var scrollInterval;

function iecompattest(){
	return (document.compatMode != "BackCompat") ? document.documentElement : document.body;
}

function scrollwindow(){
	document.all ? currentpos = iecompattest().scrollTop : currentpos = window.pageYOffset;
	currentpos = currentpos - (currentpos / 10);
	if(currentpos <= 0) clearInterval(scrollInterval);
	window.scroll(0,currentpos)
}

function startScroll(){
	document.all ? currentpos = iecompattest().scrollTop : currentpos = window.pageYOffset;
	scrollInterval = setInterval("scrollwindow()", 10)
	return false;
}