#		echo "cancel not set.\n"; exit;
 try {
     /*
      * Add to the table.
      */
     if (isset($_GET['add_row'])) {
         #print_r($_POST); exit;
         $id = $xml_db_page_manager->add($table, $_POST, $_FILES);
         $return_to_url->unset_get_variable('add_row');
         $return_to_url->set_get_variable('last_added_id', $id);
     }
     /*
      * Update the table.
      */
     if (isset($_GET['edit_id'])) {
         $xml_db_page_manager->update_by_id($table, $_GET['edit_id'], $_POST, $_FILES);
         $return_to_url->unset_get_variable('edit_id');
         $return_to_url->set_get_variable('last_edited_id', $_GET['edit_id']);
     }
     /*
      * Delete rows from the database.
      */
     if (isset($_GET['delete_id'])) {
         $xml_db_page_manager->delete_by_id($table, $_GET['delete_id']);
         $return_to_url->unset_get_variable('delete_id');
         $return_to_url->set_get_variable('last_deleted_id', $_GET['delete_id']);
     }
     if (isset($_GET['delete_all'])) {
         $xml_db_page_manager->delete_all($table);
         $return_to_url->unset_get_variable('delete_all');
         $return_to_url->set_get_variable('all_rows_deleted');