var ns_pos=(typeof window.pageYOffset!='undefined');var khtml=((navigator.userAgent).indexOf("KHTML")>=0?true:false);var opera=((navigator.userAgent).indexOf("Opera")>=0?true:false);var ie7=(!ns_pos&&navigator.userAgent.indexOf("MSIE 7")!=-1);window.onload=startup;window.onbeforeprint=beforePrint;window.onafterprint=afterPrint;setTimeout(hideAll,50);function hideAll()
{if(document.body)
document.body.style.visibility="hidden";else
setTimeout(hideAll,50);}
var slidenum=0;var slides;var slideNumElement;var notes;var backgrounds;var toolbar;var title;var lastShown=null;var eos=null;var toc=null;var outline=null;var selectedTextLen;var viewAll=0;var wantToolbar=1;var mouseClickEnabled=true;var scrollhack=0;var helpAnchor;var helpPage="http://www.w3.org/Talks/Tools/Slidy/help.html";var helpText="Navigate with mouse click, space bar, Cursor Left/Right, "+"or Pg Up and Pg Dn. Use S and B to change font size.";var sizeIndex=0;var sizeAdjustment=0;var sizes=new Array("10pt","12pt","14pt","16pt","18pt","20pt","22pt","24pt","26pt","28pt","30pt","32pt");var okayForIncremental=incrementalElementList();var lastWidth=0;var lastHeight=0;var objects;var lang="en";var 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"};strings_es[helpText]="Utilice el ratón, barra espaciadora, teclas Izda/Dcha, "+"o Re pág y Av pág. Use S y B para cambiar el tamańo de fuente.";var strings_ca={"slide":"pŕg..","help?":"Ajuda","contents?":"Índex","table of contents":"taula de continguts","Table of Contents":"Taula de Continguts","restart presentation":"Reiniciar presentació","restart?":"Inici"};strings_ca[helpText]="Utilitzi el ratolí, barra espaiadora, tecles Esq./Dta. "+"o Re pŕg y Av pŕg. Usi S i B per canviar grandŕria de font.";var strings_nl={"slide":"pagina","help?":"Help?","contents?":"Inhoud?","table of contents":"inhoudsopgave","Table of Contents":"Inhoudsopgave","restart presentation":"herstart presentatie","restart?":"Herstart?"};strings_nl[helpText]="Navigeer d.m.v. het muis, spatiebar, Links/Rechts toetsen, "+"of PgUp en PgDn. Gebruik S en B om de karaktergrootte te veranderen.";var strings_de={"slide":"Seite","help?":"Hilfe","contents?":"Übersicht","table of contents":"Inhaltsverzeichnis","Table of Contents":"Inhaltsverzeichnis","restart presentation":"Präsentation neu starten","restart?":"Neustart"};strings_de[helpText]="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.";var strings_pl={"slide":"slajd","help?":"pomoc?","contents?":"spis tre?ci?","table of contents":"spis tre?ci","Table of Contents":"Spis Tre?ci","restart presentation":"Restartuj prezentacj?","restart?":"restart?"};strings_pl[helpText]="Zmieniaj slajdy klikaj?c mysz?, naciskaj?c spacj?, strza?ki lewo/prawo"+"lub PgUp / PgDn. U?yj klawiszy S i B, aby zmieni? rozmiar czczionki.";var strings_fr={"slide":"page","help?":"Aide","contents?":"Index","table of contents":"table des matičres","Table of Contents":"Table des matičres","restart presentation":"Recommencer l'exposé","restart?":"Début"};strings_fr[helpText]="Naviguez avec la souris, la barre d'espace, les flčches "+"gauche/droite ou les touches Pg Up, Pg Dn. Utilisez "+"les touches S et B pour modifier la taille de la police.";var strings_hu={"slide":"oldal","help?":"segítség","contents?":"tartalom","table of contents":"tartalomjegyzék","Table of Contents":"Tartalomjegyzék","restart presentation":"bemutató újraindítása","restart?":"újraindítás"};strings_hu[helpText]="Az oldalak közti lépkedéshez kattintson az egérrel, vagy "+"használja a szóköz, a bal, vagy a jobb nyíl, illetve a Page Down, "+"Page Up billenty?ket. Az S és a B billenty?kkel változtathatja "+"a szöveg méretét.";var strings_it={"slide":"pag.","help?":"Aiuto","contents?":"Indice","table of contents":"indice","Table of Contents":"Indice","restart presentation":"Ricominciare la presentazione","restart?":"Inizio"};strings_it[helpText]="Navigare con mouse, barra spazio, frecce sinistra/destra o "+"PgUp e PgDn. Usare S e B per cambiare la dimensione dei caratteri.";var strings_el={"slide":"??????","help?":"???????;","contents?":"???????????;","table of contents":"??????? ????????????","Table of Contents":"??????? ????????????","restart presentation":"???????????? ???????????","restart?":"????????????;"};strings_el[helpText]="??????????? ?? ?? ???? ??? ?????????, ?? space, ?? ???? ????????/?????, "+"? Page Up ??? Page Down. ?????????????? ?? ??????? S ??? B ??? ?? ???????? "+"?? ??????? ??? ??????????????.";var strings_ja={"slide":"????","help?":"???","contents?":"??","table of contents":"?????","Table of Contents":"??","restart presentation":"??????","restart?":"????"};strings_ja[helpText]="???????? ? ???? ? ???? "+"??? Page Up ? Page Down???? S ? B??????????";var localize={"es":strings_es,"ca":strings_ca,"nl":strings_nl,"de":strings_de,"pl":strings_pl,"fr":strings_fr,"hu":strings_hu,"it":strings_it,"el":strings_el,"jp":strings_ja};function startup()
{lang=document.body.parentNode.getAttribute("lang");if(!lang)
lang=document.body.parentNode.getAttribute("xml:lang");if(!lang)
lang="en";document.body.style.visibility="visible";title=document.title;toolbar=addToolbar();wrapImplicitSlides();slides=collectSlides();notes=collectNotes();objects=document.body.getElementsByTagName("object");backgrounds=collectBackgrounds();patchAnchors();slidenum=findSlideNumber(location.href);window.offscreenbuffering=true;sizeAdjustment=findSizeAdjust();hideImageToolbar();initOutliner();if(slides.length>0)
{var slide=slides[slidenum];slide.style.position="absolute";if(slidenum>0)
{setVisibilityAllIncremental("visible");lastShown=previousIncrementalItem(null);setEosStatus(true);}
else
{lastShown=null;setVisibilityAllIncremental("hidden");setEosStatus(!nextIncrementalItem(lastShown));}
setLocation();}
toc=tableOfContents();hideTableOfContents();document.onclick=mouseButtonClick;document.onmouseup=mouseButtonUp;document.onkeydown=keyDown;window.onresize=resized;window.onscroll=scrolled;singleSlideView();setLocation();resized();if(ie7)
setTimeout("ieHack()",100);showToolbar();}
String.prototype.localize=function()
{if(this=="")
return this;var s,lookup=localize[lang];if(lookup)
{s=lookup[this];if(s)
return s;}
var lg=lang.split("-");if(lg.length>1)
{lookup=localize[lg[0]];if(lookup)
{s=lookup[this];if(s)
return s;}}
return this;}
function hideImageToolbar()
{if(!ns_pos)
{var images=document.getElementsByTagName("IMG");for(var i=0;i<images.length;++i)
										images[i].setAttribute("galleryimg","no");}}
										function ieHack()
										{window.resizeBy(0,-1);window.resizeBy(0,1);}
										function reload(e)
										{if(!e)
										var e=window.event;hideBackgrounds();setTimeout("document.reload();",100);stopPropagation(e);e.cancel=true;e.returnValue=false;return false;}
										function isKHTML()
										{var agent=navigator.userAgent;return(agent.indexOf("KHTML")>=0?true:false);}
	function resized()
	{var width=0;if(typeof(window.innerWidth)=='number')
	width=window.innerWidth;else if(document.documentElement&&document.documentElement.clientWidth)
	width=document.documentElement.clientWidth;else if(document.body&&document.body.clientWidth)
	width=document.body.clientWidth;var height=0;if(typeof(window.innerHeight)=='number')
	height=window.innerHeight;else if(document.documentElement&&document.documentElement.clientHeight)
	height=document.documentElement.clientHeight;else if(document.body&&document.body.clientHeight)
	height=document.body.clientHeight;if(height&&(width/height>1.05*1024/768))
	{width=height*1024.0/768;}
	if(width!=lastWidth||height!=lastHeight)
	{if(width>=1100)
	sizeIndex=5;else if(width>=1000)
	sizeIndex=4;else if(width>=800)
	sizeIndex=3;else if(width>=600)
	sizeIndex=2;else if(width)
	sizeIndex=0;if(0<=sizeIndex+sizeAdjustment&&sizeIndex+sizeAdjustment<sizes.length)
										sizeIndex=sizeIndex+sizeAdjustment;adjustObjectDimensions(width,height);document.body.style.fontSize=sizes[sizeIndex];lastWidth=width;lastHeight=height;{var slide=slides[slidenum];hideSlide(slide);showSlide(slide);}
										refreshToolbar(200);}}
										function scrolled()
										{if(toolbar&&!ns_pos&&!ie7)
										{hackoffset=scrollXOffset();toolbar.style.display="none";if(scrollhack==0&&!viewAll)
										{setTimeout(showToolbar,1000);scrollhack=1;}}}
										function refreshToolbar(interval)
										{if(!ns_pos&&!ie7)
										{hideToolbar();setTimeout(showToolbar,interval);}}
										function showToolbar()
										{if(wantToolbar)
										{if(!ns_pos)
										{var xoffset=scrollXOffset();toolbar.style.left=xoffset;toolbar.style.right=xoffset;toolbar.style.bottom=0;}
										toolbar.style.display="block";toolbar.style.visibility="visible";}
										scrollhack=0;try
										{if(!opera)
										helpAnchor.focus();}
										catch(e)
										{}}
										function test()
										{var s="docH: "+documentHeight()+" winH: "+lastHeight+" yoffset: "+scrollYOffset()+" toolbot: "+(documentHeight()-lastHeight-scrollYOffset());var slide=slides[slidenum];var name=ns_pos?"class":"className";var style=(slide.currentStyle?slide.currentStyle["backgroundColor"]:document.defaultView.getComputedStyle(slide,'').getPropertyValue("background-color"));alert("class='"+slide.getAttribute(name)+"' backgroundColor: "+style);}
										function hideToolbar()
										{toolbar.style.display="none";toolbar.style.visibility="hidden";window.focus();}
										function toggleToolbar()
										{if(!viewAll)
										{if(toolbar.style.display=="none")
										{toolbar.style.display="block";toolbar.style.visibility="visible";wantToolbar=1;}
										else
										{toolbar.style.display="none";toolbar.style.visibility="hidden";wantToolbar=0;}}}
										function scrollXOffset()
										{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;}
										function scrollYOffset()
										{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;}
										function optimizeFontSize()
										{var slide=slides[slidenum];var dh=slide.scrollHeight;var wh=getWindowHeight();var u=100*dh/wh;alert("window utilization = "+u+"% (doc "
										+dh+" win "+wh+")");}
										function getDocHeight(doc)
										{if(!doc)
										doc=document;if(doc&&doc.body&&doc.body.offsetHeight)
										return doc.body.offsetHeight;if(doc&&doc.body&&doc.body.scrollHeight)
										return doc.body.scrollHeight;alert("couldn't determine document height");}
										function getWindowHeight()
										{if(typeof(window.innerHeight)=='number')
										return window.innerHeight;if(document.documentElement&&document.documentElement.clientHeight)
										return document.documentElement.clientHeight;if(document.body&&document.body.clientHeight)
										return document.body.clientHeight;}
										function documentHeight()
										{var sh,oh;sh=document.body.scrollHeight;oh=document.body.offsetHeight;if(sh&&oh)
										{return(sh>oh?sh:oh);}
			return 0;}
			function smaller()
			{if(sizeIndex>0)
			{--sizeIndex;}
			toolbar.style.display="none";document.body.style.fontSize=sizes[sizeIndex];var slide=slides[slidenum];hideSlide(slide);showSlide(slide);setTimeout(showToolbar,300);}
			function bigger()
			{if(sizeIndex<sizes.length-1)
						     {++sizeIndex;}
						     toolbar.style.display="none";document.body.style.fontSize=sizes[sizeIndex];var slide=slides[slidenum];hideSlide(slide);showSlide(slide);setTimeout(showToolbar,300);}
						     function adjustObjectDimensions(width,height)
						     {for(var i=0;i<objects.length;i++)
										{var obj=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);}}}}
										function cancel(event)
										{if(event)
										{event.cancel=true;event.returnValue=false;if(event.preventDefault)
										event.preventDefault();}
										return false;}
										function keyDown(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)
										return true;if(event.ctrlKey||event.altKey||event.metaKey)
										return true;if(isShownToc()&&key!=9&&key!=16&&key!=38&&key!=40)
										{hideTableOfContents();if(key==27||key==84||key==67)
										return cancel(event);}
										if(key==34)
										{nextSlide(false);return cancel(event);}
										else if(key==33)
										{previousSlide(false);return cancel(event);}
										else if(key==32)
										{nextSlide(true);return cancel(event);}
										else if(key==37)
										{previousSlide(!event.shiftKey);return cancel(event);}
										else if(key==36)
										{firstSlide();return cancel(event);}
										else if(key==35)
										{lastSlide();return cancel(event);}
										else if(key==39)
										{nextSlide(!event.shiftKey);return cancel(event);}
										else if(key==13)
										{if(outline)
										{if(outline.visible)
										fold(outline);else
										unfold(outline);return cancel(event);}}
										else if(key==188)
										{smaller();return cancel(event);}
										else if(key==190)
										{bigger();return cancel(event);}
										else if(key==189||key==109)
										{smaller();return cancel(event);}
										else if(key==187||key==191||key==107)
										{bigger();return cancel(event);}
										else if(key==83)
										{smaller();return cancel(event);}
										else if(key==66)
										{bigger();return cancel(event);}
										else if(key==90)
										{lastSlide();return cancel(event);}
										else if(key==70)
										{toggleToolbar();return cancel(event);}
										else if(key==65)
										{toggleView();return cancel(event);}
										else if(key==75)
										{mouseClickEnabled=!mouseClickEnabled;alert((mouseClickEnabled?"enabled":"disabled")+" mouse click advance");return cancel(event);}
										else if(key==84||key==67)
										{if(toc)
										showTableOfContents();return cancel(event);}
										else if(key==72)
										{window.location=helpPage;return cancel(event);}
										return true;}
										function mouseButtonUp(e)
										{selectedTextLen=getSelectedText().length;}
										function mouseButtonClick(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;if(target.nodeType==3)
										target=target.parentNode;if(e.which)
										{leftclick=(e.which==1);middleclick=(e.which==2);rightclick=(e.which==3);}
										else if(e.button)
										{if(e.button==4)
										middleclick=true;rightclick=(e.button==2);}
										else leftclick=true;hideTableOfContents();if(selectedTextLen>0)
							     {stopPropagation(e);e.cancel=true;e.returnValue=false;return false;}
							     if(mouseClickEnabled&&leftclick&&target.nodeName!="EMBED"&&target.nodeName!="OBJECT"&&target.nodeName!="INPUT"&&target.nodeName!="TEXTAREA"&&target.nodeName!="SELECT"&&target.nodeName!="OPTION")
							     {nextSlide(true);stopPropagation(e);e.cancel=true;e.returnValue=false;}}
							     function previousSlide(incremental)
							     {if(!viewAll)
							     {var slide;if((incremental||slidenum==0)&&lastShown!=null)
							     {lastShown=hidePreviousItem(lastShown);setEosStatus(false);}
							     else if(slidenum>0)
							     {slide=slides[slidenum];hideSlide(slide);slidenum=slidenum-1;slide=slides[slidenum];setVisibilityAllIncremental("visible");lastShown=previousIncrementalItem(null);setEosStatus(true);showSlide(slide);}
							     setLocation();if(!ns_pos)
							     refreshToolbar(200);}}
							     function nextSlide(incremental)
							     {if(!viewAll)
							     {var slide,last=lastShown;if(incremental||slidenum==slides.length-1)
							     lastShown=revealNextItem(lastShown);if((!incremental||lastShown==null)&&slidenum<slides.length-1)
										{slide=slides[slidenum];hideSlide(slide);slidenum=slidenum+1;slide=slides[slidenum];lastShown=null;setVisibilityAllIncremental("hidden");showSlide(slide);}
										else if(!lastShown)
										{if(last&&incremental)
										lastShown=last;}
										setLocation();setEosStatus(!nextIncrementalItem(lastShown));if(!ns_pos)
										refreshToolbar(200);}}
										function firstSlide()
										{if(!viewAll)
										{var slide;if(slidenum!=0)
										{slide=slides[slidenum];hideSlide(slide);slidenum=0;slide=slides[slidenum];lastShown=null;setVisibilityAllIncremental("hidden");showSlide(slide);}
										setEosStatus(!nextIncrementalItem(lastShown));setLocation();}}
										function lastSlide()
										{if(!viewAll)
										{var slide;lastShown=null;if(lastShown==null&&slidenum<slides.length-1)
										{slide=slides[slidenum];hideSlide(slide);slidenum=slides.length-1;slide=slides[slidenum];setVisibilityAllIncremental("visible");lastShown=previousIncrementalItem(null);showSlide(slide);}
										else
										{setVisibilityAllIncremental("visible");lastShown=previousIncrementalItem(null);}
										setEosStatus(true);setLocation();}}
										function setEosStatus(state)
										{if(eos)
										eos.style.color=(state?"rgb(240,240,240)":"red");}
										function showSlide(slide)
										{syncBackground(slide);window.scrollTo(0,0);slide.style.visibility="visible";slide.style.display="block";}
										function hideSlide(slide)
										{slide.style.visibility="hidden";slide.style.display="none";}
										function beforePrint()
										{showAllSlides();hideToolbar();}
										function afterPrint()
										{if(!viewAll)
										{singleSlideView();showToolbar();}}
										function printSlides()
										{beforePrint();window.print();afterPrint();}
										function toggleView()
										{if(viewAll)
										{singleSlideView();showToolbar();viewAll=0;}
										else
										{showAllSlides();hideToolbar();viewAll=1;}}
										function showAllSlides()
										{var slide;for(var i=0;i<slides.length;++i)
										{slide=slides[i];slide.style.position="relative";slide.style.borderTopStyle="solid";slide.style.borderTopWidth="thin";slide.style.borderTopColor="black";try{if(i==0)
										slide.style.pageBreakBefore="avoid";else
										slide.style.pageBreakBefore="always";}
										catch(e)
										{}
										setVisibilityAllIncremental("visible");showSlide(slide);}
										var note;for(var i=0;i<notes.length;++i)
										{showSlide(notes[i]);}
										hideBackgrounds();}
										function singleSlideView()
										{var slide;for(var i=0;i<slides.length;++i)
										{slide=slides[i];slide.style.position="absolute";if(i==slidenum)
										{slide.style.borderStyle="none";showSlide(slide);}
										else
										{slide.style.borderStyle="none";hideSlide(slide);}}
										setVisibilityAllIncremental("visible");lastShown=previousIncrementalItem(null);var note;for(var i=0;i<notes.length;++i)
										{hideSlide(notes[i]);}}
										function hasToken(str,token)
										{if(str)
										{var pattern=/\w+/g;var result=str.match(pattern);for(var i=0;i<result.length;i++)
										{if(result[i]==token)
										return true;}}
										return false;}
										function getClassList(element)
										{if(typeof window.pageYOffset=='undefined')
										return element.getAttribute("className");return element.getAttribute("class");}
										function hasClass(element,name)
										{var regexp=new RegExp("(^| )"+name+"\W*");if(regexp.test(getClassList(element)))
										return true;return false;}
										function removeClass(element,name)
										{var clsname=ns_pos?"class":"className";var clsval=element.getAttribute(clsname);var regexp=new RegExp("(^| )"+name+"\W*");if(clsval)
										{clsval=clsval.replace(regexp,"");element.setAttribute(clsname,clsval);}}
										function addClass(element,name)
										{if(!hasClass(element,name))
										{var clsname=ns_pos?"class":"className";var clsval=element.getAttribute(clsname);element.setAttribute(clsname,(clsval?clsval+" "+name:name));}}
										function wrapImplicitSlides()
										{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");div.setAttribute((ns_pos?"class":"className"),"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;}}}
										function collectSlides()
										{var slides=new Array();var divs=document.body.getElementsByTagName("div");for(var i=0;i<divs.length;++i)
										{div=divs.item(i);if(hasClass(div,"slide"))
										{slides[slides.length]=div;div.style.display="none";div.style.visibility="hidden";var node1=document.createElement("br");div.appendChild(node1);var node2=document.createElement("br");div.appendChild(node2);}
										else if(hasClass(div,"background"))
										{div.style.display="block";}}
										return slides;}
										function collectNotes()
										{var notes=new Array();var divs=document.body.getElementsByTagName("div");for(var i=0;i<divs.length;++i)
										{div=divs.item(i);if(hasClass(div,"handout"))
										{notes[notes.length]=div;div.style.display="none";div.style.visibility="hidden";}}
										return notes;}
										function collectBackgrounds()
										{var backgrounds=new Array();var divs=document.body.getElementsByTagName("div");for(var i=0;i<divs.length;++i)
										{div=divs.item(i);if(hasClass(div,"background"))
										{backgrounds[backgrounds.length]=div;if(getClassList(div)!="background")
										{div.style.display="none";div.style.visibility="hidden";}}}
										return backgrounds;}
										function syncBackground(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
										{bgColor="transparent";}}
										else
										bgColor=="transparent";if(bgColor=="transparent")
										{var slideClass=getClassList(slide);for(var i=0;i<backgrounds.length;i++)
										{background=backgrounds[i];var bgClass=getClassList(background);if(matchingBackground(slideClass,bgClass))
										{background.style.display="block";background.style.visibility="visible";}
										else
										{background.style.display="none";background.style.visibility="hidden";}}}
										else
										hideBackgrounds();}
										function hideBackgrounds()
										{for(var i=0;i<backgrounds.length;i++)
										{background=backgrounds[i];background.style.display="none";background.style.visibility="hidden";}}
										function matchingBackground(slideClass,bgClass)
										{if(bgClass=="background")
										return true;var pattern=/\w+/g;var result=slideClass.match(pattern);for(var i=0;i<result.length;i++)
										{if(hasToken(bgClass,result[i]))
										return true;}
										return false;}
										function nextNode(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;}
										function previousNode(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;}
										function incrementalElementList()
										{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;return inclist;}
										function nextIncrementalItem(node)
										{var slide=slides[slidenum];for(;;)
										{node=nextNode(slide,node);if(node==null||node.parentNode==null)
										break;if(node.nodeType==1)
										{if(node.nodeName=="BR")
										continue;if(hasClass(node,"incremental")&&okayForIncremental[node.nodeName])
										return node;if(hasClass(node.parentNode,"incremental")&&!hasClass(node,"non-incremental"))
										return node;}}
										return node;}
										function previousIncrementalItem(node)
										{var slide=slides[slidenum];for(;;)
										{node=previousNode(slide,node);if(node==null||node.parentNode==null)
										break;if(node.nodeType==1)
										{if(node.nodeName=="BR")
										continue;if(hasClass(node,"incremental")&&okayForIncremental[node.nodeName])
										return node;if(hasClass(node.parentNode,"incremental")&&!hasClass(node,"non-incremental"))
										return node;}}
										return node;}
										function setVisibilityAllIncremental(value)
										{var node=nextIncrementalItem(null);while(node)
										{node.style.visibility=value;node=nextIncrementalItem(node);}}
										function revealNextItem(node)
										{node=nextIncrementalItem(node);if(node&&node.nodeType==1)
										node.style.visibility="visible";return node;}
										function hidePreviousItem(node)
										{if(node&&node.nodeType==1)
										node.style.visibility="hidden";return previousIncrementalItem(node);}
										function patchAnchors()
										{var anchors=document.body.getElementsByTagName("a");for(var i=0;i<anchors.length;++i)
										{anchors[i].onclick=clickedAnchor;}}
										function clickedAnchor(e)
										{if(!e)
										var e=window.event;if(pageAddress(this.href)==pageAddress(location.href))
										{var newslidenum=findSlideNumber(this.href);if(newslidenum!=slidenum)
										{slide=slides[slidenum];hideSlide(slide);slidenum=newslidenum;slide=slides[slidenum];showSlide(slide);setLocation();}}
										else if(this.target==null)
										location.href=this.href;this.blur();stopPropagation(e);}
										function pageAddress(uri)
										{var i=uri.indexOf("#");if(i<0)
										return uri;return uri.substr(0,i);}
										function showSlideNumber()
										{slideNumElement.innerHTML="slide".localize()+" "+
										(slidenum+1)+"/"+slides.length;}
										function setLocation()
										{var uri=pageAddress(location.href);uri=uri+"#("+(slidenum+1)+")";if(uri!=location.href&&!khtml)
										location.href=uri;document.title=title+" ("+(slidenum+1)+")";showSlideNumber();}
										function findSlideNumber(uri)
										{var i=uri.indexOf("#");if(i<0)
										return 0;var anchor=unescape(uri.substr(i+1));var target=document.getElementById(anchor);if(!target)
										{var re=/\((\d)+\)/;if(anchor.match(re))
										{var num=parseInt(anchor.substring(1,anchor.length-1));if(num>slides.length)
										num=1;if(--num<0)
										num=0;return num;}
										re=/\[(\d)+\]/;if(anchor.match(re))
										{var num=parseInt(anchor.substring(1,anchor.length-1));if(num>slides.length)
										num=1;if(--num<0)
										num=0;return num;}
										return 0;}
										while(true)
										{if(target.nodeName.toLowerCase()=="div"&&hasClass(target,"slide"))
										{break;}
										target=target.parentNode;if(!target)
										{return 0;}};for(i=0;i<slides.length;++i)
										{if(slides[i]==target)
										return i;}
										return 0;}
										function slideName(index)
										{var name=null;var slide=slides[index];var heading=findHeading(slide);if(heading)
										name=extractText(heading);if(!name)
										name=title+"("+(index+1)+")";name.replace(/\&/g,"&amp;");name.replace(/\</g,"&lt;");name.replace(/\>/g,"&gt;");return name;}
									function findHeading(node)
									{if(!node||node.nodeType!=1)
									return null;if(node.nodeName=="H1"||node.nodeName=="h1")
									return node;var child=node.firstChild;while(child)
									{node=findHeading(child);if(node)
									return node;child=child.nextSibling;}
									return null;}
									function extractText(node)
									{if(!node)
									return"";if(node.nodeType==3)
									return node.nodeValue;if(node.nodeType==1)
									{node=node.firstChild;var text="";while(node)
									{text=text+extractText(node);node=node.nextSibling;}
									return text;}
									return"";}
									function findCopyright()
									{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;}
										function findSizeAdjust()
										{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 0;}
										function addToolbar()
										{var slideCounter,page;var toolbar=createElement("div");toolbar.setAttribute("class","toolbar");if(ns_pos)
										{var right=document.createElement("div");right.setAttribute("style","float: right; text-align: right");slideCounter=document.createElement("div")
										slideCounter.innerHTML="slide".localize()+" n/m";right.appendChild(slideCounter);toolbar.appendChild(right);var left=document.createElement("div");left.setAttribute("style","text-align: left");eos=document.createElement("span");eos.innerHTML="* ";left.appendChild(eos);var help=document.createElement("a");help.setAttribute("href",helpPage);help.setAttribute("title",helpText.localize());help.innerHTML="help?".localize();left.appendChild(help);helpAnchor=help;var gap1=document.createTextNode(" ");left.appendChild(gap1);var contents=document.createElement("a");contents.setAttribute("href","javascript:toggleTableOfContents()");contents.setAttribute("title","table of contents".localize());contents.innerHTML="contents?".localize();left.appendChild(contents);var gap2=document.createTextNode(" ");left.appendChild(gap2);var i=location.href.indexOf("#");if(i>0)
										page=location.href.substr(0,i);else
										page=location.href;var start=document.createElement("a");start.setAttribute("href",page);start.setAttribute("title","restart presentation".localize());start.innerHTML="restart?".localize();left.appendChild(start);var copyright=findCopyright();if(copyright)
										{var span=document.createElement("span");span.innerHTML=copyright;span.style.color="black";span.style.marginLeft="4em";left.appendChild(span);}
										toolbar.appendChild(left);}
										else
										{toolbar.style.position=(ie7?"fixed":"absolute");toolbar.style.zIndex="200";toolbar.style.width="99.9%";toolbar.style.height="1.2em";toolbar.style.top="auto";toolbar.style.bottom="0";toolbar.style.left="0";toolbar.style.right="0";toolbar.style.textAlign="left";toolbar.style.fontSize="60%";toolbar.style.color="red";toolbar.borderWidth=0;toolbar.style.background="rgb(240,240,240)";var sp=document.createElement("span");sp.innerHTML="&nbsp;&nbsp;*&nbsp;";toolbar.appendChild(sp);eos=sp;var help=document.createElement("a");help.setAttribute("href",helpPage);help.setAttribute("title",helpText.localize());help.innerHTML="help?".localize();toolbar.appendChild(help);helpAnchor=help;var gap1=document.createTextNode(" ");toolbar.appendChild(gap1);var contents=document.createElement("a");contents.setAttribute("href","javascript:toggleTableOfContents()");contents.setAttribute("title","table of contents".localize());contents.innerHTML="contents?".localize();toolbar.appendChild(contents);var gap2=document.createTextNode(" ");toolbar.appendChild(gap2);var i=location.href.indexOf("#");if(i>0)
										page=location.href.substr(0,i);else
										page=location.href;var start=document.createElement("a");start.setAttribute("href",page);start.setAttribute("title","restart presentation".localize());start.innerHTML="restart?".localize();toolbar.appendChild(start);var copyright=findCopyright();if(copyright)
										{var span=document.createElement("span");span.innerHTML=copyright;span.style.color="black";span.style.marginLeft="2em";toolbar.appendChild(span);}
										slideCounter=document.createElement("div")
										slideCounter.style.position="absolute";slideCounter.style.width="auto";slideCounter.style.height="1.2em";slideCounter.style.top="auto";slideCounter.style.bottom=0;slideCounter.style.right="0";slideCounter.style.textAlign="right";slideCounter.style.color="red";slideCounter.style.background="rgb(240,240,240)";slideCounter.innerHTML="slide".localize()+" n/m";toolbar.appendChild(slideCounter);}
										toolbar.onclick=stopPropagation;document.body.appendChild(toolbar);slideNumElement=slideCounter;setEosStatus(false);return toolbar;}
										function isShownToc()
										{if(toc&&toc.style.visible=="visible")
										return true;return false;}
										function showTableOfContents()
										{if(toc)
										{if(toc.style.visibility!="visible")
										{toc.style.visibility="visible";toc.style.display="block";toc.focus();if(ie7&&slidenum==0)
										setTimeout("ieHack()",100);}
										else
										hideTableOfContents();}}
										function hideTableOfContents()
										{if(toc&&toc.style.visibility!="hidden")
										{toc.style.visibility="hidden";toc.style.display="none";try
										{if(!opera)
										helpAnchor.focus();}
										catch(e)
										{}}}
										function toggleTableOfContents()
										{if(toc)
										{if(toc.style.visible!="visible")
										showTableOfContents();else
										hideTableOfContents();}}
										function gotoEntry(e)
										{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)
										target=target.parentNode;if(target&&target.nodeType==1)
										{var uri=target.getAttribute("href");if(uri)
										{var slide=slides[slidenum];hideSlide(slide);slidenum=findSlideNumber(uri);slide=slides[slidenum];lastShown=null;setLocation();setVisibilityAllIncremental("hidden");setEosStatus(!nextIncrementalItem(lastShown));showSlide(slide);try
										{if(!opera)
										helpAnchor.focus();}
										catch(e)
										{}}}
										hideTableOfContents(e);if(ie7)ieHack();stopPropagation(e);return cancel(e);}
										function gotoTocEntry(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)
										return true;if(event.ctrlKey||event.altKey)
										return true;if(key==13)
										{var uri=this.getAttribute("href");if(uri)
										{var slide=slides[slidenum];hideSlide(slide);slidenum=findSlideNumber(uri);slide=slides[slidenum];lastShown=null;setLocation();setVisibilityAllIncremental("hidden");setEosStatus(!nextIncrementalItem(lastShown));showSlide(slide);try
										{if(!opera)
										helpAnchor.focus();}
										catch(e)
										{}}
										hideTableOfContents();if(ie7)ieHack();return cancel(event);}
										if(key==40&&this.next)
										{this.next.focus();return cancel(event);}
										if(key==38&&this.previous)
										{this.previous.focus();return cancel(event);}
										return true;}
										function isTitleSlide(slide)
										{return hasClass(slide,"title");}
										function tableOfContents()
										{var toc=document.createElement("div");addClass(toc,"toc");var heading=document.createElement("div");addClass(heading,"toc-heading");heading.innerHTML="Table of Contents".localize();heading.style.textAlign="center";heading.style.width="100%";heading.style.margin="0";heading.style.marginBottom="1em";heading.style.borderBottomStyle="solid";heading.style.borderBottomColor="rgb(180,180,180)";heading.style.borderBottomWidth="1px";toc.appendChild(heading);var previous=null;for(var i=0;i<slides.length;++i)
										{var title=hasClass(slides[i],"title");var num=document.createTextNode((i+1)+". ");toc.appendChild(num);var a=document.createElement("a");a.setAttribute("href","#("+(i+1)+")");if(title)
										addClass(a,"titleslide");var name=document.createTextNode(slideName(i));a.appendChild(name);a.onclick=gotoEntry;a.onkeydown=gotoTocEntry;a.previous=previous;if(previous)
										previous.next=a;toc.appendChild(a);if(i==0)
										toc.first=a;if(i<slides.length-1)
										{var br=document.createElement("br");toc.appendChild(br);}
										previous=a;}
										toc.focus=function(){if(this.first)
										this.first.focus();}
										toc.onclick=function(e){e||(e=window.event);hideTableOfContents();stopPropagation(e);if(e.cancel!=undefined)
										e.cancel=true;if(e.returnValue!=undefined)
										e.returnValue=false;return false;};toc.style.position="absolute";toc.style.zIndex="300";toc.style.width="60%";toc.style.maxWidth="30em";toc.style.height="30em";toc.style.overflow="auto";toc.style.top="auto";toc.style.right="auto";toc.style.left="4em";toc.style.bottom="4em";toc.style.padding="1em";toc.style.background="rgb(240,240,240)";toc.style.borderStyle="solid";toc.style.borderWidth="2px";toc.style.fontSize="60%";document.body.insertBefore(toc,document.body.firstChild);return toc;}
										function replaceByNonBreakingSpace(str)
										{for(var i=0;i<str.length;++i)
										str[i]=160;}
										function initOutliner()
										{var items=document.getElementsByTagName("LI");for(var i=0;i<items.length;++i)
										{var target=items[i];if(!hasClass(target.parentNode,"outline"))
										continue;target.onclick=outlineClick;if(!ns_pos)
										{target.onmouseover=hoverOutline;target.onmouseout=unhoverOutline;}
										if(foldable(target))
										{target.foldable=true;target.onfocus=function(){outline=this;};target.onblur=function(){outline=null;};if(!target.getAttribute("tabindex"))
										target.setAttribute("tabindex","0");if(hasClass(target,"expand"))
										unfold(target);else
										fold(target);}
										else
										{addClass(target,"nofold");target.visible=true;target.foldable=false;}}}
										function foldable(item)
										{if(!item||item.nodeType!=1)
										return false;var node=item.firstChild;while(node)
										{if(node.nodeType==1&&isBlock(node))
										return true;node=node.nextSibling;}
										return false;}
										function fold(item)
										{if(item)
										{removeClass(item,"unfolded");addClass(item,"folded");}
										var node=item?item.firstChild:null;while(node)
										{if(node.nodeType==1&&isBlock(node))
										{node.display=getElementStyle(node,"display","display");node.style.display="none";node.style.visibility="hidden";}
										node=node.nextSibling;}
										item.visible=false;}
										function unfold(item)
										{if(item)
										{addClass(item,"unfolded");removeClass(item,"folded");}
										var node=item?item.firstChild:null;while(node)
										{if(node.nodeType==1&&isBlock(node))
										{node.style.display=(node.display?node.display:"block");node.style.visibility="visible";}
										node=node.nextSibling;}
										item.visible=true;}
										function outlineClick(e)
										{var rightclick=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)
										target=target.parentNode;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)
										fold(target);else
										unfold(target);}
										stopPropagation(e);e.cancel=true;e.returnValue=false;}
										return false;}
										function hoverOutline(e)
										{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)
										target=target.parentNode;while(target&&target.visible==undefined)
										target=target.parentNode;if(target&&target.foldable)
										target.style.cursor="pointer";return true;}
										function unhoverOutline(e)
										{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)
										target=target.parentNode;while(target&&target.visible==undefined)
										target=target.parentNode;if(target)
										target.style.cursor="default";return true;}
										function stopPropagation(e)
										{if(window.event)
										{window.event.cancelBubble=true;}
										else if(e)
										{e.cancelBubble=true;e.stopPropagation();}}
										function isBlock(elem)
										{var tag=elem.nodeName;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";}
										function getElementStyle(elem,IEStyleProp,CSSStyleProp)
										{if(elem.currentStyle)
										{return elem.currentStyle[IEStyleProp];}
										else if(window.getComputedStyle)
										{var compStyle=window.getComputedStyle(elem,"");return compStyle.getPropertyValue(CSSStyleProp);}
										return"";}
										function createElement(element)
										{if(typeof document.createElementNS!='undefined')
										{return document.createElementNS('http://www.w3.org/1999/xhtml',element);}
										if(typeof document.createElement!='undefined')
										{return document.createElement(element);}
										return false;}
										function getElementsByTagName(name)
										{if(typeof document.getElementsByTagNameNS!='undefined')
										{return document.getElementsByTagNameNS('http://www.w3.org/1999/xhtml',name);}
										if(typeof document.getElementsByTagName!='undefined')
										{return document.getElementsByTagName(name);}
										return null;}
										function getSelectedText()
										{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"";}
return"";}