Object and Mouse Movements on Limited Inverse

Question

I am attempting to make a more interesting background for a
page that involves several objects moving slightly,
depending on the 'x' coordinate of the mouse. I am trying to
limit the movement to 100 pixels at the inverse of the mouse's 'x'
coordinate. For clarity, I'll stick to just one object (object_mc)
At the moment, I've been tossing around this basic code,
which is hardly representative of what I'm trying to do, however
I've never done anything regarding this movement.
mouseInterval = setInterval (x_inverse, 10);
function x_inverse () {
object_mc._x = Math.round(
/// I've been plugging away and am starting to believe I need to
use some sort of limiting function regarding _root._xmouse ///
The idea is that when the mouse is at x=0, object_mc is at
x=100 and vice versa. These coordinates would also need to be
flexible in that when the mouse is from x=1-500, 'object_mc' is
from x=500-400. So, while the range for the '_root._xmouse' is the
entire canvas, the range for the 'object_mc' would be limited to a
defined area (such as 400-500).
Any help would be appreciated, and I'd be more than willing
to follow a tutorial on my own if pointed in the right direction.
Thanks !

Answer 1

the function below will return your movieclip's _x property
given the movieclip's range and mouse's range: