package {
    import flash.display.*;
    import flash.events.*;
    import flash.text.*;
  
    // Demonstrates how to handle focus events from a global 
    // point of reference. Colors text fields green when focused.
    public class @ax-actionscript-events-GlobalFocusSensor extends Sprite {
      public function @ax-actionscript-events-GlobalFocusSensor () {
        // Create text fields
        var field1:TextField = new TextField();
        field1.width      = 100;
        field1.height     = 30;
        field1.border     = true;
        field1.background = true;
        field1.type = TextFieldType.INPUT;
  
        var field2:TextField = new TextField();
        field2.width      = 100;
        field2.height     = 30;
        field2.y          = 50;
        field2.border     = true;
        field2.background = true;
        field2.type = TextFieldType.INPUT;
  
        // Add text fields to the display list
        addChild(field1);
        addChild(field2);
        
        // Register for FocusEvent.FOCUS_IN events
        stage.addEventListener(FocusEvent.FOCUS_IN, focusInListener);
      }
  
      // Handle all FocusEvent.FOCUS_IN events in this application
      private function focusInListener (e:FocusEvent):void {
        // Set the background color of the focused TextField object to green
        TextField(e.target).backgroundColor = 0xFF00FF00;
  
        // Set the background color of the TextField object that lost focus 
        // to white
        if (e.relatedObject is TextField) {
          TextField(e.relatedObject).backgroundColor = 0xFFFFFFFF;
        }
      }
    }
  }