function getSlideEl(a){if(a<0||a>=slideEls.length){return null}else{return slideEls[a]}}function updateSlideClass(a,b){var c=getSlideEl(a);if(!c){return}if(b){c.classList.add(b)}for(var d in SLIDE_CLASSES){if(b!=SLIDE_CLASSES[d]){c.classList.remove(SLIDE_CLASSES[d])}}}function updateSlides(){for(var a=0;a0){curSlide--;updateSlides()}}function nextSlide(){if(buildNextItem()){return}if(curSlide1){cancelTouch()}else{touchDX=a.touches[0].pageX-touchStartX;touchDY=a.touches[0].pageY-touchStartY}}function handleTouchEnd(a){var b=Math.abs(touchDX);var c=Math.abs(touchDY);if(b>PM_TOUCH_SENSITIVITY&&c0){prevSlide()}else{nextSlide()}}cancelTouch()}function cancelTouch(){document.body.removeEventListener("touchmove",handleTouchMove,true);document.body.removeEventListener("touchend",handleTouchEnd,true)}function disableSlideFrames(a){var b=getSlideEl(a);if(!b){return}var c=b.getElementsByTagName("iframe");for(var d=0,e;e=c[d];d++){disableFrame(e)}}function enableSlideFrames(a){var b=getSlideEl(a);if(!b){return}var c=b.getElementsByTagName("iframe");for(var d=0,e;e=c[d];d++){enableFrame(e)}}function disableFrame(a){a.src="about:blank"}function enableFrame(a){var b=a._src;if(a.src!=b&&b!="about:blank"){a.src=b}}function setupFrames(){var a=document.querySelectorAll("iframe");for(var b=0,c;c=a[b];b++){c._src=c.src;disableFrame(c)}enableSlideFrames(curSlide);enableSlideFrames(curSlide+1);enableSlideFrames(curSlide+2)}function setupInteraction(){var a=document.createElement("div");a.className="slide-area";a.id="prev-slide-area";a.addEventListener("click",prevSlide,false);document.querySelector("section.slides").appendChild(a);var a=document.createElement("div");a.className="slide-area";a.id="next-slide-area";a.addEventListener("click",nextSlide,false);document.querySelector("section.slides").appendChild(a);document.body.addEventListener("touchstart",handleTouchStart,false)}function isChromeVoxActive(){if(typeof cvox=="undefined"){return false}else{return true}}function speakAndSyncToNode(a){if(!isChromeVoxActive()){return}cvox.ChromeVox.navigationManager.switchToStrategy(cvox.ChromeVoxNavigationManager.STRATEGIES.LINEARDOM,0,true);cvox.ChromeVox.navigationManager.syncToNode(a);cvox.ChromeVoxUserCommands.finishNavCommand("");var b=a;while(b.firstChild){b=b.firstChild}cvox.ChromeVox.navigationManager.syncToNode(b)}function speakNextItem(){if(!isChromeVoxActive()){return}cvox.ChromeVox.navigationManager.switchToStrategy(cvox.ChromeVoxNavigationManager.STRATEGIES.LINEARDOM,0,true);cvox.ChromeVox.navigationManager.next(true);if(!cvox.DomUtil.isDescendantOfNode(cvox.ChromeVox.navigationManager.getCurrentNode(),slideEls[curSlide])){var a=slideEls[curSlide];while(a.firstChild){a=a.firstChild}cvox.ChromeVox.navigationManager.syncToNode(a);cvox.ChromeVox.navigationManager.next(true)}cvox.ChromeVoxUserCommands.finishNavCommand("")}function speakPrevItem(){if(!isChromeVoxActive()){return}cvox.ChromeVox.navigationManager.switchToStrategy(cvox.ChromeVoxNavigationManager.STRATEGIES.LINEARDOM,0,true);cvox.ChromeVox.navigationManager.previous(true);if(!cvox.DomUtil.isDescendantOfNode(cvox.ChromeVox.navigationManager.getCurrentNode(),slideEls[curSlide])){var a=slideEls[curSlide];while(a.lastChild){a=a.lastChild}cvox.ChromeVox.navigationManager.syncToNode(a);cvox.ChromeVox.navigationManager.previous(true)}cvox.ChromeVoxUserCommands.finishNavCommand("")}function getCurSlideFromHash(){var a=parseInt(location.hash.substr(1));if(a){curSlide=a-1}else{curSlide=0}}function updateHash(){location.replace("#"+(curSlide+1))}function handleBodyKeyDown(a){switch(a.keyCode){case 39:case 13:case 32:case 34:nextSlide();a.preventDefault();break;case 37:case 8:case 33:prevSlide();a.preventDefault();break;case 40:if(isChromeVoxActive()){speakNextItem()}else{nextSlide()}a.preventDefault();break;case 38:if(isChromeVoxActive()){speakPrevItem()}else{prevSlide()}a.preventDefault();break}}function addEventListeners(){document.addEventListener("keydown",handleBodyKeyDown,false)}function addFontStyle(){var a=document.createElement("link");a.rel="stylesheet";a.type="text/css";a.href="http://fonts.googleapis.com/css?family="+"Open+Sans:regular,semibold,italic,italicsemibold|Droid+Sans+Mono";document.body.appendChild(a)}function addGeneralStyle(){var a=document.createElement("link");a.rel="stylesheet";a.type="text/css";a.href=PERMANENT_URL_PREFIX+"styles.css";document.body.appendChild(a);var a=document.createElement("meta");a.name="viewport";a.content="width=1100,height=750";document.querySelector("head").appendChild(a);var a=document.createElement("meta");a.name="apple-mobile-web-app-capable";a.content="yes";document.querySelector("head").appendChild(a)}function makeBuildLists(){for(var a=curSlide,b;b=slideEls[a];a++){var c=b.querySelectorAll(".build > *");for(var d=0,e;e=c[d];d++){if(e.classList){e.classList.add("to-build")}}}}function handleDomLoaded(){slideEls=document.querySelectorAll("section.slides > article");setupFrames();addGeneralStyle();addEventListeners();updateSlides();setupInteraction();makeBuildLists();document.body.classList.add("loaded")}function initialize(){getCurSlideFromHash();if(window["_DEBUG"]){PERMANENT_URL_PREFIX="../"}if(window["_DCL"]){handleDomLoaded()}else{document.addEventListener("DOMContentLoaded",handleDomLoaded,false)}}var PERMANENT_URL_PREFIX="inst/frameworks/html5slides";var SLIDE_CLASSES=["far-past","past","current","next","far-next"];var PM_TOUCH_SENSITIVITY=15;var curSlide;if(typeof document!=="undefined"&&!("classList"in document.createElement("a"))){(function(a){var b="classList",c="prototype",d=(a.HTMLElement||a.Element)[c],e=Object;strTrim=String[c].trim||function(){return this.replace(/^\s+|\s+$/g,"")},arrIndexOf=Array[c].indexOf||function(a){for(var b=0,c=this.length;b