function writeaddress()
  {
  var address = "infoapestaartjedierenartsenpraktijklemsterlanddingetjenl";
  address = address.replace(/apestaartje/g, "@");
  address = address.replace(/hyphen/g, "-");
  address = address.replace(/dingetje/g, ".");
  document.write('<a class="tekst" href="mailto:'+address+'">info@dierenartsenpraktijklemsterland.nl</a>');
  }