// 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 colour
var todaybg = '#ffff99'; // current selected date background colour
var dayofweek = '#3399cc'; // current selected date background colour
var textclr = '#000000'; // text colour
var linkclr = '#3333ff'; // link text colour
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++] = "00001127 Thanksgiving 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="58" height="40" style="background:' + todaybg + '" align="center"><b>'; 
	  var td_start = '<td width="58" height="40" align="center">'; 
	  // bottom legend
	  var cal = '<div id="cal"><div style="color: #000000; border:2pt solid #cccccc;height:350px;width:420px;background:transparent;"><table border="0" cellspacing="0" cellpadding="2" align="center"><tr><td colspan="7" style="background:' + headbg + '" align="center"><b>' + moy[month]  + ' ' + year + '<\/b><\/td><\/tr><tr style="background:' + dayofweek + '">'; 
	  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; 
		// bottom legend
		var ya = yy +1; cal += '<table border="0" align="center" cellspacing="0" cellpadding="2" width="320"><tr><td><a href="#" onclick="if (cala = dispCal('+yb+','+mm+')) {document.getElementById(\'cal\').innerHTML = cala; return false;}"><< Last Year</a></td><td><a href="#" onclick="if (cala = dispCal('+yyb+','+mmb+')) {document.getElementById(\'cal\').innerHTML = cala; return false;}">< Prev Month</a></td><td align="right"><a href="#" onclick="if (cala = dispCal('+yya+','+mma+')) {document.getElementById(\'cal\').innerHTML = cala; return false;}">Next Month ></a></td><td align="right"><a href="#" onclick="if (cala = dispCal('+ya+','+mm+')) {document.getElementById(\'cal\').innerHTML = cala; return false;}">Next Year >></a></td></tr></table>';} else {cal += '<div> </div>';} cal += '</div>'; return cal;}

// message area
function start() {var x = '<div id="calDate" style="border:2pt solid #999999;width:412px;padding:3pt;"><\/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;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; 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;}