/*!
 * SmoothScroll for websites v1.4.0 (Balazs Galambosi)
 */
(function(){var defaultOptions={frameRate:150,animationTime:400,stepSize:100,pulseAlgorithm:true,pulseScale:4,pulseNormalize:1,accelerationDelta:50,accelerationMax:3,keyboardSupport:true,arrowScroll:50,touchpadSupport:false,fixedBackground:true,excluded:""};var options=defaultOptions;var isExcluded=false;var isFrame=false;var direction={x:0,y:0};var initDone=false;var root=document.documentElement;var activeElement;var observer;var refreshSize;var deltaBuffer=[];var isMac=/^Mac/.test(navigator.platform);var key={left:37,up:38,right:39,down:40,spacebar:32,pageup:33,pagedown:34,end:35,home:36};function initTest(){if(options.keyboardSupport){addEvent("keydown",keydown)}}function init(){if(initDone||!document.body)return;initDone=true;var body=document.body;var html=document.documentElement;var windowHeight=window.innerHeight;var scrollHeight=body.scrollHeight;root=document.compatMode.indexOf("CSS")>=0?html:body;activeElement=body;initTest();if(top!=self){isFrame=true}else if(scrollHeight>windowHeight&&(body.offsetHeight<=windowHeight||html.offsetHeight<=windowHeight)){var fullPageElem=document.createElement("div");fullPageElem.style.cssText="position:absolute; z-index:-10000; "+"top:0; left:0; right:0; height:"+root.scrollHeight+"px";document.body.appendChild(fullPageElem);var pendingRefresh;refreshSize=function(){if(pendingRefresh)return;pendingRefresh=setTimeout(function(){if(isExcluded)return;fullPageElem.style.height="0";fullPageElem.style.height=root.scrollHeight+"px";pendingRefresh=null},500)};setTimeout(refreshSize,10);addEvent("resize",refreshSize);var config={attributes:true,childList:true,characterData:false};observer=new MutationObserver(refreshSize);observer.observe(body,config);if(root.offsetHeight<=windowHeight){var clearfix=document.createElement("div");clearfix.style.clear="both";body.appendChild(clearfix)}}if(!options.fixedBackground&&!isExcluded){body.style.backgroundAttachment="scroll";html.style.backgroundAttachment="scroll"}}function cleanup(){observer&&observer.disconnect();removeEvent(wheelEvent,wheel);removeEvent("mousedown",mousedown);removeEvent("keydown",keydown);removeEvent("resize",refreshSize);removeEvent("load",init)}var que=[];var pending=false;var lastScroll=Date.now();function scrollArray(elem,left,top){directionCheck(left,top);if(options.accelerationMax!=1){var now=Date.now();var elapsed=now-lastScroll;if(elapsed<options.accelerationDelta){var factor=(1+50/elapsed)/2;if(factor>1){factor=Math.min(factor,options.accelerationMax);left*=factor;top*=factor}}lastScroll=Date.now()}que.push({x:left,y:top,lastX:left<0?.99:-.99,lastY:top<0?.99:-.99,start:Date.now()});if(pending){return}var scrollWindow=elem===document.body;var step=function(time){var now=Date.now();var scrollX=0;var scrollY=0;for(var i=0;i<que.length;i++){var item=que[i];var elapsed=now-item.start;var finished=elapsed>=options.animationTime;var position=finished?1:elapsed/options.animationTime;if(options.pulseAlgorithm){position=pulse(position)}var x=item.x*position-item.lastX>>0;var y=item.y*position-item.lastY>>0;scrollX+=x;scrollY+=y;item.lastX+=x;item.lastY+=y;if(finished){que.splice(i,1);i--}}if(scrollWindow){window.scrollBy(scrollX,scrollY)}else{if(scrollX)elem.scrollLeft+=scrollX;if(scrollY)elem.scrollTop+=scrollY}if(!left&&!top){que=[]}if(que.length){requestFrame(step,elem,1e3/options.frameRate+1)}else{pending=false}};requestFrame(step,elem,0);pending=true}function wheel(event){if(!initDone){init()}var target=event.target;var overflowing=overflowingAncestor(target);if(!overflowing||event.defaultPrevented||event.ctrlKey){return true}if(isNodeName(activeElement,"embed")||isNodeName(target,"embed")&&/\.pdf/i.test(target.src)||isNodeName(activeElement,"object")){return true}var deltaX=-event.wheelDeltaX||event.deltaX||0;var deltaY=-event.wheelDeltaY||event.deltaY||0;if(isMac){if(event.wheelDeltaX&&isDivisible(event.wheelDeltaX,120)){deltaX=-120*(event.wheelDeltaX/Math.abs(event.wheelDeltaX))}if(event.wheelDeltaY&&isDivisible(event.wheelDeltaY,120)){deltaY=-120*(event.wheelDeltaY/Math.abs(event.wheelDeltaY))}}if(!deltaX&&!deltaY){deltaY=-event.wheelDelta||0}if(event.deltaMode===1){deltaX*=40;deltaY*=40}if(!options.touchpadSupport&&isTouchpad(deltaY)){return true}if(Math.abs(deltaX)>1.2){deltaX*=options.stepSize/120}if(Math.abs(deltaY)>1.2){deltaY*=options.stepSize/120}scrollArray(overflowing,deltaX,deltaY);event.preventDefault();scheduleClearCache()}function keydown(event){var target=event.target;var modifier=event.ctrlKey||event.altKey||event.metaKey||event.shiftKey&&event.keyCode!==key.spacebar;if(!document.body.contains(activeElement)){activeElement=document.activeElement}var inputNodeNames=/^(textarea|select|embed|object)$/i;var buttonTypes=/^(button|submit|radio|checkbox|file|color|image)$/i;if(inputNodeNames.test(target.nodeName)||isNodeName(target,"input")&&!buttonTypes.test(target.type)||isNodeName(activeElement,"video")||isInsideYoutubeVideo(event)||target.isContentEditable||event.defaultPrevented||modifier){return true}if((isNodeName(target,"button")||isNodeName(target,"input")&&buttonTypes.test(target.type))&&event.keyCode===key.spacebar){return true}var shift,x=0,y=0;var elem=overflowingAncestor(activeElement);var clientHeight=elem.clientHeight;if(elem==document.body){clientHeight=window.innerHeight}switch(event.keyCode){case key.up:y=-options.arrowScroll;break;case key.down:y=options.arrowScroll;break;case key.spacebar:shift=event.shiftKey?1:-1;y=-shift*clientHeight*.9;break;case key.pageup:y=-clientHeight*.9;break;case key.pagedown:y=clientHeight*.9;break;case key.home:y=-elem.scrollTop;break;case key.end:var damt=elem.scrollHeight-elem.scrollTop-clientHeight;y=damt>0?damt+10:0;break;case key.left:x=-options.arrowScroll;break;case key.right:x=options.arrowScroll;break;default:return true}scrollArray(elem,x,y);event.preventDefault();scheduleClearCache()}function mousedown(event){activeElement=event.target}var uniqueID=function(){var i=0;return function(el){return el.uniqueID||(el.uniqueID=i++)}}();var cache={};var clearCacheTimer;function scheduleClearCache(){clearTimeout(clearCacheTimer);clearCacheTimer=setInterval(function(){cache={}},1*1e3)}function setCache(elems,overflowing){for(var i=elems.length;i--;)cache[uniqueID(elems[i])]=overflowing;return overflowing}function overflowingAncestor(el){var elems=[];var body=document.body;var rootScrollHeight=root.scrollHeight;do{var cached=cache[uniqueID(el)];if(cached){return setCache(elems,cached)}elems.push(el);if(rootScrollHeight===el.scrollHeight){var topOverflowsNotHidden=overflowNotHidden(root)&&overflowNotHidden(body);var isOverflowCSS=topOverflowsNotHidden||overflowAutoOrScroll(root);if(isFrame&&isContentOverflowing(root)||!isFrame&&isOverflowCSS){return setCache(elems,getScrollRoot())}}else if(isContentOverflowing(el)&&overflowAutoOrScroll(el)){return setCache(elems,el)}}while(el=el.parentElement)}function isContentOverflowing(el){return el.clientHeight+10<el.scrollHeight}function overflowNotHidden(el){var overflow=getComputedStyle(el,"").getPropertyValue("overflow-y");return overflow!=="hidden"}function overflowAutoOrScroll(el){var overflow=getComputedStyle(el,"").getPropertyValue("overflow-y");return overflow==="scroll"||overflow==="auto"}function addEvent(type,fn){window.addEventListener(type,fn,false)}function removeEvent(type,fn){window.removeEventListener(type,fn,false)}function isNodeName(el,tag){return(el.nodeName||"").toLowerCase()===tag.toLowerCase()}function directionCheck(x,y){x=x>0?1:-1;y=y>0?1:-1;if(direction.x!==x||direction.y!==y){direction.x=x;direction.y=y;que=[];lastScroll=0}}var deltaBufferTimer;if(window.localStorage&&localStorage.SS_deltaBuffer){deltaBuffer=localStorage.SS_deltaBuffer.split(",")}function isTouchpad(deltaY){if(!deltaY)return;if(!deltaBuffer.length){deltaBuffer=[deltaY,deltaY,deltaY]}deltaY=Math.abs(deltaY);deltaBuffer.push(deltaY);deltaBuffer.shift();clearTimeout(deltaBufferTimer);deltaBufferTimer=setTimeout(function(){if(window.localStorage){localStorage.SS_deltaBuffer=deltaBuffer.join(",")}},1e3);return!allDeltasDivisableBy(120)&&!allDeltasDivisableBy(100)}function isDivisible(n,divisor){return Math.floor(n/divisor)==n/divisor}function allDeltasDivisableBy(divisor){return isDivisible(deltaBuffer[0],divisor)&&isDivisible(deltaBuffer[1],divisor)&&isDivisible(deltaBuffer[2],divisor)}function isInsideYoutubeVideo(event){var elem=event.target;var isControl=false;if(document.URL.indexOf("www.youtube.com/watch")!=-1){do{isControl=elem.classList&&elem.classList.contains("html5-video-controls");if(isControl)break}while(elem=elem.parentNode)}return isControl}var requestFrame=function(){return window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||function(callback,element,delay){window.setTimeout(callback,delay||1e3/60)}}();var MutationObserver=window.MutationObserver||window.WebKitMutationObserver||window.MozMutationObserver;var getScrollRoot=function(){var SCROLL_ROOT;return function(){if(!SCROLL_ROOT){var dummy=document.createElement("div");dummy.style.cssText="height:10000px;width:1px;";document.body.appendChild(dummy);var bodyScrollTop=document.body.scrollTop;var docElScrollTop=document.documentElement.scrollTop;window.scrollBy(0,3);if(document.body.scrollTop!=bodyScrollTop)SCROLL_ROOT=document.body;else SCROLL_ROOT=document.documentElement;window.scrollBy(0,-3);document.body.removeChild(dummy)}return SCROLL_ROOT}}();function pulse_(x){var val,start,expx;x=x*options.pulseScale;if(x<1){val=x-(1-Math.exp(-x))}else{start=Math.exp(-1);x-=1;expx=1-Math.exp(-x);val=start+expx*(1-start)}return val*options.pulseNormalize}function pulse(x){if(x>=1)return 1;if(x<=0)return 0;if(options.pulseNormalize==1){options.pulseNormalize/=pulse_(1)}return pulse_(x)}var userAgent=window.navigator.userAgent;var isEdge=/Edge/.test(userAgent);var isChrome=/chrome/i.test(userAgent)&&!isEdge;var isSafari=/safari/i.test(userAgent)&&!isEdge;var isMobile=/mobile/i.test(userAgent);var isIEWin7=/Windows NT 6.1/i.test(userAgent)&&/rv:11/i.test(userAgent);var isEnabledForBrowser=(isChrome||isSafari||isIEWin7)&&!isMobile;var wheelEvent;if("onwheel"in document.createElement("div"))wheelEvent="wheel";else if("onmousewheel"in document.createElement("div"))wheelEvent="mousewheel";if(wheelEvent&&isEnabledForBrowser){addEvent(wheelEvent,wheel);addEvent("mousedown",mousedown);addEvent("load",init)}function SmoothScroll(optionsToSet){for(var key in optionsToSet)if(defaultOptions.hasOwnProperty(key))options[key]=optionsToSet[key]}SmoothScroll.destroy=cleanup;if(window.SmoothScrollOptions)SmoothScroll(window.SmoothScrollOptions);if(typeof define==="function"&&define.amd)define(function(){return SmoothScroll});else if("object"==typeof exports)module.exports=SmoothScroll;else window.SmoothScroll=SmoothScroll})();