[Useless]

Had that same shit happen to me about 6 months ago. A variety of pop-ups suddenly came out of nowhere. Luckily, I read about the same thing happening all over the place the day before. I moved away from that host that day. Something in Apache was injecting the code as the pages were being displayed. When I'd FTP to my sites, the code could not be found on any HTML page I had uploaded. There's nothing quite as scary as a hacked server and host who keeps saying that nothing is wrong on their end.