I have a question on first link priority and using nofollow to force Google through keyword links. I have a site where the top nav contains a Jscript drop down box of sub categories i.e.
Top Nav - Dog
Sub Categories - Dog Training, Dog Walking, Dog Washing
It's a roll over. This means the first link Google crawls is through one word links i.e. Training, Walking, Washing.
I know this is a Jscript menu, so my questions are:
1. On each page I have proper keyword links to the different pages i.e. "dog training" etc. Is it worth nofollowing the links in the Jscript menu to ensure only keyword rich links are followed OR should I just trust Google is not crawling links in the Jscript nav.
2. In general, is the use of nofollow in this way ok i.e. with the recent announcement by Google about PR just disappearing, is it still worth nofollowing navigation links to ensure the first link crawled is keyword rich ?