echo $ws->Categories($db, $_POST);
break;
case "addCategory":
echo $ws->AddCategory($db, $_POST);
break;
case "moveCategory":
echo $ws->MoveCategory($db, $_POST);
break;
case "deleteCategory":
echo $ws->DeleteCategory($db, $_POST['idx']);
break;
case "saveCategory":
echo $ws->SaveCategory($db, $_POST);
break;
case "newItem":
echo $ws->NewItemForm($db);
break;
case "loadItemsByType":
echo $ws->LoadItemsByType($_POST['type']);
break;
case "itemForm":
echo $ws->ItemForm($_GET['itemCategory'], $_GET['itemType'], $_GET['itemIndex'], $db);
break;
case "itemEditForm":
echo $ws->ItemEditForm($_GET['idx'], $db);
break;
case "saveItem":
echo $ws->SaveNewItem($db, $_POST);
break;
case "saveEditedItem":
echo $ws->SaveExistingItem($db, $_POST);
