It has to be some bonehead move on my part, like a " instead of a ' or something... here are 2 very minimal html docs, with the suggested jQuery and JS options, and I can't seem to get either of them to work and add a class to the body tag.
Javascript EX:
http://www.lmktechnologies.com/TEST/...ipt-test1.html
JQUERY EX:
http://www.lmktechnologies.com/TEST/jquery-test1.html
Hopefully this helps us narrow it down... my brain is broken...