var weekend = [0,6];
var weekendColor = "#e0e0e0";
var fontface = "Verdana";
var fontsize = 2;
var css = "<style type='text/css'>" +
"A {TEXT-DECORATION: none;} "+
"A:hover {COLOR: #E7651A;} "+
"TR.HEADER {background-color: #5e78be } "+
".title{ font-weight: bold; color:white} "+
"</style>";

var gNow = new Date();
var ggWinCal;
isNav = (navigator.appName.indexOf("Netscape") != -1) ? true : false;
isIE = (navigator.appName.indexOf("Microsoft") != -1) ? true : false;

Calendar.Months = ["January", "February", "March", "April", "May", "June", 
"July", "August", "September", "October", "November", "December"];

// Non-Leap year Month days..
Calendar.DOMonth = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
// Leap year Month days..
Calendar.lDOMonth = [31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];

function Calendar(p_itemid, p_display_itemid, p_WinCal, p_day, p_month, p_year, p_hour, p_minute, p_format, p_time, p_timeformat,p_cmonth,p_cyear) {

	if ((p_month == null) && (p_year == null))	return;

	if (p_WinCal == null)
		this.gWinCal = ggWinCal;
	else
		this.gWinCal = p_WinCal;
	
	this.gMonthName = Calendar.get_month(p_month);
	this.gMonth = new Number(p_month);
	this.gYear = p_year;
	this.gDay = p_day;
	this.gHour = p_hour;
	this.gMinute = p_minute;
	this.gFormat = p_format;
	this.gTime = p_time;
	this.gTimeFormat = p_timeformat;
	this.gBGColor = "white";
	this.gFGColor = "black";
	this.gTextColor = "black";
	this.gHeaderColor = "9BAEDF";
	this.gLinkColor="black";
	this.gReturnItem = "getElementById('"+p_itemid+"')";
	this.gReturnDisplayItem = "getElementById('"+p_display_itemid+"')";
	this.gItemId = p_itemid;
	this.gDisplay_ItemId = p_display_itemid;
	
	this.gCMonth = new Number(p_cmonth);
	this.gCMonthName = Calendar.get_month(p_cmonth);
	this.gCYear = p_cyear
}

Calendar.get_month = Calendar_get_month;
Calendar.get_daysofmonth = Calendar_get_daysofmonth;
Calendar.calc_month_year = Calendar_calc_month_year;
Calendar.print = Calendar_print;

function Calendar_get_month(monthNo) {
	return Calendar.Months[monthNo];
}

function Calendar_get_daysofmonth(monthNo, p_year) {
	/* 
	Check for leap year ..
	1.Years evenly divisible by four are normally leap years, except for... 
	2.Years also evenly divisible by 100 are not leap years, except for... 
	3.Years also evenly divisible by 400 are leap years. 
	*/
	if ((p_year % 4) == 0) {
		if ((p_year % 100) == 0 && (p_year % 400) != 0)
			return Calendar.DOMonth[monthNo];
	
		return Calendar.lDOMonth[monthNo];
	} else
		return Calendar.DOMonth[monthNo];
}

function Calendar_calc_month_year(p_Month, p_Year, incr) {
	/* 
	Will return an 1-D array with 1st element being the calculated month 
	and second being the calculated year 
	after applying the month increment/decrement as specified by 'incr' parameter.
	'incr' will normally have 1/-1 to navigate thru the months.
	*/
	var ret_arr = new Array();
	
	if (incr == -1) {
		// B A C K W A R D
		if (p_Month == 0) {
			ret_arr[0] = 11;
			ret_arr[1] = parseInt(p_Year) - 1;
		}
		else {
			ret_arr[0] = parseInt(p_Month) - 1;
			ret_arr[1] = parseInt(p_Year);
		}
	} else if (incr == 1) {
		// F O R W A R D
		if (p_Month == 11) {
			ret_arr[0] = 0;
			ret_arr[1] = parseInt(p_Year) + 1;
		}
		else {
			ret_arr[0] = parseInt(p_Month) + 1;
			ret_arr[1] = parseInt(p_Year);
		}
	}
	
	return ret_arr;
}

function Calendar_print() {
	ggWinCal.print();
}

// This is for compatibility with Navigator 3, we have to create and discard one object before the prototype object exists.
new Calendar();

Calendar.prototype.getMonthlyCalendarCode = function() {
	var vCode = "";
	var vHeader_Code = "";
	var vData_Code = "";
	// Begin Table Drawing code here..
	vCode = vCode + "<TABLE width=80% align=center BORDER=0 CELLSPACING=0 CELLPADDING=4 BGCOLOR=\"" + this.gBGColor + "\">";
	
	vHeader_Code = this.cal_header();
	vData_Code = this.cal_data();
	vCode = vCode + vHeader_Code + vData_Code;
	
	vCode = vCode + "</TABLE>";
	
	return vCode;
}

Calendar.prototype.show = function() {
	var vCode = "";

	this.gWinCal.document.open();

	// Setup the page...
	this.wwrite("<html>");
	this.wwrite("<head><title>Calendar</title>");
	this.wwrite(css);
	
	this.wwrite("</head>");

	this.wwrite("<body marginheight=0 marginwidth=0 topmargin=0 leftmargin=0 " + 
		"link=\"" + this.gLinkColor + "\" " + 
		"vlink=\"" + this.gLinkColor + "\" " +
		"alink=\"" + this.gLinkColor + "\" " +
		"text=\"" + this.gTextColor + "\" onload=\"this.focus();\">");


	// Show navigation buttons
	var prevMMYYYY = Calendar.calc_month_year(this.gCMonth, this.gCYear, -1);
	var prevMM = prevMMYYYY[0];
	var prevYYYY = prevMMYYYY[1];

	var nextMMYYYY = Calendar.calc_month_year(this.gCMonth, this.gCYear, 1);
	var nextMM = nextMMYYYY[0];
	var nextYYYY = nextMMYYYY[1];
	this.wwrite("<TABLE WIDTH='100%' BORDER=0 CELLSPACING=0 CELLPADDING=0 ><TR class='HEADER' height='30'>");
	this.wwrite("<TD ALIGN=center valign=middle width='35'>");
	this.wwrite("<A HREF=\"" +
		"javascript:window.opener.Build(" + 
		"'" + this.gItemId + "', '" +  this.gDisplay_ItemId + "', '" + this.gDay + "','" + this.gMonth + "', '" + this.gYear + "','" + this.gHour + "','" + this.gMinute + "', '" + this.gFormat + "','" + this.gTime + "','" + this.gTimeFormat + "','" + this.gCMonth+"','" + (parseInt(this.gCYear)-1) +"'" +
		");" +
		"\" class='title'><<<\/A></TD><TD ALIGN=center width='15'>");
	this.wwrite("<A HREF=\"" +
		"javascript:window.opener.Build(" + 
		"'" + this.gItemId +  "', '" +  this.gDisplay_ItemId + "', '" + this.gDay + "','" + this.gMonth + "', '" + this.gYear + "','" + this.gHour + "','" + this.gMinute + "', '" + this.gFormat + "','" + this.gTime + "','" + this.gTimeFormat + "','" + prevMM +"','" + prevYYYY + "'" +		
		");" +
		"\" class='title'><<\/A></TD><TD ALIGN=center class='title' width='150'>");
	this.wwriteA("<FONT FACE='" + fontface + "' SIZE=2><B>");
	this.wwriteA(this.gCMonthName + " " + this.gCYear);
	this.wwriteA("</B><BR></FONT>");
	this.wwrite("</TD><TD ALIGN=center width='15'>");
	this.wwrite("<A HREF=\"" +
		"javascript:window.opener.Build(" + 
		"'" + this.gItemId + "', '" + this.gDisplay_ItemId + "', '" + this.gDay + "','" + this.gMonth + "', '" + this.gYear + "','" + this.gHour + "','" + this.gMinute + "', '" + this.gFormat + "','" + this.gTime + "','" + this.gTimeFormat + "','" + nextMM +"','" + nextYYYY + "'" +		
		");" +
		"\" class='title'>><\/A></TD><TD ALIGN=center width='35'>");
	this.wwrite("<A HREF=\"" +
		"javascript:window.opener.Build(" + 
		"'" + this.gItemId + "', '" + this.gDisplay_ItemId + "', '" + this.gDay + "','" + this.gMonth + "', '" + this.gYear + "','" + this.gHour + "','" + this.gMinute + "', '" + this.gFormat + "','" + this.gTime + "','" + this.gTimeFormat + "','" + this.gCMonth+"','" + (parseInt(this.gCYear)+1) + "'" +		
		");" +
		"\" class='title'>>><\/A></TD></TR></TABLE>");

	// Get the complete calendar code for the month..
	vCode = this.getMonthlyCalendarCode();
	this.wwrite(vCode);
	
	this.wwrite("<TABLE WIDTH='100%' BORDER=0 CELLSPACING=0 CELLPADDING=0 ><TR>");
	this.wwrite("<TD ALIGN=center valign=bottom height=30>");

	var tyear = gNow.getYear();
	if (parseInt(tyear) <1000) tyear = 1900+parseInt(tyear);
	var tmonth = gNow.getMonth();
	var tday = gNow.getDay();
	
	this.wwrite("<FONT SIZE='2' FACE='" + fontface + "' ><B><A HREF=\"" +	"javascript:window.opener.Build(" + 
  		"'" + this.gItemId + "', '" + this.gDisplay_ItemId + "', '" + this.gDay + "','" + this.gMonth + "', '" + this.gYear + "','" + this.gHour + "','" + this.gMinute + "', '" + this.gFormat + "','" + this.gTime + "','" + this.gTimeFormat + "','" + tmonth +"','" + tyear + "'" +
	");" + "\">TODAY<\/A></B></FONT>");
	this.wwrite("</TD></TR></TABLE><BR>");

	// Get the Time Code
	if (this.gTime&&this.gTime!='false'){
		this.wwrite("<table width='80%' BORDER='0' CELLSPACING='0' CELLPADDING='0' align='center'>");
		this.wwrite("<TR>");
		this.wwrite("<TD width='10'>Date:&nbsp;</TD><TD width='20'><input type='hidden' name='cal_date' id='cal_date' value='"+this.format_return_data(this.gDay)+"'><input type='text' readonly='yes' onfocus='blur();' name='cal_date_display' id='cal_date_display' size='12' value='"+
			this.format_data(this.gDay) +
			"'></TD><TD>&nbsp;</TD>");
		this.wwrite("</TR>");
		this.wwrite("<TR>");

		this.wwrite("<TD>Time:&nbsp;</TD><TD>" + this.format_time_option(this.gHour,this.gMinute,this.gTimeFormat) +
			"</TD><TD>&nbsp;<input type='button' name='apply' value='Apply' onClick=\"javascript:self.opener.document." + this.gReturnItem + ".value=" + this.format_return_dtime() + ";self.opener.document." + this.gReturnDisplayItem + ".value=" + this.format_return_display_dtime() + ";window.close();\"></TD>");
		this.wwrite("</TR>");		
		this.wwrite("</TABLE><BR>");
	}
	
	this.wwrite("</body></html>");
	this.gWinCal.document.close();
}

Calendar.prototype.wwrite = function(wtext) {
	this.gWinCal.document.writeln(wtext);
}

Calendar.prototype.wwriteA = function(wtext) {
	this.gWinCal.document.write(wtext);
}

Calendar.prototype.cal_header = function() {
	var vCode = "";
	
	vCode = vCode + "<TR>";
	vCode = vCode + "<TD WIDTH='14%'><FONT SIZE='2' FACE='" + fontface + "' COLOR='" + this.gHeaderColor + "'>Sun</FONT></TD>";
	vCode = vCode + "<TD WIDTH='14%'><FONT SIZE='2' FACE='" + fontface + "' COLOR='" + this.gHeaderColor + "'>Mon</FONT></TD>";
	vCode = vCode + "<TD WIDTH='14%'><FONT SIZE='2' FACE='" + fontface + "' COLOR='" + this.gHeaderColor + "'>Tue</FONT></TD>";
	vCode = vCode + "<TD WIDTH='14%'><FONT SIZE='2' FACE='" + fontface + "' COLOR='" + this.gHeaderColor + "'>Wed</FONT></TD>";
	vCode = vCode + "<TD WIDTH='14%'><FONT SIZE='2' FACE='" + fontface + "' COLOR='" + this.gHeaderColor + "'>Thu</FONT></TD>";
	vCode = vCode + "<TD WIDTH='14%'><FONT SIZE='2' FACE='" + fontface + "' COLOR='" + this.gHeaderColor + "'>Fri</FONT></TD>";
	vCode = vCode + "<TD WIDTH='16%'><FONT SIZE='2' FACE='" + fontface + "' COLOR='" + this.gHeaderColor + "'>Sat</FONT></TD>";
	vCode = vCode + "</TR>";
	return vCode;
}

Calendar.prototype.cal_data = function() {
	var vDate = new Date();
	vDate.setDate(1);
	vDate.setMonth(this.gCMonth);
	vDate.setFullYear(this.gCYear);

	var vFirstDay=vDate.getDay();
	var vDay=1;
	var vLastDay=Calendar.get_daysofmonth(this.gCMonth, this.gCYear);
	var vOnLastDay=0;
	var vCode = "";

	/*
	Get day for the 1st of the requested month/year..
	Place as many blank cells before the 1st day of the month as necessary. 
	*/

	vCode = vCode + "<TR>";
	for (i=0; i<vFirstDay; i++) {
		vCode = vCode + "<TD WIDTH='14%'" + this.write_weekend_string(i) + "><FONT SIZE='2' FACE='" + fontface + "'> </FONT></TD>";
	}

	// Write rest of the 1st week
	for (j=vFirstDay; j<7; j++) {
		if (this.gTime&&this.gTime!='false'){
			vCode = vCode + "<TD WIDTH='14%'" + this.write_weekend_string(j) + " align=center><FONT SIZE='2' FACE='" + fontface + "'>" + 
				"<A HREF=\"" + 
					"javascript:window.opener.Build(" + 
					"'" + this.gItemId + "', '" + this.gDisplay_ItemId + "', '" + vDay + "','" + this.gCMonth + "', '" + this.gCYear + "','" + this.gHour + "','" + this.gMinute + "', '" + this.gFormat + "','" + this.gTime + "','" + this.gTimeFormat + "','" + this.gCMonth+"','" + this.gCYear + "'" +		
					");" +									
					"\">" + 
					this.format_day(vDay) + 
				"</A>" + 
				"</FONT></TD>";
		}
		else{
			vCode = vCode + "<TD WIDTH='14%'" + this.write_weekend_string(j) + " align=center><FONT SIZE='2' FACE='" + fontface + "'>" + 
				"<A HREF=\"javascript:self.opener.document." + this.gReturnItem + ".value='" + 
						this.format_return_data(vDay) + 
						"';self.opener.document." + this.gReturnDisplayItem + ".value='" + 
						this.format_data(vDay) + 
						"';window.close();\" " + 
					">" + 
					this.format_day(vDay) + 
				"</A>" + 
				"</FONT></TD>";
		}
		vDay=vDay + 1;
	}
	vCode = vCode + "</TR>";

	// Write the rest of the weeks
	for (k=2; k<7; k++) {
		vCode = vCode + "<TR>";

		for (j=0; j<7; j++) {

			if (this.gTime&&this.gTime!='false'){
				vCode = vCode + "<TD WIDTH='14%'" + this.write_weekend_string(j) + " align=center><FONT SIZE='2' FACE='" + fontface + "'>" + 
					"<A HREF=\"" + 
						"javascript:window.opener.Build(" + 
						"'" + this.gItemId + "', '" + this.gDisplay_ItemId + "', '" + vDay + "','" + this.gCMonth + "', '" + this.gCYear + "','" + this.gHour + "','" + this.gMinute + "', '" + this.gFormat + "','" + this.gTime + "','" + this.gTimeFormat + "','" + this.gCMonth+"','" + this.gCYear + "'" +		
						");" +									
						"\">" + 
						this.format_day(vDay) + 
					"</A>" + 
					"</FONT></TD>";		
			}
			else{
				vCode = vCode + "<TD WIDTH='14%'" + this.write_weekend_string(j) + " align=center><FONT SIZE='2' FACE='" + fontface + "'>" + 
					"<A HREF=\"javascript:self.opener.document." + this.gReturnItem + ".value='" + 
						this.format_return_data(vDay) + 
						"';self.opener.document." + this.gReturnDisplayItem + ".value='" + 
						this.format_data(vDay) + 
						"';window.close();\" " + 
						">" + 
						this.format_day(vDay) + 
					"</A>" + 
					"</FONT></TD>";
			}				
			vDay=vDay + 1;

			if (vDay > vLastDay) {
				vOnLastDay = 1;
				break;
			}
		}

		if (j == 6)
			vCode = vCode + "</TR>";
		if (vOnLastDay == 1)
			break;
	}
	
	// Fill up the rest of last week with proper blanks, so that we get proper square blocks
	for (m=1; m<(7-j); m++) {
			vCode = vCode + "<TD WIDTH='14%'" + this.write_weekend_string(j+m) + 
			" align=center><FONT SIZE='2' FACE='" + fontface + "' COLOR='gray'>" + m + "</FONT></TD>";
	}
	
	return vCode;
}

Calendar.prototype.format_day = function(vday) {
	var vNowDay = gNow.getDate();
	var vNowMonth = gNow.getMonth();
	var vNowYear = gNow.getFullYear();

	if (vday == vNowDay && this.gCMonth == vNowMonth && this.gCYear == vNowYear)
		return ("<FONT COLOR=\"RED\"><B>"  +vday + "</B></FONT>");
	else if (vday == this.gDay && (this.gMonth+1) == (this.gCMonth+1) && this.gYear == this.gCYear) return ("<FONT COLOR=\"GREEN\"><B>" + vday + "</B></FONT>");
	else return ( vday);
}

Calendar.prototype.format_time_option = function(vHour,vMinute,vTimeFormat) {
	sMinute = "<select id='cal_time_minute' name='cal_time_minute'" +
			" onChange =\"javascript:window.opener.Build(" + 
			"'" + this.gItemId + "', '" + this.gDisplay_ItemId + "', '" + this.gDay + "','" + this.gMonth + "', '" + this.gYear + "','" + this.gHour + "',this.value, '" + this.gFormat + "','" + this.gTime + "','" + this.gTimeFormat + "','" + this.gCMonth+"','" + this.gCYear + "'" + ")" +"\">";

	for (i=0;i<60;){
			if (i<10) j = "0" + i;
			else j = i;	
		if (vMinute == i )
			sMinute = sMinute + "<option value=" + j + " selected>" + j + "</option>";
		else
			sMinute = sMinute + "<option value=" + j + ">" + j + "</option>";
		i=i+5;
	}
	sMinute = sMinute + "</select>";


	if (vTimeFormat == '12'){
		sHour = "<select id='cal_time_hour' name='cal_time_hour'"+
			" onChange =\"javascript:window.opener.Build(" + 
			"'" + this.gItemId + "', '" + this.gDisplay_ItemId + "', '" + this.gDay + "','" + this.gMonth + "', '" + this.gYear + "', parseInt(this.value) + parseInt(document.getElementById('cal_time_ap').value), '" + this.gMinute + "','" + this.gFormat + "','" + this.gTime + "','" + this.gTimeFormat + "','" + this.gCMonth+"','" + this.gCYear + "'" + ")" +"\"" + ">";	
		for (i=1;i<=11;i++){
			if (i<10) j = "0" + i;
			else j = i;
			if ((i%12) == (vHour%12))
				sHour = sHour + "<option value=" + i + " selected>" + j + "</option>";
			else
				sHour = sHour + "<option value=" + i + ">" + j + "</option>";
		}
		if (vHour%12 == 0)
			sHour = sHour + "<option value=0 selected>12</option>";
		else
			sHour = sHour + "<option value=0>12</option>";

		if (vHour>=12)
			sAP = "&nbsp;<select id='cal_time_ap' name='cal_time_ap'"+
			" onChange =\"javascript:window.opener.Build(" + 
			"'" + this.gItemId + "', '" + this.gDisplay_ItemId + "', '" + this.gDay + "','" + this.gMonth + "', '" + this.gYear + "', parseInt(this.value) + parseInt(document.getElementById('cal_time_hour').value), '" + this.gMinute + "','" + this.gFormat + "','" + this.gTime + "','" + this.gTimeFormat + "','" + this.gCMonth+"','" + this.gCYear + "'" + ")" +"\"" + 			
			"><option value=0>AM</option><option value=12 selected>PM</option></select>";
		else
			sAP = "&nbsp;<select id='cal_time_ap' name='cal_time_ap'"+
			" onChange =\"javascript:window.opener.Build(" +
			"'" + this.gItemId + "', '" + this.gDisplay_ItemId + "', '" + this.gDay + "','" + this.gMonth + "', '" + this.gYear + "', parseInt(this.value) + parseInt(document.getElementById('cal_time_hour').value), '" + this.gMinute + "','" + this.gFormat + "','" + this.gTime + "','" + this.gTimeFormat + "','" + this.gCMonth+"','" + this.gCYear + "'" + ")" +"\"" + 			
			"><option value=0 selected>AM</option><option value=12>PM</option></select>";
	}
	else{
		sHour = "<select id='cal_time_hour' name='cal_time_hour'" +
			" onChange =\"javascript:window.opener.Build(" + 
			"'" + this.gItemId + "', '" + this.gDisplay_ItemId + "', '" + this.gDay + "','" + this.gMonth + "', '" + this.gYear + "', this.value, '" + this.gMinute + "','" + this.gFormat + "','" + this.gTime + "','" + this.gTimeFormat + "','" + this.gCMonth+"','" + this.gCYear + "'" + ")" +"\"" + ">";	
		for (i=0;i<24;i++){
			if (i<10) j = "0" + i;
			else j = i;		
			if (i == vHour)
				sHour = sHour + "<option value=" + i + " selected>" + j + "</option>";
			else
				sHour = sHour + "<option value=" + i + ">" + j + "</option>";
		}	
		sAP = "";
	}
	sHour = sHour + "</select>";
	return sHour + "&nbsp;:&nbsp;"+sMinute+sAP;
}

Calendar.prototype.format_return_dtime = function() {
	var sDtime = "document.getElementById('cal_date').value + ' '";
	 
	if (this.gTimeFormat=='12') {
	  if (this.gHour>=12){
	  	sDtime = sDtime + "+'" + this.gHour  + "'" + " + ':' + document.getElementById('cal_time_minute').value";
		}
	  else if (this.gHour<10)
	    sDtime = sDtime + "+ '0' + document.getElementById('cal_time_hour').value + ':' + document.getElementById('cal_time_minute').value";
	  else sDtime = sDtime + " + document.getElementById('cal_time_hour').value + ':' + document.getElementById('cal_time_minute').value";
	}
	else {
	  if (this.gHour<10)
	    sDtime = sDtime + "+ '0' + document.getElementById('cal_time_hour').value + ':' + document.getElementById('cal_time_minute').value";
	  else sDtime = sDtime + " + document.getElementById('cal_time_hour').value + ':' + document.getElementById('cal_time_minute').value";
	} 
	return sDtime;
}

Calendar.prototype.format_return_display_dtime = function() {
	var sDtime = "document.getElementById('cal_date_display').value + ' '";
	if (this.gHour%12==0&&this.gTimeFormat=='12')
		sDtime = sDtime + "+'12' + ':' + document.getElementById('cal_time_minute').value";
	else if ((this.gHour%12<10&&this.gTimeFormat=='12')||this.gHour<10)
	  sDtime = sDtime + "+ '0' + document.getElementById('cal_time_hour').value + ':' + document.getElementById('cal_time_minute').value";
	else sDtime = sDtime + " + document.getElementById('cal_time_hour').value + ':' + document.getElementById('cal_time_minute').value";
	if (this.gTimeFormat=='12') {
	  if (this.gHour>=12)
	  	sDtime = sDtime +" + ' PM'";
	  else
	    sDtime = sDtime +" + ' AM'";
	}
	return sDtime;
}

Calendar.prototype.write_weekend_string = function(vday) {
	var i;

	// Return special formatting for the weekend day.
	for (i=0; i<weekend.length; i++) {
		if (vday == weekend[i])
			return (" BGCOLOR=\"" + weekendColor + "\"");
	}
	
	return "";
}

Calendar.prototype.format_data = function(p_day) {

	var vData;
	var vMonth = 1 + this.gCMonth;
	vMonth = (vMonth.toString().length < 2) ? "0" + vMonth : vMonth;
	var vMon = Calendar.get_month(this.gCMonth).substr(0,1).toUpperCase()+Calendar.get_month(this.gCMonth).substr(1,2).toLowerCase();
	var vFMon = Calendar.get_month(this.gCMonth).substr(0,1).toUpperCase()+Calendar.get_month(this.gCMonth).substr(1).toLowerCase();
	var vY4 = new String(this.gCYear.toString());
	var vY2 = new String(this.gCYear.toString().substr(2,2));
	//var vY2='04';
	//alert(this.gCYear);
	var vDD = (p_day.toString().length < 2) ? "0" + p_day : p_day;

	switch (this.gFormat) {
		case "mm\/dd\/yyyy" :
			vData = vMonth + "\/" + vDD + "\/" + vY4;
			break;
		case "mm\/dd\/yy" :
			vData = vMonth + "\/" + vDD + "\/" + vY2;
			break;
		case "mm-dd-yyyy" :
			vData = vMonth + "-" + vDD + "-" + vY4;
			break;
		case "mm-dd-yy" :
			vData = vMonth + "-" + vDD + "-" + vY2;
			break;
		case "yy-mm-dd" :
			vData = vY2 + "-" + vMonth + "-" + vDD;
			break;
		case "yyyy-mm-dd" :
			vData = vY4 + "-" + vMonth + "-" + vDD; 
			break;
			
		case "dd\/mon\/yyyy" :
			vData = vDD + "\/" + vMon + "\/" + vY4;
			break;
		case "dd\/mon\/yy" :
			vData = vDD + "\/" + vMon + "\/" + vY2;
			break;
		case "dd-mon-yyyy" :
			vData = vDD + "-" + vMon + "-" + vY4;
			break;
		case "dd-mon-yy" :
			vData = vDD + "-" + vMon + "-" + vY2;
			break;

		case "dd\/month\/yyyy" :
			vData = vDD + "\/" + vFMon + "\/" + vY4;
			break;
		case "dd\/month\/yy" :
			vData = vDD + "\/" + vFMon + "\/" + vY2;
			break;
		case "dd-month-yyyy" :
			vData = vDD + "-" + vFMon + "-" + vY4;
			break;
		case "dd-month-yy" :
			vData = vDD + "-" + vFMon + "-" + vY2;
			break;

		case "dd\/mm\/yyyy" :
			vData = vDD + "\/" + vMonth + "\/" + vY4;
			break;
		case "dd\/mm\/yy" :
			vData = vDD + "\/" + vMonth + "\/" + vY2;
			break;
		case "dd-mm-yyyy" :
			vData = vDD + "-" + vMonth + "-" + vY4;
			break;
		case "dd-mm-yy" :
			vData = vDD + "-" + vMonth + "-" + vY2;
			break;

		default :
			vData = vY4 + "-" + vMonth + "-" + vDD; 
	}

	return vData;
}

Calendar.prototype.format_return_data = function(p_day) {
	var vData;
	var vMonth = 1 + this.gCMonth;
	vMonth = (vMonth.toString().length < 2) ? "0" + vMonth : vMonth;
	var vY4 = new String(this.gCYear.toString());
	var vDD = (p_day.toString().length < 2) ? "0" + p_day : p_day;
	vData = vY4 + "-" + vMonth + "-" + vDD; 
	return vData;
}

function Build(p_itemid, p_display_itemid, p_day, p_month, p_year, p_hour, p_minute, p_format, p_time, p_timeformat,p_cmonth,p_cyear) {
	var p_WinCal = ggWinCal;
	gCal = new Calendar(p_itemid, p_display_itemid, p_WinCal, p_day, p_month, p_year, p_hour, p_minute, p_format, p_time, p_timeformat,p_cmonth,p_cyear);
	gCal.show();
}

function show_calendar() {
	/* 
		p_month : 0-11 for Jan-Dec; 12 for All Months.
		p_year	: 4-digit year
		p_format: Date format (mm/dd/yyyy, dd/mm/yy, ...)
		p_item	: Return Item.
	*/

	var p_itemid = arguments[1];
	var p_display_itemid = "display_"+p_itemid;
	p_datestring = document.getElementById(p_itemid).value;
	p_year = p_datestring.substring(0,4);
	if (isNaN(p_year)||p_year<1900) p_year = gNow.getYear();
	if (parseInt(p_year) <1000) p_year = 1900+parseInt(p_year);
	p_month = p_datestring.substring(5,7);
	if (isNaN(p_month)||p_month>12||p_month==0) p_month = gNow.getMonth();
	else p_month = p_month -1;
	p_day = p_datestring.substring(8,10);
	if (isNaN(p_day)||p_day>31||p_day==0) p_day = gNow.getDate();
	p_hour = p_datestring.substring(11,13);
	if (isNaN(p_hour)||p_hour>23) p_hour = gNow.getHours();
	p_minute = p_datestring.substring(14,16);
	if (isNaN(p_minute)||p_minute>59) p_minute = gNow.getMinutes();

	p_datetime = new Date(p_year,p_month,p_day,p_hour,p_minute,0);
	p_day = new String(p_datetime.getDate().toString());
	 p_month = new String(p_datetime.getMonth().toString());
	p_year = new String(p_datetime.getYear().toString());
	if (parseInt(p_year) <1000) p_year = 1900+parseInt(p_year);
	p_hour = new String(p_datetime.getHours().toString());
	p_minute = new String(p_datetime.getMinutes().toString());
	

	if (arguments[2] == null)
		p_format = "yyyy-mm-dd";
	else
		p_format = arguments[2];

	if (arguments[3] == "12" || arguments[3] == "24"){
		p_time = true;
		p_timeformat=arguments[3];
	}
	else{
		p_time = false;
		p_timeformat="";
	}
	if (p_time){
		vWinCal = window.open("", "Calendar_time", 
			"width=250,height=300,status=no,resizable=no,top=200,left=200");	
	}
	else{
		vWinCal = window.open("", "Calendar", 
			"width=250,height=230,status=no,resizable=no,top=200,left=200");
	}
	vWinCal.opener = self;
	ggWinCal = vWinCal;
	
	if (!p_hour||p_hour==null)
		p_hour="0";
	if (!p_minute||p_minute==null)
		p_minute="0";
	
	Build(p_itemid, p_display_itemid,p_day, p_month, p_year, p_hour, p_minute, p_format, p_time, p_timeformat, p_month,p_year );
}

function clear_vcal_data(id){
  var did = 'display_'+id;
	document.getElementById(id).value='';
	document.getElementById(did).value='';
}


