x>0}).first()||0); }
window.f_scrollTop = function() { return ([window.pageYOffset ? window.pageYOffset : null, document.documentElement ? document.documentElement.scrollTop : null, document.body ? document.body.scrollTop : null].select(function(x){return x>0}).first()||0 ); }
_translations={"OK":"OK","Now":"Now","Today":"Today"}
SelectBox=Class.create({
  	initialize:function(parent_element,values,html_options,style_options){
    	this.element=$(parent_element).build("select",html_options,style_options);
    	this.populate(values);
  	},
  	populate:function(values){
    	this.element.purgeChildren();
    	var that=this; 
		$A(values).each(function(pair){if(typeof(pair)!="object"){pair=[pair,pair]};that.element.build("option",{value:pair[1], innerHTML:pair[0]})});
  	},
  	setValue:function(value){
    	var e = this.element;
    	var matched = false;
    	$R(0, e.options.length - 1 ).each(function(i) { if(e.options[i].value==value.toString()) {e.selectedIndex = i; matched = true;}; } );
    	return matched;
  	},
  	getValue:function(){return $F(this.element)}
});
XDCalendar=Class.create({
  	initialize:function(target_element,options){
    	this.target_element = $(target_element); // Make sure it's an element, not a string...
    	if(!this.target_element){alert("Target element " + target_element + " not found!"); return false;}
    	if(this.target_element.tagName!="INPUT")this.target_element = this.target_element.down("INPUT")
    	this.target_element.calendar_date_select = this;
    	this.last_click_at=0;
		var now=new Date();
    	// Initialize the date control...
    	this.options=$H({embedded:false,popup:nil,time:false,buttons:true,ok:false,arrival:false,
			departure:false,year_range:[now.getFullYear(),now.getFullYear()+4],calendar_div:nil,
		  	close_on_click:nil,minute_interval:5,popup_by:this.target_element,month_year:"dropdowns",
		  	onchange:this.target_element.onchange,valid_date_check:nil}).merge(options||{});
    	this.selection_made = $F(this.target_element).strip()!=="";
    	this.use_time = this.options.get("time");
    	this.callback("before_show")
    	this.calendar_div=$(this.options.get("calendar_div"));
    	this.parseDate();
    	// By default, stick it by the target element (if embedded, that's where we'll want it to show up)...
    	if(this.calendar_div==nil){this.calendar_div=$( this.options.get("embedded")?this.target_element.parentNode:document.body).build('div');}
    	if(!this.options.get("embedded"))this.calendar_div.setStyle({position:"absolute",visibility:"hidden",left:0,top:0});
    	this.calendar_div.addClassName("calendar_date_select");
    	if(this.options.get("embedded")) this.options.set("close_on_click",false);
    	// Logic for close on click...
    	if(this.options.get("close_on_click")===nil){
      		if(this.options.get("time"))this.options.set("close_on_click",false);
      		else this.options.set("close_on_click",true);
    	}
    	// set the click handler to check if a user has clicked away from the document
    	if(!this.options.get("embedded")){
      		Event.observe(document,"mousedown",this.closeIfClickedOut_handler=this.closeIfClickedOut.bindAsEventListener(this));
			Event.observe(document,"keypress",this.keyPress_handler=this.keyPress.bindAsEventListener(this));
    	}
    	this.init();if(!this.options.get("embedded")){this.positionCalendarDiv()};this.callback("after_show")
  	},
  	_oldIE:function(){
		return(Prototype.Browser.IE&&parseFloat(navigator.appVersion.split(';')[1].strip().split(' ')[1])<=6)?true:false;
	},
  	positionCalendarDiv:function(){
		var above=false,c_pos=this.calendar_div.cumulativeOffset(),c_left=c_pos[0],c_top=c_pos[1],c_dim=this.calendar_div.getDimensions(),c_height=c_dim.height,c_width=c_dim.width,w_top=window.f_scrollTop(),w_height=window.f_height();
		var e_dim=$(this.options.get("popup_by")).cumulativeOffset(),e_top=e_dim[1],e_left=e_dim[0],e_height=$(this.options.get("popup_by")).getDimensions().height,e_bottom=e_top+e_height;
		if(((e_bottom+c_height)>(w_top + w_height)) && ( e_bottom - c_height > w_top )) above = true;
		var left_px = e_left.toString() + "px", top_px = (above ? (e_top - c_height ) : ( e_top + e_height )).toString() + "px";
		this.calendar_div.style.left=left_px; this.calendar_div.style.top = top_px;
		this.calendar_div.setStyle({visibility:""});
		if(this._oldIE())	// Draw an iframe behind the calendar(for IE6)...
		this.iframe=$(document.body).build("iframe",{src:"javascript:false",className:"ie6_blocker"},
			{left:left_px,top:top_px,height:c_height.toString()+"px",width:c_width.toString()+"px",border:"0px"})
  	},
  	init:function(){	// Keep it X browser...
		var hbkimg=(this._oldIE()==true)?"url(/images/cffa_calendar_top_ie6.png)":"url(/images/cffa_calendar_top.png)";
		this.header_div=new Element("div").setStyle({position:"relative",width:"100%",height:"22px",backgroundImage:hbkimg});
		this.body_div=new Element("div",{"class":"cds_body"}).setStyle({clear:"left",borderLeft:"2px solid #7C010E",borderRight:"2px solid #390006"});	
		this.buttons_div=new Element("div").setStyle({clear:"left",borderLeft:"2px solid #7C010E",borderRight:"2px solid #390006",textAlign:"center",backgroundColor:"#024",height:"14px",lineHeight:"13px",fontSize:"12px",fontWeight:"bold"});
		var fbkimg=(this._oldIE()==true)?"url(/images/cffa_calendar_bottom_ie6.png)":"url(/images/cffa_calendar_bottom.png)";
		this.footer_div=new Element("div").setStyle({clear:"left",fontSize:"12px",fontWeight:"bold",textAlign:"center",color:"#390006",height:"24px",lineHeight:"20px",color:"#FF0",backgroundImage:fbkimg});
		this.calendar_div.insert(this.header_div);this.calendar_div.insert(this.body_div);
		this.calendar_div.insert(this.buttons_div);this.calendar_div.insert(this.footer_div);
		this.initHeaderDiv();this.initButtonsDiv();this.initCalendarGrid();
		this.refresh();this.setUseTime(this.use_time);
  	},
  	initHeaderDiv:function(){var header_div=this.header_div;
		if(this.options.get("month_year")=="dropdowns"){
			var monthContainer=new Element("div").setStyle({position:"absolute",left:"4px",top:"3px",width:"80px",height:"18px"});
			this.header_div.insert(monthContainer);
		  	this.month_select=new SelectBox(monthContainer,$R(0,11).map(function(m){return [Date.months[m], m]}),{onchange: function(){this.navMonth(this.month_select.getValue()) }.bindAsEventListener(this)},{color:"#002244",fontSize:"10px",height:"18px"}); 
			var yearContainer=new Element("div").setStyle({position:"absolute",left:"88px",top:"3px",width:"60px",height:"18px"});
		  	this.header_div.insert(yearContainer);
		  	this.year_select = new SelectBox(yearContainer,[],{className:"year",onchange:function(){this.navYear(this.year_select.getValue())}.bindAsEventListener(this)},{color:"#000000",fontSize:"10px",height:"18px"}); 
		  	this.populateYearRange();
		}else{this.month_year_label=header_div.build("span")}
  	},
  	initCalendarGrid: function() {
		var body_div=this.body_div;
		this.calendar_day_grid=[];
		var days_table=body_div.build("table",{cellPadding:"0px",cellSpacing:"0px",width:"100%"});
		// make the weekdays!
		var weekdays_row=days_table.build("thead").build("tr");
		Date.weekdays.each( function(weekday){weekdays_row.build("th",{innerHTML: weekday});});
		var days_tbody = days_table.build("tbody")
		// Make the days!
		var row_number = 0, weekday;
		for(var cell_index = 0;cell_index<42;cell_index++){
			weekday = (cell_index+Date.first_day_of_week ) % 7;
			if ( cell_index % 7==0 )days_row=days_tbody.build("tr",{className:'row_'+row_number++});
			(this.calendar_day_grid[cell_index] = days_row.build("td",{
				calendar_date_select:this,
				onmouseover: function () { this.calendar_date_select.dayHover(this); },
				onmouseout: function () { this.calendar_date_select.dayHoverOut(this) },
				onclick: function() { this.calendar_date_select.updateSelectedDate(this, true); },
				className: (weekday==0) || (weekday==6) ? " weekend" : "" //clear the class
			},{ cursor: "pointer" })).build("div");
			this.calendar_day_grid[cell_index];
		}
  	},
  	initButtonsDiv:function(){
    	var buttons_div=this.buttons_div;
		b=buttons_div.build("span",{innerHTML:(this.options.get("arrival"))?"Arrival Date":"Departure Date"});
		b.setStyle({color:"#FFFFFF",fontSize:"12px",fontWeight:"bold"});
  	},
  	refresh:function(){
    	this.refreshMonthYear();
    	this.refreshCalendarGrid();
    	this.setSelectedClass();
    	this.updateFooter();
  	},
  	refreshCalendarGrid:function(){
    	this.beginning_date = new Date(this.date).stripTime();
    	this.beginning_date.setDate(1);
    	this.beginning_date.setHours(12); // Prevent daylight savings time boundaries from showing a duplicate day
    	var pre_days = this.beginning_date.getDay() // draw some days before the fact
    	if (pre_days < 3) pre_days += 7;
    	this.beginning_date.setDate(1 - pre_days + Date.first_day_of_week);
    
    	var iterator = new Date(this.beginning_date);
    
    	var today = new Date().stripTime();
    	var this_month = this.date.getMonth();
    	vdc = this.options.get("valid_date_check");
    	for (var cell_index = 0;cell_index<42; cell_index++){
      		day = iterator.getDate(); month = iterator.getMonth();
      		cell = this.calendar_day_grid[cell_index];
      		Element.remove(cell.childNodes[0]); div = cell.build("div", {innerHTML:day});
      		if (month!=this_month) div.className = "other";
      		cell.day = day; cell.month = month; cell.year = iterator.getFullYear();
      		if (vdc) { if (vdc(iterator.stripTime())) cell.removeClassName("disabled"); else cell.addClassName("disabled") };
      		iterator.setDate( day + 1);
    	}
    	if(this.today_cell) this.today_cell.removeClassName("today");
    	if($R(0,42).include(days_until = this.beginning_date.stripTime().daysDistance(today))){
      		this.today_cell=this.calendar_day_grid[days_until];this.today_cell.addClassName("today");
    	}
  	},
  	refreshMonthYear:function(){
    	var m=this.date.getMonth(),y=this.date.getFullYear();
    	// set the month
    	if(this.options.get("month_year")=="dropdowns"){
      		this.month_select.setValue(m,false);
      		var e=this.year_select.element; 
      		if(this.flexibleYearRange()&&(!(this.year_select.setValue(y,false))||e.selectedIndex<=1||e.selectedIndex>=e.options.length-2))this.populateYearRange();
      		this.year_select.setValue(y);
    	}else this.month_year_label.update( Date.months[m] + " " + y.toString()  );
  	},
  	populateYearRange:function(){this.year_select.populate(this.yearRange().toArray());},
  	yearRange:function(){
    	if(!this.flexibleYearRange())return $R(this.options.get("year_range")[0], this.options.get("year_range")[1]);
    	var y=this.date.getFullYear();
    	return $R(y-this.options.get("year_range"),y+this.options.get("year_range"));
  	},
  	flexibleYearRange:function(){return(typeof(this.options.get("year_range"))=="number");},
  	validYear:function(year){if(this.flexibleYearRange())return true;else return this.yearRange().include(year);},
  	dayHover:function(element){
    	var hover_date = new Date(this.selected_date);
    	hover_date.setYear(element.year); 
		hover_date.setDate(element.day);
		hover_date.setMonth(element.month); 
    	this.updateFooter(hover_date.toFormattedString(this.use_time));
		element.setStyle({backgroundColor:"#FFF",color:"#024"});
  	},
  	dayHoverOut:function(element){ 
  		this.updateFooter(); 
		element.setStyle({backgroundColor:(element.hasClassName("weekend"))?"#699":"#069",color:"#FF0"});
	},
  	setSelectedClass:function(){if(!this.selection_made)return;
    	// clear selection
    	if(this.selected_cell)this.selected_cell.removeClassName("selected");
    	if($R(0,42).include(days_until=this.beginning_date.stripTime().daysDistance(this.selected_date.stripTime()))){
      		this.selected_cell=this.calendar_day_grid[days_until];
      		this.selected_cell.addClassName("selected");
    	}
  	},
  	reparse:function(){ this.parseDate(); this.refresh(); },
  	dateString:function(){return(this.selection_made)?this.selected_date.toFormattedString(this.use_time):"&#160;";},
  	parseDate:function(){
		var value = $F(this.target_element).strip()
		this.date = value=="" ? NaN : Date.parseFormattedString(this.options.get("date") || value);
		if (isNaN(this.date)) this.date = new Date();
		if (!this.validYear(this.date.getFullYear())) this.date.setYear( (this.date.getFullYear() < this.yearRange().start) ? this.yearRange().start : this.yearRange().end);
		this.selected_date = new Date(this.date);
		this.use_time = /[0-9]:[0-9]{2}/.exec(value) ? true : false;
		this.date.setDate(1);
  	},
	updateFooter:function(text){ 
  		if(!text)text=this.dateString(); 
		this.footer_div.purgeChildren(); 
		this.footer_div.build("span",{innerHTML:text}); 
	},
  	updateSelectedDate:function(partsOrElement,via_click){var parts=$H(partsOrElement);
    	if((this.target_element.disabled||this.target_element.readOnly)&&this.options.get("popup")!="force")return false;
    	if(parts.get("day")){var t_selected_date=this.selected_date,vdc=this.options.get("valid_date_check");
      		for(var x=0;x<=3;x++)t_selected_date.setDate(parts.get("day"));
      		t_selected_date.setYear(parts.get("year"));
      		t_selected_date.setMonth(parts.get("month"));
      		if(vdc&& !vdc(t_selected_date.stripTime())){return false;}
      		this.selected_date=t_selected_date;
      		this.selection_made=true;
    	}
    	if(!isNaN(parts.get("hour")))this.selected_date.setHours(parts.get("hour"));
    	if(!isNaN(parts.get("minute")))this.selected_date.setMinutes(Math.floor_to_interval(parts.get("minute"),this.options.get("minute_interval")));
		if(parts.get("hour")===""||parts.get("minute")==="")this.setUseTime(false);
		else if(!isNaN(parts.get("hour"))||!isNaN(parts.get("minute")))this.setUseTime(true);
		this.updateFooter();this.setSelectedClass();
		if (this.selection_made) this.updateValue();
		if(this.options.get("close_on_click")){this.close();}
		if(via_click && !this.options.get("embedded")){if((new Date()-this.last_click_at)<333)this.close();
		  	this.last_click_at = new Date();
		}
  	},
  	navMonth:function(month){(target_date=new Date(this.date)).setMonth(month);return (this.navTo(target_date));},
  	navYear:function(year){(target_date=new Date(this.date)).setYear(year);return(this.navTo(target_date));},
  	navTo:function(date){if(!this.validYear(date.getFullYear()))return false;
		this.date=date;this.date.setDate(1);this.refresh();this.callback("after_navigate",this.date);
		return true;
  	},
  	setUseTime: function(turn_on){
    	this.use_time=this.options.get("time") && (this.options.get("time")=="mixed" ? turn_on : true);
    	if(this.use_time && this.selected_date){ // only set hour/minute if a date is already selected
			var minute = Math.floor_to_interval(this.selected_date.getMinutes(), this.options.get("minute_interval"));
			var hour = this.selected_date.getHours();
			this.hour_select.setValue(hour);
			this.minute_select.setValue(minute)
    	}else if(this.options.get("time")=="mixed"){
      		this.hour_select.setValue(""); this.minute_select.setValue("");
    	}
  	},
  	updateValue:function(){
		var last_value=this.target_element.value;
		this.target_element.value = this.dateString();
		if(last_value!=this.target_element.value) this.callback("onchange");
  	},
  	today:function(now){
		var d = new Date(); this.date = new Date();
		var o = $H({ day: d.getDate(), month: d.getMonth(), year: d.getFullYear(), hour: d.getHours(), minute: d.getMinutes()});
		if(!now) o = o.merge({hour: "", minute:""}); 
		this.updateSelectedDate(o, true);
		this.refresh();
  	},
  	close:function(){if(this.closed)return false;
		this.callback("before_close");
		this.target_element.calendar_date_select=nil;
		Event.stopObserving(document, "mousedown", this.closeIfClickedOut_handler);
		Event.stopObserving(document, "keypress", this.keyPress_handler);
		this.calendar_div.remove();this.closed = true;
		if(this.iframe)this.iframe.remove();
		if(this.target_element.type!="hidden")this.target_element.focus();
		this.callback("after_close");
  	},
  	closeIfClickedOut:function(e){if(!$(Event.element(e)).descendantOf(this.calendar_div))this.close();},
  	keyPress:function(e){if(e.keyCode==Event.KEY_ESC)this.close();},
  	callback:function(name,param){if(this.options.get(name)){this.options.get(name).bind(this.target_element)(param);}}}
);