jquery help regarding grayscale(this);!!

jquery help regarding grayscale(this);!!

Hi, I'm still new to Jquery, and I found a similar code that I was looking for which lets images go grayscale when hovered.
What I am looking for is the other way round, so the image is grayscale, but turns color back when hovered.

I know I can do this by rewriting this code:
  1. $(document).ready(function(){
  2.      $('div.tabsFeaturedImage img').hover(function(){
  3.     grayscale(this);
  4.    }, function(){
  5.     grayscale.reset(this);
  6.    })
  7.   });


but not sure how! Can anyone help me? Thanks a bunch.