hello, the language in the nickname in jcow must to be in english, "from 4 to 18 characters, only 0-9,a-z", and i want to change it that people can write in our language(hebrew) how i can do it? what i need to change? thank you

Hey!

I would recommend to use the phonetic names. Example: أسامة بن محمد بن عوض بن لادن (Osama Bin Laden) phonetically: Usama bin Laden

nicknames with characters other than a-z, 0-9 are not possible, because they are part of the url sometimes.

like [url]http://community.jcow.net/u/nickname.[/url]