Contact form using jquery validation, codeigniter and bootstrap

I have used Jquery validation plugin for validation, bootstrap for styling HTML and Codeigniter to send the email.
I have posted the complete source code and screen dump of final outcome. Feel free to use it. :)

Bootstrap Contact form 

Form built with Twitter Bootstrap

<style type="text/css">
label.valid {
width: 24px;
height: 24px;
background: url(../img/valid.png) center center no-repeat;
display: inline-block;
text-indent: -9999px;
}
label.error {
font-weight: bold;
padding: 2px 8px;
margin-top: 2px;
}
</style>
<div class="container-fluid">
<div class="row-fluid">
<div class="span9 offset3">
<form action="" id="contact-form" class="form-horizontal" method="post">
<fieldset>
    <div class="control-group">
        <label class="control-label" for="name">Your Name</label>
        <div class="controls">
            <input type="text" class="input-xlarge" name="name" id="name">
        </div>
    </div>
    <div class="control-group">
        <label class="control-label" for="email">Email Address</label>
<div class="controls">
            <input type="text" class="input-xlarge" name="email" id="email">
        </div>
    </div>
    <div class="control-group">
        <label class="control-label" for="subject">Subject</label>
        <div class="controls">
            <input type="text" class="input-xlarge" name="subject" id="subject">
        </div>
    </div>
    <div class="control-group">
        <label class="control-label" for="message">Your Message</label>
        <div class="controls">
            <textarea class="input-xlarge" name="message" id="message" rows="3"></textarea>
        </div>
    </div>
    <div class="control-group">
        <div class="controls">
            <button type="submit" class="btn">Send Email</button>
        </div>
    </div>
</fieldset>
</form>
<!-- output the results (Success or failure message from controller) -->
<div id="results"></div>
</div>
</div>
</div>

Required jQuery/Javascript

$(document).ready(function() {
 $('#contact-form').validate({
  rules: {
   name: {
    minlength: 2,
    required: true
   },
   email: {
    required: true,
    email: true
   },
   subject: {
    minlength: 2,
    required: true
   },
   message: {
    minlength: 2,
    required: true
   }
  },
  highlight: function(element) {
   $(element).closest('.control-group').removeClass('success').addClass('error');
  },
  success: function(element) {
   element.text('OK!').addClass('valid').closest('.control-group').removeClass('error').addClass('success');
  }, 
  
  submitHandler: function( form ) {
       
        $.ajax({
            url : 'contact/process',
            data : $('#contact-form').serialize(),
            type: "POST",
            success : function(data){
             $("#contact-form").hide('slow');
             $('#results').html(data);
            }
        })
        return false;
     }
  
 });  
}); // end document.ready

Codeigniter Controller

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Contact extends CI_Controller {

 function process()
 { 
  $this->load->library('email');
              //grab the post data
$this->email->from($this->input->post('email'), $this->input->post('name'));
  $this->email->to('sombody@gmail.com'); 
  $this->email->subject($this->input->post('subject'));
  $this->email->message($this->input->post('message')); 
  
  if($this->email->send())
  {
     echo "We have successfully received your email. We will Contact you ASAP.";
  }
  else
  {
   echo "Some problem occurred.";
  }   
 }
}

/* End of file contact.php */
/* Location: ./application/controllers/contact.php */