Convater kode til php

Jeghar følgendene FORM somjeg gerne vil have lavet om til php
Nedereste kode skal kunne er statte den:

<form action="tilmeld.php?webid=184" method="post"><table border="0" cellspacing="0" cellpadding="0">
<tr><td class="label">*Navn:</td><td class="spacer"></td><td class="input">
<input class="input" name="navn" id="navn" type="text" size="15" maxlength="50" value="" /></td></tr>
<tr><td class="label">*Mobilnummer:</td><td class="spacer"></td><td class="input">
<input class="input" name="mobilnummer" id="mobilnummer" type="text" size="15" maxlength="8" value="" /></td></tr>
<tr><td class="label">*Køn:</td><td class="spacer"></td><td class="input">
<select name="kon" id="kon" class="select">
<option value="0">Vælg...</option>
<option value="1">Mand</option>
<option value="2">Kvinde</option>
</select>
</td></tr>
<tr><td colspan="3" class="submit"><input class="submit" type="submit" value="Tilmeld" name="tilmeld" id="tilmeld" /></td></tr>
<tr><td colspan="3" class="unsubscribe"><a href="afmeld.php?webid=184">Afmeld</a></td></tr>
</table><br/>
</form>

<?php
$contact_name = $_POST['name'];
$contact_email = $_POST['email'];
$contact_subject = $_POST['subject'];
$contact_message = $_POST['message'];

if( $contact_name == true )
{
    $sender = $contact_email;
    $receiver = "info@flashmo.com";
    $client_ip = $_SERVER['REMOTE_ADDR'];
    $email_body = "Name: $contact_name \nEmail: $sender \nSubject: $contact_subject \nMessage: $contact_message \nIP: $client_ip \nFlash Contact Form provided by http://www.flashmo.com";       
    $extra = "From: $sender\r\n" . "Reply-To: $sender \r\n" . "X-Mailer: PHP/" . phpversion();

    if( mail( $receiver, "Flash Contact Form - $subject", $email_body, $extra ) )
    {
        echo "success=yes";
    }
    else
    {
        echo "success=no";
    }
}
?>