rem: onSpace:          function onSpace() {}, 
add: optgroupObject.prototype.onSpace = function onSpace() { }; 
context:     onSpace:          function onSpace() {},
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/d38a0937d9c93a0a9d913e2ac781e4328bb8cc73/EdSelectProps.js/clean/editor/ui/dialogs/content/EdSelectProps.js