Function to check if Mobile Device (Android, WebOS, iPhone, iPad, iPod (or iOS), Windows Phone, SymbianOS, RIM)

mobileCheck.js

(function () {

	'use strict';
	
  	var useragent = navigator.userAgent;

	function deviceOS() {
		if(useragent.match(/Android/i)) {
			return 'android';
		} else if(useragent.match(/webOS/i)) {
			return 'webos';
		} else if(useragent.match(/iPhone/i)) {
			return 'iphone';
		} else if(useragent.match(/iPod/i)) {
			return 'ipod';
		} else if(useragent.match(/iPad/i)) {
			return 'ipad';
		} else if(useragent.match(/Windows Phone/i)) {
			return 'windows phone';
		} else if(useragent.match(/SymbianOS/i)) {
			return 'symbian';
		} else if(useragent.match(/RIM/i) || useragent.match(/BB/i)) {
			return 'blackberry';
		} else {
			return 'no-device';
		}
	}
	
})();