[jQuery] adding a callback to thickbox

[jQuery] adding a callback to thickbox


Hallo,
is it possible to add a callback to thickbox? I'm loading a form via
ajax and I want to handle this form with ajax again. But I cannot find
a possibility to register a callback function to use the form plugin.
There should be a way like
<a href="ajaxPage.php?
height=300&width=400&callback=handleForm">thickboxLink</a>
Is there a way to do it?
Mathias