//	written	by Tan Ling	Wee	on 2 Dec 2001
//	last updated 12 Jan 2002
//	email :	fuushikaden@yahoo.com

	var cal_initialized = false
	var	fixedX = -1 // x position (-1 if to appear below control)
	var	fixedY = -1 // y position (-1 if to appear below control)
	var startAt = 0 // 0 - sunday ; 1 - monday
	var showWeekNumber = 0	// 0 - don't show; 1 - show
	var showToday = 1		// 0 - don't show; 1 - show

	var gotoString = "Go To Current Month"
	var todayString = "Today is "
	var weekString = "Wk"
	var scrollLeftMessage = "Click to scroll to previous month. Hold mouse button to scroll automatically."
	var scrollRightMessage = "Click to scroll to next month. Hold mouse button to scroll automatically."
	var selectMonthMessage = "Click to select a month."
	var selectYearMessage = "Click to select a year."
	var selectDateMessage = "[date]" // do not replace [date], it will be replaced by date.

	var	crossobj, crossMonthObj, crossYearObj, monthSelected, yearSelected, dateSelected, omonthSelected, oyearSelected, odateSelected, monthConstructed, yearConstructed, intervalID1, intervalID2, timeoutID1, timeoutID2, ctlMonthToPlaceValue, ctlDayToPlaceValue, ctlYearToPlaceValue, ctlNow, dateFormat, nStartingYear

	var	bPageLoaded=false
	var	ie=document.all
	var	dom=document.getElementById

	var	ns4=document.layers
	var	today =	new	Date()
	var	dateNow	 = today.getDate()
	var	monthNow = today.getMonth()
	var	yearNow	 = today.getYear()
	var	imgsrc = new Array("images/drop1.gif","images/drop2.gif","images/left1.gif","images/left2.gif","images/right1.gif","images/right2.gif")
	var	img	= new Array()

	function HolidayRec (d, m, y, desc)
	{
		this.d = d
		this.m = m
		this.y = y
		this.desc = desc
	}

	var HolidaysCounter = 0
	var Holidays = new Array()

	function addHoliday (d, m, y, desc)
	{
		Holidays[HolidaysCounter++] = new HolidayRec ( d, m, y, desc )
	}


	if (dom)
	{
		for	(i=0;i<imgsrc.length;i++)
		{
			img[i] = new Image
			img[i].src=imgsrc[i]
		}
		document.write ("<div id='calendar'	style='position:absolute;visibility:hidden;'><table	width="+((showWeekNumber==1)?250:220)+" style='font-family:arial;font-size:11px;border-width:1;border-style:solid;border-color:#a0a0a0;font-family:arial; font-size:11px}' bgcolor='#ffffff'><tr bgcolor='#0000aa'><td><table width='"+((showWeekNumber==1)?248:218)+"'><tr><td style='padding:2px;font-family:arial; font-size:11px;'><font color='#ffffff'><B><span id='caption'></span></B></font></td><td align=right><a href='javascript:hideCalendar()'><IMG SRC='images/close.gif' WIDTH='15' HEIGHT='13' BORDER='0' ALT='Close Calendar'></a></td></tr></table></td></tr><tr><td style='padding:5px' bgcolor=#ffffff><span id='content'></span></td></tr>")
			
		if (showToday==1)
		{
			document.write ("<tr bgcolor=#E8E8E8><td style='padding:5px' align=center><span id='lblToday'></span></td></tr>")
		}
			
		document.write ("</table></div><div id='selectMonth' style='position:absolute;visibility:hidden;'></div><div id='selectYear'	style='position:absolute;visibility:hidden;'></div>");
	}

	var	monthName =	new	Array("January","February","March","April","May","June","July","August","September","October","November","December")
	if (startAt==0)
	{
		dayName = new Array	("Sun","Mon","Tue","Wed","Thu","Fri","Sat")
	}
	else
	{
		dayName = new Array	("Mon","Tue","Wed","Thu","Fri","Sat","Sun")
	}
	var	styleAnchor="text-decoration:none;color:black;"
	var	styleLightBorder="border-style:solid;border-width:1px;border-color:#a0a0a0;"

	function swapImage(srcImg, destImg){
		if (ie)	{ document.getElementById(srcImg).setAttribute("src",destImg) }
	}

	function init()	{
		if ((!ns4) && (! cal_initialized))
		{
			if (!ie) { yearNow += 1900	}

			crossobj=(dom)?document.getElementById("calendar").style : ie? document.all.calendar : document.calendar
			hideCalendar()

			crossMonthObj=(dom)?document.getElementById("selectMonth").style : ie? document.all.selectMonth	: document.selectMonth

			crossYearObj=(dom)?document.getElementById("selectYear").style : ie? document.all.selectYear : document.selectYear

			monthConstructed=false;
			yearConstructed=false;

			if (showToday==1)
			{
				document.getElementById("lblToday").innerHTML =	todayString + "<a onmousemove='window.status=\""+gotoString+"\"' onmouseout='window.status=\"\"' title='"+gotoString+"' style='"+styleAnchor+"' href='javascript:monthSelected=monthNow;yearSelected=yearNow;constructCalendar();'>"+dayName[(today.getDay()-startAt==-1)?6:(today.getDay()-startAt)]+", " + monthName[monthNow]	+ "	" + dateNow + ", " +	yearNow	+ "</a>"
			}

			sHTML1="<span id='spanLeft'	style='border-style:solid;border-width:1;border-color:#3366FF;cursor:hand' onmouseover='swapImage(\"changeLeft\",\"images/left2.gif\");this.style.borderColor=\"#88AAFF\";window.status=\""+scrollLeftMessage+"\"' onclick='javascript:decMonth()' onmouseout='clearInterval(intervalID1);swapImage(\"changeLeft\",\"images/left1.gif\");this.style.borderColor=\"#3366FF\";window.status=\"\"' onmousedown='clearTimeout(timeoutID1);timeoutID1=setTimeout(\"StartDecMonth()\",500)'	onmouseup='clearTimeout(timeoutID1);clearInterval(intervalID1)'>&nbsp<IMG id='changeLeft' SRC='images/left1.gif' BORDER=0>&nbsp</span>&nbsp;"
			sHTML1+="<span id='spanRight' style='border-style:solid;border-width:1;border-color:#3366FF;cursor:hand' onmouseover='swapImage(\"changeRight\",\"images/right2.gif\");this.style.borderColor=\"#88AAFF\";window.status=\""+scrollRightMessage+"\"' onmouseout='clearInterval(intervalID1);swapImage(\"changeRight\",\"images/right1.gif\");this.style.borderColor=\"#3366FF\";window.status=\"\"' onclick='incMonth()' onmousedown='clearTimeout(timeoutID1);timeoutID1=setTimeout(\"StartIncMonth()\",500)'	onmouseup='clearTimeout(timeoutID1);clearInterval(intervalID1)'>&nbsp<IMG id='changeRight' SRC='images/right1.gif'	BORDER=0>&nbsp</span>&nbsp"
			sHTML1+="<span id='spanMonth' style='border-style:solid;border-width:1;border-color:#3366FF;cursor:hand' onmouseover='swapImage(\"changeMonth\",\"images/drop2.gif\");this.style.borderColor=\"#88AAFF\";window.status=\""+selectMonthMessage+"\"' onmouseout='swapImage(\"changeMonth\",\"images/drop1.gif\");this.style.borderColor=\"#3366FF\";window.status=\"\"' onclick='popUpMonth()'></span>&nbsp;"
			sHTML1+="<span id='spanYear' style='border-style:solid;border-width:1;border-color:#3366FF;cursor:hand' onmouseover='swapImage(\"changeYear\",\"images/drop2.gif\");this.style.borderColor=\"#88AAFF\";window.status=\""+selectYearMessage+"\"'	onmouseout='swapImage(\"changeYear\",\"images/drop1.gif\");this.style.borderColor=\"#3366FF\";window.status=\"\"'	onclick='popUpYear()'></span>&nbsp;"
			
			document.getElementById("caption").innerHTML  =	sHTML1

			bPageLoaded=true
			cal_initialized = true
		}
	}

	function hideCalendar()	{
		crossobj.visibility="hidden"
		if (crossMonthObj != null){crossMonthObj.visibility="hidden"}
		if (crossYearObj !=	null){crossYearObj.visibility="hidden"}
	}

	function padZero(num) {
		return (num	< 10)? '0' + num : num ;
	}

	function constructDate(d,m,y)
	{
		sTmp = dateFormat
		sTmp = sTmp.replace	("dd","<e>")
		sTmp = sTmp.replace	("d","<d>")
		sTmp = sTmp.replace	("<e>",padZero(d))
		sTmp = sTmp.replace	("<d>",d)
		sTmp = sTmp.replace	("mmm","<o>")
		sTmp = sTmp.replace	("mm","<n>")
		sTmp = sTmp.replace	("m","<m>")
		sTmp = sTmp.replace	("<m>",m+1)
		sTmp = sTmp.replace	("<n>",padZero(m+1))
		sTmp = sTmp.replace	("<o>",monthName[m])
		return sTmp.replace ("yyyy",y)
	}

	function closeCalendar() {
		var	sTmp

		hideCalendar();
		ctlMonthToPlaceValue.value = monthName[monthSelected]
		
		if (ctlDayToPlaceValue != ctlMonthToPlaceValue)
		{
			ctlDayToPlaceValue.value =	padZero(dateSelected)
		}

		ctlYearToPlaceValue.value =	yearSelected
	}

	/*** Month Pulldown	***/

	function StartDecMonth()
	{
		intervalID1=setInterval("decMonth()",80)
	}

	function StartIncMonth()
	{
		intervalID1=setInterval("incMonth()",80)
	}

	function incMonth () {
		monthSelected++
		if (monthSelected>11) {
			monthSelected=0
			yearSelected++
		}
		constructCalendar()
	}

	function decMonth () {
		monthSelected--
		if (monthSelected<0) {
			monthSelected=11
			yearSelected--
		}
		constructCalendar()
	}

	function constructMonth() {
		popDownYear()
		if (!monthConstructed) {
			sHTML =	""
			for	(i=0; i<12;	i++) {
				sName =	monthName[i];
				if (i==monthSelected){
					sName =	"<B>" +	sName +	"</B>"
				}
				sHTML += "<tr><td id='m" + i + "' onmouseover='this.style.backgroundColor=\"#C0C0C0\"' onmouseout='this.style.backgroundColor=\"\"' style='cursor:hand' onclick='monthConstructed=false;monthSelected=" + i + ";constructCalendar();popDownMonth();event.cancelBubble=true'>&nbsp;" + sName + "&nbsp;</td></tr>"
			}

			document.getElementById("selectMonth").innerHTML = "<table width=70	style='font-family:arial; font-size:11px; border-width:1; border-style:solid; border-color:#a0a0a0;' bgcolor='#E8E8E8' cellspacing=0 onmouseover='clearTimeout(timeoutID1)'	onmouseout='clearTimeout(timeoutID1);timeoutID1=setTimeout(\"popDownMonth()\",100);event.cancelBubble=true'>" +	sHTML +	"</table>"

			monthConstructed=true
		}
	}

	function popUpMonth() {
		constructMonth()
		crossMonthObj.visibility = (dom||ie)? "visible"	: "show"
		crossMonthObj.left = parseInt(crossobj.left) + 50
		crossMonthObj.top =	parseInt(crossobj.top) + 26
	}

	function popDownMonth()	{
		crossMonthObj.visibility= "hidden"
	}

	/*** Year Pulldown ***/

	function incYear() {
		for	(i=0; i<7; i++){
			newYear	= (i+nStartingYear)+1
			if (newYear==yearSelected)
			{ txtYear =	"&nbsp;<B>"	+ newYear +	"</B>&nbsp;" }
			else
			{ txtYear =	"&nbsp;" + newYear + "&nbsp;" }
			document.getElementById("y"+i).innerHTML = txtYear
		}
		nStartingYear ++;
	}

	function decYear() {
		for	(i=0; i<7; i++){
			newYear	= (i+nStartingYear)-1
			if (newYear==yearSelected)
			{ txtYear =	"&nbsp;<B>"	+ newYear +	"</B>&nbsp;" }
			else
			{ txtYear =	"&nbsp;" + newYear + "&nbsp;" }
			document.getElementById("y"+i).innerHTML = txtYear
		}
		nStartingYear --;
	}

	function selectYear(nYear) {
		yearSelected=parseInt(nYear+nStartingYear);
		yearConstructed=false;
		constructCalendar();
		popDownYear();
	}

	function constructYear() {
		popDownMonth()
		sHTML =	""
		if (!yearConstructed) {

			sHTML =	"<tr><td align='center'	onmouseover='this.style.backgroundColor=\"#C0C0C0\"' onmouseout='clearInterval(intervalID1);this.style.backgroundColor=\"\"' style='cursor:hand'	onmousedown='clearInterval(intervalID1);intervalID1=setInterval(\"decYear()\",30)' onmouseup='clearInterval(intervalID1)'>-</td></tr>"

			j =	0
			nStartingYear =	yearSelected-3
			for	(i=(yearSelected-3); i<=(yearSelected+3); i++) {
				sName =	i;
				if (i==yearSelected){
					sName =	"<B>" +	sName +	"</B>"
				}

				sHTML += "<tr><td id='y" + j + "' onmouseover='this.style.backgroundColor=\"#C0C0C0\"' onmouseout='this.style.backgroundColor=\"\"' style='cursor:hand' onclick='selectYear("+j+");event.cancelBubble=true'>&nbsp;" + sName + "&nbsp;</td></tr>"
				j ++;
			}

			sHTML += "<tr><td align='center' onmouseover='this.style.backgroundColor=\"#C0C0C0\"' onmouseout='clearInterval(intervalID2);this.style.backgroundColor=\"\"' style='cursor:hand' onmousedown='clearInterval(intervalID2);intervalID2=setInterval(\"incYear()\",30)'	onmouseup='clearInterval(intervalID2)'>+</td></tr>"

			document.getElementById("selectYear").innerHTML	= "<table width=44 style='font-family:arial; font-size:11px; border-width:1; border-style:solid; border-color:#a0a0a0;'	bgcolor='#E8E8E8' onmouseover='clearTimeout(timeoutID2)' onmouseout='clearTimeout(timeoutID2);timeoutID2=setTimeout(\"popDownYear()\",100)' cellspacing=0>"	+ sHTML	+ "</table>"

			yearConstructed	= true
		}
	}

	function popDownYear() {
		clearInterval(intervalID1)
		clearTimeout(timeoutID1)
		clearInterval(intervalID2)
		clearTimeout(timeoutID2)
		crossYearObj.visibility= "hidden"
	}

	function popUpYear() {
		var	leftOffset

		constructYear()
		crossYearObj.visibility	= (dom||ie)? "visible" : "show"
		leftOffset = parseInt(crossobj.left) + document.getElementById("spanYear").offsetLeft
		if (ie)
		{
			leftOffset += 6
		}
		crossYearObj.left =	leftOffset
		crossYearObj.top = parseInt(crossobj.top) +	26
	}

	/*** calendar ***/

	function WeekNbr(n) {
		var P3D=259200000, P7D=604800000, y=n.getYear(), y=(y<1000?1900+y:y);
		var s=Math.floor((Date.UTC(y,n.getMonth(),n.getDate())+P3D)/P7D);
		tmp=new Date(s*P7D); j=tmp.getYear(); j=(j<1000?1900+j:j);
		return 1+s-Math.floor((Date.UTC(j,0,4)+P3D)/P7D)
	}


	function constructCalendar () {
		var dateMessage
		var	startDate =	new	Date (yearSelected,monthSelected,1)
		var	endDate	= new Date (yearSelected,monthSelected+1,1);
		endDate	= new Date (endDate	- (24*60*60*1000));
		numDaysInMonth = endDate.getDate()

		datePointer	= 0
		dayPointer = startDate.getDay() - startAt
		
		if (dayPointer<0)
		{
			dayPointer = 6
		}

		sHTML =	"<table	 border=0 style='font-family:verdana;font-size:10px;'><tr>"

		if (showWeekNumber==1)	// Week numbering
		{
			sHTML += "<td width=27><b>" + weekString + "</b></td><td width=1 rowspan=7 bgcolor='#d0d0d0' style='padding:0px'><img src='images/divider.gif' width=1></td>"
		}

		for	(i=0; i<7; i++)	{		// Day headers
			sHTML += "<td width='27' align='right'><B>"+ dayName[i]+"</B></td>"
		}
		sHTML +="</tr><tr>"
		
		if (showWeekNumber==1)
		{
			sHTML += "<td align=right>" + WeekNbr(startDate) + "&nbsp;</td>"
		}

		for	( var i=1; i<=dayPointer;i++ )
		{
			sHTML += "<td>&nbsp;</td>"
		}
	
		for	( datePointer=1; datePointer<=numDaysInMonth; datePointer++ )
		{
			dayPointer++;
			sHTML += "<td align=right>"
			sStyle=styleAnchor
			if ((datePointer==odateSelected) &&	(monthSelected==omonthSelected)	&& (yearSelected==oyearSelected))
			{ sStyle+=styleLightBorder }

			sHint = ""
			for (k=0;k<HolidaysCounter;k++)
			{
				if ((parseInt(Holidays[k].d)==datePointer)&&(parseInt(Holidays[k].m)==(monthSelected+1)))
				{
					if ((parseInt(Holidays[k].y)==0)||((parseInt(Holidays[k].y)==yearSelected)&&(parseInt(Holidays[k].y)!=0)))
					{
						sStyle+="background-color:#FFDDDD;"
						sHint+=sHint==""?Holidays[k].desc:"\n"+Holidays[k].desc
					}
				}
			}

			var regexp= /\"/g
			sHint=sHint.replace(regexp,"&quot;")

			dateMessage = "onmousemove='window.status=\""+selectDateMessage.replace("[date]",constructDate(datePointer,monthSelected,yearSelected))+"\"' onmouseout='window.status=\"\"' "

			if ((datePointer==dateNow)&&(monthSelected==monthNow)&&(yearSelected==yearNow))
			{ sHTML += "<b><a "+dateMessage+" title=\"" + sHint + "\" style='"+sStyle+"' href='javascript:dateSelected="+datePointer+";closeCalendar();'><font color=#ff0000>&nbsp;" + datePointer + "</font>&nbsp;</a></b>"}
			else if	(dayPointer % 7 == (startAt * -1)+1)
			{ sHTML += "<a "+dateMessage+" title=\"" + sHint + "\" style='"+sStyle+"' href='javascript:dateSelected="+datePointer + ";closeCalendar();'>&nbsp;<font color=#909090>" + datePointer + "</font>&nbsp;</a>" }
			else
			{ sHTML += "<a "+dateMessage+" title=\"" + sHint + "\" style='"+sStyle+"' href='javascript:dateSelected="+datePointer + ";closeCalendar();'>&nbsp;" + datePointer + "&nbsp;</a>" }

			sHTML += ""
			if ((dayPointer+startAt) % 7 == startAt) { 
				sHTML += "</tr><tr>" 
				if ((showWeekNumber==1)&&(datePointer<numDaysInMonth))
				{
					sHTML += "<td align=right>" + (WeekNbr(new Date(yearSelected,monthSelected,datePointer+1))) + "&nbsp;</td>"
				}
			}
		}

		document.getElementById("content").innerHTML   = sHTML
		document.getElementById("spanMonth").innerHTML = "&nbsp;" +	monthName[monthSelected] + "&nbsp;<IMG id='changeMonth' SRC='images/drop1.gif' WIDTH='12' HEIGHT='10' BORDER=0>"
		document.getElementById("spanYear").innerHTML =	"&nbsp;" + yearSelected	+ "&nbsp;<IMG id='changeYear' SRC='images/drop1.gif' WIDTH='12' HEIGHT='10' BORDER=0>"
	}

	function popUpCalendar(buttonCTL, monthCTL, dayCTL, yearCTL) {
		init()
	
		ctlMonthToPlaceValue = monthCTL
		ctlDayToPlaceValue = dayCTL
		ctlYearToPlaceValue = yearCTL
	
		var	leftpos=0
		var	toppos=0

		if (bPageLoaded)
		{
			if ( crossobj.visibility ==	"hidden" ) {
				dateFormat="mmm dd, yyyy"

				formatChar = " "
				aFormat	= dateFormat.split(formatChar)
				if (aFormat.length<3)
				{
					formatChar = "/"
					aFormat	= dateFormat.split(formatChar)
					if (aFormat.length<3)
					{
						formatChar = "."
						aFormat	= dateFormat.split(formatChar)
						if (aFormat.length<3)
						{
							formatChar = "-"
							aFormat	= dateFormat.split(formatChar)
							if (aFormat.length<3)
							{
								// invalid date	format
								formatChar=""
							}
						}
					}
				}

				tokensChanged =	0

				if ((tokensChanged!=3)||isNaN(dateSelected)||isNaN(monthSelected)||isNaN(yearSelected))
				{
					dateSelected = dateNow
					monthSelected =	monthNow
					yearSelected = yearNow
				}

				odateSelected=dateSelected
				omonthSelected=monthSelected
				oyearSelected=yearSelected

				aTag = buttonCTL
				do {
					aTag = aTag.offsetParent;
					leftpos	+= aTag.offsetLeft;
					toppos += aTag.offsetTop;
				} while(aTag.tagName!="BODY");

				crossobj.left =	fixedX==-1 ? buttonCTL.offsetLeft	+ leftpos :	fixedX
				crossobj.top = fixedY==-1 ?	buttonCTL.offsetTop +	toppos + buttonCTL.offsetHeight +	2 :	fixedY
				constructCalendar (1, monthSelected, yearSelected);
				crossobj.visibility=(dom||ie)? "visible" : "show"
			}
			else
			{
				hideCalendar()
				if (ctlNow!=buttonCTL) {popUpCalendar(buttonCTL, monthCTL, dayCTL, yearCTL)}
			}
			ctlNow = buttonCTL
		}
	}
	//window.onload=init