<script type="text/javascript" charset="utf-8">
  /**
   * JavaScript Client Detection
   * (C) viazenetti GmbH (Christian Ludwig)
   */
  (function (window) {
    {
      var unknown = '-';
 
      // screen
      var screenSize = '';
      if (screen.width) {
        width = (screen.width) ? screen.width : '';
        height = (screen.height) ? screen.height : '';
        screenSize += '' + width + " x " + height;
      }
var vpw = Math.max(document.documentElement.clientWidth, window.innerWidth || 0); 
var vph = Math.max(document.documentElement.clientHeight, window.innerHeight || 0); 
      // browser
      var nVer = navigator.appVersion;
      var nAgt = navigator.userAgent;
      var browser = navigator.appName;
      var version = '' + parseFloat(navigator.appVersion);
      var majorVersion = parseInt(navigator.appVersion, 10);
      var nameOffset, verOffset, ix;
 
      // Opera
      if ((verOffset = nAgt.indexOf('Opera')) != -1) {
        browser = 'Opera';
        version = nAgt.substring(verOffset + 6);
        if ((verOffset = nAgt.indexOf('Version')) != -1) {
          version = nAgt.substring(verOffset + 8);
        }
      }
      // Opera Next
      if ((verOffset = nAgt.indexOf('OPR')) != -1) {
        browser = 'Opera';
        version = nAgt.substring(verOffset + 4);
      }
      // MSIE
      else if ((verOffset = nAgt.indexOf('MSIE')) != -1) {
        browser = 'Microsoft Internet Explorer';
        version = nAgt.substring(verOffset + 5);
      }
      // Chrome
      else if ((verOffset = nAgt.indexOf('Chrome')) != -1) {
        browser = 'Chrome';
        version = nAgt.substring(verOffset + 7);
      }
      // Safari
      else if ((verOffset = nAgt.indexOf('Safari')) != -1) {
        browser = 'Safari';
        version = nAgt.substring(verOffset + 7);
        if ((verOffset = nAgt.indexOf('Version')) != -1) {
          version = nAgt.substring(verOffset + 8);
        }
      }
      // Firefox
      else if ((verOffset = nAgt.indexOf('Firefox')) != -1) {
        browser = 'Firefox';
        version = nAgt.substring(verOffset + 8);
      }
      // MSIE 11+
      else if (nAgt.indexOf('Trident/') != -1) {
        browser = 'Microsoft Internet Explorer';
        version = nAgt.substring(nAgt.indexOf('rv:') + 3);
      }
      // Other browsers
      else if ((nameOffset = nAgt.lastIndexOf(' ') + 1) < (verOffset = nAgt.lastIndexOf('/'))) {
        browser = nAgt.substring(nameOffset, verOffset);
        version = nAgt.substring(verOffset + 1);
        if (browser.toLowerCase() == browser.toUpperCase()) {
          browser = navigator.appName;
        }
      }
      // trim the version string
      if ((ix = version.indexOf(';')) != -1) version = version.substring(0, ix);
      if ((ix = version.indexOf(' ')) != -1) version = version.substring(0, ix);
      if ((ix = version.indexOf(')')) != -1) version = version.substring(0, ix);
 
      majorVersion = parseInt('' + version, 10);
      if (isNaN(majorVersion)) {
        version = '' + parseFloat(navigator.appVersion);
        majorVersion = parseInt(navigator.appVersion, 10);
      }
 
      // mobile version
      var mobile = /Mobile|mini|Fennec|Android|iP(ad|od|hone)/.test(nVer);
 
      // cookie
      var cookieEnabled = (navigator.cookieEnabled) ? true : false;
 
      if (typeof navigator.cookieEnabled == 'undefined' &amp;&amp; !cookieEnabled) {
        document.cookie = 'testcookie';
        cookieEnabled = (document.cookie.indexOf('testcookie') != -1) ? true : false;
      }
 
      // system
      var os = unknown;
      var clientStrings = [
        { s:'Windows 10', r:/(Windows 10.0|Windows NT 10.0)/ },
        { s:'Windows 8.1', r:/(Windows 8.1|Windows NT 6.3)/ },
        { s:'Windows 8', r:/(Windows 8|Windows NT 6.2)/ },
        { s:'Windows 7', r:/(Windows 7|Windows NT 6.1)/ },
        { s:'Windows Vista', r:/Windows NT 6.0/ },
        { s:'Windows Server 2003', r:/Windows NT 5.2/ },
        { s:'Windows XP', r:/(Windows NT 5.1|Windows XP)/ },
        { s:'Windows 2000', r:/(Windows NT 5.0|Windows 2000)/ },
        { s:'Windows ME', r:/(Win 9x 4.90|Windows ME)/ },
        { s:'Windows 98', r:/(Windows 98|Win98)/ },
        { s:'Windows 95', r:/(Windows 95|Win95|Windows_95)/ },
        { s:'Windows NT 4.0', r:/(Windows NT 4.0|WinNT4.0|WinNT|Windows NT)/ },
        { s:'Windows CE', r:/Windows CE/ },
        { s:'Windows 3.11', r:/Win16/ },
        { s:'Android', r:/Android/ },
        { s:'Open BSD', r:/OpenBSD/ },
        { s:'Sun OS', r:/SunOS/ },
        { s:'Linux', r:/(Linux|X11)/ },
        { s:'iOS', r:/(iPhone|iPad|iPod)/ },
        { s:'Mac OS X', r:/Mac OS X/ },
        { s:'Mac OS', r:/(MacPPC|MacIntel|Mac_PowerPC|Macintosh)/ },
        { s:'QNX', r:/QNX/ },
        { s:'UNIX', r:/UNIX/ },
        { s:'BeOS', r:/BeOS/ },
        { s:'OS/2', r:/OS\/2/ },
        { s:'Search Bot', r:/(nuhk|Googlebot|Yammybot|Openbot|Slurp|MSNBot|Ask Jeeves\/Teoma|ia_archiver)/ }
      ];
      for (var id in clientStrings) {
        var cs = clientStrings[id];
        if (cs.r.test(nAgt)) {
          os = cs.s;
          break;
        }
      }
 
      var osVersion = unknown;
 
      if (/Windows/.test(os)) {
        osVersion = /Windows (.*)/.exec(os)[1];
        os = 'Windows';
      }
 
      switch (os) {
        case 'Mac OS X':
          osVersion = /Mac OS X (10[\.\_\d]+)/.exec(nAgt)[1];
          break;
 
        case 'Android':
          osVersion = /Android ([\.\_\d]+)/.exec(nAgt)[1];
          break;
 
        case 'iOS':
          osVersion = /OS (\d+)_(\d+)_?(\d+)?/.exec(nVer);
          osVersion = osVersion[1] + '.' + osVersion[2] + '.' + (osVersion[3] | 0);
          break;
      }
 
      // flash (you'll need to include swfobject)
      /* script src="//ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject.js" */
      var flashVersion = 'no check';
      if (typeof swfobject != 'undefined') {
        var fv = swfobject.getFlashPlayerVersion();
        if (fv.major > 0) {
          flashVersion = fv.major + '.' + fv.minor + ' r' + fv.release;
        }
        else  {
          flashVersion = unknown;
        }
      }
    }
 
    window.jscd = {
      screen: screenSize,
      browser: browser,
      browserVersion: version,
      browserMajorVersion: majorVersion,
      mobile: mobile,
      os: os,
      osVersion: osVersion,
      cookies: cookieEnabled,
      flashVersion: flashVersion,
            vieww : vpw,
            viewh: vph
    };
  }(this));
 
 
$(document).ready(function() {  
 
    // Hide this question (remove double slash below to hide)
    //$('#question{QID}').hide();
 
    // Load the question
    $('#question{QID} textarea').val(
    'OS: ' + jscd.os +' '+ jscd.osVersion + '\n' +
    'Browser: ' + jscd.browser +' '+ jscd.browserMajorVersion +
      ' (' + jscd.browserVersion + ')\n' + 
    'Mobile: ' + jscd.mobile + '\n' +
    'Flash: ' + jscd.flashVersion + '\n' +
    'Cookies: ' + jscd.cookies + '\n' +
    'Viewport width: ' + jscd.vieww + '\n' +
    'Viewport heigth: ' + jscd.viewh + '\n' +
    'Screen Size: ' + jscd.screen + '\n\n' +
    'Full User Agent: ' + navigator.userAgent
    );
    });
</script>