/**
  * end tag handler
  *
  * @param	ressouce	internal xml_parser_handler
  * @param	string		data
  * @access	private
  */
 function handlerCharacterData($a_xml_parser, $a_data)
 {
     parent::handlerCharacterData($a_xml_parser, $a_data);
     // DELETE WHITESPACES AND NEWLINES OF CHARACTER DATA
     $a_data = preg_replace("/\n/", "", $a_data);
     $a_data = preg_replace("/\t+/", "", $a_data);
     if (!empty($a_data)) {
         switch ($this->current_tag) {
             case '':
         }
     }
 }