// JavaScript Document
BrowserSniff = function() {
     var that = this;
     var ua = navigator.userAgent;
     var OSDetectionList = [
          {
               string: ua,
               subString: ["Win95", "Windows 95"],
               identity: {os:"Windows", osver: "95"}
          },
          {
               string: ua,
               subString: ["Win98", "Windows 98"],
               identity: {os:"Windows", osver: "98"}
          },
          {
               string: ua,
               subString: ["Win 9x 4.90", "Windows ME"],
               identity: {os:"Windows", osver: "ME"}
          },
          {
               string: ua,
               subString: ["Windows NT 5.0", "Windows 2000"],
               identity: {os:"Windows", osver: "2000"}
          },
          {
               string: ua,
               subString: ["Windows NT 5.1", "Windows XP"],
               identity: {os:"Windows", osver: "XP"}
          },
          {
               string: ua,
               subString: ["WinNT", "Windows NT", "WinNT4.0", "Windows NT 4.0"],
               identity: {os:"Windows", osver: "NT"}
          },
          {
               string: ua,
               subString: ["MacOS X", "Mac OS X"],
               identity: {os:"Macintosh", osver: "X"}
          },
          {
               string: ua,
               subString: ["68K", "Mac_6800", "Mac_PowerPC", "PPC"],
               identity: {os:"Macintosh", osver: "PREX"}
          }
     ];
     var detectionList = [
          {
               string: ua,
               subString: "Firefox",
               versionSearch: ["Firefox/"],
               identity: {name:"Firefox",basetype:"mozilla"}
          },
          {
               prop: window.opera,
               versionSearch: ["Opera/"],
               identity: {name:"Opera",basetype:"opera"}
          },
          {      string: ua,
               subString: "OmniWeb",
               versionSearch: ["OmniWeb/"],
               identity: {name:"OmniWeb",basetype:"webkit"}
          },
          {
               string: navigator.vendor,
               subString: "Apple",
               versionSearch: ["Version/", "Safari/"],
               deviceSearch: [["iPhone","iPhone"]],
               identity: {name:"Safari",basetype:"webkit"}
          },     
          {
               string: ua,
               subString: "BlackBerry",
               versionSearch: ["0/", "e/", "i/", "y/"],
               deviceSearch: [["BlackBerry","BlackBerry"]],
               identity: {name:"BlackBerry",basetype:"blackberry"}
          },
          {
               string: ua,
               subString: "Nintendo Wii",
               versionSearch: ["Opera/"],
               deviceSearch: [["Nintendo Wii","Wii"]],
               identity: {name:"Nintendo Wii",basetype:"opera"}
          },
          {
               string: navigator.vendor,
               subString: "iCab",
               versionSearch: ["iCab/"],
               identity: {name:"iCab",basetype:"webkit"}
          },
          {
               string: navigator.vendor,
               subString: "Konqueror",
               versionSearch: ["KHTML/"],
               identity: {name:"Konqueror",basetype:"webkit"}
          },          
          {
               string: navigator.vendor,
               subString: "Camino",
               versionSearch: ["Camino/"],
               identity: {name:"Camino",basetype:"mozilla"}
          },
          {          
               // for newer Netscapes (6+)
               string: ua,
               subString: "Navigator",
               versionSearch: ["Navigator/"],
               identity: {name:"Netscape",basetype:"mozilla"}
          },
          {
               string: ua,
               subString: "MSIE",
               identity: {name:"Explorer",basetype:"ie"},
               versionSearch: ["MSIE "]
          },     
          {
               string: ua,
               subString: "Gecko",
               identity: {name:"Mozilla",basetype:"mozilla"},
               versionSearch: ["rv"]
          },
          {           
               // for older Netscapes (4-)
               string: ua,
               subString: "Netscape",
               versionSearch: ["Netscape/"],
               identity: {name:"Netscape",basetype:"mozilla"}
          }                         
     ];
     
     function setBrowserIdentity(identity) {
          for (key in identity.identity) {
               that[key] = identity.identity[key];
          }
          
          // Perform a version detection
          for (var i = 0; i < identity.versionSearch.length; i++) {
               if (ua.indexOf(identity.versionSearch[i]) > -1) {
                    var infoArray = ua.split(/(\s|;|\))/gi);
                    for (var x = 0; x < infoArray.length; x++) {
                         if (infoArray[x].indexOf(identity.versionSearch[i]) > -1) {
                              var verArr = infoArray[x].split(identity.versionSearch[i])[1].split(".");
                              var verStr = verArr[0].toString() + ".";
                              verArr.shift();
                              verStr += verArr.join("").toString();
                              that.version = parseFloat(verStr);
                         }
                    }
                    break;
               }
          }
          
          // Perform a device detection
          if (identity.deviceSearch)
               for (var i = 0; i < identity.deviceSearch.length; i++) {
                    if (ua.indexOf(identity.deviceSearch[i][0])>-1)
                         that[identity.deviceSearch[i][1]] = true;
               }
     }
     
     // Detect the browser
     
     for (var i = 0; i < detectionList.length; i++) {
          var dl = detectionList[i];
          if (dl.prop) {
               setBrowserIdentity(dl);
               break
          } else {
               if (dl.string && dl.string.indexOf(dl.subString)>-1) {
                    setBrowserIdentity(dl);
                    break;
               }
          }
     }
     
     // Detect the operating system
     for (var i = 0; i < OSDetectionList.length; i++) {
          var dl = OSDetectionList[i];
          for (x = 0; x < dl.subString.length; x++) {
               if (dl.string && dl.string.indexOf(dl.subString[x])>-1) {
                    for (key in dl.identity) {
                         that[key] = dl.identity[key];
                    }
                    break;
               }
          }
          
     }
     
     // Set the language
     this.language = navigator.language || navigator.userLanguage || navigator.systemLanguage || navigator.browserLanguage;
};