求网页二边加入可关闭的对联代码,来者有分．．

Question

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 = 165;
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 = y");
eval("document.all." + layerName + ".style.posLeft = x");
setTimeout("MoveLeftLayer('AdLayer1');", 20);
}
function MoveRightLayer(layerName) {
var x = 5;
var y = 165;
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);
}
document.write("<div id=AdLayer1 style='position: absolute;visibility:hidden;z-index:1'><a href='01.jpg' target='_blank'><img  src='01.jpg' quality=high  WIDTH=100 HEIGHT=85 target=_blank id=EccoolAd></a></div>"
+"<div id=AdLayer2 style='position: absolute;visibility:hidden;z-index:1'><a href='02.jpg' target='_blank'><img src='02.jpg' quality=high  WIDTH=100 HEIGHT=85 target=_blank id=EccoolAd></a></div>");
initEcAd()这是我加的不可关闭的代码．．改成可关闭的怎么弄？希望大家在这基础上改，比如在图片下加一个close图片，链接引起图片关闭,一个close图片只关闭与它连在一起的那张图片，而不是二张一起关掉...高人指点下偶这菜鸟吧．．

Answer 1

<div id="AdLayer1" style="position: absolute;visibility:hidden;z-index:1">
   <img src="close.gif" style="cursor:hand" onClick="javascript:closeDiv(document.getElementById('AdLayer1'));"><br>
   <a href="01.jpg" target="_blank">
      <img  src="01.jpg" quality="high"  WIDTH="100" HEIGHT="85" target="_blank" id="EccoolAd">
   </a>
</div><div id="AdLayer2" style="position: absolute;visibility:hidden;z-index:1">
   <img src="close.gif"  style="cursor:hand" onClick="javascript:closeDiv(document.getElementById('AdLayer2'));"><br>
   <a href="02.jpg" target="_blank">
      <img  src="02.jpg" quality="high"  WIDTH="100" HEIGHT="85" target="_blank" id="EccoolAd">
   </a>
</div><script>
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 = 165;
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 = y");
eval("document.all." + layerName + ".style.posLeft = x");
setTimeout("MoveLeftLayer('AdLayer1');", 20);
}
function MoveRightLayer(layerName) {
var x = 5;
var y = 165;
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);
}
initEcAd();
</script>
<script>
function closeDiv(obj){
  obj.style.display="none";
}
</script>

Answer 2

加一个关闭按钮，在这个按钮的onClick事件中调用隐藏这两个图片的javascript代码。
function adClose()
{
   var ad1 = document.getElementById("AdLayer1");
   var ad2 = document.getElementById("AdLayer2");
   ad1.style.visibility="hidden";
   ad2.style.visibility="hidden";
}