划重点：解锁Adobe Flash Player中的夜间模式，给眼睛放放假

<a href="JavaScript:void(0);" id='black1'>夜间模式</a>
<script>
$("#black1").click(function(){
		var s = $(this).html();
		if (s=="夜间模式") {
			$('body').css("background-color","black");
			$('body').css("opacity","0.7")
			$('body').css("-moz-opacity","0.7")
			$('body').css("filter","alpha(opacity=50)")
			$(this).html("白天模式");
		}else{
			$('body').css("background-color","");
			$('body').css("opacity","")
			$('body').css("-moz-opacity","")
			$('body').css("filter","")
			$(this).html("夜间模式");
		}
	});
</script>