Hello, I need to fix the height of the primary links, showing the li on differents columns in a group of 3. Example

Link1 >Link4 >Link7 Link2 >Link5 >Link8 Link3 >Link6

How can I do that? Thank's! Pol Maresma PolNetwork.com / Serveis d'Internet pol(a)polnetwork.com msn: marolijo