if (searchFilter.isUseModificationFilter() == false) {
extendedFilter.add(AttributeModifier.append("style", "display: none;"));
}
{
final FieldsetPanel fieldset = gridBuilder.newFieldset(getString("search.periodOfModification"));
fieldset.add(new HiddenInputPanel(fieldset.newChildId(), new HiddenField<Boolean>(InputPanel.WICKET_ID, new PropertyModel<Boolean>(
searchFilter, "useModificationFilter"))).setHtmlId("useModificationFilter"));
startDateTimePanel = new DateTimePanel(fieldset.newChildId(), new PropertyModel<Date>(searchFilter, "startTimeOfModification"),
(DateTimePanelSettings) DateTimePanelSettings.get().withSelectProperty("startDateOfModification").withSelectPeriodMode(true),
DatePrecision.MINUTE);