// JavaScript Document
function popup(){
  var Nieuwscherm;
  Nieuwscherm =window.open("/agenda.php","agenda_up","toolbar=no,location=no,scrollbars=no,status=no,menubar=no,resizable=yes,width=750px,height=605px");
	Nieuwscherm.focus();
}

function confirmLink(theLink, question, id_nummer)
{
  var is_confirmed = confirm(question);
  if (is_confirmed) {
    theLink.href += id_nummer;
  }

  return is_confirmed;
}