Need to tab between textfields using enter key

I’m developing a Flash course that’s supposed to simulate a software.

In this software the user “tabs” between fields using the enter key.

I’ve succeeded to set focus on the first textfield in my Flash file and also managed to jump to next textfield using the enter key. My problem is that I’m not capable going to the third field and so on using the enter key.

Does anyone has a solution?

The code I use is this:

FieldTab = new Object();
FieldTab.onKeyDown = function(){
if (Key.isDown(Key.ENTER) && eval(Selection.getFocus(“dkonto1a_txt”))){