final GWTJahiaNode parentItem = store.getParent(currentNode);
checkbox.setToolTip(currentNode.getName());
boxes.put(currentNode.getPath(), checkbox);
checkbox.addListener(Events.Change, new Listener<ComponentEvent>() {
public void handleEvent(ComponentEvent event) {
try {
if ((Boolean) ((FieldEvent) event).getValue()) {
selection.add(currentNode);