Help with Scrolling Text in ActionScript2

Hi,
I am currently trying to set something up here with scrolling text (dynamic text.)
As of now I have text in a field and two graphical arrows (set as buttons) to push the text up or down. Each arrow has actionscript associated to it. For example, the up arrow contains the actionscript:

on (release) {
scrolltext.scroll -= 1;
}

Is it possible (through minimal actionscripting as I am really bad at it) to add script that would allow a user to either hold the mouse button down over an arrow (button) and have the text continue to scroll OR have the user move the mouse over the arrow (button) and have the text continously scroll? As of now, the user has to click the arrow everytime they want to scroll the text one line, and I would prefer another solution. Any help is GREATLY appreciated.
Thanks,
Jake