function create_t_users($nombre)
{
$sql="CREATE TABLE `" .$nombre. "` (
`user_id` int(4) NOT NULL AUTO INCREMENT,
`user_login` varchar(10) NOT NULL,
`user_pwd` varchar(10) NOT NULL,
`user_acc` int(2) NOT NULL,
PRIMARY KEY (`user_id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COMMENT='Tabla de usuarios' AUTO_INCREMENT=5";
echo $sql;
}