// JScript 文件

 var speed=20;
var GD=document.getElementById('demo'); 
var GD1=document.getElementById('demo1');
var GD2=document.getElementById('demo2');
GD2.innerHTML=GD1.innerHTML;
function Marquee(){
    if(GD2.offsetWidth-GD.scrollLeft<=0){
        GD.scrollLeft-=GD1.offsetWidth;
    }else{
        GD.scrollLeft++;
    }
}
var MyMar=setInterval(Marquee,speed);
GD.onmouseover=function() {clearInterval(MyMar);}
GD.onmouseout=function() {MyMar=setInterval(Marquee,speed);}