img1On = new Image(); img1On.src = "buttons/whatis_on.png";
img2On = new Image(); img2On.src = "buttons/whatwas_on.png";
img3On = new Image(); img3On.src = "buttons/theshelves_on.png";
img4On = new Image(); img4On.src = "buttons/artists_on.png";
img5On = new Image(); img5On.src = "buttons/contact_on.png";
img6On = new Image(); img6On.src = "buttons/where_on.png";
img7On = new Image(); img7On.src = "buttons/links_on.png";
img8On = new Image(); img8On.src = "buttons/home_on.png";

img1Off = new Image(); img1Off.src = "buttons/whatis_off.png";
img2Off = new Image(); img2Off.src = "buttons/whatwas_off.png";
img3Off = new Image(); img3Off.src = "buttons/theshelves_off.png";
img4Off = new Image(); img4Off.src = "buttons/artists_off.png";
img5Off = new Image(); img5Off.src = "buttons/contact_off.png";
img6Off = new Image(); img6Off.src = "buttons/where_off.png";
img7Off = new Image(); img7Off.src = "buttons/links_off.png";
img8Off = new Image(); img8Off.src = "buttons/home_off.png";

function imgOn(w) {
	document.images[w].src = eval(w + "On.src");
	}
	
function imgOff(w) {
	document.images[w].src = eval(w + "Off.src");
	}