javascript objects

advanced javascript public private protected

var ims = (typeof window.ims == 'undefined') ? {} : window.ims;

var ims.myClass = function(args) {
	
	var myPrivate1 = 'private 1';
	var myPrivate2 = 'private 2';
	
	var myPrivateMethod = function() {
		return myPrivate1;
	}
	
	var myPrivateMethod2 = function() {
		return "you're gay";
	}
	
	var changeValues = function(value) {
		myPrivate1 = myPrivate2 = value;
	}

	this.myProtected = 'protected var';
	
	this.protectedChange = function(value)
	{
		changeValues(value);
	}
	
	this.myProtectedMethod = function() {
		alert(myPrivate2);
		alert(myPrivateMethod2());
		return this.myProtected;
	}

}

ims.myClass.prototype.myPublic = function(args) {
	this.myProtectedMethod();
}

ims.myClass.prototype.changeValues = function(value) {

	this.myProtected = value;
	this.protectedChange(value);
}

var something = new ims.myClass(args);
something.myPublic();
something.changeValues('something');
something.myProtectedMethod();
soemthing.protectedChange('somethingelse');

ims.eventManager = function()
{
	var events = [];
	var messages = [];
	var self = this;
	
	var eventFactory = function(type, callback) {
		return {
			type: type,
			callback: callback,
			context: self
		}
	}
	
	this.getEvents = function() {
		return events;
	}
	
	this.getMessages = function() {
		return messages;
	}
	
	this.addEvent = function(type, callback) {
		var event = eventFactory(type, callback);
		events.push(event);
	}
}

ims.eventManager.__instance = null;
ims.eventManager.getInstance = function(){
	if (ims.eventManager.__instance == null) ims.eventManager.__instance = new ims.eventManager();
	return ims.eventManager.__instance;
}

var listener = {
	textEvent: function(event) {
		alert(event.type);
		alert('did something');
	}
}
var eventManager = ims.eventManager.getInstance();
eventManager.addEvent('text',listener.textEvent);