<html>
<head>
<title>JS判断浏览器</title>
</head>
<body>
<script language="javascript">
var Sys = {};
//获取userAgent信息
var ua = navigator.userAgent.toLowerCase();
//document.write("获取浏览器的详细信息:<br />"+ua)
var s;
(s = ua.match(/msie ([\d.]+)/)) ? Sys.ie = s[1] :
(s = ua.match(/firefox\/([\d.]+)/)) ? Sys.firefox = s[1] :
(s = ua.match(/chrome\/([\d.]+)/)) ? Sys.chrome = s[1] :
(s = ua.match(/opera.([\d.]+)/)) ? Sys.opera = s[1] :
(s = ua.match(/version\/([\d.]+).*safari/)) ? Sys.safari = s[1] : 0;
//测试
if (Sys.ie) document.write("IE:" + Sys.ie);
if (Sys.firefox) document.write("Firefox:" + Sys.firefox);
if (Sys.chrome) document.write("Chrome:" + Sys.chrome);
if (Sys.opera) document.write("Opera:" + Sys.opera);
if (Sys.safari) document.write("Safari:" + Sys.safari);
</script>
</body>
</html>