function clck() {
  var dds = document.getElementById('rightsquare').getElementsByTagName('DD');
  var tdds = this.parentNode.parentNode.getElementsByTagName('DD');
  var origclass = tdds[0].className;
  for (var j=0; j<dds.length; j++) {
    dds[j].className = 'hidden';
    dds[j].parentNode.getElementsByTagName('IMG')[0].src = '/images/more_arrow1.gif';
  }
  for (var j=0; j<tdds.length; j++) {
    if (origclass == 'hidden') {
      tdds[j].className = 'shown';
      this.parentNode.getElementsByTagName('IMG')[0].src = '/images/down_arrow1.gif';
    }
  }
}
function loadlinks() {
  var lnks = document.getElementById('rightsquare').getElementsByTagName('DT');
  for (var i=0; i<lnks.length; i++) {
    lnks[i].getElementsByTagName('A')[0].onclick = clck;
    lnks[i].getElementsByTagName('A')[1].onclick = clck;
  }
}
window.onload = loadlinks;