Flash - Make A Dynamic Text Field Increase In Increments Of 1 If The User Hovers At The Upper Half Of The Screen?

If the counter reaches 350 and I move my mouse down now it hops on over to 250. I just want it to start counting down. I.e. 349, 348, 347 and so on. What do I need to change?

//Function
function countUp(e:TimerEvent):void{
if (mouseY < 180)
{

[code]...

EDIT: What do I need to write in AS3 to make a dynamic text field increase in increments of 1 if the user hovers at the upper half of the screen, and decrease in increments of 1 if the user hovers at the lower half of the screen?Purpose, it isn't a game.

What I have right now isn't actually doing any of those things, I've just been mucking about trying to get all the masks working and they finally are.

I've included the code to offer as much information as possible about my specific project. There is also a few more lines that changes the colour of the dial when the user rolls over the specific coloured bars. I can post that as well if it helps.

To clarify the scene, the arrow part of the dial tracks the user's mouse. Always pointing towards it. The bars, when rolled over changes the colour of said dial. The "73M" is static, as well is "POINTS" but the 380 value is dynamic. It is that string I need to affect.

If anything is unclear please feel free to ask, I've been at this all night so there is a chance I'm so into it that I can't see straight.

[code]