roles and the AJAX tabcontainer

Hi all

Is it possible, to use roles on an AJAX tabcontainer?

I've tried loginView & RoleGroups but no avail.

The scenario is, I have 5 tabs within a tabcontainer. I only wish 2 of the tabs to be accessed by a role and all 5 tabs to be accessed by a powerUser role. I need the tabs to be secure, so it's not as simple as a visible issue and without separating the tabs over 2 separate pages/folders where I can apply 'authorization' within the web.config. I am not sure how I am going to achieve this,

Any assistance will be gratefully received