Mimic Java classes using closures and object properties.

Class.js

var Class = 
    // Create a closure with an Immediately-Invoked Function Expression (IIFE)
    (function () {
        (function _init() {
            // Similar to a static initializer in Java
            // This is optional, but it prevents polluting the Class scope.
        })();

        // Private static variable
        var _static;

        // Public static variable
        Class.static;

        function Class(arguments) {
            // Private instance variable
            var _instance;

            // Public instance variable
            this.instance;
        }

        // Publicly expose the Class constructor
        return Class;
    })();

// Create an instance of Class
var object = new Class();