Single display line rotating/scroll text display.

[acctman]

I'm looking for a script that will display text one line at a time. Example would be

Rule 1: something blah blah... <display 3-5 secs>
then roll up or clear and display
Rule 2: something blah blah... <display 3-5 secs>

and keep repeating for all the rules. I have limited space so I need to display 1 line at a time.

Thanks in advance.

[mburt]

<input id="foo" type="text">
<script type="text/javascript">
$ = function(e) {return document.getElementById(e);};
var display = function(el) {
  var msg = ["Message 1", "Message 2", "Message 3", "Message 4"],
    e = $(el), c = "count",
    timer = 3500;
  if (typeof e[c] == "undefined") {
    e[c] = -1;
  };
  if (e[c] > msg.length-2) {
    e[c] = 0;
  } else {
    ++e[c];
  };
  e["value"] = msg[e[c]];
  var t = setTimeout(function() {display(el);}, timer);
};
display("foo");
</script>