var speed=100;
	var Demo=document.getElementById('demo');
	var Demo1=document.getElementById('demo1');
	var Demo2=document.getElementById('demo2');
	Demo2.innerHTML=Demo1.innerHTML
	function Marquee1(){
	if(Demo2.offsetHeight-Demo.scrollTop<=0)
	Demo.scrollTop-=Demo1.offsetHeight
	else{
	Demo.scrollTop++
	}
	}
	var MyMar1=setInterval(Marquee1,speed)
	Demo.onmouseover=function() {clearInterval(MyMar1)}
	Demo.onmouseout=function() {MyMar1=setInterval(Marquee1,speed)}