function insert_rating($rating, $article_id)
	{
		if(mysqli_num_rows(mysqli_query("SELECT ID FROM articles_ratings
						WHERE rater_ip='".mysqli_real_escape_string(getIP())."'
						AND ID='".mysqli_real_escape_string($article_id)."'"))==0)
		{
			if(mysqli_query($conn, "INSERT INTO articles_ratings
					(`article_id`, `rating_value`, `rater_ip`)
					VALUES ('".mysqli_real_escape_string($article_id)."',
					'".mysqli_real_escape_string($rating)."',
					'".mysqli_real_escape_string(getIP())."')"))
			{
				$response = 'Thank you for voting this article!';
			}
			else {
				$response = 'Ups. A problem. I was unable to save your rating!';
			}
		}
		else {
			$response = 'Sorry but you can only rate once';
		}

		$objResponse = new xajaxResponse();
		$objResponse->addAssign("response","innerHTML", $response);
		return $objResponse;
	}