$(function(){
	$('#a a')
		.css( {backgroundPosition: "-20px 90px"} )
		.mouseover(function(){
			$(this).stop().animate({backgroundPosition:"(-20px 188px)"}, {duration:500})
		})
		.mouseout(function(){
			$(this).stop().animate({backgroundPosition:"(40px 90px)"}, {duration:200, complete:function(){
				$(this).css({backgroundPosition: "-20px 90px"})
			}})
		});
});



/*
(function($) {

$(function() {
$(selector).dosomething(); //this is jQuery
});

})(jQuery)
*/