/**
 * Developed by Congos Solutions
 * All rights reserved
 */

var Portfolio = {
	images:		new Array(),
	amount:		0,
	current:	0,

	init: function(){
		this.images = $$('#portfolio-slideshow img');
		this.amount = this.images.length;

		if (this.amount == 0) {
			return;
		}

		this.images.fade('hide');
		this.images[0].fade('in');
	},
	
	next: function(){
		var newIndex = (this.current + 1) % this.amount;

		if (newIndex == this.current) {
			return;
		}

		this.images[this.current].fade('out');
		this.images[newIndex].fade('in');
		this.current = newIndex;
	},
	
	previous: function(){
		var newIndex = (this.current + this.amount - 1) % this.amount;

		if (newIndex == this.current) {
			return;
		}

		this.images[this.current].fade('out');
		this.images[newIndex].fade('in');
		this.current = newIndex;
	}
};

window.addEvent('domready', function(){
	Portfolio.init();
});