diff --git a/jsend-demo.php b/jsend-demo.php
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+<!DOCTYPE html>
+<html lang="en">
+<head><title>jSEND demo</title>
+<script src="https://code.jquery.com/jquery-2.1.1.min.js"></script>
+<script src="jsend.min.js"></script>
+<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css">
+<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap-theme.min.css">
+<script src="//netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script>
+</head>
+<body>
+
+<style type="text/css">
+	textarea {margin-top: 10px; margin-bottom: 10px;}
+</style>
+
+<h1 class="text-center">jSEND Demo</h1>
+<div class='container'>
+
+	<div class='col-md-12'>
+		Text Message ( <span id="msg-size"></span> chars )
+		<textarea class="form-control" rows="3" id='msg'></textarea>
+		<div class="text-center">
+			<button class="btn btn-sm btn-info" id='js-com-jsend'>Compress and Send to Server</button>
+		</div>
+	</div>
+
+	<div class='col-md-12'>
+		Compressed by Client Script ( <span id="js-com-size">0</span> chars )
+		<textarea class="form-control" rows="3" id='js-com' readonly=""></textarea>
+	</div>
+
+	<div class='col-md-12'>
+		Decompressed by Server Script
+		<textarea class="form-control" rows="3" id='php-dec' readonly=""></textarea>
+	</div>	
+
+</div>
+
+<script type="text/javascript">
+
+$(document).ready(function(){
+
+	// javascript manipulate DOM
+
+	$('#js-com-jsend').click(function(){
+
+		// compress it
+		var com = $.jSEND($('#msg').val());
+
+		// show compress string
+		$('#js-com').val(com);
+		countsize('#js-com');
+		// send to server
+		$.post(
+			'dec-jSEND.php',
+			{compress:com},
+			function(data){ 
+				//console.log(data);
+				$('#php-dec').val(data);
+			},
+			'text'
+		);
+	});
+
+	$('#msg').blur(function(){ countsize('#msg');});
+
+	countsize('#msg');
+	countsize('#js-com');
+});
+
+function countsize(field){ 
+	$(field+'-size').html($(field).val().length);
+}
+
+</script
+</body>
+</html>
