Add Elements to a Form

<?php show_source(end(explode('/',$_SERVER['PHP_SELF']))); echo "<hr>"; ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
    <meta http-equiv="content-type" content="text/html; charset=utf-8" />
    <title>Add Elements to a Form</title>
</head>
<body>
    <form action="subscribe.php" method="post">
        <fieldset>
            <input type="text" name="email" value="Type Your Email"></input>
        </fieldset>
        <fieldset>
            <input type="submit" name="submit" value="Sign Up!"></input>
        </fieldset>
    </form>
</body>
</html>