stylesheet.bindings.push(false);
stylesheet.bindings.push(Bindings.PARAM);
  TransformerImpl(TransformerFactoryImpl factory,                  Stylesheet stylesheet,                  Properties outputProperties)    throws TransformerConfigurationException  {    this.factory = factory;    uriResolver = factory.userResolver;    errorListener = factory.userListener;    this.stylesheet = stylesheet;    this.outputProperties = outputProperties;    if (stylesheet != null)      {        // Set up parameter context for this transformer        stylesheet.bindings.push(false);      }  }