function MarqueeToLeft(){
var speed=30
var demo =document.getElementById("demol");
var demo1 =document.getElementById("demol1");
var demo2 =document.getElementById("demol2");
var MyMarLeft=setInterval(MarqueeLeft,speed)
demo2.innerHTML=demo1.innerHTML
demo.onmouseover=function() {clearInterval(MyMarLeft)}
demo.onmouseout=function() {MyMarLeft=setInterval(MarqueeLeft,speed)}
function MarqueeLeft(){
if(demo2.offsetWidth-demo.scrollLeft<=0)
   demo.scrollLeft-=demo1.offsetWidth
else{
   demo.scrollLeft++
}
}
}
MarqueeToLeft()