login links for logged in users only
 

I've added a js dropdown login on a client site I'm working on. I'd like the {USERS_LOGIN_BOX} links to control panel etc. to appear only after a user is logged on* but not the login box with textboxes prior to logging in. I've moved that to the dropdown.

Here is what I have in my theme.php file:

Code:
$user = Current_user::getUsername();
if ($user){
Layout::plug('{USERS_LOGIN_BOX}'* 'logged-in');
}else{
Layout::plug(''* 'logged-in');
}
But that doesn't work. Any help? Thanks.