tangor - 8:35 am on Mar 9, 2011 (gmt 0)
Might take a look at FRAMES (as in html frameset, not iframes) to lock a portion(s) of the viewable window. This has been around long before js and is still valid. Bing and Google (and all the other search engines) read FRAMES fine. There are some benefits, as well as downsides, for using FRAMES.
Just a suggestion.