if ( !function_exists( 'series_posts_new' ) )
{
  function series_posts_new()
  {
    // get posts array
    $series_posts = get_series_posts();

    // loop through the series_posts array if is_array()
    if ( is_array( $series_posts ) )
    {
      // set empty lists
      $list = '';

      // iterate over posts loop
      foreach ( $series_posts as $post )
        $list .= '<li><a href="'.get_permalink( $post->ID ).'">'.get_the_post_thumbnail( $post->ID, 'post-series-thumbnail',array('title' => "") ).'</a><a class="series-post-title-link" href="'.get_permalink( $post->ID ).'"><div class="series-post-title">'.$post->post_title.'</div></a></li>';

      return '<ul id="series-posts-list">'.$list.'</ul>';
    }

    return false;
  }
}