ajaxCaller.shouldDebug = false;
var bannersURL = "getvenuebanners";

window.onload = function() {
  getBanners();
  setInterval(getBanners, 10000);
}

function getBanners() {
  ajaxCaller.getPlainText(bannersURL, showBanners);
}

function showBanners(text) {
  var defaultTimeLabel = $("imageholder");
  defaultTimeLabel.innerHTML = text;
}