[Zope] problem testing for a permission

[Jerome Alet]

Hi,

I've created a method whose View permission is not allowed to
Anonymous users but allowed to the "Member" role.

I want to put a link to this method at the bottom of each page, say
in standard_html_footer, but only if the user is allowed to view it.

I've done the following in standard_html_footer:

<dtml-if "AUTHENTICATED_USER.has_permission('View', mymethod)">
  ...
  Some tests and text
  ...
  <A HREF="<dtml-var URL>/mymethod">Members only</A>
  ...
  Some tests and text
  ...
</dtml-if>

but if I access the pages as an anonymous user then I've got
an Unauthorized exception instead of not having the "Members only" link.

What do I have done wrong ?

Thanks in advance.

Jerome Alet