Menu control's Item Click event??

Question

Hi

I have a site with a menu control and a iFrame on it. When the user clicks on one of the menu items a different page loads in the iFrame.

I want to use the "Item Click" event of the Menu control to set a Session state variable so I can see what items was clicked, but it won't work. It's like the event is never executed before the new page is loaded in the iFrame.

How can I get the event to run before the new page is loaded?

Thanks