mengupload lebih dari 1 gambar

Assalamualaikum Warahmatullahi Wabarakatuh...
 
Mas, Saya ingin menanyakan mau mengupload 1 dari 3 file gambar yang tersedia. namun ketika di klik menu detail, ketiga file gambar tersebut terisi file yang sama, seharusnya 1 kolom gambar saja yang terisi dikarenakan cuma satu kolom yang diupload. berikut saya lampirkan scriptnya:
 
function tambah_izinbidan(){
        cek_session_akses('izinbidan',$this->session->id_session);
        if (isset($_POST['submit'])){
            $config['upload_path'] = 'asset/izinbidan/';
            $config['allowed_types'] = 'gif|jpg|png|JPG|JPEG';
            $config['max_size'] = '3000'; // kb
            $this->load->library('upload', $config);
            $this->upload->do_upload('i');
            $hasil=$this->upload->data();
            $this->upload->do_upload('j');
            $hasil2=$this->upload->data();
            $this->upload->do_upload('k');
            $hasil3=$this->upload->data();
            $this->upload->do_upload('l');
            $hasil4=$this->upload->data();
            $this->upload->do_upload('m');
            $hasil5=$this->upload->data();
            $this->upload->do_upload('n');
            $hasil6=$this->upload->data();
            $this->upload->do_upload('o');
            $hasil7=$this->upload->data();
            $this->upload->do_upload('p');
            $hasil8=$this->upload->data();
 
 
            $config['wm_text'] = '';
            $config['wm_type'] = 'text';
            $config['wm_font_path'] = './system/fonts/texb.ttf';
            $config['wm_font_size'] = '26';
            $config['wm_font_color'] = 'ffffff';
            $config['wm_vrt_alignment'] = 'middle';
            $config['wm_hor_alignment'] = 'center';
            $config['wm_padding'] = '20';
            $this->load->library('image_lib',$config);
            $this->image_lib->watermark();
 
 
            if ($hasil['file_name']=='')
            {
                    $data = array('nik'=>$this->db->escape_str($this->input->post('a')),
                        'username'=>$this->session->username,
                        'tahun_lulusan'=>$this->db->escape_str($this->input->post('b')),
                        'nomor_str'=>$this->db->escape_str($this->input->post('c')),
                        'nomor_rekomendasiop'=>$this->db->escape_str($this->input->post('d')),
                        'tempat_praktik'=>$this->db->escape_str($this->input->post('tmpt_praktik')),
                        'tempat_praktik'=>$this->db->escape_str($this->input->post('txtt4_praktik')),
                        'alamat_praktik'=>$this->db->escape_str($this->input->post('e')),
                        'kabupaten'=>$this->db->escape_str($this->input->post('f')),
                        'kecamatan'=>$this->db->escape_str($this->input->post('g')),
                        'desa'=>$this->db->escape_str($this->input->post('h')),
                        'tanggal_pengajuan'=>date('Y-m-d'),
                        'status'=>0
                        );
            }
            else
            {
                    $data = array('nik'=>$this->db->escape_str($this->input->post('a')),
                        'username'=>$this->session->username,
                        'tahun_lulusan'=>$this->db->escape_str($this->input->post('b')),
                        'nomor_str'=>$this->db->escape_str($this->input->post('c')),
                        'nomor_rekomendasiop'=>$this->db->escape_str($this->input->post('d')),
                        'tempat_praktik'=>$this->db->escape_str($this->input->post('txtt4_praktik')),
                        'alamat_praktik'=>$this->db->escape_str($this->input->post('e')),
                        'kabupaten'=>$this->db->escape_str($this->input->post('f')),
                        'kecamatan'=>$this->db->escape_str($this->input->post('g')),
                        'desa'=>$this->db->escape_str($this->input->post('h')),
                        'lamp_ktp'=>$hasil['file_name'],
                        'lamp_str'=>$hasil2['file_name'],
                        'lamp_sksf'=>$hasil3['file_name'],
                        'lamp_skpfpk'=>$hasil4['file_name'],
                        'lamp_foto'=>$hasil5['file_name'],
                        'lamp_rekomendasi'=>$hasil6['file_name'],
                        'lamp_pernyataan'=>$hasil7['file_name'],
                        'lamp_kuasa'=>$hasil8['file_name'],
                        'tanggal_pengajuan'=>date('Y-m-d'),
                        'status'=>0
                        );
             }
            $this->model_app->insert('izinbidan',$data);
            redirect('izinbidan');
        }else{
            $data['tag'] = $this->model_app->view_ordering('izinbidan','izinbidan_id','DESC');
 
 
            $data['recordpemohon'] = $this->model_app->view_ordering('pemohon','nik','DESC');
 
 
            $data['recordkabupaten'] = $this->model_app->view_ordering('kabupaten','id_kab','DESC');
            //$data['recordkabupaten'] = $this->model_app->view_where_ordering('kabupaten',array('id_kab'=>'$this->session->username'),'id_kab','DESC');
 
            $data['recordkabupaten'] = $this->model_app->view_where_ordering('kabupaten',array('id_kab'=>'1221'),'id_kab','DESC');
 
 
            $data['recordkecamatan'] = $this->model_app->view_join_where('kabupaten','kecamatan','id_kab',array('kabupaten.id_kab'=>'1221'),'kabupaten.id_kab','DESC');
            //$data['recordkecamatan'] = $this->model_app->view_join_where('kabupaten','kecamatan','id_kab',array('kabupaten.id_kab'=>'$this->session->kabupaten'),'kabupaten.id_kab','DESC');
 
 
            $data['recordkelurahan'] = $this->model_app->view_ordering('kelurahan','id_kel','DESC');
 
            //  $data['recordkelurahan'] = $this->model_app->view_join_where('kecamatan','kelurahan','id_kec',array('kecamatan.id_kec'=>'$this->session->kecamatan'),'kecamatan.id_kec','DESC');
 
            $data['record'] = $this->model_app->view_join_one('izindokter','pemohon','nik','izindokter.nik','DESC');
            $this->template->load('administrator/template','administrator/mod_izinbidan/view_izinbidan_tambah',$data);
        }
    }
 
 
berikut form view tambah:
 
 
<?php
     echo "<div class='col-md-12'>
              <div class='box box-info'>
                <div class='box-header with-border'>
                  <h3 class='box-title'>Tambah Izin Bidan.</h3>
                </div>
              <div class='box-body'>";
              $attributes = array('class'=>'form-horizontal','role'=>'form');
              echo form_open_multipart('izinbidan/tambah_izinbidan',$attributes); 
          echo "<div class='col-md-12'>
                  <table class='table table-condensed table-bordered'>
                  <tbody>
                    <input type='hidden' name='izinbidan_id' value=''>
 
 
                    <tr>
                      <th width='250px' scope='row'>NIK</th>  
                      <td><select name='a' class='form-control' required>
                              <option value='' selected>- Pilih -</option>";
                                foreach ($recordpemohon as $row)
                                {
                                  echo "<option value='$row[nik]'>$row[nik]|$row[nama_pemohon]</option>";
                                }
                      echo "</td>
                    </tr>
 
                    <tr>
                      <th scope='row'>Tahun Lulusan</th>                         
                      <td>
                          <select class = 'form-control' name='b' value='row[tahun]' style='width:90px !important' >";
                            $thn=date('Y');
                            for ($i=$thn; $i>=2000;$i--)
                            { 
                              echo "<option value=$i>$i</option>";  
                            }
                            echo "</select>
                          </td>
                    </tr>
                    <tr>
                      <th scope='row'>Nomor STR</th>                         
                      <td><input type='text' class='form-control' name='c'></td>
                    </tr>
 
 
                    <tr>
                      <th scope='row'>Nomor Rekomendasi</th>                         
                      <td><input type='text' class='form-control' name='d'></td>
                    </tr>
                    <tr>
                      <th scope='row'>Tempat Praktik</th>                         
                      <td><input type='text' class='form-control' name='txtt4_praktik'></td>
                    </tr>
                    <tr>
                      <th scope='row'>Alamat Praktik</th>                         
                      <td><input type='text' class='form-control' name='e'></td>
                    </tr>
 
                    <tr>
                      <th width='250px' scope='row'>Kabupaten / Kota</th>  
                      <td><select name='f' class='form-control' required>
                              <option value='' selected>- Pilih -</option>";
                                foreach ($recordkabupaten as $row)
                                {
                                  echo "<option value='$row[id_kab]'>$row[nama_kab]</option>";
                                }
                      echo "</td>
                    </tr>
 
                    <tr>
                      <th width='250px' scope='row'>Kecamatan</th>  
                      <td><select id='id_kec' name='g' class='form-control' required>
                              <option value='' selected>- Pilih -</option>";
                                foreach ($recordkecamatan as $row)
                                {
                                  echo "<option value='$row[id_kec]'>$row[nama_kec]</option>";
                                }
                      echo "</td>
                    </tr>
 
                    <tr>
                      <th width='250px' scope='row'>Kelurahan / Desa</th>  
                      <td><select name='h' id='kelurahan'  class='form-control' required onchange=\"showDesa()\">
                              <option value='' selected>- Pilih -</option>";
                                foreach ($recordkelurahan as $row)
                                {
                                  echo "<option value='$row[id_kel]'>$row[nama_kel]</option>";
                                }
                      echo "</td>
                    </tr>
 
                     <tr>
                      <th scope='row'>Permohonan yang dibubuhi Materai</th>           
                      <td>  
                           <input type='file' class='form-control' name='i'></td> 
                      </td>                                    
                    </tr>
                    <tr>
                      <th scope='row'>Dokumen KTP</th>           
                      <td>  
                           <input type='file' class='form-control' name='j'></td> 
                      </td>                                    
                    </tr>
 
                      <th scope='row'>Dokumen STR yang berlaku dan berleges</th>           
                      <td>  
                           <input type='file' class='form-control' name='k' value='no-image.jpg'></td> 
                      </td>                                    
                    </tr>
 
                    <tr>
                      <th scope='row'>Surat Keterangan Sehat Fisik dari Dokter</th>           
                      <td>  
                           <input type='file' class='form-control' name='l' value='no-image.jpg'></td> 
                      </td>                                    
                    </tr>
 
                    <tr>
                      <th scope='row'>Pas Photo</th>           
                      <td>  
                           <input type='file' class='form-control' name='m' value='no-image.jpg'></td> 
                        </td>                                    
                    </tr>
 
                    <tr>
                      <th scope='row'>Dokumen Rekomendasi dari organisasi Profesi</th>           
                      <td>  
                           <input type='file' class='form-control' name='n' value='no-image.jpg'></td> 
                      </td>                                    
                    </tr>
 
                    <tr>
                      <th scope='row'>Dokumen Pernyataan tidak melakukan Aborsi</th>           
                      <td>  
                           <input type='file' class='form-control' name='o' value='no-image.jpg'></td> 
                      </td>                                    
                    </tr>
 
                    <tr>
                      <th scope='row'>Dokumen Surat Kuasa</th>           
                      <td>  
                           <input type='file' class='form-control' name='p' value='no-image.jpg'></td> 
                      </td>                                    
                    </tr>
 
 
 
 
 
 
 
                  </tbody>
                  </table>
                </div>
 
              <div class='box-footer'>
                    <button type='submit' name='submit' class='btn btn-info'>Tambahkan</button>
 
                        <a href='".site_url('izinbidan')."'><button type='button' class='btn btn-default pull-right'>Cancel</button></a>
                  </div>
            </div></div></div>";
            echo form_close()
 
            ;
            include "koneksi.php";
?>
 
<script type="text/javascript">
var htmlobjek;
$(document).ready(function(){
 
   $("#id_kec").change(function(){
 
    var kecamatan = $("#id_kec").val();
 
    $.ajax({
        url: "<?php echo site_url('izinbidan/ambilkelurahan');?>" + "/" + kecamatan ,
        //data: "kecamatan="+kecamatan,
        cache: false,
        success: function(msg){
            $("#kelurahan").html(msg);
        }
    });
  });
 
});
 
</script>
<!--  -->
 
dari script view di atas terdapat beberapa tombol upload gambar, namun jika hanya 1 saja yang di upload, maka yang lain juga menampilkan gambar yang sama seharusnya cuma satu saja. 
 
terima kasih atas perhatiannya.