window.Zee = window.Zee || {};

(function() {
	Zee.CallbackChain = function() {
		return new callbackChain();
	};

	// private object
	var callbackChain = function() {
		var me = this;
		me.queue = [];
		me.current = 0;
		me.add = function(fn) {
			me.queue.push(fn);
			return me;
		};
		me.run = function(next) {
			if((next = me.queue[me.current++])) {
				next(me.run);
			}
			return me;
		};
	};
})();