Weird JavaScript (for me at least)

I wrote javascript:java.lang.System.out.println("Trade Initiator Script!"); in the url bar (don't ask why :D) and FireFox started my java plugin o.O So I assume it had some effect to java so I had an idea if it would be possible to control java on a webpage through javascript? (And don't tell me java has nothing to do with javascript other than they are both made from C… I know that already)

Wouldn't that allow you to hack for example java games such as RuneScape?

No one has proven me completely wrong so does that mean it could be possible?

considering it only started your java plugin i doubt you could hack runescape , but if you can, good luck with that. btw how the hell(bound hackers) did you do your sig!!!

Well I just wanted to know if you could actually control Java through JavaScript injection. It was just example :P I drew that sig with paint and compiled the frames with gif movie gear. (Though that tree is not originally drewn by me. I just made the falling leaf thing and my nick)

if you can find a suitble injection script, then yeah you probably could hack runescape.

That's not really what I wanted to know :D and I think RuneScape is bit too complicated anyways.