1 <html>
2 <body>
3 <script type="text/javascript">
4 var Sys = {};
5 var ua = navigator.userAgent.toLowerCase();
6 if (window.ActiveXObject)
7 Sys.ie = ua.match(/msie ([\d.]+)/)[1]
8 else if (document.getBoxObjectFor)
9 Sys.firefox = ua.match(/firefox\/([\d.]+)/)[1]
10 else if (window.MessageEvent && !document.getBoxObjectFor)
11 Sys.chrome = ua.match(/chrome\/([\d.]+)/)[1]
12 else if (window.opera)
13 Sys.opera = ua.match(/opera.([\d.]+)/)[1]
14 else if (window.openDatabase)
15 Sys.safari = ua.match(/version\/([\d.]+)/)[1];
16
17 //以下进行测试
18 if(Sys.ie) document.write('IE: '+Sys.ie);
19 if(Sys.firefox) document.write('Firefox: '+Sys.firefox);
20 if(Sys.chrome) document.write('Chrome: '+Sys.chrome);
21 if(Sys.opera) document.write('Opera: '+Sys.opera);
22 if(Sys.safari) document.write('Safari: '+Sys.safari);
23 </script>
24 </body>
25 </html>
