want process to kill itself then restart

From: Brian (brm_at_pobox.com)
Date: 05/23/04 

Date: Sun, 23 May 2004 14:59:44 -0500

I have a perl/tk app that I want to supply a button that will kill the
current process and then restart the application. I was thinking that
I could just fork off a child process at start time and then wait for
the child to finish and then fork off another child. The quesion is
how to go about doing this?

Thanks,
brian