Tk will clone menu widgets when they are torn off and
it gives them names at are similar to the original
widget's names.  The patch extends the nametowidget so
it will return the original widget when given the name
of a cloned widget.  We used this patch to provide
balloon help in cloned menus.  This patch isn't
perfect, it will fail on clones of clones, but it is a
big help.

This patch was made against the latest CVS version
1.173 of Tkinter.py but works against older
Tkinter.py's too.

     - Greg Couch