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function toleft(n,demo,demo1,demo2){	
  var speed1=n
  document.getelementbyid(demo2).innerhtml=document.getelementbyid(demo1).innerhtml
  function marquee1(){
  if(document.getelementbyid(demo2).offsetwidth-document.getelementbyid(demo).scrollleft<=0)
  document.getelementbyid(demo).scrollleft-=document.getelementbyid(demo1).offsetwidth
  else{
  document.getelementbyid(demo).scrollleft++
  }
  }
  var mymar1=setinterval(marquee1,speed1)
  document.getelementbyid(demo).onmouseover=function () {clearinterval(mymar1)}
  document.getelementbyid(demo).onmouseout=function () {mymar1=setinterval(marquee1,speed1)}
}