var current = 0;
var photos = new Array(7);

document.observe("dom:loaded", function() {
	if ($('homeSlides')) {
		photos[0] = new Image();
		photos[0].src = '/images/homeslideshow/homeslides1.jpg';
		photos[1] = new Image();
		photos[1].src = '/images/homeslideshow/homeslides2.jpg';
		photos[2] = new Image();
		photos[2].src = '/images/homeslideshow/homeslides3.jpg';
		photos[3] = new Image();
		photos[3].src = '/images/homeslideshow/homeslides4.jpg';
		photos[4] = new Image();
		photos[4].src = '/images/homeslideshow/homeslides5.jpg';
		photos[5] = new Image();
		photos[5].src = '/images/homeslideshow/homeslides6.jpg';
		photos[6] = new Image();
		photos[6].src = '/images/homeslideshow/homeslides7.jpg';
		slideshow();	
	}
});

function slideshow() {
	$('homeSlides').getElementsBySelector('a').each(function(s){
		s.observe('click',function(e) {
			Event.stop(e);
			var tag = this;
			switch (tag.id) {
				case 'previous': getPrev(); break;
				case 'next': getNext(); break;
			}
			$('slide').src = photos[current].src;
		});
	});
}

/*function slideshow() {
	$('homeSlides').getElementsBySelector('a').each(function(s){
		s.observe('click',function(e) {
			Event.stop(e);
			var tag = this;
			new Ajax.Updater('homePhoto', tag.href);
		});
	});
}*/

function getNext() {
		if (current == photos.length) {
			current = 0;
		}else{
			current++;
		}
}

function getPrev() {
		if (current == 0) {
			current = photos.length;
		}else{
			current--;
		}
}