//
// JavaScript Event Calendar
//
// Version: 1.0
// Date: November 15, 1998
// For information: http://members.aol.com/kevinilsen  or kilsen@m-vation.com
//

// Configurable values are set to defaults here; can override them before calling Calendar( ) from the HTML page
var SpecialDay=5;	// 1=Sunday, 2=Monday, . . . 7=Saturday
var FontSize=5;
var ColorBackground="ffffcc";
var ColorSpecialDay = "red";
var ColorToday = "green";
var ColorEvent = "blue";

var mydate=new Date();


// Initialize the range of the calendar to Jan - Dec of the current year.  Calls to DefineEvent( ) will change this
// as needed; it is also possible to explicitly override the range before calling Calendar( ) from the HTML page.

var today = new Date();
var FirstMonth=GetFullYear(today) * 100 + 1;
var LastMonth=FirstMonth + 11;

// Events[] is a SPARSE array; Call DefineEvent( ) to populate it
var Events = new Array;

// Each event is defined by calling the DefineEvent( ) routine with the following parameters:
//
//   DefineEvent(EventDate, EventDescription, EventLink, Image, Width, Height)
//        EventDate is a numeric value in the format YYYYMMDD
//        EvenDescription is a string that can include embedded HTML tags (e.g., <BR>, <strong>, etc.)
//        EventLink is the URL of the target page if a hyperlink is desired from this event entry
//        Image is the URL of the image if you want to display an image with this event
//        Width is the width of the image in pixels
//        Height is the height of the image in pixels

function DefineEvent(EventDate, EventDescription, EventLink, Image, Width, Height) {
	var tmp;

	// Build the HTML string for this event: image (optional), link (optional), and description
	tmp = "";
	if (Image != "")
		tmp = tmp + '<img src="' + Image + '"  width="' + Width + '" height="' + Height + '" align="left" valign="top">';
	if (EventLink != "")
		tmp = tmp + '<a href="' + EventLink + '">';
	tmp = tmp + EventDescription;
	if (EventLink != "") tmp = tmp + '</a>';

	// If an event already exists for this date, append the new event to it.
	if (Events[EventDate])
		Events[EventDate] += "<BR>" + tmp;
	else
		Events[EventDate] = tmp;

	// Adjust the minimum and maximum month & year to include this date
	tmp = Math.floor(EventDate / 100);
	if (tmp < FirstMonth) FirstMonth = tmp;
	if (tmp > LastMonth) LastMonth = tmp;
}

// Utility function to populate an array with values
function arr() {
	for (var n=0;n<arr.arguments.length;n++) {
		this[n+1] = arr.arguments[n];
	}
}

// Create the array of month names (used in various places)
var months = new arr("January","February","March","April","May","June","July","August","September","October","November","December");
var monthsTr = new arr("Ocak","Şubat","Mart","Nisan","Mayıs","Haziran","Temmuz","Ağustos","Eylül","Ekim","Kasım","Aralık");

// Calendar( ) is the only routine that needs to be called to display the calendar

function Calendar(clMonth,advType,district,advPlaceId) {
    var curdy, curmo, yr, mo, dy, dayofweek, yearmonth, bgn, lastday, jump;
	var weekdays = new arr("Sun","Mon","Tue","Wed","Thu","Fri","Sat");3
	var weekdaysTr = new arr("Paz","Pzt","Sal","Çar","Per","Cum","Cmt");
	var thispage = window.location.pathname;

	// Save current day and month for comparison
	curdy = today.getDate();
	curmo = today.getMonth()+1;

	// Default to current month and year
	mo = curmo;
	yr = GetFullYear(today);
	yearmonth = (yr * 100) + mo;

	// If querystring parameter is present, get the month/year ("calendar.htm?YYYYMM")
		yearmonth = parseInt(clMonth);
		if ((""+yearmonth).length == 6) {
			mo = yearmonth % 100;
			yr = (yearmonth - mo) / 100;
		}
	
	// Constrain to the range of months with events
	/*
	if (yearmonth < FirstMonth) {
		mo = FirstMonth % 100;
		yr = (FirstMonth - mo) / 100;
		yearmonth = FirstMonth;
	}
	if (yearmonth > LastMonth) {
		mo = LastMonth % 100;
		yr = (LastMonth - mo) / 100;
		yearmonth = LastMonth;
	}
    */
	// Create a datae object for the first day of the desired month
	bgn = new Date(months[mo] + " 1," + yr);
	// Get the day-of-week of the first day, and the # days in the month
	dayofweek = bgn.getDay();
	lastday = NumDaysIn(mo,yr);
	document.write("<TABLE style='height:200px' BORDER=2 ><TR><TD ALIGN=CENTER COLSPAN=7><FONT SIZE="+FontSize+"><B>"+monthsTr[mo]+" "+yr+"</B></FONT></TD></TR><TR>");
	for (var i=1;i<=7;i++){
		document.write("<TD ALIGN=CENTER WIDTH=14%><FONT SIZE=1>"+weekdaysTr[i]+"</FONT></TD>");
	}
	document.write("</TR><TR>");
	dy = 1;
	// Special handling for the first week of the month
	for (var i=1;i<=7;i++) {
		// If the day is less than the day of the
		// week determined to be the first day
		// of the month, print a space in
		// this cell of the table.
		if (i <= dayofweek){
			document.write("<TD ALIGN=CENTER>&nbsp;</TD>");
		}
		// Otherwise, write date and the event,
		// if any, in this cell of the table.
		else {
			ShowDate(yr,mo,dy,i,curmo,curdy,district,advType,advPlaceId);
			dy++;
		}
	}
	document.write("</TR><TR>");
	// Rest of the weeks . . .
	while (dy <= lastday) {
		for (var i=1;i<=7;i++) {
			// If the day is greater than the last
			// day of the month, print a space in
			// this cell of the table.
			if (dy > lastday) {
				document.write("<TD ALIGN=CENTER>&nbsp;</TD>");
			}
			// Otherwise, write date and the event,
			// if any, in this cell of the table.
			else {
				ShowDate(yr,mo,dy,i,curmo,curdy,district,advType,advPlaceId);
				dy++;
			}
		}
		document.write("</TR><TR>");
	}

	jump = "";
	if (yearmonth > FirstMonth)
		jump += '<a href="' + thispage + '?'+PrevYearMonth(yearmonth)+'">&lt;-- View '+months[PrevMonth(mo)]+'</a>';
	if ((yearmonth > FirstMonth) && (yearmonth < LastMonth))
		jump += " &nbsp; | &nbsp; ";
	if (yearmonth < LastMonth)
		jump += '<a href="' + thispage + '?'+NextYearMonth(yearmonth)+'">View '+months[NextMonth(mo)]+' --&gt;</a>';
	document.write("</TR></TABLE>");
}

// Display a date in the appropriate color, with events (if there are any)

function ShowDate(yr, mo, dy, dayofweek, currentmonth, currentday,district,advType,advPlaceId) {
	var ind, HighlightEvent, tmp;
    if(parseInt(mo)==parseInt(mydate.getMonth())+1 && parseInt(dy)<parseInt(mydate.getDate()))
    {
        document.write("<TD id=cl_"+advType+"_"+district+"_"+yr+mo+dy+" name=cl_"+yr+mo+dy+" disabled style=\"cursor:pointer;\" bgcolor=#000000 ALIGN=CENTER VALIGN=TOP>");
    }
    else
    {
	document.write("<TD id=cl_"+advType+"_"+district+"_"+yr+mo+dy+" name=cl_"+yr+mo+dy+" onclick=checkDay('"+yr+"','"+mo+"','"+dy+"','"+district+"','"+advType+"','"+advPlaceId+"'); style=\"cursor:pointer\" ALIGN=CENTER VALIGN=TOP>");
	}
	HighlightEvent = true;
	
	ind = (((yr * 100) + mo) * 100) + dy;
	if (Events[ind]) {
		tmp = Events[ind];
	} else tmp="<BR>";
	document.write("<B>"+dy+"</B></ALIGN></TD>");
}


// Remaining routines are utilities used above

function NumDaysIn(mo,yr) {
	if (mo==4 || mo==6 || mo==9 || mo==11) return 30;
	else if ((mo==2) && LeapYear(yr)) return 29;
	else if (mo==2) return 28;
	else return 31;
}

function LeapYear(yr) {
	if (((yr % 4 == 0) && yr % 100 != 0) || yr % 400 == 0) return true;
	else return false;
}

// fixes a Netscape 2 and 3 bug
function GetFullYear(d) { // d is a date object
	var yr;

	yr = d.getYear();
	if (yr < 1000)
	yr +=1900;
	return yr;
}

function PrevMonth(mth) {
	if (mth == 1) return 12;
	else return (mth-1);
}

function NextMonth(mth) {
	if (mth == 12) return 1;
	else return (mth+1);
}

function PrevYearMonth(yrmth) {
	if ((yrmth % 100) == 1) return ((yrmth-100)+11);
	else return (yrmth-1);
}

function NextYearMonth(yrmth) {
	if ((yrmth % 100) == 12) return ((yrmth-11)+100);
	else return (yrmth+1);
}

function JumpTo(calendar, thispage) {
	var sel, yrmo;

	sel = calendar.selectedIndex;
	yrmo = calendar.form.jumpmonth[sel].value;
	document.location = thispage + "?" + yrmo;
}

function BuildSelectionList(current,thispage) {
	var mo, yr, yearmonth;

	yearmonth = FirstMonth;
	document.write("<select name=\"jumpmonth\" size=1 onchange=\"JumpTo(this,'" + thispage + "')\">");
	while (yearmonth <= LastMonth) {
		mo = yearmonth % 100;
		yr = (yearmonth - mo) / 100;
		document.write("<option value=");
		document.write(yearmonth);
		if (yearmonth == current) document.write(" selected");
		document.write(">");
		document.write(months[mo]+" "+yr);
		yearmonth = NextYearMonth(yearmonth);
	}
	document.write("</select>");
}
function checkDay(year,mounth,day,district,advType,advPlaceId)
{
    var calDay;
    calDay= year+mounth+day
    if(document.getElementById('hdnSelectedDay_'+advType+'_'+district).value.indexOf(calDay)<0)
    {
        CheckSelectedDay(year,mounth,day,advPlaceId,'1',district);
        document.getElementById('cl_'+advType+'_'+district+'_'+calDay).style.backgroundColor="#CC0000";
        document.getElementById('hdnSelectedDay_'+advType+'_'+district).value=document.getElementById('hdnSelectedDay_'+advType+'_'+district).value+','+calDay;
    }
    else
    {
        CheckSelectedDay(year,mounth,day,advPlaceId,'0',district);
        document.getElementById('cl_'+advType+'_'+district+'_'+calDay).style.backgroundColor="#FFFFFF";
        document.getElementById('hdnSelectedDay_'+advType+'_'+district).value=document.getElementById('hdnSelectedDay_'+advType+'_'+district).value.replace(','+calDay,'');
    }
 }
function checkedSelectedDay(day,district,advType)
{
    calDay= day;
    document.getElementById('cl_'+advType+'_'+district+'_'+calDay).disabled = true;
    document.getElementById('cl_'+advType+'_'+district+'_'+calDay).style.backgroundColor="#000000";
}
function checkSessionDay(day,district,advType)
{
    var calDay;
    calDay=day;
    document.getElementById('cl_'+advType+'_'+district+'_'+calDay).style.backgroundColor="#CC0000";
    document.getElementById('hdnSelectedDay_'+advType+'_'+district).value=document.getElementById('hdnSelectedDay_'+advType+'_'+district).value+','+calDay;
    if(document.getElementById('tdCredit_'+district).innerHTML!="")
        document.getElementById('tdCredit_'+district).innerHTML = parseInt(document.getElementById('tdCredit_'+district).innerHTML)+parseInt(1);     
    else
        document.getElementById('tdCredit_'+district).innerHTML = 1;
}