add a first incomplete version of Linuxwochen 2018 talk

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diff --git a/linuxwochen2018/index.html b/linuxwochen2018/index.html
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+<!DOCTYPE html>
+<html>
+<head>
+  <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+  <meta name="Author" content="KaiRo - Robert Kaiser">
+  <title>Mozilla Emerging Technologies</title>
+  <link rel="stylesheet" type="text/css" href="slides.css">
+  <script type="text/javascript" src="slides.js"></script>
+  <link rel="contents" href="#index" title="Überblick">
+  <link rel="index" id="link-toc" href="#toc" title="Inhalt">
+  <link rel="start" id="link-start" href="#index" title="Start">
+</head>
+<body onload="docLoaded();">
+<header id="header"><div id="header-text">Emerging Tech</div>
+  <div id="subheader-text"></div>
+  <a id="headerlogo" href="#index" title="Startseite">Mozilla</a>
+</header>
+<nav id="slidenav">
+  <a href="#toc" id="nav-toc" accesskey="t">toc</a> ||
+  <a href="#index" id="nav-start" accesskey="s">start</a> ||
+  <a href="#" id="nav-prev" accesskey="p" hidden>&lt; back</a>
+  <span id="nav-prev-nolink" class="nolink">&lt; back</span> |
+  <a href="#" id="nav-next" id="goNext" accesskey="n" hidden>fwd &gt;</a>
+  <span id="nav-next-nolink" class="nolink">fwd &gt;</span>
+</nav>
+
+<article id="toc" data-title="Inhalt">
+<h1><span>Inhalt</span></h1>
+<h2>Mozilla Emerging Technologies</h2>
+
+<div class="captionedbox">
+<p class="captionedbox-caption">The following slides are available in this presentation:</p>
+<div class="captionedbox-content">
+<ul id="toc-list">
+</ul>
+</article>
+
+<article id="index" data-title="Start Page" data-seconds="600">
+<h1><span>Mozilla Emerging Technologies</span></h1>
+<h2>New Technologies for the Open Web</h2>
+
+<div class="simplebox decofont">
+<mark><a href="http://home.kairo.at/">Robert Kaiser</a></mark>,
+"KaiRo" &lt;kairo@kairo.at&gt;
+<br><small>Mozilla Tech Speaker</small>
+</div>
+
+<div class="captionedbox">
+<p class="captionedbox-caption decofont">Slides:
+  <a href="https://slides.kairo.at/linuxwochen2018/">https://slides.kairo.at/linuxwochen2018/</a></p>
+<div class="captionedbox-content small">
+<ul class="small">
+  <li>Created for a
+    <a href="https://cfp.linuxwochen.at/de/LWW18/public/events/741">presentation</a>
+    at <a href="http://www.linuxwochen.at/">Linuxwochen 2018</a> in Wien/Vienna.</li>
+  <li>Written in HTML 5 with CSS 3 and JavaScript.</li>
+  <li>Navigation via links on all slides, via access keys
+   (e.g. "n"/Alt+Shift+N for "next") or back/forward arrow keys</li>
+  <li><a href="#toc">Contents</a></li>
+  <li><a rel="license" href="http://creativecommons.org/licenses/by-sa/4.0/"><img
+      alt="Lizenziert unter CC-BY-SA," class="ccinline" src="cc-by-sa.svg"></a>
+    04/2018 Robert Kaiser -
+    "Mozilla", "Firefox" and their logos are
+    <a href="http://www.mozilla.org/foundation/trademarks/list.html">trademarks
+    of Mozilla Foundation</a>.</li>
+</ul>
+</div>
+</div>
+</article>
+
+<article id="mozet" data-title="Emerging Technologies Group">
+<h1><span>Emerging Technologies Group</span></h1>
+
+<div class="simplebox">
+<ul>
+  <li>R&amp;D organization @ Mozilla, a.k.a. <mark>Mozilla Research</mark></li>
+  <li><a href="https://research.mozilla.org/">research.mozilla.org</a></li>
+  <li><a href="https://www.mozilla.org/en-US/technology/">mozilla.org/technology</a></li>
+  <li>Multiple teams for different technologies</li>
+</ul>
+</div>
+</article>
+
+<article id="webxr" data-title="Mixed Reality">
+<h1><span>Mixed Reality (XR)</span></h1>
+
+<div class="simplebox">
+<img src="vrheadset-boy.png" class="slidepic"
+ alt="A-Frame - aframe-io">
+<ul>
+  <li>WebXR - <mark>Virtual &amp; Augmented Reality</mark> (WebVR &amp; AR)</li>
+  <li><a href="https://research.mozilla.org/mixed-reality/">research.mozilla.org/mixed-reality</a></li>
+  <li><a href="https://webvr.info/">webvr.info</a> - WebVR API, <mark>Open Standard</mark></li>
+  <li>In concert with WebGL, WebAudio and Gamepad APIs</li>
+  <li>Windows: Firefox release, Mac: Nightly, Linux: in development</li>
+</ul>
+<p class="ensurepicinbox"></p>
+</div>
+</article>
+
+<article id="aframe" data-title="A-Frame">
+<h1><span>A-Frame - XR Made Simple</span></h1>
+
+<div class="simplebox">
+<img src="aframe-sticker.png" class="slidepic"
+ alt="A-Frame - aframe-io">
+Example:
+<pre>
+&lt;<mark>a-scene</mark>&gt;
+  &lt;a-sphere position="0 1.25 -1" radius="1.25" color="#EF2D5E"&gt;&lt;/a-sphere&gt;
+  &lt;<mark>a-cube</mark> position="-1 0.5 1" rotation="0 0 0" width="1" height="1" depth="1" color="#4CC3D9"&gt;
+    &lt;<mark>a-animation</mark> attribute="rotation" repeat="indefinite" to="0 360 0"&gt;&lt;/a-animation&gt;
+  &lt;/a-cube&gt;
+  &lt;a-cylinder position="1 0.75 1" radius="0.5" height="1.5" color="#FFC65D"&gt;&lt;/a-cylinder&gt;
+  &lt;a-plane rotation="-90 0 0" width="4" height="4" color="#7BC8A4"&gt;&lt;/a-plane&gt;
+  &lt;a-sky color="#ECECEC"&gt;&lt;/a-sky&gt;
+&lt;/a-scene&gt;
+</pre>
+<p><a href="https://codepen.io/mozvr/pen/jqERjQ">edit/view</a>
+- More at <a href="https://aframe.io/">aframe.io</a>
+<p class="ensurepicinbox"></p>
+</div>
+</article>
+
+<article id="codecs" data-title="Open Media Codecs">
+<h1><span>Open Media Codecs - Daala &amp; AV1</span></h1>
+
+<div class="simplebox">
+<img src="av1-comingsoon.png" class="slidepic" alt="AV1 - Coming Soon">
+<ul>
+  <li><a href="https://www.opus-codec.org/">Opus</a>: <mark>royalty-free, open, universal</mark> audio codec</li>
+  <li>Next target: do the same with video</li>
+  <li>Mozilla/Xiph: Daala + Google: VP9 + Cisco: Thor</li>
+  <li><a href="http://aomedia.org/">Alliance for Open Media (AOMedia)</a> for collaboration</li>
+  <li>AV1 bitstream frozen since April 2018</li>
+  <li>Next: De-/Encoding perf, hardware support, ...</li>
+</ul>
+<p class="ensurepicinbox"></p>
+</div>
+</article>
+
+<article id="speech" data-title="Speech &amp; Learning">
+<h1><span>Speech &amp; Machine Learning</span></h1>
+
+<div class="simplebox">
+<img src="speechlearning.png" class="slidepic" alt="Speech Recording + Learning">
+<ul>
+  <li><a href="https://voice.mozilla.org/">Common Voice</a>: Open repository for <mark>voice recordings</mark></li>
+  <li>Machine learning to train speech-to-text (STT) systems</li>
+  <li>DeepSpeech / Pipsqueak: Mozilla STT, open source</li>
+  <li><mark>Offline speech recognition</mark> engine, for security + privacy, can run on RPi3</li>
+  <li><a href="https://blog.mozilla.org/blog/2017/11/29/announcing-the-initial-release-of-mozillas-open-source-speech-recognition-model-and-voice-dataset/">Only
+    6.5% error rate on first released model</a></li>
+  <li><a href="https://research.mozilla.org/machine-learning/">research.mozilla.org/machine-learning</a></li>
+</ul>
+<p class="ensurepicinbox"></p>
+</div>
+</article>
+
+<article id="rust" data-title="Rust">
+<h1><span>Programmiersprache - Rust</span></h1>
+
+<div class="simplebox">
+</div>
+</article>
+
+<article id="servo" data-title="Servo Web-Engine">
+<h1><span>Web-Engine - Servo</span></h1>
+
+<div class="simplebox">
+</div>
+</article>
+
+<article id="wasm" data-title="WebAssembly">
+<h1><span>WebAssembly</span></h1>
+
+<div class="simplebox">
+</div>
+</article>
+
+<article id="iot" data-title="Web of Things">
+<h1><span>IoT - Things Gateway</span></h1>
+
+<div class="simplebox">
+</div>
+</article>
+
+<article id="end" data-title="Ende">
+
+<div class="simplebox">
+<h1 class="cent" style="position: relative; z-index: 3; color: #FFFFFF; font-size: 2.5em;">Fragen?</h1>
+<img src="mister_tricorder.jpg" class="sshot"
+     style="width: 100%; margin-top: -4.5em; position: relative; z-index: 1;"
+     alt="Data &amp; Mister Tricorder">
+</div>
+</article>
+
+</body>
+</html>

diff --git a/linuxwochen2018/mister_tricorder.jpg b/linuxwochen2018/mister_tricorder.jpg
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diff --git a/linuxwochen2018/slides.css b/linuxwochen2018/slides.css
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+/**************************
+ * styles for talk slides *
+ *    by Robert Kaiser    *
+ *    <kairo@kairo.at>    *
+ *   (for FOSDEM 2013)    *
+ **************************/
+
+
+/***** base style *****/
+
+@font-face {
+  font-family: 'Open Sans';
+  src: url('template/OpenSans-Regular-webfont.woff');
+  font-weight: normal;
+  font-style: normal;
+}
+
+@font-face {
+  font-family: 'Open Sans';
+  src: url('template/OpenSans-Semibold-webfont.woff');
+  font-weight: bold;
+  font-style: normal;
+}
+
+@font-face {
+  font-family: 'Open Sans';
+  src: url('template/OpenSans-Italic-webfont.woff');
+  font-weight: normal;
+  font-style: italic;
+}
+
+@font-face {
+  font-family: 'Zilla Slab';
+  src: url('template/ZillaSlab-Regular.woff2');
+  font-weight: normal;
+  font-style: normal;
+}
+
+@font-face {
+  font-family: 'Zilla Slab';
+  src: url('template/ZillaSlab-Bold.woff2');
+  font-weight: bold;
+  font-style: normal;
+}
+
+@font-face {
+  font-family: 'Zilla Slab Highlight';
+  src: url('template/ZillaSlabHighlight-Regular.woff2');
+  font-weight: normal;
+  font-style: normal;
+}
+
+@font-face {
+  font-family: 'Zilla Slab Highlight';
+  src: url('template/ZillaSlabHighlight-Bold.woff2');
+  font-weight: bold;
+  font-style: normal;
+}
+
+html {
+  overflow: hidden; /* to make translations not paint scrollbars */
+  background: white;
+  height: 100%;
+}
+
+body {
+  margin: 0px;
+  padding: 0px;
+  border: 0px;
+  font-family: "Open Sans", sans-serif;
+  font-size: 2em;
+  color: black;
+  height: 100%;
+}
+
+ul {
+  padding-left: 1.2em;
+  margin-bottom: 0.5em;
+}
+
+ul:first-child,
+ul:last-child {
+  margin-top: 0;
+}
+
+#header {
+  height: 44px;
+  position: relative;
+  font-family: "Zilla Slab", monospace;
+  border-bottom: 3px solid black;
+}
+
+#headerlogo {
+  position: absolute;
+  display: block;
+  right: 2px;
+  top: 2px;
+  text-indent: -2000px;
+  font-size: 1px;
+  overflow: hidden;
+  height: 40px;
+  width: 140px;
+  background: url("template/mozilla_logo2017.svg") no-repeat;
+}
+
+#header-text {
+  position: relative;
+  top: 5px;
+  left: 25px;
+  width: 200px;
+  width: -moz-fit-content;
+  width: -webkit-fit-content;
+  width: fit-content;
+  padding: 0 5px;
+  font-size: 20px;
+  font-weight: bold;
+  color: white;
+  background-color: black;
+}
+
+#header-text.neartime {
+  color: #00FFFF;
+}
+
+#header-text.ontime {
+  color: #54FFBD;
+}
+
+#header-text.overtime {
+  color: #FF4F5E;
+}
+
+#subheader-text {
+  color: black;
+  position: relative;
+  top: 3px;
+  left: 25px;
+  width: calc(100% - 50px);
+  padding: 0 5px;
+  font-size: 10px;
+}
+
+#slidenav {
+  position: absolute;
+  right: 200px;
+  top: 15px;
+  font-family: "Zilla Slab", monospace;
+  font-size: 10px;
+}
+
+#slidenav a:link,
+#slidenav a:visited {
+  color: black;
+}
+
+#slidenav a:hover,
+#slidenav a:active {
+  color: #959595;
+}
+
+#slidenav .nolink {
+  color: #E7E5E2;
+}
+
+article {
+  position: absolute;
+  width: 100%;
+  /* header is 40px, 7px to have a bit of distance,
+   * 3px height-reducing on the bottom for safety */
+  top: 47px;
+  height: calc(100% - 50px);
+  overflow: auto;
+
+  transition-property: transform, opacity;
+  transition-duration: 3s;
+  transition-timing-function: ease;
+  transform-origin: center 5em;
+
+  opacity: 0;
+/*
+  transform: translate(-100%, 0);
+*/
+/*
+  transform: scale(0.1) rotate(360deg) translate(-200%, 0);
+*/
+  transform: scale(0.1) translate(-400%, 0);
+}
+
+article[aria-selected="true"] {
+  opacity: 1;
+  transform: scale(1) rotate(0deg) translate(0, 0);
+}
+
+article[aria-selected="true"] ~ article {
+  opacity: 0;
+/*
+  transform: translate(100%, 0);
+*/
+/*
+  transform: scale(0.1) rotate(-360deg) translate(200%, 0);
+*/
+  transform: scale(0.1) translate(400%, 0);
+}
+
+/***** headers *****/
+
+h1, h2, h3, h4 {
+  margin: 0.5em 0;
+  font-family: "Zilla Slab", monospace;
+  font-weight: bold;
+  color: black;
+  text-align: center;
+}
+
+h1 {
+  font-family: "Zilla Slab Highlight", "Zilla Slab", monospace;
+  margin-top: 0.5em;
+  font-size: 1.7em;
+}
+
+h1 span {
+  font-family: "Zilla Slab", monospace;
+  margin-top: 0.5em;
+  font-size: 1.7em;
+  background-color: black;
+  color: white;
+  padding: 0 10px;
+}
+
+h2 {
+  font-size: 1.3em;
+}
+
+h3 {
+  font-size: 1.1em;
+}
+
+h4 {
+  font-size: 1em;
+  text-align: left;
+}
+
+/***** boxes *****/
+
+.simplebox {
+  padding: 0.5em;
+}
+
+.captionedbox {
+  padding: 0px;
+}
+
+.simplebox,
+.captionedbox {
+  margin: 1em;
+  background-color: white;
+  /* box-shadow: 0 0 0 1px black inset; */
+  /* border-bottom: 1px solid black; */
+}
+
+.captionedbox-content {
+  margin: 0;
+  padding: 0.5em;
+  border: 0px;
+  border-top: 1px solid black;
+}
+
+.captionedbox-caption {
+  margin: 0;
+  padding: 0.5em;
+  font-weight: bold;
+}
+
+.simplebox + .simplebox,
+.captionedbox + .simplebox,
+.simplebox + .captionedbox,
+.captionedbox + .captionedbox {
+  border-top: 1px solid black;
+}
+
+/***** misc formatting *****/
+
+mark {
+  font-family: "Zilla Slab", monospace;
+  font-weight: bold;
+  color: black;
+  background-color: #FFF44F;
+}
+
+.decofont {
+  font-family: "Zilla Slab", monospace;
+}
+
+.border {
+  border: 1px solid black;
+  padding: 0.5em;
+}
+
+.sshot {
+  /* box-shadow: black 1px 1px 3px 2px; */
+}
+
+.slidepic {
+  float: right;
+  margin-left: .5em;
+  max-height: 20em;
+  max-width: 25%;
+}
+
+.ensurepicinbox {
+  clear: both;
+  font-size: 1px;
+  margin: 0;
+}
+
+.largetext {
+  font-size: 2em;
+}
+
+ul > li {
+  margin: 0.5em 0;
+}
+
+.columns2 {
+  -moz-columns: 2;
+}
+
+ul.nobullets > li {
+  list-style-type: none;
+}
+
+ul.arrows > li {
+  list-style-type: none;
+}
+ul.arrows > li:before {
+  content: "\21d2\20"; /* \2192 would be single thin arrow, hex 20 is space */
+}
+
+.cent {
+  text-align: center;
+}
+
+.topmargin {
+  margin-top: 0.5em;
+}
+
+.akey {
+  text-decoration: underline;
+}
+
+a:link, a:visited { color: #00458B; text-decoration: none; }
+a:hover, a:active { color: #959595; text-decoration: underline; }
+
+mark a:link, mark a:visited { color: #005E5E; }
+mark a:hover, mark a:active { color: #005E5E; }
+
+pre { margin: 0; }
+
+.ccinline {
+  border-width: 0;
+  vertical-align: bottom;
+  height: 1.75em;
+}
+
+/***** small stuff *****/
+
+.small,
+.small {
+  font-size: 0.75em;
+}
+
+ul.small,
+.small ul {
+  padding: 0px;
+  border: 0px;
+  margin: 0px 0px 0px 1em;
+}
+
+ul.small > li
+.small ul > li {
+  margin: 0px;
+  padding: 0px;
+  border: 0px;
+}
+
+/***** specific slides *****/
+

diff --git a/linuxwochen2018/slides.js b/linuxwochen2018/slides.js
new file mode 100644 (file)
index 0000000..cd9035c
--- /dev/null
+++ b/linuxwochen2018/slides.js
@@ -0,0 +1,205 @@
+/******************************
+ * JavaScript for talk slides *
+ *      by Robert Kaiser      *
+ *      <kairo@kairo.at>      *
+ *     (for FOSDEM 2011)      *
+ ******************************/
+
+var slides = {};
+var articleNodes;
+var currentSlide;
+var currentIdx;
+var defaultIdx = 1; // set to slide index to show by default
+var firstIdx = 2; // set no value if to use first available
+var lastIdx; // set no value if to use last available
+
+var pageTitle, headerText, subHeaderText;
+var navPrev, navNext, navPrevNolink, navNextNolink;
+
+// Slide timer - color variation of headerText
+// Time per slide is total presentation length divided by number of slides
+// except start and end slide.
+var presLengthSeconds = 30 * 60;
+var slideStart, timerMSec;
+
+// Called when the document has been loaded.
+function docLoaded() {
+  pageTitle = document.getElementsByTagName("title")[0];
+  headerText = document.getElementById("header-text");
+  subHeaderText = document.getElementById("subheader-text");
+  navPrev = document.getElementById("nav-prev");
+  navNext = document.getElementById("nav-next");
+  navPrevNolink = document.getElementById("nav-prev-nolink");
+  navNextNolink = document.getElementById("nav-next-nolink");
+  articleNodes = document.getElementsByTagName("article");
+
+  if (!firstIdx)
+    firstIdx = 0;
+  if (!lastIdx)
+    lastIdx = articleNodes.length - 1;
+  var slideSeconds = presLengthSeconds / (lastIdx - firstIdx);
+  timerMSec = 1000 * (slideSeconds / 3);
+
+  // Get a list of all slides (articles).
+  subHeaderText.textContent = articleNodes.length + " slides...";
+  for (var i = 0; i < articleNodes.length; ++i) {
+    subHeaderText.textContent = "Indexing slide " + i + " / " + articleNodes.length;
+    if (!articleNodes[i].id)
+      articleNodes[i].id = "slide_" + i;
+
+    slides[articleNodes[i].id] = {
+        "idx": i,
+        "name": articleNodes[i].id,
+        "title": articleNodes[i].dataset.title ? articleNodes[i].dataset.title : articleNodes[i].id,
+        "obj": articleNodes[i],
+        "timeSeconds": articleNodes[i].dataset.seconds ? articleNodes[i].dataset.seconds : slideSeconds,
+    };
+
+    if (location.hash.length &&
+        (location.hash == "#" + articleNodes[i].id || location.hash == "#" + i)) {
+      articleNodes[i].setAttribute("aria-selected", "true");
+      currentSlide = slides[articleNodes[i].id];
+      currentIdx = i;
+    }
+  }
+
+  if (!currentSlide) {
+    currentIdx = defaultIdx;
+    currentSlide = slides[articleNodes[currentIdx].id];
+    currentSlide.obj.setAttribute("aria-selected", "true");
+    location.hash = "#" + currentSlide.name;
+  }
+  updateDisplay();
+}
+
+// Called when the hash part of the location changes.
+function locationHashChanged() {
+  if (location.hash.length > 1) {
+    var hashtag = location.hash.substring(1);
+    // If not a number, treat as ID
+    if (isNaN(hashtag) && slides[hashtag]) {
+      currentSlide.obj.removeAttribute("aria-selected");
+      currentSlide = slides[hashtag];
+      currentIdx = currentSlide.idx;
+      currentSlide.obj.setAttribute("aria-selected", "true");
+      updateDisplay();
+    }
+    else if (articleNodes[hashtag]) {
+      currentSlide.obj.removeAttribute("aria-selected");
+      currentIdx = hashtag;
+      currentSlide = slides[articleNodes[currentIdx].id];
+      currentSlide.obj.setAttribute("aria-selected", "true");
+      updateDisplay();
+    }
+  }
+}
+window.onhashchange = locationHashChanged;
+
+// Update the display after we updated what slide is shown.
+function updateDisplay() {
+  if (currentIdx >= firstIdx && currentIdx <= lastIdx &&
+      currentSlide.name != "toc")
+    subHeaderText.textContent = (currentIdx - firstIdx + 1) + "/" +
+                                (lastIdx - firstIdx + 1) + " - " +
+                                currentSlide.title;
+  else
+    subHeaderText.textContent = currentSlide.title;
+  pageTitle.textContent = headerText.textContent + ": " + currentSlide.title;
+  if (currentIdx > firstIdx && currentSlide.name != "toc") {
+    navPrev.hidden = false;
+    navPrev.href = "#" + articleNodes[currentIdx - 1].id;
+    navPrevNolink.hidden = true;
+  }
+  else {
+    navPrev.hidden = true;
+    navPrevNolink.hidden = false;
+  }
+  if (currentIdx < lastIdx && currentSlide.name != "toc") {
+    navNext.hidden = false;
+    navNext.href = "#" + articleNodes[currentIdx + 1].id;
+    navNextNolink.hidden = true;
+  }
+  else {
+    navNext.hidden = true;
+    navNextNolink.hidden = false;
+  }
+  headerText.className = "";
+  slideStart = new Date();
+  timerMSec = 1000 * (currentSlide.timeSeconds / 3);
+  if (currentSlide.name == "toc")
+    createTOC();
+  else
+    setTimeout(timerFired, timerMSec);
+}
+
+// Create TOC list.
+function createTOC() {
+ var list = document.getElementById("toc-list");
+ if (!list.getElementsByTagName("li").length) {
+   for (var slide in slides) {
+     if (slide != "toc") {
+       var item = document.createElement("li");
+       var link = document.createElement("a");
+       var slideHeaders = slides[slide].obj.getElementsByTagName("h1");
+       if (slideHeaders.length)
+         link.textContent = slideHeaders[0].textContent;
+       else
+         link.textContent = slides[slide].title;
+       link.href = "#" + slides[slide].name;
+       item.appendChild(link);
+       list.appendChild(item);
+     }
+   }
+ }
+}
+
+// Do timed color variation on slides.
+function timerFired() {
+  var slideCurrent = new Date();
+  var secondsDiff = Math.round((slideCurrent.getTime() - slideStart.getTime()) / 1000);
+  if (secondsDiff >= currentSlide.timeSeconds) {
+    headerText.className = "overtime";
+  }
+  else if (secondsDiff >= Math.round(2 * currentSlide.timeSeconds / 3)) {
+    headerText.className = "ontime";
+    setTimeout(timerFired, timerMSec);
+  }
+  else if (secondsDiff >= Math.round(currentSlide.timeSeconds / 3)) {
+    headerText.className = "neartime";
+    setTimeout(timerFired, timerMSec);
+  }
+  else {
+    // We should never come here, but if we do, go into a 100ms loop until we get over the upcoming step.
+    setTimeout(timerFired, 100);
+  }
+}
+
+// Keyboard/click nav functionality, mostly inherited from FOSDEM 2007.
+(function() {
+  function go(where) {
+    where = where || "next";
+    var navElem = document.getElementById("nav-" + where);
+    if (!navElem.hidden)
+      window.location.href = navElem.href;
+  }
+
+  function handleClick(e) {
+    e = e || event;
+    var target = (window.event) ? e.srcElement : e.target;
+    if (e.which == 1 && target.nodeName != "A" && target.nodeName != "VIDEO")
+      go("next");
+  }
+
+  function handleKeyPress(e) {
+    e = e || event;
+    switch (e.keyCode) {
+      case e.DOM_VK_LEFT:
+        go("prev"); break;
+      case e.DOM_VK_RIGHT:
+        go("next"); break;
+    }
+  }
+
+  window.onclick = handleClick;
+  window.onkeypress = handleKeyPress;
+})();

diff --git a/linuxwochen2018/speechlearning.png b/linuxwochen2018/speechlearning.png
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diff --git a/linuxwochen2018/template/OpenSans-Italic-webfont.woff b/linuxwochen2018/template/OpenSans-Italic-webfont.woff
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diff --git a/linuxwochen2018/template/OpenSans-Regular-webfont.woff b/linuxwochen2018/template/OpenSans-Regular-webfont.woff
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diff --git a/linuxwochen2018/template/OpenSans-Semibold-webfont.woff b/linuxwochen2018/template/OpenSans-Semibold-webfont.woff
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diff --git a/linuxwochen2018/template/ZillaSlab-Bold.woff2 b/linuxwochen2018/template/ZillaSlab-Bold.woff2
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diff --git a/linuxwochen2018/template/ZillaSlab-Regular.woff2 b/linuxwochen2018/template/ZillaSlab-Regular.woff2
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diff --git a/linuxwochen2018/template/ZillaSlabHighlight-Bold.woff2 b/linuxwochen2018/template/ZillaSlabHighlight-Bold.woff2
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diff --git a/linuxwochen2018/template/ZillaSlabHighlight-Regular.woff2 b/linuxwochen2018/template/ZillaSlabHighlight-Regular.woff2
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diff --git a/linuxwochen2018/template/mozilla-tab.png b/linuxwochen2018/template/mozilla-tab.png
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index 0000000..87f8ef9
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diff --git a/linuxwochen2018/template/mozilla_logo2017.svg b/linuxwochen2018/template/mozilla_logo2017.svg
new file mode 100644 (file)
index 0000000..08f06e0
--- /dev/null
+++ b/linuxwochen2018/template/mozilla_logo2017.svg
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Generator: Adobe Illustrator 20.1.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
+<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+        viewBox="0 0 360 102.8" style="enable-background:new 0 0 360 102.8;" xml:space="preserve">
+<style type="text/css">
+       .st0{fill:#FFFFFF;}
+</style>
+<g>
+       <rect y="-0.2" width="360" height="102.9"/>
+       <path class="st0" d="M343.8,73.7c-0.7,0.2-1.3,0.3-1.9,0.3c-2.1,0-3.1-0.9-3.1-3.5V51c0-10.3-8.2-15.3-17.9-15.3
+               c-7.4,0-11.4,0.9-19.3,4.1L300,50.2l10.3,1.1l1.5-5.1c2.1-1.1,4.2-1.3,6.9-1.3c7.3,0,7.4,5.5,7.4,10.1v1.5
+               c-2.3-0.3-4.9-0.4-7.4-0.4c-10.3,0-21,2.6-21,13.7c0,9.4,7.4,12.9,13.9,12.9c7.3,0,11.9-4.4,14.5-9c0.6,5.5,3.9,9,9.9,9
+               c2.8,0,5.7-0.8,8.1-2.1L343.8,73.7z M316.2,73.4c-3.9,0-5.3-2.3-5.3-5.2c0-4.9,4-6.2,8.6-6.2c2.1,0,4.4,0.3,6.5,0.6
+               C325.7,70.1,320.8,73.4,316.2,73.4z M298.9,12.9l-19.5,68.7h-12.7l19.5-68.7H298.9z M272.7,12.9l-19.5,68.7h-12.7L260,12.9H272.7z
+                M218.7,36.6h13.5v16.2h-13.5V36.6z M218.7,65.5h13.5v16.2h-13.5V65.5z M199,64.9l10.2,1l-2.8,15.8h-39.3l-1.3-6.8l24.8-28.5h-14.1
+               l-2,7l-9.3-1l1.6-15.8h39.5l1,6.8l-25,28.5h14.6L199,64.9z M134.5,35.7c-16.2,0-24.2,10.9-24.2,24.1c0,14.4,9.6,22.9,23.5,22.9
+               c14.4,0,24.8-9.1,24.8-23.5C158.6,46.6,150.7,35.7,134.5,35.7z M134.2,72.7c-7,0-10.6-6-10.6-13.8c0-8.5,4.1-13.4,10.7-13.4
+               c6.1,0,11,4.1,11,13.2C145.3,67.4,140.9,72.7,134.2,72.7z M98.7,71.8h6v9.8H85.9V56.3c0-7.8-2.6-10.8-7.7-10.8
+               c-6.2,0-8.7,4.4-8.7,10.7v15.7h6v9.8H56.6V56.3c0-7.8-2.6-10.8-7.7-10.8c-6.2,0-8.7,4.4-8.7,10.7v15.7h8.6v9.8H21.4v-9.8h6V46.4h-6
+               v-9.8h18.9v6.8c2.7-4.8,7.4-7.7,13.7-7.7c6.5,0,12.5,3.1,14.7,9.7c2.5-6,7.6-9.7,14.7-9.7c8.1,0,15.5,4.9,15.5,15.6V71.8z"/>
+</g>
+</svg>

diff --git a/linuxwochen2018/vrheadset-boy.png b/linuxwochen2018/vrheadset-boy.png
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