js如何支持多浏览器关闭窗口

// 亲测可以在IE 9/火狐下面可以运行

 function closeme() {var browserName = navigator.appName;if (browserName == "Netscape") {window.open('', '_parent', '');window.close();} else if (browserName == "Microsoft Internet Explorer") {window.opener = "whocares";window.close();}}