<?php 

	$bild {

	if (isset($_POST['lb_name'])) {

			mysql_query("insert into pa_linkband (lb_name, lb_web) values ('$_POST[lb_name]', '$_POST[lb_web]')");

		}
	}

?>

<?php 

	$label {

	if (isset($_POST['lla_name'])) {

			mysql_query("insert into pa_linklabel (lla_name, llaweb) values ('$_POST[lla_name]', '$_POST[lla_web]')");

		}
	}

?>

<form action="<?php $PHP_SELF; ?>" method="post">
<table><input type="hidden" name="insert" value="Insert"> 
  <tr> 
    <td align="left">Choose your section: </td> 
    <td>
<select name="menu1" onChange="MM_jumpMenu('parent',this,0)">
  <option value="<?php echo("$bild"); ?>">Band</option>
  <option value="<?php echo("$label"); ?>">Label</option>
  <option value="<?php echo("$club"); ?>">Club</option>
  <option value="<?php echo("$misc"); ?>">Misc</option>
</select>
</td> 
  </tr> 
  <tr> 
    <td align="left">Name: </td> 
    <td><textarea name="lb_name" rows="1" cols="20"></textarea></td> 
  </tr> 
    <tr> 
    <td align="left">WebSite
(without "http://" !) </td> 
    <td><textarea name="lb_web" rows="1" cols="20"></textarea></td> 
  </tr> 
  <tr> 
    <td align="center">

<input type="submit" class="normal" alt="Absenden"></td> 
    <td align="center">

<input type="reset" class="normal" alt="Löschen"></td> 
  </tr> 
</table> 
</form>

if($menu1=="bild"){
tu das und das;
}
elseif($menu1=="album"){
dann vielleicht das...;
}
usw.