JavaScript implementation get Browser version, OS type _javascript tips

The code is very concise, functional very practical, here is not much nonsense, directly to the code:

/** * Created by the Administrator on 15-1-12. */function Broswerutil () {} Broswerutil = {//Detect browser version getbrowserversion:function () {var agent = Navigator.use
    Ragent.tolowercase ();
    var arr = [];
    var Browser = "";
    var bversion = "";
    var verinnum = ""; IE if (Agent.indexof ("MSIE") > 0) {var regstr_ie =/msie [\d.]
      +;/gi;
      Browser = "IE"; Bversion = "" + Agent.match (regstr_ie)}//firefox else if (Agent.indexof ("Firefox") > 0) {var regst R_FF =/firefox\/[\d.]
      +/gi;
      Browser = "Firefox";
    Bversion = "" + Agent.match (REGSTR_FF); }//chrome else if (Agent.indexof ("Chrome") > 0) {var regstr_chrome =/chrome\/[\d.]
      +/gi;
      Browser = "Chrome";
    Bversion = "" + Agent.match (regstr_chrome); //safari Else if (Agent.indexof ("Safari") > 0 && agent.indexof ("Chrome") < 0) {var regstr_ SAF =/version\/[\d.]
      +/gi;
      Browser = "Safari"; Bversion ="" + Agent.match (REGSTR_SAF); }//opera else if (Agent.indexof ("Opera") >= 0) {var Regstr_opera =/version\/[\d.]
      +/gi;
      Browser = "Opera";
    Bversion = "" + Agent.match (Regstr_opera);
      else {var browser = navigator.appname;
        if (browser = "Netscape") {var version = Agent.split (";");
        var trim_version = version[7].replace (/[]/g, ""); var rvstr = Trim_version.match (/[\d\.]
        /g). ToString ();
        var rv = rvstr.replace (/[,]/g, "");
        bversion = RV; Browser = "IE"}} verinnum = (bversion + ""). Replace (/[^0-9.]
    /ig, "");
    Arr.push (Browser);
    Arr.push (Verinnum);
  return arr;
    ///Detect if XX browser WB: (function () {var useragent = navigator.userAgent.toLowerCase (); return {isIE6:/msie 6.0/.test (useragent),//IE6 isIE7:/msie 7.0/.test (useragent),//IE7 isIE8:/msi E 8.0/.test (useragent),//IE8 isIE9:/msie 9.0/.test (useragent),//IE9 Isie/msie 10.0/.test (useragent),//IE10 isIE11:/msie 11.0/.test (useragent),//IE11 ISLB:/lbbrowser/.test (U seragent),//Cheetah browser isuc:/ucweb/.test (useragent),//UC Browser is360:/360se/.test (useragent),//360 browser is Baidu:/bidubrowser/.test (useragent),//Baidu browser Issougou:/metasr/.test (useragent),//Sogou browser ischrome:/chrome/ . Test (Useragent.substr ( -33, 6)),//Chrome browser Isfirefox:/firefox/.test (useragent),//Firefox browser Isopera:/opera/ 
      . Test (useragent),//Opera browser issafire:/safari/.test (useragent) &&!/chrome/.test (useragent),//Safire browser
  ISQQ:/qqbrowser/.test (useragent)//qq Browser}; } (),//detects the current operating system Currentsystem: (function () {var system = {Win:false, mac:false, Xll:false 
      , Iphone:false, Ipoad:false, Ipad:false, Ios:false, Android:false, Nokian:false,
    Winmobile:false, Wii:false, ps:false}; var ua = navigator.useragent;
    Detection platform var p = navigator.platform;
    System.win = P.indexof (' win ') = = 0;
    System.mac = P.indexof (' mac ') = = 0;
    System.xll = (p.indexof (' xll ') = = 0 | | p.indexof (' Linux ') = = 0); Detects the Windows operating system if (System.win) {if (/win) {if (?:d ows)? ( [^do] {2}) \s?
              (\d+\.\d+)/.test (UA)) {if (regexp[' $] = = ' NT ') {switch (regexp[' $ ')] {case ' 5.0 ':
              System.win = ' 2000 ';
            Break
              Case ' 5.1 ': System.win = ' XP ';
            Break
              Case ' 6.0 ': System.win = ' Vista ';
            Break
              Case ' 6.1 ': System.win = ' 7 ';
            Break
              Case ' 6.2 ': System.win = ' 8 ';
            Break
              Default:system.win = ' NT ';
          Break
        Or else if (regexp[' $ '] = = ' 9x ') {System.win = ' ME ';
        else {System.win = regexp[' $ '];
   }   }//Mobile device System.iphone = ua.indexof (' iphone ') >-1;
    System.ipod = ua.indexof (' ipod ') >-1;
    System.ipad = Ua.indexof (' ipad ') >-1;
    System.nokian = Ua.indexof (' Nokian ') >-1;
    Windows Mobile if (System.win = = ' CE ') {system.winmobile = System.win;
        else if (System.win = = ' Ph ') {if (/windows phone OS (\d+.\d)/i.test (UA)) {System.win = ' phone ';
      System.winmobile = parsefloat (regexp[' $ '); }//Detect iOS version if (System.mac && ua.indexof (' Mobile ') >-1) {if/CPU (?: IPhone)?
      OS (\d+_\d+)/i.test (UA) {System.ios = parsefloat (regexp[' ' '].replace ' (' _ ', '. '));    else {System.ios = 2; Can not really detect, so can only guess}//Detect Android Version if (/android (\d+\.\d+)/i.test (UA)) {system.android = Pars
    Efloat (regexp[' $ ');
    }//game system system.wii = Ua.indexof (' wii ') >-1;
    system.ps =/playstation/i.test (UA); return {System: System}}) ()}
 

The above is the JavaScript packaged version of the browser and the operating system type of code library, I hope you can enjoy.