var bannerImg = new Array();
  
  bannerImg[0]="trbanner1.jpg";
  bannerImg[1]="trbanner2.jpg";
  bannerImg[2]="trbanner3.jpg";
  bannerImg[3]="trbanner4.jpg";
  bannerImg[4]="trbanner5.jpg";
  bannerImg[5]="trbanner6.jpg";

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

function cycleBan() {
  newBanner++;
  if (newBanner == totalBan) {
    newBanner = 0;
  }
  document.banner.src=bannerImg[newBanner];
 
  setTimeout("cycleBan()", 10*1000);
}
window.onload=cycleBan;