}
Shell shell = PlatformUI.getWorkbench().getActiveWorkbenchWindow().
getActivePage().getActivePart().getSite().getShell();
RepositoryElementPropsDialog diag = new RepositoryElementPropsDialog(shell, node);
diag.open();
}
public void selectionChanged(IAction action, ISelection selection) {
if (selection instanceof IStructuredSelection) {
IStructuredSelection sel = (IStructuredSelection)selection;