I would like to rotate random banner ads on my website

Can anyone tell me a code to rotate through random banner ads on my site each time a page is refreshed or visited?

I currently have the following code, which automatically rotates through the banners every few seconds.

<script type="text/javascript">
var imgs1 = new Array("[I]myimage1[/I]","[I]myimage2[/I]");
var lnks1 = new Array("[I]mylink1[/I]","[I]mylink[/I]2");
var alt1 = new Array("[I]myalt1[/I]","[I]myalt2[/I]");
var currentAd1 = 0;
var imgCt1 = 2;
function cycle1() {
  if (currentAd1 == imgCt1) {
    currentAd1 = 0;
  }
var banner1 = document.getElementById('adBanner1');
var link1 = document.getElementById('adLink1');
  banner1.src=imgs1[currentAd1]
  banner1.alt=alt1[currentAd1]
  document.getElementById('adLink1').href=lnks1[currentAd1]
  currentAd1++;
}
  window.setInterval("cycle1()",10000);
</script>
<a href=""[I]mylink1[/I]"" id="adLink1" target="_top">
<img src="[I]myimage1[/I]" id="adBanner1" border="0" width="728" height="90"></a>

Code (markup):

Perhaps there is an adjustment I can make to this code to make it only change on when the page loads or is reloaded? If not, do any of you know a code that would do what I need?

I've tried PHP codes, but they do not work on my site, so it can't be PHP.

Thanks for your help.


**UPDATE**

Got what I needed.

For anyone else who needs a code to rotate through random banners each time the page is visited or reloaded, I posted the code in this thread: http://forums.digitalpoint.com/showthread.php?p=10250694#post10250694 .