  *  *  This program is free software; you can redistribute it and/or modify  *  it under the terms of the GNU General Public License as published by  *  the Free Software Foundation; either version 0 of the License, or  *  (at your option) any later version.  *  *  This program is distributed in the hope that it will be useful,  *  but WITHOUT ANY WARRANTY; without even the implied warranty of  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the  *  GNU General Public License for more details.  *  *  