function imgOn(n) {
	var i = "menu" + n + ".src='images/menu" + n + "a.jpg'";
	eval (i);
}


function imgOff(n) {
	var i = "menu" + n + ".src='images/menu" + n + ".jpg'";
	eval (i);
}


function preload() {
	img1 = new Image();
	img1.src = "images/menu1a.jpg";
	img2 = new Image();
	img2.src = "images/menu2a.jpg";
	img3 = new Image();
	img3.src = "images/menu3a.jpg";
	img4 = new Image();
	img4.src = "images/menu4a.jpg";
	img5 = new Image();
	img5.src = "images/menu5a.jpg";
}