UI scrollbar - and move function?

I'm using the scrollbar to trigger a function that controls some mcs.

I found a variable in the scrollbar that lets me know when the bar is being moved:

_level0.scrollbar.isScrolling (is either true or false)

Now I can't find the variable that tells me when either the up or the down button is being pressed?
Any clues out there?

Double-click the scrollbar component in your movie's library, view its actions.

Find this function definition at line 191 in the AS:

Code:

---

FScrollBarClass.prototype.scrollIt = function (inc, mode)

---

Before the ending curly brace, insert the following:

Code:

---

_root.scrolling=true;

---

Now find this function definition at line 264:

Code:

---

FScrollBarClass.prototype.stopScrolling = function()

---

Before the ending curly brace, insert the following;

Code:

---

_root.scrolling=false;

---

You will now be able to reference your newly created _root.scrolling variable in your scripts.

There may be a more elegant way, but this works.