//---------ͼƬ¹ö¶¯ 
var demo = document.getElementById("demo");
var demo1 = document.getElementById("demo1");
var demo2 = document.getElementById("demo2");
var speed=1;
demo2.innerHTML=demo1.innerHTML;
function Marquee()
{
    if(demo.scrollLeft>=demo2.offsetWidth) 
    {
        demo.scrollLeft-=demo2.offsetWidth ;
    }else{ 
        demo.scrollLeft++;
    } 
} 
var MyMar=setInterval(Marquee,speed);
demo.onmouseover=function() {clearInterval(MyMar)} 
demo.onmouseout=function() {MyMar=setInterval(Marquee,speed)}