function setMailtoLinks()
{
  if (!document.getElementsByTagName) { return; }
  ar_spans = document.getElementsByTagName('span');
  for (i=0; i<ar_spans.length; i++)
  {
    if (ar_spans[i].className == 'mailto')
    {
      ex = ar_spans[i].firstChild.nodeValue.split(',');
      tmp = document.createElement('a');
      tmp.href = 'mailto:' + ex[1] + '@' + ex[0];
      tmp.appendChild(document.createTextNode(ex[2] ? ex[2] : ex[1] + '@' + ex[0]));
      ar_spans[i].replaceChild(tmp, ar_spans[i].firstChild);
    }
  }
}