1 <script>
2 function detectIE() {
3 var ua = window.navigator.userAgent;
4
5 var msie = ua.indexOf('MSIE ');
6 if (msie > 0) {
7 // IE 10 or older => return version number
8 // return parseInt(ua.substring(msie + 5, ua.indexOf('.', msie)), 10);
9 return true;
10 }
11
12 var trident = ua.indexOf('Trident/');
13 if (trident > 0) {
14 // IE 11 => return version number
15 // var rv = ua.indexOf('rv:');
16 // return parseInt(ua.substring(rv + 3, ua.indexOf('.', rv)), 10);
17 return true;
18 }
19
20 var edge = ua.indexOf('Edge/');
21 if (edge > 0) {
22 // Edge (IE 12+) => return version number
23 // return parseInt(ua.substring(edge + 5, ua.indexOf('.', edge)), 10);
24 return true;
25 }
26
27 // other browser
28 return false;
29 }
30
31 function alert_browser_version() {
32 if(detectIE()){
33 alert("Browser Error:\nWe are strongly recommend you visit the website via Chrome or Firefox instead of IE.");
34 window.location.href = "http://hkw20016704.hbap.adroot.hsbc:8000/cr/index/";
35 return false;
36 }
37 }
38 </script>
<body onload="alert_browser_version()">
....
</body>
