var position = 0;
		
		function startTrack(){setInterval("toTopFunc()",500)}

		function toTopFunc(){
			if (navigator.appName == "Microsoft Internet Explorer"){ var position = document.body.scrollTop;}
			else {var position = window.pageYOffset;}

			if(position > 20) { 
				$("#toTop").fadeIn(1000);
			}
			if(position < 20) { 
				$("#toTop").fadeOut(1000);
			}
		}