JavaScript-client-side detection

"JavaScript advanced Programming" down, detection of rendering engine, platform, operating system, mobile device, game system detection script.

varClient =function(){    //Rendering Engines    varEngine ={ie:0, Gecko:0, WebKit:0, khtml:0, Opera:0,        //Complete versionVerNULL      }; //Browsers    varBrowser = {                //Browsersie:0, Firefox:0, Safari:0, Konq:0, Opera:0, Chrome:0,        //Specific VersionVerNULL    }; //Platform/device/os    varsystem ={win:false, Mac:false, X11:false,                //Mobile DevicesIphone:false, ipod:false, ipad:false, iOS:false, Android:false, Nokian:false, winmobile:false,                //Game SystemsWii:false, PS:false     }; //Detect Rendering Engines/browsers    varUA =navigator.useragent; if(Window.opera) {Engine.ver= Browser.ver =window.opera.version (); Engine.opera= Browser.opera =parsefloat (Engine.ver); } Else if(/applewebkit\/(\s+)/. Test (UA)) {Engine.ver= regexp["$"]; Engine.webkit=parsefloat (Engine.ver); //Figure out if it ' s Chrome or Safari        if(/chrome\/(\s+)/. Test (UA)) {Browser.ver= regexp["$"]; Browser.chrome=parsefloat (Browser.ver); } Else if(/version\/(\s+)/. Test (UA)) {Browser.ver= regexp["$"]; Browser.safari=parsefloat (Browser.ver); } Else {            //approximate version            varSafariversion = 1; if(Engine.webkit < 100) {safariversion= 1; } Else if(Engine.webkit < 312) {safariversion= 1.2; } Else if(Engine.webkit < 412) {safariversion= 1.3; } Else{safariversion= 2; } Browser.safari= Browser.ver =safariversion; }    } Else if(/khtml\/(\s+)/.test (UA) | |/konqueror\/([^;] +)/. Test (UA)) {Engine.ver= Browser.ver = regexp["$"]; Engine.khtml= Browser.konq =parsefloat (Engine.ver); } Else if(/RV: ([^\)]+) \) gecko\/\d{8}/. Test (UA)) {Engine.ver= regexp["$"]; Engine.gecko=parsefloat (Engine.ver); //determine if it ' s Firefox        if(/firefox\/(\s+)/. Test (UA)) {Browser.ver= regexp["$"]; Browser.firefox=parsefloat (Browser.ver); }    } Else if(/msie ([^;] +)/. Test (UA)) {Engine.ver= Browser.ver = regexp["$"]; engine.ie= browser.ie =parsefloat (Engine.ver); }        //Detect Browsersbrowser.ie =engine.ie; Browser.opera=Engine.opera; //Detect Platform    varp =Navigator.platform; System.win= P.indexof ("Win") = = 0; System.mac= P.indexof ("Mac") = = 0; System.x11= (P = = "X11") | | (P.indexof ("Linux") = = 0); //detect Windows operating systems    if(System.win) {if(/win (?:d ows)? ([^do]{2}) \s? (\d+\.\d+)?. Test (UA)) {            if(regexp["$"] = = "NT"){                Switch(regexp["$"]){                     Case"5.0": System.win= "2000";  Break;  Case"5.1": System.win= "XP";  Break;  Case"6.0": System.win= "Vista";  Break;  Case"6.1": System.win= "7";  Break; default: System.win= "NT";  Break; }                                        } Else if(regexp["$"] = = "9x") {System.win= "ME"; } Else{System.win= regexp["$"]; }        }    }        //Mobile DevicesSystem.iphone = Ua.indexof ("iphone") >-1; System.ipod= Ua.indexof ("IPod") >-1; System.ipad= Ua.indexof ("IPad") >-1; System.nokian= Ua.indexof ("Nokian") >-1; //Windows Mobile    if(System.win = = "CE") {System.winmobile=System.win; } Else if(System.win = = "Ph")){        if(/windows Phone OS (\d+.\d+)/. Test (UA))            {; System.win= "Phone"; System.winmobile= Parsefloat (regexp["$"]); }    }            //Determine IOS version    if(System.mac && ua.indexof ("Mobile") >-1){        if(/cpu (?: IPhone)? OS (\d+_\d+)/. Test (UA)) {System.ios= Parsefloat (Regexp.$1.replace ("_", "."))); } Else{System.ios= 2;//can ' t really detect-so guess        }    }        //Determine Android version    if(/android (\d+\.\d+)/. Test (UA)) {system.android= Parsefloat (regexp.$1); }        //Gaming SystemsSystem.wii = Ua.indexof ("Wii") >-1; System.ps=/playstation/i.test (UA); //return it    return{engine:engine, browser:browser, System:system};} ();

JavaScript-client-side detection