上面是sina微薄的登录按钮，我是初学者，看不懂，为什么按“登录”就能进行登录，它是通过Form提交还是其它什么方法？
找了好多资料也没查到“node-type“是什么？
哪位大神能帮忙解答一下，万分感谢！
回复讨论(解决方案)
1.node-type自定义标签.
2.无表单提交.
谢谢webyellow！
那为什么按“登录”就能进行登录。node-type为自定义标签，也没有相应的事件，为什么能提交呢？
有相关的学习资料能介绍一下吗？
AJAX加载啊.事件应该是click啊.
没有对应的事件,我看成没有对应的请求了.
吓一跳.
地址发来,我看看.
网址是：http://weibo.com/
请帮忙分析一下，谢谢！
他这有啥好分析的.
自己去看bilogin.js吧.
谢谢webyellow，因为初学，太多不懂。
你上图的工具是什么工具？
http://blog.csdn.net/auphiria/article/details/7926423
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