var timeCntrl;

function Scroll(obj) {
	x=obj;
	dataobj=document.getElementById(x);
	if (dataobj.style.top == 0) { dataobj.style.top = "0px"; }
	dataobj.style.top=parseInt(dataobj.style.top)-1+"px";
	thelength = dataobj.offsetHeight;
	if (parseInt(dataobj.style.top) < thelength * (-1)) { dataobj.style.top = "0px"; }
	timeCntrl = setTimeout("Scroll(x)",60);
}

function stopScroll() {
 clearTimeout(timeCntrl);
}