document.observe("dom:loaded", function() {
  var test = new a;
});

var a = (function() {

	var a = Class.create({

		initialize: function() {
			new b(this.future_func);
		},

		future_func: function() {

			var later_func = function() {
				alert('hi');
			}

			return later_func;
		}
	});


	return a;

})();

var b = (function() {

	var b = Class.create({

		initialize: function(func) {
			func();
		}
	});

	return b;

})();