Thanks for the warning, anyway i don't have Java installed on my system and by default javascript is disabled for every site so i think that i'm safe for now
Windows ships with java by default - unless you have already manually removed it.
Open a command prompt and type:
java -version
Then you'll know if you have java. Also, disabling javascript would not have protected against this attack. The attacker was using a java applet - and if you click 'Allow' you have given the attacker full access to download and run any file he want's on your machine.