Drawing Board Help! Brush stroke, eraser, color

Hello, how’s it going?

I’m stuck in a rut as I’m not an actionscripter. For one of my classes I have to create something “fun”. So I am creating a drawing board. The question is, I have the ability to change the color, change a different brush stroke, but only stays black. But what I want it to do, is change the color of the brush stroke and still keep it that color until the user changes the color. The file is located here:


Thank you in advance!

P.S. I’ve searched the whole forum for a couple of days before I posted this. =)