var core = 0;

function initArray() {

this.length = initArray.arguments.length;
  for (var i = 0; i < this.length; i++) {
  this[i] = initArray.arguments[i];
  }
}

link2 = new initArray(
"http://fatatom.com/",
"http://www.midwestballoonrides.com/"
);

image2 = new initArray(
"/sponsorimages/fatatomlogo.jpg",
"/sponsorimages/midwestballoonrideslogo.jpg"
);

text2 = new initArray(
"Fat Atom Internet Marketing",
"Midwest Balloon Rides"
);

var core = (Math.floor(Math.random()*2));
var ranlink  = link2[core];
var ranimage = image2[core];
var rantext  = text2[core];

document.write('<a id="bannerlink2" href=\"' +ranlink+ '\" target="_blank"><img id="banner2" src=\"'+ranimage+'\" border="0" alt=\"'+rantext+'\"></a>');

function changeImage2() {
var core = (Math.floor(Math.random()*2));
var ranlink  = link2[core];
var ranimage = image2[core];
var rantext  = text2[core];

document.getElementById('bannerlink2').href = ranlink;
document.getElementById('banner2').src = ranimage;
document.getElementById('banner2').alt = rantext;
setTimeout("changeImage2()", 6000);
}

changeImage2();