index.php
<script type="text/javascript" src="jquery-1.4.2.js"></script>
<script type="text/javascript" src="ajax.js"></script>
<a href='/go.html?url=one.php' class='ajax'>One</a>
<a href='/go.html?url=two.php' class='ajax'>Two</a>
<div id="workspace">workspace</div>
<script type="text/javascript" src=
