Changing colours using Actionscript.

I am starting to learn AS2.0. Can someone show me how to change a colour in a movie clip via Actionscript? For instance, say the clip starts off red and I want it to change to blue then green and finally red again? How would I do that?
I really want to learn this so any help is much appreciated.

here is a link that should help you. Download the BitmapData class tut (1st one)

Thanks. This colour picker tutorial certainly looks informative but it's going to take a while to learn. Ideally, I would like to have a movie clip whose background colour fades continuously through the spectrum and this has set me on the right course. Any more advice on achieving this is most welcome though.

will have you a sample later

silentweed posted this in another forum - it should do what you want.

have a look at colorshifter application at http://www.braingiants.com/ for an example of background color fades

Thanks, wattsup. That's a very cool site. I'm getting closer now to what I want. I just have to figure how to get the colours to change by themselves, without interaction.
That is, a white stage with a small movie clip on it with the m_c's colours fading through the spectrum, perhaps randomly.

maybe use setInterval

I'll try set interval but it's gonna take a while. This is more involved than I first
thought. Thanks for helping.

Haven't checked out others help, but you should definitely use the setRGB function. Paste this is in first frame of your flash movie.

// *************************** //
// MovieClip.setRGB() method //
//this is a built in function which allows us to set the color of the lots from the text file.

MovieClip.prototype.setRGB = function(newColor) {
(new Color(this)).setRGB(newColor);
} // end MovieClip.setRGB()

// *************************** //

Then you would type something like this:

_root.map.lot1bg.setRGB(_root.lotInfo.lot1color);

where _root.map.lot1bg is the path of the movie clip who's bg you are changing, and lot1color is just a variable I set in an external document and imported.

I think you can then use the new built in mx transition tweens to swap between colors, and you can use the parameter that allows you to run a function when the tween is done (I forget what it is called - just look up mx.transitions and it will explain) - that way you could set up a repeating function. I wouldn't advise using setInterval here - that will get messy, and slow things down for no reason...let me know if you need more help and I could give you better details -

I am going to try this "setRGB" function but as I'm a shade green to AS, it's going to take me a while. I can't start till later on but do I have to create and import another file as per your lot1colour? Many thanks for your help.