FakeAlert virus removal

["John Williams" <john.b.williams () gmail com>]

Dear LIst,

I am working with a small local police department to resolve a malware
issue on their police web site. When the web site is access directly
from a browser address bar, the web site displays properly. But when
the web site is accessed via a google search, the "FakeAlert" virus
for AntiVirus 2009 takes over the browser. I am interested in a)
understanding how this virus operates, and b) advice for removing the
virus from the web site.

Thank you in advance for your expert advice.