[pmwiki-users] Text, conditional on authid

[Susan]

Is there a way I can force people to provide a name and a password, 
rather than just a password?

Alternatively, how do I tell if they're logged in without authid?

Reason for question:

(:if !authid:)
[[{$FullName}?action=login|Login]]
(:if authid:)
[[{$FullName}?action=logout|Logout]]

But, if they log in with a password but no id, they see the Login link, 
not the Logout one.

Thanks,

Susan