name; } if (is_subclass_of($unit, "BoltSet")) { foreach ($unit->units as $u) { $n = units_of_type($u); $names = array_merge($names, $n); } } return array_unique($names); } // show a menu of select units // function select_menu($top_unit) { echo ""; $names = units_of_type($top_unit, "BoltSelect"); foreach ($names as $n) { echo " $n"; } echo ""; } // show a menu of exercise sets // function xset_menu($top_units) { echo ""; $names = units_of_type($top_unit, "BoltExSet"); foreach ($names as $n) { echo " $n"; } echo ""; } function compare($select_name, $exset_name) { } //if (get_str('submit', true)) { // show_results(); //} else { // show_form(); //} ?>