var EnhancedCalendar = {
	
	updateInputs:{ departureDate : {field : "returnDate", offset : 0}, returnDate : {field : "departureDate", offset : 0} },
	
	today:new Date(2009, 10, 20),
	maxDate:new Date(2010, 9, 20),
	displayDiv:get("travelCalendarContainer"),
	displayIFrame:get("travelCalendar"),
	calendarNames:["Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"],
	sourceElm:null,
	currentMonth:-1,
	currentYear:-1,
	invalidDate:1001,
	parsedDate:null,
	setInternals:function(Definition) {
		this.setParsedDate(Definition.sourceElm.value);
		if ( this.parsedDate.date === "" ) { this.setParsedDate( (this.today.getMonth() + 1) + "/" + this.today.getDate() + "/" + this.today.getFullYear()); }
		var sendYear = this.parsedDate.year, sendMonth = this.parsedDate.month, sendDay = this.parsedDate.day;
		this.sourceElm = Definition.sourceElm;
		this.sourceElm.onkeyup = this.updateCalendar;
		this.sourceElm.onkeydown = this.checkKeyBoardOut;
		if((this.sourceElm.value.toLowerCase() === "mm/dd/yyyy" || this.sourceElm.value.toLowerCase() === "") && exists(this.updateInputs) 
		 ) {
			var updateDef = this.updateInputs[this.sourceElm.id.replace(/\[|\]/g, "")];
			var otherInputId = updateDef.field;
			var otherInput = get(otherInputId);
			if(exists(otherInput) && otherInput.value.toLowerCase() !== "mm/dd/yyyy") {
				var data = otherInput.value.split("/")
				if(this.isValidDate(data)) {
					var adjustedDate = new Date( data[2], (data[0] - 1), data[1]);
					adjustedDate.setDate(adjustedDate.getDate() + updateDef.offset)
					sendMonth = adjustedDate.getMonth();
					sendDay = adjustedDate.getDate();
					sendYear = adjustedDate.getFullYear();
				}
			}
			
		}if(this.displayIFrame.src.indexOf("RTRCalendar.jsp?y=" + sendYear + "&m=" + sendMonth) == -1) {
			this.displayIFrame.src = "/shared/components/apps/RTRCalendar.jsp?y=" + sendYear + "&m=" + sendMonth + "&d=" + sendDay + "&from=script" + "&bookingLimit=333";
		}
	},
		
	calendar:function(Definition) {
		try {
			this.close();
			this.setInternals(Definition);
			var XY = getElementXAndYPos(Definition.sourceElm);
			this.displayDiv.style.top = (XY.y + (10)) + "px";
			this.displayDiv.style.left = (XY.x + (-10)) + "px";
			this.currentMonth = this.parsedDate.year;
			this.currentYear = this.parsedDate.month;
			show(this.displayDiv.id);
		} catch (e){ }
	},
	setDate:function(day, month, year, dayOfWeek) {
		//Had to convert month back to string so that I could display date properly as say, 03/03/2009
		var monthToDisplay = (parseInt(month, 10) + 1);
		var addZeroToDayAsPrefix = (parseInt(day, 10) < 10) ? "0" : "";
		var addZeroToMonthAsPrefix = (monthToDisplay < 10) ? "0" : "";

		this.setParsedDate(addZeroToMonthAsPrefix + monthToDisplay.toString() + "/" + (addZeroToDayAsPrefix + day) + "/" + year);
		this.setValues( { date : addZeroToMonthAsPrefix + monthToDisplay.toString() + "/" + (addZeroToDayAsPrefix + day) + "/" + year, month : month, day : day, dayOfWeek : dayOfWeek, year : year} );

		
		try {
			if(get("departureDate")) {
				var outbound = new Date (get("departureDate").value);
			} else if(get("revisedDeptDate")) {
				var outbound = new Date (get("revisedDeptDate").value);
			}
			if(get("returnDate")) {
				var inbound = new Date (get("returnDate").value);
			} else if(get("revisedReturnDate")) {
				var inbound = new Date (get("revisedReturnDate").value);
			}
			var sourceField = this.sourceElm.id;
			if(sourceField == "returnDate" && outbound > inbound){
				get("departureDate").value = "";
			} else if(sourceField == "revisedReturnDate" && outbound > inbound) {
				get("revisedDeptDate").value = "";
			}
			if(sourceField == "departureDate" && outbound > inbound){
				get("returnDate").value = "";
			} else if(sourceField == "revisedDeptDate" && outbound > inbound){
				get("revisedReturnDate").value = "";
			}
		} catch (noUpdateError) {}
		
		
				//Hiding this for new enhanced calendar pop out to work properly...hide(this.displayDiv.id);
	},
	close:function() {
		EnhancedCalendar.sourceElm = null;
		hide(EnhancedCalendar.displayDiv.id);
	},
	setValues:function (Definition) {
		this.sourceElm.value = Definition.date;
	},
	isValidDate:function(dataArray){
		if( dataArray.length !== 3) { return false; }
		if( isNaN(dataArray[0]) || isNaN(dataArray[1]) || isNaN(dataArray[2]) ) { return false; }
		if( parseInt(dataArray[0], 10) < 1 || parseInt(dataArray[0], 10) > 12 ) { return false; }
		if( parseInt(dataArray[1], 10) < 1 || parseInt(dataArray[1], 10) > 31 ) { return false; }
		if( parseInt(dataArray[2], 10) < this.today.getFullYear() || parseInt(dataArray[2], 10) > (this.today.getFullYear() + 1) ) { return false; }
		if(( parseInt(dataArray[0], 10) == 4 || parseInt(dataArray[0], 10) == 6 || parseInt(dataArray[0], 10) == 9 || parseInt(dataArray[0], 10) == 11 ) && parseInt(dataArray[1], 10) > 30) { return false;}
		//need condition to satisfy Leap Day { return true; }
		if ( parseInt(dataArray[0], 10) == 2 && parseInt(dataArray[1], 10) > 28 ) { return false;}
		return true;
	},
	setParsedDate:function(value) {
		this.parsedDate = { date:"", month:"month", day:"day", year:"year"};
		if(value.toLowerCase() === "mm/dd/yyyy") {
			this.parsedDate.month = this.today.getMonth();
			this.parsedDate.day = this.today.getDate();
			this.parsedDate.year = this.today.getFullYear();
			this.parsedDate.date = (this.parsedDate.month + 1) + "/" + this.parsedDate.day + "/" + this.parsedDate.year;
		} else {
			var date = value.split("/");
			if(this.isValidDate(date)) {
				var passedDate = new Date( date[2], (date[0] - 1), date[1]);
				this.parsedDate.month = passedDate.getMonth();
				this.parsedDate.day = passedDate.getDate();
				this.parsedDate.year = passedDate.getFullYear();
				this.parsedDate.date = (this.parsedDate.month + 1) + "/" + this.parsedDate.day + "/" + this.parsedDate.year;
			}
		}
	},
	checkKeyBoardOut:function(e) {
		var eventKeyCode = (document.all) ? window.event.keyCode : e.which;
		if(eventKeyCode === 9 || eventKeyCode === 27) {
			EnhancedCalendar.close();
		}
	},
	updateCalendar:function(e) {
		try {
			var eventKeyCode = (document.all) ? window.event.keyCode : e.which;
			if( EnhancedCalendar.sourceElm.value.split("/").length === 3  && ( (eventKeyCode >= 48 && eventKeyCode <= 57) || (eventKeyCode >= 96 && eventKeyCode <= 105) ) ) {
				EnhancedCalendar.setParsedDate(EnhancedCalendar.sourceElm.value);
				if(EnhancedCalendar.parsedDate.date !== "") {
					var newDate = new Date(EnhancedCalendar.parsedDate.year, EnhancedCalendar.parsedDate.month, EnhancedCalendar.parsedDate.day);
					if( newDate.getTime() <= EnhancedCalendar.maxDate.getTime() && newDate.getTime() >= EnhancedCalendar.today.getTime() ) {
						EnhancedCalendar.displayIFrame.src = "/shared/components/apps/RTRCalendar.jsp?y=" + EnhancedCalendar.parsedDate.year + "&m=" + EnhancedCalendar.parsedDate.month + "&from=script";
					}
				}
			}
		} catch(e) {}
	}
};
function parseDate(enhancedDateId, monthInputId, dayInputId) {
	var months = new Array("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec");
	var dateInput = get(enhancedDateId).value.split("/");
	if(EnhancedCalendar.isValidDate(dateInput)) {
		get(monthInputId).value = months[(dateInput[0] - 1)];
		get(dayInputId).value = dateInput[1];
	}
}