var c = 1;

var image1 = new Image();
image1.src = "kam1.jpg";
var image2 = new Image();
image2.src = "kam2.jpg";
var image3 = new Image(); 
image3.src = "kam3.jpg";
var image4 = new Image();
image4.src = "kam4.jpg";

function disp_img(w)
	{
	if (c == 5)
		{
		c = 1;
		}
	var img_src = "kam" + c + ".jpg";
	document.ani.src = img_src;
	c++;
	}

t = setInterval("disp_img(c)", 4000);