Neodosielanie dat do SQL

<CENTER>
<form method="POST" action="./admin-pisomky-do.php">

<table>
<tr>
    <td id="povinne">Predmet:</td>
    <td><input type="text" name="predmet" value="abc"></input></td>
</tr>
<tr>
    <td>Obsah:</td>
    <td><textarea style="width:600px;height:300px" name="obsah"></textarea></td>
</tr>

<tr>
    <td>Dátum previerky:</td>
    <td><input type="text" name="kedy"></input></td>
</tr>

<tr>
    <td>Dátum pridania:</td>
    <td><input type="text" name="pridane" value="abc"></input></td>
</tr>

<tr>
    <td></td>
    <td><input type="submit" value="Pridať!" name="B1" /></td>
</tr>
</table>
</form>

<?
$DB_SERVER="localhost";
$DB_LOGIN="NOLOGIN";
$DB_PASSWORD="NOPASS";
$DB="NODATABASE";
mysql_connect("$DB_SERVER", "$DB_LOGIN", "$DB_PASSWORD");
mysql_select_db("$DB") or die ("Nemôžem sa spojiť z SQL Serverom! kontaktujte admina");
mysql_query('SET NAMES CP1250');
$obsah = nl2br($obsah);
$upd = mysql_db_query($DB, "INSERT INTO pisomky (predmet, obsah, kedy, pridane) VALUES ('$predmet','$obsah','$kedy','$pridane')");
if (!$upd)
{
echo "<h3>Je to na trt !!! </h3>";
}else{
echo "<h3>Je to OK !</h3>";
}

echo $predmet;
echo $obsah;
echo $kedy;
echo $pridane;

?>