Buying Help with a Java Script

I would like to customize this script so that it only loads once....so that every every time someone visits another page on my site the script DOES NOT automatically open up another invisible window.

Please PM your quotes....thanks in advance

<script type="text/javascript">
function invisibleWindow(iframeID, url) {

divel = document.createElement("div");
divel.id = "div" + iframeID;
divel.style.width = "25px"; 
divel.style.height = "25px";
divel.style.visibility = "hidden";

//Add div
document.body.appendChild(divel);

domiframe = document.createElement("iframe");
domiframe.id = iframeID; 
domiframe.src = url;
domiframe.style.width = "25px"; 
domiframe.style.height = "25px";

var divid = document.getElementById("div" + iframeID);
divid.appendChild(domiframe);

}
</script>

HTML:

<script type="text/javascript">
invisibleWindow("ID1", "http://www.google.com");
invisibleWindow("ID2", "http://www.microsoft.com");
</script>

HTML:

 

Cash Nebula was gracious enough to assist me with this....so I think I am good now!