Set focus on textfield in Flex3

In Action Script:
login.setFocus();

In HTML:

< body onload="setFlexAppFocus();">

   

2. detect press Enter

   

   /**
   * Handle login when user press enter on password
   */
   private function enterListener(e:KeyboardEvent):void {
       if(e.keyCode == Keyboard.ENTER) {
           enter(); // check login function
       }
   }