mysql + php vraag

<?
$werknemerqry = mysql_query("SELECT ID, Aid, url, iurl, clicks, impressions, loc, mode, buyaantal FROM ads WHERE mode = '1'");

while($werknemers = mysql_fetch_object($werknemerqry)){ 
}

if(isset($_POST['verzenden'])) 
  { 
    $sID        =    addslashes($_POST['ID']); 
	$sAid      =    addslashes($_POST['Aid']); 
    $surl      =    addslashes($_POST['url']); 
	$siurl        =    addslashes($_POST['iurl']); 
    $iclicks        =    addslashes($_POST['clicks']); 
	$iimpressions        =    addslashes($_POST['impressions']); 
    $iaddate        =    addslashes($_POST['addate']); 
	$iloc       =    addslashes($_POST['loc']);
	$imode       =    addslashes($_POST['mode']);
	$ibuyaantal        =    addslashes($_POST['buyaantal']); 
     
 
    mysql_query("UPDATE ads set (ID, Aid, url, iurl, clicks, impressions, loc, mode, buyaantal) VALUES 
	('".$sID."', '".$sAid."', '".$surl."', '".$siurl."', '".$iclicks."', '".$iimpressions."', '".$iaddate."', '".$iloc."', '".$imode."','".$ibuyaantal."')") 
	or die (mysql_error()); 

    echo 'Je gegevens zijn succesvol in de database geplaatst'; 
  } 
else 
  { 
?> 
<form action="?edit=<?=$pas?>" method="POST">
ID: <input name="ID" type="text" value=""><br /> 
Aid: <input name="Aid" type="text" value=""><br /> 
url: <input type="text" name="iurl" value=""><br /> 
ur bannerl: <input type="text" name="url" value=""><br /> 
clicks: <input type="text" name="clicks" value=""><br /> 
getoond: <input type="text" name="impressions" value=""><br /> 
datum: <input type="text" name="addate" value=" "><br /> 
locatie: <input type="text" name="loc" value=""><br /> 
mode: <input type="text" name="mode" value=""><br /> 
buy aantal: <input type="text" name="buyaantal" value=""><br /> 
<input type="submit" name="verzenden" value="verzenden"> 
</form> 
<? 
  } 
?>