<!-- DATE PICKER: -->

var weekend = [0];
var weekendColor = "#D4D5FC";

var gNow = new Date();
var gCurVal = new Date()
var ggWinCal;
var p_css='../style/cal.css';

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_item, p_WinCal, p_month, p_year, p_format) {
	if ((p_month == null) && (p_year == null)) return;
	if (p_WinCal == null) this.gWinCal = ggWinCal; else this.gWinCal = p_WinCal;
	
	if (p_month == null) {
		this.gMonthName = null;
		this.gMonth = null;
		this.gYearly = true;
	} else {
		this.gMonthName = Calendar.get_month(p_month);
		this.gMonth = new Number(p_month);
		this.gYearly = false;
	}

	this.gYear = p_year;
	this.gFormat = p_format;
	this.gReturnItem = p_item;
}

Calendar.get_month = Calendar_get_month;
Calendar.get_daysofmonth = Calendar_get_daysofmonth;
Calendar.calc_month_year = Calendar_calc_month_year;

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;
}

// 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 BORDER=1 CLASS='bgwefgbe'>";
	
	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("<link rel='StyleSheet' href='"+p_css+"' type='text/css'>");
	this.wwrite("</head>");
	this.wwrite("<body>");

	// Show navigation buttons
	var prevMMYYYY = Calendar.calc_month_year(this.gMonth, this.gYear, -1);
	var prevMM = prevMMYYYY[0];
	var prevYYYY = prevMMYYYY[1];

	var nextMMYYYY = Calendar.calc_month_year(this.gMonth, this.gYear, 1);
	var nextMM = nextMMYYYY[0];
	var nextYYYY = nextMMYYYY[1];
	
	this.wwrite("<TABLE WIDTH='100%' HEIGHT='20' CLASS='bgbefgwe' BORDER=1 CELLSPACING=0 CELLPADDING=0>");
	this.wwrite("<TR>");

	this.wwrite("<TD ALIGN=center><A CLASS='lwhite' HREF=\"javascript:window.opener.Build('" + this.gReturnItem + "', '" + this.gMonth + "', '" + (parseInt(this.gYear)-1) + "', '" + this.gFormat + "')\"><FONT CLASS='bgbefgwew'>7</FONT></A></TD>");
	this.wwrite("<TD ALIGN=center><A CLASS='lwhite' HREF=\"javascript:window.opener.Build('" + this.gReturnItem + "', '" + prevMM + "', '" + prevYYYY + "', '" + this.gFormat + "'" + ")\"><FONT CLASS='bgbefgwew'>3</FONT></A></TD>");
	this.wwrite("<TD ALIGN=center><B>" + this.gMonthName + " " + this.gYear + "</B></TD>");
	this.wwrite("<TD ALIGN=center><A CLASS='lwhite' HREF=\"javascript:window.opener.Build('" + this.gReturnItem + "', '" + nextMM + "', '" + nextYYYY + "', '" + this.gFormat + "'" + ")\"><FONT CLASS='bgbefgwew'>4</FONT></A></TD>");
	this.wwrite("<TD ALIGN=center><A CLASS='lwhite' HREF=\"javascript:window.opener.Build('" + this.gReturnItem + "', '" + this.gMonth + "', '" + (parseInt(this.gYear)+1) + "', '" + this.gFormat + "')\"><FONT CLASS='bgbefgwew'>8</FONT></A></TD>");

	this.wwrite("</TR>");
	this.wwrite("</TABLE>");

	// Get the complete calendar code for the month..
	vCode = this.getMonthlyCalendarCode();
	this.wwrite(vCode);

	this.wwrite("</body></html>");
	this.gWinCal.document.close();
}

Calendar.prototype.wwrite = function(wtext) {this.gWinCal.document.writeln(wtext);}

Calendar.prototype.cal_header = function() {
	var vCode = "";
	
	vCode = vCode + "<TR>";
	vCode = vCode + "<TD WIDTH='15%' HEIGHT=20 ALIGN=CENTER><B>Sun</B></TD>";
	vCode = vCode + "<TD WIDTH='14%' ALIGN=CENTER><B>Mon</B></TD>";
	vCode = vCode + "<TD WIDTH='14%' ALIGN=CENTER><B>Tue</B></TD>";
	vCode = vCode + "<TD WIDTH='14%' ALIGN=CENTER><B>Wed</B></TD>";
	vCode = vCode + "<TD WIDTH='14%' ALIGN=CENTER><B>Thu</B></TD>";
	vCode = vCode + "<TD WIDTH='14%' ALIGN=CENTER><B>Fri</B></TD>";
	vCode = vCode + "<TD WIDTH='15%' ALIGN=CENTER><B>Sat</B></TD>";
	vCode = vCode + "</TR>";
	
	return vCode;
}

Calendar.prototype.cal_data = function() {
	var vDate = new Date();
	vDate.setDate(1);
	vDate.setMonth(this.gMonth);
	vDate.setFullYear(this.gYear);

	var vFirstDay=vDate.getDay();
	var vDay=1;
	var vLastDay=Calendar.get_daysofmonth(this.gMonth, this.gYear);
	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%' HEIGHT=20" + this.write_weekend_string(i) + "></TD>";
	}

	// Write rest of the 1st week
	for (j=vFirstDay; j<7; j++) {
		vCode = vCode + "<TD WIDTH='14%' HEIGHT=20" + this.write_weekend_string(j) + "><CENTER><A CLASS='lblue' HREF='#' " + "onClick=\"self.opener.document." + this.gReturnItem + ".value='" + this.format_data(vDay) + "';window.close();\">" + this.format_day(vDay) + "</A></CENTER>" + "</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++) {
			vCode = vCode + "<TD WIDTH='14%' HEIGHT=20" + this.write_weekend_string(j) + "><CENTER><A CLASS='lblue' HREF='#' " + "onClick=\"self.opener.document." + this.gReturnItem + ".value='" + this.format_data(vDay) + "';window.close();\">" + this.format_day(vDay) + "</A></CENTER></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++) {
		if (this.gYearly)
			vCode = vCode + "<TD WIDTH='14%'" + this.write_weekend_string(j+m) + "></TD>";
		else
			vCode = vCode + "<TD WIDTH='14%'" + this.write_weekend_string(j+m) + "></TD>";
	}
	
	return vCode;
}

Calendar.prototype.format_day = function(vday) {
	var vNowDay = gNow.getDate();
	var vNowMonth = gNow.getMonth();
	var vNowYear = gNow.getFullYear();

	var vGivenDay = gCurVal.getDate();
	var vGivenMonth = gCurVal.getMonth();
	var vGivenYear = gCurVal.getFullYear();

	if (vday == vNowDay && this.gMonth == vNowMonth && this.gYear == vNowYear)
		return ("<FONT CLASS='bgnefgrd'><B>" + vday + "</B></FONT>");
	else
 
		if (vday == vGivenDay && this.gMonth == vGivenMonth && this.gYear == vGivenYear)
			return ("<FONT CLASS='bgnefggn'><B>" + vday + "</B></FONT>");
		else
			return (vday);
}

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.gMonth;
	vMonth = (vMonth.toString().length < 2) ? "0" + vMonth : vMonth;
	var vMon = Calendar.get_month(this.gMonth).substr(0,3).toUpperCase();
	var vFMon = Calendar.get_month(this.gMonth).toUpperCase();
	var vY4 = new String(this.gYear);
	var vY2 = new String(this.gYear.substr(2,2));
	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 "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 = vMonth + "/" + vDD + "/" + vY4;
	}

	return vData;
}

function Build(p_item, p_month, p_year, p_format) {
	var p_WinCal = ggWinCal;
	gCal = new Calendar(p_item, p_WinCal, p_month, p_year, p_format);
	gCal.show();
}

function show_calendar() {
	var n;
        var vdd;
	var vmm;
	var vyy;
	/* 
		p_item	: Return Item.
		p_value	: Item Current value
		p_css   : css used
		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 = arguments[0];
	p_value = arguments[1];
	
	if (arguments[2] != "" && arguments[2] != null)
		p_css = arguments[2];

	// create date from given string
	n = p_value.indexOf("/");
	vdd = p_value.substr(0, n);

    p_value = p_value.substr(n+1, p_value.length - n);
	n = p_value.indexOf("/");
	vmm = p_value.substr(0, n)-1;
    vyy = p_value.substr(n+1, p_value.length - n);
    

	if ((p_value == null) || (p_value == "")) {
		if (arguments[3] == null || arguments[3] == "") p_month = new String(gNow.getMonth().toString()); else p_month = arguments[3];
		if (arguments[4] == "" || arguments[4] == null) p_year = new String(gNow.getFullYear().toString()); else p_year = arguments[4];
		if (arguments[5] == null) p_format = "DD/MM/YYYY"; else p_format = arguments[5];
	
	} else {
		p_month = vmm
		p_year = vyy
		p_format = "DD/MM/YYYY";
	}

	vWinCal = window.open("", "Calendar", "width=200,height=190,status=no,resizable=no,top=200,left=200");
	vWinCal.opener = self;
	ggWinCal = vWinCal;


	gCurVal.setMonth("12");
	gCurVal.setDate(vdd);
	gCurVal.setMonth(vmm);
	gCurVal.setFullYear(vyy);

	Build(p_item, p_month, p_year, p_format);
}

