var LeftMyMar;
var MyMar;
var speed=30;
function  MarqueeLeft()
{
clearInterval(MyMar)


demo2.innerHTML=demo1.innerHTML
//Ïò×ó×ß
function Marquee(){
if(demo2.offsetWidth-demo.scrollLeft<=0)
demo.scrollLeft-=demo1.offsetWidth
else{
demo.scrollLeft++
}
}
 LeftMyMar=setInterval(Marquee,speed)
}

function MarqueeRight()
{
clearInterval(LeftMyMar)

demo2.innerHTML=demo1.innerHTML

demo.scrollLeft=demo.scrollWidth 
function Marquee(){ 
if(demo.scrollLeft<=0) 
demo.scrollLeft+=demo2.offsetWidth 
else{ 
demo.scrollLeft-- 
} 
} 
 MyMar=setInterval(Marquee,speed)
}
function openDialog(url)
{
 window.open(url,'','width=700,height=880,top=60,left=300,resizable=1,scrollbars=1,status=no,toolbar=no,location=no,menu=no');
}