var logoImg = new Array('logo_psm.gif','automotivemarketing.gif','fitnessmarketing.gif');
var bannerImg = new Array({img:'image_homepage1.jpg',logo:0},{img:'image_treadmillman.jpg',logo:2},{img:'image_homepage2.jpg',logo:0},{img:'image_homepage3.jpg',logo:0},{img:'image_runnerstreet.jpg',logo:2},{img:'image_homepage4.jpg',logo:0},{img:'image_exerciseball.jpg',logo:2},{img:'image_homepage5.jpg',logo:0},{img:'image_weightlifterbackafam.jpg',logo:2});
var newBanner = Math.floor(Math.random() * bannerImg.length);
var totalBan = bannerImg.length;

function cycleBan() {
  newBanner++;
  if (newBanner == totalBan) {
    newBanner = 0;
  }
  document.banner.src = 'images/' + bannerImg[newBanner].img;
  document.logo.src = 'images/' + logoImg[bannerImg[newBanner].logo];
  // set the time below for length of image display
  // i.e., "4*1000" is 4 seconds
  setTimeout("cycleBan()", 4*1000);
}
window.onload=cycleBan;