Problem Recreating jQuery ColdFusion Ajax Demo

Problem Recreating jQuery ColdFusion Ajax Demo

Hello!  I am new to jQuery and have enjoyed immediate success with some of the basic UI effects.  My current goal is to integrate $.ajax into a small ColdFusion app.  I found the link to the demo (below) in the jQuery Tutorials, but have not been successful in re-creating the demo on my local cf server.

The first thing I noticed is their jquery.js is not the full current version.

Compare: <script language="JavaScript" src="" type="text/javascript"></script>

To: <script language="JavaScript" type="text/JavaScript" src=""></script>

However, the demo fails with either version noted above.

I checked my db connection, and it is working.

Finally, I trimmed out the $.ajax functionality to make sure the $("#idm").change was firing properly, and it is. So, the problem seems to be with the ajax call itself, but I don't know how to debug that piece.