Progress Bar PHP/AJAX

[eugeneo]

<script type="text/javascript" src="LoadVars.js"><!--// http://www.devpro.it/javascript_id_92.html //--></script>
<script type="text/javascript" src="BytesUploaded.js"><!--// http://www.devpro.it/javascript_id_96.html //--></script>
<script type="text/javascript">var bUploaded = new BytesUploaded('whileuploading.php');</script>

I'm making this trying to show up on my site so I can get a progress bar of upload progress.

This is the site
http://dl2.wisexchange.com

Thanks