if(!empty($_SESSION['login']) && !empty($_SESSION['password']) && !empty($_SESSION['access'])) {

    $_SESSION['login'] = mysql_real_escape_string($_SESSION['login']);
    $_SESSION['password'] = mysql_real_escape_string($_SESSION['password']);

    $join = mysql_query("SELECT `login`, `password`, `access` FROM `maxim_db_user` WHERE login='".$_SESSION['login']."' AND password='".$_SESSION['password']."'");

    $db_user = mysql_fetch_array($join);

    if(!($db_user <= 0)) {
        if($db_user['login'] == $_SESSION['login'] and $db_user['password'] == $_SESSION['password'] and $db_user['access'] == $_SESSION['access']) {

            $web_login = $_SESSION['login'];
            $registration = 0;

        } else {

           no_session();

        }
    } else {

        no_session();

    }
}