img1 = new Image();
img1.src = "menyval1.png";

img2 = new Image();
img2.src = "menyval2.png";

img3 = new Image();
img3.src = "menyval3.png";


img4 = new Image();
img4.src = "menyval4.png";

function byt(num){

	document.images["linkpic" + num].src = "menyval" + num + "-over.png";
	//document.images[linkpic].src = eval("img" + num);

}

function byttilbake(num){

document.images["linkpic" + num].src = "menyval" + num + ".png";
//document.images[linkpic].src = eval("img" + num);

}