/**
* fetches the proper username markup and title
*
* @param array $user User info array
* @param string $displaygroupfield Name of the field representing displaygroupid in the User info array
* @param string $usernamefield Name of the field representing username in the User info array
* @return string Username with markup and title
*/
public function fetchMusername($user, $displaygroupfield = 'displaygroupid', $usernamefield = 'username')
{
vB_User::fetchMusername($user, $displaygroupfield, $usernamefield);
return $user['musername'];
}