ExtJS的导航栏(Accordion TreePanel)

http://lym6520.iteye.com/blog/337499

http://blog.csdn.net/leecho571/article/details/6557057 

http://www.cnblogs.com/qianxudetianxia/archive/2008/08/21/1268253.html 

更多关于ExtJS布局

http://www.cnblogs.com/legendxian/archive/2010/01/19/1651008.html 

http://www.erpwin.com/images/product/crm-client.jpg