lastScrollY=0; 
	function heartBeat(){ 
		var scrollPos; 
	if (typeof window.pageYOffset != 'undefined') { 
		scrollPos = window.pageYOffset; 
	}else if (typeof document.compatMode != 'undefined' && document.compatMode != 'BackCompat') { 
		scrollPos = document.documentElement.scrollTop; 
	}else if (typeof document.body != 'undefined') { 
		scrollPos = document.body.scrollTop; 
	} 
			
	diffY=scrollPos;
	percent=.1*(diffY-lastScrollY); 
	if(percent>0)percent=Math.ceil(percent); 
	else percent=Math.floor(percent); 
		document.all.backi.style.pixelTop+=percent; 
		lastScrollY=lastScrollY+percent; 
	} 
	window.setInterval("heartBeat()",1); 
			

document.writeln("<DIV id=\"backi\" style=\"Z-INDEX: 99999; RIGHT: 5px; WIDTH: 20px; POSITION: absolute; TOP: 520px;\">");
document.writeln("<table width=\"20\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\" align=\"center\"><tr>");
document.writeln("<td><a href='javascript:window.scrollTo(0,0);'><img src=\"/images/top.gif\" width=\"19\" height=\"12\" alt=\"Top\"></a></td></tr>");
document.writeln("</table></DIV>");