var bannerImg = new Array();
 
  bannerImg[0]="images/img1.jpg";
  bannerImg[1]="images/img9.jpg";
  bannerImg[2]="images/img3.jpg";
  bannerImg[3]="images/img8.jpg";
  bannerImg[4]="images/img5.jpg";
  bannerImg[5]="images/img6.jpg";
  bannerImg[6]="images/img7.jpg";
   

var newBanner = 0;
var totalBan = bannerImg.length;

function cycleBan() {
  newBanner++;
  if (newBanner == totalBan) {
    newBanner = 0;
  }
  document.banner.src=bannerImg[newBanner];
  
  
  setTimeout("cycleBan()", 4*1000);
}
window.onload=cycleBan;