Help with two layer movement

Hello im working with flash mx and Im trying to make a header that has 3 layers one thats still 2 that moves very slowly left and and 3rd layer that moves right about a sec faster then layer two and i wanna make it exacly like the naviagtion on this page http://www.artdecoentertainment.com/index2.html#home
But with out navigation part … i want it to move on its own and loop over and over but be clean you know what i mean? but can anyone help me ive tried the tutorial on kirupa but it moves on rollover please help thnx in advanced:beer: and cheers