[flexcoders] How can I display the "ID" of my HTTPService in my FaultEvent?

[sailorsea21]

Hi everyone, how can I display the "ID" of my HTTPService in my 
FaultEvent? The following script doesn't work and I can't understand 
why.

private function get_fault(event:FaultEvent):void
{       
mx.controls.Alert.show(event.currentTarget.id + ".", 
event.fault.faultString + ":");                                 
}

event.currentTarget works but I would like to display the "ID".

Thanks.

David