Simple Singleton JS

Simple Singleton

var MyClass = (function() {

var instance;

function init() {

	// Private
	var className = "CLASS";
	var cb;

	// public
	return {
		name:"todd",
		sayName:function() {
			if(cb) {
				cb();
			}
		},
		setCallback:function(callback) {
			cb = callback;
		}
	};
};

// Singleton Instance
return {
	getInstance: function() {
		if(!instance) {
			instance = init();
		}
		return instance;
	}
};	
})();

// this is just a ref to getInstance to use globaly 
var globalObject = MyClass.getInstance();