få slettet en post i en tabel når der bliver trykket på en form

Du skal have et inputfelt, som indeholder en unik nøgle til DB'en - f.eks. ID.
Dette inputfelt skal ligge inde i din form.

<form action=slet.php>
<input type=text value=IDvalue>
<input type=submit>
</form>

/J

ok nu er det i et login jeg har lavet hvor jeg gerne vil have det til at ske når brugeren logger af
koden er her

<?php
function connect(){
if (!$db = mysql_connect("local","bruger","kode")) {
    print ("<h1>Kan ikke etablere forbindelse til databasen!</h1>\n");
    return 0;
    }else{
    mysql_select_db("bruger",$db);
    return 1;
    }
    } 
function check_user ($user, $password){
if (connect()){
$password = substr($password, 0, 8);
$sql = "select * from rdnwo_dk.bruger where brugernavn = '$user' and adgang = '$password'";
mysql_query("replace into rdnwo_dk.recentvisit (login) values (\"  $user . \")");
$result = mysql_query($sql);
if (mysql_num_rows($result)== 1){

return 1;
}else{
?>
<h3>beklager du er ikke godkendt!</h3>
<?


return 0;
}
}
}
if(!isset($user) or !check_user($user,$password)){
?>
<table border="0" width="100" height="150" cellspacing="0" frame="box"  style="background:#160D5B;border-left-color:#9C9A06;border-collapse:collapse;">
<thead  style="color:white;background-image:url(billeder/image1.gif);">

&nbsp&nbsp Login
</thead>
<tr>
<td>
<form action=<? echo $PHP_SELF;?> method="post">
&nbsp&nbsp&nbsp <p style="color:white;">Brugernavn:<br><input type="text" name="user" size="10"><br>
Password:<br> <input type="password" name="password" maxlength="15" size="8"><br>
<input type="submit" name="submit" value="Log ind">
</form>
</td>
</tr>
</table>
<?
}else {

?>
<table border="0" width="100" cellspacing="0" frame="box"  style="background:#160D5B;border-left-color:#9C9A06;border-collapse:collapse;">
<tr>
<thead  style="color:white;background-image:url(billeder/image1.gif);">

&nbsp&nbsp Log af</thead>
<td>


<h3 style="color:white;"> Du er logget ind som [R.D:NWO] <?print $user ?></h3>
<form action="http://www.rdnwo.dk" method="post">
<input type="submit" name="log" value="log af"><br>
<a href="php/opret.htm"target="midt">opret bruger</a>
</form>
<?
if($log){
mysql_query("delete from rdnwo_dk.recentvisit where login = '$user'");}; ?>
</td>
</tr>
</table><br>
</center>
<center>
<table border="0" width="100" cellspacing="0" frame="box"  style="background:#160D5B;border-left-color:#9C9A06;border-collapse:collapse;">
<tr>
<thead  style="color:white;background-image:url(billeder/image1.gif);">

&nbsp&nbsp Downloads
</thead>
<td style="color:white;">

<img src="billeder/t.gif" alt=""> &nbsp <a href="map.htm" target="midt">Map</a> <br />
<img src="billeder/t.gif" alt=""> &nbsp <a href="update.htm" target="midt">Update</a><br />
<img src="billeder/t.gif" alt=""> &nbsp <a href="div.htm" target="midt">Diverse</a><br />
<img src="billeder/t.gif" alt=""> &nbsp <a href="logo.htm" target="midt">Logo</a><br />
</td></tr></table></center>
<?
}
?>

jeg kan ikke hjælpe.

/J

ok men tak alligevel