$def with (register_form, registering_new)
$if registering_new:
    <h2>Registering new player</h2>
$else:
    <h2>Modifying player</h2>
<div class="register_form">
    $if registering_new:
        <form name="register_player_form" method="post" action="register">
    $else:
        <form name="edit_player_form" method="post" action="">

    $:register_form
    </form>
</div>