offline.js

gistfile1.js

(function () {
    "use strict";
    var nav = WinJS.Navigation;
    
    function goOfflineMode() {
        ShowErrorPopup();
        nav.navigate("/pages/bookmark/landingBookmark.html", null);
    }
    
    function ShowErrorPopup() {
        ...
    }

    WinJS.Namespace.define("Offline",
        {
            goOfflineMode: goOfflineMode
        }
    );
})();