Vanilla Namespace Pattern #1 (96 chars)

vanilla-namespace-1.js

//namespace patter #1 - with comments
(function(window, lastObject, private_n){
	private_n = function(namespace){
		lastObject = lastObject[namespace] = lastObject[namespace] || {};
		return private_n;
	}
	window.n = function(namespace){
		lastObject = window;
		return private_n(namespace)
	}
})(this);


//namespace patter #1 - obfuscated (96 chars)
!function(a,b,c){c=function(a){return b=b[a]=b[a]||{},c},a.n=function(d){return b=a,c(d)}}(this)

//namespace patter #1 - usage
n("system")("drawing");
system.drawing.doIt = function(){};
n("system")("net");
system.net.constant = "const";

console.log(system.drawing.doIt);
console.log(system.net.constant);