0% to 100% Scale and Alpha on Rollover

I have 2 objects on stage.

a movie clip called btn1.

and another movie clip called icon1.

I would like to know how to script an action such that when the mouse is rolled over btn1, …two things happen…

first that icon1 scales from 0 to 100% of the size that it currently is.
and secondly that it’s alpha changes from 0 to 100% as it scales up.

That’s it.

To get an idea of the entire setup… there are basically sets of these btns and icons …
and I would like the icon to appear for each button in the fashion described above when the corresponding button is rolled over.

Thanks to anyone who can help.

Cheers.