function Show(id)
{
  var item = null;

  if (document.getElementById) item = document.getElementById(id);
  else if (document.all) item = document.all[id];
  else if (document.layers) item = document.layers[id];

  if (item) if (item.style) item.style.display = "";
}

function Hide(id)
{
    var item = null;

  if (document.getElementById) item = document.getElementById(id);
  else if (document.all) item = document.all[id];
  else if (document.layers) item = document.layers[id];

  if (item) if (item.style) item.style.display = "none";
}

function idz_do_strony(id, link) {
  advAJAX.get({
              url : link,
              onSuccess : function(obj) { document.getElementById(id).innerHTML = obj.responseText; }
            });
}