Dynamische Bilder mit PHP --- Probleme bei Formular in DB schreiben.

<?php
error_reporting(E_ALL);
ini_set("display_errors", true);
echo mysql_error();


$db_host = 'localhost';
$db_user = 'user';
$db_pass = 'pw';
$link = mysql_connect($db_host, $db_user, $db_pass);
mysql_select_db("db");


header ("Content-type: image/png");


$im = imagecreate(620,305);
$background = imageColorAllocate($im, 0,0,0);
$text_color = imagecolorallocate($im, 255, 255, 255);


$sql = "SELECT * FROM walerik ORDER BY nick";
$result = mysql_query($sql);


imagestring($im, 2, 5, 1, 'Spielernamen', $text_color);
imagestring($im, 2, 135, 1, 'LJ', $text_color);
imagestring($im, 2, 190, 1, 'SJ', $text_color);
imagestring($im, 2, 245, 1, 'Xer', $text_color);
imagestring($im, 2, 300, 1, 'SS', $text_color);
imagestring($im, 2, 355, 1, 'Sxer', $text_color);
imagestring($im, 2, 410, 1, 'Zerris', $text_color);
imagestring($im, 2, 465, 1, 'Bomber', $text_color);
imagestring($im, 2, 520, 1, 'Rips', $text_color);
imagestring($im, 2, 570, 1, 'Rec', $text_color);


$i = 4;
while($row = mysql_fetch_array($result))
    {
    $i = $i + 12;
    imagestring($im, 2 , 5, $i, $row['nick'], $text_color);
    imagestring($im, 2 , 135, $i, $row['lj'], $text_color);
    imagestring($im, 2 , 190, $i, $row['sj'], $text_color);
    imagestring($im, 2 , 245, $i, $row['xer'], $text_color);
    imagestring($im, 2 , 300, $i, $row['ss'], $text_color);
    imagestring($im, 2 , 355, $i, $row['sxer'], $text_color);
    imagestring($im, 2 , 410, $i, $row['zerris'], $text_color);
    imagestring($im, 2 , 465, $i, $row['bomber'], $text_color);
    imagestring($im, 2 , 520, $i, $row['rip'], $text_color);
    imagestring($im, 2 , 570, $i, $row['rec'], $text_color);
    }


imagePNG ($im);
imageDestroy($im);
?>

<?php
error_reporting(E_ALL);
ini_set("display_errors", true);
echo mysql_error();


$db_host = 'localhost';
$db_user = 'user';
$db_pass = 'pw';
$link = mysql_connect($db_host, $db_user, $db_pass);
mysql_select_db("db");


$sql = "SELECT * FROM walerik ORDER BY nick";
$result = mysql_query($sql);
?>
<form method="POST" action="<?php $PHP_SELF ?>">
<select>
    <?
    $strSQL = "SELECT * FROM walerik ORDER BY nick";
    $rs = mysql_query($strSQL);
    $nr = mysql_num_rows($rs);
    for ($i=0; $i<$nr; $i++) {
    $r = mysql_fetch_array($rs);
    echo "<OPTION VALUE=\"".$r['nick']."\">".$r['nick']."</OPTION>";
    }
    ?>
</select>
<p>
<input type="hidden" value="submit" name="submit">
<input type="submit" value="LOS" name="B1">
</form>

<?php
error_reporting(E_ALL);
ini_set("display_errors", true);
echo mysql_error();


$db_host = 'localhost';
$db_user = 'user';
$db_pass = 'pw';
$link = mysql_connect($db_host, $db_user, $db_pass);
mysql_select_db("db");


if (isset($send))
    {
    $row=mysql_fetch_object(mysql_query("SELECT * FROM `walerik` LIMIT 1"));
    if(isset($row->nick))
        {
        mysql_query("UPDATE `walerik` SET `lj` = '$lj', `sj` = '$sj',`xer` = '$xer',`ss` = '$ss', `sxer` = '$sxer', `zerris` = '$zerris',`bomber` = '$bomber', `rip` = '$rip', `rec` = '$rec' LIMIT 1");
        }
    }
$row=mysql_fetch_object(mysql_query("SELECT * FROM walerik"));
?>
<form method=post action=''> 
<table border="1" width="100%" id="table1" style="border-collapse: collapse">
    <tr>
        <td width="38%">LJ</td>
        <td width="61%">
        <input type="text" name="lj" size="14" value="<? echo $row->lj; ?>"></td>
    </tr>
    <tr>
        <td width="38%">SJ</td>
        <td width="61%">
        <input type="text" name="sj" size="14" value="<? echo $row->sj; ?>"></td>
    </tr>
    <tr>
        <td width="38%">Xer</td>
        <td width="61%">
        <input type="text" name="xer" size="14" value="<? echo $row->xer; ?>"></td>
    </tr>
    <tr>
        <td width="38%">SS</td>
        <td width="61%">
        <input type="text" name="ss" size="14" value="<? echo $row->ss; ?>"></td>
    </tr>
    <tr>
        <td width="38%">Sxer</td>
        <td width="61%">
        <input type="text" name="sxer" size="14" value="<? echo $row->sxer; ?>"></td>
    </tr>
    <tr>
        <td width="38%">Zerris</td>
        <td width="61%">
        <input type="text" name="zerris" size="14" value="<? echo $row->zerris; ?>"></td>
    </tr>
    <tr>
        <td width="38%">Bomber</td>
        <td width="61%">
        <input type="text" name="bomber" size="14" value="<? echo $row->bomber; ?>"></td>
    </tr>
    <tr>
        <td width="38%">Rips</td>
        <td width="61%">
        <input type="text" name="rip" size="14" value="<? echo $row->rip; ?>"></td>
    </tr>
    <tr>
    <tr>
        <td width="38%">Rec</td>
        <td width="61%">
        <input type="text" name="rec" size="14" value="<? echo $row->rec; ?>"></td>
    </tr>
        <td colspan="2">
<input type="hidden" value="send" name="send">
<input type="submit" value="speichern" name="B1"></td>
    </tr>
</table>
</form>