Malware in URL

A number of visitors to my site have complained of getting warnings in Avast when they try to load my site (www.ridingthetiger.org). When I run sucuri site check, I get this:

http://sitecheck.sucuri.net/results/www.ridingthetiger.org

I already removed the first code by re-installing the wooslider file.

However I can’t seem to find the second bit of code. How can I find and remove this? I tried re-installing wordpress already.