Singleton

gistfile1.txt

function MyScript(){}
	(function() {
		var THIS = this;
		function defined(x) {
			return typeof x != 'undefined';
		}
		this.ready = false;
		this.init = function() {
			this.ready = true;
		};
		this.doSomething = function() {};   
		var options = {
			x : 123,
			y : 'abc'
		};
		this.define = function(key, value) {
		if(defined(options[key])) {
			options[key] = value;
		}
	};
}).apply(MyScript);