var n = 1;

var image1 = new Image();
image1.src = "/images/animate/legacy/frame1.jpg";
var image2 = new Image();
image2.src = "/images/animate/legacy/frame2.jpg";
var image3 = new Image();
image3.src = "/images/animate/legacy/frame3.jpg";
var image4 = new Image();
image4.src = "/images/animate/legacy/frame4.jpg";

function disp_img(w)
	{
	if (n == 5)
		{
		    n = 1;
		}
	var img_src = "/images/animate/legacy/frame" + n + ".jpg";
	document.legacy.src = img_src;
	n++;
	}

t = setInterval("disp_img(n)", 3000);