browserType = getBrowserType() ;
	platformType = getPlatform() ;
	
	function getBrowserType() {
		if (navigator.userAgent.indexOf("Opera")!=-1 && document.getElementById) type="Opera";	
		else if (navigator.userAgent.indexOf("Safari")!=-1) type="Safari";	
		else if (navigator.userAgent.indexOf("iCab")!=-1) type="iCab";	
		else if (document.all) type="Internet Explorer";
		else if (document.layers) type="Netscape";	//Netscape Communicator 4
		else if (!document.all && document.getElementById) type="Mozilla"; //Mozila e.g. Netscape 6 upwards
		else type = "??";		//I assume it will not get here
		return type ;
	}
	
	function getPlatform() {
		var browserInfo = navigator.userAgent.toLowerCase() ;
		if (browserInfo.indexOf("win")!=-1) {
			var platform = "Windows" ;
		} else if (browserInfo.indexOf("mac")!=-1) {
			var platform = "Macintosh" ;
		} else {
			var platform = "??" ;
		}
		return platform ;
	}