Hen verdi?

Hej, jeg har en side hvor man skal kunne downloade fra, men det virker ikke helt, den opdatere ikke verdien i DownloadCount, hvad er der galt??

$file = mysql_query("SELECT FileName from Downloads where DownloadID = '$download'") or die(mysql_error());

while($row = mysql_fetch_array($file)) {

$filen = $row["FileName"];
}

$result = mysql_query("select * from Downloads order by DownloadCount desc limit 0,1");
$linje = mysql_fetch_array($result);
$idresult = $linje["DownloadID"] + 1;

mysql_query("UPDATE Downloads SET DownloadCount = '$idresult' WHERE DownloadID = '$download'")
or die(mysql_error());

        header("Location: " . $filen);