Hotlinlinking to build backlinks, help to make this script work

I'm trying to install the script listed here:

"How to use hotlinkers and Google Images to build natural links to your site"

The objective is to open a window and display "the code to copy", when hotlinkers right click on a image. This way it is possible to get some back links.

I created a serialized <div> id section: imagelayer0, imagelayer1, imagelayer2:
<div id="imagelayer0" for image 1

<div id="imagelayer1" for image 2

The code below is for image # 1, note that I did not post the code for image 2, 3, 4...

Problem: Does no matter which image is right clicked, script always opens the last image <div> code ...

I'm not experienced with js, and the right click, but looks the right click is related to the last image...

I appreciate any suggestion....


Here is the code

<script type="text/javascript" language="JavaScript"><!--

function RemoveContent0(d) {

document.getElementById(d).style.display = "none";

}

function InsertContent0(d) {

document.getElementById(d).style.display = "";

}


function clickIE40(){
if (event.button==2){
InsertContent0('imagelayer0');
return false;
}
}

function clickNS40(e){
if (document.layers||document.getElementById&&!document.all){
if (e.which==2||e.which==3){
InsertContent0('imagelayer0');
return false;
}
}
}

if (document.layers){
document.captureEvents(Event.MOUSEDOWN);
document.onmousedown=clickNS40;
}
else if (document.all&&!document.getElementById){
document.onmousedown=clickIE40;
}

document.oncontextmenu=new Function("InsertContent0('imagelayer0');return false")

// --> 

</script>



<div id="imagelayer0" style="width:500px;margin-top:10px; border: 1px solid red; display: none;"><a href="javascript:RemoveContent0('imagelayer0')"><img src="http://blg.ataqui.com/images/close.gif" alt="Close" title="Cerrar" align="right" valign="top" border="0"></a>
<div class="bigtxt" style="padding:10px;" align="center" valign="top" width="500"><p align="left"><b>Pega esta imagen en tú pagina, Foro, Myspace o Ebay con este código...</b></p>
<textarea rows="4" cols="50"><a href="http://www.plecnc.com/blog/2007/08/02/el-peor-y-el-mejor-trabajo-del-mundo/"><img src="http://www.plecnc.com/blog/wp-content/uploads/2007/08/un_trabajo_feo.jpg" border="0" alt="El trabajo en el campo"></a></textarea>

</div>
</div>

Code (markup):