Floating Button With Random Movement

[daddy]

Hello all. I need help with this floating button thing. What I would like is for a button to appear (fade in) on the stage and then randomly float around slowly and of course it would bounce off the x and y axis. I would like to achieve this with actionscript alone and have more than one button floating (it's a links page so each button is a link)

Any ideas folks? Thanks

peace out,
daddy