JavaScript: jQuery: Pub/Sub

gistfile1.js

// Works in modern browsers + IE9, but Modernizr has a polyfill baked in for function.bind.
// Hat tip Paul Irish
(function($){
	var o = $( {} );
	$.subscribe = o.on.bind(o);
	$.unsubscribe = o.off.bind(o);
	$.publish = o.trigger.bind(o);
})(jQuery);