function escape($string, $htmlentities = true) 
	{
		if ( $this->db_connect_id ) 
		{
			if ( $htmlentities ) 
				return htmlentities(mysql_real_escape_string($string, $this->db_connect_id));
			else 
				return mysql_real_escape_string($string, $this->db_connect_id); 
		}
		else
		{
			if ( $htmlentities )
				return htmlentities(mysql_real_escape_string($string));
			else
				return mysql_real_escape_string($string);
		}
	}