rem: canDestroy:       function canDestroy(prompt) { return false; }, 
add: optgroupObject.prototype.canDestroy = function canDestroy(prompt) { return !this.element.firstChild; /*return !this.element.firstChild && (!prompt || ConfirmWithTitle(GetString("DeleteOptGroup"), GetString("DeleteOptGroupMsg"), GetString("DeleteOptGroup"))); */ }; 
context:     canDestroy:       function canDestroy(prompt)    {      return false;    },
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/d38a0937d9c93a0a9d913e2ac781e4328bb8cc73/EdSelectProps.js/buggy/editor/ui/dialogs/content/EdSelectProps.js