}
}
};
tab.getSelectionModel().addSelectionListener(owlVizSelectionListener);
treePanel.addSelectionListener(new SelectionListener() {
public void selectionChanged(SelectionEvent event) {
int item = event.getSelectable().getSelection().size() - 1;
if(item > -1) {
Object sel = event.getSelectable().getSelection().toArray()[item];
if(sel instanceof OWLNamedClass) {