Post Nav

Hi,

I found an excellent post nav hack by Sam Burdge that enables a divider to be hidden if on first and last page.
Here’s the code:

<div class="navigation">
		<div class="alignleft">
			<?php posts_nav_link('','', __('&larr; Older')); ?>
			<?php $divider = ' | '; ?>
			<?php $page_num = $paged; ?>
			<?php $max_num_pages = $wp_query->max_num_pages; if($page_num == ''){$page_num = '1';} ?>
			<?php if($page_num>1 && $page_num<$max_num_pages){echo $divider;} ?>
			<?php posts_nav_link('', __('Newer &rarr;'),''); ?>
        </div>
	</div>

Could anyone advise me on how to modify this so that it works on single pages…?

Thanks.