Flexlib 控件 http://code.google.com/p/flexlib/
http://code.google.com/p/flexlib/wiki/ComponentList
Flexlib
You should take a look at the SuperTabNavigator component from the FlexLib project:
If you don't want all of the tabs to have close buttons (I understand from the question that you don't) it looks like you could use the setClosePolicyForTab() method for specifying which tabs you want to have them.
