gistfile1.txt

global.copy = function(refObject) {
  var newObject;
  var descriptor;
  var properties;

  if (refObject.cloneNode) {
    newObject = refObject.cloneNode();
  }
  else {
    newObject = Object.create(Object.getPrototypeOf(refObject));
    properties = Object.getOwnPropertyNames(refObject);
    properties.forEach( function(property) {
      descriptor = Object.getOwnPropertyDescriptor(refObject, property);
      Object.defineProperty(newObject, property, descriptor)
    });
  }

  return newObject;
}