* enabled only if all of the selected resources are projects.

	 * enabled only if one of the selections is a closed project.

		return super.updateSelection(s) && selectionIsOfType(IProject.PROJECT);

		// don't call super since we want to enable if open project is selected.

		if (!selectionIsOfType(IResource.PROJECT))

			return false;

		Iterator resources = getSelectedResources().iterator();

		while (resources.hasNext()) {

			IProject currentResource = (IProject) resources.next();

			if (currentResource.isOpen()) {

				return true;

			}

		}

		return false;