agt=navigator.userAgent.toLowerCase();
IE= ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1))?1:0;
IE_CSS1C=(IE && document.compatMode == "CSS1Compat")?1:0;
IE_notCSS1C=(IE && document.compatMode != "CSS1Compat")?1:0;
scrollTimer=0;
scrollspd=0.6;
function goTop(){
	if(scrollTimer) clearTimeout(scrollTimer);
	thisYold=0;
	goScroll();
}
function goScroll(){
	if(IE_CSS1C){
		thisX=document.documentElement.scrollLeft;
		thisY=Math.ceil(document.documentElement.scrollTop*scrollspd);
	}else if(IE_notCSS1C){
		thisX=document.body.scrollLeft;
		thisY=Math.ceil(document.body.scrollTop*scrollspd);
	}else{
		thisX=pageXOffset;
		thisY=Math.ceil(pageYOffset*scrollspd);
	}
	if(thisY != thisYold){
		scrollTo(thisX,thisY);
		thisYold = thisY;
		scrollTimer=setTimeout("goScroll();",20);
	}else{
		scrollTo(thisX,0);
	}
}