function overlayoutclick(e){ //modified from script at: http://www.quirksmode.org/js/events_properties.html#target
  var theId
  var targ;
  if (!e) var e = window.event;
  if (e.target) targ = e.target;
  else if (e.srcElement) targ = e.srcElement;
  if (targ.nodeType == 3) targ = targ.parentNode; //safari bug
  if ((targ)&&(targ.id=="back")) window.location=rooturl;
}

  function changeText(text) {
    document.getElementById('overtext').innerHTML=text;
  }

  function clearText() {
    document.getElementById('overtext').innerHTML=" ";
  }