Switch Statements - Switching on a Input Textbox

Hello,

I have 3 input text boxes and I want to display a different part of an XML file to display (in a different textbox) depending on what input textbox has been selected.

I have achieved this by using 3 separate functions and it works fine but I want to use a switch statement within one function to achieve the same result.  So the user will click on a textbox which calls the function and switches depending on the textbox to load the text from an XML file.

I am reletively new to AS3 and Flash in general so I don't know if using a switch statment in this way is even possible to do.

Code looks like this:

var req:URLRequest = new URLRequest("Manual.xml");

var loader:URLLoader = new URLLoader();

var manual:XML;

euProduct1_txt.addEventListener(MouseEvent.CLICK, loadText);

euProduct2_txt.addEventListener(MouseEvent.CLICK, loadText);

euProduct3_txt.addEventListener(MouseEvent.CLICK, loadText);

function loadText(evt:MouseEvent):void

{

     switch(MouseEvent.CLICK)

     {

          case euProduct1_txt:

               manual = new XML(loader.data);

               external_txt.text = manual.sales_area[0].info;

               manualTitle_txt.text = manual.sales_area[0].name;

          break;

          case euProduct2_txt  etc etc....

     }

}

loader.addEventListener(Event.COMPLETE, loadText);

loader.load(req);

The parts I'm struggling with are what goes in the switch condition and each case statement.

Thanks