var BidForm = (function() {
    var _instance = null;
    var klass = Class.create(Bid, {
        initialize: function(options) {
            if (_instance) return null;
            // loaded an existing bid, must be instantiated first, because the
            // latter auction objects pass/pull data from the Bid singelton
            this.BidGroups = BidGroups.instance();
            this.BidQty    = BidQty.instance();
            this.BidAmt    = BidAmt.instance();
            // after groups, qty and amt are setup, run the bid status logic
            this.BidStatus = BidStatus.instance();

            $('bidTickets_reset').observe('click', this.reset.bindAsEventListener(this));
            $('bidTickets_submit').observe('click', this.submit.bindAsEventListener(this));
        },

etc....