void pushParams(
int pushParams(
  void pushParams(          TransformerImpl transformer, XPathContext xctxt, Node sourceNode, QName mode)            throws TransformerException  {    VariableStack vars = xctxt.getVarStack();    if (null != m_paramElems)      transformer.pushParams(xctxt, this, sourceNode, mode);    else      vars.pushContextMarker();  }