function Drawing (id, element) {
    /*
     * Section A: value of 'this' object of type 'Drawing' (expected);
     *  Variables I ought to have access to from any point in Drawing's invocation
     */
    { // Preconstruction
        var Drawing = this;
        var SVG = document.createElementNS('http://www.w3.org/2000/svg', "SVG");
        support.dom.Associative.call(Drawing, id, element);
        element = Drawing.$(); // In case element was null
        element.className = "Drawing";
        // Things in or about the drawing
        var shapes = [];

    }


    function add (shape) {
        /*
         * Section B: value of 'this' Window object
         * What gives in this function?
         *  Variables I have access to from section A:
         *    element: yes, id: no, Drawing: no, SVG: yes
         *  ?$@#$%^$#!!!!! Help me!
         */
        if (shape instanceof Shape) {
            shapes.push(shape);
            if(!this.render) SVG.appendChild(shape.toSVG());
            return shape;
        }
    }


    this.modify = function (options) {
        if (options.create) {
            return add(create[options.create](options));
        }
    };
}

function Class () {
    // this: an object with a prototype of Class, if 'new'ed, window otherwise
    var that = this;
    function privateMethod () {
        // this: a reference to window.  privateMethod still belongs to Class' closure
        var dat = this;

        // that: an object with a prototype of Class, if 'new'ed, window otherwise
        var dis = that;
    }
}