function swapPhoto(one, two, three, four) {
	if (document.getElementById) {
		document.getElementById(one).style.display="block";
		document.getElementById(two).style.display="none";
		document.getElementById(three).style.display="none";
		document.getElementById(four).style.display="none";
	}
	else if (document.all) {
		document.all[one].style.display="block";
		document.all[two].style.display="none";
		document.all[three].style.display="none";
		document.all[four].style.display="none";
	}
	else if (document.layers) {
		document.layers[one].style.display="block";
		document.layers[two].style.display="none";
		document.layers[three].style.display="none";
		document.layers[four].style.display="none";
	}
}

function popUp(url)
{
	newwindow=window.open(url,'name','height=303,width=500,resizable=yes');
	if (window.focus) {newwindow.focus()}
	return false;
}

var W3CDOM = (document.createElement && document.getElementsByTagName);

var mouseOvers = new Array();
var mouseOuts = new Array();

window.onload = init;

function init()
{
	if (!W3CDOM) return;
	var nav = document.getElementById('mouseover');
	var imgs = nav.getElementsByTagName('img');
	for (var i=0;i<imgs.length;i++)
	{
		imgs[i].onmouseover = mouseGoesOver;
		imgs[i].onmouseout = mouseGoesOut;
		var suffix = imgs[i].src.substring(imgs[i].src.lastIndexOf('.'));
		mouseOuts[i] = new Image();
		mouseOuts[i].src = imgs[i].src;
		mouseOvers[i] = new Image();
		mouseOvers[i].src = imgs[i].src.substring(0,imgs[i].src.lastIndexOf('.')) + "_omo" + suffix;
		imgs[i].number = i;
	}
}

function mouseGoesOver()
{
	this.src = mouseOvers[this.number].src;
}

function mouseGoesOut()
{
	this.src = mouseOuts[this.number].src;
}