void setShowLibrariesNode(boolean enabled) {
public void setShowLibrariesNode(boolean enabled) {
	void setShowLibrariesNode(boolean enabled) {		fShowLibrariesNode= enabled;		saveDialogSettings();				fContentProvider.setShowLibrariesNode(enabled);		fViewer.getControl().setRedraw(false);		fViewer.refresh();		fViewer.getControl().setRedraw(true);	}