var speed=20;
var ytDemo=document.getElementById('demoleft');
var ytDemo1=document.getElementById('demoleft1');
var ytDemo2=document.getElementById('demoleft2');
ytDemo2.innerHTML=ytDemo1.innerHTML
function MarqueeLeft(){
if(ytDemo2.offsetWidth-ytDemo.scrollLeft<=0)
ytDemo.scrollLeft-=ytDemo1.offsetWidth
else{
ytDemo.scrollLeft++
}
}
var MyMarLeft=setInterval(MarqueeLeft,speed)
ytDemo.onmouseover=function() {clearInterval(MyMarLeft)}
ytDemo.onmouseout=function() {MyMarLeft=setInterval(MarqueeLeft,speed)}