users file logic?

Hi, I have this in my users file: user Auth-Type := Local, User-Password = "pass" Tunnel-Type = 13, Tunnel-Medium-Type = IEEE-802, Tunnel-Private-Group-ID = 4016, Fall-Through = No I would like to assign a different vlan-id if the user doesn't authenticate successfully, i.e. the username is the same but he enters the wrong password. Is this actually possible, as the processing will stop once it matches the first entry for the user "user"? Regards, Maqbool Hashim