[Typo3] How can I develop Farsi language for TYPO3?

[M Okhovvat]

Hi
There are many languages in TYPO3 , but there isn't Farsi (Persian) 
language.
I'd like to develop Farsi language for TYPO3 , but how? What I've to do?
 I'm a professional J2EE and PHP programmer and I've learnt TypoScript a 
little.
I'd like to have part in some projects for developing TYPO3 related to my 
profession what 
can I do?
 Best regards.