update slidy to upstream code as of 2014-05-28

2 files changed, 76 insertions, 48 deletions

diff --git a/slidy/slidy.css b/slidy/slidy.css
index 61effb6..c713c88 100644
--- a/slidy/slidy.css
+++ b/slidy/slidy.css
@@ -15,10 +15,6 @@ body
   height: 100%;
   color: black;
   background-color: white;
-  background-image: url(openlogo-nd-100.png);
-  background-attachment: fixed;
-  background-repeat: no-repeat;
-  background-position: 95% 5%;
   font-family: "Gill Sans MT", "Gill Sans", GillSans, sans-serif;
   font-size: 14pt;
 }
@@ -47,7 +43,7 @@ div.initial_prompt {
   width: 100%;
   background-color: rgb(200,200,200);
   opacity: 0.35;
-  background-color: rgb(200,200,200, 0.35);
+  background-color: rgba(200,200,200, 0.35);
   cursor: pointer;
 }
 
@@ -138,23 +134,21 @@ div.slide h1 {
   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;
+@media screen and (max-device-width: 1024px)
+{
+  div.slide { font-size: 100%; }
+}
+
+@media screen and (max-device-width: 800px)
+{
+  div.slide { font-size: 200%; }
+  div.slidy_toc {
+    top: 1em;
+    left: 1em;
+    right: auto;
+    width: 80%;
+    font-size: 180%;
+  }
 }
 
 div.toc-heading {
@@ -164,6 +158,10 @@ div.toc-heading {
   text-align: center;
 }
 
+img {
+  image-rendering: optimize-quality;
+}
+
 pre {
  font-size: 80%;
  font-weight: bold;
@@ -201,10 +199,10 @@ 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}
+.toolbar a:link {color: blue}
+.toolbar a:visited {color: blue}
+.toolbar a:active {color: red}
+.toolbar a:hover {color: red}
 
 ul { list-style-type: square; }
 ul ul { list-style-type: disc; }
diff --git a/slidy/slidy.js b/slidy/slidy.js
index 9c6d7b1..83723b4 100644
--- a/slidy/slidy.js
+++ b/slidy/slidy.js
@@ -1,5 +1,5 @@
 
-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),android:((navigator.userAgent).indexOf("Android")>=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),last_tap:0,prev_tap:0,start_x:0,start_y:0,delta_x:0,delta_y:0,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")
+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),android:((navigator.userAgent).indexOf("Android")>=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),last_tap:0,prev_tap:0,start_x:0,start_y:0,delta_x:0,delta_y:0,is_xhtml:/xml/.test(document.contentType),slide_number:0,slide_number_element:null,slides:[],notes:[],backgrounds:[],observers:[],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
@@ -13,7 +13,9 @@ 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.add_listener(document,"touchstart",this.touchstart);this.add_listener(document,"touchmove",this.touchmove);this.add_listener(document,"touchend",this.touchend);this.single_slide_view();this.resized();if(this.ie7)
+{this.add_listener(document.body,"click",this.mouse_button_click);this.add_listener(document.body,"mousedown",this.mouse_button_down);}
+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.add_listener(document,"gesturechange",function()
+{return false;});this.attach_touch_handers(this.slides);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)
 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)
@@ -27,15 +29,15 @@ toc.onmouseup=w3c_slidy.mouse_button_up;toc.onclick=function(e){e||(e=window.eve
 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())
+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.has_class(w3c_slidy.toc,"hidden"))
+w3c_slidy.set_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)
 e=window.event;var target=w3c_slidy.get_target(e);if(target&&target.nodeType==1)
 {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
 {if(!w3c_slidy.opera)
-w3c_slidy.help_anchor.focus();}
+w3c_slidy.set_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)
@@ -48,7 +50,7 @@ return true;if(key==13)
 {var uri=this.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
 {if(!w3c_slidy.opera)
-w3c_slidy.help_anchor.focus();}
+w3c_slidy.set_focus();}
 catch(e)
 {}}
 w3c_slidy.hide_table_of_contents(true);if(self.ie7)
@@ -60,15 +62,17 @@ if(key==38&&this.previous)
 return true;},touchstart:function(e)
 {this.prev_tap=this.last_tap;this.last_tap=(new Date).getTime();var tap_delay=this.last_tap-this.prev_tap;if(tap_delay<=200)
 {}
-var touch=e.touches[0];this.start_x=touch.pageX;this.start_y=touch.pageY;this.delta_x=this.delta_y=0;},touchmove:function(e)
-{var touch=e.touches[0];this.delta_x=touch.pageX-this.start_x;this.delta_y=touch.pageY-this.start_y;},touchend:function(e)
-{var delay=(new Date).getTime()-this.last_tap;var dx=this.delta_x;var dy=this.delta_y;var abs_dx=Math.abs(dx);var abs_dy=Math.abs(dy);if(delay<500&&(abs_dx>100||abs_dy>100))
+var touch=e.touches[0];this.pageX=touch.pageX;this.pageY=touch.pageY;this.screenX=touch.screenX;this.screenY=touch.screenY;this.clientX=touch.clientX;this.clientY=touch.clientY;this.delta_x=this.delta_y=0;},touchmove:function(e)
+{if(e.touches.length>1)
+return;e.preventDefault();var touch=e.touches[0];this.delta_x=touch.pageX-this.pageX;this.delta_y=touch.pageY-this.pageY;},touchend:function(e)
+{if(e.touches.length>1)
+return;var delay=(new Date).getTime()-this.last_tap;var dx=this.delta_x;var dy=this.delta_y;var abs_dx=Math.abs(dx);var abs_dy=Math.abs(dy);if(delay<500&&(abs_dx>100||abs_dy>100))
 {if(abs_dx>0.5*abs_dy)
-{if(dx>0)
+{e.preventDefault();if(dx<0)
 w3c_slidy.next_slide(true);else
 w3c_slidy.previous_slide(true);}
 else if(abs_dy>2*abs_dx)
-{w3c_slidy.toggle_table_of_contents();}}},before_print:function(){this.show_all_slides();this.hide_toolbar();alert("before print");},after_print:function(){if(!this.view_all)
+{e.preventDefault();w3c_slidy.toggle_table_of_contents();}}},before_print:function(){this.show_all_slides();this.hide_toolbar();alert("before print");},after_print:function(){if(!this.view_all)
 {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;}
@@ -134,8 +138,8 @@ 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="swipe right to move to next slide";else
-p1.innerHTML="Space, Right Arrow or swipe right 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)
+p1.innerHTML="swipe left to move to next slide";else
+p1.innerHTML="Space, Right Arrow or swipe left 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")
@@ -155,8 +159,15 @@ w3c_slidy.mouse_button_click(e);};this.slide_number_element=counter;this.set_eos
 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&&(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;}}},collect_slides:function(){var slides=new Array();var divs=document.body.getElementsByTagName("div");for(var i=0;i<divs.length;++i)
+{if(node.nodeType==1)
+{if(node.nodeName=="H1"||node.nodeName=="h1")
+break;if(node.nodeName=="DIV"||node.nodeName=="div")
+{if(this.has_class(node,"slide"))
+break;if(this.has_class(node,"handout"))
+break;}}
+next=node.nextSibling;node=document.body.removeChild(node);div.appendChild(node);node=next;}}},attach_touch_handers:function(slides)
+{var i,slide;for(i=0;i<slides.length;++i)
+{slide=slides[i];this.add_listener(slide,"touchstart",this.touchstart);this.add_listener(slide,"touchmove",this.touchmove);this.add_listener(slide,"touchend",this.touchend);}},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"))
 {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"))
@@ -184,11 +195,22 @@ if(w3c_slidy.time_left&&w3c_slidy.slide_number>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;},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))
+uri=uri+hash;if(typeof(history.pushState)!="undefined")
+{document.title=w3c_slidy.title+" ("+(w3c_slidy.slide_number+1)+")";history.pushState(0,document.title,hash);w3c_slidy.show_slide_number();w3c_slidy.notify_observers();return;}
+if(w3c_slidy.ie&&(w3c_slidy.ie6||w3c_slidy.ie7))
 w3c_slidy.push_hash(hash);if(uri!=location.href)
 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)
+location.hash=hash;document.title=w3c_slidy.title+" ("+(w3c_slidy.slide_number+1)+")";w3c_slidy.show_slide_number();w3c_slidy.notify_observers();},notify_observers:function()
+{var slide=this.slides[this.slide_number];for(var i=0;i<this.observers.length;++i)
+this.observers[i](this.slide_number+1,this.find_heading(slide).innerText,location.href);},add_observer:function(observer)
+{for(var i=0;i<this.observers.length;++i)
+{if(observer==this.observers[i])
+return;}
+this.observers.push(observer);},remove_observer:function(o)
+{for(var i=0;i<this.observers.length;++i)
+{if(observer==this.observers[i])
+{this.observers.splice(i,1);break;}}},page_address:function(uri){var i=uri.indexOf("#");if(i<0)
 i=uri.indexOf("%23");if(i<0)
 return uri;return uri.substr(0,i);},on_frame_loaded:function(hash){location.hash=hash;var uri=w3c_slidy.page_address(location.href);location.href=uri+hash;},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)+"');</script></head><body>hello mum</body></html>");doc.close();},find_slide_number:function(uri){var i=uri.indexOf("#");if(i<0)
@@ -232,7 +254,10 @@ w3c_slidy.set_eos_status(!w3c_slidy.next_incremental_item(w3c_slidy.last_shown))
 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();}},set_eos_status:function(state){if(this.eos)
-this.eos.style.color=(state?"rgb(240,240,240)":"red");},goto_slide:function(num){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");},sync_background:function(slide){var background;var bgColor;if(slide.currentStyle)
+this.eos.style.color=(state?"rgb(240,240,240)":"red");},goto_slide:function(num){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);this.remove_class(slide,"hidden");setTimeout("window.scrollTo(0,0);",1);},hide_slide:function(slide){this.add_class(slide,"hidden");},set_focus:function(element)
+{if(element)
+element.focus();else
+{w3c_slidy.help_anchor.focus();setTimeout(function(){w3c_slidy.help_anchor.blur();},1);}},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
@@ -282,7 +307,7 @@ w3c_slidy.refresh_toolbar(200);}},scrolled:function(){if(w3c_slidy.toolbar&&!w3c
 w3c_slidy.remove_class(w3c_slidy.toolbar,"hidden");}
 w3c_slidy.scrollhack=0;try
 {if(!w3c_slidy.opera)
-w3c_slidy.help_anchor.focus();}
+w3c_slidy.set_focus();}
 catch(e)
 {}},toggle_toolbar:function(){if(!w3c_slidy.view_all)
 {if(w3c_slidy.has_class(w3c_slidy.toolbar,"hidden"))
@@ -456,7 +481,11 @@ return document.getSelection().toString();if(document.selection)
 return document.selection.createRange().text;}
 catch(e)
 {}
-return"";},mouse_button_up:function(e){w3c_slidy.selected_text_len=w3c_slidy.get_selected_text().length;},mouse_button_click:function(e){var rightclick=false;var leftclick=false;var middleclick=false;var target;if(!e)
+return"";},mouse_button_up:function(e){w3c_slidy.selected_text_len=w3c_slidy.get_selected_text().length;},mouse_button_down:function(e){w3c_slidy.selected_text_len=w3c_slidy.get_selected_text().length;w3c_slidy.mouse_x=e.clientX;w3c_slidy.mouse_y=e.clientY;},mouse_button_click:function(e){if(!e)
+var e=window.event;if(Math.abs(e.clientX-w3c_slidy.mouse_x)+
+Math.abs(e.clientY-w3c_slidy.mouse_y)>10)
+return true;if(w3c_slidy.selected_text_len>0)
+return true;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;if(target.nodeType==3)
@@ -470,7 +499,8 @@ leftclick=true;if(w3c_slidy.selected_text_len>0)
 {w3c_slidy.stop_propagation(e);e.cancel=true;e.returnValue=false;return false;}
 w3c_slidy.hide_table_of_contents(false);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)
+return true;},special_element:function(element){if(this.has_class(element,"non-interactive"))
+return false;var tag=element.nodeName.toLowerCase();return element.onkeydown||element.onclick||tag=="a"||tag=="embed"||tag=="object"||tag=="video"||tag=="audio"||tag=="svg"||tag=="canvas"||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)
@@ -480,7 +510,7 @@ 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;},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)
+target=target.parentNode;return target;},is_block:function(elem){var tag=elem.nodeName.toLowerCase();return tag=="ol"||tag=="ul"||tag=="p"||tag=="dl"||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);},stop_propagation:function(event){event=event?event:window.event;event.cancelBubble=true;if(event.stopPropagation)
 event.stopPropagation();return true;},cancel:function(event){if(event)