(function () {
    "use strict";
    /*global extender is, dateExtended*/

    function defineExtended(extender) {


        var merge = (function merger() {
            function _merge(target, source) {
                var name, s;
                for (name in source) {
                    if (source.hasOwnProperty(name)) {
                        s = source[name];
                        if (!(name in target) || (target[name] !== s)) {
                            target[name] = s;
                        }
                    }
                }
                return target;
            }

            return function merge(obj) {
                if (!obj) {
                    obj = {};
                }
                for (var i = 1, l = arguments.length; i < l; i++) {
                    _merge(obj, arguments[i]);
                }
                return obj; // Object
            };
        }());

        function getExtended() {

            var loaded = {};


            //getInitial instance;
            var extended = extender.define();
            extended.expose({
                register: function register(alias, extendWith) {
                    if (!extendWith) {
                        extendWith = alias;
                        alias = null;
                    }
                    var type = typeof extendWith;
                    if (alias) {
                        extended[alias] = extendWith;
                    } else if (extendWith && type === "function") {
                        extended.extend(extendWith);
                    } else if (type === "object") {
                        extended.expose(extendWith);
                    } else {
                        throw new TypeError("extended.register must be called with an extender function");
                    }
                    return extended;
                },

                define: function () {
                    return extender.define.apply(extender, arguments);
                }
            });

            return extended;
        }

        function extended() {
            return getExtended();
        }

        extended.define = function define() {
            return extender.define.apply(extender, arguments);
        };

        return extended;
    }

    if ("undefined" !== typeof exports) {
        if ("undefined" !== typeof module && module.exports) {
            module.exports = defineExtended(require("extender"));

        }
    } else if ("function" === typeof define && define.amd) {
        define(["extender"], function (extender) {
            return defineExtended(extender);
        });
    } else {
        this.extended = defineExtended(this.extender);
    }

}).call(this);