Subpages Gallery Template Page

<?php
/*
Template Name: Subpages Thumbnail Page
*/
?>

<?php get_header(); ?>

<div id="main-container-gallery">
   <div id="bottomclear">&nbsp;</div>

   <div class="subpages">
        <span style="display:none;"><?php the_ID(); ?></span>
        <?php $parent = $post->ID; ?>

        <?php
        query_posts('posts_per_page=8&post_type=page&post_parent='.$parent);
        while (have_posts()) : the_post(); ?>

           <?php if ( has_post_thumbnail() ) { ?>

               <?php $image_thumb = get_post_meta($post->ID, 'image-thumb', true); ?>
               <div class="thumbnail"><a href="<?php the_permalink(); ?>"><?php the_post_thumbnail('thin-detail'); ?></a></div>

           <?php } ?>

           <?php if ( has_post_thumbnail() ) { ?>

               <?php $image_thumb = get_post_meta($post->ID, 'image-thumb', true); ?>
               <div class="thumbnail"><a href="<?php the_permalink(); ?>"><?php the_post_thumbnail('wide-detail'); ?></a></div>

           <?php } ?>



           <?php if ( has_post_thumbnail() ) { ?>

               <?php $image_thumb = get_post_meta($post->ID, 'image-thumb', true); ?>
               <div class="thumbnail"><a href="<?php the_permalink(); ?>"><?php the_post_thumbnail('wide-detail'); ?></a></div>

           <?php } ?>



           <?php if ( has_post_thumbnail() ) { ?>

               <?php $image_thumb = get_post_meta($post->ID, 'image-thumb', true); ?>
               <div class="thumbnail"><a href="<?php the_permalink(); ?>"><?php the_post_thumbnail('thin-detail'); ?></a></div>

           <?php } ?>

       <?php endwhile; ?>

   </div>

   <div id="bottomclear">&nbsp;</div>
</div>

<?php get_footer(); ?>