Simple mobile device detection (JS)

Mobile device detection (JS)

	var isMobile = { 
	Android: function() { return navigator.userAgent.match(/Android/i); }, 
	BlackBerry: function() { return navigator.userAgent.match(/BlackBerry/i); }, 
	iOS: function() { return navigator.userAgent.match(/iPhone|iPad|iPod/i); }, 
	Opera: function() { return navigator.userAgent.match(/Opera Mini/i); }, 
	Windows: function() { return navigator.userAgent.match(/IEMobile/i); }, 
	any: function() { return (isMobile.Android() || isMobile.BlackBerry() || isMobile.iOS() || isMobile.Opera() || isMobile.Windows()); } };

	// var isTouch = ("ontouchstart" in document.documentElement); 
	// Chrome Version 37.0.2062.103 m  (this version of chrome is firing touchstart event even tho it is not a mobile browser)

	// Usage
	if(isMobile.any()){
	      $('#footer').css('position','relative');
	} else {
	      $('#footer').css('position','fixed');
	}