[flexcoders] TabNavigator - reset to the first tab

[Flayoo]

Hi,
how can I set the tabIndex to 0, if the dataProvider changes ?

<mx:TabNavigator id="tab" width="600" height="300" >
<mx:Repeater id="itxt" dataProvider="{infodaten}" repeatEnd="init()">
<v:InfoTextzeile sprache="{itxt.currentItem.spr}" >
</v:InfoTextzeile>
</mx:Repeater>
</mx:TabNavigator>

I tried:

public function init ():void
{
tab.selectedIndex = 0
Log.Debug("Index "+ tab.selectedIndex);
}

But this doesn´t work because "tab.selectedIndex" is always "0"

Thanks,
Flayoo