function onSourceDownloadProgressChanged(sender, eventArgs) {
    sender.findName("LayoutRoot").Width = document.body.clientWidth;
    sender.findName("LayoutRoot").Height =document.body.clientHeight;
    //sender.findName("StatusText").Text = Math.round((eventArgs.progress * 1000)) / 10 + " percent loaded";
    sender.findName("ProgressBarTransform").ScaleX = eventArgs.progress;
}
$(document).ready(function() {
});