Easy ? - changing scrolling text speed

[font=Arial Unicode MS][size=2]Easy question here for you. I want to slow down a scroll bar that I have. It’s simply two buttons, up and down, that control a dynamic text field called information. I have two mcs, one called scrollDown and the other scrollUp. Here are the actions in those clips. [/size][/font]
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[font=Arial Unicode MS][size=2]On frame 1 - stop[/size][/font]
[font=Arial Unicode MS][size=2]On frame 2 - _root.information.scroll ++;[/size][/font]
[font=Arial Unicode MS][size=2]On frame 3 - gotoAndPlay(2);[/size][/font]
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[font=Arial Unicode MS][size=2]I then have a mc called arrows that contain the buttons and on the respective up/down buttons I have…[/size][/font]
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[font=Arial Unicode MS][size=2]on (rollOver) {
_root.scrollDown.play();
}
on (rollOut) {
_root.scrollDown.stop();
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[font=Arial Unicode MS][size=2]I tried saying this, _root.information.scroll += 0.5 but that did not work. [/size][/font]
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[font=Arial Unicode MS][size=2]Can you help me? [/size][/font]
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[font=Arial Unicode MS][size=2]Thanks, [/size][/font]
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[font=Arial Unicode MS][size=2]Justin [/size][/font]