AJAX Help

Hi Guys,

I am trying to populate my editor with the content from db via AJAX/XML. I don't really know what to do and how to do it. Please see my code below:

HTML file:

<script type="text/javascript">
var oFCKeditor = new FCKeditor('FCKeditor1');
oFCKeditor.BasePath = "../fckeditor/";
oFCKeditor.Create();
</script>

In my javascript file(onchange event):

var div = document.getElementById("FCKeditor1");
var fck = new FCKeditor("FCKeditor1");
div.innerHTML = "test";

When I run the above, it gives me nothing. I wanted to try to get it to work before I start exporting my AJAX stuff into the editor. But here is the piece of AJAX than I intend to use once it is working:

xmlDoc.getElementsByTagName("description")[index-1].childNodes[0].nodeValue;

Any help would be GREATLY appreciated.

Regards
Shaolin