How to use HBox and VBox with States

[SiHoop]

I'm working on an application that uses a series of states to display
information in DataGrids and Panels. I want all of the information panels to be
placed next to each other horizontally, but to be centered on the screen. Can I
use VBox or HBox to set up my screens to achieve this effect?

[Greg Lafrance]

I hope I'm not missing something here, seems too easy:

<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
horizontalAlign="center" verticalAlign="middle">
<mx:HBox>
<mx:Panel label="Panel One">
<mx:TextArea text="Panel One - Text One"/>
<mx:TextArea text="Panel One - Text Two"/>
</mx:Panel>
<mx:Panel label="Panel Two">
<mx:TextArea text="Panel Two - Text One"/>
<mx:TextArea text="Panel Two - Text Two"/>
</mx:Panel>
<mx:Panel label="Panel Three">
<mx:TextArea text="Panel Three - Text One"/>
<mx:TextArea text="Panel Three - Text Two"/>
</mx:Panel>
</mx:HBox>
</mx:Application>