//www.quirksmode.org/js/detect.html#string

// Global browser versions
var chromeVersion = 8;
var safariVersion = 5;
var firefoxVersion = 3.6;
var ieVersion;

var chromeURL = 'http://www.google.com/chrome';
var safariURL = 'http://www.apple.com/safari/';
var firefoxURL = 'http://www.mozilla.com/en-US/';
var ieURL;

$(function () {

    var osVersion = $('#hdnOSVersion').val();

    $.cookie('cookieOS', BrowserDetect.OS);
    $.cookie('cookieBrowser', BrowserDetect.browser);
    $.cookie('cookieBrowserVersion', BrowserDetect.version);

    //Removed until IE9 comes out of beta

//    if ((osVersion == "Windows 2008") || (osVersion == "Windows Vista") || (osVersion == "Windows 7")) {
//        ieVersion = 9;
//        ieURL = 'http://windows.microsoft.com/ie9'
//    } else {
        ieVersion = 8;
        ieURL = 'http://www.microsoft.com/uk/windows/internet-explorer/worldwide-sites.aspx'
//    }

    if ((BrowserDetect.OS == "Windows") || (BrowserDetect.OS == "Mac")) {

        //Test Browser Alert
        //showBrowserAlert();

        switch (BrowserDetect.browser) {
            case "Chrome":
                if (BrowserDetect.version < chromeVersion) {
                    showBrowserAlert();
                }
                break;
            case "Safari":
                if (BrowserDetect.version < safariVersion) {
                    showBrowserAlert();
                }
                break;
            case "Firefox":
                if (BrowserDetect.version < firefoxVersion) {
                    showBrowserAlert();
                }
                break;
            case "Explorer":
                if (BrowserDetect.version < ieVersion) {
                    showBrowserAlert();
                }
                break;
            default:
        }
    }
});

function showBrowserAlert() {

    var $browserDetectWrap = $('#browserDetectWrap')

	$('#bvC').html('v' + chromeVersion);
	$('#bvS').html('v' + safariVersion);
	$('#bvF').html('v' + firefoxVersion);
	$('#bvI').html('v' + ieVersion);

	$('#aIE').attr('href', ieURL);
	$('#aFF').attr('href', firefoxURL);
	$('#aCh').attr('href', chromeURL);
	$('#aS').attr('href', safariURL);

	$('#' + BrowserDetect.browser + ' a').addClass('selected')

	$('#browserDetect h3').html('Your version of ' + BrowserDetect.browser + ' is out of date!');
	$('.intro').html('You are running <b>' + BrowserDetect.browser + ' v' + BrowserDetect.version + '</b>. Using an out of date browser version poses a serious security threat.');

	$('.later a').click(function (e) {
	    e.preventDefault();
	    $browserDetectWrap.fadeOut(200, function () { $('#darkBackgroundLayer').fadeOut(200); });
	    
	});

	$('#darkBackgroundLayer').fadeIn(500, function () { $browserDetectWrap.fadeIn(200); });
	
}

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();