Modifying the email form tutorial php file

This is the php script from the Flash form tutorial.


<?php

$sendTo = "*********@gmail.com";
$subject = "My Flash site reply";

$headers = "From: " . $_POST["firstName"] ." ". $_POST["lastname"] . "<" . $_POST["email"] .">
";

$headers .= "Reply-To: " . $_POST["email"] . "
";

$headers .= "Return-path: " . $_POST["email"];

$message = $_POST["message"];

mail($sendTo, $subject, $message, $headers);

?>

I wanted to modify it to add a few more fields instead of just one message field i.e telephone number, address etc

If there are a few more variables posted from flash like this:


$message = $_POST["message"];
$telephone = $_POST["telephone"];
$address = $_POST["address"];

How do I modify this line:

mail($sendTo, $subject, $message, $headers);

to include the new variables within the message field.