I have some irrelevant keywords high up in my Google Webmasters Tools Keywords list.  Unfortunately it's stuff that needs to be on the site.  E.g. I'm getting words like log (from log-in), copyright, privacy.I heard in the past that you could apply class=robots-nocontent, but I don't think google uses this (and poss yahoo doesn't either with the bing change).What, if anything can be done to downplay these keywords?
SEO - Reducing significance of irrelevant kewords
seo;google