How to animate xml flash menu?

Hi Peeps!

Can someone provide me some direction as to what would be the best way to animate this XML Flash menu?

  • i’ll be needing this to be horizontal instead of vertical
  • 3 tiers/levels
  • 2nd and 3rd tiers will animate smoothly up and down.

not sure if AS is the best way, if so what needs to be put in and where?
or if movie clips should just be used…