/*
 * javascript pre vyhladavanie
 *
 */

var visibleSubselect;

function setVisibleSubselect(id) {
  visibleSubselect = id;
}

function displaySubselect(id) {
  document.getElementById('subselect-'+visibleSubselect).style.display = 'none';
  document.getElementById('subselect-'+visibleSubselect).disabled = true;
  document.getElementById('subselect-'+id).style.display = 'block';
  document.getElementById('subselect-'+id).name = 'okres';
  if (id != 0) document.getElementById('subselect-'+id).disabled = false;
  setVisibleSubselect(id);
}