CoffeeScript to load Twitter's twitter-wjs JavaScript. Tip: Any link that goes to an intent URL (like http://twitter.com/intent/tweet) acts like a Twitter button with all the Widget-wjs functionality with events, so you can customize the look of your button without having to use the Twitter generated iFrame buttons.

_twitter_wjs.js.coffee

# Load Twitter Widgets
window.twttr = ((d, s, id) ->
  js = undefined
	fjs = d.getElementsByTagName(s)[0]
	unless d.getElementById(id)
		js = d.createElement(s)
		js.id = id
		js.src = "//platform.twitter.com/widgets.js"
		fjs.parentNode.insertBefore js, fjs
		window.twttr || t = { _e: [], ready: (f)-> t._e.push(f) }
	) document, "script", "twitter-wjs"
	
# Twitter Ready
twttr.ready((twttr)->
  # Twitter Events
  # Event: Tweet
	twttr.events.bind 'tweet', (event) ->
		alert "Twitter tweet just happened!"
)