function FchangeSlide() {
	this.prior = this.slide;
	this.i += 1;
	if (this.i > this.n) this.i = 1;
	this.slide = $('slide'+this.i);
	new Effect.Appear(this.slide, { duration: 2.0 });
	if (this.prior != null) new Effect.Fade(this.prior, { duration: 2.0 });
}

function Show(i, n, slide, prior) {
	this.i = i;
	this.n = n;
	this.slide = slide;
	this.prior = prior;
	this.changeSlide = FchangeSlide;
}

function startShow() {
	var x = document.getElementById('ssContainer');
	n = x.getElementsByTagName("div");
	if (n.length > 1) {
	show = new Show(1,n.length,$('slide1'),null);
	timr = setInterval("show.changeSlide()", 5000);
}
}
//alert(document.getElementsByTagName('body')[0]);
//document.getElementsByTagName('body')[0].addEventListener('load',startShow,false);