I added the JavaScript in the <head>....
function changeURL()
{
var url = document.getElementById('link').value;
document.getElementById('linkframe').src = url;
}
The clickable image that changes the location:
<img border="0" src="files/images/refresh.bmp" width="11" height="11" onClick="changeURL()">
And the ID to register witht the "getElementById" command:
<iframe id="linkframe" name="I1" width="100%" height="91%" src="http://www.google.com/" border="0" frameborder="0" align="left">
Your browser does not support inline frames or is currently configured not to display inline frames.</iframe>