Having problem with running Y! Clone..

Here is the config i am using with my server:

<?php

global $configuration;

$configuration['db']	= "facebook"; 		//	database name
$configuration['host']	= "localhost";	//	database host
$configuration['user']	= "root";		//	database user
$configuration['pass']	= "back";		//	database password
$configuration['port'] 	= '3306';		//	database port

$configuration['gid'] 	= 'pub-12345678912345612';		// Google Adsense ID
$configuration['url'] 	= 'localhost/Yahoo_Answers_Clone';		// URL without www or http://
$configuration['title'] = 'Welcome to YourSite.com';		// Page Title
$configuration['description'] = 'Ask questions on any topic, get real answers from real people. Have a question? Ask it. Know an answer? Share it. Find and share information on Answerbag.com.'; // Meta Description
$configuration['keywords'] = 'answer, question, faq, information, knowledge, primer'; // Meta Keywords
$configuration['style'] = 'default.css';		// Stylesheet

//print_r($configuration);
if($HTTP_POST_VARS['language'] != 'PHP') {
	$_SESSION['languageid'] = $HTTP_POST_VARS['language'];
	$language_id = $_SESSION['languageid'];
}

?>

Code (markup):

and here are the errors i get..
i know it is error because of HTTP_POST_VARS but i d k what should i write in there..?

Notice: Undefined variable: HTTP_POST_VARS in E:\wamp\www\Yahoo_Answers_Clone\includes\configuration.php on line 19

Notice: Undefined variable: HTTP_POST_VARS in E:\wamp\www\Yahoo_Answers_Clone\includes\configuration.php on line 20

Notice: Undefined variable: HTTP_POST_VARS in E:\wamp\www\Yahoo_Answers_Clone\index.php on line 29
   

Notice: Undefined index: Password in E:\wamp\www\Yahoo_Answers_Clone\includes\left.php on line 
Notice: Undefined index: catid in E:\wamp\www\Yahoo_Answers_Clone\includes\left.php on line 101

Code (markup):

Note that above db config is all correct but the problem is in HTTP_POST_VARS what should i write in there!@@??

 

dump..
no one knows about HTTP_POST_VARS
I thought you guys are good programmers

 

i got it sorted. just uploaded to the webhosting and it worked fine no need to edit those lines xD