[Zope] reloading a pop-up box

[Laura McCord]

This is probably outside the scope of this discussion forum but perhaps
someone has some experience with this.
I have a dhtml pop-up box that contains a form that calls a dtml method
that calls a python script. I notice that I can't seem to reload only
the content within the pop-up box. I have been using this <dtml-call
expr="RESPONSE.redirect(URL1 + '/index_html')"> but would rather reload
the box and not the whole page. 

Any ideas?