javascript闭包

 javascript闭包：

http://www.cnblogs.com/mrsunny/archive/2011/11/03/2233978.html

http://www.ruanyifeng.com/blog/2009/08/learning_javascript_closures.html

http://blog.csdn.net/jameswenblog/article/details/11787893

http://www.cnblogs.com/rubylouvre/archive/2009/08/21/1551270.html