Adding elements to TabBar dynamically

[al77_t]

Hi, 

Not sure why the code below doesn't work, i.e. it doesn't create a new Tab.

Many thanks,
Alex

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.macromedia.com/2003/mxml";>
<mx:Script>
<![CDATA[

function addIt()
{
mytab.dataProvider.addItem({label:"test",data:"test"});
mytab.draw();
}

]]>

</mx:Script>

<mx:TabBar id="mytab" />
<mx:Button label="click me" click="addIt()"/>
</mx:Application>