$type = @$r['1'];
    $remark = array();
    for ($i0 = 0; isset($r['2.' . $i0]); $i0++) {
        $remark[$i0] = @$r['2.' . $i0 . ''];
    }
    if (@$r['3'] != '') {
        $sentat = @$r['3'];
    } else {
        $sentat = null;
    }
    if (@$r['4'] != '') {
        $receivedat = @$r['4'];
    } else {
        $receivedat = null;
    }
    $Correspondence = new Correspondence($ID, $case, $type, $remark, $sentat, $receivedat);
    if ($Correspondence->save() !== false) {
        die('ok:' . $_SERVER['PHP_SELF'] . '?Correspondence=' . urlencode($Correspondence->getId()));
    } else {
        die('');
    }
    exit;
    // do not show the interface
}
$buttons = "";
if (isset($_REQUEST['new'])) {
    $new = true;
} else {
    $new = false;
}
if (isset($_REQUEST['edit']) || $new) {
function delCorrespondence($id)
{
    $tobeDeleted = new Correspondence($id);
    if ($tobeDeleted->isNew()) {
        return true;
    }
    // item never existed in the first place
    if ($tobeDeleted->del()) {
        return true;
    } else {
        return $tobeDeleted;
    }
}