var lastOpened = null;

function checkCats(id) {
  if($('catg_'+id).get('checked') == true)
  { 
      $$('.subcat_'+id).each(function(el) {
                 el.set("checked", true);
     });
  } else {
      $$('.subcat_'+id).each(function(el) {
                 el.set("checked", false);
     });
  }
}

function displaySubcatWindow(id) {
    
    if(lastOpened != null) {
      lastOpened.setStyle("display", "none");
    }
    
    $('subcat_'+id).setStyle("display", "block");
    $('subcat_'+id).setPosition($('ca_lispace').getPosition());
    lastOpened = $('subcat_'+id);
}

function displaySelectedCategories(around) {
    var url_page = "";
    var tmp_name = "";
    var tmp_arr;
    $$('.ctginput').each(function(el) {
        if(el.checked) {
            tmp_name = el.get('name');
            tmp_arr = tmp_name.split('_');
            url_page += tmp_arr[1]+";"
        }
    });
    if(url_page != "") {
        window.location = 'http://www.cestovatko.cz/map.php/listing/lokace/zdarske-vrchy?around='+around+'&cats='+url_page;
    } else {
        alert("Musíte vybrat alespoň jednu kategorii.")
    }
}