jquery fadein for all images, not sure using best implementation of code

jquery fadein for all images, not sure using best implementation of code

Hello. 
On a custom Wordpress theme I've written, I'm using fadein on all images. It seems to work, but I'm not sure I'm using the best code, and sometimes jitters on load. I'd appreciate if you could give it once over.

The production site is here

header
  1. <script type="text/javascript"
  2. src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js">
  3. </script>
footer

  1. <script type="text/javascript">
  2. $('img').hide().fadeIn(1000);
  3. </script>

many thanks for your time, really enjoying learning jquery