var speed=10;
linkmain2.innerHTML=linkmain1.innerHTML;
function Marquee()
{
	if(linkmain2.offsetTop-linkmain.scrollTop<=0)
	{linkmain.scrollTop-=linkmain1.offsetHeight;}
	else{linkmain.scrollTop++;}
}
var MyMar=setInterval(Marquee,speed)
linkmain.onmouseover=function() {clearInterval(MyMar)}
linkmain.onmouseout=function() {MyMar=setInterval(Marquee,speed)}