var
  msg = "Istituto Tecnico Commerciale Statale 'Francesco Ferrara'  -  Mazara del Vallo (TP)"
  delay = 100  
  startPos = 120
  timerID = null
  timerRunning = false
  pos = 0
  StartScrolling()
function StartScrolling(){
   StopTheClock()
   for (var i = 0; i < startPos; i++) msg = " " + msg
       DoTheScroll()}
function StopTheClock(){
   if (timerRunning)
      clearTimeout(timerID)
      timerRunning = false}
function DoTheScroll(){
   if (pos < msg.length)
      self.status = msg.substring(pos, msg.length);
   else pos=-1;
        ++pos
        timerRunning = true
        timerID = self.setTimeout("DoTheScroll()", delay)}