session_destroy()

[Anon]

I've just spent hours staring at php.net and trying numerous things to get this to work and I can't seem to get it to work.

#1:
A user logs in and a session is created:

session_start();
$uname = $username;
session_register("uname");

$uname does not register for some reason. Any ideas?

#2:
A user logs out and I need the session ID to also be destroyed, but as of now, it just hangs around. When a user hits "Log out", I need that session ID gone so when someone else logs in, they get a new session ID.

Thanks for your help,

Seth