Forms and database character conversion

Hi,
We currently have a database setup to use a non-utf8 characters set, I believe it is set up for western european languages only. We now want to expand our database to include support for other languages such as arabic and japanese. To do this we would like to make a copy of our existing database and change the charecter set to UTF8.
We also have a Forms application currently using Forms 5 and due to be upgraded to 11g.
What sort of implications willl changing the database character set have for the existing Oracle Forms? What sort of changes if any will we need to make to the Forms in order to get them working with the new character set?
Thanks for your help.

hi
check out the following link i hope it helps u.
http://www.oracle.com/technology/tech/globalization/htdocs/nls_lang%20faq.htm
sarah

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