Coded (c) 2002 Vo Khanh Khoa, Home.

  This software is provided 'as-is', without any express or implied warranty.
  In no event will the authors be held liable for any damages arising from the use of this software.

  Permission is granted to anyone to use this software for any purpose, subject to the following restrictions:
   1. The origin of this software must not be misrepresented; you must not claim that you wrote the original
       software. If you use this software in a product, an acknowledgment in the product documentation would
       be appreciated but is not required.
   2. This notice may not be removed or altered from any re-distribution.
