제가 ajax로 호출해서 사용중입니다..

js 부분

function reg_pass_find( reg_name, reg_id, ju_fa, ju_la )
{
 var jumin = ju_fa+ju_la;
 $.ajax({
   type: 'POST',
   url: '/member/member/reg_pass_find',
   data: 'reg_name=' + reg_name + '&jumin=' + jumin + '®_id=' + reg_id,
   success: function(result){
    if (result == 1) 
    {
     $('#reg_pass').show();
     $('#reg_pass').html
     ("아이디가 존재하지 않습니다.<input type='button' value='닫기' onclick='cls(this);'>"); 
    }
    else
    {
     $('#reg_pass').show();
     $('#reg_pass').html
     ("회원님의 이메일" + result + "로 임시비밀 번호를 전송합니다.
     <input type='button' value='닫기' onclick='cls(this);'>");
    }
   }
 });
}

function reg_pass_find()
 {
  
  $reg_name = $this->input->post('reg_name');
  $reg_jumin = $this->input->post('jumin');
  $reg_id = $this->input->post('reg_id');
  $this->load->model('member/member_s');
  $this->load->model('member/member_u');
  $reg_pass = $this->member_s->reg_pass_find( $reg_name, $reg_id, $reg_jumin);
  $find_ok = $reg_pass->num_rows();
  $reg_email = $reg_pass->row();
  if( $find_ok != 0 )
  {
   $reg_email = $reg_email->reg_email;
   echo $reg_email;
   $pass = "";
   $num = array('A','B','C','D','E','F','G','H','I','J','K',
                'L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
                 1,2,3,4,5,6,7,8,9,0);
     for ($i = 0; $i < 6; $i++) 
     {
       $rand = rand(0,35);
    $pass .= $num[$rand];
     }
     $this->member_u->reg_pass_up( $reg_name, $reg_id, $reg_jumin, $pass );
     $this->load->library('email');
   $this->email->from('redhyumu@gmail.com', '내이름');
   $this->email->to($reg_email); 
   $this->email->subject('임시비밀번호를 보내드립니다.');
   $this->email->message("$pass 로 변경되셨습니다."); 
   $this->email->send();
  }
  else
  {
   echo 1;
  }
 }