/* first values of slideshows */
var slideshows = new Array();
slideshows[1] = 0;

/* preload of images */
var images = new Array();
images[1] = new Array();
images[1][0] = new Image();
images[1][0].src = '/images/slideshows/over_ons/01.jpg';
images[1][1] = new Image();
images[1][1].src = '/images/slideshows/over_ons/02.jpg';
images[1][2] = new Image();
images[1][2].src = '/images/slideshows/over_ons/03.jpg';
images[1][3] = new Image();
images[1][3].src = '/images/slideshows/over_ons/04.jpg';

function slideshow(id) {
	if (slideshows[id] == null) {
		return;
	}
	slideshows[id] = slideshows[id] + 1;
	if (images[id].length <= slideshows[id]) {
		slideshows[id] = 0;
	}
	try {
		new Effect.Fade('slideshow_' + id, {
			duration: 0.3,
			from: 1.0,
			to: 0.1,
			afterFinish: function() {
				document.getElementById('slideshow_' + id).src = images[id][slideshows[id]].src;
				new Effect.Fade('slideshow_' + id, {
					duration: 0.3,
					from: 0.1,
					to: 1.0,
					afterFinish: function() {
						setTimeout('slideshow(' + id + ')', 5000);
					}.bind(this)
				});
			}.bind(this)
		});
	}
	catch (error) {
		return;
	}	
}