[Zope] restrict -tree tag global navigation- to subfolders

[Marcus Schopen]

Hi,

I found this to create tree tag global navigation:
http://lists.zope.org/pipermail/zope/1999-February/002164.html

Is it possible (and how) to change the DTML method SideBar to list only
subfolders of the directory where SiteBar itself has been created? Background:

Under the Zope root-folder our homepage has subfolders of different people, eg.
   www.jura.uni-bielefeld.de/web_for_Prof_A
   www.jura.uni-bielefeld.de/web_for_Prof_B
....

Now I would like to have an automatic Navigation like the above global navigation, but
one for each web_for_Prof_X and only with the content of this subfolder.

Thank you for helping
Marcus
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     (0>   Marcus Schopen
     //\   Bielefeld, Germany
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