if(is_page()) {
$children = wp_list_pages('title_li=&child_of='.$post->ID.'&echo=0');
if ($children) { ?>
<ul>
<li><h2><?php _e('Pages Below Current' ,'techozoic')?></h2>
<ul><?php echo $children; ?></ul>
</li>
</ul>
<?php }
}