The "huruf jawa" or "hanacaraka" are the traditional Javanese alphabet. These examples are from a school poster I bought in Surakarta.

Try these links for more information about the Huruf Jawa:

http://www.christusrex.org/www1/pater/JPN-javanese-huruf.html
http://javanen.myweb.nl/Cultuur/HaNaCaRaKa/HurufJawa.htm
http://www.joglosemar.co.id/hanacaraka/hanacaraka.html
http://www.mastoni.com/carakan.htm
http://www.omniglot.com/writing/javanese.htm

Agfa|Monotype is supposed to have a Javanese font in their MT WorldType collection. (Their site is poorly designed; you may want to contact them directly if you want to purchase it.)