			Library for work with databases
				    V1.6
			Copyright (C) 2004 - 2010 Richter

Introduction:
	This is a class (on PHP) for work with databases.

Main features:
	- supported databases: MySQL

Note: works at 9% more slow direct calling the PHP-functions

Using:
	Copy "lib_db.php" to server and use it like in "using_example.php".

License agreement:
	This software is freeware, delivered on principle "AS IS"
	Copyright - Richter (richter@wpdom.com)
	Additional information: http://wpdom.com

Requirements:
	PHP 5.0+
	Windows or Unix
	Classes Mail_sender, Error_Processor (see http://wpdom.com)

Versions History:
	V1.6	2010-10-03	+ Functions "DB_select_db()" is added.
				+ Function "DB_db_query()" is replaced by "DB_query()".
				! Function "DB_query()" can write query to a log.
	V1.5	2007-03-31	+ Function "DB_list_tables()" is added
	V1.4	2004-07-24	Adapted for class Error_Processor V2.0
	V1.3	2004-04-27	+ Function "DB_connect" now also writes error
	V1.2	2004-04-22	+ Function "DB_affected_rows" is added
	V1.1	2004-04-06	* Function "DB_result" now requires only two parameters
	V1.0	2004-04-01	This is first release