protected function logar($user,$pass){
            try{
                $cnn = new models\Connect;
                $stmt = $cnn->pdo->prepare("SELECT ID FROM ta_users WHERE User=:l_u AND Pass=:l_p");
                $param = array(
                    ":l_u" => $user,
                    ":l_p" => $pass,
                );
                $stmt->execute($param);
                if($stmt->rowCount() > 0){
                    return true;
                }else{
                    return false;
                }
            }catch(PDOException $ex){
                return "ERROR 02 : Login.php {$ex->getMessage()}";
            }
        }
        public static function tryLogin(){
            try{
                if(count($_POST) > 0){
                    if(isset($_POST['submited']) and $_POST['submited'] == "true"){
                        if(isset($_POST['login_user']) and $_POST['login_pass']){
                            $login_user = trim(strip_tags($_POST['login_user']));
                            $login_pass = trim(strip_tags($_POST['login_pass']));
                            $try_logar = self::logar($login_user, md5($login_pass));
                            if($try_logar){
                                setcookie('dbd12dcea2f9acc4b9ec58c3207d471f', base64_encode($login_user), time()+3600*24);
                                setcookie('fd018c0295d66d99cc99b29a88b69b2a', base64_encode(md5($login_pass)), time()+3600*24);
                                $arrayReturn = array(
                                    'message' => "logged",
                                );
                                echo json_encode($arrayReturn);
                                exit;
                                die;
                            }else{
                                $arrayReturn = array(
                                    'message' => "failed",
                                    'error' => $try_logar,
                                );
                                echo json_encode($arrayReturn);
                            }
                            exit;
                            die;
                        }else{
                            $arrayReturn = array(
                                "message" => "empty",
                            );
                            echo json_encode($arrayReturn);
                            exit;
                            die;
                        }
                    }
                }
            }catch(PDOException $ex){
                return "ERROR 01 Login.php : {$ex->getMessage()}";
                exit;
                die;
            }
        }