Im working on a small test game using drupal and facebook.. I have set up my canvas page and created a small theme in drupal that has most of the html elements stripped away.. (so I only see really my content).

I want to add a tabbed menu at the top that has the following:

Invite Friends | Friends of this app |

when clicking on the menu/link it would do a pop over on the page and display either the invite friends dialog box or list of friends dialog box that use this..

I see the blocks that you can enable in your theme, but I was curious how one could make this a link that the user clicks on to display the dialog box.. then when done selecting friends, refresh back to the game.. similar to the way most of the flash games out their invite friends etc...

thoughts?