tk events & verifying entrys

[Joshua P. Weage]

	Here is what I'm trying to do.  I have a frame with
Entry widgets, and a menu bar.  I want to verify the values
in the Entries before doing anything on the menu.  I've
tried using FocusOut on the frame, but the menu pops up
before the Entries are verified.  Is there a standard way
to do this?  I'm working in the root window, and I want
the changed values available immediately to the program.

Josh