var img_prefix =  "sponsors/banner/2009/image_" ;
var img_suffix = ".jpg";
var img_num = new Array("01","02","03","04","05","06","07","08","09","10","11","12","13","14","15","16","17","18","19", "20", "21", "22", "23", "24");
var ahref = "sponsors/sponsors_2009.htm#img_num";
var firstTime = true;
var thisImg;

function rotate() {
	if (document.images) {
		if (firstTime) {
			thisImg = Math.floor((Math.random() * img_num.length))
			firstTime = false
		}
		else {
			thisImg++
			if (thisImg == img_num.length) {
				thisImg = 0
			}
		}
		document.KentLL_Sponsor.src = img_prefix + img_num[thisImg] + img_suffix
		setTimeout("rotate()", 7.5 * 1000)
	}
}