[Zope] Problems with Object-IDs

Hi Community, I've got a problem with finding out IDs of objects. What I want to do is this: I want to search in a directory, if a special object-id is already used. The code is: <dtml-in "objectItems(['DTML Document'])"> <dtml-if "id=='mydocument.html' "> and so on But the id I get here, is not the id as it is shown in the management-view (for example 'mydocument.html'). Here, the id is something like 'Python Method object at 0x841d1c8' Can anyone tell me, how I can get the 'real' id 'mydocument.html'? Thank for your help in advance. Marc