How to convert links to NoFollow ?

[deadlychaos25]

I have one section where my all users posts cool websites
I want to make that links Nofollow for google as i don't need to share my PR with Them :)
So is there is any solution for this ?
Please help.
Thanks in advance !!

[SEOvB]

in your headinclude template use a if condtional for forumid then use the meta tag robots nofollow then close the if conditional.