UserAgent Strings_mobile

<script>

	var ua = navigator.userAgent;
	var checker = {
		ios: ua.match(/(iPhone|iPod|iPad)/),
		blackberry: ua.match(/BlackBerry/),
		android: ua.match(/Android/),
		windowsphone: ua.match(/Windows Phone/) 
	};
	$(document).ready(function() {
		if (checker.ios) { /* iOS Code */ }
		else if (checker.blackberry) { /* BlackBerry Code */ }
		else if (checker.android) { /* Android Code */ }
		else if (checker.windowsphone) { /* Windows Phone Code */ }
		else { /* Everything Else */ }
	});

</script>