sidebar.php

<div id="katuhu">

    <?php if (function_exists('dynamic_sidebar') && dynamic_sidebar('Widgetized Area')) : else : ?>

    <div class="pre-widget">
        <p><strong>Widgetized Area</strong></p>
        <p>This panel is active and ready for you to add some widgets via the WP Admin</p>
    </div>

    <?php endif; ?>

</div>