! Copyright (c) 1990-1997  Michael Sandrof, Troy Rollo, Matthew Green,
! and other ircII contributors.
!
! All rights reserved.  See the HELP IRCII COPYRIGHT file for more
! information.
!
Usage: WINDOW NUMBER <n>  
  Changes the REFNUM associated with the current window to <n>,
  possibly causing a swap with the current window, and the current
  window <n>.