function FchangeSlide() {
this.prior = this.slide;
this.i += 1;
if (this.i >= this.n) this.i = 0;
this.slide = $(x[this.i]);
if (this.prior != null) new Effect.Fade(this.prior, {duration: 1.0 });
new Effect.Appear(this.slide, { duration: 1.0 });
}

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

function runSlides(show) {
timr = setInterval("show.changeSlide()", 4000);
}

var show;
document.observe("dom:loaded",initPage);
function initPage() {
x = document.getElementById("Rotator").getElementsByTagName("div");
show = new Show(1,x.length,$(x[0]),null);
if (x.length > 0) runSlides(show);
}