var uAgent = navigator.userAgent;
var browser = '';
var version = '';
var goodBrowser = '0';
if (/Firefox[\/\s](\d+\.\d+)/.test(uAgent)){
  browser = "Firefox";
  version = new Number(RegExp.$1);
  goodBrowser = '1';
} else if (/Mozilla[\/\s](\d+\.\d+)/.test(uAgent)) {
  browser = "Mozilla";
  version = new Number(RegExp.$1);
  goodBrowser = '1';
} else if (/MSIE[\/\s](\d+\.\d+)/.test(uAgent)) {
  browser = "Internet Explorer";
  version = new Number(RegExp.$1);
  if (version >= '8') { goodBrowser = '1' }
} else if (/Chrome[\/\s](\d+\.\d+)/.test(uAgent)) {
  browser = "Chrome";
  version = new Number(RegExp.$1);
} else if (/Safari[\/\s](\d+\.\d+\.\d+)/.test(uAgent)) {
  browser = "Safari";
  version = new Number(RegExp.$1);
  goodBrowser = '1';
} else if (/Opera[\/\s]\d+\.\d+.+Version[\/\s](\d+\.\d+)/.test(uAgent)) {
  browser = "Opera";
  version = new Number(RegExp.$1);
} else if (/Nintendo Wii/.test(uAgent)) {
  browser = "Opera For The Wii";
  version = 'Unknown'
} else {
  browser = uAgent;
  version = "[None]";
}
if (goodBrowser != '1') {
  var msg = "Please note that your are using " + browser + " version " + version + ".\n\n" +
            "Our enhanced security system works best with Firefox, Safari,\n" +
            "or Internet Explorer version 8 or higher. You may continue to\n" +
            "use our site and you will be able to place orders with your\n" +
            "current browser, however, you may not be able to use some of\n" +
            "the more advanced features of our site, such as creating a\n" +
            "customer account, or maintaining a virtual wallet.\n\n" +
            "To continue using your current browser, click \"OK\", or if you\n" +
            "would rather upgrade your browser now, click \"CANCEL\" and\n" +
            "you will be sent to the official Firefox site (GetFirefox.com).\n" +
            "There you will be able to download and install Firefox.";
  if (window.confirm(msg) == false) {
    var msg = "After you download and install Firefox, please return\n" +
              "to Kreta Reserve to take full advantage of our website.\n\n" +
              "Thank you for your interest in Kreta Reserve!";
    window.alert(msg);
    window.location = "http://GetFirefox.com";
  }
}