imgArr = new Array("./images/ah1.jpg", "./images/ef1.jpg", "./images/ah2.jpg", "./images/ef2.jpg")

thisSlide = -1
imgCt = imgArr.length

function rotate() {
   if (document.images) {
      if (document.imgRoll.complete) {
         thisSlide++
         if (thisSlide == imgCt) {
            thisSlide = 0
         }
         document.imgRoll.src = imgArr[thisSlide]
      }
      setTimeout("rotate()", 10 * 1000)
   }
}