var scrollTimer;
function scrollAdjust(id)
{
	var obj = document.getElementById(id);
	if(obj.scrollTop == undefined || obj.scrollTop == 0) obj.scrollTop = 1;
	else if(obj.scrollTop < obj.scrollHeight) obj.scrollTop += 3;
	else obj.scrollTop = 1;
}
function scrollSet(id)
{
	scrollTimer = setInterval("scrollAdjust('" + id + "');", 100);
	return true;
}
function scrollCancel()
{
	clearInterval(scrollTimer);
	return true;
}