function usdTTY(id, text) {
  e = document.getElementById(id);
  if(e) {
    if(text.length>0) {
      e.firstChild.nodeValue += text.charAt(0);
      s = text.substring(1, text.length);
      window.setTimeout("usdTTY('" + id + "', '" + s + "')", 50);
    }
  }
}
function usdTTYInit(id, start) {
  if(document.usdTTYOff) return 0;
  e = document.getElementById(id);
  if(e) {
    s = e.firstChild.nodeValue;
    e.firstChild.nodeValue = '';
    window.setTimeout("usdTTY('" + id + "', '" + s + "')", start);
  }
}