var userAgent = navigator.userAgent.toLowerCase();
 
// Figure out what browser is being used
jQuery.browser = {
	version: (userAgent.match( /.+(?:rv|it|ra|ie|me)[\/: ]([\d.]+)/ ) || [])[1],
	chrome: /chrome/.test( userAgent ),
	safari: /webkit/.test( userAgent ) && !/chrome/.test( userAgent ),
	opera: /opera/.test( userAgent ),
	msie: /msie/.test( userAgent ) && !/opera/.test( userAgent ),
	mozilla: /mozilla/.test( userAgent ) && !/(compatible|webkit)/.test( userAgent )
};

// Checks the browser and adds classes to the body to reflect it.

jQuery(document).ready(function(){
    
    var userAgent = navigator.userAgent.toLowerCase();
    jQuery.browser.chrome = /chrome/.test(navigator.userAgent.toLowerCase()); 
    
    // Is this a version of IE?
    if(jQuery.browser.msie){
        jQuery('body').addClass('browserIE');
        
        // Add the version number
        jQuery('body').addClass('browserIE' + jQuery.browser.version.substring(0,1));
    }
    
    
    // Is this a version of Chrome?
    if(jQuery.browser.chrome){
    
        jQuery('body').addClass('browserChrome');
        
        //Add the version number
        userAgent = userAgent.substring(userAgent.indexOf('chrome/') +7);
        userAgent = userAgent.substring(0,1);
        jQuery('body').addClass('browserChrome' + userAgent);
        
        // If it is chrome then jQuery thinks it's safari so we have to tell it it isn't
        jQuery.browser.safari = false;
    }
    
    // Is this a version of Safari?
    if(jQuery.browser.safari){
        jQuery('body').addClass('browserSafari');
        
        // Add the version number
        userAgent = userAgent.substring(userAgent.indexOf('version/') +8);
        userAgent = userAgent.substring(0,1);
        jQuery('body').addClass('browserSafari' + userAgent);
    }
    
    // Is this a version of Mozilla?
    if(jQuery.browser.mozilla){
        
        //Is it Firefox?
        if(navigator.userAgent.toLowerCase().indexOf('firefox') != -1){
            jQuery('body').addClass('browserFirefox');
            
            // Add the version number
            userAgent = userAgent.substring(userAgent.indexOf('firefox/') +8);
            userAgent = userAgent.substring(0,1);
            jQuery('body').addClass('browserFirefox' + userAgent);
        }
        // If not then it must be another Mozilla
        else{
            jQuery('body').addClass('browserMozilla');
        }
    }
    
    // Is this a version of Opera?
    if(jQuery.browser.opera){
        jQuery('body').addClass('browserOpera');
    }
    
    
});



var BrowserDetect = {
	init: function () {
		this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
		this.version = this.searchVersion(navigator.userAgent)
			|| this.searchVersion(navigator.appVersion)
			|| "an unknown version";
		this.OS = this.searchString(this.dataOS) || "an unknown OS";
	},
	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.userAgent,
			subString: "Chrome",
			identity: "Chrome"
		},
		{ 	string: navigator.userAgent,
			subString: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb"
		},
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari",
			versionSearch: "Version"
		},
		{
			prop: window.opera,
			identity: "Opera"
		},
		{
			string: navigator.vendor,
			subString: "iCab",
			identity: "iCab"
		},
		{
			string: navigator.vendor,
			subString: "KDE",
			identity: "Konqueror"
		},
		{
			string: navigator.userAgent,
			subString: "Firefox",
			identity: "Firefox"
		},
		{
			string: navigator.vendor,
			subString: "Camino",
			identity: "Camino"
		},
		{		// for newer Netscapes (6+)
			string: navigator.userAgent,
			subString: "Netscape",
			identity: "Netscape"
		},
		{
			string: navigator.userAgent,
			subString: "MSIE",
			identity: "Explorer",
			versionSearch: "MSIE"
		},
		{
			string: navigator.userAgent,
			subString: "Gecko",
			identity: "Mozilla",
			versionSearch: "rv"
		},
		{ 		// for older Netscapes (4-)
			string: navigator.userAgent,
			subString: "Mozilla",
			identity: "Netscape",
			versionSearch: "Mozilla"
		}
	],
	dataOS : [
		{
			string: navigator.platform,
			subString: "Win",
			identity: "Windows"
		},
		{
			string: navigator.platform,
			subString: "Mac",
			identity: "Mac"
		},
		{
			   string: navigator.userAgent,
			   subString: "iPhone",
			   identity: "iPhone/iPod"
	    },
		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]

};
BrowserDetect.init();