https://36du-5.com/js/llq.js

1// JavaScript Document
2
3function myBrowser() {
4    var userAgent = navigator.userAgent; 
5    var isOpera = userAgent.indexOf("Opera") > -1; 
6    var isIE = userAgent.indexOf("compatible") > -1
7            && userAgent.indexOf("MSIE") > -1 && !isOpera; 
8    var isEdge = userAgent.indexOf("Edge") > -1; 
9    var isFF = userAgent.indexOf("Firefox") > -1; 
10    var isSafari = userAgent.indexOf("Safari") > -1
11            && userAgent.indexOf("Chrome") == -1;
12    var isChrome = userAgent.indexOf("Chrome") > -1
13            && userAgent.indexOf("Safari") > -1; 
14
15    if (isIE) {
16        var reIE = new RegExp("MSIE (\\d+\\.\\d+);");
17        reIE.test(userAgent);
18        var fIEVersion = parseFloat(RegExp["$1"]);
19        if (fIEVersion == 7) {
20            return "IE7";
21        } else if (fIEVersion == 8) {
22            return "IE8";
23        } else if (fIEVersion == 9) {
24            return "IE9";
25        } else if (fIEVersion == 10) {
26            return "IE10";
27        } else if (fIEVersion == 11) {
28            return "IE11";
29        } else {
30            return "0";
31        }//IE版本过低
32        return "IE";
33    }
34    if (isOpera) {
35        return "Opera";
36    }
37    if (isEdge) {
38        return "Edge";
39    }
40    if (isFF) {
41        return "FF";
42    }
43    if (isSafari) {
44        return "Safari";
45    }
46    if (isChrome) {
47        return "Chrome";
48    }
49}
50
51var llqtype=myBrowser();
52if (llqtype!="Chrome"){
53   if (llqtype!="Safari"){
54      if (llqtype!="Edge"){
55		   if (llqtype!="FF"){
56             alert('你的浏览器版本过低，可能无法正常浏览本站，建议你在手机浏览器打开本站,或下载【谷歌浏览器】打开！');
57		   }
58      }
59}
60}