I have 9+ Years of experience in web development.
I have created about 300+ Application using ASP.NET/C#/PHP/Wordpress/ jQuery, Javascript, JSON, webservices, xml etc.
Here is my proposed method to solve this:
Right now the java applet might be making a connection to the server, instead of that we can use ajax using (jquery/javascript) and then request from the server data.
The server component might have to be bit modified to returned JSON data
Once we have the json data on our javascript/jquery end, we can do magics with it.