gistfile1.aw

<?php $tombstones = new WP_Query('category_name=tombstones&posts_per_page=-1&order=ASC'); ?>
<?php $counter = 0; ?>

<div class="slide">

<?php if ( $tombstones->have_posts() ) : while ( $tombstones->have_posts() ) : ?>
    <?php if ( $counter && ( $counter % 3 == 0 ) ) echo "</div><!-- /slide -->\r\n\r\n<div class='slide'>"; ?>
    <?php $tombstones->the_post(); $counter++; ?>
    <?php the_content(); ?>
<?php endwhile; endif;?>

</div><!-- /slide -->

</div><!-- end slideshow -->