var img=new Array();
img[0]=new Image(); img[0].src="pic/aston20.jpg";
img[1]=new Image(); img[1].src="pic/aston21.jpg";
img[2]=new Image(); img[2].src="pic/aston22.jpg";
img[3]=new Image(); img[3].src="pic/aston23.jpg";
var interval=5000;
var n=0;
var imgs = new Array("pic/aston20.jpg","pic/aston21.jpg","pic/aston22.jpg", "pic/aston23.jpg");
function rotate()
{
  if(navigator.appName=="Netscape" && document.getElementById)
  {
    document.getElementById("p").src=imgs[n];
  }
  else document.images.p.src=imgs[n];
  (n==(imgs.length-1))?n=0:n++;
  setTimeout("rotate()",interval);
}