Getting the text cursor to automatically be in the "Message:" box?

[Gutspiller]

So that people can start typing after replying or starting a new thread, without having to click their mouse or hit tab to get the blinking text cursor in the box.

I don't think this would really be a hack so I didn't post it in requests. Somebody let me know how to do this or if I DO need to ask this in the request forum.

Any help on this subject would be greatly appreciated.

Thanks.