adImages = new Array("one.jpg","two.jpg","three.jpg","four.jpg","five.jpg")
  thisAd = 0
  imgCt = adImages.length

  function rotate() {
    if (document.images) {
      thisAd++
      if (thisAd == imgCt) {
        thisAd = 0
      }
      document.adBanner.src=adImages[thisAd]
        setTimeout("rotate()", 3 * 1000)
      }
  }