//Pat, this script is dedicated to you ... you know why
window.onfocus = rotate;

var thisAd = 0

function rotate () {
	var adImages = new Array("images/cycling/earth.png","images/cycling/air.png","images/cycling/fire.png","images/cycling/water.png");
	
	thisAd++;
	if (thisAd == adImages.length) {
		thisAd = 0; 
	}
	document.getElementById("myBadge").src = adImages[thisAd];
	
	setTimeout(rotate, 3 * 2000);
}