function initEcAd() {
document.all.AdLayer1.style.posTop = -200;
document.all.AdLayer1.style.visibility = 'visible'
document.all.AdLayer2.style.posTop = -200;
document.all.AdLayer2.style.visibility = 'visible'
MoveLeftLayer('AdLayer1');
MoveRightLayer('AdLayer2');
}
function MoveLeftLayer(layerName) {
var x = 5;
var y = 100;// 左侧广告距离页首高度
var diff = (document.body.scrollTop + y - document.all.AdLayer1.style.posTop)*.40;
var y = document.body.scrollTop + y - diff;
eval("document.all." + layerName + ".style.posTop = parseInt(y)");
eval("document.all." + layerName + ".style.posLeft = x");
setTimeout("MoveLeftLayer('AdLayer1');", 20);
}
function MoveRightLayer(layerName) {
var x = 5;
var y = 100;// 右侧广告距离页首高度
var diff = (document.body.scrollTop + y - document.all.AdLayer2.style.posTop)*.40;
var y = document.body.scrollTop + y - diff;
eval("document.all." + layerName + ".style.posTop = y");
eval("document.all." + layerName + ".style.posRight = x");
setTimeout("MoveRightLayer('AdLayer2');", 20);
}

function closed(){
      document.getElementById("AdLayer1").style.display = 'none';
	  document.getElementById("AdLayer2").style.display = 'none';
}

document.write("<div id=AdLayer1 style='position: absolute;visibility:hidden;z-index:1'><a href='#' target='_blank'><img src=images/ad-01.jpg border='0'></a><BR><A href='#' onclick='closed();'>关闭</A></div>"
+"<div id=AdLayer2 style='position: absolute;visibility:hidden;z-index:1'><a href='#' target='_blank'><img src=images/ad-02.jpg border='0'></a><BR><A href='#' onclick='closed();'>关闭</A></div>");
initEcAd()// JavaScript Document