var image="";
var banners=0;
function cycle() 
{
  if (++banners > 4) banners=1;
    loadbanners();
    document.banner1.src = image;
    window.setTimeout('cycle();',2000);
}
  
function loadbanners() 
{
   if (banners==1)
      {
      image="rotate/1.jpg";
      }
   if (banners==2)
      {
      image="rotate/2.jpg";
      }
   if (banners==3)
      {
      image="rotate/3.jpg";
      }
   if (banners==4)
      {
      image="rotate/4.jpg";
      }
}