$(function() {
			$('#header #atwork')
				.css( {backgroundPosition: "0 0"} )
				.mouseover(function(){
					$('#header').stop().animate({backgroundPosition:"(0 0)"}, {duration:800})
					$('#header p').stop().animate({backgroundPosition:"(593px 73px)"}, {duration:800})
			})
				.mouseout(function(){
					$('#header').stop().animate({backgroundPosition:"(-3000px 0)"}, {duration:800})
					$('#header p').stop().animate({backgroundPosition:"(710px 73px)"}, {duration:800})
			})
			$('#header #atnight')
				.css( {backgroundPosition: "0 0"} )
				.mouseover(function(){
					$('#header').stop().animate({backgroundPosition:"(-6000px 0)"}, {duration:800})
					$('#header p').stop().animate({backgroundPosition:"(823px 73px)"}, {duration:800})
			})
				.mouseout(function(){
					$('#header').stop().animate({backgroundPosition:"(-3000px 0)"}, {duration:800})
					$('#header p').stop().animate({backgroundPosition:"(710px 73px)"}, {duration:800})
			})
		});