/**
  * Constructor
  * @param boolean   whether to dump to STDOUT or not
  */
 function IsterXmlExpatDumper($dump = true, $options = null)
   {
     parent::IsterXmlExpat($options);
     $this->dump = $dump;
   }
    /**
     * Constructor
     *
     */
    function IsterXmlExpatNonValid($options = null)
      {
        parent::IsterXmlExpat($options);

        $this->doc      = new IsterXmlNode(ISTER_XML_DOCUMENT, 0);
        // level is used only for insertion
        // think about *not* to store level in node
        $this->level    = 1;
        $this->header   = '';
        $this->defbuf   = array();
        $this->dtdbuf   = '';
        $this->defstack = array();
      }