+ /**
+ * updates sort order in session variable
+ *
+ * this function is invoked by RPC and will sort the requested
+ * sort order in the session variable.
+ */
+ public function updateSortOrder($order)
+ {
+ if(isset($this->sort_orders[$order])) {
+ $_SESSION['sort_order'] = $order;
+ return "ok";
+ }
+
+ return "unkown error";
+
+ } // updateSortOrder()
+