file: Text file to display.
size: Size of Font to display.
speed: Speed of the scrolling.
bgcolor: BackGround color in hex value.
textcolor: Text color in hex value.
centered: boolean. true if the text has to be centered.

Here's the class and this file if you want to use this applet in your page scrollFile.zip
If you want the source, you can mail me

You can go to my home Page, you can see more applets there