[Zope] Loop over the different levels of PARENTS

[Nico de Boer]

I've tried the default_catalog call, but this refers to default in
CatalogAwareness.py and has the value Catalog.

But I want to give the site owner the opportunity to give the ZCatalog
an id that I look for afterwards. 

Or am I using the self.default_catalog call in the wrong way?

Greetz Nico