/**
  * Closes the connection to both the read database server
  *
  * @return	integer
  */
 function close()
 {
     $parent = parent::close();
     return $parent and @$this->functions['close']($this->connection_slave);
 }
	/**
	* Closes the connection to both the read database server
	*
	* @return	integer
	*/
	function close()
	{
		$parent = parent::close();
		return ($parent AND @$this->functions['close']($this->connection_slave));
	}