if (document.images) {
	home0 = new Image(100, 32);
	home0.src = "images/buttons/home0.gif";
	home1 = new Image(100, 32);
	home1.src = "images/buttons/home0a.gif";
	map0 = new Image(100, 32);
	map0.src = "images/buttons/map0.gif";
	map1 = new Image(100, 32);
	map1.src = "images/buttons/map0a.gif";
	gallery0 = new Image(100, 32);
	gallery0.src = "images/buttons/gallery0.gif";
	gallery1 = new Image(100, 32);
	gallery1.src = "images/buttons/gallery0a.gif";
	chatter0 = new Image(100, 32);
	chatter0.src = "images/buttons/chatter0.gif";
	chatter1 = new Image(100, 32);
	chatter1.src = "images/buttons/chatter0a.gif";
	whatsnew0 = new Image(100, 32);
	whatsnew0.src = "images/buttons/whatsnew0.gif";
	whatsnew1 = new Image(100, 32);
	whatsnew1.src = "images/buttons/whatsnew0a.gif";
}

function img_act(imgName) {
	if (document.images) {
		imgOn = eval(imgName + "1.src");
		document [imgName].src = imgOn;
	}
}

function img_inact(imgName) {
	if (document.images) {
		imgOff = eval(imgName + "0.src");
		document [imgName].src = imgOff;
	}
}