function delPopulatie($id)
{
    $tobeDeleted = new Populatie($id);
    if ($tobeDeleted->isNew()) {
        return true;
    }
    // item never existed in the first place
    if ($tobeDeleted->del()) {
        return true;
    } else {
        return $tobeDeleted;
    }
}
    $r = array();
    foreach ($_REQUEST as $i => $v) {
        $r[join('.', explode('_', $i))] = $v;
        //convert _ back to .
    }
    $voorbeeld = @$r['0'];
    if (@$r['1'] != '') {
        $uitleg = @$r['1'];
    } else {
        $uitleg = null;
    }
    $populatie = array();
    for ($i0 = 0; isset($r['2.' . $i0]); $i0++) {
        $populatie[$i0] = @$r['2.' . $i0 . ''];
    }
    $Populatie = new Populatie($ID, $voorbeeld, $uitleg, $populatie);
    if ($Populatie->save() !== false) {
        die('ok:' . serviceref($_REQUEST['content']) . '&Populatie=' . urlencode($Populatie->getId()));
    } else {
        die('Please fix errors!');
    }
    exit;
    // do not show the interface
}
$buttons = "";
if (isset($_REQUEST['new'])) {
    $new = true;
} else {
    $new = false;
}
if (isset($_REQUEST['edit']) || $new) {