// JavaScript Document

function photoGallery()
{
	var gallery = document.getElementById("photogallery");
	var photoitems = gallery.getElementsByTagName("div");
	var previous = document.getElementById("previous");
	var next = document.getElementById("next");
	var pArray = new Array();
	for (var i=0;i<photoitems.length;i++)
	{
		if (photoitems[i].className == "photoitem")
		{
			pArray.push(photoitems[i]);
		}
	}
	pArray[0].style.display = "block";
	previous.onclick = function()
	{
		pArray[0].style.display = "none";
		pArray.unshift(pArray.pop());
		pArray[0].style.display = "block";
		return false;
	}
	next.onclick = function()
	{
		pArray[0].style.display = "none";
		pArray.push(pArray.shift());
		pArray[0].style.display = "block";
		return false;
	}
}

function init()
{
	if (arguments.callee.doOnce)
	{
		return;
	}
	if (document.getElementById("photogallery"))
	{
		photoGallery();	
	}
	
}

if (document.addEventListener){document.addEventListener("DOMContentLoaded",init,null);}

window.onload = init;