var speed = 30;
document.getElementById('marquePic2').innerHTML = document.getElementById('marquePic1').innerHTML;

function Marquee(){ 
	if(document.getElementById('product_pic').scrollLeft >= document.getElementById('marquePic1').scrollWidth){ 
		document.getElementById('product_pic').scrollLeft=0;
	}
	else{ 
		document.getElementById('product_pic').scrollLeft++;
	}
} 
var MyMar = setInterval(Marquee,speed);
document.getElementById('product_pic').onmouseover=function() {clearInterval(MyMar);} 
document.getElementById('product_pic').onmouseout=function() {MyMar=setInterval(Marquee,speed);}