// JavaScript Document
   var speed=20
              document.getElementById("demo2").innerHTML= document.getElementById("demo1").innerHTML
              function Marquee(){
              if( document.getElementById("demo2").offsetWidth- document.getElementById("demo").scrollLeft<=0)
               document.getElementById("demo").scrollLeft-= document.getElementById("demo1").offsetWidth
              else{
               document.getElementById("demo").scrollLeft++
              }
              }
              var MyMar=setInterval(Marquee,speed)
               document.getElementById("demo").onmouseover=function() {clearInterval(MyMar)}
               document.getElementById("demo").onmouseout=function() {MyMar=setInterval(Marquee,speed)}