how create Facebook Like URL data Extract Using jQuery PHP and Ajax

Hii all
I like URL data Extract example attach url facebook
how to plugin to the site and data base conection drupal

I'm still learning

code ajax

// <![CDATA[	
$(document).ready(function(){	
 
// delete event
$('#attach').livequery("click", function(){
 
	if(!isValidURL($('#url').val()))
	{
		alert('Please enter a valid url.');
		return false;
	}
	else
	{
		$('#load').show();
		$.post("fetch.php?url="+$('#url').val(), {
		}, function(response){
			$('#loader').html($(response).fadeIn('slow'));
			$('.images img').hide();
			$('#load').hide();
			$('img#1').fadeIn();
			$('#cur_image').val(1);
		});
	}
});	
// next image
$('#next').livequery("click", function(){
 
	var firstimage = $('#cur_image').val();
	$('#cur_image').val(1);
	$('img#'+firstimage).hide();
	if(firstimage <= $('#total_images').val())
	{
		firstimage = parseInt(firstimage)+parseInt(1);
		$('#cur_image').val(firstimage);
		$('img#'+firstimage).show();
	}
});	
// prev image
$('#prev').livequery("click", function(){
 
	var firstimage = $('#cur_image').val();
 
	$('img#'+firstimage).hide();
	if(firstimage>0)
	{
		firstimage = parseInt(firstimage)-parseInt(1);
		$('#cur_image').val(firstimage);
		$('img#'+firstimage).show();
	}
 
});	
// watermark input fields
jQuery(function($){
 
   $("#url").Watermark("http://");
});
jQuery(function($){
 
	$("#url").Watermark("watermark","#369");
 
});	
function UseData(){
   $.Watermark.HideAll();
   $.Watermark.ShowAll();
}
});	
function isValidURL(url){
var RegExp = /(ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?/;

if(RegExp.test(url)){
	return true;
}else{
	return false;
}
}
// ]]>

index .php

<input type="hidden" name="cur_image" id="cur_image" />
<div class="wrap" align="center">
 
	<div class="box" align="left">
 
		<div class="head">Link</div>
		<div class="close" align="right">
			<div class="closes"></div>
		</div>
 
		<br clear="all" /><br clear="all" />
 
		<input type="text" name="url" size="64" id="url" />
		<input type="button" name="attach" value="Attach" id="attach" />
		<br clear="all" />
 
		<div id="loader">
 
			<div align="center" id="load" style="display:none"><img src="load.gif" /></div>
 
		</div>
		<br clear="all" />
	</div>
 
</div>

code download
http://www.box.net/shared/8z35cz0hrn

thanks