/**************************************************************

	Slideshow script (homepage)
	Author : http://blog.remvee.net/2006/01/23/slideshow_met_div_s_dmv_scriptaculous

**************************************************************/

function Slideshow(slideshow, timeout) {
  this.slides = [];
  var nl = $(slideshow).getElementsByTagName('div');
  for (var i = 0; i < nl.length; i++) {
	if (Element.hasClassName(nl[i], 'slide')) {
	  this.slides.push(nl[i]);
	}
  }
  this.timeout = timeout;
  this.current = 0;

  for (var i = 0; i < this.slides.length; i++) {
	this.slides[i].style.zIndex = this.slides.length - i;
  }

  Element.show(slideshow);
  setTimeout((function(){this.next();}).bind(this), this.timeout + 850);
}

Slideshow.prototype = {
  next: function() {
	for (var i = 0; i < this.slides.length; i++) {
	  var slide = this.slides[(this.current + i) % this.slides.length];
	  slide.style.zIndex = this.slides.length - i;
	}

	Effect.Fade(this.slides[this.current], {
	  afterFinish: function(effect) {
		effect.element.style.zIndex = 0;
		Element.show(effect.element);
		Element.setOpacity(effect.element, 1);
	  }
	});

	this.current = (this.current + 1) % this.slides.length;
	setTimeout((function(){this.next();}).bind(this), this.timeout + 850);
  }
}