Add ability to ban users and add sucs special service accounts

<?php

$bannedUsers = array("vote","signup","cacti","video");

function ip_in_range($ip, $range) {

	if (strpos($range, '/') == false) {

		$range .= '/32';

}

if(isset($_REQUEST['username'])) {

	$username = $_REQUEST['username'];

	$username = strtolower($_REQUEST['username']);

}

if(isset($_REQUEST['password'])) {

	$password = $_REQUEST['password'];

}

if ( in_array($username,$bannedUsers) ) {

	die("u r b&");

}

include_once("../ldap-auth.php");

$isAuthd = ldapAuth($username, $password);