Hvor er fejlen

Hej

Har følgende script, men den vil ikke indstætte til/frameldingen, selv om betingelserne er overholdt. Nogen der kan se fejlen???

<script text="text/javascript">
function raidans(elm, ans) {
    elm.form.ans.value = ans;
    elm.form.submit();
}
</script>

<?
if (isset($_POST["raid"])) {
    mysql_query("update heroes_raids_" . $_POST["raids"] . " set (tribe = '$tribe', come = '" . $_POST["ans"] . "', reply = '1') where hid='$heroesid'");
}

$raidsSQL = mysql_query("select * from heroes_raids order by time");

while ($raidsROW = mysql_fetch_array($raidsSQL)) {
    $idInTbl = mysql_query("select * from heroes_raids_" . $raidsROW["id"] . " where hid = '$heroesid'");
    if (mysql_num_rows($idInTbl) == 0)  {
        mysql_query("insert into heroes_raids_" . $raidsROW["id"] . " (reply, come, hid) values ('0', '0', '$heroesid')");
    }

    $raidSQL = mysql_query("select * from heroes_raids_" . $raidsROW["id"] . " where hid='$heroesid' and reply=0");
    if (mysql_num_rows($raidsSQL) == 1) {
        echo "<center><form action=\"" . $_SERVER["PHP_SELF"] . "\" method=\"post\" name=\"form\">";
        echo "<input type=\"hidden\" name=\"raid\" value=\"" . $raidsROW["id"] . "\"><input type=\"hidden\" name=\"ans\">";
        echo "<table><tr><td colspan=\"2\">Det er RAID-tid. " . $raidsROW["time"] . " meld fra nu. Vi regner med dig.</td></tr>";
        echo "<tr><td width=\"50%\"><center><input type=\"button\" onclick=\"raidans(this, '1')\" value=\"kommer\"></center></td>";
        echo "<td width=\"50%\"><center><input type=\"button\" onclick=\"raidans(this, '0')\" value=\"kommer ikke\"></center></td>";
        echo "</tr></table></form></center><br><br>";
    }


}

?>