is this for a mailing list or a contact form? dpeending on which, it'll detemrine what you do witht he variable, but regardless, you get the information the same way
Code:
<form action="yourfile.php" method="post">
<span class="pagedef">Sign up here . . .</span>
<input size="15" value="Enter your e-mail addresshere" name="address" />
<input type="submit" value="Join" />
</form>
php
Code:
<?php
$address = $_POST["address"];
// whatever you're doing with this info goes here
?>