[ Dieter Maurer]

...

All you need is the obvious -

<dtml-if expr="REQUEST.has_key('nol') and nol==id">

Because "id" is sometimes a method and sometimes a string, it is better to use:

<dtml-if expr="REQUEST.has_key('nol') and nol==getId()">

Right, I forgot that again! Let us hope that the poster does not use his own "id" properties but is looking for Zope's! Cheers, Tom P