Determine the browser version and browser kernel

if (!   browser.ie &&!browser.mac) {var UA = Navigator.userAgent.toLowerCase (). toString (); Determine if the IE kernel is not a non-IE version if (ua.indexof (' 360ee ') >-1) | | (Ua.indexof (' 360se ') >-1) | | (Ua.indexof (' SE ') >-1) | | (Ua.indexof (' aoyou ') >-1) | | (Ua.indexof (' TheWorld ') >-1) | | (Ua.indexof (' Worldchrome ') >-1) | | (Ua.indexof (' Greenbrowser ') >-1) | | (Ua.indexof (' Baidu ') >-1) | | (Ua.indexof (' Qqbrowser ') >-1))       {//is the word Toggle compatibility mode window.open ("publicpage/point-se.aspx");       } else {//No, it is recommended to change the browser alert (' Switch to IE kernel browser '); }} else {//To determine the version model of IE (browser.version = && Browser.ie10compat) | | (browser.version = = && Browser.ie11compat))            {window.open ("publicpage/point.aspx"); }

/* * @desc determine browser version and browser kernel * @author wangyanling * @date July 4, 2014 */var browser = function () {var agent = Navi Gator.userAgent.toLowerCase (), opera = Window.opera, browser = {//detect if the current browser is IE ie:/(msie\s|trident.* RV:) ([\w.] +)/.test (agent),//detect whether the current browser is Opera opera: (!!        Opera && opera.version),//detects if the current browser is the WebKit kernel browser webkit: (Agent.indexof (' applewebkit/') >-1), Detects if the current browser is running on Mac platform Mac: (Agent.indexof (' Macintosh ') >-1),//detect if the current browser is in "weird mode" under quirks:    (Document.compatmode = = ' Backcompat ')}; Detects if the current browser kernel is gecko kernel Browser.gecko = (navigator.product = = ' Gecko ' &&!browser.webkit &&!browser.oper    a &&!browser.ie);    var version = 0; Internet Explorer 6.0+ if (browser.ie) {var v1 = Agent.match (?: msie\s ([\w.]        +))/); var v2 = Agent.match (/(?: Trident.*rv: ([\w.]        +))/);     if (v1 && v2 && v1[1] && v2[1]) {       Version = Math.max (v1[1] * 1, v2[1] * 1);        } else if (v1 && v1[1]) {version = v1[1] * 1;        } else if (v2 && v2[1]) {version = v2[1] * 1;        } else {version = 0;        }//Detect if Browser mode is IE11 compatibility mode Browser.ie11compat = Document.documentmode = = 11;        Detects if the browser mode is IE9 compatibility mode Browser.ie9compat = Document.documentmode = = 9;        Detects if the browser mode is IE10 compatibility mode Browser.ie10compat = Document.documentmode = = 10; Detects if the browser is IE8 browser BROWSER.IE8 =!!        Document.documentmode;        Detects if the browser mode is IE8 compatibility mode Browser.ie8compat = Document.documentmode = = 8; Detects if browser mode is IE7 compatibility mode Browser.ie7compat = ((Version = = 7 &&!document.documentmode) | | document.        Documentmode = = 7);        Detects if browser mode is IE6 mode or weird mode Browser.ie6compat = (Version < 7 | | browser.quirks);        Browser.ie9above = version > 8;    Browser.ie9below = version < 9; }//GecKo. if (Browser.gecko) {var geckorelease = Agent.match (/rv: ([\d\.]        +)/);            if (geckorelease) {geckorelease = Geckorelease[1].split ('. ');        Version = Geckorelease[0] * 10000 + (Geckorelease[1] | | 0) * + (geckorelease[2] | | 0) * 1; }}//detects if the current browser is chrome, and if so, returns the large version number of chrome if (/chrome\/(\d+\.\d)/i.test (agent)) {browser.chrome = +regex    p[' \x241 ']; }//detects if the current browser is safari and, if so, returns the large version of Safari if (/(\d+\.\d)? (?: \). \d)? \s+safari\/? (\d+\.\d+)/i.test (agent) &&!/chrome/i.test (agent)) {Browser.safari = + (regexp[' \x241 ') | |    regexp[' \x242 ');    }//Opera 9.50+ if (browser.opera) Version = Parsefloat (Opera.version ());    WebKit 522+ (Safari) if (browser.webkit) Version = parsefloat (Agent.match (/applewebkit\/(\d+)/) [1]);    Detects the current browser version number browser.version = versions; return browser;} ();

Determine the browser version and browser kernel