function GetObj(objName){
		if(document.getElementById){
			return eval('document.getElementById("' + objName + '")');
		}else if(document.layers){
			return eval("document.layers['" + objName +"']");
		}else{
			return eval('document.all.' + objName);
		}
	}
	  var speed=5//速度数值越大速度越慢
	  GetObj("demo2").innerHTML=GetObj("demo1").innerHTML

function Marquee(){

		  if(GetObj("demo2").offsetWidth-GetObj("demo").scrollLeft<=0)
		  GetObj("demo").scrollLeft-=GetObj("demo1").offsetWidth
		  else{
			GetObj("demo").scrollLeft++
		  }
	  }
	  var MyMar=setInterval(Marquee,speed)
	  GetObj("demo").onmouseover=function() {clearInterval(MyMar)}
	  GetObj("demo").onmouseout=function() {MyMar=setInterval(Marquee,speed)}