// JScript 无缝滚动


var speed = 60; 
//滚动对象 
var oMarquee = document.getElementById("zwgg_div");
//内容对象 
var omqdemo = document.getElementById("mqdemo");
var w = oMarquee.offsetHeight;
var odl = omqdemo.offsetHeight;
var x = parseInt(w/odl)+1;
for(var i=0;i<x;i++){
 var o = omqdemo.cloneNode(true);
 oMarquee.appendChild(o);
}
var iScrollAmount = 1
function scroll(){
 oMarquee.scrollTop += iScrollAmount;
 var ol = oMarquee.scrollTop;
 if(odl-ol<=0){
  oMarquee.scrollTop = 0;
 }
}
var MyMar = window.setInterval(scroll,speed);