Асинхронное подключение Google Analytics, Google +1, Facebook SDK, Twitter Widgets и Вконтакте API

social.js

(function(window, document) {
  window.___gcfg = {                // Настройки языка для Google +1 Button
    lang: 'ru'
  };

  window._gaq = [                   // Настройки Google Analytics
    ['_setAccount', 'UA-XXXXXX-1'],
    ['_trackPageview'],
    ['_trackPageLoadTime']
  ];

  var apis = [
    'https://apis.google.com/js/plusone.js',                                            // Google +1 Button
    '//userapi.com/js/api/openapi.js?34',                                               // Vkontakte API
    '//platform.twitter.com/widgets.js',                                                // Twitter Widgets
    '//connect.facebook.net/ru_RU/all.js#xfbml=1',                                      // Facebook SDK
    ('https:' == location.protocol ? '//ssl' : '//www') + '.google-analytics.com/ga.js' // Google Analytics
  ],

  iterator = apis.length,
  script   = 'script',

  fragment = document.createDocumentFragment(),
  element  = document.createElement(script),

  clone;

  while (iterator--) {
    clone = element.cloneNode(false);
    clone.async = clone.src = apis[iterator];
    fragment.appendChild(clone);
  }

  clone = document.getElementsByTagName(script)[0];
  clone.parentNode.insertBefore(fragment, clone);

})(this, document);

social.min.js

(function(c,b){c.___gcfg={lang:"ru"};c._gaq=[["_setAccount","UA-XXXXXX-1"],["_trackPageview"],["_trackPageLoadTime"]];for(var d=["https://apis.google.com/js/plusone.js","//userapi.com/js/api/openapi.js?34","//platform.twitter.com/widgets.js","//connect.facebook.net/ru_RU/all.js#xfbml=1",("https:"==location.protocol?"//ssl":"//www")+".google-analytics.com/ga.js"],e=d.length,f=b.createDocumentFragment(),g=b.createElement("script"),a;e--;)a=g.cloneNode(false),a.async=a.src=d[e],f.appendChild(a);a=b.getElementsByTagName("script")[0];
a.parentNode.insertBefore(f,a)})(this,document);