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// ページネーション
function pagination ($pages = '', $range = 4) {
  $showitems = ($range * 2) + 1;  
  global $paged;
  
  if (empty($paged)) $paged = 1;
  
  if ($pages == '') {
    global $wp_query;
    $pages = $wp_query->max_num_pages;
    if (!$pages) $pages = 1;
  }   

  if (1 != $pages) {
    echo "<div class=\"pagination\"><span>Page ".$paged." of ".$pages."</span>";
    if ($paged > 2 && $paged > $range + 1 && $showitems < $pages) echo "<a href='".get_pagenum_link(1)."'>&laquo; First</a>";
    if ($paged > 1 && $showitems < $pages) echo "<a href='".get_pagenum_link($paged - 1)."'>&lsaquo; Previous</a>";
    for ($i = 1; $i <= $pages; $i++) {
      if (1 != $pages && (!($i >= $paged+$range+1 || $i <= $paged-$range-1) || $pages <= $showitems )) {
        echo ($paged == $i)? "<span class=\"current\">".$i."</span>":"<a href='".get_pagenum_link($i)."' class=\"inactive\">".$i."</a>";
      }
    }
    if ($paged < $pages && $showitems < $pages) echo "<a href=\"".get_pagenum_link($paged + 1)."\">Next &rsaquo;</a>";
    if ($paged < $pages-1 &&  $paged+$range-1 < $pages && $showitems < $pages) echo "<a href='".get_pagenum_link($pages)."'>Last &raquo;</a>";
    echo "</div>\n";
  }
}