Writing UTF-8 chars in Textfield As3

I have a textfiled (input type) which works with English lang. If I change to different locale in the system tray I am not able to write any text into the textfiled.

How can I enable this capabilty to the TextField or this is connected with locale/Language support in the swf?

In flash IDE, there is an embed button under textfield properties. Open that window and add character range and add the special character that you want to exist to the "also include these characters:" field.