added files

application/libraries/Userauth.php

@@ -0,0 +1,29 @@
+<?php
+if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+
+class Userauth
+{
+
+	public function __construct()
+	{
+		$this->CI =& get_instance();
+		$this->CI->load->library('session');
+	}
+	public function logged_in(){
+
+		if ( ! $this->CI->session->userdata('user_id'))
+		{ 
+			redirect('admin');
+		}
+	}
+
+	public function logged_admin(){
+
+		if (! $this->CI->session->userdata('user_id') && $this->CI->session->userdata('user_type') != "admin")
+		{ 
+			redirect('admin');
+		}
+	}
+	
+}
+