function sendMail(recipient) {

  var email = 'info';

  if (recipient=='mb') {
    email = 'm.boomhuis';
  } else if (recipient=='rd') {
    email = 'r.dirschauer';
  } else if (recipient=='rp') {
    email = 'r.paps';  
  }

  document.location.href = 'mailto:' + email + '@hansekontor-makler.de';


}