<?php 
$start = $_REQUEST['start'];
$db = $GLOBALS['db'];
$type = substr($start,0,2);
$res = $db->fetchByAssoc($db->query("
select code_number from ecmproducts where code like '$start%' 
and deleted='0'
and product_active = '1'
order by code_number desc limit 0,1;		
"));

$number = intval($res['code_number'])+1;

$number = (string) $number;
while (strlen($number) < 5)
	$number = '0'.$number;

echo $type.$number;
return;
?>