/*
JavaScript library of unknown origin.
Modifications made by David Hammond 5/2001

Creates monthly or yearly calendar
*/

var weekend = [0,6];
var weekendColor = "#e0e0e0";
var fontface = "Verdana";
var fontsize = 2;

var gCal;
var gNow = new Date();
var ggWinCal;

var startPrompt = "You are selecting a date range.  First, select the start date.";
var endPrompt = "Now, select the end date.";

// Size and position window in center of screen
var yearlyWidth = Math.min(800,screen.availWidth-50);
var yearlyHeight = Math.min(850,screen.availHeight-50);
var yearlyScreenX = screen.availWidth/2 - yearlyWidth/2;
var yearlyScreenY = screen.availHeight/2 - yearlyHeight/2;
var monthlyWidth = 300;
var monthlyHeight = 285;
var monthlyScreenX = screen.availWidth/2 - monthlyWidth/2;
var monthlyScreenY = screen.availHeight/2 - monthlyHeight/2;

var resourcesDir = "";

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_item2, 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.gBGColor = "white";
	this.gFGColor = "black";
	this.gTextColor = "black";
	this.gHeaderColor = "black";
	this.gReturnItem = p_item;
	this.gReturnItem2 = p_item2;
}

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;
}

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 CELLPADDING=1 CELLSPACING=0 BORDERCOLOR=CFCFCF 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("<style>");
	this.wwrite(".STD {font-family:VERDANA,ARIAL,HELVETICA,SANS-SERIF;font-size: 9pt}");
	this.wwrite(".DING {font-family:WEBDINGS;font-size:16pt;text-decoration:none}");
	this.wwrite("</style>");
	this.wwrite("</head>");

	this.wwrite("<body " + "link=\"" + this.gLinkColor + "\" " + "vlink=\"" + this.gLinkColor + "\" " + "alink=\"" + this.gLinkColor + "\" " + "text=\"" + this.gTextColor + "\">");

	// 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% BORDER=0 BORDERCOLOR=CFCFCF CELLSPACING=0 CELLPADDING=1 BGCOLOR=EFEFEF><TR ALIGN=CENTER>");
	this.wwrite("<TD><A CLASS=DING HREF=\"" + "javascript:window.opener.Build(" + "'" + this.gReturnItem + "','" + this.gReturnItem2 + "', '" + this.gMonth + "', '" + (parseInt(this.gYear)-1) + "', '" + this.gFormat + "'" + ");" + "\">7<\/A></TD>");
	this.wwrite("<TD><A CLASS=DING HREF=\"" + "javascript:window.opener.Build(" + "'" + this.gReturnItem + "','" + this.gReturnItem2 + "', '" + prevMM + "', '" + prevYYYY + "', '" + this.gFormat + "'" + ");" + "\">3<\/A></TD>");
	this.wwrite("<TD CLASS=STD WIDTH=90%><SPAN STYLE=font-size:12pt><B>" + this.gMonthName + "&nbsp;" + this.gYear + "</B></SPAN></TD>");
	this.wwrite("<TD><A CLASS=DING HREF=\"" + "javascript:window.opener.Build(" + "'" + this.gReturnItem + "','" + this.gReturnItem2 + "', '" + nextMM + "', '" + nextYYYY + "', '" + this.gFormat + "'" + ");" + "\">4<\/A></TD>");
	this.wwrite("<TD><A CLASS=DING HREF=\"" + "javascript:window.opener.Build(" + "'" + this.gReturnItem + "','" + this.gReturnItem2 + "', '" + this.gMonth + "', '" + (parseInt(this.gYear)+1) + "', '" + this.gFormat + "'" + ");" + "\">8<\/A></TD></TR></TABLE>");

	// Prompt start or end date
	if (this.gReturnItem2 != null) {
		this.wwrite("<I><SPAN CLASS=STD ID=promptdisplay STYLE=font-size:15px;line-height:20px;color:red;height:40 ALIGN=CENTER>");
		if (datesSelected == 0) this.wwrite(startPrompt);
		else this.wwrite(endPrompt);
		this.wwrite("</SPAN></I>");
	} else {
		this.wwrite("<BR>");
	}

	// Get the complete calendar code for the month..
	vCode = this.getMonthlyCalendarCode();
	this.wwrite(vCode);

	// Link to year view
	this.wwrite("<CENTER><SPAN CLASS=STD STYLE=font-size:8pt>");
	this.wwrite("[<A HREF=\"" + "javascript:window.opener.Build(" + "'" + this.gReturnItem + "','" + this.gReturnItem2 + "', null, '" + this.gYear + "', '" + this.gFormat + "'" + ");" + "\" alt='Prev Year'>Year View<\/A>]");
	this.wwrite("</SPAN></CENTER></body></html>");

	this.gWinCal.document.close();
}

Calendar.prototype.showY = function() {

	this.gWinCal.document.open();

	this.wwrite("<html>");
	this.wwrite("<head><title>Calendar</title>");
	this.wwrite("<style>");
	this.wwrite(".STD {font-family:VERDANA,ARIAL,HELVETICA,SANS-SERIF;font-size: 9pt}");
	this.wwrite(".DING {font-family:WEBDINGS;font-size:16pt;text-decoration:none}");
	this.wwrite("</style>");
	this.wwrite("</head>");

	this.wwrite("<body " + "link=\"" + this.gLinkColor + "\" " + "vlink=\"" + this.gLinkColor + "\" " + "alink=\"" + this.gLinkColor + "\" " + "text=\"" + this.gTextColor + "\">");

	// Show navigation buttons
	var prevYYYY = parseInt(this.gYear) - 1;
	var nextYYYY = parseInt(this.gYear) + 1;

	this.wwrite("<TABLE WIDTH=100% BORDER=0 BORDERCOLOR=CFCFCF CELLSPACING=0 CELLPADDING=1 BGCOLOR=e0e0e0><TR ALIGN=CENTER>");
	this.wwrite("<TD><A CLASS=DING HREF=\"" + "javascript:window.opener.Build(" + "'" + this.gReturnItem + "','" + this.gReturnItem2 + "', null, '" + prevYYYY + "', '" + this.gFormat + "'" + ");" + "\" alt='Prev Year'>7<\/A></TD>");
	this.wwrite("<TD CLASS=STD><SPAN STYLE=font-size:14pt><B>Year : " + this.gYear + "</B></SPAN></TD>");
	this.wwrite("<TD><A CLASS=DING HREF=\"" + "javascript:window.opener.Build(" + "'" + this.gReturnItem + "','" + this.gReturnItem2 + "', null, '" + nextYYYY + "', '" + this.gFormat + "'" + ");" + "\">8<\/A></TD></TR></TABLE>");

	// Prompt start or end date
	if (this.gReturnItem2 != null) {
		this.wwrite("<I><SPAN CLASS=STD ID=promptdisplay STYLE=font-size:15px;line-height:20px;color:red;height:40 ALIGN=CENTER>");
		if (datesSelected == 0) this.wwrite(startPrompt);
		else this.wwrite(endPrompt);
		this.wwrite("</SPAN></I>");
	} else {
		this.wwrite("<BR>");
	}

	this.wwrite("<TABLE WIDTH=100% BORDER=0 CELLSPACING=0 CELLPADDING=10 CLASS=STD>");

	// Get the complete calendar code for each month..
	var j;
	for (var i=0; i<12; i++) {
		// Open row
		if ((i + 1) % 3 == 1) this.wwrite("<TR VALIGN=TOP>");
		this.wwrite("<TD>");

		this.gMonth = i;
		this.gMonthName = Calendar.get_month(this.gMonth);
		var vCode = this.getMonthlyCalendarCode();
		this.wwrite(this.gMonthName + "/" + this.gYear + "<BR>");
		this.wwrite(vCode);
		this.wwrite("<SPAN CLASS=STD STYLE=font-size:8pt>[<A HREF=\"" + "javascript:window.opener.Build(" + "'" + this.gReturnItem + "','" + this.gReturnItem2 + "', " + this.gMonth + ", '" + this.gYear + "', '" + this.gFormat + "'" + ");" + "\" alt='Prev Year'>Month View<\/A>]</SPAN>");

		// Close Row
		this.wwrite("</TD>");
		if ((i + 1) % 3 == 0) this.wwrite("</TR>");

	}

	this.wwrite("</TABLE></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 + "'><B>Sun</B></FONT></TD>";
	vCode = vCode + "<TD WIDTH=14%><FONT SIZE=2 FACE='" + fontface + "' COLOR='" + this.gHeaderColor + "'><B>Mon</B></FONT></TD>";
	vCode = vCode + "<TD WIDTH=14%><FONT SIZE=2 FACE='" + fontface + "' COLOR='" + this.gHeaderColor + "'><B>Tue</B></FONT></TD>";
	vCode = vCode + "<TD WIDTH=14%><FONT SIZE=2 FACE='" + fontface + "' COLOR='" + this.gHeaderColor + "'><B>Wed</B></FONT></TD>";
	vCode = vCode + "<TD WIDTH=14%><FONT SIZE=2 FACE='" + fontface + "' COLOR='" + this.gHeaderColor + "'><B>Thu</B></FONT></TD>";
	vCode = vCode + "<TD WIDTH=14%><FONT SIZE=2 FACE='" + fontface + "' COLOR='" + this.gHeaderColor + "'><B>Fri</B></FONT></TD>";
	vCode = vCode + "<TD WIDTH='16%'><FONT SIZE=2 FACE='" + fontface + "' COLOR='" + this.gHeaderColor + "'><B>Sat</B></FONT></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%" + this.write_weekend_string(i) + "><FONT SIZE=2 FACE='" + fontface + "'>&nbsp;</FONT></TD>";
	}

	// Write rest of the 1st week
	for (j=vFirstDay; j<7; j++) {
		vCode = vCode + "<TD WIDTH=14%" + this.write_weekend_string(j) + "><FONT SIZE=2 FACE='" + fontface + "'>" +
			"<A HREF=\"javascript:window.opener.select_date('" + this.format_data(vDay) + "');\">" + 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++) {
			vCode = vCode + "<TD WIDTH=14%" + this.write_weekend_string(j) + "><FONT SIZE=2 FACE='" + fontface + "'>" +
				"<A HREF=\"javascript:window.opener.select_date('" + this.format_data(vDay) + "');\">" + 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++) {
		if (this.gYearly)
			vCode = vCode + "<TD WIDTH=14%" + this.write_weekend_string(j+m) +
			"><FONT SIZE=2 FACE='" + fontface + "' COLOR='gray'>&nbsp;</FONT></TD>";
		else
			vCode = vCode + "<TD WIDTH=14%" + this.write_weekend_string(j+m) +
			"><FONT SIZE=2 FACE='" + fontface + "' COLOR='gray'>" + m + "</FONT></TD>";
	}

	return vCode;
}

var datesSelected = 0;
function select_date(dateString) {
	if (datesSelected == 0) {
		var formField = eval("document." + gCal.gReturnItem);
	} else {
		var formField = eval("document." + gCal.gReturnItem2);
	}
	formField.value = dateString;
	if (gCal.gReturnItem2 == null || datesSelected > 0) {
		datesSelected = 0;
		ggWinCal.close();
	} else {
		datesSelected ++;
		ggWinCal.promptdisplay.innerHTML = endPrompt;
	}
}

Calendar.prototype.format_day = function(vday) {
	var vNowDay = gNow.getDate();
	var vNowMonth = gNow.getMonth();
	var vNowYear = gNow.getFullYear();

	if (vday == vNowDay && this.gMonth == vNowMonth && this.gYear == vNowYear)
		return ("<FONT COLOR=\"RED\"><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_item2, p_month, p_year, p_format) {

	// Center Window
	if (p_month == null) {
		ggWinCal.resizeTo(yearlyWidth,yearlyHeight);
		ggWinCal.moveTo(screen.availWidth/2 - yearlyWidth/2,screen.availHeight/2 - yearlyHeight/2);
	} else {
		ggWinCal.resizeTo(monthlyWidth,monthlyHeight);
		ggWinCal.moveTo(screen.availWidth/2 - monthlyWidth/2,screen.availHeight/2 - monthlyHeight/2);
	}

	var p_WinCal = ggWinCal;
	if (p_item2 == "null") p_item2 = null;
	gCal = new Calendar(p_item, p_item2, p_WinCal, p_month, p_year, p_format);

	// Customize your Calendar here..
	gCal.gBGColor="white";
	gCal.gLinkColor="black";
	gCal.gTextColor="black";
	gCal.gHeaderColor="3366CC";

	// Choose appropriate show function
	if (gCal.gYearly)	gCal.showY();
	else	gCal.show();
}

function show_calendar() {
	/*
		p_item	: Return Item.
		p_item2	: Return Item for optional second date.
		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_item2 = arguments[1];
	if (arguments[2] == null)
		p_month = new String(gNow.getMonth());
	else
		p_month = arguments[2];
	if (arguments[3] == "" || arguments[3] == null)
		p_year = new String(gNow.getFullYear().toString());
	else
		p_year = arguments[3];
	if (arguments[4] == null)
		p_format = "MM/DD/YYYY";
	else
		p_format = arguments[4];
	if (arguments[5] != null)
		resourcesDir = arguments[5];

	var vWinCal = window.open(resourcesDir + "/blank.html", "CalendarWin", "width=287,height=255,left=" + monthlyScreenX + ",top=" + monthlyScreenY + ",status=no,scrollbars=yes,resizable=1");
	vWinCal.opener = window;
	ggWinCal = vWinCal;
	vWinCal.focus();

	Build(p_item, p_item2, p_month, p_year, p_format);
}
/*
Yearly Calendar Code Starts here
*/
function show_yearly_calendar(p_item, p_item2, p_year, p_format) {
	// Load the defaults..
	if (p_year == null || p_year == "")
		p_year = new String(gNow.getFullYear().toString());
	if (p_format == null || p_format == "")
		p_format = "MM/DD/YYYY";

	var vWinCal = window.open("/includes/blank.html", "CalendarWin", "width=" + yearlyWidth + ",height=" + yearlyHeight + ",left=" + yearlyScreenX + ",top=" + yearlyScreenY + ",status=no,scrollbars=yes,resizable=1");
	vWinCal.focus();
	vWinCal.opener = self;
	ggWinCal = vWinCal;

	Build(p_item, p_item2, null, p_year, p_format);
}