*                phpJobScheduler                        
 *           Author:  DWalker.co.uk                       
 *    phpJobScheduler © Copyright 2003 DWalker.co.uk      
 *              All rights reserved.                      
 *******************************************
 *        Launch Date:  Oct 2003                          
 *     Version    Date              Comment               
 *     1.0       14th Oct 2003      Original release      
 *     3.0       Nov 2005       Released under GPL/GNU    
 *     3.1       June 2006       Fixed modify issues,     
 *                               and other minor issues   
 *     3.3       Dec 2006     removed bugs/improved code  
 *     3.4       Nov 2007     AJAX, and improved script   
 *                       include using CURL and fsockopen 
 *     3.5     Dec 2008    Improvements, including    
 *   single fire, silent db connect, fire time in minutes 
 *     3.6     Oct 2009    Version check added and transparent gif now generated by PHP            
 *     3.61   Nov 2009 Patched to support PHP version 5.3
 *     3.7 Feb 2011 - DEBUG improved to aid install,
                                    and new method added to ensure only one instance of the same script runs at any one time