Javascript Bug fix

Avg Bid (USD)
Project Budget (USD)
$30 - $250

Project Description:
I have a bug on my site.
My site has an i frame on home page that holds content.
After installing ads that move with scroll bar the bug happened.

In FF & Chrome, the i-frame that shows content gets cut off at bottom and main scroll bars wont scroll anymore like page is at bottom already. But the iframe content still has content thats not showing.

Please see attached image.

Skills required:
Javascript, jQuery / Prototype
Additional Files: scrollbug.JPG
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