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

var tb = 't'; // top or bottom (t or b)
var headbg = '#000044';  // table heading background colour
//var todaybg = '#99cccc'; // current selected date background colour
var todaybg = '#D0C4B6';
var textclr = '#000000'; // text colour
var linkclr = '#ff0000'; // link text colour
var linkbkgd = '#ffffdd'; // link background
var noMessage =  'No event messages to display for 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 Year";
//dA[x++] = "00000214 Valentine's day";
//dA[x++] = "00000709 Steve's Birthday";
//dA[x++] = "00000919 Site Anniversary";
//dA[x++] = "00001206 St Nicholas' 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="30" style="color: #003333; background:' + todaybg + '" align="center" ><b>'; 
	var td_start = '<td width="30" align="center">'; 
	var cal = '<div id="cal"><div style="border:1pt solid #cccccc;height:190px;width:20em;"><table border="0" cellspacing="0" cellpadding="2" align="center"><tr><td colspan="7" style="color: #FFFFFF; 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 += '<table border="0" cellspacing="0" cellpadding="2" style="width:15em;"><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; 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:238px"><\/div>'; 
	var x = '';
	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;color:'+linkclr+'; background-color:'+linkbkgd+';font-weight: bold; font-size:small;" title="'+ct+'" ';
}

//removed from after 'style="
//cursor:pointer;

//removed from after: +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; 
	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;
}