// JavaScript Document
window.onload = function(){
	rongstr();
		
		}
function rongstr(){
	     var speed3=20//速度数值越大速度越慢
		 var de2=document.getElementById("demo2");
		 var de1=document.getElementById("demo1");
		  var de0=document.getElementById("demo");
        de2.innerHTML=de1.innerHTML
        function Marquee(){
        if(de2.offsetWidth-de0.scrollLeft<=0)
        de0.scrollLeft-=de1.offsetWidth
        else{
        de0.scrollLeft++
        }
        }
        var MyMar=setInterval(Marquee,speed3)
        de0.onmouseover=function() {clearInterval(MyMar)}
        de0.onmouseout=function() {MyMar=setInterval(Marquee,speed3)}
}