function action_add() { $crsid = cm_get_param('crsid', 0); if ($classes = cmclass_get_listing('startdate', 'ASC', 0, 0, '', '', $crsid, true)) { $table = new addclasstable($classes); $table->print_table(); } else { print_heading(get_string('no_classes_available', 'block_curr_admin')); } }