function auth_service(){
    $soap = createSoap(AUTH_SERVICE_POOL);
    $soap_params = array(
        'SystemID'=>POOL_SYSTEM_ID,
        'Login'=>POOL_LOGIN,
        'Password' =>POOL_PASSWORD
    );
    $res = $soap->UserLogin($soap_params);
    if (!empty($res->UserLoginResult)){
        return $res->UserLoginResult;
    }
    else{
        return false;
    }
}