[Zope] Redirection to a special page based on user ID

[Yury German]

Hello All,

I am looking for some help in something I am trying to do.

What I want is to present someone with a log-on page that will
authenticate them against zope ID's and then redirec them to a page based
on their ID.
So basically something in terms of mr. john smith logs in to page
www.xxxyyy.com/login.html
When the system authenticates the login for jsmith it redirects him to a
directory www.xxxyyy.com/somedir/jsmith/
Does someone know how to do this???? If you have some code and a detailed
explenation it would be wonderful.
Thank you
Yury