Hi this is easy but I've forgotten it and can't find the answer!

I have a form used to email and I have a combobox on my page.

What I want to do is change the subject of my email depending on what the user selects on the combobox - how do I do this again???

Heres my PHP:

Code:
<?PHP

$to = "[email protected]";
$subject = "Martin Page";
$message = "Name: " . $name;
$message .= "\nEmail: " . $email;
$message .= "\n\nMessage: " . $message;

$headers = "From: $theEmail";
$headers .= "\nReply-To: $theEmail";
$headers .= "Content-type: text/html; charset=iso-8859-1";

$sentOk = mail($to, $subject, $message, $headers);

?>

Any help folks?