On one of our DNN sites, there are specific areas covered by the menu bar that we don't want search engine crawlers on. We have 2 questions about how the menu bar is set up in dotnetnuke

1. Can we tweak the template so rel="nofollow" attribute can be added to specific tabs in the menu bar?
2. If so, then can we also create two menu bars that look identical -
   1. First goes on the homepage that has the couple links nofollowed like I mentioned.
   2. Second menu bar is used on the remaining pages of the site, and every link in the menu bar is nofollowed.

It's a bit complex, but we're hoping someone can point us in the right direction (if it's possible) as to what file(s) we're supposed to be modding.

thanks,

The menu will already render different output depending on wheter the site is being crawled or not.  When crawled, the menu spits out html for the entire menu.  This is what you want to modify.  My suggestion would be to update the solpartmenunavigationprovider code (if you want to update the core), or create a new navigation provider similar to the solpartmenunavigationprovider (see this doc for more details).  Inside it, you would detect if a crawler is searching the site (System.Web.HttpContext.Current.Request.Browser.Crawler) and in that case simply update the node to not have the href.  Obviously if you wanted to make further modifications to the core and solpart to use the rel="nofollow" you can, though the more changes you make to core code, the harder it is to update.