Hello I have a suggestion to the main belt when you scroll the window was always visible on top like the pictures...
1: (http://www.freeimagehosting.net/newuploads/j8yr3.jpg)
2: (http://www.freeimagehosting.net/newuploads/tfufz.jpg)
I browsed a one site and it proved to be very useful.
See yourself: http://www.wrzuta.pl/ (the main belt)