Featured Image Slider

Hello, I really like the theme and all functions. But now I have a question about the featured image slider on my homepage. I want the pictures to randomize everitime someone is opening that page. So the images will not show the same image first every time. I want to use like 10 images and it would be great if sometimes the last is showing first and the first one is showing 5th.. etc Is that possible (I Really hope) My site is Rheja.com Regards jap