Hi Greg,
The easiest way is to simply refresh the "framepage", and set the target to '_top' -
ie the URL on the save button (ie login button) is 'FramePage' and the target is '_top'.
Then in the Framepage procedure make the "starting url" for the right hand frame an expression. In other words, a variable.
An alternative way is to read FAQ #18.
Cheers
Bruce