ActionScript 3.0 :: Record The Mouse's Position On Stage?

I want to record the mouse's position on stage on entering the stage with out having to move the mouse.

In example:

I want to have an event occur only if the mouse Y position is greater than 200 when entering the stage.

The only way i know to do is is setting up a MOUSE_MOVE type, mouse event.

here is my code:

var Timer_Down2:Timer = new Timer(10000)
stage.addEventListener(Event.ENTER_FRAME, slider_down);
function slider_down(event):void{

[Code].....