tourdeflexmodules/src/mx/states/StatesExample.mxml

<?xml version="1.0" ?>
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          http://www.apache.org/licenses/LICENSE-2.0

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      limitations under the License.
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<!-- Simple example to demonstrate the States class. -->
<mx:Module xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:mx="library://ns.adobe.com/flex/mx"
				paddingBottom="0" paddingTop="0" paddingLeft="0" paddingRight="0"
				height="100%" width="100%">

    <!-- Define one view state, in addition to the base state.-->
    <mx:states>
		<mx:State name="default" />
        <mx:State name="register" />
    </mx:states>

    <!-- Define a Panel container that defines the login form.-->
    <mx:Panel title="Login" title.register="Register" id="loginPanel" 
        		horizontalScrollPolicy="off" verticalScrollPolicy="off"	
				paddingBottom="10" paddingTop="10" paddingLeft="10" paddingRight="10"
				height="100%" width="100%">

        <mx:Text width="100%"
            text="Click the 'Need to Register?' link to change state. Click the 'Return to Login' link to return to the base state."/>

        <mx:Form id="loginForm">
            <mx:FormItem label="Username:">
                <mx:TextInput/>
            </mx:FormItem>
            <mx:FormItem label="Password:">
                <mx:TextInput/>
            </mx:FormItem>
			<mx:FormItem id="confirm" label="Confirm:" includeIn="register">
            	<mx:TextInput/>
             </mx:FormItem>
        </mx:Form>
        <mx:ControlBar>
            <mx:LinkButton id="registerLink"  label="Need to Register?"
                click="currentState='register'" excludeFrom="register"/>
			<mx:LinkButton id="loginLink" label="Return to Login" click="currentState='default'"
				includeIn="register" />
            <mx:Spacer width="100%" id="spacer1"/>
            <mx:Button label="Login" label.register="register" color.register="blue" id="loginButton" />
        </mx:ControlBar>
    </mx:Panel>
</mx:Module>