please help me out with this

ok this script was in a scroller tutorial at flashkit.com which is list below and this script is explained but i still dont understand exactly what it does... how it works.... its purpose? so i would like one of you flash gurus to explain it to me...
onClipEvent (load){
daTextBox = "Insert text here";
scrolling = 0;
frameCounter = 1;
speedFactor = 3;
}
onClipEvent (enterFrame){
if( frameCounter % speedFactor == 0){
if( scrolling == "up" && daTextBox.scroll > 1){
daTextBox.scroll--;
}
else if( scrolling == "down" && daTextBox.scroll < daTextBox.maxscroll){
daTextBox.scroll++;
}
frameCounter = 0;
}
frameCounter++;
}

http://www.flashkit.com/tutorials/Interactivity/Useability/ActionSc-Patrick_-629/more4.shtml

good god, it's so complex. Go to my site, go through the news text box on the right, the actual file for the scroller is linked in there, around halfway down, it's much more easier to use than this. (http://cyblingdesign.com) Good luck.

im thought all scroll bars where that hard but thakfully i guess not anyways i cant find your link you just post it?

Because it's flash, i can't link to it....

go to my site, scroll down to 'News 28/4/02