[Zope] Accessing the calling document's REQUEST?

Hi everybody, Does anyone know if it's possible to access the calling document's REQUEST? I have a dtml-document that calls another dtml-document (in a pop-up javascript window). In this javascript popup I want to refresh the parent window with the parent's original request. Can the javascript-openend dtml-document access the parent's (i.e. calling document's) REQUEST? If so, to refresh the parent window I could easily do the following code in the javascript window: <a href="DisplayStaff<dtml-var QUERY_STRING>">Click here to refresh</a> where the QUERY_STRING would come from the calling document's REQUEST. Is that possible in Zope? Thanks a lot in advance, Philipp