if (document.images) {
	servicesOff = new Image(); servicesOff.src="/images/nav/services.gif";
	servicesOn = new Image(); servicesOn.src="/images/nav/servicesOn.gif";
	portfolioOff = new Image(); portfolioOff.src="/images/nav/portfolio.gif";
	portfolioOn = new Image(); portfolioOn.src="/images/nav/portfolioOn.gif";
	backgroundOff = new Image(); backgroundOff.src="/images/nav/background.gif";
	backgroundOn = new Image(); backgroundOn.src="/images/nav/backgroundOn.gif";
	contactOff = new Image(); contactOff.src="/images/nav/contact.gif";
	contactOn = new Image(); contactOn.src="/images/nav/contactOn.gif";
	
	oneOff = new Image(); oneOff.src="/images/popups/one.gif";
	oneOn = new Image(); oneOn.src="/images/popups/oneOn.gif";
	twoOff = new Image(); twoOff.src="/images/popups/two.gif";
	twoOn = new Image(); twoOn.src="/images/popups/twoOn.gif";
	threeOff = new Image(); threeOff.src="/images/popups/three.gif";
	threeOn = new Image(); threeOn.src="/images/popups/threeOn.gif";
}


function img_act(img) {
	if (document.images) {
	imgOn = eval(img + "On.src");
	document [img].src = imgOn;
	}
}

function img_inact(img) {
	if (document.images) {
	imgOff = eval(img + "Off.src");
	document [img].src = imgOff;
	}
}

var popupWindow = null;

function popup(url, features, width, height, x, y)
{
	if(popupWindow != null && !popupWindow.closed)
		popupWindow.close();
	
	popupWindow = window.open(url, "popupWindow", features+",width="+width+",height="+height+",screenX="+x+",screenY="+y);
	
	return popupWindow;
}