php zoek script

<?php
if (empty($_GET['post'])) {
?>
<form method="POST" action="cheat.php">
  <table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse" bordercolor="#111111" width="100%" id="AutoNumber1">
    <tr>
    <td width="6%" class="tekst">Search:</td>
    <td width="94%">
       <select name="con" class="option" size="1">
       <option selected value="false">Kies een console</option>
       <option value="xbox">Xbox</option>
       <option value="xbox360">Xbox 360</option>
       <option value="play2">Playstation 2</option>
       <option value="play3">Playstation 3</option>
       <option value="psp">Psp</option>
       <option value="wii">Wii</option>
       <option value="gamec">Gamecube</option>
       <option value="pc">Pc</option>
       </select>
       <select name="let" class="option" size="1">
       <option selected value="false">Kies een letter</option>
       <option value="a">A</option>
       <option value="b">B</option>
       <option value="c">C</option>
       <option value="d">D</option>
       <option value="e">E</option>
       <option value="f">F</option>
       <option value="g">G</option>
       <option value="h">H</option>
       <option value="i">I</option>
       <option value="j">J</option>
       <option value="k">K</option>
       <option value="l">L</option>
       <option value="m">M</option>
       <option value="n">N</option>
       <option value="o">O</option>
       <option value="p">P</option>
       <option value="q">Q</option>
       <option value="r">R</option>
       <option value="s">S</option>
       <option value="t">T</option>
       <option value="u">U</option>
       <option value="v">V</option>
       <option value="w">W</option>
       <option value="x">X</option>
       <option value="y">Y</option>
       <option value="z">Z</option>
       
       </select> 
         </td>
    </tr>
    </table>
    </form>
    <?php
}else{
$con=$_POST['con'];
$let=$_POST['let'];
}
?>
<a href="cheats/<?php echo $con; ?>/<?php echo $let; ?>.php"><input type="submit" value="Zoek!" name="submit"></a></p>

<optgroup label="Kies een letter">
<select value="Hier dus je selects">Select</select>
</optgroup>

}else{
$con=$_POST['con'];
$let=$_POST['let'];
?>
<a href="cheats/<?php echo $con; ?>/<?php echo $let; ?>.php"><input type="submit" value="Zoek!" name="submit"></a></p>
}