ua.js

/* mobile UA detection http://jsfiddle.net/Takazudo/rxPYk/ */

var ua = (function(){
	var ua = {};
	var navigator = window.navigator;
	var platforms = [
		{ property: 'platform', regex: /iPhone/i, identity: 'iPhone' },
		{ property: 'platform', regex: /iPod/i, identity: 'iPod' },
		{ property: 'userAgent', regex: /iPad/i, identity: 'iPad' },
		{ property: 'userAgent', regex: /Blackberry/i, identity: 'Blackberry' },
		{ property: 'userAgent', regex: /Android/i, identity: 'Android' },
		{ property: 'platform', regex: /Mac/i, identity: 'Mac' },
		{ property: 'platform', regex: /Win/i, identity: 'Windows' },
		{ property: 'platform', regex: /Linux/i, identity: 'Linux' }
	];
	for(var i=0, l=platforms.length, platform; i<l; i++){
		platform = platforms[i];
		ua[platform.identity] = platform.regex.test(navigator[platform.property]);
	}
	ua.AndroidTablet = ua.Android && !/mobile/i.test(navigator.userAgent);
	ua.tablet = ua.iPad || ua.AndroidTablet;
	return ua;
})();

/* test */

function test(){
	var $ul = $('#log');
	function log(text){
		$('<li>' + text + '</li>').appendTo($ul);
	}
	log('iPhone: ' + ua.iPhone);
	log('iPad: ' + ua.iPad);
	log('iPod: ' + ua.iPod);
	log('Blackberry: ' + ua.Blackberry);
	log('Android: ' + ua.Android);
	log('Mac: ' + ua.Mac);
	log('Windows: ' + ua.Windows);
	log('Linux: ' + ua.Linux);
	log('AndroidTablet: ' + ua.AndroidTablet);
	log('tablet: ' + ua.tablet);
}

test();