[Zope] Source from form result.

Hi, I want to get the HTML result from a form into a dtml method. So I need a way to handle this result, but HOW. The form ist like this: <form action="http://server" method=POST> <input type=hidden name="x" value="a"> <input type=hidden name="y" value="b"> <input type=submit> </form> If I klick on submit, I get the result displayed in the Browser, but I cannot work with it. Perhaps someone could help me??? Thanx a lot ... Marc