$(document).ready(function(){
 var BrowserDetect={
  init:function(){
   this.browser=this.searchString(this.dataBrowser)||"unknown browser";
   this.version=this.searchVersion(navigator.userAgent)||this.searchVersion(navigator.appVersion)||"unknown version";
   this.OS=this.searchString(this.dataOS)||"unknown OS";

   $("body").addClass(BrowserDetect.OS+" "+BrowserDetect.browser+" "+BrowserDetect.browser+"-"+Math.floor(BrowserDetect.version)+" "+BrowserDetect.OS+"-"+BrowserDetect.browser);
  },
  searchString: function(data){
   for(var i=0; i<data.length; i++){
    var dataString=data[i].string;
    var dataProp=data[i].prop;
    this.versionSearchString=data[i].versionSearch||data[i].identity;
    if(dataString){
     if(dataString.indexOf(data[i].subString)!=-1)return data[i].identity;
    }else if(dataProp)return data[i].identity;
   }
  },
  searchVersion: function(dataString){
   var index=dataString.indexOf(this.versionSearchString);
   if(index==-1)return;
   return parseFloat(dataString.substring(index+this.versionSearchString.length+1));
  },
  dataBrowser:[
   {string:navigator.vendor,subString:"Apple",identity:"Safari"},
   {prop:window.opera,identity:"Opera"},
   {string:navigator.userAgent,subString:"Firefox",identity:"Firefox"},
   {string:navigator.userAgent,subString:"Netscape",identity:"Netscape"},
   {string:navigator.userAgent,subString:"MSIE",identity:"IE",versionSearch:"MSIE"},
   {string:navigator.userAgent,subString:"Gecko",identity:"Mozilla",versionSearch:"rv"},
   {string:navigator.userAgent,subString:"Mozilla",identity:"Netscape",versionSearch:"Mozilla"}
  ],
  dataOS:[
   {string:navigator.platform,subString:"Win",identity:"Win"},
   {string:navigator.platform,subString:"Mac",identity:"Mac"},
   {string:navigator.platform,subString:"Linux",identity:"Linux"}
  ]
 };
 
 BrowserDetect.init();
})