category columns

<?php  $cats = get_categories('orderby=count&order=DESC');

foreach ($cats as $cat) :

echo '<div class="col">';

$args = array(
'posts_per_page' => -1, // max number of post per category
'cat' => $cat->term_id
);
query_posts($args);

     if (have_posts()) :
     $num_of_posts = $wp_query->post_count;
     echo '<h2>Latest '; if($num_of_posts>1) { echo $num_of_posts; }; echo ' Post'; if($num_of_posts>1) { echo 's';} ; echo ' in '.$cat->name.' Category</h2>';

     while (have_posts()) : the_post(); ?>

            <div <?php post_class() ?> id="post-<?php the_ID(); echo ' '.$marker; ?>">
                <h2><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title_attribute(); ?>"><?php the_title(); ?></a></h2>

                <small><?php the_time('F jS, Y') ?>  by <?php the_author();  ?> </small>

                <div class="entry">


                <?php the_excerpt(); ?>
                </div>

                <p class="postmetadata">Posted in <?php the_category(', ') ?> | <?php edit_post_link('Edit', '', ' | '); ?>  <?php comments_popup_link('No Comments &#187;', '1 Comment &#187;', '% Comments &#187;'); ?><br /><?php the_tags('keywords: ', ', ', ' '); ?> </p>

            </div>

        <?php endwhile; ?>

    <?php else :
        echo '<h2>No Posts for '.$cat->name.' Category</h2>';
     endif;

     wp_reset_query(); ?>

<?php
echo '</div> <!--end of col-->';
endforeach; ?>