[ask] lempar variable untuk disimpan dari dynamic dropdown ajax

	function add_proses()
	{
		$this->form_validation->set_rules('npp', 'Nomor Pokok Pegawai', 'trim|required|xss_clean');
		$this->form_validation->set_rules('name', 'Nama', 'trim|required|xss_clean');
		$this->form_validation->set_rules('notaRubrik', 'Nota Rubrik', 'trim|required|xss_clean');
		/*
		$this->form_validation->set_rules('birthdate', 'Tanggal Lahir', 'trim|required|xss_clean');
		$this->form_validation->set_rules('joindate', 'Tanggal Bergabung', 'trim|required|xss_clean');
		*/
		if($this->form_validation->run() == TRUE)
		{
			$this->ambil_kota();
			$data_employee = array('npp' => $this->input->post('npp'),
								   'name' => $this->input->post('name'),
								   'nota_rubrik' => $this->input->post('notaRubrik'),
								   'group_id' => 'group_id',
								   'gender' => $this->input->post('gender'),
								   );
			$this->pegawai_model->insert_data_employee($data_employee);
		}
		else
		{
			$data['gender'] = array('1' => 'Laki-laki', '2' => 'Perempuan');
			$divisi = $this->pegawai_model->get_divisi()->result();
			foreach($divisi as $row)
			{
				$data['options_divisi'][$row->division_id] = $row->division_name;
			}
 
			$data['main_view'] = 'employee/employee_insert';
			$this->load->view('template', $data);
		}
	}
 
	function ambil_kota()
	{
		$res = $this->db->query("SELECT group_id, group_name FROM ms_group WHERE division_id = '" . $this->input->post('division_id') . "'");
 
		$i=0;
		foreach ($res->result_array() as $rows) {
			$hasil[$i]['group_id'] = $rows['group_id'];
			$hasil[$i]['group_name'] = $rows['group_name'];
			$i++;
		}
		$this->output->set_output(json_encode($hasil));
	}

<script language="javascript" src="<?php echo base_url().'datetime/datetimepicker_css.js';?>" ></script>
<script type="text/javascript" src="<?php echo base_url().'/js/jquery-1.4.3.min.js';?>"></script>
<script lang="javascript">
$(document).ready(function() {
 
$("#cboProv").change(function() {
		$("#cboKota").empty();
		$.post('employee/ambil_kota',{ division_id : $("#cboProv option:selected").val()},
		function(data) 
		{
			$.each(data, function(i, item)
			{$("#cboKota").append('<option value="' + item.group_id + '”>'+item.group_name + '</option>');})
		},"json");
	});
});
</script>
---------------------------------------
<p>
<label for="divisi">Divisi :</label>
<?php echo form_dropdown('divisi', $options_divisi, isset($default['divisi']) ? $default['divisi'] : '', 'id = cboProv'); ?>
&nbsp;
 
<select id="cboKota"></select>
</p>