Iframe SSI Script II

[fejomite]

1) Script Title: Iframe SSI Script II

2) Script URL (on DD): http://www.dynamicdrive.com/dynamici...iframessi2.htm

3) Describe problem: When I setup the script and post it on my webserver...the content does not show up...it only shows up if I refresh the page

here is the URL to the page...
http://209.183.145.232/calvin/dental/practice.html
it sometimes doesn't do it in Firefox but always does it in Explorer.

Any help would be greatly appreciated

Fejomite