Internationalization of JRE messages

I developed a applet and digitally signed its jar. When the user open the applet url, shows up an english warning security message asking if the user wants to install and run it. This message I think is from the JRE. Is there any way of configuring this message to show up in brazilian portuguese ?

[305 byte] By [andradema] at [2007-11-27 6:09:38]