[Zope-dev] Need help getting dtml-in tag info into external function

HI, I'm new to the Zope world and have a question regarding how to pass variables available in the dtml-in tag into an external function. Ideally I want to be able to pass data such as the summary statistics ( i.e. count-nnn, min-nnn, etc ), and item ( i.e. sequence-item, etc ), and batch processing info ( sequence query, etc) into an external function. For example: <dtml-in findUsers size=50 start=query_start> Output: <dtml-var "anExternalFunction( <dtml-var sequence-item> )"> </dtml-in> Although the code above does not seem to work? How can I get at this data? Thanks in advance! Adam