[Zope] Custom login form in standard Zope ?

Hi! I'm trying to set up a custom login form (as login_form in CMF) trying to avoid the pop-up login window when requesting any non public resource in the Zope site. Can it be done without any extra authentication product? Where is the API, so that I can call an authentication method? Thanks! Gari _________________________________________ Garikoitz Araolaza gari@eibar.org