How do you remove stuff in flex?

[bluemagica]

Sorry if this is already mentioned somewhere....but this is my first time using flex, and I am kindof confused on how to remove stuff.
Say I use <mx:Panel title="test panel"> </mx:Panel> to add a panel, alongwith some textfields and such to create form.....now how do I remove all this entirely and create something new like a tabbed navigator?

[ybanshee007]

look at help for : removeChild