/// <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));
}