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