<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" > <mx:Script> public var myMenuData:Array = [ { label:'New', children:[ {label:'File'}, {label:'Open'}, {label:'Save'}] }, {label:'Edit', children:[ {label:'Cut'}, {label:'Paste'}, {label:'Copy'}] } ]; </mx:Script> </mx:Application>