js核心知识

http://blog.csdn.net/funneies/article/details/7556334

http://zhidao.baidu.com/link?url=bfb-F5L7yJ1gGkbNVjtmJQ-mc5qWgLkzf6em6HQlr-PKu4uRVOuUFgzKLAEu_8fFAbDJk-1MCw1cC5GWMOxvokJoqWtNJvVpAo5wFMSTjji