title: recording durations in milliseconds using jQuery?
body: <p>I am building an AJAX page that when the user clicks a box, it sends an ajax request and returns a result.  This is a very simple game.  The users repeatedly click the box, and I need to record how much time has elapsed between each click with a precision of milliseconds.  So with my request actually, I will be sending the elapsed time since the last request and storing it in a database or session.</p>
  
  <p>Javascript does have a timer that is precise in ms, right?  So does jQuery make this task of keeping a time between clicks easy?</p>