There are times when you may find it necessary to load a speciality wrapper for a page. If you want a specific category to have its own wrapper, just edit the category to specify the new wrapper where it asks. On other pages, you can modify the url by adding customwrapper=specialwrapper.

Your anchor tag will go from
<a href="index.php?action=userlogin">Login</a>
to
<a href="index.php?action=userlogin&customwrapper=specialwrapper">Login</a>