gistfile1.txt

(function() {
	// Module scope
	var global = this;
	
	// Private methods hook
	var private = {};
	
	// Helper functions
	function foo() {
		return "Helper foo";
	}
		
	var Widget = function (elementId, options) {
		this.scope = "Foo";
		
		// Private methods use 'self' as 'this'
		var self = this;
		function foo() {
			return self.scope;
		}
				
		// Public (not prototyped) method that access private method directly without using 'private'
		this.bar = function() { return foo() + "Bar"; };
		
		// export private methods to the module scope so they can be used in public (prototype) methods
		private = {
			foo: foo
		};
		
		Widget.instances++;
	};
	
	// "Class" properties
	Widget.instances = 0;
	
	// Public methods
	Widget.prototype.fooWorking = function() { return private.foo() };
	Widget.prototype.fooNotWorking = function() { return this.foo() };
	
	// Make Widget globaly accessible
	global.Widget = Widget;
})();