var tid; 
var left;
function initLeft() {
  if (document.layers)
    left = document.marquee.left;
  else if (document.all)
    left = document.all.marquee.offsetLeft;
  else if (document.getElementById)
    left = document.getElementById('marquee').offsetLeft;
}
function moveLeft () {
  if (typeof left == 'undefined') 
    initLeft();
  left -= 3;
  if (document.layers)
    document.marquee.left = left;
  else if (document.all)
    document.all.marquee.style.pixelLeft = left;
  else if (document.getElementById)
    document.getElementById('marquee').style.left = left + 'px';
}
function moveRight () {
  if (typeof left == 'undefined') 
    initLeft();
  left += 3;
  if (document.layers)
    document.marquee.left = left;
  else if (document.all)
    document.all.marquee.style.pixelLeft = left;
  else if (document.getElementById)
    document.getElementById('marquee').style.left = left + 'px';
}