$guardian->SetDatabase($database);
$guardian->TerminateExpiredSessions();
if (isset($_POST["p_username"]) && isset($_POST["p_password"])) {
    $guardian->SetUsername($_POST["p_username"]);
    $guardian->SetPassword($_POST["p_password"]);
} else {
    if (isset($_COOKIE["cookie_username"]) && isset($_COOKIE["cookie_password"]) && isset($_COOKIE["cookie_userid"])) {
        $guardian->SetId($_COOKIE["cookie_userid"]);
        $guardian->SetUsername($_COOKIE["cookie_username"]);
        $guardian->SetEncryptedPassword($_COOKIE["cookie_password"]);
    } else {
        $guardian->SetUsername("guest");
        $guardian->SetPassword("guest");
    }
}
$guardian->SetModuleName($module_name);
if ($module_name != "error") {
    if (!$guardian->CheckPermission()) {
        echo "<script language='Javascript'>window.location = \"/" . $WEB_SITE . "pages/pgError.php\";</script>";
    } else {
        $session = new Session();
        $session->SetDatabase($database);
        if ($guardian->GetId() != "") {
            $session_id = $session->Login($guardian->GetId(), $guardian->GetUsername(), $guardian->GetEncryptedPassword());
        } else {
            $session_id = $session->Login($guardian->GetId(), $guardian->GetUsername(), $guardian->GetPassword());
        }
        $guardian->SetId($session_id);
        $guardian->SetLoggedIn($session->logged_in);
    }
}