function login_check($ecryp_pw) {

	$username = $this->security->xss_clean($this->input->post('username'));
	$password = $this->security->xss_clean($this->input->post('userpwd'));
	
	if(empty($username) || empty($password))
		return false;
	
	$this->db->where('id', $username);
	$this->db->where('pw', $ecryp_pw);		
	
	$query = $this->db->get('admin');

	if($query->num_rows == 1)
	{
		$row = $query->row();
		$data = array(
				'isadmin' => true,
				'admin_id' => $row->id,
				'admin_name' => $row->name,
				'admin_phone' => $row->phone,
				'admin_email' => $row->email,
				'admin_usertype' => $row->usertype
				);
		$this->session->set_userdata($data);
		return true;
	}
	return false;
}