My site (running D7) is divided into four sections to organise its content. This is implemented via a taxonomy vocabulary, and my main menu lists each term in this vocabulary. So when a user clicks a main menu item, it is highlighted and all articles in that section (nodes with that term) are shown. Brilliant.
But, when a user then clicks one of these articles to view the whole thing, the main menu item is no longer highlighted. Although the article does display the taxonomy term, I would very much like to keep the main menu item highlighted so it's obvious to the user which section she's browsing.
How can I achieve this?
Edit: Clarified that I'm using Drupal v7. Also, managing the menu itself is not a goal (that's easy enough), the goal is only keeping the menu highlighted when viewing an article node as opposed to the term node.