Some people requested to me from my readers in united states via the mail is how to create youtube like rating with Jquery and Ajax. For their request to day in this tutorial, i will show you how to implement Youtube like rating with Jquery. It is so easy and nice with quick bar. 

 I had designed a simple script for you with PHP, Ajax  and Jquery. I am sure that you will like it seriously. Provide a demo screenshot below.
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Youtube like Rating with Jquery and Ajax

Database Design

Messages Table Here:
CREATE TABLE messages(
id INT PRIMARY KEY AUTO_INCREMENT,
message TEXT,
up INT,
down INT);
index.php 
<script type="text/javascript" src="http://ajax.googleapis.com/
ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function()
{
$(".like").click(function()
{
var id=$(this).attr("id");
var name=$(this).attr("name");
var dataString = 'id='+ id + '&name='+ name;
$("#votebox").slideDown("slow");

 $("#flash").fadeIn("slow");

 $.ajax
({
type: "POST",
url: "rating.php",
data: dataString,
cache: false,
success: function(html)
{
$("#flash").fadeOut("slow");
$("#content").html(html);
} 
});
});

 // Close button action
$(".close").click(function()
{
$("#votebox").slideUp("slow");
});

 });
</script>
//HTML Code
<a href="#" class="like" id="1" name="up">Like</a>
-- 
<a href="#" class="like" id="1" name="down">Dislike</a>

 <div id="votebox">
<span id='close'><a href="#" class="close">X</a></span>
<div id="flash">Loading........</div>
<div id="content">
</div>

</div>
rating.php
Contains PHP code. If name = up it will update UP else DOWN
<?php
include("db.php");
if($_POST['id'])
{
$id=mysql_escape_String($_POST['id']);
$name=mysql_escape_String($_POST['name']);
// Vote update  
mysql_query("update messages set $name=$name+1 where id='$id'");
// Getting latest vote results
$result=mysql_query("select up,down from messages where id='$id'");
$row=mysql_fetch_array($result);
$up_value=$row['up'];
$down_value=$row['down'];
$total=$up_value+$down_value; // Total votes 
$up_per=($up_value*100)/$total; // Up percentage 
$down_per=($down_value*100)/$total; // Down percentage
//HTML output
echo '<b>Ratings for this blog</b> ( '.$total.' total)
Like :'.$up_value.'
<div id="greebar" style="width:'.$up_per.'%"></div>
Dislike:'.$down_value.'
<div id="redbar" style="width:'.$down_per.'%"></div>';
}

?>
CSS 
#votebox
{
border:solid 1px #dedede; padding:3px;
display:none;
padding:15px;
width:700px;
-moz-border-radius: 6px;
-webkit-border-radius: 6px;
}
#greebar
{
float:left;
background-color:#aada37;
border:solid 1px #698a14;
width:0px;
height:12px;
}
#redbar
{
float:left;
background-color:#cf362f;
border:solid 1px #881811;
width:0px;
height:12px;
}
#close
{
float:right; font-weight:bold; 
padding:3px 5px 3px 5px; 
border:solid 1px #333;
-moz-border-radius: 6px;
-webkit-border-radius: 6px;

}
Enjoy now your video with youtube like rating. Hopefully, you successfully have done to create youtube like rating with jquery and ajax(php, css, jquery and ajax).