// http://www.quirksmode.org/js/detect.html

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",
            versionSearch : "Version"
        },
        {
            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();