显示来自数据库的搜索结果，但结果分页不能在codeigniter中工作？

Question

search results from database are displayed but on that results pagination not working in codeigniter? Hello to all, I am using codeigniter i have one text field in my view page when user enter any name in that field related with my database table 'deals' the deals match with entered field are displayed but on that pagination links not working .when i click on 2nd page link it just blinks as i use ajax,i also apply session on entered term,but cant get what to do now?

here my controller

class Pagesearch extends CI_Controller {

    public function __construct()
    {
        parent::__construct();
        $this->load->model('searchmodel');
                $this->load->helper('url');
        // Load Pagination
        $this->load->library('pagination');
                $this->load->library('session');
    }


     public function index($offset = 0)
         {

               $pagination_per_page = 3;


           $config['base_url'] = base_url().'pagesearch/index/';
               $config['per_page'] = $pagination_per_page;
              $search_term = $this->searchmodel->searchterm_handler($this->input->post('tsd'));

               $config['total_rows'] = count($this->searchmodel->get_results($search_term));

               $config['uri_segment'] = 3;
           $config['use_page_numbers'] = TRUE;            
           $this->pagination->initialize($config);



         $data['deals_data'] = $this->searchmodel->get_results($search_term, $pagination_per_page, (($offset != 0)?( $pagination_per_page * ($offset - 1)): 0));
         $this->load->view('deals/jsonsearch',$data);


        }

here it is my model 

<?php
class Searchmodel extends CI_Model {

    public function __construct()
    {
        $this->load->database();

    }

        public function get_results($search_term, $limit, $offset)
    {

        $this->db->select('*');
        //$this->db->from('deals');
        $this->db->like('name',$search_term);
        $query = $this->db->get('deals',$limit,$offset);
        return $query->result_array();
        }

        public function searchterm_handler($search_term)
        {
            if($search_term)
            {
            $this->session->set_userdata('tsd', $search_term);
            return $search_term;
            }
            elseif($this->session->userdata('tsd'))
            {
            $search_term = $this->session->userdata('tsd');
            return $search_term;
            }
            else
            {
            $search_term ="";
            return $search_term;
            }
        }


}

and this is view to display

<div id="dealsData">
    <?php foreach ($deals_data as $data): ?>
         //some code here to diplay

<?php endforeach ?>
    <div id="pagination">
        <?php echo $this->pagination->create_links(); ?>
    </div>

</div>

so please anybody who can go through this stuff searching results with pagination using ajax in codeigniter please give some time & solution for me ?