greek string through an html form

[st3lios]

Hello! I have an html page, which contains the following form:

<form action="adduser.jsp" method="post">
Username <input type="text" name="user" />
Password <input type="password" name="psw" />
<input type="submit" value="Register" />

Then in the adduser.jsp page I get the name with the command:
String name = request.getParameter( "user" );

The problem is when I give greek names. For example, if I insert the name "νίκος" the result in the jsp page is "???".
I tried adding " accept-charset="iso-8859-7" ", which is recommended for greek, but nothing happened. Any ideas?