twitter-AJAX

  // Log any kind of Web Intent event to Google Analytics
  // Category: "twitter_web_intents"
  // Action: Intent Event Type
  // Label: Identifier for action taken: tweet_id, screen_name/user_id, click region
 
  // First, load the widgets.js file asynchronously 
  window.twttr = (function (d,s,id) {
    var t, js, fjs = d.getElementsByTagName(s)[0];
    if (d.getElementById(id)) return; js=d.createElement(s); js.id=id;
    js.src="//platform.twitter.com/widgets.js"; fjs.parentNode.insertBefore(js, fjs);
    return window.twttr || (t = { _e: [], ready: function(f){ t._e.push(f) } });
  }(document, "script", "twitter-wjs"));
 
  // Define our custom event handlers
  function clickEventToAnalytics(intent_event) {
    if (intent_event) {
      var label = intent_event.region;
      pageTracker._trackEvent('twitter_web_intents', intent_event.type, label);
    };
  }
 
  function tweetIntentToAnalytics(intent_event) {
    if (intent_event) {
      var label = "tweet";
      pageTracker._trackEvent('twitter_web_intents', intent_event.type, label);
    };
  }
 
  function favIntentToAnalytics(intent_event) {
    tweetIntentToAnalytics(intent_event);
  }
 
  function retweetIntentToAnalytics(intent_event) {
    if (intent_event) {
      var label = intent_event.data.source_tweet_id;
      pageTracker._trackEvent('twitter_web_intents', intent_event.type, label);
    };
  }
 
  function followIntentToAnalytics(intent_event) {
    if (intent_event) {
      var label = intent_event.data.user_id + " (" + intent_event.data.screen_name + ")";
      pageTracker._trackEvent('twitter_web_intents', intent_event.type, label);
    };
  }
 
 // Wait for the asynchronous resources to load
 twttr.ready(function (twttr) {
  // Now bind our custom intent events
  twttr.events.bind('click',    clickEventToAnalytics);
  twttr.events.bind('tweet',    tweetIntentToAnalytics);
  twttr.events.bind('retweet',  retweetIntentToAnalytics);
  twttr.events.bind('favorite', favIntentToAnalytics);
  twttr.events.bind('follow',   followIntentToAnalytics);
});