Additions:
if(floor(phpversion())<5) include 'JSON.php';
Deletions:
if(floor(phpversion())<5) require_once $DFF_config['dir_include'].'JSON.php';
Additions:
==To Automatically Detect your PHP version 4.x and include JSON.php==
if(floor(phpversion())<5) require_once $DFF_config['dir_include'].'JSON.php';