<?php 
   $sidebar_class = "";
   if (is_single() || is_page())
      if(imwb_interest_get_option('pagesidebar1') == '1')
         $sidebar_class = "left";
      else 
         $sidebar_class = "right";
?>

<?php if(is_active_sidebar("sidebar-post-widget")){ ?>
<div id="content_sidebar" class="tack <?php echo $sidebar_class ?>">
<ul>
	<?php dynamic_sidebar("sidebar-post-widget"); ?>
</ul>
</div>
<?php } ?>