if (!empty($_REQUEST['writeData'])) {
                if (!empty($_REQUEST['macAddress']) && array_search($_REQUEST['reginfo'],Array('WW'=>'0','NA'=>'1'))!==false && ereg("[0-9a-fA-F]{12,12}",$_REQUEST['macAddress'],$regs)!==false) {
                        exec("wr_mfg_data -m ".$_REQUEST['macAddress']." -c ".$_REQUEST['reginfo'],$dummy,$res);
                        if ($res==0) {
                                conf_set_buffer("system:basicSettings:apName netgear".substr($_REQUEST['macAddress'], -6)."\n");
                                conf_save();
                                $msg = 'Update Success!';
                                $flag = true;
                        }
                 }