I recently had to implement a layout for an application where the menu area and the status area could be hidden or shown with a slide-in / slide-out animation based on whether the user was logged in or not. The following video shows the the layout in action:

[youtube=http://youtu.be/cKXFG4pAoys] Update: a new video shows even better how the panes slide in and out.[youtube=http://youtu.be/qdplhq1KJLs] In the past I probably