Use a little Css to hide stuff in an iframe.
I got this from http://blog.scyberia.org/ - many thanks!
First, create a container for the iFrame which covers up certain part of it.
#iframeholder { width:700px; height:700px; overflow-x:hidden; overflow-y:auto; position:relative; }
Then create an ID for the iFrame:
#inneriframe { top:-100px; left:-200px; width:1280px; height:1200px; position:absolute; }
Then, the html:
<div id="iframeholder"> <iframe id="inneriframe" src="http://example.com/"></iframe> </div>