$(init);
function init(){
    var speed = 20;
    var tab = document.getElementById("demo");
    var tab1 = document.getElementById("demo1");
    var tab2 = document.getElementById("demo2");
    tab2.innerHTML=tab1.innerHTML;
    tab.innerHTML;
    function Marquee()
    {
        if(tab2.offsetWidth-tab.scrollLeft<=0)
            tab.scrollLeft-=tab1.offsetWidth                                                      
        else
        {                                         
            tab.scrollLeft++;
        }                                                                               
    } 
     var MyMar=setInterval(Marquee,speed);
     tab.onmouseover=function() {clearInterval(MyMar)};
     tab.onmouseout=function() {MyMar=setInterval(Marquee,speed)};
}