<h2>Login</h2>
  <% IF err %><p class=error><strong>Error:</strong> <% err %><% END %>
  <form action="<% login_url %>" method=post>
    <dl>
      <dt>Username:
      <dd><input type=text name=username>
      <dt>Password:
      <dd><input type=password name=password>
      <dd><input type=submit value=Login>
    </dl>
  </form>