Copyright (c) 2001-2007 by Jaroslaw Malek
All rights reserved.
Author contact: wido@o2.pl, jaroslaw_malek@interia.pl

Trace graph and its documentation can be used for commercial 
and non-commercial purposes provided that the above copyright notice 
and this permission appear in all copies and any materials related 
to Trace graph. Trace graph can be distributed, copied or modified 
without Jaroslaw Malek's permission. All Trace graph source code 
modifications have to be sent to Jaroslaw Malek. Trace graph is 
provided with no warranty. Jaroslaw Malek is not responsible 
for any events and results caused by using Trace graph.