hi again, didn't realize the problem that mydocument is a variable. its early in the morning...;-) try this as a python script where 'mydocument' is the id (as string) of the object to display: return getattr(context,mydocument).document_src() greetings again, maik. -- maik jablonski visit www.zope.org, universitaet bielefeld LET'S GET ZOPED!!!! zentrum fuer lehrerbildung didaktik des sachunterrichts postfach 10 01 31 33501 bielefeld germany tel: + 49 (0) 521 106 4234 http://www.zfl.uni-bielefeld.de/ http://www.sachunterricht-online.de/