Scripted movement (like a ribbon)

Hi all! Hope you can give me a nudge in the right direction here. I’m looking into making a neat little action for a website. They have 5 coloured ribbons in their logo, which are horizontal across the screen .What I would like to acheive initially is to see the ribbons moving (floating) slowly in the logo.

I am familiar with scripting functions to move / scale movie clips, but I don’t really know where to start with this thing. I have looked through some tutorials with scripted motion but they’re all a bit naff and not really geared to what i want to do, if you have any pointers / tutorials you can link to then i’d be immensely grateful.

Cheers,

James