getter & setter for private objects

[memolus at googlemail.com]

manager = function(object) {
       this.init.apply(this, arguments);
}
manager.prototype = new function() {
       /* Private Properties */
       var gui;
       var obj;

       /* Constructor */
       this.init = function(object) {
               gui = new Gui();
               obj = object;
       }

       /* Property with both accessor and mutator */
       this.__defineGetter__("modus", function() {
               [..]
       });
       this.__defineSetter__("modus", function(modus) {
               [..]
       });

       /* Privileged public method which affords access to private properties */
       this.getGui = function() {
               return gui;
       }
}

Currently I'm able to set accessor and mutator for properties of "this", but not
on the lexical scope chain. I want e.g. "modus" to be private.

Anyway I hope you get what I mean. It's an
evolutionary step to class support. Other programming languages
support

       private int foo {
               get { [..] }
               set { [..] }
       }