var opacity=100;
var isMSIE = false;
var isFF = false;


function fadeIt( ) {
var elText;
var win = window;
var strID = String();

	strID= "overlay";
	if (document.getElementById) el = window.document.getElementById(strID);
	else if (document.all) el = window.document.all[strID];
	if (el){
		opacity  = opacity-5;;
	 	if ( opacity > 0 ) {
         		if (isMSIE) el.filters.alpha.opacity = opacity;
			else if (isFF) el.style.MozOpacity=opacity/100;
		  	setTimeout('fadeIt()',50);
   		}
	 	else{
 			el = document.getElementById('overlay');
 			el.style.display='none';
   		}
 	}
}
function browserCheck(){

	// convert all characters to lowercase to simplify testing
   	var agt=navigator.userAgent.toLowerCase();
   	var app=navigator.appName.toLowerCase();

   	if (app.indexOf("microsoft")!=-1&&parseInt(navigator.appVersion)>=4) isMSIE = true;
   	if (agt.indexOf('mozilla/5')!=-1) isFF = true;
   	if (agt.indexOf("mac")!=-1) res  = false;
   	if (agt.indexOf("opera") != -1) res = false;
	return( isFF  );
}
function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}
function pageLoaded(){
    	var fadeDone =  readCookie('faded');
  	if (! fadeDone ){
     	 createCookie('faded','1',0 )

		if (browserCheck()) {
			var html = "<div id='overlay' style='position:absolute; top: 0 ;left: 0; z-index:10; width:100%; height:100%; background-color: #BFE2FE; filter: alpha(opacity=100);	-moz-opacity:1; '>";
			html += "<div id='overlayContent' style='position:absolute; top: 50% ;margin-top: -225px; left: 50%; margin-left: -300px; background-image: url(../../style/images/togfest-index.jpg);width:600px; height:450px; background-repeat: no-repeat;   vertical-align : bottom;text-align:center;'>";
		     html += "<div id='text' style='color: #3E4150; font-family:arial;font-weight:bold; margin-top:360px;'> ";
			html += "<div style='font-size: 1.8em;'>The Togfest Music Festival</div>  ";
			html += "<div style='font-size: 1.3em;'>Bradwell Abbey, Milton Keynes</div> ";
			html += "<div style='font-size: 1.3em;'>Friday 26th &amp; Saturday 27th June 2009</div>  ";
		     html += "</div>";
			html += "</div>";
			html += "</div>";
			document.writeln(html);
		     setTimeout('fadeIt()',1000);
		}
	  }
}
if (browserCheck()) {
	 if (isFF) onload=pageLoaded();
	 else onload=pageLoaded;
}