NoFollow jQuery Links – WordPress plugin Free download
NoFollow jQuery Links
Description
A simple TinyMCE Plugin to add a java-script link solution for linking pages together in order to stop search engines crawlers go through those pages and keep them just in the related pages of the same topic.
Screenshots

Installation
This section describes how to install the plugin and get it working.
e.g.
Upload the plugin files to the /wp-content/plugins/plugin-name
directory, or install the plugin through the WordPress plugins screen directly.
Activate the plugin through the ‘Plugins’ screen in WordPress
Use the new JS buttons in the TinyMCE toolbar to add jQuery links to any text.
FAQ
Will the jquery links have a nofollow attribute or similar for the search crawlers?
No. These links are expected to be completely hidden from the SE crawlers so that no link juice is leaked on to the pages/posts referred to from these links.