Windows 8 JavaScript Metro Application–Getting Started

(function () {
    "use strict";

    var waitFor = 10;
    var app = WinJS.Application;

    // This function responds to all application activations.
    app.onactivated = function (eventObject) {
        if (eventObject.detail.kind === Windows.ApplicationModel.Activation.ActivationKind.launch) {

            // Retrieve splash screen object
            var splash = eventObject.detail.splashScreen;

            // Retrieve the window coordinates of the splash screen image.
            var coordinates = splash.imageLocation;

            // Position the extended splash screen image in the same location as the splash screen image.
            var holder = document.querySelector("#holder");

            holder.style.left = coordinates.x + "px";
            holder.style.top = coordinates.y + "px";
            holder.style.height = coordinates.height + "px";
            holder.style.width = coordinates.width + "px";

            countDown();
            setInterval(countDown, 1000);

            // Register an event handler to be executed when the splash screen has been dismissed.
            splash.addEventListener("dismissed", onSplashScreenDismissed, false);

            WinJS.UI.processAll();
        }
    };

    app.start();

    function countDown() {
        waitFor = waitFor - 1;
        if (waitFor <= 0) {
            location.href = "/html/homePage.html";
        }
        else
            document.querySelector("#timer").innerHTML = waitFor;
    }

    function onSplashScreenDismissed() {
        // Include code to be executed when the system has transitioned
        // from the splash screen to the application's first view.
    }
})();