window.onload =  choosePic;

var adImages = new Array("Leeds/Showcase/img1.jpg","Leeds/Showcase/img2.jpg","Leeds/Showcase/img3.jpg","Leeds/Showcase/img4.jpg",
"Leeds/Showcase/img5.jpg","Leeds/Showcase/img6.jpg","Leeds/Showcase/img7.jpg","Leeds/Showcase/img8.jpg","Leeds/Showcase/img9.jpg",
"Leeds/Showcase/img10.jpg","Leeds/Showcase/img11.jpg","Leeds/Showcase/img12.jpg","Leeds/Showcase/img13.jpg","Leeds/Showcase/img14.jpg",
"Leeds/Showcase/img15.jpg","Leeds/Showcase/img16.jpg","Leeds/Showcase/img17.jpg","Leeds/Showcase/img18.jpg","Leeds/Showcase/img19.jpg",
"Leeds/Showcase/img20.jpg","Leeds/Showcase/img21.jpg","Leeds/Showcase/img22.jpg","Leeds/Showcase/img23.jpg","Leeds/Showcase/img24.jpg",
"Leeds/Showcase/img25.jpg","Leeds/Showcase/img26.jpg","Leeds/Showcase/img27.jpg","Leeds/Showcase/img28.jpg","Leeds/Showcase/img29.jpg",
"Leeds/Showcase/img30.jpg","Leeds/Showcase/img31.jpg","Leeds/Showcase/img32.jpg","Leeds/Showcase/img33.jpg","Leeds/Showcase/img34.jpg",
"Leeds/Showcase/img35.jpg","Leeds/Showcase/img36.jpg","Leeds/Showcase/img37.jpg","Leeds/Showcase/img38.jpg","Leeds/Showcase/img39.jpg",
"Leeds/Showcase/img40.jpg","Leeds/Showcase/img41.jpg","Leeds/Showcase/img42.jpg","Leeds/Showcase/img43.jpg","Leeds/Showcase/img44.jpg",
"Leeds/Showcase/img45.jpg","Leeds/Showcase/img46.jpg","Leeds/Showcase/img47.jpg","Leeds/Showcase/img48.jpg","Leeds/Showcase/img49.jpg",
"Leeds/Showcase/img50.jpg");
var thisAd = 0;

function rotate() {
	thisAd++;
	if (thisAd == adImages.length) {
		thisAd = 0;
	}
	document.getElementById("adBanner").src = adImages[thisAd];

	setTimeout("rotate()", 6 * 1000);
}

function choosePic() {
	thisAd = Math.floor((Math.random() * adImages.length));
	document.getElementById("adBanner").src = adImages[thisAd];
	
	rotate();
}