It's worse than that - the first time I tried visiting your first site I got redirected to a dodgy site. Second attempt I got your site and can see the code you're referring to - it's about half way down the code, straight after the header, but there's no clue as to how it's been added.
Remain calm and carefully follow this guide. I've had the same occur to me and I ended up weedling out code from the root of wp-content/uploads as well as other folders.
