gistfile1.js

(function(){
var event_names = { 
	"click" :   "" ,
	"tweet" :  "",
	"retweet" : "source_tweet_id",
	"follow" : "screen_name",
	"favorite" : "tweet_id"
	};

for(var event_name in event_names)
{
	if(event_names.hasOwnProperty(event_name)){
		twttr.events.bind(event_name, function(intent_event){
			if(intent_event)
			{
				var label = intent_event.type==="click" ? intent_event.region : (intent_event.data) ? intent_event.data[event_names[intent_event.type]] : "" ;
				dataLayer.push({
          'event': 'socialInt', 
          'socialNetwork': 'Twitter', 
          'socialAction': intent_event.type, 
          'socialTarget': label
        });
			}
		});
	}
}
}());