[Zope] Calling a method with an unusual name.

[Matt Gregory]

I am forced to name all my zope methods with the extension .dtml because M$
word refuses to save the files in WebDAV unless they have an extension.
This creates a problem when I try to call a python expression from DTML:
<dtml-var "something.dtml"> comes back with "global name something not
found".

How do I call documents with an extension?

example:
<dtml-var "phys_petoverview2.dtml()">