Does anyone know how to repel mist with mouse using AS3?

Hi,

I am making an animation where i would like the mouse to repel mist as the user moves it around the screen.

I am new to AS3 - does anyone know how this might be coded?

Ive been searching online but cant find the answer, if its not to complex i would like it to look realistic so the mouse penetrates the mist rather than the mist bouncing off it.

Thanks a lot,

Kira