// Browser Detect  v2.1.6
// documentation: http://www.dithered.com/javascript/browser_detect/index.html
// license: http://creativecommons.org/licenses/by/1.0/
// code by Chris Nott (chris[at]dithered[dot]com)
function BrowserDetect() {
  var ua = navigator.userAgent.toLowerCase();

   // browser engine name
  this.isGecko = (ua.indexOf('gecko') != -1 && ua.indexOf('safari') == -1);
  this.isAppleWebKit = (ua.indexOf('applewebkit') != -1);

   // browser name
  this.isKonqueror = (ua.indexOf('konqueror') != -1);
  this.isSafari = (ua.indexOf('safari') != - 1);
  this.isOmniweb = (ua.indexOf('omniweb') != - 1);
  this.isOpera = (ua.indexOf('opera') != -1);
  this.isIcab = (ua.indexOf('icab') != -1);
  this.isAol = (ua.indexOf('aol') != -1);
  this.isIE = (ua.indexOf('msie') != -1 && !this.isOpera && (ua.indexOf('webtv') == -1) );
  this.isMozilla = (this.isGecko && ua.indexOf('gecko/') + 14 == ua.length);
  this.isFirefox = (ua.indexOf('firefox/') != -1 || ua.indexOf('firebird/') != -1);
  this.isNS = ( (this.isGecko) ? (ua.indexOf('netscape') != -1) : ( (ua.indexOf('mozilla') != -1) && !this.isOpera && !this.isSafari && (ua.indexOf('spoofer') == -1) && (ua.indexOf('compatible') == -1) && (ua.indexOf('webtv') == -1) && (ua.indexOf('hotjava') == -1) ) );

   // spoofing and compatible browsers
  this.isIECompatible = ( (ua.indexOf('msie') != -1) && !this.isIE);
  this.isNSCompatible = ( (ua.indexOf('mozilla') != -1) && !this.isNS && !this.isMozilla);

   // rendering engine versions
  this.geckoVersion = ( (this.isGecko) ? ua.substring((ua.lastIndexOf('gecko/') + 6), (ua.lastIndexOf('gecko/') + 14)) : -1 );
  this.equivalentMozilla = ( (this.isGecko) ? parseFloat(ua.substring(ua.indexOf('rv:') + 3)) : -1 );
  this.appleWebKitVersion = ( (this.isAppleWebKit) ? parseFloat(ua.substring(ua.indexOf('applewebkit/') + 12)) : -1 );

   // browser version
  this.versionMinor = parseFloat(navigator.appVersion);

   // correct version number
  if (this.isGecko && !this.isMozilla) {
    this.versionMinor = parseFloat(ua.substring(ua.indexOf('/', ua.indexOf('gecko/') + 6) + 1));
  }
  else if (this.isMozilla) {
    this.versionMinor = parseFloat(ua.substring(ua.indexOf('rv:') + 3));
  }
  else if (this.isIE && this.versionMinor >= 4) {
    this.versionMinor = parseFloat(ua.substring(ua.indexOf('msie ') + 5));
  }
  else if (this.isKonqueror) {
    this.versionMinor = parseFloat(ua.substring(ua.indexOf('konqueror/') + 10));
  }
  else if (this.isSafari) {
    // Correctly identify version, see: http://developer.apple.com/internet/safari/faq.html#anchor2
    if (ua.lastIndexOf('version/') != -1) {
      this.versionMinor = parseFloat(ua.substring(ua.lastIndexOf('version/') + 8));
    } else {
      this.versionMinor = parseFloat(ua.substring(ua.lastIndexOf('safari/') + 7));
    }
  }
  else if (this.isOmniweb) {
    this.versionMinor = parseFloat(ua.substring(ua.lastIndexOf('omniweb/') + 8));
  }
  else if (this.isOpera) {
    this.versionMinor = parseFloat(ua.substring(ua.indexOf('opera') + 6));
  }
  else if (this.isIcab) {
    this.versionMinor = parseFloat(ua.substring(ua.indexOf('icab') + 5));
  }

  this.versionMajor = parseInt(this.versionMinor);

   // dom support
  this.isDOM1 = (document.getElementById);
  this.isDOM2Event = (document.addEventListener && document.removeEventListener);

   // css compatibility mode
  this.mode = document.compatMode ? document.compatMode : 'BackCompat';

   // platform
  this.isWin = (ua.indexOf('win') != -1);
  this.isWin32 = (this.isWin && ( ua.indexOf('95') != -1 || ua.indexOf('98') != -1 || ua.indexOf('nt') != -1 || ua.indexOf('win32') != -1 || ua.indexOf('32bit') != -1 || ua.indexOf('xp') != -1) );
  this.isMac = (ua.indexOf('mac') != -1);
  this.isUnix = (ua.indexOf('unix') != -1 || ua.indexOf('sunos') != -1 || ua.indexOf('bsd') != -1 || ua.indexOf('x11') != -1)
  this.isLinux = (ua.indexOf('linux') != -1);

   // specific browser shortcuts
  this.isNS4x = (this.isNS && this.versionMajor == 4);
  this.isNS40x = (this.isNS4x && this.versionMinor < 4.5);
  this.isNS47x = (this.isNS4x && this.versionMinor >= 4.7);
  this.isNS4up = (this.isNS && this.versionMinor >= 4);
  this.isNS6x = (this.isNS && this.versionMajor == 6);
  this.isNS6up = (this.isNS && this.versionMajor >= 6);
  this.isNS7x = (this.isNS && this.versionMajor == 7);
  this.isNS7up = (this.isNS && this.versionMajor >= 7);

  this.isIE4x = (this.isIE && this.versionMajor == 4);
  this.isIE4up = (this.isIE && this.versionMajor >= 4);
  this.isIE5x = (this.isIE && this.versionMajor == 5);
  this.isIE55 = (this.isIE && this.versionMinor == 5.5);
  this.isIE5up = (this.isIE && this.versionMajor >= 5);
  this.isIE6x = (this.isIE && this.versionMajor == 6);
  this.isIE6up = (this.isIE && this.versionMajor >= 6);

  this.isIE4xMac = (this.isIE4x && this.isMac);

  this.isSafari1x = (this.isSafari && this.versionMajor >= 125 && this.versionMajor <= 312);
  this.isSafari124 = (this.isSafari && this.versionMajor == 125);
  this.isSafari132 = (this.isSafari && this.versionMajor == 312);
  this.isSafari1up = (this.isSafari && (ua.lastIndexOf('version/') != -1 || this.versionMajor >= 125));
  this.isSafari2x = (this.isSafari && this.versionMajor >= 419);
  this.isSafari204 = (this.isSafari && this.versionMajor == 419);
  this.isSafari2up = (this.isSafari && (ua.lastIndexOf('version/') != -1 || this.versionMajor >= 419));
  this.isSafari3x = (this.isSafari && this.versionMajor == 3);
  this.isSafari30 = (this.isSafari && this.versionMinor == 3.0);
  this.isSafari31 = (this.isSafari && this.versionMinor == 3.1);
  this.isSafari3up = (this.isSafari && ua.lastIndexOf('version/') != -1);

}
var browser = new BrowserDetect();