Help with image slideshow

Hi !, i’d like to create a dinamic image slideshow as a background for a website. I have several questions, i’ve been checking out the slideshow with xml in the turorials section of kirupa, but i would like a picture to dissapear once the next one is loaded, so i dont have those gray screens in between. And i would need the loader component to be the size of the animation, so if u rezise the window that contains the website the image resizes as well. How can i do that ? Thanks a lot !