function loginAdmin($username, $password)
    {
        $this->db->select('BaseTbl.userId, BaseTbl.password, BaseTbl.name, BaseTbl.roleId, Roles.role');
        $this->db->from('tbl_users as BaseTbl');
        $this->db->join('tbl_roles as Roles','Roles.roleId = BaseTbl.roleId');
        $this->db->where('BaseTbl.username', $username);
		$this->db->where('BaseTbl.password', MD5($password));
        $query = $this->db->get();

        $user = $query->result();

        if(!empty($user)){
            return $user;
        } else {
            return array();
        }
    }