function kalendarzyk(dt,dtf) {
  document.getElementById('kalendarzyk_ladowanie').style.display='block';  
  advAJAX.get({url: 'kalendarz-' + dt + '-'+ dtf, onSuccess: function(obj) { document.getElementById('kalendarzyk').innerHTML = obj.responseText;  document.getElementById('kalendarzyk_ladowanie').style.display='none'; }});			     
}
function wydarzenia_pokaz(id) {
  var elements = document.getElementsByTagName('div');
  for(key in elements) {    
    if(elements[key].className == 'wydarzenia_content_div') {
      if(elements[key].id == 'wcontent' + id)
      elements[key].style.display='block';
      else
      elements[key].style.display='none';
    }     
  }
}