namespace and object encapsulation in js

namespace_encapsulation.js

/*
sources: 
	http://www.justatheory.com/computers/programming/javascript/emulating_namespaces.html
	http://www.dustindiaz.com/namespace-your-javascript/
	http://www.crockford.com/javascript/private.html
	http://yuiblog.com/blog/2007/06/12/module-pattern/
	http://stackoverflow.com/questions/881515/javascript-namespace-declaration

*/

if(myNameSpace === undefined) {
	var myNameSpace = function(){};
}

myNameSpace.MyClass = function(param){
	// private members
	var private_var = 'I\'m private, so I cannot be seen from the global scope directly';
	var result;
	
	var private_method = function(){
		return 'I\'m a private method';
	};
	
	return{ //public members
		
		public_property : 'I\'m public', //public member
		another_public_property : 'I\'m public', //public member

		get_private_var : function(){
			return private_var;
		},
		
		get_private_var_method : function(){
			return private_method(); //return the result from private_method
		},
		
		get_public_property: function(){
			return this.public_property;
		},
		
		add_numbers: function(arg1, arg2){
			result = arg1 + arg2;
			return;
		},
		
		get_result:function(){
			return result;
		}
	};
};

$(document).ready(function(){
	var iobj = new myNameSpace.MyClass();
	var iobj2 = new myNameSpace.MyClass();
	
	iobj.add_numbers(1,2);
	iobj2.add_numbers(10,20);
	
	$('#result').append('result object1 : ' + iobj.get_result() +'<br />');
	$('#result').append('result object2 : ' + iobj2.get_result() +'<br />');
	
});