$(function() {
    $('#a a.menu')
   		.css({ backgroundPosition: "0px 30px" })
		.mouseover(function() {
		    $(this).stop().animate({ backgroundPosition: "(0px 60px)" }, { duration: 200 })
		})
		.mouseout(function() {
		    $(this).stop().animate({ backgroundPosition: "(0px 30px)" }, { duration: 200, complete: function() {
		        $(this).css({ backgroundPosition: "0px 30px" })
		    }
		    })
		})
});