function find_card_clicked() {
  var e1 = document.getElementById('dd_ecard_cat');
  if( e1) e1.value = trim(e1.value,'');
  if( e1.value == '') {
    alert('Please select an occasion');
    return;
  }
  var e2 = document.getElementById('dd_ecard_subcat');
  if( e2) e2.value = trim(e2.value,'');
  var url = '';
  if( e2.value != '') {
    url = encodeURI(e1.value+'|'+e2.value);
    window.location = "/ecard/cards.php?"+url;
  } else {
    url = encodeURI(e1.value);
    window.location = "/ecard/category.php?"+url;
  }
}

function dd_ecard_cat_changed(e) {
  var e2 = document.getElementById('dd_ecard_subcat');
  if( !e2) return;
  if( e.value == '') {
    e2.disabled = true;
  } else {
    e2.disabled = false;
    ajax_request('', 'POST', '/ecard/ajax_subcats.php', 'subcat_div', 'dd_ecard_cat', 60, 'Requesting new data...', 0);
  }
}