Problem with wrapping in Firefox

Hi,

on my page: http://www.berkeleyclinic.ie/treatments/
The top banner looks fine on IE but in Firefox it gets hidden behind the navigation layer? Would anyone know what the problem is or how to fix it?

the stylesheet file is located at: http://www.berkeleyclinic.ie/style.css

thanks in advance

Maybe you can try setting the width of #treatmentbanner or use float: right; ?
Just suggesting, never try ><

I also don't think you need the positioning you have set on that div either... try floating your nav menu left, and then the banner floating left next to it... or right as the person above just said.