I have extension and i want to open for it a browser popup window my code is:

url = 'http://www....';
window.open(url,'wname','menubar=0,location=0,resizable=0,scrollbars=0,status=0,top=' + top + ',left=' + left + ',width=' + width + ',height=' + height);

even though i set location = 0 i stills shows the location bar - how can i avoid it ?