jquery.socialbutton.js

  function socialbutton_hatena(target, options, defaults, index, max_index)
  {
    var layout = options.layout || options.button || defaults.button;
    var url = options.url || defaults.url;
    var title = options.title || defaults.title;

    url = htmlspecialchars(url);
    title = htmlspecialchars(title);

    var attr = merge_attributes({
      'href': 'http://b.hatena.ne.jp/entry/' + url,
      'class': 'hatena-bookmark-button',
      'data-hatena-bookmark-title': title,
      'data-hatena-bookmark-layout': layout,
      'title': '\u3053\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u3092\u306f\u3066\u306a\u30d6\u30c3\u30af\u30de\u30fc\u30af\u306b\u8ffd\u52a0'
    });

    var tag = '<a' + attr + '><img src="http://b.st-hatena.com/images/entry-button/button-only.gif" alt="\u3053\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u3092\u306f\u3066\u306a\u30d6\u30\
c3\u30af\u30de\u30fc\u30af\u306b\u8ffd\u52a0" width="20" height="20" style="border: none;" /></a>' + '<script type="text/javascript" src="http://b.st-hatena.com/js/bookmark_button.j\
s" charset="utf-8" async="async"></script>';

    $(target).html(tag);
  }