[Zope] preventing direct access to scripts

How can I block direct access to scripts in a certain directory? Users should only be able to use a script 'through' a page template, but not directly. This means the page template should have something like a proxy role. Unfortunately this doesn't seem possible. Probably I'm missing something very basic here, but can somebody enlighten me? Thx! __________________________________________________ Do You Yahoo!? Sign up for SBC Yahoo! Dial - First Month Free http://sbc.yahoo.com