Is it possible to 'hide' url on Android ?

Is it possible to 'hide' url on Android ?

Hi.
 
On my mobile web app ( http://gosushi.dk/mobile/default.aspx) when ever there is a transistion to a page, that doesn't fill the whole screen, the url bar is shown in Andriod. Is there not a way to do like jqMobi where the url bar is never shown, even if the user scrolls completely to the top?
 
On iOS there doesn't seem to be this problem.
 
If I can use 'native' JQM that would be great as I'm not that keen on importing more plugins as the file sizes are big enough as it is :-(
 
Kindly Regards Ruffio