JavaScript无提示关闭当前页面窗口，兼容IE/Firefox/Chrome

<script type="text/javascript" language="javascript">	
	
	function fc(){
		var browserName=navigator.appName; 	
		if (browserName=="Netscape"){
	       window.open('','_parent','');
	   	   window.close(); 
	    } else if(browserName=="Microsoft Internet Explorer") {
		   window.opener = "whocares"; 
		   window.close(); 
	    } 
	} 
	
</script>
</head>
<body>
<div style="padding:100px;text-align:center">
	<a href="javascript:fc()">关闭</a>
</div>
</body>

　已经测试通过，兼容 IE ,谷歌，火狐中需要配置：

1、在地址栏输入about:config然后回车，警告确认
2、在过滤器中输入”dom.allow_scripts_to_close_windows“，双击即可将此值设为true 　