JavaScript, spiffy boy. Or VBScript. Or PERL. A scripting language anyways. But most likely JavaScript.
Java != JavaScript
Routine overnight virus scans never turned up anything, I run IE. Spybot and AdAware didn't come up with anything, as didn't the MS AntiSpyware. Got a more throught Virus scan going right now, but it isn't appearing to find anything. We'll see if anything pops up.
EDIT: AV came up with nada.