Hiding domain names on Logon Screen

Hiding domain names on Logon Screen
In a multidomain windows 2000 network,on Logon Screen,user can see all the domains. But I want to hide all other domains, then user can see only one domain. How to hide all other domain on the logon screen through edit the Registry? After this user will see their domain only.

The fast response will be appreciated.

Thanks and Regards

Anil