function adArray() {
 for (i=0; i*2<adArray.arguments.length; i++) {
  this[i] = new Object();
  this[i].src = adArray.arguments[i*2];
  this[i].href = adArray.arguments[i*2+1];
 }
 this.length = i;
}
function getAdNum() {
 dat = new Date();
 dat = (dat.getTime()+"").charAt(8);
 if (dat.length == 1)
  ad_num = dat%ads.length;
 else
  ad_num = 0;
 return ad_num;
}

var ads = new adArray(
"http://www.thankskillingmovie.com/banners/animation.jpg",
"http://www.amazingsuperpowers.com", 
"http://www.thankskillingmovie.com/banners/dead.jpg",
"http://www.deadbodyguy.com", 
"http://www.thankskillingmovie.com/banners/fxartist.jpg",
"http://www.myspace.com/tro7",
"http://www.thankskillingmovie.com/banners/kajmir.jpg",
"http://www.kajmirroyale.com",
"http://www.thankskillingmovie.com/banners/killswitch.jpg",
"http://www.myspace.com/krynos",
"http://www.thankskillingmovie.com/banners/overated.jpg",
"http://www.myspace.com/overated"
);

var ad_num = getAdNum();

document.write('<A href="'+ads[ad_num].href+'" target="_blank"><IMG SRC="'+ads[ad_num].src+'" '
+'height="116" width="429" border="0" name="adswap"></a>');
// You can change the height and the width of the link images above

link_num = document.links.length-1;

function rotateSponsor() {
 if (document.images) {
  ad_num = (ad_num+1)%ads.length;
  document.adswap.src = ads[ad_num].src;
  document.links[link_num].href = ads[ad_num].href;
  setTimeout("rotateSponsor()",4000);
 }
}
setTimeout("rotateSponsor()",4000);
// Change both the 4000s above to how long you want to show the banner
// 4000 is 4 seconds, 5000 would be 5 seconds