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support.detectOS = function(ua){
  var os = false, minorVersion, match = [], agentRxs = {
    fire:/(Silk)\/(\d+)\.(\d+(\.\d+)?)/,
    android:/(Android|Android.*(?:Opera|Firefox).*?\/)\s*(\d+)\.(\d+(\.\d+)?)/,
    iphone:/(iPhone|iPod).*OS\s+(\d+)[\._]([\d\._]+)/,
    ipad:/(iPad).*OS\s+(\d+)[\._]([\d_]+)/, 
    meego:/(MeeGo).+NokiaBrowser\/(\d+)\.([\d\._]+)/,
    webos:/(webOS)\/(\d+)\.(\d+(\.\d+)?)/,
    blackberry:/(BlackBerry|BB10).*?Version\/(\d+)\.(\d+(\.\d+)?)/,
    playbook:/(PlayBook).*?Tablet\s*OS\s*(\d+)\.(\d+(\.\d+)?)/,
    winphone:/(IEMobile)\/(\d+)\.(\d+(\.\d+)?)/,
    windows:/(MSIE)\s+(\d+)\.(\d+(\.\d+)?)/},
    osRxs = {ios:/^i(phone|pad|pod)$/i, android:/^android|fire$/i, blackberry:/^blackberry|playbook/i, windows:/windows|winphone/},
    formFactorRxs = {tablet:/playbook|ipad|fire/i},
    browserRxs = {omini:/Opera\sMini/i, omobile:/Opera\sMobi/i, firefox:/Firefox|Fennec/i, mobilesafari:/version\/.*safari/i, chrome:/chrome/i, webkit:/webkit/i, ie:/MSIE|Windows\sPhone/i};
  for (var agent in agentRxs){
    if (agentRxs.hasOwnProperty(agent)) {
      match = ua.match(agentRxs[agent]);
      if (match){
        if (agent == "windows" && "plugins" in navigator) return false;
        os = {};
        os.device = agent;
        os.tablet = testRx(agent, formFactorRxs, false);
        os.browser = testRx(ua, browserRxs, "default");
        os.name = testRx(agent, osRxs);
        os[os.name] = true;
        os.majorVersion = match[2];
        os.minorVersion = match[3].replace("_", ".");
        minorVersion = os.minorVersion.replace(".", "").substr(0, 2);
        os.flatVersion = os.majorVersion + minorVersion + (new Array(3 - (minorVersion.length < 3 ? minorVersion.length : 2)).join("0"));
        os.appMode = window.navigator.standalone || (/file|local/).test(window.location.protocol) || typeof window.PhoneGap !== UNDEFINED || typeof window.cordova !== UNDEFINED;
        if (os.android && support.devicePixelRatio < 1.5 && (window.outerWidth > 800 || window.outerHeight > 800 || (window.screen && (window.screen.availWidth > 800 || window.screen.availHeight > 800)))) os.tablet = agent;
        break;
      }
    }
  }
  return os;
};
support.mobileOS = support.detectOS(navigator.userAgent);
function detectBrowser(ua){
  var browser = false, match = [], browserRxs = {webkit:/(chrome)[ \/]([\w.]+)/i, safari:/(webkit)[ \/]([\w.]+)/i, opera:/(opera)(?:.*version|)[ \/]([\w.]+)/i, msie:/(msie) ([\w.]+)/i, mozilla:/(mozilla)(?:.*? rv:([\w.]+)|)/i};
  for (var agent in browserRxs)
    if (browserRxs.hasOwnProperty(agent)){
      match = ua.match(browserRxs[agent]);
      if (match){
        browser = {};
        browser[agent] = true;
        browser[match[1].toLowerCase()] = true;
        browser.version = match[2];
        break;
      }
    }
  return browser;
}
support.browser = detectBrowser(navigator.userAgent);
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