<div id="sidebar">

<div id="adbox"><!-- /Remove this box for pure 3-columns -->   

<!-- Widgetized sidebar 1 --> 

 <ul>

  <li>

 <?php if ( is_active_sidebar( 'sidebar-1' ) ) : ?>

 <?php dynamic_sidebar( 'sidebar-1' ); ?>

<?php endif; ?> 

 </li>

</ul>

</div><!-- /Remove this box for pure 3-columns --> 

<div id="l_sidebar"> 

<!-- Widgetized sidebar 2 --> 

<ul>

  <li>

 <?php if ( is_active_sidebar( 'sidebar-2' ) ) : ?>

 <?php dynamic_sidebar( 'sidebar-2' ); ?>

<?php endif; ?>  

  </li>

</ul>

</div> <!-- /l_sidebar-->

<!-- right_sidebar starts -->

<div id="r_sidebar">

<!-- Widgetized sidebar 3 --> 

<ul>

 <li>

 <?php if ( is_active_sidebar( 'sidebar-3' ) ) : ?>

 <?php dynamic_sidebar( 'sidebar-3' ); ?>

<?php endif; ?> 

 </li> 

</ul>

</div> <!-- /r_sidebar-->

	</div> <!-- /sidebar-->