Sliding Background Links

$('a', '#nav').hover(function() {
         if(!$(this).parent().hasClass('current')) {
                 $(this).stop().animate({
                         backgroundPosition: '(0 -75px)'
                 });
         }
 }, function() {
         if(!$(this).parent().hasClass('current')) {
                 $(this).stop().animate({
                         backgroundPosition: '(0 -0)'
                 });
         }
 });

Slides up and down the background image of a link when rolled over. Requiresbackground position plugin.