If a site is slow loading I click out within ten seconds.

As for java script, it may not be the same thing as you guys are talking about, as I know very little about computers, but I recently installed something called a Java Runtime Environment 2 (I think) on my computer (P4 2.66Ghz running windows XP) and it caused all sorts of problems, I even had two 'blue screens'. I uninstalled it.