How to Add a Login Form to the Primary Navigation Menu in Genesis

Someone contacted me to develop a function that would add a login form to the primary navigation for their Genesis menu, and I would like to share it with you.

[php]';
$login .= '';
$login .= '';
$login .= '';
$login .= ' Remember me';
$login .= '';
$menu .= '

';
}
// if logged in, do logout link
else {
global $current_user;
get_currentuserinfo();
$logout = '';
$logout = 'Welcome ' . $current_user->display_name;
$logout .= 'Logout';
$menu .= '

';
}

return $menu;
}
[/php]