// JavaScript Document

// Event Calendar
// copyright Stephen Chapman, 10th June 2006, 30th October 2006

var tb = 't'; // top or bottom (t or b)
var headbg = '#cccccc';  // table heading background color
var todaybg = '#99cccc'; // current selected date background color
var textclr = '#000000'; // text colour
var linkclr = '#000000'; // link text colour
var linkbg = '#ff9999'; // link background color
var noMessage =  'No events today'; // message to display when no entry in array

var dA = new Array(); 
var x = 0;
// first 8 characters in ccyymmdd format for single date events
// first 8 characters in 0000mmdd format for every year events
dA[x++] = "00000101 New Years Day";
//dA[x++] = "00000121 Semester Begins ";
//dA[x++] = "00000126 Chinese New Year";
//dA[x++] = "00000203 Last Day to Add/Drop";
//dA[x++] = "00000214 Valentine's Day";
//dA[x++] = "00000216 President's Day";
dA[x++] = "00000322 SAC 2010";
dA[x++] = "00000323 SAC 2010";
dA[x++] = "00000324 SAC 2010";
dA[x++] = "00000325 SAC 2010";
dA[x++] = "00000326 SAC 2010";
//dA[x++] = "00000331 Cesar Chavez holiday";
//dA[x++] = "00000406 Spring Break and PCSI 2009";
//dA[x++] = "00000407 Spring Break and PCSI 2009";
//dA[x++] = "00000408 Spring Break and PCSI 2009";
//dA[x++] = "00000409 Spring Break";
//dA[x++] = "00000410 Spring Break";
//dA[x++] = "00000518 CEC 2009";
//dA[x++] = "00000519 CEC 2009";
//dA[x++] = "00000520 CEC 2009";
//dA[x++] = "00000521 CEC 2009";
//dA[x++] = "00000523 Semester Ends";
dA[x++] = "00000701 SEKE 2010";
dA[x++] = "00000702 SEKE 2010";
dA[x++] = "00000703 SEKE 2010";
dA[x++] = "00000704 Independence Day";
//dA[x++] = "00000706 2009 CompX Summer Camp Begins";
//dA[x++] = "00000717 2009 CompX Summer Camp Ends";
dA[x++] = "00000705 IEEE Services 2010";
dA[x++] = "00000706 IEEE Services 2010";
dA[x++] = "00000707 IEEE Services 2010";
dA[x++] = "00000708 IEEE Services 2010";
dA[x++] = "00000709 IEEE Services 2010";
dA[x++] = "00000710 IEEE Services 2010";
//dA[x++] = "00001126 Thanksgiving";
//dA[x++] = "00001225 Christmas Day";
// dA[x++] = "20060610 New Event Calendar Started today";
// permission is granted to use this javascript provided that the below code is not altered
var pageLoaded = 0; 
window.onload = function() {
    pageLoaded = 1;
}

function loaded(i,f) {
    if (document.getElementById && document.getElementById(i) != null) f(); 
    else if (!pageLoaded) 
        setTimeout('loaded(\''+i+'\','+f+')',100);
}

function monthlength(month,year) 
{
    var dd = new Date(year, month, 0);
    return  dd.getDate();
}

var moy = ['January','February','March','April','May','June','July','August','September','October','November','December'];
var today = new Date();
var selDate = today.getFullYear()+getmmdd(today.getMonth()+1,today.getDate());

function dispCal(yy,mm) {
    if (mm < 0 || mm > 12) {
        alert('month must be between 1 and 12'); 
        return false;
    }
    if (yy != 0 && (yy < 1901 || yy > 2100)) {
        alert('year must be after 1900 and before 2101'); 
        return false;
    }

	var dow = ['Sun','Mon','Tue','Wed','Thu','Fri','Sat']; 
	var calendar = new Date();  
	var today = calendar.getDate(); 
	calendar.setDate(1); 
	if (yy > 1900) calendar.setFullYear(yy); 
	if (mm > 0) calendar.setMonth(mm - 1); 
	var yy = year = calendar.getFullYear(); 
	var month = calendar.getMonth(); 
	calendar.setDate(today); 
	var weekday = calendar.getDay(); 
	var daysInMonth = monthlength(month+1,year); 
	var hilite_start = '<td width="30px" style="background:' + todaybg + '" align="center"><b>'; 
	var td_start = '<td width="30" align="center">'; 
	var cal = '<div id="cal"><div style="border:0 solid #cccccc;height:90px;width:140px; font-size: 55%"><table border="0" cellspacing="0" cellpadding="0" align="center"><tr><td colspan="7" style="background:' + headbg + '" align="center"><b>' + moy[month]  + ' ' + year + '<\/b><\/td><\/tr><tr>'; 
	for(dex=0; dex < 7; dex++) {
		cal += td_start + dow[dex] + '</td>';
	} 

	cal += '<\/tr><tr>'; 
	var day2 = today; 
	for (dex = today; dex > 6; dex -=7) day2 = dex; 
	weekday -= day2 - 1; 
	while (weekday < 0) weekday += 7; 
	for (dex=0; dex < weekday; dex++) cal += td_start + ' <\/td>'; 
	for(dex=1; dex <= daysInMonth; dex++) {
		if(weekday == 7) {cal += '</tr><tr>'; 
		weekday = 0;
		}
		if(selDate==year+getmmdd(month+1,dex)) cal += hilite_start +
				'<span'+clickDate(dex,month,year) + '>'+ dex + 
				'<\/span><\/b><\/td>'; else cal += td_start + 
						'<span '+clickDate(dex,month,year) + '>' + dex + 
						'<\/span><\/td>'; 
		weekday += 1;
	}
	
	for(dex=weekday; dex < 7; dex++) cal += td_start + ' <\/td>'; 
	cal += '<\/tr><\/table><\/div>';
	if (document.getElementById) {
		var mmb = month;  
		mm = month + 1; 
		var yya = yyb = yy; 
		if (mmb <1) {
			mmb += 12; 
			yyb--;
		} 
	
		var mma = month + 2; 
		if (mma > 12) {
			mma -= 12; 
			yya++;
	} 
	
	var yb = yy -1; 
	var ya = yy +1; 
	cal += '<br><br><br><br><br><table border="0" cellspacing="0" cellpadding="1" width="140px"><tr><td><a href="#" onclick="if (cala = dispCal('+yb+','+mm+')) {document.getElementById(\'cal\').innerHTML = cala; return false;}"><<</a></td><td><a href="#" onclick="if (cala = dispCal('+yyb+','+mmb+')) {document.getElementById(\'cal\').innerHTML = cala; return false;}"><</a></td><td align="right"><a href="#" onclick="if (cala = dispCal('+yya+','+mma+')) {document.getElementById(\'cal\').innerHTML = cala; return false;}">></a></td><td align="right"><a href="#" onclick="if (cala = dispCal('+ya+','+mm+')) {document.getElementById(\'cal\').innerHTML = cala; document.getElementById(\'calDate\').innerHTML = ct; return false;}">>></a></td></tr></table>';} else {cal += '<div> </div>';} cal += '</div>'; 
	return cal;
}

function start() {
    var x = '<div id="calDate" style="border:1pt solid #cccccc;width:140px"><\/div>'; 
    var y = ''; 
    if (tb == 't') y = x + dispCal(0,0); 
    else y = dispCal(0,0) + x; 
    document.getElementById('calendar').innerHTML = y; ev();
}

loaded('calendar',start);

function clickDate(day, month, year) {
    var ct = nextDate(year + getmmdd(month+1,day));
    if (ct == '') ct = nextDate('0000' + getmmdd(month+1,day));
    if (ct == '') return 'style="color:'+textclr+'"'; 
    else return 'style=cursor:pointer;background:'+linkbg+'  color:'+linkclr+'" onclick="selDate = '+year+ getmmdd(month+1,day)+'; isDate(' + day + ',' + month + ',' + year + ');return false;"';
}

function isDate(dayVal,monthVal,yearVal) {
    var ct = nextDate(yearVal + getmmdd(monthVal+1,dayVal));
    if (ct == '') ct = nextDate('0000' + getmmdd(monthVal+1,dayVal));
    if (ct == '') ct = noMessage;
	//document.getElementById ('calDate').innerHTML = selDate + ':<br \/>' +ct;
    document.getElementById ('calDate').innerHTML = ct; 
    return false;
}

function nextDate(yymmdd) {
    var x = dA.length;
    for (var i = 0; i < x; i++) {
        if (dA[i].substr(0,8) == yymmdd) return dA[i].substr(8);
    }
    return '';
}

function getmmdd(mm,dd) {
    return (mm > 9 ? '' + mm : '0' + mm) + (dd > 9 ? dd : '0' + dd);
}

function ev() {
    //var ct = nextDate(selDate);
    var ct = nextDate(selDate);
    if (ct == '') ct = nextDate('0000' + selDate.substr(4));
    if (ct == '') ct = noMessage; 
    //document.getElementById('calDate').innerHTML = selDate + ':<br \/> ' +ct;
    document.getElementById('calDate').innerHTML = ct;
}