function writeaddress4()
  {
  var address = "infoapestaartjeroutpresdingetjenl";
  address = address.replace(/apestaartje/g, "@");
  address = address.replace(/hyphen/g, "-");
  address = address.replace(/dingetje/g, ".");
  document.write('<a class="hdr" href="mailto:'+address+'">&#105;&#110;&#102;&#111;&#064;&#114;&#111;&#117;&#116;&#112;&#114;&#101;&#115;&#046;&#110;&#108;</a>');
  }