有人能帮我改一下这个网页代码吗？简单的！

我刚才在网上下载了一个 在网页两边漂浮广告的代码，是好用的，可是我不会在这两个的图片广告上加上我自己的连接，有人能帮我一下吗？谢谢了！

<SCRIPT LANGUAGE="JavaScript">
<!--
//more javascript from http://www.smallrain.net
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 = 340;
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");