I'd like to be able to have a simple web page with user authentication. The page would look something like this

But the issue seems that I can't find the way to authenticate my user using HTML (not the popup stuff). It looks like zope authentication system is based on folder. I want my page to be seen by both authenticated/non-authenticated but I'd like to provide a way for them to authenticated and logout. I have my acl_users stuff where should I start looking?