do not fetch rss automatically, respect some privacy!

use update_checks_enabled option to tune the default (altho new option would be
more reasonable)

--- nagios/html/main.php~	2012-05-29 00:04:23.000000000 +0300
+++ nagios/html/main.php	2012-05-29 00:08:36.419474072 +0300
@@ -15,12 +15,19 @@
 <script type="text/javascript" src="/js/jquery/jquery.js"></script>
 
 <script type='text/javascript'>
+<?php
+	$updateinfo=get_update_information();
+	if ($updateinfo['update_checks_enabled']!==false):
+?>
 
 	//rss fetch by ajax to reduce page load time
 	$(document).ready(function() {		
 		 $('#splashbox2-contents').load('rss-corefeed.php');				
 		 $('#splashbox4-contents').load('rss-newsfeed.php');	
 	}); 
+<?php
+	endif;
+?>
 
 </script>
 
@@ -47,7 +54,7 @@
 
 <div id="updateversioninfo">
 <?php
-	$updateinfo=get_update_information();
+	//$updateinfo=get_update_information();
 	//print_r($updateinfo);
 	//$updateinfo['update_checks_enabled']=false;
 	//$updateinfo['update_available']=true;