// javascript document

var speed=20;
document.getelementbyid("demo2").innerhtml=document.getelementbyid("demo1").innerhtml
function marquee(){
if(document.getelementbyid("demo2").offsetwidth-document.getelementbyid("demo").scrollleft<=0)
document.getelementbyid("demo").scrollleft-=document.getelementbyid("demo1").offsetwidth
else{
document.getelementbyid("demo").scrollleft++;
}
}
var mymar=setinterval(marquee,speed)
document.getelementbyid("demo").onmouseover=function() {clearinterval(mymar)}
document.getelementbyid("demo").onmouseout=function() {mymar=setinterval(marquee,speed)}