var speed=20;
var tabLeft=document.getElementById("demoLeft");
var tab3=document.getElementById("demo1");
var tab4=document.getElementById("demo2");
tab4.innerHTML=tab3.innerHTML;
function Marquee2(){
	if(tabLeft.scrollLeft>=tab4.offsetWidth)
		tabLeft.scrollLeft-=tab3.offsetWidth
	else{
		tabLeft.scrollLeft++;
	}
}
var MyMar2=setInterval(Marquee2,speed);
tabLeft.onmouseover=function() {clearInterval(MyMar2)};
tabLeft.onmouseout=function() {MyMar2=setInterval(Marquee2,speed)};