Alpha tween help

Good day all. I’m after some code for an alpha tween that I can attach to a MC it starts at 100% then fades to 0% stays at 0% for a bit (5 seconds) then fades back to 100%. It will go onto a about 30 small squares 10x10 that cover an image. I don’t need the squares to be placed with action script as they are all in the places they need to be.

Can anyone help?

Many thanks “satrop”