Multiple Login Pages

I’m trying to create a library-type navigation on my protected site. Right now, I have all my users redirect to one page where they have the ability to select the class they would like to listen to (http://rachaelscentre.com/class-login/classes-library/). I need these selections to also be protected – so that students who have not registered for the Thursday class (for example) cannot access that page.

Any help is appreciated. Thank you