id uit de database halen

CREATE TABLE IF NOT EXISTS `beurs` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `fns` varchar(40) NOT NULL,
  `ns` varchar(40) NOT NULL,
  `sns` varchar(50) NOT NULL,
  `gps` varchar(50) NOT NULL,
  `ls` varchar(4) NOT NULL,
  `ts` varchar(20) NOT NULL,
  `nts` varchar(20) NOT NULL,
  `mas` varchar(50) NOT NULL,
  `ms` varchar(6) NOT NULL,
  `sbs` varchar(6) NOT NULL,
  `stb` varchar(5) NOT NULL,
  `oas` varchar(400) NOT NULL,
  `os` varchar(400) NOT NULL,
  `acs` varchar(3) NOT NULL,
  `ocs` varchar(500) NOT NULL,
  `bs` varchar(6) NOT NULL,
  `ds` varchar(10) NOT NULL,
  `sbw` varchar(10) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB  DEFAULT CHARSET=latin1 AUTO_INCREMENT=20160 ;

$fns =    addslashes($_POST['1']);
$ns =    addslashes($_POST['2']);
$sns =    addslashes($_POST['3']);
$gps =    addslashes($_POST['4']);
$ls =    addslashes($_POST['5']);
$ts =    addslashes($_POST['6']);
$nts =    addslashes($_POST['7']);
$mas =    addslashes($_POST['8']);
$ms =    addslashes($_POST['9']);
$os =    addslashes($_POST['10']);
$oas =    addslashes($_POST['11']);
$acs =    addslashes($_POST['12']);
$ocs =    addslashes($_POST['13']);

mysql_query("INSERT INTO beurs (fns, ns, sns, gps, ls, ts, nts, mas, ms, os, oas, acs, ds, sbw, ocs) VALUES ('".$fns."', '".$ns."', '".$sns."',
 '".$gps."', '".$ls."', '".$ts."', '".$nts."',
 '".$mas."', '".$ms."', '".$os."', '".$oas."', '".$acs."', NOW(), '".$sbw."', '".$ocs."')") 
or die (mysql_error());