tabs.getChildren().clear();
List<String> names = getDesktopWorkbenchContext().getWorkbookCtrl().getSheetNames();
for (String name : names) {
final Tab tab = new Tab(name);
tab.addEventListener(org.zkoss.zk.ui.event.Events.ON_RIGHT_CLICK, new EventListener() {
public void onEvent(Event event) throws Exception {
if (tabbox.getSelectedTab().getLabel() != tab.getLabel())
setSelectedTab(tab);
protectSheet.setChecked(getDesktopWorkbenchContext().getWorkbookCtrl().isSheetProtect());