
This code was written in the hope that it might be useful to others as well
as to ourselves, but is not guaranteed in any way.  Anyone is free to copy it
and modify it to suit their own purposes.

We would appreciate comments, bug reports, experiences, and enhancement
requests.

                                DISCLAIMER

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This program was prepared as an account of work sponsored by an
agency of the United States government.  Neither the United States
government nor any agency thereof, nor the University of Chicago,
nor any of their employees or officers, makes any warranty, express
or implied, or assumes any legal liability or responsibility for
the accuracy, completeness, or usefulness of any information,
apparatus, product, or process disclosed, or represents that its
use would not infringe privately owned rights.  Reference herein to
any specific commercial product, process, or service by trade name,
trademark, manufacturer, or otherwise, does not necessarily
constitute or imply its endorsement, recommendation, or favoring by
the united states government or any agency thereof.  The view and
opinions of authors expressed herein do not necessarily state or
reflect those of the United States government or any agency
thereof.

