js.tongji.cn.yahoo.com??

Hope someone can tell me what's going on. When I go to a site where I've never had any problems before, now AVG gives a pop up threat message listing multiple threats

js.tongji.cn.yahoo.com/611067/ystst.js Exploit Javascript obfuscation

2 times. It's only on that site and no where else. I've run AVG, Super antispyware, Spybot and about to run a Windows live onecare scan but so far, nothing other than tracking cookies have shown up and I cleared those.
I take it that the thrat is on the site and not in my computer?

Anyone know what this threat is?

 

Thanks for the reply Tim. I did find out it's a false positive. Seems the site's page view counter and an update from AVG didn't want to play together. I do have site advisor and like the program. The site isn't in their data base but it's one I'm at a lot.

Thanks again for the reply.