Copyright (c) 1996-1997 by Terry Dawson, Copyright (c) 2001 by Jeff
Tranter. Permission is granted to copy, distribute and/or modify this
document under the terms of the GNU Free Documentation License,
Version 1.1 or any later version published by the Free Software
Foundation; with no Invariant Sections, with no Front-Cover Texts, and
with no Back-Cover Texts. A copy of the license is available at
http://www.gnu.org/copyleft/fdl.html