PHP
<div id="sidebar">
<div id="sidebar-top">
<?php /* Widgetized sidebar, if you have the plugin installed. */ if ( !function_exists('dynamic_sidebar') || !dynamic_sidebar(1) ) : ?>
<?php endif; ?>
</div>
<div id="sidebar-bottom">
<?php /* Widgetized sidebar, if you have the plugin installed. */ if ( !function_exists('dynamic_sidebar') || !dynamic_sidebar(4) ) : ?>
<?php endif; ?> </div>
</div>