adImages = new Array("portfolio06.jpg","portfolio10.jpg","portfolio14","portfolio12.jpg","portfolio04.jpg","portfolio11.jpg","portfolio13.jpg","portfolio17.jpg","portfolio05.jpg","portfolio15.jpg","portfolio03.jpg","portfolio08.jpg","portfolio16.jpg","portfolio07.jpg","portfolio09.jpg","portfolio02.jpg");

thisAd = 0;

imgCt = adImages.length - 1;

function chgSlide(direction) {
	if(document.images) {
		thisAd = thisAd + direction;
		if(thisAd > imgCt) {
			thisAd = 0;
		}
		if(thisAd < 0) {
			thisAd = imgCt;
		}
		document.adPicture.src = adImages[thisAd];
	}
}