require_once 'PaymentExpress/pxaccess.inc.php';
global $pxaccess;
$pxaccess = new PxAccess($dps_url, $dps_user, $dps_key, $mac_key);
require_once 'PaymentExpress/pxaccess.inc.php';
global $pxaccess;
$pxaccess = new PxAccess($dps_url, $dps_user, $dps_key, $mac_key);