/// <summary>
        /// Slides a page out to the left
        /// </summary>
        /// <param name="page">The page to animate</param>
        /// <param name="seconds">The time the animation will take</param>
        /// <returns></returns>
        public static async Task SlideAndFadeOutToLeft(this Page page, float seconds)
        {
            // Create the storyboard
            var sb = new Storyboard();

            // Add slide from right animation
            sb.AddLoginSlideToLeft(seconds, page.WindowWidth);

            // Add fade in animation
            sb.AddLoginFadeOut(seconds);

            // Start animating
            sb.Begin(page);

            // Make page visible
            page.Visibility = Visibility.Visible;

            // Wait for it to finish
            await Task.Delay((int)(seconds * 1000));
        }