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();
            if ((BrowserDetect.browser == 'Firefox' && BrowserDetect.version < 3) || (BrowserDetect.browser == 'Explorer' && BrowserDetect.version < 7) || (BrowserDetect.browser == 'Safari' && BrowserDetect.version < 4)) {
                alert("You are using an unsupported browser. Items on the following pages may not render properly. Please upgrade to the latest version of Firefox, Safari, or Internet Explorer.");
            }