function tfpimport_show_loading (x) {
	document.getElementById(x).style.display = 'inline';
}

function tfpimport_show_subcategories_inputs (rss_id) {
	var selected = "cat_id[" + rss_id + "]";
	//alert('show: ' + selected);

  	var mysack = new sack("/wp-admin/admin-ajax.php");
  	//mysack.execute = 1;
  	mysack.element = "subcategory_id[" + rss_id + "]";
  	mysack.method = 'POST';
  	mysack.setVar ("action", "tfpimport_show_subcategories_inputs");
	var indice = document.getElementById(selected).selectedIndex;
	var valor  = document.getElementById(selected).options[indice].value;
  	mysack.setVar ("cat_id", valor);
  	mysack.setVar ("rss_id", rss_id);

	//alert('valor->category_type: ' + valor);

  	mysack.encVar ("cookie", document.cookie, false);
  	mysack.onError = function() { alert('Ajax error show_source') };
  	mysack.runAJAX();
  	return true;
}