diff --git a/about.php b/about.php
index 3d6b604..520d4e1 100644
--- a/about.php
+++ b/about.php
@@ -48,6 +48,8 @@ include "includes/navbar.html";
 	- Passed Linux Administration (General) with score 3.19 out of 5.0<br/>
 	- Passed PHP with score 3.6 out of 5.0<br/>
 	- Passed Computer Fundamental (Win95/98) with score 4.17 out of 5.0<br/>
+        - Master in Network Security with score 4.03 out of 5.0 (2012)<br/>
+        - Passed Project Management with score 3.99 out of 5.0 (2012)<br/>
     </li>
   </ol>
 </article>
diff --git a/ati-ti/index.php b/ati-ti/index.php
index 09e2bd9..6d438c5 100644
--- a/ati-ti/index.php
+++ b/ati-ti/index.php
@@ -21,7 +21,7 @@ include "../includes/courses.php";
 <section class="title">IT Architecture</section>
 <section class="sidebar">
   <header>
-    <h3>Kelas</h3>
+    <h3>Jadwal</h3>
   </header>
   <aside>
     <p>Hari <br/>Jam <br/>Ruang </p>
diff --git a/images/background-slack.jpg b/images/background-slack.jpg
new file mode 100644
index 0000000..ce87a7e
Binary files /dev/null and b/images/background-slack.jpg differ
diff --git a/includes/footer.php b/includes/footer.php
index aeeba0b..e3cc341 100755
--- a/includes/footer.php
+++ b/includes/footer.php
@@ -2,9 +2,9 @@
 <footer>
 <?php
 date_default_timezone_set("Asia/Jakarta");
-echo "<p>&copy; 2007-" . date("Y") . ". All right reserved.<br/>\n";
+echo "<p>&copy; 2007-" . date("Y") . ". All right reserved. ";
 ?>
-Suggestions, critics, and comments can be sent to <a href="mailto:<?php echo EMAIL; ?>" class="footer">Willy Sudiarto Raharjo</a><br/>
+Willy Sudiarto Raharjo<br/>
 <a href="http://validator.w3.org/check?uri=referer" class="footer">Valid HTML5</a> || <a href="http://jigsaw.w3.org/css-validator/validator?uri=http://lecturer.ukdw.ac.id/willysr" class="footer">Valid CSS3</a></p>
 <script type="text/javascript">
 
diff --git a/includes/index.css b/includes/index.css
index 5f8d61f..27f6a69 100644
--- a/includes/index.css
+++ b/includes/index.css
@@ -12,6 +12,7 @@ body, div, dl, dt, dd, h1, h2, h3, h4, h5, h6, pre, p, th, td, article, section,
 body {
   font-size: 1.2rem;
   line-height: 2rem;
+  background: url("../images/background-slack.jpg") repeat;
 }
 
 header[role="banner"] {
@@ -133,37 +134,6 @@ ul#socialbar li.twitter a:hover {
   background-position:-86px -16px;  
 }  
 
-footer {
- clear:both;
- background: #AAA;
- font-size:0.8rem;
- text-align:center;
-}
-
-footer a:link {
-  text-decoration: none;
-  color: #000;
-}
-
-footer a:visited {
-  text-decoration: none;
-  color: #000;
-}
-
-footer a:hover {    
-  text-decoration: none;
-  color: #FFF;
-}
-
-footer a:active {
-  text-decoration: none;
-  color: #FFF;
-}
-
-#calendar {
-  width: 1024px;
-  margin: 0 auto;
-}
 
 section.news {
   width: 80%;  
@@ -242,4 +212,51 @@ section.material ol ul li {
   font-size: 1rem;
   margin: 0;
   padding: 0;
+}
+
+footer {
+ clear:both;
+ background: #555;
+ font-size:0.8rem;
+ text-align:center;
+ color: #DDD
+}
+
+footer a:link {
+  text-decoration: none;
+  color: #DDD;
+}
+
+footer a:visited {
+  text-decoration: none;
+  color: #DDD;
+}
+
+footer a:hover {    
+  text-decoration: none;
+  color: #FFF;
+}
+
+footer a:active {
+  text-decoration: none;
+  color: #FFF;
+}
+
+#calendar {
+  width: 1024px;
+  margin: 0 auto;
+}
+
+section.title {
+  background: #AAA;
+  width: 100%;
+  height: 35px;
+  display: block;
+  text-align: center;
+  font-size: 2rem;
+}
+
+section.sidebar {
+  float: right;
+  width: 20%;
 }
\ No newline at end of file
diff --git a/index.php b/index.php
index 6160f58..dc93537 100644
--- a/index.php
+++ b/index.php
@@ -24,7 +24,7 @@ include "includes/navbar.html";
 <section class="right">
 <section class="quotes">
 <?php
-include "includes/quotes.php";
+#include "includes/quotes.php";
 ?>
 </section>
 
diff --git a/kakom-ti/index.php b/kakom-ti/index.php
index 7b1c14b..3ba35cd 100644
--- a/kakom-ti/index.php
+++ b/kakom-ti/index.php
@@ -21,7 +21,7 @@ include "../includes/courses.php";
 <section class="title">Computer Security</section>
 <section class="sidebar">
   <header>
-    <h3>Kelas</h3>
+    <h3>Jadwal</h3>
   </header>
   <aside>
     <p>Hari <br/>Jam <br/>Ruang </p>
diff --git a/manpro-ti/index.php b/manpro-ti/index.php
index f7e7936..6275c81 100644
--- a/manpro-ti/index.php
+++ b/manpro-ti/index.php
@@ -21,7 +21,7 @@ include "../includes/courses.php";
 <section class="title">Project Management</section>
 <section class="sidebar">
   <header>
-    <h3>Kelas</h3>
+    <h3>Jadwal</h3>
   </header>
   <aside>
     <p>Hari <br/>Jam <br/>Ruang </p>
diff --git a/os-ti/index.php b/os-ti/index.php
index 0a41d29..ed10142 100644
--- a/os-ti/index.php
+++ b/os-ti/index.php
@@ -1,67 +1,77 @@
-<!DOCTYPE html
-     PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
-     "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+<!DOCTYPE html> 
 <head>
 <title>Willy Sudiarto Raharjo - Operating System</title>
-<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-<meta name="keyword" content="Willy, Willy Sudiarto Raharjo, Willy SR, WillySR, UKDW, Dosen, Universitas Kristen Duta Wacana, Sistem Operasi, Teknik Informatika" />
+<meta name="keywords" content="Willy, Willy Sudiarto Raharjo, Willy SR, WillySR, UKDW, Dosen, Universitas Kristen Duta Wacana, Sistem Operasi, Linux, Windows, Teknik Informatika" />
 <meta name="description" content="Situs ini berisi halaman materi untuk kelas Sistem Operasi Universitas Kristen Duta Wacana" />
-<link rel="icon" href="images/favicon.ico" type="image/ico" />
-<script type="text/javascript" src="include/navbar.js"></script>
+<link rel="icon" href="../images/favicon.ico" type="image/ico" />
 <style type="text/css">
 @import "../includes/index.css";
+@import "../includes/normalize.css";
 </style>
 </head>
 <body>
-<div class="header-class"><span class="subjectTitle">Operating System</span>
 <?php
 include "../includes/functions.php";
-include "../includes/date.php";
+?>
+<header role="banner">
+<?php
 include "../includes/courses.php";
 ?>
-</div>
-<div class="sidebar">
-<!-- Class Information //-->
-<div id="class-information">
- <ul class="cinfo">
-  <li><h3>Kelas </h3> 
-  <p>Hari <br/>Jam <br/>Ruang </p></li>
-  <li><h3>Nilai Akhir</h3> 
-  <p><a href="https://docs.google.com/spreadsheet/pub?hl=en_US&amp;hl=en_US&amp;key=0AvhuiUaiIBYmdElHc2tHVS01ZWV2dWJIenE0dloyOWc&amp;output=html">Nilai Akhir</a></p></li>          
- </ul>
-</div>
-</div>
-<div class="content">
-<div class="notifications">PEMBERITAHUAN</div>
-<p>Bagi yang hendak mengambil matakuliah ini, Anda <strong>diwajibkan memiliki dan membawa buku Operating System Concepts di setiap pertemuan</strong>. Tidak akan disediakan slide materi untuk perkuliahan ini, karena semua materi sudah ada di buku.</p>
-<div class="subtitle">Pengantar</div>
-<p>Matakuliah ini memperkenalkan desain, implementasi, konsep-konsep dasar serta prinsip-prinsip Sistem Operasi modern. Cakupan matakuliah ini diawali dengan pengantar tentang sistem operasi dan struktur sistem operasi secara umum, dilanjutkan dengan  Proses dan Thread, penjadwalan CPU serta masalah yang muncul (dead lock). Bagian kedua akan membahas tentang managemen memori dan managemen berkas serta struktur penyimpanan massal.</p> <p>Dalam matakuliah ini Sistem Operasi yang beredar luas di masyarakat tidak akan dibahas secara khusus, namun membahas konsep serta prinsip-prinsip umumnya. DOS, Windows, dan LINUX akan dibahas sebagai contoh kasus.</p>
-<div class="subtitle">Materi Presentasi</div>
-<ol>
-<li>Syllabus</li>
-<li>Introduction to Operating System</li>
-<li>Operating System Structures</li>
-<li>Proses + Thread</li>
-<li>CPU Scheduling</li>
-<li>Dead Locks</li>
-<li>Main Memory</li>
-<li>Virtual Memory</li>
-<li>File System Interface</li>
-<li>File System Implementation</li>
-<li>Mass-Storage Structure</li>
-<li>Distributed File Systems</li>
-</ol>
-<div class="subtitle">Referensi Buku</div>
-<ol>
-<li><a href="http://www.os-book.com/">Operating System Concepts 8th Edition (Avi Silberschatz, Peter Baer Galvin, Greg Gagne - John Wiley &amp; Sons, Inc)</a></li>
-</ol>
-</div>
-<!-- End Content //-->
-<div class="footer">
+</header>
+<section class="title">Operating System</section>
+<section class="sidebar">
+  <header>
+    <h3>Jadwal</h3>
+  </header>
+  <aside>
+    <p>Hari <br/>Jam <br/>Ruang </p>
+  </aside>
+</section>
+<section class="classinfo">
+  <section class="notice">
+    <header>
+      <h1>PEMBERITAHUAN</h1>
+    </header>
+    <p>Bagi yang hendak mengambil matakuliah ini, Anda <strong>diwajibkan memiliki dan membawa buku Operating System Concepts di setiap pertemuan</strong>. Tidak akan disediakan slide materi untuk perkuliahan ini, karena semua materi sudah ada di buku.</p>
+  </section>
+  <section class="description">
+    <header>
+      <h1>PENGANTAR</h1>
+    </header>
+    <p>Matakuliah ini memperkenalkan desain, implementasi, konsep-konsep dasar serta prinsip-prinsip Sistem Operasi modern. Cakupan matakuliah ini diawali dengan pengantar tentang sistem operasi dan struktur sistem operasi secara umum, dilanjutkan dengan Proses dan Thread, penjadwalan CPU serta masalah yang muncul (dead lock). Bagian kedua akan membahas tentang managemen memori dan managemen berkas serta struktur penyimpanan massal.</p>
+    <p>Dalam matakuliah ini Sistem Operasi yang beredar luas di masyarakat tidak akan dibahas secara khusus, namun membahas konsep serta prinsip-prinsip umumnya. DOS, Windows, dan LINUX akan dibahas sebagai contoh kasus.</p>
+  </section>
+</section>
+
+<section class="material">
+  <header>
+    <h1>MATERI</h1>
+  </header>
+  <ol>
+    <li>Syllabus</li>
+    <li>Introduction to Operating System</li>
+    <li>Operating System Structures</li>
+    <li>Proses + Thread</li>
+    <li>CPU Scheduling</li>
+    <li>Dead Locks</li>
+    <li>Main Memory</li>
+    <li>Virtual Memory</li>
+    <li>File System Interface</li>
+    <li>File System Implementation</li>
+    <li>Mass-Storage Structure</li>
+    <li>Distributed File Systems</li>
+  </ol>
+</section>
+<section class="references">
+  <header>
+    <h1>REFERENSI</h1>
+  </header>
+  <ol>
+    <li><a href="http://www.os-book.com/">Operating System Concepts 8th Edition (Avi Silberschatz, Peter Baer Galvin, Greg Gagne - John Wiley &amp; Sons, Inc)</a></li>
+  </ol>
+</section>
 <?php
 include "../includes/footer.php";
 ?>
-</div>
 </body>
 </html>
diff --git a/tekkom-ti/index.php b/tekkom-ti/index.php
index 50ca7dc..f76bdad 100644
--- a/tekkom-ti/index.php
+++ b/tekkom-ti/index.php
@@ -21,7 +21,7 @@ include "../includes/courses.php";
 <section class="title">Computer Technology</section>
 <section class="sidebar">
   <header>
-    <h3>Kelas</h3>
+    <h3>Jadwal</h3>
   </header>
   <aside>
     <p>Hari <br/>Jam <br/>Ruang </p>