Checking if a survey is opened via mobile device?

/**
 * jQuery.browser.mobile (http://detectmobilebrowser.com/)
 *
 * jQuery.browser.mobile will be true if the browser is a mobile device
 *
 **/
(function(a){(jQuery.browser=jQuery.browser||{}).mobile=/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0,4))})(navigator.userAgent||navigator.vendor||window.opera);

<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' && !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>

 
OS: Windows 7
Browser: Chrome 66 (66.0.3359.170)
Mobile: false
Flash: no check
Cookies: true
Viewport width: 2691
Viewport heigth: 1612
Screen Size: 3072 x 1728
 
Full User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.170 Safari/537.36

...
...
 
$(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
		);
    });

...
...
$(document).ready(function() {	
 
		// Hide this question (remove double slash below to hide)
		//$('#question{QID}').hide();
 
		// Load the question
		$('#question{QID} textarea').val(
 
		jscd.mobile;
		);
    });
 

 
OS: Windows 7
Browser: Chrome 66 (66.0.3359.170)
Mobile: false
Flash: no check
Cookies: true
Viewport width: 2691
Viewport heigth: 1612
Screen Size: 3072 x 1728
 
Full User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.170 Safari/537.36

...
...
 
$(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
		);
    });

...
...
$(document).ready(function() {	
 
		// Hide this question (remove double slash below to hide)
		//$('#question{QID}').hide();
 
		// Load the question
		$('#question{QID} textarea').val(
 
		    jscd.mobile;
 
		);
    });
 

false