function slideShowinit() {
	if($('slideshow')) {
		images = $$('ul#slideshow li')
		images[0].up('ul').setStyle("list-style:none");
		slideShow();	
	}
}

function slideShow() {
	num = 0;
	images.invoke("hide");
	images[0].show();
	setInterval("nextImage()", interval);
}

function nextImage() {
	
	if(num<images.length-1) {
		images[num].hide();
		num++;
		images[num].show();
	}
	else {
		images[images.length-1].hide();
		num = 0;
		images[num].show();
	}
	
}

interval = 3000;
document.observe("dom:loaded", slideShowinit);