Object pattern

function theObject(){}
 
(function() {
    // private properties
    var THIS = this;
    var options = {
        x : 123,
        y : 'abc'
    };
 
	 // private properties setter
    this.define = function(key, value) {
        if(defined(options[key])) options[key] = value;
    };
 
    // private method
    function defined(x) {
        return typeof x != 'undefined';
    }
 
	 // public properties
    this.ready = false;
 
	 // public method
    this.init = function() {
        this.ready = true;
    };
 
}).apply(theObject); // set this to MyScrip object