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## Example files for the title:  

# Mobile HTML5, by Maximiliano Firtman

[![Mobile HTML5, by Maximiliano Firtman](http://akamaicovers.oreilly.com/images/9781491914625/cat.gif)](https://www.safaribooksonline.com/library/view/title/9781491914625//)

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O'Reilly books are here to help you get your job done. In general, you may use the code in O'Reilly books in your programs and documentation. You do not need to contact us for permission unless you're reproducing a significant portion of the code. For example, writing a program that uses several chunks of code from our books does not require permission. Answering a question by citing our books and quoting example code does not require permission. On the other hand, selling or distributing a CD-ROM of examples from O'Reilly books does require permission. Incorporating a significant amount of example code from our books into your product's documentation does require permission.

We appreciate, but do not require, attribution. An attribution usually includes the title, author, publisher, and ISBN.

If you think your use of code examples falls outside fair use or the permission given here, feel free to contact us at <permissions@oreilly.com>.

Please note that the examples are not production code and have not been carefully testing. They are provided "as-is" and come with no warranty of any kind.

<!doctype html>

<html lang="en">

<title>Webapp</title>

<meta charset=utf-8>

<meta name="viewport" content="width=device-width,initial-scale=1">

<style>

#ball {

    width: 20px;

	height: 20px;

	border-radius: 10px;

	background-color: red;

	position:absolute;

	top: 0px;

	left: 0px;

}

</style>

<div id="ball"></div>

<script>

// Position Variables

var x = 0;

var y = 0;

// Speed - Velocity

var vx = 0;

var vy = 0;

// Acceleration

var ax = 0;

var ay = 0;

var delay = 10;

var vMultiplier = 0.01;

if (window.DeviceMotionEvent==undefined) {

	document.getElementById("no").style.display="block";

	document.getElementById("yes").style.display="none";

} else {

	window.ondevicemotion = function(event) {

		ax = event.accelerationIncludingGravity.x;

		ay = event.accelerationIncludingGravity.y;

		console.log("Accelerometer data - x: " + event.accelerationIncludingGravity.x + " y: " + event.accelerationIncludingGravity.y + " z: " +event.accelerationIncludingGravity.z); 

	}

	setInterval(function() {

		vy = vy + -(ay);

		vx = vx + ax;

		var ball = document.getElementById("ball");

		y = parseFloat(y + vy * vMultiplier);

		x = parseFloat(x + vx * vMultiplier);

		if (x<0) { x = 0; vx = 0; }

		if (y<0) { y = 0; vy = 0; }

		if (x>document.documentElement.clientWidth-20) { x = document.documentElement.clientWidth-20; vx = 0; }

		if (y>document.documentElement.clientHeight-20) { y = document.documentElement.clientHeight-20; vy = 0; }

		ball.style.top = y + "px";

		ball.style.left = x + "px";

	}, delay);

} 

</script>

<!DOCTYPE html>

<title>HTML5 testing</title>

<meta charset="utf-8">

<meta name="viewport" content="width=device-width">

<script>

navigator.webkitGetUserMedia(

    {video:true,audio:true},

    function(localMediaStream){

        var video=document.querySelector('video');

        video.src=

            webkitURL.createObjectURL(localMediaStream);

    },

    function(){

    alert("Error");

    }

);

</script>

<video width="300" height="200"></video>

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<!doctype html>

<html lang="en">

<title>Client side detection</title>

<meta charset=utf-8>

<meta name="viewport" content="width=device-width">

<style>

.no-webgl div#myDiv {

    display: none;   

}

.webgl div#myDiv {

    display:  block;  

}

</style>

<script type='text/javascript' src="//wurfl.io/wurfl.js"></script>

    <script>

    document.write("<p>Is mobile? " + WURFL.is_mobile);

    </script>

<script>

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