Jeg har problemer med delete pls. hjælp mig

hejsa
hvad gør jeg galt
der sker ingen ting når jeg bruger delete
jeg bruger følgende kode

<?
                $db=mysql_connect("localhost","xxxxxx","xxxxxxx");
                mysql_select_db("xxxxxxx",$db);
?>
<br>
<br>
<?
    if($slet==1){
        mysql_query("DELETE FROM `gallerier_ikkeaccept` WHERE `nr_1` = '$slet_nr'LIMIT1");
        echo "<center>You have Deleted Gallery Nr&nbsp; ".$slet_nr."<br> <a href=nyegallerier.php>Back</a></center>";
        }
    else{
    echo "<table cellpadding=10 border=0 bgcolor=silver align=center>";



    $foresp = mysql_query("SELECT * FROM `gallerier_ikkeaccept` LIMIT 0, 3000");
    while($data = mysql_fetch_row($foresp)){
        echo "<tr><td align=center>";
        echo $data[0];
        echo "</td><td align=center>";
        echo $data[1];
        echo "</td><td align=center>";
        echo "<a class=link2 target=_blank href=";
        echo $data[2];
        echo ">";
        echo $data[2];
        echo "</a></td><td align=center>";
        echo $data[3];
        echo "</td><td align=center>";
        echo $data[4];
        echo "</td><td align=center>";
        echo $data[5];
        echo "</td><td align=center>";
        echo $data[6];
        echo "</td><td align=center>";
        echo $data[7];
        echo "</td><td align=center>";
        echo $data[8];
        echo "</td></tr>";
       
    }
    echo "</table>";
   
?>
        <center>
        Delete gallery nr.
        <form method=post action="<? echo $PHP_SELF ?>">
                <INPUT TYPE=hidden NAME="slet" VALUE=1>
                <INPUT TYPE="text" NAME="slet_nr">
                <INPUT TYPE="submit" VALUE="DELETE">
        </form>
        </center>
<?
    }
?>
<br>