previous next post links with thumbnails wp --> goes inside post loop

posts-nav-thumbs-wp.php

<div id="cooler-nav" class="navigation">
    <?php
    	$prevPost = get_previous_post(true);
    	if($prevPost) : ?>
            <div class="nav-box previous">
            <?php $prevthumbnail = get_the_post_thumbnail($prevPost->ID, array(100,100) ); ?>
            <?php previous_post_link('%link',"$prevthumbnail  <p>%title</p>", TRUE); ?>
            </div>
    <?php endif; ?>
    <?php
    	$nextPost = get_next_post(true);
    	if($nextPost) : ?>
            <div class="nav-box next">
            <?php $nextthumbnail = get_the_post_thumbnail($nextPost->ID, array(100,100) ); ?>
            <?php next_post_link('%link',"$nextthumbnail  <p>%title</p>", TRUE); ?>
            </div>
    <?php endif; ?>
</div><!--#cooler-nav div -->