Twitter Style Load More Results with jQuery and Ajax

Twitter and Facebook using very nice technique for loading more tweets and updates, when you click the more button old tweets display on the screen. Long days back I had posted an article same like this but I did some mistakes. So in this tutorial I had coded very simple and understanding way. I hope it's useful take a look this live demo 

 Download Script     Live Demo

Twitter API: Up and Running: Learn How to Build Applications with the Twitter API

First create a database table.

CREATE TABLE messages(
msg_id INT AUTO_INCREMENT PRIMARY KEY,
message TEXT
);

javascript Code
Contains javascipt code. $('.more').live("click",function(){} - more is the class name of anchor more button. Using $(this).attr("id") calling more button last message id field value.

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/
libs/jquery/1.3.0/jquery.min.js"></script>
<script type="text/javascript">
$(function()
{
$('.more').live("click",function()
{
var ID = $(this).attr("id");
if(ID)
{
$("#more"+ID).html('<img src="moreajax.gif" />');

$.ajax({
type: "POST",
url: "ajax_more.php",
data: "lastmsg="+ ID,
cache: false,
success: function(html){
$("ol#updates").append(html);
$("#more"+ID).remove(); // removing old more button
}
});
}
else
{
$(".morebox").html('The End');// no results
}

return false;
});
});
</script>

loadmore.php
Contains simple PHP code. Displaying results from the messages table in descending order.

<div id='container'>
<ol class="timeline" id="updates">

<?php
include('config.php');
$sql=mysql_query("select * from messages ORDER BY msg_id DESC LIMIT 9");
while($row=mysql_fetch_array($sql))
{
$msg_id=$row['msg_id'];
$message=$row['message'];
?>
<li>
<?php echo $message; ?>
</li>
<?php } ?>
</ol>

//More Button here $msg_id values is a last message id value.
<div id="more<?php echo $msg_id; ?>" class="morebox">
<a href="#" class="more" id="<?php echo $msg_id; ?>">more</a>
</div>

</div&gt;

ajax_more.php
Contains PHP code. Displaying records form the messages table where msg_id < last message id.

<?php
include("config.php");
if(isSet($_POST['lastmsg']))
{
$lastmsg=$_POST['lastmsg'];
$lastmsg=mysql_real_escape_string($lastmsg);
$result=mysql_query("select * from messages where msg_id<'$lastmsg' order by msg_id desc limit 9");
while($row=mysql_fetch_array($result))
{
$msg_id=$row['msg_id'];
$message=$row['message'];
?>
<li>
<?php echo $message; ?>
</li>
<?php
}
?>

//More Button here $msg_id values is a last message id value.
<div id="more<?php echo $msg_id; ?>" class="morebox">
<a href="#" id="<?php echo $msg_id; ?>" class="more">more</a>
</div>
<?php
}
?>

CSS Code

*{ margin:0px; padding:0px }
ol.timeline
{
list-style:none
}
ol.timeline li
{
position:relative;
border-bottom:1px #dedede dashed;
padding:8px;
}
.morebox
{
font-weight:bold;
color:#333333;
text-align:center;
border:solid 1px #333333;
padding:8px;
margin-top:8px;
margin-bottom:8px;
-moz-border-radius: 6px;
-webkit-border-radius: 6px;
}
.morebox a{ color:#333333; text-decoration:none}
.morebox a:hover{ color:#333333; text-decoration:none}
#container{margin-left:60px; width:580px }