[Zope] hiding includes from webacces

[Nils Decker]

Hello,

Is there a way to deny direct access to Objects, but allow them to be
included into other documents? I have tried to
setup a role "include" and set my index_html to proxy to this rule, but
it did not work.

i am trying to forbid direct access to includes. E.g:
http://foo/standard_html_header should not be allowed, because
standard_html_header is not a full page, 
but it is included in every page.

Thank you in advance
  Nils Decker