Hi i need some help.

I am undertaking a project on creating a webclient for a friend for her Private RuneScape
Server.

Those of you who know what runescape is will help.
I have a redistributable version of the game, but i need help creating a broswer-based webclient that can run the game on the website.

I have the fully coded game and all of the source files, but i just need to know a way to create a WebClient for it. The game is JAVA programming language

thank you.