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";
            return this.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.platform,
                    subString: "Linux",
                    identity: "Linux"
            }
    ]
};