$(function(){
	$('#bar_top_top a')
		.css( {opacity: "1"} )
		.mouseover(function(){
			$(this).stop().animate({opacity:"0.0"}, {duration:500})
			//$(this).animate({backgroundPosition:"(0 -118px)"}, {duration:1})
			//$(this).stop().animate({opacity:"1"}, {duration:250})
		})
		.mouseout(function(){
			$(this).stop().animate({opacity:"1"}, {duration:500})
			//$(this).stop().animate({backgroundPosition:"(0 0)"}, {duration:500})
		})
});