I'm making a RuneScape client and I was wondering what is the HTML code for the actual RuneScape screen in th middle of the world you're playing on? Can anyone give it to me? I've looked at the source of RuneScape as well!

In Internet Explorer go to View > Source.
You'll then need to export it ALL into an editor and find out exactly what you are looking for.
There's a massive amount of code that is only really concerned with adverts.

Hey you can post that in the forums of Runescape Community (Powered by Invision Power Board) (http://www.runescapecommunity.com). They have a runescape client called swiftswitch. They used Rs2's HTML so they might know. Just so you know.

Yes, true, zybez.net has a swift switch called: swiftswitch or swiftkit. They also have a special browser thing, called tidko or something.