void label() {
		String strLabel = (String) statement[1].value;
		if (strLabel.equalsIgnoreCase("on")) {
			strLabel = viewer.getStandardLabelFormat();
		}
		else if (strLabel.equalsIgnoreCase("off"))
			strLabel = null;
		viewer.loadShape(JmolConstants.SHAPE_LABELS);
		viewer.setLabel(strLabel);
	}