multi columns

<?php get_header(); ?>

                <?php if (have_posts()) : ?>
                <?php while (have_posts()) : the_post(); ?>

                <div <?php $first = ($wp_query->current_post%4==0)?'first':''; post_class(array('column',$first)) ?> id="post-<?php the_ID(); ?>">

                    <div class="meta">
                        Posted by <a href="<?php the_author_url(); ?>"><?php the_author(); ?></a> on <?php the_time('jS F Y') ?><?php edit_post_link('Edit this entry', ' // ', ''); ?>
                    </div>
                    <div class="comment_count"><?php comments_popup_link('0', '1', '%', '', 'n/a'); ?></div>
                    <h2><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title(); ?>"><?php the_title(); ?></a></h2>
                    <div class="body">
                        <?php the_content('Continue Reading'); ?>
                    </div>
                </div>
                <?php endwhile; ?>

                <?php if(function_exists('wp_pagenavi')) : wp_pagenavi();  else : ?>
                <div class="paging">
                    <div class="prev"><?php next_posts_link('Previous Posts') ?></div>
                    <div class="next"> <?php previous_posts_link('Next Posts') ?></div>
                </div>
                <?php endif; ?>

                <?php endif; ?>

<?php get_footer(); ?>