On http://www.regiodevallei.sohosted.com I'm working on a wordpress website. They wanted three columns with posts, which I managed with 3 categories (eg. kol_mid - to place the post in the middle column). This cats are ruled out in the menu left in de sidebar. This menu is folding out with Fold Categorie List.
Further there are 5 main categories with all subcategories with the same name(algemeen, nieuws and projects).
When i click on the homepage on a posts to see the post on a single page - always the subcategorie of the maincategorie Economie is active, also when the post is posted in another maincategory.
Can someone tell me what i'm doing wrong?