root/trunk/wp-admin/edit-post-rows.php

<?php
/**
 * Edit posts rows table for inclusion in administration panels.
 *
 * @package WordPress
 * @subpackage Administration
 */

if ( ! defined('ABSPATH') ) die();
?>
<table class="widefat">
    <thead>
    <tr>

<?php $posts_columns = wp_manage_posts_columns(); ?>
<?php foreach($posts_columns as $post_column_key => $column_display_name) {
    if ( 'cb' === $post_column_key )
        $class = ' class="check-column"';
    elseif ( 'comments' === $post_column_key )
        $class = ' class="num"';
    else
        $class = '';
?>
    <th scope="col"<?php echo $class; ?>><?php echo $column_display_name; ?></th>
<?php } ?>

    </tr>
    </thead>
    <tbody>
<?php
if ( have_posts() ) {
    post_rows();
} else {
?>
  <tr>
    <td colspan="8"><?php _e('No posts found.') ?></td>
  </tr>
<?php
} // end if ( have_posts() )
?>
    </tbody>
</table>