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Contrary to Theo I'd say: A. Positive Pretty sure Google has been following js open links for many years now. I'd be reasonably confident of saying even if you did something tricky like href="javascript:CleverFunction('http://example.com')" and CleverFunction was designed to add nofollow/ open in new window, that Google would still be able to follow it from the url within the href. You could quite easily set up a test for a page that only has a link like this pointing to it and see if it gets indexed. The only thing I might not be totally sure of is if it passes juice, but I think as of mid 2009 it does (as I'm sure Google no longer endorsed js links as a method for preserving link juice).