Changing image color in flash, actionscript

Hello all,

Need some help with actionscript.
I have an image of a single color, lets say a dog.

I want to change the color of the dog dynamically, selecting the color from a panel of colors.

The idea is that i found out a lot of examples changing the color of a square for example, but this is quite simple, as soon there is simple to transform a square in movie clip.
So, the main problem is how to transform the dog in a movie clip. Could be the image loaded dynamically, so, if i have many images, i will not be forced to have a flash file for each image?

If you have a simple example, could be very helpful.

Thank you!