function ShowWhoIs(id,lang) {

  top.whoIsWindow = window.open('http://people.mech.kuleuven.be/staff/'+lang+'/whois.php?decorator=popup&id='+id,'whois','top=100,left=100,toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=yes,width=600,height=350');
  top.whoIsWindow.focus();
}

function closeWhoIs() {
  top.whoIsWindow.close();
  top.whoIsWindow = '';
}