toleft("demo","demo1","demo2",30)
	function _(id){
		return document.getElementById(id);
	}
	function toleft(demo,demo1,demo2,speed)
	{
		demo=_(demo);demo1=_(demo1);demo2=_(demo2)
		demo2.innerHTML=demo1.innerHTML

		function Marquee(){
				if(demo2.offsetWidth-demo.scrollLeft <= 0){
				demo.scrollLeft-=demo1.offsetWidth;
			}
				else{
				demo.scrollLeft++
			}
		}
		
		flag=setInterval(Marquee,speed)
		demo.onmouseover=function(){clearInterval(flag);}
		demo.onmouseout=function(){flag=setInterval(Marquee,speed);}
	}