Example: Look at the status bar on the bottom of the page.

Code:

<SCRIPT LANGUAGE="JavaScript"> 
var count=0
  function statusscroll() {
    if (count == 0) {
      message="These words will scroll across the bottom.                           You can leave spaces between the thoughts.                                                               See?  Pretty cool.  It can keep going.                                                                  You just have to put in a lot of spaces.                                                                      You can make really long sentences that will keep scrolling for a long time.  There is no guarantee that anyone will ever read what you've written, because this is really a tedious way to give someone a message.  I see that you're beginning to understand what I mean.  This is getting excessive.  Very bad...         Horribly bad......                                ...and so it goes                                                                Anything else interest you?  Probably not. ";
      message="                                                                                                                                      "+ message;
    }
    count = 1
    if (message.length == 0) { count = 0 }
    message=message.substring(1,message.length)
    self.status=message
    setTimeout("statusscroll()",90)
  }


</SCRIPT>

And then in the body tag:
<BODY onLoad="statusscroll()">