[Zope-dev] deactivating HTTP authentication

On a site I am working on, there is an HTML form for user login. But if the user enters an incorrect login name and password, then Zope responds with an HTTP response that causes the browser to pop up a window asking for auth information. Instead I want to respond with an HTML message and another form (or something). How can i do this? -- Stephan Richter iXL - Software Designer and Engineer CBU - Physics, Computer Science and Chemistry Student