// Copyright (c) 2005 Claudio Grazioli, http://www.grazioli.ch
//
// This code is free software; you can redistribute it and/or modify it.
// However, this header must remain intact and unchanged.  Additional
// information may be appended after this header.  Publications based on
// this code must also include an appropriate reference.
// 
// This code 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.
//
// 05/17/2005: First update