[Zope] framed menu refresh?!?

Hi all. Ok I have 2 frames in my app. Left frame is my tree'd menu with some status info, too. Right frame is my data input side. User navigates with left frame, and it anchors the appropriate page over in the right frame. Now, here's the problem: if on the right the user selects something that affects the status of the app, how can I refresh the left frame so that it will display the change in status? Thanks for any help!