adImages = new  Array("i/banner1.png","i/banner2.png","i/banner3.png")
  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)
		}
	}