function AddGroup()
{
    $group = $_GET["addgroup"];
    $ou = $_GET["ou"];
    if ($ou == null) {
        if ($_SESSION["ou"] != null) {
            $ou = $_SESSION["ou"];
        }
    }
    $ldap = new clladp();
    include_once dirname(__FILE__) . '/ressources/class.groups.inc';
    $groupClass = new groups();
    $list = $groupClass->samba_group_list();
    if (is_array($list)) {
        while (list($num, $ligne) = each($list)) {
            if (trim(strtolower($ligne)) == trim(strtolower($group))) {
                $tpl = new templates();
                echo $tpl->_ENGINE_parse_body('{no_samba_group_in_ou}');
                exit;
            }
        }
    }
    if (!$ldap->AddGroup($group, $ou)) {
        echo $ldap->ldap_last_error;
    }
}