Heeey, I'm Bouncing Bunny!

(define (dt)
    (let ((t2 (js-eval "new Date().getTime()")))
        (let ((delta (- t2 t)))
            (set! t t2)
            delta)))

(define (bunnyMove left top)
    (set-style! bunny "left" left)
    (set-style! bunny "top" top))