Make direct command on Metro style app settings (JavaScript)

gistfile1.js

(function () {

var standard_commands,
    special_commands;

standard_commands = {
    game: {title: 'game settings'}
};

special_commands = {
    popup: {title: 'go Facebook.com', cmd: function () {
        window.open('http://www.facebook.com');
    }}
};

WinJS.Application.onsettings = function (e) {
    // populate standard commands
    e.detail.applicationcommands = standard_commands;
    WinJS.UI.SettingsFlyout.populateSettings(e);

    // populate special commands -> extract from BingFinance app
    var appSettings = Windows.UI.ApplicationSettings,
        vector = e.detail.e.request.applicationCommands;
    for (var key in special_commands) {
        var entry = special_commands[key],
            cmd = new appSettings.SettingsCommand(key, entry.title, entry.command);
        vector.append(cmd);
    }
};

})();