Event.observe(window, 'load', function() {
	if($('slides')) {
		slides = $$('.slide');
		numslides = slides.size();
		curslide = -1;
		if(numslides > 1) { switchSlide(); }
		else if(numslides == 1) { slides[0].show(); }
	}
});
var slides, numslides, curslide;
var switchSlide = function() {
    if(curslide != -1) new Effect.Fade(slides[curslide], { duration:0.3 });
    if(curslide == (numslides - 1)) { curslide = 0; }
    else { curslide++; }
    new Effect.Appear(slides[curslide], { duration:0.3 });
    window.setTimeout("switchSlide()", 5000);
}