// JavaScript Document function MoveCharAd(layerName) { var x = 3;//浮动广告层固定于浏览器的x方向位置 var y = 30;//浮动广告层固定于浏览器的y方向位置 var layer = document.getElementById(layerName) var diff = (document.body.scrollTop + y - layer.style.posTop)*.40; var y = document.body.scrollTop + y - diff; layer.style.posTop = y; layer.style.posLeft = x;//移动广告层 setTimeout("MoveCharAd('ChatAdLayer');", 100);//设置20毫秒后再调用函数MoveLayer() } document.write("
"); document.write("
"); MoveCharAd('ChatAdLayer');