Minimized slidy files.

2 files changed, 575 insertions, 3276 deletions

diff --git a/slidy/slidy.min.css b/slidy/slidy.min.css
index 9cb2fab64..866e06771 100644
--- a/slidy/slidy.min.css
+++ b/slidy/slidy.min.css
@@ -1,400 +1,93 @@
-/* slidy.css
 
-   Copyright (c) 2005-2010 W3C (MIT, ERCIM, Keio), All Rights Reserved.
-   W3C liability, trademark, document use and software licensing
-   rules apply, see:
-
-   http://www.w3.org/Consortium/Legal/copyright-documents
-   http://www.w3.org/Consortium/Legal/copyright-software
-*/
 body
-{
-  margin: 0 0 0 0;
-  padding: 0 0 0 0;
-  width: 100%;
-  height: 100%;
-  color: black;
-  background-color: white;
-  font-family: "Gill Sans MT", "Gill Sans", GillSans, sans-serif;
-  font-size: 14pt;
-}
-
-div.toolbar {
-  position: fixed; z-index: 200;
-  top: auto; bottom: 0; left: 0; right: 0;
-  height: 1.2em; text-align: right;
-  padding-left: 1em;
-  padding-right: 1em; 
-  font-size: 60%;
-  color: red;
-  background-color: rgb(240,240,240);
-  border-top: solid 1px rgb(180,180,180);
-}
-
-div.toolbar span.copyright {
-  color: black;
-  margin-left: 0.5em;
-}
-
-div.initial_prompt {
-  position: absolute;
-  z-index: 1000;
-  bottom: 1.2em;
-  width: 100%;
-  background-color: rgb(200,200,200);
-  opacity: 0.35;
-  background-color: rgb(200,200,200, 0.35);
-  cursor: pointer;
-}
-
-div.initial_prompt p.help {
-  text-align: center;
-}
-
-div.initial_prompt p.close {
-  text-align: right;
-  font-style: italic;
-}
-
-div.slidy_toc {
-  position: absolute;
-  z-index: 300;
-  width: 60%;
-  max-width: 30em;
-  height: 30em;
-  overflow: auto;
-  top: auto;
-  right: auto;
-  left: 4em;
-  bottom: 4em;
-  padding: 1em;
-  background: rgb(240,240,240);
-  border-style: solid;
-  border-width: 2px;
-  font-size: 60%;
-}
-
-div.slidy_toc .toc_heading {
-  text-align: center;
-  width: 100%;
-  margin: 0;
-  margin-bottom: 1em;
-  border-bottom-style: solid;
-  border-bottom-color: rgb(180,180,180);
-  border-bottom-width: 1px;
-}
-
-div.slide {
-  z-index: 20;
-  margin: 0 0 0 0;
-  padding-top: 0;
-  padding-bottom: 0;
-  padding-left: 20px;
-  padding-right: 20px;
-  border-width: 0;
-  clear: both;
-  top: 0;
-  bottom: 0;
-  left: 0;
-  right: 0;
-  line-height: 120%;
-  background-color: transparent;
-}
-
-div.background {
-  display: none;
-}
-
-div.handout {
-  margin-left: 20px;
-  margin-right: 20px;
-}
-
-div.slide.titlepage {
-  text-align: center;
-}
-
-div.slide.titlepage.h1 {
-  padding-top: 10%;
-}
-
-div.slide h1 {
-  padding-left: 0;
-  padding-right: 20pt;
-  padding-top: 4pt;
-  padding-bottom: 4pt;
-  margin-top: 0;
-  margin-left: 0;
-  margin-right: 60pt;
-  margin-bottom: 0.5em;
-  display: block; 
-  font-size: 160%;
-  line-height: 1.2em;
-  background: transparent;
-}
-
-div.toc {
-  position: absolute;
-  top: auto;
-  bottom: 4em;
-  left: 4em;
-  right: auto;
-  width: 60%;
-  max-width: 30em;
-  height: 30em;
-  border: solid thin black;
-  padding: 1em;
-  background: rgb(240,240,240);
-  color: black;
-  z-index: 300;
-  overflow: auto;
-  display: block;
-  visibility: visible;
-}
-
-div.toc-heading {
-  width: 100%;
-  border-bottom: solid 1px rgb(180,180,180);
-  margin-bottom: 1em;
-  text-align: center;
-}
-
-pre {
- font-size: 80%;
- font-weight: bold;
- line-height: 120%;
- padding-top: 0.2em;
- padding-bottom: 0.2em;
- padding-left: 1em;
- padding-right: 1em;
- border-style: solid;
- border-left-width: 1em;
- border-top-width: thin;
- border-right-width: thin;
- border-bottom-width: thin;
- border-color: #95ABD0;
- color: #00428C;
- background-color: #E4E5E7;
-}
-
-li pre { margin-left: 0; }
-
-blockquote { font-style: italic }
-
-img { background-color: transparent }
-
-p.copyright { font-size: smaller }
-
-.center { text-align: center }
-.footnote { font-size: smaller; margin-left: 2em; }
-
-a img { border-width: 0; border-style: none }
-
-a:visited { color: navy }
-a:link { color: navy }
-a:hover { color: red; text-decoration: underline }
-a:active { color: red; text-decoration: underline }
-
-a {text-decoration: none}
-.navbar a:link {color: white}
-.navbar a:visited {color: yellow}
-.navbar a:active {color: red}
-.navbar a:hover {color: red}
-
-ul { list-style-type: square; }
-ul ul { list-style-type: disc; }
-ul ul ul { list-style-type: circle; }
-ul ul ul ul { list-style-type: disc; }
-li { margin-left: 0.5em; margin-top: 0.5em; }
-li li { font-size: 85%; font-style: italic }
-li li li { font-size: 85%; font-style: normal }
-
+{margin:0 0 0 0;padding:0 0 0 0;width:100%;height:100%;color:black;background-color:white;font-family:"Gill Sans MT","Gill Sans",GillSans,sans-serif;font-size:14pt;}
+div.toolbar{position:fixed;z-index:200;top:auto;bottom:0;left:0;right:0;height:1.2em;text-align:right;padding-left:1em;padding-right:1em;font-size:60%;color:red;background-color:rgb(240,240,240);border-top:solid 1px rgb(180,180,180);}
+div.toolbar span.copyright{color:black;margin-left:0.5em;}
+div.initial_prompt{position:absolute;z-index:1000;bottom:1.2em;width:100%;background-color:rgb(200,200,200);opacity:0.35;background-color:rgb(200,200,200,0.35);cursor:pointer;}
+div.initial_prompt p.help{text-align:center;}
+div.initial_prompt p.close{text-align:right;font-style:italic;}
+div.slidy_toc{position:absolute;z-index:300;width:60%;max-width:30em;height:30em;overflow:auto;top:auto;right:auto;left:4em;bottom:4em;padding:1em;background:rgb(240,240,240);border-style:solid;border-width:2px;font-size:60%;}
+div.slidy_toc.toc_heading{text-align:center;width:100%;margin:0;margin-bottom:1em;border-bottom-style:solid;border-bottom-color:rgb(180,180,180);border-bottom-width:1px;}
+div.slide{z-index:20;margin:0 0 0 0;padding-top:0;padding-bottom:0;padding-left:20px;padding-right:20px;border-width:0;clear:both;top:0;bottom:0;left:0;right:0;line-height:120%;background-color:transparent;}
+div.background{display:none;}
+div.handout{margin-left:20px;margin-right:20px;}
+div.slide.titlepage{text-align:center;}
+div.slide.titlepage.h1{padding-top:10%;}
+div.slide h1{padding-left:0;padding-right:20pt;padding-top:4pt;padding-bottom:4pt;margin-top:0;margin-left:0;margin-right:60pt;margin-bottom:0.5em;display:block;font-size:160%;line-height:1.2em;background:transparent;}
+div.toc{position:absolute;top:auto;bottom:4em;left:4em;right:auto;width:60%;max-width:30em;height:30em;border:solid thin black;padding:1em;background:rgb(240,240,240);color:black;z-index:300;overflow:auto;display:block;visibility:visible;}
+div.toc-heading{width:100%;border-bottom:solid 1px rgb(180,180,180);margin-bottom:1em;text-align:center;}
+pre{font-size:80%;font-weight:bold;line-height:120%;padding-top:0.2em;padding-bottom:0.2em;padding-left:1em;padding-right:1em;border-style:solid;border-left-width:1em;border-top-width:thin;border-right-width:thin;border-bottom-width:thin;border-color:#95ABD0;color:#00428C;background-color:#E4E5E7;}
+li pre{margin-left:0;}
+blockquote{font-style:italic}
+img{background-color:transparent}
+p.copyright{font-size:smaller}.center{text-align:center}.footnote{font-size:smaller;margin-left:2em;}
+a img{border-width:0;border-style:none}
+a:visited{color:navy}
+a:link{color:navy}
+a:hover{color:red;text-decoration:underline}
+a:active{color:red;text-decoration:underline}
+a{text-decoration:none}.navbar a:link{color:white}.navbar a:visited{color:yellow}.navbar a:active{color:red}.navbar a:hover{color:red}
+ul{list-style-type:square;}
+ul ul{list-style-type:disc;}
+ul ul ul{list-style-type:circle;}
+ul ul ul ul{list-style-type:disc;}
+li{margin-left:0.5em;margin-top:0.5em;}
+li li{font-size:85%;font-style:italic}
+li li li{font-size:85%;font-style:normal}
 div dt
-{
-  margin-left: 0;
-  margin-top: 1em;
-  margin-bottom: 0.5em;
-  font-weight: bold;
-}
+{margin-left:0;margin-top:1em;margin-bottom:0.5em;font-weight:bold;}
 div dd
-{
-  margin-left: 2em;
-  margin-bottom: 0.5em;
-}
-
-
-p,pre,ul,ol,blockquote,h2,h3,h4,h5,h6,dl,table {
-  margin-left: 1em;
-  margin-right: 1em;
-}
-
-p.subhead { font-weight: bold; margin-top: 2em; }
-
-.smaller { font-size: smaller }
-.bigger { font-size: 130% }
-
-td,th { padding: 0.2em }
-
-ul {
-  margin: 0.5em 1.5em 0.5em 1.5em;
-  padding: 0;
-}
-
-ol {
-  margin: 0.5em 1.5em 0.5em 1.5em;
-  padding: 0;
-}
-
-ul { list-style-type: square; }
-ul ul { list-style-type: disc; }
-ul ul ul { list-style-type: circle; }
-ul ul ul ul { list-style-type: disc; }
-
-ul li { 
-  list-style: square;
-  margin: 0.1em 0em 0.6em 0;
-  padding: 0 0 0 0;
-  line-height: 140%;
-}
-
-ol li { 
-  margin: 0.1em 0em 0.6em 1.5em;
-  padding: 0 0 0 0px;
-  line-height: 140%;
-  list-style-type: decimal;
-}
-
-li ul li { 
-  font-size: 85%; 
-  font-style: italic;
-  list-style-type: disc;
-  background: transparent;
-  padding: 0 0 0 0;
-}
-li li ul li { 
-  font-size: 85%; 
-  font-style: normal;
-  list-style-type: circle;
-  background: transparent;
-  padding: 0 0 0 0;
-}
-li li li ul li {
-  list-style-type: disc;
-  background: transparent;
-  padding: 0 0 0 0;
-}
-
-li ol li {
-  list-style-type: decimal;
-}
-
-
-li li ol li {
-  list-style-type: decimal;
-}
-
-/*
- setting class="outline on ol or ul makes it behave as an
- ouline list where blocklevel content in li elements is
- hidden by default and can be expanded or collapsed with
- mouse click. Set class="expand" on li to override default
-*/
-
-ol.outline li:hover { cursor: pointer }
-ol.outline li.nofold:hover { cursor: default }
-
-ul.outline li:hover { cursor: pointer }
-ul.outline li.nofold:hover { cursor: default }
-
-ol.outline { list-style:decimal; }
-ol.outline ol { list-style-type:lower-alpha }
-
-ol.outline li.nofold {
-  padding: 0 0 0 20px;
-  background: transparent url(../graphics/nofold-dim.gif) no-repeat 0px 0.5em;
-}
-ol.outline li.unfolded {
-  padding: 0 0 0 20px;
-  background: transparent url(../graphics/fold-dim.gif) no-repeat 0px 0.5em;
-}
-ol.outline li.folded {
-  padding: 0 0 0 20px;
-  background: transparent url(../graphics/unfold-dim.gif) no-repeat 0px 0.5em;
-}
-ol.outline li.unfolded:hover {
-  padding: 0 0 0 20px;
-  background: transparent url(../graphics/fold.gif) no-repeat 0px 0.5em;
-}
-ol.outline li.folded:hover {
-  padding: 0 0 0 20px;
-  background: transparent url(../graphics/unfold.gif) no-repeat 0px 0.5em;
-}
-
-ul.outline li.nofold {
-  padding: 0 0 0 20px;
-  background: transparent url(../graphics/nofold-dim.gif) no-repeat 0px 0.5em;
-}
-ul.outline li.unfolded {
-  padding: 0 0 0 20px;
-  background: transparent url(../graphics/fold-dim.gif) no-repeat 0px 0.5em;
-}
-ul.outline li.folded {
-  padding: 0 0 0 20px;
-  background: transparent url(../graphics/unfold-dim.gif) no-repeat 0px 0.5em;
-}
-ul.outline li.unfolded:hover {
-  padding: 0 0 0 20px;
-  background: transparent url(../graphics/fold.gif) no-repeat 0px 0.5em;
-}
-ul.outline li.folded:hover {
-  padding: 0 0 0 20px;
-  background: transparent url(../graphics/unfold.gif) no-repeat 0px 0.5em;
-}
-
-/* for slides with class "title" in table of contents */
-a.titleslide { font-weight: bold; font-style: italic }
-
-/*
- hide images for work around for save as bug
- where browsers fail to save images used by CSS
-*/
-img.hidden { display: none; visibility: hidden }
-div.initial_prompt { display: none; visibility: hidden }
-
-  div.slide {
-     visibility: visible;
-     position: inherit;
-  }
-  div.handout {
-     border-top-style: solid;
-     border-top-width: thin;
-     border-top-color: black;
-  }
-
-@media screen {
-  .hidden { display: none; visibility: visible }
-
-  div.slide.hidden { display: block; visibility: visible }
-  div.handout.hidden { display: block; visibility: visible }
-  div.background { display: none; visibility: hidden }
-  body.single_slide div.initial_prompt { display: block; visibility: visible }
-  body.single_slide div.background { display: block; visibility: visible }
-  body.single_slide div.background.hidden { display: none; visibility: hidden }
-  body.single_slide .invisible { visibility: hidden }
-  body.single_slide .hidden { display: none; visibility: hidden }
-  body.single_slide div.slide { position: absolute }
-  body.single_slide div.handout { display: none; visibility: hidden }
-}
-
-@media print {
-  .hidden { display: block; visibility: visible }
-
-  div.slide pre { font-size: 60%; padding-left: 0.5em; }
-  div.toolbar { display: none; visibility: hidden; }
-  div.slidy_toc { display: none; visibility: hidden; }
-  div.background { display: none; visibility: hidden; }
-  div.slide { page-break-before: always }
-  /* :first-child isn't reliable for print media */
-  div.slide.first-slide { page-break-before: avoid }
-}
-
+{margin-left:2em;margin-bottom:0.5em;}
+p,pre,ul,ol,blockquote,h2,h3,h4,h5,h6,dl,table{margin-left:1em;margin-right:1em;}
+p.subhead{font-weight:bold;margin-top:2em;}.smaller{font-size:smaller}.bigger{font-size:130%}
+td,th{padding:0.2em}
+ul{margin:0.5em 1.5em 0.5em 1.5em;padding:0;}
+ol{margin:0.5em 1.5em 0.5em 1.5em;padding:0;}
+ul{list-style-type:square;}
+ul ul{list-style-type:disc;}
+ul ul ul{list-style-type:circle;}
+ul ul ul ul{list-style-type:disc;}
+ul li{list-style:square;margin:0.1em 0em 0.6em 0;padding:0 0 0 0;line-height:140%;}
+ol li{margin:0.1em 0em 0.6em 1.5em;padding:0 0 0 0px;line-height:140%;list-style-type:decimal;}
+li ul li{font-size:85%;font-style:italic;list-style-type:disc;background:transparent;padding:0 0 0 0;}
+li li ul li{font-size:85%;font-style:normal;list-style-type:circle;background:transparent;padding:0 0 0 0;}
+li li li ul li{list-style-type:disc;background:transparent;padding:0 0 0 0;}
+li ol li{list-style-type:decimal;}
+li li ol li{list-style-type:decimal;}
+ol.outline li:hover{cursor:pointer}
+ol.outline li.nofold:hover{cursor:default}
+ul.outline li:hover{cursor:pointer}
+ul.outline li.nofold:hover{cursor:default}
+ol.outline{list-style:decimal;}
+ol.outline ol{list-style-type:lower-alpha}
+ol.outline li.nofold{padding:0 0 0 20px;background:transparent url(../graphics/nofold-dim.gif)no-repeat 0px 0.5em;}
+ol.outline li.unfolded{padding:0 0 0 20px;background:transparent url(../graphics/fold-dim.gif)no-repeat 0px 0.5em;}
+ol.outline li.folded{padding:0 0 0 20px;background:transparent url(../graphics/unfold-dim.gif)no-repeat 0px 0.5em;}
+ol.outline li.unfolded:hover{padding:0 0 0 20px;background:transparent url(../graphics/fold.gif)no-repeat 0px 0.5em;}
+ol.outline li.folded:hover{padding:0 0 0 20px;background:transparent url(../graphics/unfold.gif)no-repeat 0px 0.5em;}
+ul.outline li.nofold{padding:0 0 0 20px;background:transparent url(../graphics/nofold-dim.gif)no-repeat 0px 0.5em;}
+ul.outline li.unfolded{padding:0 0 0 20px;background:transparent url(../graphics/fold-dim.gif)no-repeat 0px 0.5em;}
+ul.outline li.folded{padding:0 0 0 20px;background:transparent url(../graphics/unfold-dim.gif)no-repeat 0px 0.5em;}
+ul.outline li.unfolded:hover{padding:0 0 0 20px;background:transparent url(../graphics/fold.gif)no-repeat 0px 0.5em;}
+ul.outline li.folded:hover{padding:0 0 0 20px;background:transparent url(../graphics/unfold.gif)no-repeat 0px 0.5em;}
+a.titleslide{font-weight:bold;font-style:italic}
+img.hidden{display:none;visibility:hidden}
+div.initial_prompt{display:none;visibility:hidden}
+div.slide{visibility:visible;position:inherit;}
+div.handout{border-top-style:solid;border-top-width:thin;border-top-color:black;}@media screen{.hidden{display:none;visibility:visible}
+div.slide.hidden{display:block;visibility:visible}
+div.handout.hidden{display:block;visibility:visible}
+div.background{display:none;visibility:hidden}
+body.single_slide div.initial_prompt{display:block;visibility:visible}
+body.single_slide div.background{display:block;visibility:visible}
+body.single_slide div.background.hidden{display:none;visibility:hidden}
+body.single_slide.invisible{visibility:hidden}
+body.single_slide.hidden{display:none;visibility:hidden}
+body.single_slide div.slide{position:absolute}
+body.single_slide div.handout{display:none;visibility:hidden}}@media print{.hidden{display:block;visibility:visible}
+div.slide pre{font-size:60%;padding-left:0.5em;}
+div.toolbar{display:none;visibility:hidden;}
+div.slidy_toc{display:none;visibility:hidden;}
+div.background{display:none;visibility:hidden;}
+div.slide{page-break-before:always}
+div.slide.first-slide{page-break-before:avoid}}
\ No newline at end of file
diff --git a/slidy/slidy.min.js b/slidy/slidy.min.js
index c26b4d742..bd80a4395 100644
--- a/slidy/slidy.min.js
+++ b/slidy/slidy.min.js
@@ -1,2881 +1,487 @@
-/* slidy.js
-
-   Copyright (c) 2005-2010 W3C (MIT, ERCIM, Keio), All Rights Reserved.
-   W3C liability, trademark, document use and software licensing
-   rules apply, see:
-
-   http://www.w3.org/Consortium/Legal/copyright-documents
-   http://www.w3.org/Consortium/Legal/copyright-software
-
-   Defines single name "w3c_slidy" in global namespace
-   Adds event handlers without trampling on any others
-*/
-
-// the slidy object implementation
-var w3c_slidy = {
-  // classify which kind of browser we're running under
-  ns_pos: (typeof window.pageYOffset!='undefined'),
-  khtml: ((navigator.userAgent).indexOf("KHTML") >= 0 ? true : false),
-  opera: ((navigator.userAgent).indexOf("Opera") >= 0 ? true : false),
-  ipad: ((navigator.userAgent).indexOf("iPad") >= 0 ? true : false),
-  iphone: ((navigator.userAgent).indexOf("iPhone") >= 0 ? true : false),
-  ie: (typeof document.all != "undefined" && !this.opera),
-  ie6: (!this.ns_pos && navigator.userAgent.indexOf("MSIE 6") != -1),
-  ie7: (!this.ns_pos && navigator.userAgent.indexOf("MSIE 7") != -1),
-  ie8: (!this.ns_pos && navigator.userAgent.indexOf("MSIE 8") != -1),
-  ie9: (!this.ns_pos && navigator.userAgent.indexOf("MSIE 9") != -1),
-  keyboardless: (this.ipad || this.iphone),
-
-  // are we running as XHTML? (doesn't work on Opera)
-  is_xhtml: /xml/.test(document.contentType),
-
-  slide_number: 0, // integer slide count: 0, 1, 2, ...
-  slide_number_element: null, // element containing slide number
-  slides: [], // set to array of slide div's
-  notes: [], // set to array of handout div's
-  backgrounds: [], // set to array of background div's
-  toolbar: null, // element containing toolbar
-  title: null, // document title
-  last_shown: null, // last incrementally shown item
-  eos: null,  // span element for end of slide indicator
-  toc: null, // table of contents
-  outline: null, // outline element with the focus
-  selected_text_len: 0, // length of drag selection on document
-  view_all: 0,  // 1 to view all slides + handouts
-  want_toolbar: true,  // user preference to show/hide toolbar
-  mouse_click_enabled: true, // enables left click for next slide
-  scroll_hack: 0, // IE work around for position: fixed
-  disable_slide_click: false,  // used by clicked anchors
-
-  lang: "en", // updated to language specified by html file
-
-  help_anchor: null, // used for keyboard focus hack in showToolbar()
-  help_page: "http://www.w3.org/Talks/Tools/Slidy2/help/help.html",
-  help_text: "Navigate with mouse click, space bar, Cursor Left/Right, " +
-             "or Pg Up and Pg Dn. Use S and B to change font size.",
-
-  size_index: 0,
-  size_adjustment: 0,
-  sizes:  new Array("10pt", "12pt", "14pt", "16pt", "18pt", "20pt",
-                    "22pt", "24pt", "26pt", "28pt", "30pt", "32pt"),
-
-  // needed for efficient resizing
-  last_width: 0,
-  last_height: 0,
-
-
-  // Needed for cross browser support for relative width/height on
-  // object elements. The work around is to save width/height attributes
-  // and then to recompute absolute width/height dimensions on resizing
-   objects: [],
-
-  // attach initialiation event handlers
-  set_up: function () {
-    var init = function() { w3c_slidy.init(); };
-    if (typeof window.addEventListener != "undefined")
-      window.addEventListener("load", init, false);
-    else
-      window.attachEvent("onload", init);
-  },
-
-  hide_slides: function () {
-    if (document.body && !w3c_slidy.initialized)
-      document.body.style.visibility = "hidden";
-    else
-      setTimeout(w3c_slidy.hide_slides, 50);
-  },
-
-  // hack to persuade IE to compute correct document height
-  // as needed for simulating fixed positioning of toolbar
-  ie_hack: function () {
-    window.resizeBy(0,-1);
-    window.resizeBy(0, 1);
-  },
-
-  init: function () {
-    //alert("slidy starting test 10");
-    document.body.style.visibility = "visible";
-    this.init_localization();
-    this.add_toolbar();
-    this.wrap_implicit_slides();
-    this.collect_slides();
-    this.collect_notes();
-    this.collect_backgrounds();
-    this.objects = document.body.getElementsByTagName("object");
-    this.patch_anchors();
-    this.slide_number = this.find_slide_number(location.href);
-    window.offscreenbuffering = true;
-    this.size_adjustment = this.find_size_adjust();
-    this.time_left = this.find_duration();
-    this.hide_image_toolbar();  // suppress IE image toolbar popup
-    this.init_outliner();  // activate fold/unfold support
-    this.title = document.title;
-
-    // work around for opera bug
-    this.is_xhtml = (document.body.tagName == "BODY" ? false : true);
-
-    if (this.slides.length > 0)
-    {
-      var slide = this.slides[this.slide_number];
-   
-      if (this.slide_number > 0)
-      {
-        this.set_visibility_all_incremental("visible");
-        this.last_shown = this.previous_incremental_item(null);
-        this.set_eos_status(true);
-      }
-      else
-      {
-        this.last_shown = null;
-        this.set_visibility_all_incremental("hidden");
-        this.set_eos_status(!this.next_incremental_item(this.last_shown));
-      }
-
-      this.set_location();
-      this.add_class(this.slides[0], "first-slide");
-      w3c_slidy.show_slide(slide);
-    }
-
-    this.toc = this.table_of_contents();
-
-    this.add_initial_prompt();
-
-    // bind event handlers without interfering with custom page scripts
-    // Tap events behave too weirdly to support clicks reliably on
-    // iPhone and iPad, so exclude these from click handler
-
-    if (!this.keyboardless)
-      this.add_listener(document.body, "click", this.mouse_button_click);
-
-    this.add_listener(document, "keydown", this.key_down);
-    this.add_listener(document, "keypress", this.key_press);
-    this.add_listener(window, "resize", this.resized);
-    this.add_listener(window, "scroll", this.scrolled);
-    this.add_listener(window, "unload", this.unloaded);
-
-    // this seems to be a debugging hack
-    //if (!document.body.onclick)
-    //  document.body.onclick = function () { };
-
-    this.single_slide_view();
-
-    //this.set_location();
-
-    this.resized();
-
-    if (this.ie7)
-      setTimeout(w3c_slidy.ie_hack, 100);
-
-    this.show_toolbar();
-
-    // for back button detection
-    setInterval(function () { w3c_slidy.check_location(); }, 200);
-    w3c_slidy.initialized = true;
-  },
-
-  // create div element with links to each slide
-  table_of_contents: function () {
-    var toc = this.create_element("div");
-    this.add_class(toc, "slidy_toc hidden");
-    //toc.setAttribute("tabindex", "0");
-
-    var heading = this.create_element("div");
-    this.add_class(heading, "toc-heading");
-    heading.innerHTML = this.localize("Table of Contents");
-
-    toc.appendChild(heading);
-    var previous = null;
-
-    for (var i = 0; i < this.slides.length; ++i)
-    {
-      var title = this.has_class(this.slides[i], "title");
-      var num = document.createTextNode((i + 1) + ". ");
-
-      toc.appendChild(num);
-
-      var a = this.create_element("a");
-      a.setAttribute("href", "#(" + (i+1) + ")");
-
-      if (title)
-        this.add_class(a, "titleslide");
-
-      var name = document.createTextNode(this.slide_name(i));
-      a.appendChild(name);
-      a.onclick = w3c_slidy.toc_click;
-      a.onkeydown = w3c_slidy.toc_key_down;
-      a.previous = previous;
-
-      if (previous)
-        previous.next = a;
-
-      toc.appendChild(a);
-
-      if (i == 0)
-        toc.first = a;
-
-      if (i < this.slides.length - 1)
-      {
-        var br = this.create_element("br");
-        toc.appendChild(br);
-      }
-
-      previous = a;
-    }
-
-    toc.focus = function () {
-      if (this.first)
-        this.first.focus();
-    }
-
-    toc.onmouseup = w3c_slidy.mouse_button_up;
-
-    toc.onclick = function (e) {
-      e||(e=window.event);
-
-      if (w3c_slidy.selected_text_len <= 0)
-         w3c_slidy.hide_table_of_contents(true);
-
-      w3c_slidy.stop_propagation(e);
-    
-      if (e.cancel != undefined)
-        e.cancel = true;
-      
-      if (e.returnValue != undefined)
-        e.returnValue = false;
-      
-      return false;
-    };
-
-    document.body.insertBefore(toc, document.body.firstChild);
-    return toc;
-  },
-
-  is_shown_toc: function () {
-    return !w3c_slidy.has_class(w3c_slidy.toc, "hidden");
-  },
-
-  show_table_of_contents: function () {
-    w3c_slidy.remove_class(w3c_slidy.toc, "hidden");
-    var toc = w3c_slidy.toc;
-    toc.focus();
-
-    if (w3c_slidy.ie7 && w3c_slidy.slide_number == 0)
-      setTimeout(w3c_slidy.ie_hack, 100);
-  },
-
-  hide_table_of_contents: function (focus) {
-    w3c_slidy.add_class(w3c_slidy.toc, "hidden");
-
-    if (focus && !w3c_slidy.opera)
-      w3c_slidy.help_anchor.focus();
-  },
-
-  toggle_table_of_contents: function () {
-    if (w3c_slidy.is_shown_toc())
-      w3c_slidy.hide_table_of_contents(true);
-    else
-      w3c_slidy.show_table_of_contents();
-  },
-
-  // called on clicking toc entry
-  toc_click: function (e) {
-    if (!e)
-      e = window.event;
-
-    var target = w3c_slidy.get_target(e);
-
-    if (target && target.nodeType == 1)
-    {
-      var uri = target.getAttribute("href");
-
-      if (uri)
-      {
-        //alert("going to " + uri);
-        var slide = w3c_slidy.slides[w3c_slidy.slide_number];
-        w3c_slidy.hide_slide(slide);
-        w3c_slidy.slide_number = w3c_slidy.find_slide_number(uri);
-        slide = w3c_slidy.slides[w3c_slidy.slide_number];
-        w3c_slidy.last_shown = null;
-        w3c_slidy.set_location();
-        w3c_slidy.set_visibility_all_incremental("hidden");
-        w3c_slidy.set_eos_status(!w3c_slidy.next_incremental_item(w3c_slidy.last_shown));
-        w3c_slidy.show_slide(slide);
-        //target.focus();
-
-        try
-        {
-          if (!w3c_slidy.opera)
-            w3c_slidy.help_anchor.focus();
-        }
-        catch (e)
-        {
-        }
-      }
-    }
-
-    w3c_slidy.hide_table_of_contents(true);
-    if (w3c_slidy.ie7) w3c_slidy.ie_hack();
-    w3c_slidy.stop_propagation(e);
-    return w3c_slidy.cancel(e);
-  },
-
-  // called onkeydown for toc entry
-  toc_key_down: function (event) {
-    var key;
-
-    if (!event)
-      var event = window.event;
-
-    // kludge around NS/IE differences 
-    if (window.event)
-      key = window.event.keyCode;
-    else if (event.which)
-      key = event.which;
-    else
-      return true; // Yikes! unknown browser
-
-    // ignore event if key value is zero
-    // as for alt on Opera and Konqueror
-    if (!key)
-      return true;
-
-    // check for concurrent control/command/alt key
-    // but are these only present on mouse events?
-
-    if (event.ctrlKey || event.altKey)
-      return true;
-
-    if (key == 13)
-    {
-      var uri = this.getAttribute("href");
-
-      if (uri)
-      {
-        //alert("going to " + uri);
-       var slide = w3c_slidy.slides[w3c_slidy.slide_number];
-        w3c_slidy.hide_slide(slide);
-        w3c_slidy.slide_number = w3c_slidy.find_slide_number(uri);
-        slide = w3c_slidy.slides[w3c_slidy.slide_number];
-        w3c_slidy.last_shown = null;
-        w3c_slidy.set_location();
-        w3c_slidy.set_visibility_all_incremental("hidden");
-        w3c_slidy.set_eos_status(!w3c_slidy.next_incremental_item(w3c_slidy.last_shown));
-        w3c_slidy.show_slide(slide);
-        //target.focus();
-
-        try
-        {
-          if (!w3c_slidy.opera)
-            w3c_slidy.help_anchor.focus();
-        }
-        catch (e)
-        {
-        }
-      }
-
-      w3c_slidy.hide_table_of_contents(true);
-
-      if (self.ie7)
-       w3c_slidy.ie_hack();
-
-      return w3c_slidy.cancel(event);
-    }
-
-    if (key == 40 && this.next)
-    {
-      this.next.focus();
-      return w3c_slidy.cancel(event);
-    }
-
-    if (key == 38 && this.previous)
-    {
-      this.previous.focus();
-      return w3c_slidy.cancel(event);
-    }
-
-    return true;
-  },
-
-
-  // ### OBSOLETE ###
-  before_print: function () {
-    this.show_all_slides();
-    this.hide_toolbar();
-    alert("before print");
-  },
-
-  // ### OBSOLETE ###
-  after_print: function () {
-    if (!this.view_all)
-    {
-      this.single_slide_view();
-      this.show_toolbar();
-    }
-    alert("after print");
-  },
-
-  // ### OBSOLETE ###
-  print_slides: function () {
-    this.before_print();
-    window.print();
-    this.after_print();
-  },
-
-  // ### OBSOLETE ?? ###
-  toggle_view: function () {
-    if (this.view_all)
-    {
-      this.single_slide_view();
-      this.show_toolbar();
-      this.view_all = 0;
-    }
-    else
-    {
-      this.show_all_slides();
-      this.hide_toolbar();
-      this.view_all = 1;
-    }
-  },
-
-  // prepare for printing  ### OBSOLETE ###
-  show_all_slides: function () {
-    this.remove_class(document.body, "single_slide");
-    this.set_visibility_all_incremental("visible");
-  },
-
-  // restore after printing  ### OBSOLETE ###
-  single_slide_view: function () {
-    this.add_class(document.body, "single_slide");
-    this.set_visibility_all_incremental("visible");
-    this.last_shown = this.previous_incremental_item(null);
-  },
-
-  // suppress IE's image toolbar pop up
-  hide_image_toolbar: function () {
-    if (!this.ns_pos)
-    {
-      var images = document.getElementsByTagName("IMG");
-
-      for (var i = 0; i < images.length; ++i)
-        images[i].setAttribute("galleryimg", "no");
-    }
-  },
-
-  unloaded: function (e) {
-    //alert("unloaded");
-  },
-
-  // Safari and Konqueror don't yet support getComputedStyle()
-  // and they always reload page when location.href is updated
-  is_KHTML: function () {
-    var agent = navigator.userAgent;
-    return (agent.indexOf("KHTML") >= 0 ? true : false);
-  },
-
-  // find slide name from first h1 element
-  // default to document title + slide number
-  slide_name: function (index) {
-    var name = null;
-    var slide = this.slides[index];
-
-    var heading = this.find_heading(slide);
-
-    if (heading)
-      name = this.extract_text(heading);
-
-    if (!name)
-      name = this.title + "(" + (index + 1) + ")";
-
-    name.replace(/\&/g, "&amp;");
-    name.replace(/\</g, "&lt;");
-    name.replace(/\>/g, "&gt;");
-
-    return name;
-  },
-
-  // find first h1 element in DOM tree
-  find_heading: function (node) {
-    if (!node || node.nodeType != 1)
-      return null;
-
-    if (node.nodeName == "H1" || node.nodeName == "h1")
-      return node;
-
-    var child = node.firstChild;
-
-    while (child)
-    {
-      node = this.find_heading(child);
-
-      if (node)
-        return node;
-
-      child = child.nextSibling;
-    }
-
-    return null;
-  },
-
-  // recursively extract text from DOM tree
-  extract_text: function (node) {
-    if (!node)
-      return "";
-
-    // text nodes
-    if (node.nodeType == 3)
-      return node.nodeValue;
-
-    // elements
-    if (node.nodeType == 1)
-    {
-      node = node.firstChild;
-      var text = "";
-
-      while (node)
-      {
-        text = text + this.extract_text(node);
-        node = node.nextSibling;
-      }
-
-      return text;
-    }
-
-    return "";
-  },
-
-  // find copyright text from meta element
-  find_copyright: function () {
-    var name, content;
-    var meta = document.getElementsByTagName("meta");
-
-    for (var i = 0; i < meta.length; ++i)
-    {
-      name = meta[i].getAttribute("name");
-      content = meta[i].getAttribute("content");
-
-      if (name == "copyright")
-        return content;
-    }
-
-    return null;
-  },
-
-  find_size_adjust: function () {
-    var name, content, offset;
-    var meta = document.getElementsByTagName("meta");
-
-    for (var i = 0; i < meta.length; ++i)
-    {
-      name = meta[i].getAttribute("name");
-      content = meta[i].getAttribute("content");
-
-      if (name == "font-size-adjustment")
-        return 1 * content;
-    }
-
-    return 1;
-  },
-
-  // <meta name="duration" content="20" />  for 20 minutes
-  find_duration: function () {
-    var name, content, offset;
-    var meta = document.getElementsByTagName("meta");
-
-    for (var i = 0; i < meta.length; ++i)
-    {
-      name = meta[i].getAttribute("name");
-      content = meta[i].getAttribute("content");
-
-      if (name == "duration")
-        return 60000 * content;
-    }
-
-    return null;
-  },
-
-  replace_by_non_breaking_space: function (str) {
-    for (var i = 0; i < str.length; ++i)
-      str[i] = 160;
-  },
-
-  // ### CHECK ME ### is use of "li" okay for text/html?
-  // for XHTML do we also need to specify namespace?
-  init_outliner: function () {
-    var items = document.getElementsByTagName("li");
-
-    for (var i = 0; i < items.length; ++i)
-    {
-      var target = items[i];
-
-      if (!this.has_class(target.parentNode, "outline"))
-        continue;
-
-      target.onclick = this.outline_click;
-/* ### more work needed for IE6
-      if (!this.ns_pos)
-      {
-        target.onmouseover = this.hover_outline;
-        target.onmouseout = this.unhover_outline;
-      }
-*/
-      if (this.foldable(target))
-      {
-        target.foldable = true;
-        target.onfocus = function () {w3c_slidy.outline = this;};
-        target.onblur = function () {w3c_slidy.outline = null;};
-
-        if (!target.getAttribute("tabindex"))
-          target.setAttribute("tabindex", "0");
-
-        if (this.has_class(target, "expand"))
-          this.unfold(target);
-        else
-          this.fold(target);
-      }
-      else
-      {
-        this.add_class(target, "nofold");
-        target.visible = true;
-        target.foldable = false;
-      }
-    }
-  },
-
-  foldable: function (item) {
-    if (!item || item.nodeType != 1)
-      return false;
-
-    var node = item.firstChild;
-
-    while (node)
-    {
-      if (node.nodeType == 1 && this.is_block(node))
-        return true;
-
-      node = node.nextSibling;
-    }
-
-    return false;
-  },
-
-  // ### CHECK ME ### switch to add/remove "hidden" class
-  fold: function (item) {
-    if (item)
-    {
-      this.remove_class(item, "unfolded");
-      this.add_class(item, "folded");
-    }
-
-    var node = item ? item.firstChild : null;
-
-    while (node)
-    {
-      if (node.nodeType == 1 && this.is_block(node)) // element
-      {
-         w3c_slidy.add_class(node, "hidden");
-      }
-
-      node = node.nextSibling;
-    }
-
-    item.visible = false;
-  },
-
-  // ### CHECK ME ### switch to add/remove "hidden" class
-  unfold: function (item) {
-    if (item)
-    {
-      this.add_class(item, "unfolded");
-      this.remove_class(item, "folded");
-    }
-
-    var node = item ? item.firstChild : null;
-
-    while (node)
-    {
-      if (node.nodeType == 1 && this.is_block(node)) // element
-      {
-        w3c_slidy.remove_class(node, "hidden");
-      }
-
-      node = node.nextSibling;
-    }
-
-    item.visible = true;
-  },
-
-  outline_click: function (e) {
-    if (!e)
-      e = window.event;
-
-    var rightclick = false;
-    var target = w3c_slidy.get_target(e);
-
-    while (target && target.visible == undefined)
-      target = target.parentNode;
-
-    if (!target)
-      return true;
-
-    if (e.which)
-      rightclick = (e.which == 3);
-    else if (e.button)
-      rightclick = (e.button == 2);
-
-    if (!rightclick && target.visible != undefined)
-    {
-      if (target.foldable)
-      {
-        if (target.visible)
-          w3c_slidy.fold(target);
-        else
-          w3c_slidy.unfold(target);
-      }
-
-      w3c_slidy.stop_propagation(e);
-      e.cancel = true;
-      e.returnValue = false;
-    }
-
-    return false;
-  },
-
-  add_initial_prompt: function () {
-    var prompt = this.create_element("div");
-    prompt.setAttribute("class", "initial_prompt");
-
-    var p1 = this.create_element("p");
-    prompt.appendChild(p1);
-    p1.setAttribute("class", "help");
-
-    if (this.keyboardless)
-      p1.innerHTML = "Tap footer to move to next slide";
-    else
-      p1.innerHTML = "Space or Right Arrow to move to next " +
-                     "slide, click help below for more details";
-
-    this.add_listener(prompt, "click", function (e) {
-      document.body.removeChild(prompt);
-      w3c_slidy.stop_propagation(e);
-    
-      if (e.cancel != undefined)
-        e.cancel = true;
-      
-      if (e.returnValue != undefined)
-        e.returnValue = false;
-      
-      return false;
-    });
-
-    document.body.appendChild(prompt);
-    this.initial_prompt = prompt;
-    setTimeout(function() {document.body.removeChild(prompt);}, 5000);
-  },
-
-  add_toolbar: function () {
-    var counter, page;
-
-     this.toolbar = this.create_element("div");
-     this.toolbar.setAttribute("class", "toolbar");
-
-     // a reasonably behaved browser
-     if (this.ns_pos || !this.ie6)
-     {
-       var right = this.create_element("div");
-       right.setAttribute("style", "float: right; text-align: right");
-
-       counter = this.create_element("span")
-       counter.innerHTML = this.localize("slide") + " n/m";
-       right.appendChild(counter);
-       this.toolbar.appendChild(right);
-
-       var left = this.create_element("div");
-       left.setAttribute("style", "text-align: left");
-
-       // global end of slide indicator
-       this.eos = this.create_element("span");
-       this.eos.innerHTML = "* ";
-       left.appendChild(this.eos);
-
-       var help = this.create_element("a");
-       help.setAttribute("href", this.help_page);
-       help.setAttribute("title", this.localize(this.help_text));
-       help.innerHTML = this.localize("help?");
-       left.appendChild(help);
-       this.help_anchor = help;  // save for focus hack
-
-       var gap1 = document.createTextNode(" ");
-       left.appendChild(gap1);
-
-       var contents = this.create_element("a");
-       contents.setAttribute("href", "javascript:w3c_slidy.toggle_table_of_contents()");
-       contents.setAttribute("title", this.localize("table of contents"));
-       contents.innerHTML = this.localize("contents?");
-       left.appendChild(contents);
-
-       var gap2 = document.createTextNode(" ");
-       left.appendChild(gap2);
-
-       var copyright = this.find_copyright();
-
-       if (copyright)
-       {
-         var span = this.create_element("span");
-         span.className = "copyright";
-         span.innerHTML = copyright;
-         left.appendChild(span);
-       }
-
-       this.toolbar.setAttribute("tabindex", "0");
-       this.toolbar.appendChild(left);
-     }
-     else // IE6 so need to work around its poor CSS support
-     {
-       this.toolbar.style.position = (this.ie7 ? "fixed" : "absolute");
-       this.toolbar.style.zIndex = "200";
-       this.toolbar.style.width = "99.9%";
-       this.toolbar.style.height = "1.2em";
-       this.toolbar.style.top = "auto";
-       this.toolbar.style.bottom = "0";
-       this.toolbar.style.left = "0";
-       this.toolbar.style.right = "0";
-       this.toolbar.style.textAlign = "left";
-       this.toolbar.style.fontSize = "60%";
-       this.toolbar.style.color = "red";
-       this.toolbar.borderWidth = 0;
-       this.toolbar.className = "toolbar";
-       this.toolbar.style.background = "rgb(240,240,240)";
-
-       // would like to have help text left aligned
-       // and page counter right aligned, floating
-       // div's don't work, so instead use nested
-       // absolutely positioned div's.
-
-       var sp = this.create_element("span");
-       sp.innerHTML = "&nbsp;&nbsp;*&nbsp;";
-       this.toolbar.appendChild(sp);
-       this.eos = sp;  // end of slide indicator
-
-       var help = this.create_element("a");
-       help.setAttribute("href", this.help_page);
-       help.setAttribute("title", this.localize(this.help_text));
-       help.innerHTML = this.localize("help?");
-       this.toolbar.appendChild(help);
-       this.help_anchor = help;  // save for focus hack
-
-       var gap1 = document.createTextNode(" ");
-       this.toolbar.appendChild(gap1);
-
-       var contents = this.create_element("a");
-       contents.setAttribute("href", "javascript:toggleTableOfContents()");
-       contents.setAttribute("title", this.localize("table of contents".localize));
-       contents.innerHTML = this.localize("contents?");
-       this.toolbar.appendChild(contents);
-
-       var gap2 = document.createTextNode(" ");
-       this.toolbar.appendChild(gap2);
-
-       var copyright = this.find_copyright();
-
-       if (copyright)
-       {
-         var span = this.create_element("span");
-         span.innerHTML = copyright;
-         span.style.color = "black";
-         span.style.marginLeft = "0.5em";
-         this.toolbar.appendChild(span);
-       }
-
-       counter = this.create_element("div")
-       counter.style.position = "absolute";
-       counter.style.width = "auto"; //"20%";
-       counter.style.height = "1.2em";
-       counter.style.top = "auto";
-       counter.style.bottom = 0;
-       counter.style.right = "0";
-       counter.style.textAlign = "right";
-       counter.style.color = "red";
-       counter.style.background = "rgb(240,240,240)";
-
-       counter.innerHTML = this.localize("slide") + " n/m";
-       this.toolbar.appendChild(counter);
-     }
-
-     // ensure that click isn't passed through to the page
-     this.toolbar.onclick =
-         function (e) {
-           if (!e)
-             e = window.event;
-
-           var target = e.target;
-
-           if (!target && e.srcElement)
-             target = e.srcElement;
-
-           // work around Safari bug
-           if (target && target.nodeType == 3)
-             target = target.parentNode;
-
-           w3c_slidy.stop_propagation(e);
-
-           if (target && target.nodeName.toLowerCase() != "a")
-             w3c_slidy.mouse_button_click(e);
-         };
-
-     this.slide_number_element = counter;
-     this.set_eos_status(false);
-     document.body.appendChild(this.toolbar);
-  },
-
-  // wysiwyg editors make it hard to use div elements
-  // e.g. amaya loses the div when you copy and paste
-  // this function wraps div elements around implicit
-  // slides which start with an h1 element and continue
-  // up to the next heading or div element
-  wrap_implicit_slides: function () {
-    var i, heading, node, next, div;
-    var headings = document.getElementsByTagName("h1");
-
-    if (!headings)
-      return;
-
-    for (i = 0; i < headings.length; ++i)
-    {
-      heading = headings[i];
-
-      if (heading.parentNode != document.body)
-        continue;
-
-      node = heading.nextSibling;
-
-      div = document.createElement("div");
-      this.add_class(div, "slide");
-      document.body.replaceChild(div, heading);
-      div.appendChild(heading);
-
-      while (node)
-      {
-        if (node.nodeType == 1 &&    // an element
-             (node.nodeName == "H1" ||
-              node.nodeName == "h1" ||
-              node.nodeName == "DIV" ||
-              node.nodeName == "div"))
-          break;
-
-        next = node.nextSibling;
-        node = document.body.removeChild(node);
-        div.appendChild(node);
-        node = next;
-      } 
-    }
-  },
-
-// return new array of all slides
-  collect_slides: function () {
-    var slides = new Array();
-    var divs = document.body.getElementsByTagName("div");
-
-    for (var i = 0; i < divs.length; ++i)
-    {
-      div = divs.item(i);
-
-      if (this.has_class(div, "slide"))
-      {
-        // add slide to collection
-        slides[slides.length] = div;
-
-        // hide each slide as it is found
-        this.add_class(div, "hidden");
-
-        // add dummy <br/> at end for scrolling hack
-        var node1 = document.createElement("br");
-        div.appendChild(node1);
-        var node2 = document.createElement("br");
-        div.appendChild(node2);
-      }
-      else if (this.has_class(div, "background"))
-      {  // work around for Firefox SVG reload bug
-        // which otherwise replaces 1st SVG graphic with 2nd
-        div.style.display = "block";
-      }
-    }
-
-    this.slides = slides;
-  },
-
-  // return new array of all <div class="handout">
-  collect_notes: function () {
-    var notes = new Array();
-    var divs = document.body.getElementsByTagName("div");
-
-    for (var i = 0; i < divs.length; ++i)
-    {
-      div = divs.item(i);
-
-      if (this.has_class(div, "handout"))
-      {
-        // add note to collection
-        notes[notes.length] = div;
-
-        // and hide it
-        this.add_class(div, "hidden");
-      }
-    }
-
-    this.notes = notes;
-  },
-
-  // return new array of all <div class="background">
-  // including named backgrounds e.g. class="background titlepage"
-  collect_backgrounds: function () {
-    var backgrounds = new Array();
-    var divs = document.body.getElementsByTagName("div");
-
-    for (var i = 0; i < divs.length; ++i)
-    {
-      div = divs.item(i);
-
-      if (this.has_class(div, "background"))
-      {
-        // add background to collection
-        backgrounds[backgrounds.length] = div;
-
-        // and hide it
-        this.add_class(div, "hidden");
-      }
-    }
-
-    this.backgrounds = backgrounds;
-  },
-
-  // set click handlers on all anchors
-  patch_anchors: function () {
-    var self = w3c_slidy;
-    var handler = function (event) {
-      // compare this.href with location.href
-      // for link to another slide in this doc
-
-      if (self.page_address(this.href) == self.page_address(location.href))
-      {
-        // yes, so find new slide number
-        var newslidenum = self.find_slide_number(this.href);
-
-        if (newslidenum != self.slide_number)
-        {
-          var slide = self.slides[self.slide_number];
-          self.hide_slide(slide);
-          self.slide_number = newslidenum;
-          slide = self.slides[self.slide_number];
-          self.show_slide(slide);
-          self.set_location();
-        }
-      }
-      else
-        w3c_slidy.stop_propagation(event);
-
-//      else if (this.target == null)
-//        location.href = this.href;
-
-      this.blur();
-      self.disable_slide_click = true;
-    };
-
-    var anchors = document.body.getElementsByTagName("a");
-
-    for (var i = 0; i < anchors.length; ++i)
-    {
-      if (window.addEventListener)
-        anchors[i].addEventListener("click", handler, false);
-      else
-        anchors[i].attachEvent("onclick", handler);
-    }
-  },
-
-  // ### CHECK ME ### see which functions are invoked via setTimeout
-  // either directly or indirectly for use of w3c_slidy vs this
-  show_slide_number: function () {
-    var timer = w3c_slidy.get_timer();
-    w3c_slidy.slide_number_element.innerHTML = timer + w3c_slidy.localize("slide") + " " +
-           (w3c_slidy.slide_number + 1) + "/" + w3c_slidy.slides.length;
-  },
-
-  // every 200mS check if the location has been changed as a
-  // result of the user activating the Back button/menu item
-  // doesn't work for Opera < 9.5
-  check_location: function () {
-    var hash = location.hash;
-
-    if (w3c_slidy.slide_number > 0 && (hash == "" || hash == "#"))
-      w3c_slidy.goto_slide(0);
-    else if (hash.length > 2 && hash != "#("+(w3c_slidy.slide_number+1)+")")
-    {
-      var num = parseInt(location.hash.substr(2));
-
-      if (!isNaN(num))
-        w3c_slidy.goto_slide(num-1);
-    }
-
-    if (w3c_slidy.time_left && w3c_slidy.slide_number > 0)
-    {
-      w3c_slidy.show_slide_number();
-
-      if (w3c_slidy.time_left > 0)
-        w3c_slidy.time_left -= 200;
-    } 
-  },
-
-  get_timer: function () {
-    var timer = "";
-    if (w3c_slidy.time_left)
-    {
-      var mins, secs;
-      secs = Math.floor(w3c_slidy.time_left/1000);
-      mins = Math.floor(secs / 60);
-      secs = secs % 60;
-      timer = (mins ? mins+"m" : "") + secs + "s ";
-    }
-
-    return timer;
-  },
-
-  // this doesn't push location onto history stack for IE
-  // for which a hidden iframe hack is needed: load page into
-  // the iframe with script that set's parent's location.hash
-  // but that won't work for standalone use unless we can
-  // create the page dynamically via a javascript: URL
-  set_location: function () {
-     var uri = w3c_slidy.page_address(location.href);
-     var hash = "#(" + (w3c_slidy.slide_number+1) + ")";
-
-     if (w3c_slidy.slide_number >= 0)
-       uri = uri + hash;
-
-     if (w3c_slidy.ie && (w3c_slidy.ie6 || w3c_slidy.ie7))
-       w3c_slidy.push_hash(hash);
-
-     if (uri != location.href) // && !khtml
-        location.href = uri;
-
-     if (this.khtml)
-        hash = "(" + (w3c_slidy.slide_number+1) + ")";
-
-     if (!this.ie && location.hash != hash && location.hash != "")
-       location.hash = hash;
-
-     document.title = w3c_slidy.title + " (" + (w3c_slidy.slide_number+1) + ")";
-     w3c_slidy.show_slide_number();
-  },
-
-  page_address: function (uri) {
-    var i = uri.indexOf("#");
-
-    if (i < 0)
-      i = uri.indexOf("%23");
-
-    // check if anchor is entire page
-
-    if (i < 0)
-      return uri;  // yes
-
-    return uri.substr(0, i);
-  },
-
-  // only used for IE6 and IE7
-  on_frame_loaded: function (hash) {
-    location.hash = hash;
-    var uri = w3c_slidy.page_address(location.href);
-    location.href = uri + hash;
-  },
-
-  // history hack with thanks to Bertrand Le Roy
-  push_hash: function (hash) {
-    if (hash == "") hash = "#(1)";
-      window.location.hash = hash;
-
-    var doc = document.getElementById("historyFrame").contentWindow.document;
-    doc.open("javascript:'<html></html>'");
-    doc.write("<html><head><script type=\"text/javascript\">window.parent.w3c_slidy.on_frame_loaded('"+
-      (hash) + "');\74/script></head><body>hello mum</body></html>");
-      doc.close();
-  },
-
-  // find current slide based upon location
-  // first find target anchor and then look
-  // for associated div element enclosing it
-  // finally map that to slide number
-  find_slide_number: function (uri) {
-    // first get anchor from page location
-
-    var i = uri.indexOf("#");
-
-    // check if anchor is entire page
-    if (i < 0)
-      return 0;  // yes
-
-    var anchor = unescape(uri.substr(i+1));
-
-    // now use anchor as XML ID to find target
-    var target = document.getElementById(anchor);
-
-    if (!target)
-    {
-      // does anchor look like "(2)" for slide 2 ??
-      // where first slide is (1)
-      var re = /\((\d)+\)/;
-
-      if (anchor.match(re))
-      {
-        var num = parseInt(anchor.substring(1, anchor.length-1));
-
-        if (num > this.slides.length)
-          num = 1;
-
-        if (--num < 0)
-          num = 0;
-
-        return num;
-      }
-
-      // accept [2] for backwards compatibility
-      re = /\[(\d)+\]/;
-
-      if (anchor.match(re))
-      {
-         var num = parseInt(anchor.substring(1, anchor.length-1));
-
-         if (num > this.slides.length)
-            num = 1;
-
-         if (--num < 0)
-            num = 0;
-
-         return num;
-      }
-
-      // oh dear unknown anchor
-      return 0;
-    }
-
-    // search for enclosing slide
-
-    while (true)
-    {
-      // browser coerces html elements to uppercase!
-      if (target.nodeName.toLowerCase() == "div" &&
-            this.has_class(target, "slide"))
-      {
-        // found the slide element
-        break;
-      }
-
-      // otherwise try parent element if any
-
-      target = target.parentNode;
-
-      if (!target)
-      {
-        return 0;   // no luck!
-      }
-    };
-
-    for (i = 0; i < slides.length; ++i)
-    {
-      if (slides[i] == target)
-        return i;  // success
-    }
-
-    // oh dear still no luck
-    return 0;
-  },
-
-  previous_slide: function (incremental) {
-    if (!w3c_slidy.view_all)
-    {
-      var slide;
-
-      if ((incremental || w3c_slidy.slide_number == 0) && w3c_slidy.last_shown != null)
-      {
-        w3c_slidy.last_shown = w3c_slidy.hide_previous_item(w3c_slidy.last_shown);
-        w3c_slidy.set_eos_status(false);
-      }
-      else if (w3c_slidy.slide_number > 0)
-      {
-        slide = w3c_slidy.slides[w3c_slidy.slide_number];
-        w3c_slidy.hide_slide(slide);
-
-        w3c_slidy.slide_number = w3c_slidy.slide_number - 1;
-        slide = w3c_slidy.slides[w3c_slidy.slide_number];
-        w3c_slidy.set_visibility_all_incremental("visible");
-        w3c_slidy.last_shown = w3c_slidy.previous_incremental_item(null);
-        w3c_slidy.set_eos_status(true);
-        w3c_slidy.show_slide(slide);
-      }
-
-      w3c_slidy.set_location();
-
-      if (!w3c_slidy.ns_pos)
-        w3c_slidy.refresh_toolbar(200);
-    }
-  },
-
-  next_slide: function (incremental) {
-    if (!w3c_slidy.view_all)
-    {
-      var slide, last = w3c_slidy.last_shown;
-
-      if (incremental || w3c_slidy.slide_number == w3c_slidy.slides.length - 1)
-         w3c_slidy.last_shown = w3c_slidy.reveal_next_item(w3c_slidy.last_shown);
-
-      if ((!incremental || w3c_slidy.last_shown == null) &&
-             w3c_slidy.slide_number < w3c_slidy.slides.length - 1)
-      {
-         slide = w3c_slidy.slides[w3c_slidy.slide_number];
-         w3c_slidy.hide_slide(slide);
-
-         w3c_slidy.slide_number = w3c_slidy.slide_number + 1;
-         slide = w3c_slidy.slides[w3c_slidy.slide_number];
-         w3c_slidy.last_shown = null;
-         w3c_slidy.set_visibility_all_incremental("hidden");
-         w3c_slidy.show_slide(slide);
-      }
-      else if (!w3c_slidy.last_shown)
-      {
-         if (last && incremental)
-           w3c_slidy.last_shown = last;
-      }
-
-      w3c_slidy.set_location();
-
-      w3c_slidy.set_eos_status(!w3c_slidy.next_incremental_item(w3c_slidy.last_shown));
-
-      if (!w3c_slidy.ns_pos)
-         w3c_slidy.refresh_toolbar(200);
-     }
-  },
-
-  // to first slide with nothing revealed
-  // i.e. state at start of presentation
-  first_slide: function () {
-     if (!w3c_slidy.view_all)
-     {
-       var slide;
-
-       if (w3c_slidy.slide_number != 0)
-       {
-         slide = w3c_slidy.slides[w3c_slidy.slide_number];
-         w3c_slidy.hide_slide(slide);
-
-         w3c_slidy.slide_number = 0;
-         slide = w3c_slidy.slides[w3c_slidy.slide_number];
-         w3c_slidy.last_shown = null;
-         w3c_slidy.set_visibility_all_incremental("hidden");
-         w3c_slidy.show_slide(slide);
-       }
-
-       w3c_slidy.set_eos_status(
-         !w3c_slidy.next_incremental_item(w3c_slidy.last_shown));
-       w3c_slidy.set_location();
-     }
-  },
-
-  // goto last slide with everything revealed
-  // i.e. state at end of presentation
-  last_slide: function () {
-    if (!w3c_slidy.view_all)
-    {
-      var slide;
-
-      w3c_slidy.last_shown = null; //revealNextItem(lastShown);
-
-      if (w3c_slidy.last_shown == null &&
-          w3c_slidy.slide_number < w3c_slidy.slides.length - 1)
-      {
-         slide = w3c_slidy.slides[w3c_slidy.slide_number];
-         w3c_slidy.hide_slide(slide);
-         w3c_slidy.slide_number = w3c_slidy.slides.length - 1;
-         slide = w3c_slidy.slides[w3c_slidy.slide_number];
-         w3c_slidy.set_visibility_all_incremental("visible");
-         w3c_slidy.last_shown = w3c_slidy.previous_incremental_item(null);
-
-         w3c_slidy.show_slide(slide);
-      }
-      else
-      {
-         w3c_slidy.set_visibility_all_incremental("visible");
-         w3c_slidy.last_shown = w3c_slidy.previous_incremental_item(null);
-      }
-
-      w3c_slidy.set_eos_status(true);
-      w3c_slidy.set_location();
-    }
-  },
-
-
-  // ### check this and consider add/remove class
-  set_eos_status: function (state) {
-    if (this.eos)
-      this.eos.style.color = (state ? "rgb(240,240,240)" : "red");
-  },
-
-  // first slide is 0
-  goto_slide: function (num) {
-    //alert("going to slide " + (num+1));
-    var slide = w3c_slidy.slides[w3c_slidy.slide_number];
-    w3c_slidy.hide_slide(slide);
-    w3c_slidy.slide_number = num;
-    slide = w3c_slidy.slides[w3c_slidy.slide_number];
-    w3c_slidy.last_shown = null;
-    w3c_slidy.set_visibility_all_incremental("hidden");
-    w3c_slidy.set_eos_status(!w3c_slidy.next_incremental_item(w3c_slidy.last_shown));
-    document.title = w3c_slidy.title + " (" + (w3c_slidy.slide_number+1) + ")";
-    w3c_slidy.show_slide(slide);
-    w3c_slidy.show_slide_number();
-  },
-
-
-  show_slide: function (slide) {
-    this.sync_background(slide);
-    window.scrollTo(0,0);
-    this.remove_class(slide, "hidden");
-  },
-
-  hide_slide: function (slide) {
-    this.add_class(slide, "hidden");
-  },
-
-  // show just the backgrounds pertinent to this slide
-  // when slide background-color is transparent
-  // this should now work with rgba color values
-  sync_background: function (slide) {
-    var background;
-    var bgColor;
-
-    if (slide.currentStyle)
-      bgColor = slide.currentStyle["backgroundColor"];
-    else if (document.defaultView)
-    {
-      var styles = document.defaultView.getComputedStyle(slide,null);
-
-      if (styles)
-        bgColor = styles.getPropertyValue("background-color");
-      else // broken implementation probably due Safari or Konqueror
-      {
-        //alert("defective implementation of getComputedStyle()");
-        bgColor = "transparent";
-      }
-    }
-    else
-      bgColor == "transparent";
-
-    if (bgColor == "transparent" ||
-        bgColor.indexOf("rgba") >= 0 ||
-        bgColor.indexOf("opacity") >= 0)
-    {
-      var slideClass = this.get_class_list(slide);
-
-      for (var i = 0; i < this.backgrounds.length; i++)
-      {
-        background = this.backgrounds[i];
-
-        var bgClass = this.get_class_list(background);
-
-        if (this.matching_background(slideClass, bgClass))
-          this.remove_class(background, "hidden");
-        else
-          this.add_class(background, "hidden");
-      }
-    }
-    else // forcibly hide all backgrounds
-      this.hide_backgrounds();
-  },
-
-  hide_backgrounds: function () {
-    for (var i = 0; i < this.backgrounds.length; i++)
-    {
-      background = this.backgrounds[i];
-      this.add_class(background, "hidden");
-    }
-  },
-
-  // compare classes for slide and background
-  matching_background: function (slideClass, bgClass) {
-    var i, count, pattern, result;
-
-    // define pattern as regular expression
-    pattern = /\w+/g;
-
-    // check background class names
-    result = bgClass.match(pattern);
-
-    for (i = count = 0; i < result.length; i++)
-    {
-      if (result[i] == "hidden")
-        continue;
-
-      if (result[i] == "background")
-	continue;
-
-      ++count;
-    }
-
-    if (count == 0)  // default match
-      return true;
-
-    // check for matches and place result in array
-    result = slideClass.match(pattern);
-
-    // now check if desired name is present for background
-    for (i = count = 0; i < result.length; i++)
-    {
-      if (result[i] == "hidden")
-        continue;
-
-      if (this.has_token(bgClass, result[i]))
-        return true;
-    }
-
-    return false;
-  },
-
-  resized: function () {
-     var width = 0;
-
-     if ( typeof( window.innerWidth ) == 'number' )
-       width = window.innerWidth;  // Non IE browser
-     else if (document.documentElement && document.documentElement.clientWidth)
-       width = document.documentElement.clientWidth;  // IE6
-     else if (document.body && document.body.clientWidth)
-       width = document.body.clientWidth; // IE4
-
-     var height = 0;
-
-     if ( typeof( window.innerHeight ) == 'number' )
-       height = window.innerHeight;  // Non IE browser
-     else if (document.documentElement && document.documentElement.clientHeight)
-       height = document.documentElement.clientHeight;  // IE6
-     else if (document.body && document.body.clientHeight)
-       height = document.body.clientHeight; // IE4
-
-     if (height && (width/height > 1.05*1024/768))
-     {
-       width = height * 1024.0/768;
-     }
-
-     // IE fires onresize even when only font size is changed!
-     // so we do a check to avoid blocking < and > actions
-     if (width != w3c_slidy.last_width || height != w3c_slidy.last_height)
-     {
-       if (width >= 1100)
-         w3c_slidy.size_index = 5;    // 4
-       else if (width >= 1000)
-         w3c_slidy.size_index = 4;    // 3
-       else if (width >= 800)
-         w3c_slidy.size_index = 3;    // 2
-       else if (width >= 600)
-         w3c_slidy.size_index = 2;    // 1
-       else if (width)
-         w3c_slidy.size_index = 0;
-
-       // add in font size adjustment from meta element e.g.
-       // <meta name="font-size-adjustment" content="-2" />
-       // useful when slides have too much content ;-)
-
-       if (0 <= w3c_slidy.size_index + w3c_slidy.size_adjustment &&
-             w3c_slidy.size_index + w3c_slidy.size_adjustment < w3c_slidy.sizes.length)
-         w3c_slidy.size_index = w3c_slidy.size_index + w3c_slidy.size_adjustment;
-
-       // enables cross browser use of relative width/height
-       // on object elements for use with SVG and Flash media
-       w3c_slidy.adjust_object_dimensions(width, height);
-
-       if (document.body.style.fontSize != w3c_slidy.sizes[w3c_slidy.size_index])
-       {
-         document.body.style.fontSize = w3c_slidy.sizes[w3c_slidy.size_index];
-       }
-
-       w3c_slidy.last_width = width;
-       w3c_slidy.last_height = height;
-
-       // force reflow to work around Mozilla bug
-       if (w3c_slidy.ns_pos)
-       {
-         var slide = w3c_slidy.slides[w3c_slidy.slide_number];
-         w3c_slidy.hide_slide(slide);
-         w3c_slidy.show_slide(slide);
-       }
-
-       // force correct positioning of toolbar
-       w3c_slidy.refresh_toolbar(200);
-     }
-  },
-
-  scrolled: function () {
-    if (w3c_slidy.toolbar && !w3c_slidy.ns_pos && !w3c_slidy.ie7)
-    {
-      w3c_slidy.hack_offset = w3c_slidy.scroll_x_offset();
-      // hide toolbar
-      w3c_slidy.toolbar.style.display = "none";
-
-      // make it reappear later
-      if (w3c_slidy.scrollhack == 0 && !w3c_slidy.view_all)
-      {
-        setTimeout(function () {w3c_slidy.show_toolbar(); }, 1000);
-        w3c_slidy.scrollhack = 1;
-      }
-    }
-  },
-
-  hide_toolbar: function () {
-    w3c_slidy.add_class(w3c_slidy.toolbar, "hidden");
-    window.focus();
-  },
-
-  // used to ensure IE refreshes toolbar in correct position
-  refresh_toolbar: function (interval) {
-    if (!w3c_slidy.ns_pos && !w3c_slidy.ie7)
-    {
-      w3c_slidy.hide_toolbar();
-      setTimeout(function () {w3c_slidy.show_toolbar(); }, interval);
-    }
-  },
-
-  // restores toolbar after short delay
-  show_toolbar: function () {
-    if (w3c_slidy.want_toolbar)
-    {
-      w3c_slidy.toolbar.style.display = "block";
-
-      if (!w3c_slidy.ns_pos)
-      {
-        // adjust position to allow for scrolling
-        var xoffset = w3c_slidy.scroll_x_offset();
-        w3c_slidy.toolbar.style.left = xoffset;
-        w3c_slidy.toolbar.style.right = xoffset;
-
-        // determine vertical scroll offset
-        //var yoffset = scrollYOffset();
-
-        // bottom is doc height - window height - scroll offset
-        //var bottom = documentHeight() - lastHeight - yoffset
-
-        //if (yoffset > 0 || documentHeight() > lastHeight)
-        //   bottom += 16;  // allow for height of scrollbar
-
-        w3c_slidy.toolbar.style.bottom = 0; //bottom;
-      }
-
-      w3c_slidy.remove_class(w3c_slidy.toolbar, "hidden");
-    }
-
-    w3c_slidy.scrollhack = 0;
-
-
-    // set the keyboard focus to the help link on the
-    // toolbar to ensure that document has the focus
-    // IE doesn't always work with window.focus()
-    // and this hack has benefit of Enter for help
-
-    try
-    {
-      if (!w3c_slidy.opera)
-        w3c_slidy.help_anchor.focus();
-    }
-    catch (e)
-    {
-    }
-  },
-
-// invoked via F key
-  toggle_toolbar: function () {
-    if (!w3c_slidy.view_all)
-    {
-      if (w3c_slidy.has_class(w3c_slidy.toolbar, "hidden"))
-      {
-        w3c_slidy.remove_class(w3c_slidy.toolbar, "hidden")
-        w3c_slidy.want_toolbar = 1;
-      }
-      else
-      {
-        w3c_slidy.add_class(w3c_slidy.toolbar, "hidden")
-        w3c_slidy.want_toolbar = 0;
-      }
-    }
-  },
-
-  scroll_x_offset: function () {
-    if (window.pageXOffset)
-      return self.pageXOffset;
-
-    if (document.documentElement && 
-             document.documentElement.scrollLeft)
-      return document.documentElement.scrollLeft;
-
-    if (document.body)
-      return document.body.scrollLeft;
-
-    return 0;
-  },
-
-  scroll_y_offset: function () {
-    if (window.pageYOffset)
-      return self.pageYOffset;
-
-    if (document.documentElement && 
-             document.documentElement.scrollTop)
-      return document.documentElement.scrollTop;
-
-    if (document.body)
-      return document.body.scrollTop;
-
-    return 0;
-  },
-
-  // looking for a way to determine height of slide content
-  // the slide itself is set to the height of the window
-  optimize_font_size: function () {
-    var slide = w3c_slidy.slides[w3c_slidy.slide_number];
-
-    //var dh = documentHeight(); //getDocHeight(document);
-    var dh = slide.scrollHeight;
-    var wh = getWindowHeight();
-    var u = 100 * dh / wh;
-
-    alert("window utilization = " + u + "% (doc "
-      + dh + " win " + wh + ")");
-  },
-
-  // from document object
-  get_doc_height: function (doc) {
-    if (!doc)
-      doc = document;
-
-    if (doc && doc.body && doc.body.offsetHeight)
-      return doc.body.offsetHeight;  // ns/gecko syntax
-
-    if (doc && doc.body && doc.body.scrollHeight)
-      return doc.body.scrollHeight;
-
-    alert("couldn't determine document height");
-  },
-
-  get_window_height: function () {
-    if ( typeof( window.innerHeight ) == 'number' )
-      return window.innerHeight;  // Non IE browser
-
-    if (document.documentElement && document.documentElement.clientHeight)
-      return document.documentElement.clientHeight;  // IE6
-
-    if (document.body && document.body.clientHeight)
-      return document.body.clientHeight; // IE4
-  },
-
-  document_height: function () {
-    var sh, oh;
-
-    sh = document.body.scrollHeight;
-    oh = document.body.offsetHeight;
-
-    if (sh && oh)
-    {
-      return (sh > oh ? sh : oh);
-    }
-
-    // no idea!
-    return 0;
-  },
-
-  smaller: function () {
-    if (w3c_slidy.size_index > 0)
-    {
-      --w3c_slidy.size_index;
-    }
-
-    w3c_slidy.toolbar.style.display = "none";
-    document.body.style.fontSize = w3c_slidy.sizes[w3c_slidy.size_index];
-    var slide = w3c_slidy.slides[w3c_slidy.slide_number];
-    w3c_slidy.hide_slide(slide);
-    w3c_slidy.show_slide(slide);
-    setTimeout(function () {w3c_slidy.show_toolbar(); }, 50);
-  },
-
-  bigger: function () {
-    if (w3c_slidy.size_index < w3c_slidy.sizes.length - 1)
-    {
-      ++w3c_slidy.size_index;
-    }
-
-    w3c_slidy.toolbar.style.display = "none";
-    document.body.style.fontSize = w3c_slidy.sizes[w3c_slidy.size_index];
-    var slide = w3c_slidy.slides[w3c_slidy.slide_number];
-    w3c_slidy.hide_slide(slide);
-    w3c_slidy.show_slide(slide);
-    setTimeout(function () {w3c_slidy.show_toolbar(); }, 50);
-  },
-
-  // enables cross browser use of relative width/height
-  // on object elements for use with SVG and Flash media
-  // with thanks to Ivan Herman for the suggestion
-  adjust_object_dimensions: function (width, height) {
-    for( var i = 0; i < w3c_slidy.objects.length; i++ )
-    {
-      var obj = this.objects[i];
-      var mimeType = obj.getAttribute("type");
-
-      if (mimeType == "image/svg+xml" || mimeType == "application/x-shockwave-flash")
-      {
-        if ( !obj.initialWidth ) 
-          obj.initialWidth = obj.getAttribute("width");
-
-        if ( !obj.initialHeight ) 
-          obj.initialHeight = obj.getAttribute("height");
-
-        if ( obj.initialWidth && obj.initialWidth.charAt(obj.initialWidth.length-1) == "%" )
-        {
-          var w = parseInt(obj.initialWidth.slice(0, obj.initialWidth.length-1));
-          var newW = width * (w/100.0);
-          obj.setAttribute("width",newW);
-        }
-
-        if ( obj.initialHeight &&
-             obj.initialHeight.charAt(obj.initialHeight.length-1) == "%" )
-        {
-          var h = parseInt(obj.initialHeight.slice(0, obj.initialHeight.length-1));
-          var newH = height * (h/100.0);
-          obj.setAttribute("height", newH);
-        }
-      }
-    }
-  },
-
-  // needed for Opera to inhibit default behavior
-  // since Opera delivers keyPress even if keyDown
-  // was cancelled
-  key_press: function (event) {
-    if (!event)
-      event = window.event;
-
-    if (!w3c_slidy.key_wanted)
-      return w3c_slidy.cancel(event);
-
-    return true;
-  },
-
-  //  See e.g. http://www.quirksmode.org/js/events/keys.html for keycodes
-  key_down: function (event) {
-    var key, target, tag;
-
-    w3c_slidy.key_wanted = true;
-
-    if (!event)
-      event = window.event;
-
-    // kludge around NS/IE differences 
-    if (window.event)
-    {
-      key = window.event.keyCode;
-      target = window.event.srcElement;
-    }
-    else if (event.which)
-    {
-      key = event.which;
-      target = event.target;
-    }
-    else
-      return true; // Yikes! unknown browser
-
-    // ignore event if key value is zero
-    // as for alt on Opera and Konqueror
-    if (!key)
-       return true;
-
-    // avoid interfering with keystroke
-    // behavior for non-slidy chrome elements
-    if (!w3c_slidy.slidy_chrome(target) &&
-        w3c_slidy.special_element(target))
-      return true;
-
-    // check for concurrent control/command/alt key
-    // but are these only present on mouse events?
-
-    if (event.ctrlKey || event.altKey || event.metaKey)
-       return true;
-
-    // dismiss table of contents if visible
-    if (w3c_slidy.is_shown_toc() && key != 9 && key != 16 && key != 38 && key != 40)
-    {
-      w3c_slidy.hide_table_of_contents(true);
-
-      if (key == 27 || key == 84 || key == 67)
-        return w3c_slidy.cancel(event);
-    }
-
-    if (key == 34) // Page Down
-    {
-      if (w3c_slidy.view_all)
-        return true;
-
-      w3c_slidy.next_slide(false);
-      return w3c_slidy.cancel(event);
-    }
-    else if (key == 33) // Page Up
-    {
-      if (w3c_slidy.view_all)
-        return true;
-
-      w3c_slidy.previous_slide(false);
-      return w3c_slidy.cancel(event);
-    }
-    else if (key == 32) // space bar
-    {
-      w3c_slidy.next_slide(true);
-      return w3c_slidy.cancel(event);
-    }
-    else if (key == 37) // Left arrow
-    {
-      w3c_slidy.previous_slide(!event.shiftKey);
-      return w3c_slidy.cancel(event);
-    }
-    else if (key == 36) // Home
-    {
-      w3c_slidy.first_slide();
-      return w3c_slidy.cancel(event);
-    }
-    else if (key == 35) // End
-    {
-      w3c_slidy.last_slide();
-      return w3c_slidy.cancel(event);
-    }
-    else if (key == 39) // Right arrow
-    {
-      w3c_slidy.next_slide(!event.shiftKey);
-      return w3c_slidy.cancel(event);
-    }
-    else if (key == 13) // Enter
-    {
-      if (w3c_slidy.outline)
-      {
-        if (w3c_slidy.outline.visible)
-          w3c_slidy.fold(w3c_slidy.outline);
-        else
-          w3c_slidy.unfold(w3c_slidy.outline);
-          
-       return w3c_slidy.cancel(event);
-      }
-    }
-    else if (key == 188)  // < for smaller fonts
-    {
-      w3c_slidy.smaller();
-      return w3c_slidy.cancel(event);
-    }
-    else if (key == 190)  // > for larger fonts
-    {
-      w3c_slidy.bigger();
-      return w3c_slidy.cancel(event);
-    }
-    else if (key == 189 || key == 109)  // - for smaller fonts
-    {
-      w3c_slidy.smaller();
-      return w3c_slidy.cancel(event);
-    }
-    else if (key == 187 || key == 191 || key == 107)  // = +  for larger fonts
-    {
-      w3c_slidy.bigger();
-      return w3c_slidy.cancel(event);
-    }
-    else if (key == 83)  // S for smaller fonts
-    {
-      w3c_slidy.smaller();
-      return w3c_slidy.cancel(event);
-    }
-    else if (key == 66)  // B for larger fonts
-    {
-      w3c_slidy.bigger();
-      return w3c_slidy.cancel(event);
-    }
-    else if (key == 90)  // Z for last slide
-    {
-      w3c_slidy.last_slide();
-      return w3c_slidy.cancel(event);
-    }
-    else if (key == 70)  // F for toggle toolbar
-    {
-      w3c_slidy.toggle_toolbar();
-      return w3c_slidy.cancel(event);
-    }
-    else if (key == 65)  // A for toggle view single/all slides
-    {
-      w3c_slidy.toggle_view();
-      return w3c_slidy.cancel(event);
-    }
-    else if (key == 75)  // toggle action of left click for next page
-    {
-      w3c_slidy.mouse_click_enabled = !w3c_slidy.mouse_click_enabled;
-      var alert_msg = (w3c_slidy.mouse_click_enabled ?
-                "enabled" : "disabled") +  " mouse click advance";
-
-      alert(w3c_slidy.localize(alert_msg));
-      return w3c_slidy.cancel(event);
-    }
-    else if (key == 84 || key == 67)  // T or C for table of contents
-    {
-      if (w3c_slidy.toc)
-        w3c_slidy.toggle_table_of_contents();
-
-      return w3c_slidy.cancel(event);
-    }
-    else if (key == 72) // H for help
-    {
-      window.location = w3c_slidy.help_page;
-      return w3c_slidy.cancel(event);
-    }
-    //else alert("key code is "+ key);
-
-    return true;
-  },
-
-  // safe for both text/html and application/xhtml+xml
-  create_element: function (name) {
-    if (this.xhtml && (typeof document.createElementNS != 'undefined'))
-      return document.createElementNS("http://www.w3.org/1999/xhtml", name)
-
-    return document.createElement(name);
-  },
-
-  get_element_style: function (elem, IEStyleProp, CSSStyleProp) {
-    if (elem.currentStyle)
-    {
-      return elem.currentStyle[IEStyleProp];
-    }
-    else if (window.getComputedStyle)
-    {
-      var compStyle = window.getComputedStyle(elem, "");
-      return compStyle.getPropertyValue(CSSStyleProp);
-    }
-    return "";
-  },
-
-  // the string str is a whitespace separated list of tokens
-  // test if str contains a particular token, e.g. "slide"
-  has_token: function (str, token) {
-    if (str)
-    {
-      // define pattern as regular expression
-      var pattern = /\w+/g;
-
-      // check for matches
-      // place result in array
-      var result = str.match(pattern);
-
-      // now check if desired token is present
-      for (var i = 0; i < result.length; i++)
-      {
-        if (result[i] == token)
-          return true;
-      }
-    }
-
-    return false;
-  },
-
-  get_class_list: function (element) {
-    if (typeof element.className != 'undefined')
-      return element.className;
-
-    return element.getAttribute("class");
-  },
-
-  has_class: function (element, name) {
-    if (element.nodeType != 1)
-      return false;
-
-    var regexp = new RegExp("(^| )" + name + "\W*");
-
-    if (typeof element.className != 'undefined')
-      return regexp.test(element.className);
-
-    return regexp.test(element.getAttribute("class"));
-  },
-
-  remove_class: function (element, name) {
-    var regexp = new RegExp("(^| )" + name + "\W*");
-    var clsval = "";
-
-    if (typeof element.className != 'undefined')
-    {
-      clsval = element.className;
-
-      if (clsval)
-      {
-        clsval = clsval.replace(regexp, "");
-        element.className = clsval;
-      }
-    }
-    else
-    {
-      clsval = element.getAttribute("class");
-
-      if (clsval)
-      {
-        clsval = clsval.replace(regexp, "");
-        element.setAttribute("class", clsval);
-      }
-    }
-  },
-
-  add_class: function (element, name) {
-    if (!this.has_class(element, name))
-    {
-      if (typeof element.className != 'undefined')
-        element.className += " " + name;
-      else
-      {
-        var clsval = element.getAttribute("class");
-        clsval = clsval ? clsval + " " + name : name;
-        element.setAttribute("class", clsval);
-      }
-    }
-  },
-
-  // HTML elements that can be used with class="incremental"
-  // note that you can also put the class on containers like
-  // up, ol, dl, and div to make their contents appear
-  // incrementally. Upper case is used since this is what
-  // browsers report for HTML node names (text/html).
-  incremental_elements: null,
-  okay_for_incremental: function (name) {
-    if (!this.incremental_elements)
-    {
-      var inclist = new Array();
-      inclist["p"] = true;
-      inclist["pre"] = true;
-      inclist["li"] = true;
-      inclist["blockquote"] = true;
-      inclist["dt"] = true;
-      inclist["dd"] = true;
-      inclist["h2"] = true;
-      inclist["h3"] = true;
-      inclist["h4"] = true;
-      inclist["h5"] = true;
-      inclist["h6"] = true;
-      inclist["span"] = true;
-      inclist["address"] = true;
-      inclist["table"] = true;
-      inclist["tr"] = true;
-      inclist["th"] = true;
-      inclist["td"] = true;
-      inclist["img"] = true;
-      inclist["object"] = true;
-      this.incremental_elements = inclist;
-    }
-    return this.incremental_elements[name.toLowerCase()];
-  },
-
-  next_incremental_item: function (node) {
-    var br = this.is_xhtml ? "br" : "BR";
-    var slide = w3c_slidy.slides[w3c_slidy.slide_number];
-
-    for (;;)
-    {
-      node = w3c_slidy.next_node(slide, node);
-
-      if (node == null || node.parentNode == null)
-        break;
-
-      if (node.nodeType == 1)  // ELEMENT
-      {
-        if (node.nodeName == br)
-          continue;
-
-        if (w3c_slidy.has_class(node, "incremental")
-             && w3c_slidy.okay_for_incremental(node.nodeName))
-          return node;
-
-        if (w3c_slidy.has_class(node.parentNode, "incremental")
-             && !w3c_slidy.has_class(node, "non-incremental"))
-          return node;
-      }
-    }
-
-    return node;
-  },
-
-  previous_incremental_item: function (node) {
-    var br = this.is_xhtml ? "br" : "BR";
-    var slide = w3c_slidy.slides[w3c_slidy.slide_number];
-
-    for (;;)
-    {
-      node = w3c_slidy.previous_node(slide, node);
-
-      if (node == null || node.parentNode == null)
-        break;
-
-      if (node.nodeType == 1)
-      {
-        if (node.nodeName == br)
-          continue;
-
-        if (w3c_slidy.has_class(node, "incremental")
-             && w3c_slidy.okay_for_incremental(node.nodeName))
-          return node;
-
-        if (w3c_slidy.has_class(node.parentNode, "incremental")
-             && !w3c_slidy.has_class(node, "non-incremental"))
-          return node;
-      }
-    }
-
-    return node;
-  },
-
-  // set visibility for all elements on current slide with
-  // a parent element with attribute class="incremental"
-  set_visibility_all_incremental: function (value) {
-    var node = this.next_incremental_item(null);
-
-    if (value == "hidden")
-    {
-      while (node)
-      {
-        w3c_slidy.add_class(node, "invisible");
-        node = w3c_slidy.next_incremental_item(node);
-      }
-    }
-    else // value == "visible"
-    {
-      while (node)
-      {
-        w3c_slidy.remove_class(node, "invisible");
-        node = w3c_slidy.next_incremental_item(node);
-      }
-    }
-  },
-
-  // reveal the next hidden item on the slide
-  // node is null or the node that was last revealed
-  reveal_next_item: function (node) {
-    node = w3c_slidy.next_incremental_item(node);
-
-    if (node && node.nodeType == 1)  // an element
-      w3c_slidy.remove_class(node, "invisible");
-
-    return node;
-  },
-
-  // exact inverse of revealNextItem(node)
-  hide_previous_item: function (node) {
-    if (node && node.nodeType == 1)  // an element
-      w3c_slidy.add_class(node, "invisible");
-
-    return this.previous_incremental_item(node);
-  },
-
-  // left to right traversal of root's content
-  next_node: function (root, node) {
-    if (node == null)
-      return root.firstChild;
-
-    if (node.firstChild)
-      return node.firstChild;
-
-    if (node.nextSibling)
-      return node.nextSibling;
-
-    for (;;)
-    {
-      node = node.parentNode;
-
-      if (!node || node == root)
-        break;
-
-      if (node && node.nextSibling)
-        return node.nextSibling;
-    }
-
-    return null;
-  },
-
-  // right to left traversal of root's content
-  previous_node: function (root, node) {
-    if (node == null)
-    {
-      node = root.lastChild;
-
-      if (node)
-      {
-        while (node.lastChild)
-          node = node.lastChild;
-      }
-
-      return node;
-    }
-
-    if (node.previousSibling)
-    {
-      node = node.previousSibling;
-
-      while (node.lastChild)
-        node = node.lastChild;
-
-      return node;
-    }
-
-    if (node.parentNode != root)
-      return node.parentNode;
-
-    return null;
-  },
-
-  previous_sibling_element: function (el) {
-    el = el.previousSibling;
-
-    while (el && el.nodeType != 1)
-      el = el.previousSibling;
-
-    return el;
-  },
-
-  next_sibling_element: function (el) {
-    el = el.nextSibling;
-
-    while (el && el.nodeType != 1)
-      el = el.nextSibling;
-
-    return el;
-  },
-
-  first_child_element: function (el) {
-    var node;
-
-    for (node = el.firstChild; node; node = node.nextSibling)
-    {
-      if (node.nodeType == 1)
-        break;
-    }
-
-    return node;
-  },
-
-  first_tag: function (element, tag) {
-    var node;
-
-    if (!this.is_xhtml)
-      tag = tag.toUpperCase();
-
-    for (node = element.firstChild; node; node = node.nextSibling)
-    {
-      if (node.nodeType == 1 && node.nodeName == tag)
-        break;
-    }
-
-    return node;
-  },
-
-  hide_selection: function () {
-    if (window.getSelection) // Firefox, Chromium, Safari, Opera
-    {
-      var selection = window.getSelection();
-
-      if (selection.rangeCount > 0)
-      {
-        var range = selection.getRangeAt(0);
-        range.collapse (false);
-      }
-    }
-    else // Internet Explorer
-    {
-      var textRange = document.selection.createRange ();
-      textRange.collapse (false);
-    }
-  },
-
-  get_selected_text: function () {
-    try
-    {
-      if (window.getSelection)
-        return window.getSelection().toString();
-
-      if (document.getSelection)
-        return document.getSelection().toString();
-
-      if (document.selection)
-        return document.selection.createRange().text;
-    }
-    catch (e)
-    {
-    }
-
-    return "";
-  },
-
-  // make note of length of selected text
-  // as this evaluates to zero in click event
-  mouse_button_up: function (e) {
-    w3c_slidy.selected_text_len = w3c_slidy.get_selected_text().length;
-  },
-
-  // right mouse button click is reserved for context menus
-  // it is more reliable to detect rightclick than leftclick
-  mouse_button_click: function (e) {
-    var rightclick = false;
-    var leftclick = false;
-    var middleclick = false;
-    var target;
-
-    if (!e)
-      var e = window.event;
-
-    if (e.target)
-      target = e.target;
-    else if (e.srcElement)
-      target = e.srcElement;
-
-    // work around Safari bug
-    if (target.nodeType == 3)
-      target = target.parentNode;
-
-    if (e.which) // all browsers except IE
-    {
-      leftclick = (e.which == 1);
-      middleclick = (e.which == 2);
-      rightclick = (e.which == 3);
-    }
-    else if (e.button)
-    {
-      // Konqueror gives 1 for left, 4 for middle
-      // IE6 gives 0 for left and not 1 as I expected
-
-      if (e.button == 4)
-        middleclick = true;
-
-      // all browsers agree on 2 for right button
-      rightclick = (e.button == 2);
-    }
-    else
-      leftclick = true;
-
-    if (w3c_slidy.selected_text_len > 0)
-    {
-      w3c_slidy.stop_propagation(e);
-      e.cancel = true;
-      e.returnValue = false;
-      return false;
-    }
-
-    // dismiss table of contents
-    w3c_slidy.hide_table_of_contents(false);
-
-    // check if target is something that probably want's clicks
-    // e.g. a, embed, object, input, textarea, select, option
-    var tag = target.nodeName.toLowerCase();
-
-    if (w3c_slidy.mouse_click_enabled && leftclick &&
-        !w3c_slidy.special_element(target) &&
-        !target.onclick)
-    {
-      w3c_slidy.next_slide(true);
-      w3c_slidy.stop_propagation(e);
-      e.cancel = true;
-      e.returnValue = false;
-      return false;
-    }
-
-    return true;
-  },
-
-  special_element: function (e) {
-    var tag = e.nodeName.toLowerCase();
-
-    return e.onkeydown ||
-      e.onclick ||
-      tag == "a" ||
-      tag == "embed" ||
-      tag == "object" ||
-      tag == "video" ||
-      tag == "audio" ||
-      tag == "input" ||
-      tag == "textarea" ||
-      tag == "select" ||
-      tag == "option";
-  },
-
-  slidy_chrome: function (el) {
-    while (el)
-    {
-      if (el == w3c_slidy.toc ||
-          el == w3c_slidy.toolbar ||
-          w3c_slidy.has_class(el, "outline"))
-        return true;
-
-      el = el.parentNode;
-    }
-
-    return false;
-  },
-
-  get_key: function (e)
-  {
-    var key;
-
-    // kludge around NS/IE differences 
-    if (typeof window.event != "undefined")
-      key = window.event.keyCode;
-    else if (e.which)
-      key = e.which;
-
-    return key;
-  },
-
-  get_target: function (e) {
-    var target;
-
-    if (!e)
-      e = window.event;
-
-    if (e.target)
-      target = e.target;
-    else if (e.srcElement)
-      target = e.srcElement;
-
-    if (target.nodeType != 1)
-      target = target.parentNode;
-
-    return target;
-  },
-
-  // does display property provide correct defaults?
-  is_block: function (elem) {
-    var tag = elem.nodeName.toLowerCase();
-
-    return tag == "ol" || tag == "ul" || tag == "p" ||
-           tag == "li" || tag == "table" || tag == "pre" ||
-           tag == "h1" || tag == "h2" || tag == "h3" ||
-           tag == "h4" || tag == "h5" || tag == "h6" ||
-           tag == "blockquote" || tag == "address"; 
-  },
-
-  add_listener: function (element, event, handler) {
-    if (window.addEventListener)
-      element.addEventListener(event, handler, false);
-    else
-      element.attachEvent("on"+event, handler);
-  },
-
-  // used to prevent event propagation from field controls
-  stop_propagation: function (event) {
-    event = event ? event : window.event;
-    event.cancelBubble = true;  // for IE
-
-    if (event.stopPropagation)
-      event.stopPropagation();
-
-    return true;
-  },
-
-  cancel: function (event) {
-    if (event)
-    {
-       event.cancel = true;
-       event.returnValue = false;
-
-      if (event.preventDefault)
-        event.preventDefault();
-    }
-
-    w3c_slidy.key_wanted = false;
-    return false;
-  },
-
-// for each language define an associative array
-// and also the help text which is longer
-
-  strings_es: {
-    "slide":"pág.",
-    "help?":"Ayuda",
-    "contents?":"Índice",
-    "table of contents":"tabla de contenidos",
-    "Table of Contents":"Tabla de Contenidos",
-    "restart presentation":"Reiniciar presentación",
-    "restart?":"Inicio"
-  },
-  help_es:
-    "Utilice el ratón, barra espaciadora, teclas Izda/Dcha, " +
-    "o Re pág y Av pág. Use S y B para cambiar el tamaño de fuente.",
-
-  strings_ca: {
-    "slide":"pàg..",
-    "help?":"Ajuda",
-    "contents?":"Índex",
-    "table of contents":"taula de continguts",
-    "Table of Contents":"Taula de Continguts",
-    "restart presentation":"Reiniciar presentació",
-    "restart?":"Inici"
-  },
-  help_ca:
-    "Utilitzi el ratolí, barra espaiadora, tecles Esq./Dta. " +
-    "o Re pàg y Av pàg. Usi S i B per canviar grandària de font.",
-
-  strings_cs: {
-    "slide":"snímek",
-    "help?":"nápověda",
-    "contents?":"obsah",
-    "table of contents":"obsah prezentace",
-    "Table of Contents":"Obsah prezentace",
-    "restart presentation":"znovu spustit prezentaci",
-    "restart?":"restart"
-  },
-  help_cs:
-    "Prezentaci můžete procházet pomocí kliknutí myši, mezerníku, " +
-    "šipek vlevo a vpravo nebo kláves PageUp a PageDown. Písmo se " +
-    "dá zvětšit a zmenšit pomocí kláves B a S.",
-
-  strings_nl: {
-    "slide":"pagina",
-    "help?":"Help?",
-    "contents?":"Inhoud?",
-    "table of contents":"inhoudsopgave",
-    "Table of Contents":"Inhoudsopgave",
-    "restart presentation":"herstart presentatie",
-    "restart?":"Herstart?"
-  },
-  help_nl:
-     "Navigeer d.m.v. het muis, spatiebar, Links/Rechts toetsen, " +
-     "of PgUp en PgDn. Gebruik S en B om de karaktergrootte te veranderen.",
-
-  strings_de: {
-    "slide":"Seite",
-    "help?":"Hilfe",
-    "contents?":"Übersicht",
-    "table of contents":"Inhaltsverzeichnis",
-    "Table of Contents":"Inhaltsverzeichnis",
-    "restart presentation":"Präsentation neu starten",
-    "restart?":"Neustart"
-  },
-  help_de:
-    "Benutzen Sie die Maus, Leerschlag, die Cursortasten links/rechts oder " +
-    "Page up/Page Down zum Wechseln der Seiten und S und B für die Schriftgrösse.",
-
-  strings_pl: {
-    "slide":"slajd",
-    "help?":"pomoc?",
-    "contents?":"spis treści?",
-    "table of contents":"spis treści",
-    "Table of Contents":"Spis Treści",
-    "restart presentation":"Restartuj prezentację",
-    "restart?":"restart?"
-  },
-  help_pl:
-    "Zmieniaj slajdy klikając myszą, naciskając spację, strzałki lewo/prawo" +
-    "lub PgUp / PgDn. Użyj klawiszy S i B, aby zmienić rozmiar czczionki.",
-
-  strings_fr: {
-    "slide":"page",
-    "help?":"Aide",
-    "contents?":"Index",
-    "table of contents":"table des matières",
-    "Table of Contents":"Table des matières",
-    "restart presentation":"Recommencer l'exposé",
-    "restart?":"Début"
-  },
-  help_fr:
-    "Naviguez avec la souris, la barre d'espace, les flèches " +
-    "gauche/droite ou les touches Pg Up, Pg Dn. Utilisez " +
-    "les touches S et B pour modifier la taille de la police.",
-
-  strings_hu: {
-    "slide":"oldal",
-    "help?":"segítség",
-    "contents?":"tartalom",
-    "table of contents":"tartalomjegyzék",
-    "Table of Contents":"Tartalomjegyzék",
-    "restart presentation":"bemutató újraindítása",
-    "restart?":"újraindítás"
-  },
-  help_hu:
-    "Az oldalak közti lépkedéshez kattintson az egérrel, vagy " +
-    "használja a szóköz, a bal, vagy a jobb nyíl, illetve a Page Down, " +
-    "Page Up billentyűket. Az S és a B billentyűkkel változtathatja " +
-    "a szöveg méretét.",
-
-  strings_it: {
-    "slide":"pag.",
-    "help?":"Aiuto",
-    "contents?":"Indice",
-    "table of contents":"indice",
-    "Table of Contents":"Indice",
-    "restart presentation":"Ricominciare la presentazione",
-    "restart?":"Inizio"
-  },
-  help_it:
-    "Navigare con mouse, barra spazio, frecce sinistra/destra o " +
-    "PgUp e PgDn. Usare S e B per cambiare la dimensione dei caratteri.",
-
-  strings_el: {
-    "slide":"σελίδα",
-    "help?":"βοήθεια;",
-    "contents?":"περιεχόμενα;",
-    "table of contents":"πίνακας περιεχομένων",
-    "Table of Contents":"Πίνακας Περιεχομένων",
-    "restart presentation":"επανεκκίνηση παρουσίασης",
-    "restart?":"επανεκκίνηση;"
-  },
-  help_el:
-    "Πλοηγηθείτε με το κλίκ του ποντικιού, το space, τα βέλη αριστερά/δεξιά, " +
-    "ή Page Up και Page Down. Χρησιμοποιήστε τα πλήκτρα S και B για να αλλάξετε " +
-    "το μέγεθος της γραμματοσειράς.",
-
-  strings_ja: {
-    "slide":"スライド",
-    "help?":"ヘルプ",
-    "contents?":"目次",
-    "table of contents":"目次を表示",
-    "Table of Contents":"目次",
-    "restart presentation":"最初から再生",
-    "restart?":"最初から"
-  },
-  help_ja:
-     "マウス左クリック ・ スペース ・ 左右キー " +
-     "または Page Up ・ Page Downで操作， S ・ Bでフォントサイズ変更",
-
-  strings_zh: {
-    "slide":"幻灯片",
-    "help?":"帮助?",
-    "contents?":"内容?",
-    "table of contents":"目录",
-    "Table of Contents":"目录",
-    "restart presentation":"重新启动展示",
-    "restart?":"重新启动?"
-  },
-  help_zh:
-    "用鼠标点击, 空格条, 左右箭头, Pg Up 和 Pg Dn 导航. " +
-    "用 S, B 改变字体大小.",
-
-  strings_ru: {
-    "slide":"слайд",
-    "help?":"помощь?",
-    "contents?":"содержание?",
-    "table of contents":"оглавление",
-    "Table of Contents":"Оглавление",
-    "restart presentation":"перезапустить презентацию",
-    "restart?":"перезапуск?"
-  },
-  help_ru:
-    "Перемещайтесь кликая мышкой, используя клавишу пробел, стрелки" +
-    "влево/вправо или Pg Up и Pg Dn. Клавиши S и B меняют размер шрифта.",
-
-  strings_sv: {
-    "slide":"sida",
-    "help?":"hjälp",
-    "contents?":"innehåll",
-    "table of contents":"innehållsförteckning",
-    "Table of Contents":"Innehållsförteckning",
-    "restart presentation":"visa presentationen från början",
-    "restart?":"börja om"
-  },
-  help_sv:
-    "Bläddra med ett klick med vänstra musknappen, mellanslagstangenten, " +
-    "vänster- och högerpiltangenterna eller tangenterna Pg Up, Pg Dn. " +
-    "Använd tangenterna S och B för att ändra textens storlek.",
-
-  strings: { },
-
-  localize: function (src) {
-    if (src == "")
-      return src;
-
-     // try full language code, e.g. en-US
-     var s, lookup = w3c_slidy.strings[w3c_slidy.lang];
-
-     if (lookup)
-     {
-       s = lookup[src];
-
-       if (s)
-        return s;
-     }
-
-     // strip country code suffix, e.g.
-     // try en if undefined for en-US
-     var lg = w3c_slidy.lang.split("-");
-
-     if (lg.length > 1)
-     {
-       lookup = w3c_slidy.strings[lg[0]];
-
-       if (lookup)
-       {
-         s = lookup[src];
-
-         if (s)
-          return s;
-       }
-     }
-
-     // otherwise string as is
-     return src;
-  },
-
-  init_localization: function () {
-    var i18n = w3c_slidy;
-    var help_text = w3c_slidy.help_text;
-
-    // each such language array is declared in the localize array
-    // this is used as in  w3c_slidy.localize("foo");
-    this.strings = {
-      "es":this.strings_es,
-      "ca":this.strings_ca,
-      "cs":this.strings_cs,
-      "nl":this.strings_nl,
-      "de":this.strings_de,
-      "pl":this.strings_pl,
-      "fr":this.strings_fr,
-      "hu":this.strings_hu,
-      "it":this.strings_it,
-      "el":this.strings_el,
-      "jp":this.strings_ja,
-      "zh":this.strings_zh,
-      "ru":this.strings_ru,
-      "sv":this.strings_sv
-    },
-
-    i18n.strings_es[help_text] = i18n.help_es;
-    i18n.strings_ca[help_text] = i18n.help_ca;
-    i18n.strings_cs[help_text] = i18n.help_cs;
-    i18n.strings_nl[help_text] = i18n.help_nl;
-    i18n.strings_de[help_text] = i18n.help_de;
-    i18n.strings_pl[help_text] = i18n.help_pl;
-    i18n.strings_fr[help_text] = i18n.help_fr;
-    i18n.strings_hu[help_text] = i18n.help_hu;
-    i18n.strings_it[help_text] = i18n.help_it;
-    i18n.strings_el[help_text] = i18n.help_el;
-    i18n.strings_ja[help_text] = i18n.help_ja;
-    i18n.strings_zh[help_text] = i18n.help_zh;
-    i18n.strings_ru[help_text] = i18n.help_ru;
-    i18n.strings_sv[help_text] = i18n.help_sv;
-
-    w3c_slidy.lang = document.body.parentNode.getAttribute("lang");
-
-    if (!w3c_slidy.lang)
-      w3c_slidy.lang = document.body.parentNode.getAttribute("xml:lang");
-
-    if (!w3c_slidy.lang)
-      w3c_slidy.lang = "en";
-  }
-};
-
-// hack for back button behavior
-if (w3c_slidy.ie6 || w3c_slidy.ie7)
-{
-  document.write("<iframe id='historyFrame' " +
-  "src='javascript:\"<html"+"></"+"html>\"' " +
-  "height='1' width='1' " +
-  "style='position:absolute;left:-800px'></iframe>");
-}
-
-// attach event listeners for initialization
-w3c_slidy.set_up();
-
-// hide the slides as soon as body element is available
-// to reduce annoying screen mess before the onload event
-setTimeout(w3c_slidy.hide_slides, 50);
 
+var w3c_slidy={ns_pos:(typeof window.pageYOffset!='undefined'),khtml:((navigator.userAgent).indexOf("KHTML")>=0?true:false),opera:((navigator.userAgent).indexOf("Opera")>=0?true:false),ipad:((navigator.userAgent).indexOf("iPad")>=0?true:false),iphone:((navigator.userAgent).indexOf("iPhone")>=0?true:false),ie:(typeof document.all!="undefined"&&!this.opera),ie6:(!this.ns_pos&&navigator.userAgent.indexOf("MSIE 6")!=-1),ie7:(!this.ns_pos&&navigator.userAgent.indexOf("MSIE 7")!=-1),ie8:(!this.ns_pos&&navigator.userAgent.indexOf("MSIE 8")!=-1),ie9:(!this.ns_pos&&navigator.userAgent.indexOf("MSIE 9")!=-1),keyboardless:(this.ipad||this.iphone),is_xhtml:/xml/.test(document.contentType),slide_number:0,slide_number_element:null,slides:[],notes:[],backgrounds:[],toolbar:null,title:null,last_shown:null,eos:null,toc:null,outline:null,selected_text_len:0,view_all:0,want_toolbar:true,mouse_click_enabled:true,scroll_hack:0,disable_slide_click:false,lang:"en",help_anchor:null,help_page:"http://www.w3.org/Talks/Tools/Slidy2/help/help.html",help_text:"Navigate with mouse click, space bar, Cursor Left/Right, "+"or Pg Up and Pg Dn. Use S and B to change font size.",size_index:0,size_adjustment:0,sizes:new Array("10pt","12pt","14pt","16pt","18pt","20pt","22pt","24pt","26pt","28pt","30pt","32pt"),last_width:0,last_height:0,objects:[],set_up:function(){var init=function(){w3c_slidy.init();};if(typeof window.addEventListener!="undefined")
+window.addEventListener("load",init,false);else
+window.attachEvent("onload",init);},hide_slides:function(){if(document.body&&!w3c_slidy.initialized)
+document.body.style.visibility="hidden";else
+setTimeout(w3c_slidy.hide_slides,50);},ie_hack:function(){window.resizeBy(0,-1);window.resizeBy(0,1);},init:function(){document.body.style.visibility="visible";this.init_localization();this.add_toolbar();this.wrap_implicit_slides();this.collect_slides();this.collect_notes();this.collect_backgrounds();this.objects=document.body.getElementsByTagName("object");this.patch_anchors();this.slide_number=this.find_slide_number(location.href);window.offscreenbuffering=true;this.size_adjustment=this.find_size_adjust();this.time_left=this.find_duration();this.hide_image_toolbar();this.init_outliner();this.title=document.title;this.is_xhtml=(document.body.tagName=="BODY"?false:true);if(this.slides.length>0)
+{var slide=this.slides[this.slide_number];if(this.slide_number>0)
+{this.set_visibility_all_incremental("visible");this.last_shown=this.previous_incremental_item(null);this.set_eos_status(true);}
+else
+{this.last_shown=null;this.set_visibility_all_incremental("hidden");this.set_eos_status(!this.next_incremental_item(this.last_shown));}
+this.set_location();this.add_class(this.slides[0],"first-slide");w3c_slidy.show_slide(slide);}
+this.toc=this.table_of_contents();this.add_initial_prompt();if(!this.keyboardless)
+this.add_listener(document.body,"click",this.mouse_button_click);this.add_listener(document,"keydown",this.key_down);this.add_listener(document,"keypress",this.key_press);this.add_listener(window,"resize",this.resized);this.add_listener(window,"scroll",this.scrolled);this.add_listener(window,"unload",this.unloaded);this.single_slide_view();this.resized();if(this.ie7)
+setTimeout(w3c_slidy.ie_hack,100);this.show_toolbar();setInterval(function(){w3c_slidy.check_location();},200);w3c_slidy.initialized=true;},table_of_contents:function(){var toc=this.create_element("div");this.add_class(toc,"slidy_toc hidden");var heading=this.create_element("div");this.add_class(heading,"toc-heading");heading.innerHTML=this.localize("Table of Contents");toc.appendChild(heading);var previous=null;for(var i=0;i<this.slides.length;++i)
+{var title=this.has_class(this.slides[i],"title");var num=document.createTextNode((i+1)+". ");toc.appendChild(num);var a=this.create_element("a");a.setAttribute("href","#("+(i+1)+")");if(title)
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+toc.first=a;if(i<this.slides.length-1)
+{var br=this.create_element("br");toc.appendChild(br);}
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+setTimeout(w3c_slidy.ie_hack,100);},hide_table_of_contents:function(focus){w3c_slidy.add_class(w3c_slidy.toc,"hidden");if(focus&&!w3c_slidy.opera)
+w3c_slidy.help_anchor.focus();},toggle_table_of_contents:function(){if(w3c_slidy.is_shown_toc())
+w3c_slidy.hide_table_of_contents(true);else
+w3c_slidy.show_table_of_contents();},toc_click:function(e){if(!e)
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+{var uri=target.getAttribute("href");if(uri)
+{var slide=w3c_slidy.slides[w3c_slidy.slide_number];w3c_slidy.hide_slide(slide);w3c_slidy.slide_number=w3c_slidy.find_slide_number(uri);slide=w3c_slidy.slides[w3c_slidy.slide_number];w3c_slidy.last_shown=null;w3c_slidy.set_location();w3c_slidy.set_visibility_all_incremental("hidden");w3c_slidy.set_eos_status(!w3c_slidy.next_incremental_item(w3c_slidy.last_shown));w3c_slidy.show_slide(slide);try
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+w3c_slidy.help_anchor.focus();}
+catch(e)
+{}}}
+w3c_slidy.hide_table_of_contents(true);if(w3c_slidy.ie7)w3c_slidy.ie_hack();w3c_slidy.stop_propagation(e);return w3c_slidy.cancel(e);},toc_key_down:function(event){var key;if(!event)
+var event=window.event;if(window.event)
+key=window.event.keyCode;else if(event.which)
+key=event.which;else
+return true;if(!key)
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+{var uri=this.getAttribute("href");if(uri)
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+{if(!w3c_slidy.opera)
+w3c_slidy.help_anchor.focus();}
+catch(e)
+{}}
+w3c_slidy.hide_table_of_contents(true);if(self.ie7)
+w3c_slidy.ie_hack();return w3c_slidy.cancel(event);}
+if(key==40&&this.next)
+{this.next.focus();return w3c_slidy.cancel(event);}
+if(key==38&&this.previous)
+{this.previous.focus();return w3c_slidy.cancel(event);}
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+{this.single_slide_view();this.show_toolbar();}
+alert("after print");},print_slides:function(){this.before_print();window.print();this.after_print();},toggle_view:function(){if(this.view_all)
+{this.single_slide_view();this.show_toolbar();this.view_all=0;}
+else
+{this.show_all_slides();this.hide_toolbar();this.view_all=1;}},show_all_slides:function(){this.remove_class(document.body,"single_slide");this.set_visibility_all_incremental("visible");},single_slide_view:function(){this.add_class(document.body,"single_slide");this.set_visibility_all_incremental("visible");this.last_shown=this.previous_incremental_item(null);},hide_image_toolbar:function(){if(!this.ns_pos)
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+return null;if(node.nodeName=="H1"||node.nodeName=="h1")
+return node;var child=node.firstChild;while(child)
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+return node;child=child.nextSibling;}
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+return node.nodeValue;if(node.nodeType==1)
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+{text=text+this.extract_text(node);node=node.nextSibling;}
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+{name=meta[i].getAttribute("name");content=meta[i].getAttribute("content");if(name=="copyright")
+return content;}
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+{name=meta[i].getAttribute("name");content=meta[i].getAttribute("content");if(name=="font-size-adjustment")
+return 1*content;}
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+{name=meta[i].getAttribute("name");content=meta[i].getAttribute("content");if(name=="duration")
+return 60000*content;}
+return null;},replace_by_non_breaking_space:function(str){for(var i=0;i<str.length;++i)
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+{target.foldable=true;target.onfocus=function(){w3c_slidy.outline=this;};target.onblur=function(){w3c_slidy.outline=null;};if(!target.getAttribute("tabindex"))
+target.setAttribute("tabindex","0");if(this.has_class(target,"expand"))
+this.unfold(target);else
+this.fold(target);}
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+{if(node.nodeType==1&&this.is_block(node))
+return true;node=node.nextSibling;}
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+{this.remove_class(item,"unfolded");this.add_class(item,"folded");}
+var node=item?item.firstChild:null;while(node)
+{if(node.nodeType==1&&this.is_block(node))
+{w3c_slidy.add_class(node,"hidden");}
+node=node.nextSibling;}
+item.visible=false;},unfold:function(item){if(item)
+{this.add_class(item,"unfolded");this.remove_class(item,"folded");}
+var node=item?item.firstChild:null;while(node)
+{if(node.nodeType==1&&this.is_block(node))
+{w3c_slidy.remove_class(node,"hidden");}
+node=node.nextSibling;}
+item.visible=true;},outline_click:function(e){if(!e)
+e=window.event;var rightclick=false;var target=w3c_slidy.get_target(e);while(target&&target.visible==undefined)
+target=target.parentNode;if(!target)
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+rightclick=(e.which==3);else if(e.button)
+rightclick=(e.button==2);if(!rightclick&&target.visible!=undefined)
+{if(target.foldable)
+{if(target.visible)
+w3c_slidy.fold(target);else
+w3c_slidy.unfold(target);}
+w3c_slidy.stop_propagation(e);e.cancel=true;e.returnValue=false;}
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+p1.innerHTML="Tap footer to move to next slide";else
+p1.innerHTML="Space or Right Arrow to move to next "+"slide, click help below for more details";this.add_listener(prompt,"click",function(e){document.body.removeChild(prompt);w3c_slidy.stop_propagation(e);if(e.cancel!=undefined)
+e.cancel=true;if(e.returnValue!=undefined)
+e.returnValue=false;return false;});document.body.appendChild(prompt);this.initial_prompt=prompt;setTimeout(function(){document.body.removeChild(prompt);},5000);},add_toolbar:function(){var counter,page;this.toolbar=this.create_element("div");this.toolbar.setAttribute("class","toolbar");if(this.ns_pos||!this.ie6)
+{var right=this.create_element("div");right.setAttribute("style","float: right; text-align: right");counter=this.create_element("span")
+counter.innerHTML=this.localize("slide")+" n/m";right.appendChild(counter);this.toolbar.appendChild(right);var left=this.create_element("div");left.setAttribute("style","text-align: left");this.eos=this.create_element("span");this.eos.innerHTML="* ";left.appendChild(this.eos);var help=this.create_element("a");help.setAttribute("href",this.help_page);help.setAttribute("title",this.localize(this.help_text));help.innerHTML=this.localize("help?");left.appendChild(help);this.help_anchor=help;var gap1=document.createTextNode(" ");left.appendChild(gap1);var contents=this.create_element("a");contents.setAttribute("href","javascript:w3c_slidy.toggle_table_of_contents()");contents.setAttribute("title",this.localize("table of contents"));contents.innerHTML=this.localize("contents?");left.appendChild(contents);var gap2=document.createTextNode(" ");left.appendChild(gap2);var copyright=this.find_copyright();if(copyright)
+{var span=this.create_element("span");span.className="copyright";span.innerHTML=copyright;left.appendChild(span);}
+this.toolbar.setAttribute("tabindex","0");this.toolbar.appendChild(left);}
+else
+{this.toolbar.style.position=(this.ie7?"fixed":"absolute");this.toolbar.style.zIndex="200";this.toolbar.style.width="99.9%";this.toolbar.style.height="1.2em";this.toolbar.style.top="auto";this.toolbar.style.bottom="0";this.toolbar.style.left="0";this.toolbar.style.right="0";this.toolbar.style.textAlign="left";this.toolbar.style.fontSize="60%";this.toolbar.style.color="red";this.toolbar.borderWidth=0;this.toolbar.className="toolbar";this.toolbar.style.background="rgb(240,240,240)";var sp=this.create_element("span");sp.innerHTML="&nbsp;&nbsp;*&nbsp;";this.toolbar.appendChild(sp);this.eos=sp;var help=this.create_element("a");help.setAttribute("href",this.help_page);help.setAttribute("title",this.localize(this.help_text));help.innerHTML=this.localize("help?");this.toolbar.appendChild(help);this.help_anchor=help;var gap1=document.createTextNode(" ");this.toolbar.appendChild(gap1);var contents=this.create_element("a");contents.setAttribute("href","javascript:toggleTableOfContents()");contents.setAttribute("title",this.localize("table of contents".localize));contents.innerHTML=this.localize("contents?");this.toolbar.appendChild(contents);var gap2=document.createTextNode(" ");this.toolbar.appendChild(gap2);var copyright=this.find_copyright();if(copyright)
+{var span=this.create_element("span");span.innerHTML=copyright;span.style.color="black";span.style.marginLeft="0.5em";this.toolbar.appendChild(span);}
+counter=this.create_element("div")
+counter.style.position="absolute";counter.style.width="auto";counter.style.height="1.2em";counter.style.top="auto";counter.style.bottom=0;counter.style.right="0";counter.style.textAlign="right";counter.style.color="red";counter.style.background="rgb(240,240,240)";counter.innerHTML=this.localize("slide")+" n/m";this.toolbar.appendChild(counter);}
+this.toolbar.onclick=function(e){if(!e)
+e=window.event;var target=e.target;if(!target&&e.srcElement)
+target=e.srcElement;if(target&&target.nodeType==3)
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+return;for(i=0;i<headings.length;++i)
+{heading=headings[i];if(heading.parentNode!=document.body)
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+{if(node.nodeType==1&&(node.nodeName=="H1"||node.nodeName=="h1"||node.nodeName=="DIV"||node.nodeName=="div"))
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+{slides[slides.length]=div;this.add_class(div,"hidden");var node1=document.createElement("br");div.appendChild(node1);var node2=document.createElement("br");div.appendChild(node2);}
+else if(this.has_class(div,"background"))
+{div.style.display="block";}}
+this.slides=slides;},collect_notes:function(){var notes=new Array();var divs=document.body.getElementsByTagName("div");for(var i=0;i<divs.length;++i)
+{div=divs.item(i);if(this.has_class(div,"handout"))
+{notes[notes.length]=div;this.add_class(div,"hidden");}}
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+{div=divs.item(i);if(this.has_class(div,"background"))
+{backgrounds[backgrounds.length]=div;this.add_class(div,"hidden");}}
+this.backgrounds=backgrounds;},patch_anchors:function(){var self=w3c_slidy;var handler=function(event){if(self.page_address(this.href)==self.page_address(location.href))
+{var newslidenum=self.find_slide_number(this.href);if(newslidenum!=self.slide_number)
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+else
+w3c_slidy.stop_propagation(event);this.blur();self.disable_slide_click=true;};var anchors=document.body.getElementsByTagName("a");for(var i=0;i<anchors.length;++i)
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+w3c_slidy.goto_slide(0);else if(hash.length>2&&hash!="#("+(w3c_slidy.slide_number+1)+")")
+{var num=parseInt(location.hash.substr(2));if(!isNaN(num))
+w3c_slidy.goto_slide(num-1);}
+if(w3c_slidy.time_left&&w3c_slidy.slide_number>0)
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+w3c_slidy.time_left-=200;}},get_timer:function(){var timer="";if(w3c_slidy.time_left)
+{var mins,secs;secs=Math.floor(w3c_slidy.time_left/1000);mins=Math.floor(secs/60);secs=secs%60;timer=(mins?mins+"m":"")+secs+"s ";}
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+i=uri.indexOf("%23");if(i<0)
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+(hash)+"');\74/script></head><body>hello mum</body></html>");doc.close();},find_slide_number:function(uri){var i=uri.indexOf("#");if(i<0)
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+{var re=/\((\d)+\)/;if(anchor.match(re))
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+{if(slides[i]==target)
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+{var slide;if((incremental||w3c_slidy.slide_number==0)&&w3c_slidy.last_shown!=null)
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+else if(w3c_slidy.slide_number>0)
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+else if(!w3c_slidy.last_shown)
+{if(last&&incremental)
+w3c_slidy.last_shown=last;}
+w3c_slidy.set_location();w3c_slidy.set_eos_status(!w3c_slidy.next_incremental_item(w3c_slidy.last_shown));if(!w3c_slidy.ns_pos)
+w3c_slidy.refresh_toolbar(200);}},first_slide:function(){if(!w3c_slidy.view_all)
+{var slide;if(w3c_slidy.slide_number!=0)
+{slide=w3c_slidy.slides[w3c_slidy.slide_number];w3c_slidy.hide_slide(slide);w3c_slidy.slide_number=0;slide=w3c_slidy.slides[w3c_slidy.slide_number];w3c_slidy.last_shown=null;w3c_slidy.set_visibility_all_incremental("hidden");w3c_slidy.show_slide(slide);}
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+{var slide;w3c_slidy.last_shown=null;if(w3c_slidy.last_shown==null&&w3c_slidy.slide_number<w3c_slidy.slides.length-1)
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+else
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