var MONTH_NAMES=new Array('January','February','March','April','May','June','July','August','September','October','November','December','Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec');
function LZ(x) {return(x<0||x>9?"":"0")+x}


// Fill the window with contents
function PopupWindow_populate(contents) {
	this.contents = contents;
	this.populated = false;
	}
// Refresh the displayed contents of the popup
function PopupWindow_refresh() 
{
	document.getElementById(this.divName).innerHTML = this.contents;
}

// Position and show the popup, relative to an anchor object
function PopupWindow_showPopup() 
{
	if (!this.populated && (this.contents != "")) 
	{
		this.populated = true;
		this.refresh();
	}
	
	document.getElementById(this.divName).style.visibility = "visible";
}

// Hide the popup
function PopupWindow_hidePopup() 
{
	var d = document.getElementById(this.divName);
	if (d)
		d.style.visibility = "hidden";
}

// Pass an event and return whether or not it was the popup DIV that was clicked
function PopupWindow_isClicked(e) 
{
	e = e || window.event;
	var t;	
	if (e.srcElement != undefined)
		t = e.srcElement;
	else
		t = e.target;
	
	while (t.parentNode != null) {
		if (t.id==this.divName) {
			return true;
			}
		t = t.parentNode;
		}
	return false;
}

// Check an onMouseDown event to see if we should hide
function PopupWindow_hideIfNotClicked(e) {
	if (this.autoHideEnabled && !this.isClicked(e)) {
		this.hidePopup();
		}
	}
// Call this to make the DIV disable automatically when mouse is clicked outside it
function PopupWindow_autoHide() {
	this.autoHideEnabled = true;
	}
// This global function checks all PopupWindow objects onmouseup to see if they should be hidden
function PopupWindow_hidePopupWindows(e) {
	for (var i=0; i<popupWindowObjects.length; i++) {
		if (popupWindowObjects[i] != null) {
			var p = popupWindowObjects[i];
			p.hideIfNotClicked(e);
			}
		}
	}
// Run this immediately to attach the event listener
function PopupWindow_attachListener() {
	if (document.layers) {
		document.captureEvents(Event.MOUSEUP);
		}
	window.popupWindowOldEventListener = document.onmouseup;
	if (window.popupWindowOldEventListener != null) {
		document.onmouseup = new Function("window.popupWindowOldEventListener(); PopupWindow_hidePopupWindows();");
		}
	else {
		document.onmouseup = PopupWindow_hidePopupWindows;
		}
	}
// CONSTRUCTOR for the PopupWindow object
// Pass it a DIV name to use a DHTML popup, otherwise will default to window popup
function PopupWindow(divname) {
	if (!window.popupWindowIndex) { window.popupWindowIndex = 0; }
	if (!window.popupWindowObjects) { window.popupWindowObjects = new Array(); }
	if (!window.listenerAttached) {
		window.listenerAttached = true;
		PopupWindow_attachListener();
		}
	this.index = popupWindowIndex++;
	popupWindowObjects[this.index] = this;
	this.divName = null;
	this.popupWindow = null;
	this.width=0;
	this.height=0;
	this.populated = false;
	this.visible = false;
	this.autoHideEnabled = false;
	
	this.contents = "";
	this.divName = divname;
	// Method mappings
	this.populate = PopupWindow_populate;
	this.refresh = PopupWindow_refresh;
	this.showPopup = PopupWindow_showPopup;
	this.hidePopup = PopupWindow_hidePopup;
	this.isClicked = PopupWindow_isClicked;
	this.autoHide = PopupWindow_autoHide;
	this.hideIfNotClicked = PopupWindow_hideIfNotClicked;
	}


// Quick fix for FF3
function CP_stop(e) { if (e && e.stopPropagation) { e.stopPropagation(); } }

// CONSTRUCTOR for the CalendarPopup Object
function CalendarPopup(datediv) {
	var c;
	c = new PopupWindow(datediv);
	c.autoHide();
	// Calendar-specific properties
	c.monthNames = new Array("January","February","March","April","May","June","July","August","September","October","November","December");
	c.monthAbbreviations = new Array("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec");
	c.dayHeaders = new Array("S","M","T","W","T","F","S");
	c.returnFunction = "CP_tmpReturnFunction";
	c.returnMonthFunction = "CP_tmpReturnMonthFunction";
	c.returnQuarterFunction = "CP_tmpReturnQuarterFunction";
	c.returnYearFunction = "CP_tmpReturnYearFunction";
	c.weekStartDay = 0;
	c.isShowYearNavigation = false;
	c.disabledWeekDays = new Object();
	c.disabledDatesExpression = "";
	c.yearSelectStartOffset = 2;
	c.currentDate = null;
	c.todayText="Today";
	c.cssPrefix="";
	c.isShowNavigationDropdowns=false;
	c.isShowYearNavigationInput=false;
	window.CP_calendarObject = null;
	window.CP_targetInput = null;
	window.CP_dateFormat = "MM/dd/yyyy";
	// Method mappings
	c.copyMonthNamesToWindow = CP_copyMonthNamesToWindow;
	c.setReturnFunction = CP_setReturnFunction;
	c.setReturnMonthFunction = CP_setReturnMonthFunction;
	c.setReturnQuarterFunction = CP_setReturnQuarterFunction;
	c.setReturnYearFunction = CP_setReturnYearFunction;
	c.setMonthNames = CP_setMonthNames;
	c.setMonthAbbreviations = CP_setMonthAbbreviations;
	c.setDayHeaders = CP_setDayHeaders;
	c.setWeekStartDay = CP_setWeekStartDay;
	c.setDisabledWeekDays = CP_setDisabledWeekDays;
	c.setYearSelectStartOffset = CP_setYearSelectStartOffset;
	c.setTodayText = CP_setTodayText;
	c.showYearNavigation = CP_showYearNavigation;
	c.showCalendar = CP_showCalendar;
	c.hideCalendar = CP_hideCalendar;
	c.refreshCalendar = CP_refreshCalendar;
	c.getCalendar = CP_getCalendar;
	c.select = CP_select;
	c.setCssPrefix = CP_setCssPrefix;
	c.showNavigationDropdowns = CP_showNavigationDropdowns;
	c.showYearNavigationInput = CP_showYearNavigationInput;
	c.copyMonthNamesToWindow();
	// Return the object
	return c;
	}
function CP_copyMonthNamesToWindow() {
	// Copy these values over to the date.js 
	if (typeof(window.MONTH_NAMES)!="undefined" && window.MONTH_NAMES!=null) {
		window.MONTH_NAMES = new Array();
		for (var i=0; i<this.monthNames.length; i++) {
			window.MONTH_NAMES[window.MONTH_NAMES.length] = this.monthNames[i];
		}
		for (var i=0; i<this.monthAbbreviations.length; i++) {
			window.MONTH_NAMES[window.MONTH_NAMES.length] = this.monthAbbreviations[i];
		}
	}
}
// Temporary default functions to be called when items clicked, so no error is thrown
function CP_tmpReturnFunction(y,m,d) { 
	if (window.CP_targetInput!=null) {
		var dt = new Date(y,m-1,d,0,0,0);
		if (window.CP_calendarObject!=null) { window.CP_calendarObject.copyMonthNamesToWindow(); }
		window.CP_targetInput.value = formatDate(dt,window.CP_dateFormat);
		}
	else {
		alert('Use setReturnFunction() to define which function will get the clicked results!'); 
		}
	}
function CP_tmpReturnMonthFunction(y,m) { 
	alert('Use setReturnMonthFunction() to define which function will get the clicked results!\nYou clicked: year='+y+' , month='+m); 
	}
function CP_tmpReturnQuarterFunction(y,q) { 
	alert('Use setReturnQuarterFunction() to define which function will get the clicked results!\nYou clicked: year='+y+' , quarter='+q); 
	}
function CP_tmpReturnYearFunction(y) { 
	alert('Use setReturnYearFunction() to define which function will get the clicked results!\nYou clicked: year='+y); 
	}

// Set the name of the functions to call to get the clicked item
function CP_setReturnFunction(name) { this.returnFunction = name; }
function CP_setReturnMonthFunction(name) { this.returnMonthFunction = name; }
function CP_setReturnQuarterFunction(name) { this.returnQuarterFunction = name; }
function CP_setReturnYearFunction(name) { this.returnYearFunction = name; }

// Over-ride the built-in month names
function CP_setMonthNames() {
	for (var i=0; i<arguments.length; i++) { this.monthNames[i] = arguments[i]; }
	this.copyMonthNamesToWindow();
	}

// Over-ride the built-in month abbreviations
function CP_setMonthAbbreviations() {
	for (var i=0; i<arguments.length; i++) { this.monthAbbreviations[i] = arguments[i]; }
	this.copyMonthNamesToWindow();
	}

// Over-ride the built-in column headers for each day
function CP_setDayHeaders() {
	for (var i=0; i<arguments.length; i++) { this.dayHeaders[i] = arguments[i]; }
	}

// Set the day of the week (0-7) that the calendar display starts on
// This is for countries other than the US whose calendar displays start on Monday(1), for example
function CP_setWeekStartDay(day) { this.weekStartDay = day; }

// Show next/last year navigation links
function CP_showYearNavigation() { this.isShowYearNavigation = (arguments.length>0)?arguments[0]:true; }

// Which type of calendar to display

// How many years back to start by default for year display
function CP_setYearSelectStartOffset(num) { this.yearSelectStartOffset=num; }

// Set which weekdays should not be clickable
function CP_setDisabledWeekDays() {
	this.disabledWeekDays = new Object();
	for (var i=0; i<arguments.length; i++) { this.disabledWeekDays[arguments[i]] = true; }
	}
	
// Set the text to use for the "Today" link
function CP_setTodayText(text) {
	this.todayText = text;
	}

// Set the prefix to be added to all CSS classes when writing output
function CP_setCssPrefix(val) { 
	this.cssPrefix = val; 
	}

// Show the navigation as an dropdowns that can be manually changed
function CP_showNavigationDropdowns() { this.isShowNavigationDropdowns = (arguments.length>0)?arguments[0]:true; }

// Show the year navigation as an input box that can be manually changed
function CP_showYearNavigationInput() { this.isShowYearNavigationInput = (arguments.length>0)?arguments[0]:true; }

// Hide a calendar object
function CP_hideCalendar() {
	if (arguments.length > 0) { window.popupWindowObjects[arguments[0]].hidePopup(); }
	else { this.hidePopup(); }
	}

// Refresh the contents of the calendar display
function CP_refreshCalendar(index) {
	var calObject = window.popupWindowObjects[index];
	if (arguments.length>1) { 
		calObject.populate(calObject.getCalendar(arguments[1],arguments[2],arguments[3],arguments[4],arguments[5]));
		}
	else {
		calObject.populate(calObject.getCalendar());
		}
	calObject.refresh();
	}

// Populate the calendar and display it
function CP_showCalendar() {
	this.currentDate=new Date();
	this.populate(this.getCalendar());
	this.showPopup();
	}

// Simple method to interface popup calendar with a text-entry box
function CP_select(inputobj) 
{
//	alert(inputobj);
//	if (inputobj.disabled) { return; } // Can't use calendar input on disabled form input!
	window.CP_targetInput = inputobj;
	window.CP_calendarObject = this;
	this.currentDate=null;
	this.showCalendar();
}
	

// Return a string containing all the calendar code to be displayed
function CP_getCalendar() {
	var now = new Date();
	var result = "";
	result += '<TABLE CLASS="calendar">\n';
	result += '<TR><TD ALIGN=CENTER>\n';
	result += '<CENTER>\n';
	// Code for DATE display (default)
	// -------------------------------
	if (this.currentDate==null) { this.currentDate = now; }
	if (arguments.length > 0) { var month = arguments[0]; }
		else { var month = this.currentDate.getMonth()+1; }
	if (arguments.length > 1 && arguments[1]>0 && arguments[1]-0==arguments[1]) { var year = arguments[1]; }
		else { var year = this.currentDate.getFullYear(); }
	var daysinmonth= new Array(0,31,28,31,30,31,30,31,31,30,31,30,31);
	if ( ( (year%4 == 0)&&(year%100 != 0) ) || (year%400 == 0) ) {
		daysinmonth[2] = 29;
		}
	var current_month = new Date(year,month-1,1);
	var display_year = year;
	var display_month = month;
	var display_date = 1;
	var weekday= current_month.getDay();
	var offset = 0;
	
	offset = (weekday >= this.weekStartDay) ? weekday-this.weekStartDay : 7-this.weekStartDay+weekday ;
	if (offset > 0) {
		display_month--;
		if (display_month < 1) { display_month = 12; display_year--; }
		display_date = daysinmonth[display_month]-offset+1;
		}
	var next_month = month+1;
	var next_month_year = year;
	if (next_month > 12) { next_month=1; next_month_year++; }
	var last_month = month-1;
	var last_month_year = year;
	if (last_month < 1) { last_month=12; last_month_year--; }
	var date_class;
	result += "<TABLE WIDTH=144 BORDER=0 BORDERWIDTH=0 CELLSPACING=0 CELLPADDING=0>";
	result += '<TR>\n';
	result += '<TD CLASS="'+this.cssPrefix+'cpMonthNavigation" WIDTH="22"><A CLASS="'+this.cssPrefix+'cpMonthNavigation" HREF="javascript:CP_refreshCalendar'+'('+this.index+','+last_month+','+last_month_year+');">&lt;&lt;</A></TD>\n';
	result += '<TD CLASS="'+this.cssPrefix+'cpMonthNavigation" WIDTH="100"><SPAN CLASS="'+this.cssPrefix+'cpMonthNavigation">'+this.monthNames[month-1]+' '+year+'</SPAN></TD>\n';
	result += '<TD CLASS="'+this.cssPrefix+'cpMonthNavigation" WIDTH="22"><A CLASS="'+this.cssPrefix+'cpMonthNavigation" HREF="javascript:CP_refreshCalendar'+'('+this.index+','+next_month+','+next_month_year+');">&gt;&gt;</A></TD>\n';
	result += '</TR></TABLE>\n';
	result += '<TABLE WIDTH=120 BORDER=0 CELLSPACING=0 CELLPADDING=1 ALIGN=CENTER>\n';
	result += '<TR>\n';
	for (var j=0; j<7; j++) {

		result += '<TD CLASS="'+this.cssPrefix+'cpDayColumnHeader" WIDTH="14%"><SPAN CLASS="'+this.cssPrefix+'cpDayColumnHeader">'+this.dayHeaders[(this.weekStartDay+j)%7]+'</TD>\n';
		}
	result += '</TR>\n';
	for (var row=1; row<=6; row++) {
		result += '<TR>\n';
		for (var col=1; col<=7; col++) {
			var disabled=false;
			if (this.disabledDatesExpression!="") {
				var ds=""+display_year+LZ(display_month)+LZ(display_date);
				eval("disabled=("+this.disabledDatesExpression+")");
				}
			var dateClass = "";
			if ((display_month == this.currentDate.getMonth()+1) && (display_date==this.currentDate.getDate()) && (display_year==this.currentDate.getFullYear())) {
				dateClass = "cpCurrentDate";
				}
			else if (display_month == month) {
				dateClass = "cpCurrentMonthDate";
				}
			else {
				dateClass = "cpOtherMonthDate";
				}
			if (disabled || this.disabledWeekDays[col-1]) {
				result += '	<TD CLASS="'+this.cssPrefix+dateClass+'"><SPAN CLASS="'+this.cssPrefix+dateClass+'Disabled">'+display_date+'</SPAN></TD>\n';
				}
			else {
				var selected_date = display_date;
				var selected_month = display_month;
				var selected_year = display_year;
				if (this.displayType=="week-end") {
					var d = new Date(selected_year,selected_month-1,selected_date,0,0,0,0);
					d.setDate(d.getDate() + (7-col));
					selected_year = d.getYear();
					if (selected_year < 1000) { selected_year += 1900; }
					selected_month = d.getMonth()+1;
					selected_date = d.getDate();
					}
				result += '	<TD CLASS="'+this.cssPrefix+dateClass+'"><A HREF="javascript:'+this.returnFunction+'('+selected_year+','+selected_month+','+selected_date+');'+'CP_hideCalendar(\''+this.index+'\');" CLASS="'+this.cssPrefix+dateClass+'">'+display_date+'</A></TD>\n';
				}
			display_date++;
			if (display_date > daysinmonth[display_month]) {
				display_date=1;
				display_month++;
				}
			if (display_month > 12) {
				display_month=1;
				display_year++;
				}
			}
		result += '</TR>';
		}
	var current_weekday = now.getDay() - this.weekStartDay;
	if (current_weekday < 0) {
		current_weekday += 7;
		}
	result += '<TR>\n';
	result += '	<TD COLSPAN=7 ALIGN=CENTER CLASS="'+this.cssPrefix+'cpTodayText">\n';
	if (this.disabledDatesExpression!="") {
		var ds=""+now.getFullYear()+LZ(now.getMonth()+1)+LZ(now.getDate());
		eval("disabled=("+this.disabledDatesExpression+")");
		}
	if (disabled || this.disabledWeekDays[current_weekday+1]) {
		result += '		<SPAN CLASS="'+this.cssPrefix+'cpTodayTextDisabled">'+this.todayText+'</SPAN>\n';
		}
	else {
		result += '		<A CLASS="'+this.cssPrefix+'cpTodayText" HREF="javascript:'+this.returnFunction+'(\''+now.getFullYear()+'\',\''+(now.getMonth()+1)+'\',\''+now.getDate()+'\');'+'CP_hideCalendar(\''+this.index+'\');">'+this.todayText+'</A>\n';
		}
	result += '		<BR>\n';
	result += '	</TD></TR></TABLE></CENTER></TD></TR></TABLE>\n';

	// Code common for MONTH, QUARTER, YEAR
	// ------------------------------------
	if (this.displayType=="month" || this.displayType=="quarter" || this.displayType=="year") {
		if (arguments.length > 0) { var year = arguments[0]; }
		else { 
			if (this.displayType=="year") {	var year = now.getFullYear()-this.yearSelectStartOffset; }
			else { var year = now.getFullYear(); }
			}
		if (this.displayType!="year" && this.isShowYearNavigation) {
			result += "<TABLE WIDTH=144 BORDER=0 BORDERWIDTH=0 CELLSPACING=0 CELLPADDING=0>";
			result += '<TR>\n';
			result += '	<TD CLASS="'+this.cssPrefix+'cpYearNavigation" WIDTH="22"><A CLASS="'+this.cssPrefix+'cpYearNavigation" HREF="javascript:'+windowref+'CP_refreshCalendar('+this.index+','+(year-1)+');">&lt;&lt;</A></TD>\n';
			result += '	<TD CLASS="'+this.cssPrefix+'cpYearNavigation" WIDTH="100">'+year+'</TD>\n';
			result += '	<TD CLASS="'+this.cssPrefix+'cpYearNavigation" WIDTH="22"><A CLASS="'+this.cssPrefix+'cpYearNavigation" HREF="javascript:'+windowref+'CP_refreshCalendar('+this.index+','+(year+1)+');">&gt;&gt;</A></TD>\n';
			result += '</TR></TABLE>\n';
			}
		}
	return result;
	}