Fout met wijzigen

 Notice: Undefined index: id in c:\easyphp1-7\www\auto\wijzig.php on line 10

Notice: Undefined index: id in c:\easyphp1-7\www\auto\wijzig.php on line 10

<?php 
include 'config.php'; 

if ($_SERVER['REQUEST_METHOD'] == 'Submit') 
{ 
    $query = 'UPDATE auto SET merk='.$_POST['merk'].' where id='.$_GET['id'].''; 
    mysql_query($query) || die ('<b>SQL Query Error:</b> ' . mysql_errno () . '<br /><b>Error:</b> ' .mysql_error()); 
      }
  else {
	$select="SELECT * from auto where id='".$_GET['id']."'";
$query=mysql_query($select);

while ($list=mysql_fetch_object($query)) {
?> 
   <FORM NAME="toevoegen" METHOD="post" ACTION="wijzig.php" enctype="multipart/form-data"> 
    <table border="0" width="43%"> 
        <tr> 
            <td width="123">Merk::</td> 
            <td><input type="text" name="merk" size="20" value="<?=$list->merk;?>"></td> 
        </tr> 
        <tr> a
            <td width="123">Type:</td> 
            <td><input type="text" name="type" size="20" value="<?=$list->type;?>"></td> 
        </tr> 
       <tr> 
            <td width="123">Bouwjaar:</td> 
             <td><input type="text" name="bouwjaar" size="20" value="<?=$list->bouwjaar;?>"></td> 
        </tr> 
            <td width="123">Bouwmaand:</td> 
            <td><input type="text" name="bouwmaand" size="20" value="<?=$list->bouwmaand;?>"></td> 
        </tr> 
        </tr> 
        <tr> 
            <td width="123">KM-Stand:</td> 
            <td><input type="text" name="kmstand" size="20" value="<?=$list->kmstand;?>"></td> 
        </tr> 
        <tr> 
            <td width="123">Kleur:</td> 
            <td><input type="text" name="kleur" size="20" value="<?=$list->kleur;?>"></td> 
        </tr> 
            <tr> 
            <td width="123">Brandstof:</td> 
            <td><select name="brandstof"> 
            <option value="Benzine">Benzine</option> 
            <option value="Gas">Gas</option> 
            <option value="Diesel">Diesel</option> 
            </select>    
        </td> 
        </tr> 
        <tr> 
            <td width="123">Aantal-Deurs:</td> 
            <td><input type="text" name="aantaldeurs" size="20" value="<?=$list->aantaldeurs;?>"></td> 
        </tr> 
        <tr> 
            <td width="123">Transmissie:</td> 
            <td><select name="transmissie value="<?=$list->transmissie;?>""> 
            <option value="Handgeschakeld">Handgeschakeld</option> 
            <option value="Automaat">Automaat</option> 
            </select> 
            </td> 
        </tr> 
        <tr> 
            <td width="123">Prijs:</td> 
            <td><input type="text" name="prijs" size="20" value="<?=$list->prijs;?>"></td> 
        </tr> 
        <tr> 
            <td width="123">Extra's:</td> 
            <td><textarea rows="4" name="extra" cols="20" value="<?=$list->extra;?>"></textarea></td> 
        </tr>
        </table>      
    <input type="Submit" value="Submit" name="Submit"> 
    <input type="Reset" value="Reset" name="Reset"> 
      
    </form>  
<?php 
} 
}
?> 

<?php 
include 'config.php'; 
 
if ($_SERVER['REQUEST_METHOD'] == 'Submit') 
{ 
    $query = 'UPDATE auto SET merk='.$_POST['merk'].' where id='.$_GET['id'].''; 
    mysql_query($query) || die ('<b>SQL Query Error:</b> ' . mysql_errno () . '<br /><b>Error:</b> ' .mysql_error()); 
      }
  else {
	$select="SELECT * from auto where id='".$_GET['id']."'";
$query=mysql_query($select);
 
while ($list=mysql_fetch_object($query)) {
?> 
   <FORM NAME="toevoegen" METHOD="post" ACTION="wijzig.php" enctype="multipart/form-data"> 
    <table border="0" width="43%"> 
        <tr> 
            <td width="123">Merk::</td> 
            <td><input type="text" name="merk" size="20" value="<?=$list->merk;?>"></td> 
        </tr> 
        <tr> a
            <td width="123">Type:</td> 
            <td><input type="text" name="type" size="20" value="<?=$list->type;?>"></td> 
        </tr> 
       <tr> 
            <td width="123">Bouwjaar:</td> 
             <td><input type="text" name="bouwjaar" size="20" value="<?=$list->bouwjaar;?>"></td> 
        </tr> 
            <td width="123">Bouwmaand:</td> 
            <td><input type="text" name="bouwmaand" size="20" value="<?=$list->bouwmaand;?>"></td> 
        </tr> 
        </tr> 
        <tr> 
            <td width="123">KM-Stand:</td> 
            <td><input type="text" name="kmstand" size="20" value="<?=$list->kmstand;?>"></td> 
        </tr> 
        <tr> 
            <td width="123">Kleur:</td> 
            <td><input type="text" name="kleur" size="20" value="<?=$list->kleur;?>"></td> 
        </tr> 
            <tr> 
            <td width="123">Brandstof:</td> 
            <td><select name="brandstof"> 
            <option value="Benzine">Benzine</option> 
            <option value="Gas">Gas</option> 
            <option value="Diesel">Diesel</option> 
            </select>    
        </td> 
        </tr> 
        <tr> 
            <td width="123">Aantal-Deurs:</td> 
            <td><input type="text" name="aantaldeurs" size="20" value="<?=$list->aantaldeurs;?>"></td> 
        </tr> 
        <tr> 
            <td width="123">Transmissie:</td> 
            <td><select name="transmissie value="<?=$list->transmissie;?>""> 
            <option value="Handgeschakeld">Handgeschakeld</option> 
            <option value="Automaat">Automaat</option> 
            </select> 
            </td> 
        </tr> 
        <tr> 
            <td width="123">Prijs:</td> 
            <td><input type="text" name="prijs" size="20" value="<?=$list->prijs;?>"></td> 
        </tr> 
        <tr> 
            <td width="123">Extra's:</td> 
            <td><textarea rows="4" name="extra" cols="20" value="<?=$list->extra;?>"></textarea></td> 
        </tr>
        </table>      
    <input type="Submit" value="Submit" name="Submit"> 
    <input type="Reset" value="Reset" name="Reset"> 
 
    </form>  
<?php 
} 
}
?>