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 showRandomImage (stype) 
	{
		var cookieName = "webcasts_Spot";
		nChoice = readCookie(cookieName);
		
		if ( !nChoice ) 
			nChoice = "2";
		
		// now show the image 		
		if ( nChoice == "1" ) 
			nChoice = "2";
		else
			nChoice = "1";
			
		document.write('<img  Src = "Images/spot_' + stype + '_0' + nChoice + '.Jpg" Border = "0">');
	
		// now set the cookie with this value 	
		createCookie(cookieName,nChoice,1);
	}