// JavaScript Document
//addEvent(window, 'load', photoSwitcher);

var photos = [];
var current_photo = 'photo_1';
var current_img = 'img_1';
var x = 1;
var size = 14;

function changeClass(id, newClass) {
	identity = document.getElementById(id);
	identity.className = newClass;
}
// Adds an event to the page
function addEvent(obj, evType, fn) {
	if (obj.addEventListener) {
		obj.addEventListener(evType, fn, true);
		return true;
	} else if (obj.attachEvent){
		var r = obj.attachEvent("on"+evType, fn);
		return r;
	} else {
		return false;
	}
}

function photoNext() {
	if (x == size) x = 1;
	else x++;
	changeClass(current_photo, 'hidden');
	changeClass(current_img, 'hidden');
	current_photo = 'photo_'+x;
	current_img = 'img_'+x;
	changeClass(current_photo, 'visible');
	changeClass(current_img, 'visible');
	return false;
}
function photoPrevious() {
	if (x == 1) x = size;
	else x--;
	changeClass(current_photo, 'hidden');
	changeClass(current_img, 'hidden');
	current_photo = 'photo_'+x;
	current_img = 'img_'+x;
	changeClass(current_photo, 'visible');
	changeClass(current_img, 'visible');
	return false;
}