Create toast with Windows.UI (Windows 8 JavaScript app).

toast.js

// 1
(function(undefined) {
    "use strict";
        
    var Notifications = Windows.UI.Notifications;
    var Xml = Windows.Data.Xml;
    
    var ToastController = {
        configToXML: function(config) {
            config.version = config.version || "1";
            config.template = config.template || "ToastText02";
            
            return "" 
                + "<toast>"
                    + "<visual version='" + config.version + "'>"
                        + "<binding template='" + config.template + "'>"
                            + "<text id='1'>" + config.heading + "</text>"
                            + "<text id='2'>" + config.message + "</text>"
                        + "</binding>"
                    + "</visual>"
               + "</toast>";
        },
        getToastDOM: function(xml) {
            var toastDOM = new Xml.Dom.XmlDocument();
            toastDOM.loadXml(xml);
            return toastDOM;
        },
        showToast: function(config) {
            var xml = this.configToXML(config),
                toastDOM = this.getToastDOM(xml),
                toast = new Notifications.ToastNotification(toastDOM);
             
            Notifications.ToastNotificationManager
                         .createToastNotifier()
                         .show(toast);
        }
    };
})();

// 2
(function (undefined) {
    "use strict";

    // TODO: toast factory for xmlstring

    var Notifications = Windows.UI.Notifications;
    var Xml = Windows.Data.Xml;

    var ToastController = {
        getNotificationDOM: function (xmlString) {
            var toastDOM = new Xml.Dom.XmlDocument();
            toastDOM.loadXml(xmlString);
            return toastDOM;
        },
        getNotification: function (notificationDOM) {
            return new Notifications.ToastNotification(notificationDOM);
        },
        showNotification: function (notification) {
            Notifications.ToastNotificationManager
                         .createToastNotifier()
                         .show(notification);
        }
    };
})();

// 3
(function () {
    "use strict";

    var Notifications = Windows.UI.Notifications;
    var Xml = Windows.Data.Xml;

    var ToastController = {
        createToast: function (xmlString) {
            var toastDOM = new Xml.Dom.XmlDocument();
            toastDOM.loadXml(xmlString);
            return new Notifications.ToastNotification(toastDOM);
        },
        showToast: function (toast) {
            Notifications.ToastNotificationManager
                         .createToastNotifier()
                         .show(toast);
            return toast;
        }
    };
})();