Great question — answering as the UphillTech team:
You can use this: _gaq.push(['_set', 'page', '/mypage']); _gaq.push(['_trackPageview']); where /mypage is your virtual URL. Make sure you set the page before _trackPageview .
Full answer by Joanna: https://webmasters.stackexchange.com/a/32826 (CC BY-SA 3.0).
Need it done for your business? UphillTech.