adImages = new Array("countFront2.jpg", "countFront1.jpg", "countFront3.jpg", "countBack.jpg")
thisAd = 0
imgCt = adImages.length

function rotate() {
	if (document.images) {	
		if (document.adBanner.complete) {
		thisAd++
			if (thisAd == imgCt) {
				thisAd = 0
			}
		document.adBanner.src= adImages[thisAd]
		}
	}
}