Get login bar to show up in a custom page

Question

Hi, I have an external php page where I make use of the QA user info. I started it as suggested here

require_once '/PATH/TO/qa-include/qa-base.php';
require_once QA_INCLUDE_DIR.'qa-app-users.php';

Now I would like to add the logi/nav bar (so the user see if they are logged in, and if not proceed to login). I'd like it to follow the style of the selected theme.

In summary, I'd like to know how could I get the output shown in <div id="qa-login-bar"> could some one point me where to look for it?

Thanks!