securyLogin

	function is_logged_in(){
		$_this =& get_instance();

		$user_session = $_this->session->userdata;

		if($this->side == 'backend'){
			if($_this->uri->segment(2) == 'login'){
				if(isset($user_session['logged_in']) && $user_session['logged_in'] == TRUE && $user_session['group'] == 'admin'){
					redirect(set_url('dashboard'));
				}
			}
			else{
				if(!isset($user_session['logged_in']) || $user_session['group'] != 'admin'){
					$_this->session->sess_destroy();
					redirect(set_url('login'));
				}
			}
		}
		else{
			if(!isset($user_session['logged_in'])){
				$_this->session->sess_destroy();
				redirect(set_url('user/login'));
			}
		}
	}