// JavaScript Document function MoveCharAd(layerName) { 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 = (window.screen.availHeight - 400) / 2;//浮动广告层固定于浏览器的y方向位置 var layer = document.getElementById(layerName) var scrollTop = document.documentElement.scrollTop || document.body.scrollTop; var diff = (scrollTop + y - layer.style.posTop)*.40; //var y = scrollTop + y - diff; var y = scrollTop + y; //layer.style.posTop = y + "px"; layer.style.top = y + "px"; //layer.style.posLeft = document.body.clientWidth - x - 120;//移动广告层 //layer.style.posLeft = x + "px"; //移动广告层 layer.style.left = x + "px"; setTimeout("MoveCharAd('ChatAdLayer');", 100);//设置20毫秒后再调用函数MoveLayer() } document.write("