https://www.laabeja.pe/wp-content/themes/bingo/assets/external/lib-smoothscroll.js?ver=v1.2.1

1/**
2 * SmoothScroll for websites v1.2.1
3 Licensed under the terms of the MIT license.
4 People involved
5 Balazs Galambosi (maintainer)
6 Michael Herf     (Pulse Algorithm)
7 */
8function ruby_smooth_scroll(){function e(){var e=!1;e&&u("keydown",r),H.keyboardSupport&&!e&&c("keydown",r)}function t(){if(document.body){var t=document.body,o=document.documentElement,n=window.innerHeight,r=t.scrollHeight;if(x=document.compatMode.indexOf("CSS")>=0?o:t,w=t,e(),k=!0,top!=self)b=!0;else if(r>n&&(t.offsetHeight<=n||o.offsetHeight<=n)){var a=!1,i=function(){a||o.scrollHeight==document.height||(a=!0,setTimeout(function(){o.style.height=document.height+"px",a=!1},500))};if(o.style.height="auto",setTimeout(i,10),x.offsetHeight<=n){var l=document.createElement("div");l.style.clear="both",t.appendChild(l)}}H.fixedBackground||v||(t.style.backgroundAttachment="scroll",o.style.backgroundAttachment="scroll")}}function o(e,t,o,n){if(n||(n=1e3),d(t,o),1!=H.accelerationMax){var r=+new Date,a=r-C;if(a<H.accelerationDelta){var i=(1+30/a)/2;i>1&&(i=Math.min(i,H.accelerationMax),t*=i,o*=i)}C=+new Date}if(M.push({x:t,y:o,lastX:0>t?.99:-.99,lastY:0>o?.99:-.99,start:+new Date}),!T){var l=e===document.body,c=function(){for(var r=+new Date,a=0,i=0,u=0;u<M.length;u++){var s=M[u],d=r-s.start,f=d>=H.animationTime,h=f?1:d/H.animationTime;H.pulseAlgorithm&&(h=p(h));var m=s.x*h-s.lastX>>0,w=s.y*h-s.lastY>>0;a+=m,i+=w,s.lastX+=m,s.lastY+=w,f&&(M.splice(u,1),u--)}l?window.scrollBy(a,i):(a&&(e.scrollLeft+=a),i&&(e.scrollTop+=i)),t||o||(M=[]),M.length?N(c,e,n/H.frameRate+1):T=!1};N(c,e,0),T=!0}}function n(e){k||t();var n=e.target,r=l(n);if(!r||e.defaultPrevented||s(w,"embed")||s(n,"embed")&&/\.pdf/i.test(n.src))return!0;var a=e.wheelDeltaX||0,i=e.wheelDeltaY||0;return a||i||(i=e.wheelDelta||0),!H.touchpadSupport&&f(i)?!0:(Math.abs(a)>1.2&&(a*=H.stepSize/120),Math.abs(i)>1.2&&(i*=H.stepSize/120),o(r,-a,-i),void e.preventDefault())}function r(e){var t=e.target,n=e.ctrlKey||e.altKey||e.metaKey||e.shiftKey&&e.keyCode!==D.spacebar;if(/input|textarea|select|embed/i.test(t.nodeName)||t.isContentEditable||e.defaultPrevented||n)return!0;if(s(t,"button")&&e.keyCode===D.spacebar)return!0;var r,a=0,i=0,c=l(w),u=c.clientHeight;switch(c==document.body&&(u=window.innerHeight),e.keyCode){case D.up:i=-H.arrowScroll;break;case D.down:i=H.arrowScroll;break;case D.spacebar:r=e.shiftKey?1:-1,i=-r*u*.9;break;case D.pageup:i=.9*-u;break;case D.pagedown:i=.9*u;break;case D.home:i=-c.scrollTop;break;case D.end:var d=c.scrollHeight-c.scrollTop-u;i=d>0?d+10:0;break;case D.left:a=-H.arrowScroll;break;case D.right:a=H.arrowScroll;break;default:return!0}o(c,a,i),e.preventDefault()}function a(e){w=e.target}function i(e,t){for(var o=e.length;o--;)E[A(e[o])]=t;return t}function l(e){var t=[],o=x.scrollHeight;do{var n=E[A(e)];if(n)return i(t,n);if(t.push(e),o===e.scrollHeight){if(!b||x.clientHeight+10<o)return i(t,document.body)}else if(e.clientHeight+10<e.scrollHeight&&(overflow=getComputedStyle(e,"").getPropertyValue("overflow-y"),"scroll"===overflow||"auto"===overflow))return i(t,e)}while(e=e.parentNode)}function c(e,t,o){window.addEventListener(e,t,o||!1)}function u(e,t,o){window.removeEventListener(e,t,o||!1)}function s(e,t){return(e.nodeName||"").toLowerCase()===t.toLowerCase()}function d(e,t){e=e>0?1:-1,t=t>0?1:-1,(y.x!==e||y.y!==t)&&(y.x=e,y.y=t,M=[],C=0)}function f(e){if(e){e=Math.abs(e),S.push(e),S.shift(),clearTimeout(z);var t=h(S[0],120)&&h(S[1],120)&&h(S[2],120);return!t}}function h(e,t){return Math.floor(e/t)==e/t}function m(e){var t,o,n;return e*=H.pulseScale,1>e?t=e-(1-Math.exp(-e)):(o=Math.exp(-1),e-=1,n=1-Math.exp(-e),t=o+n*(1-o)),t*H.pulseNormalize}function p(e){return e>=1?1:0>=e?0:(1==H.pulseNormalize&&(H.pulseNormalize/=m(1)),m(e))}var w,g={frameRate:150,animationTime:600,stepSize:120,pulseAlgorithm:!0,pulseScale:8,pulseNormalize:1,accelerationDelta:20,accelerationMax:1,keyboardSupport:!0,arrowScroll:50,touchpadSupport:!0,fixedBackground:!0,excluded:""},v=!1,b=!1,y={x:0,y:0},k=!1,x=document.documentElement,S=[120,120,120],D={left:37,up:38,right:39,down:40,spacebar:32,pageup:33,pagedown:34,end:35,home:36},H=g,M=[],T=!1,C=+new Date,E={};setInterval(function(){E={}},1e4);var z,A=function(){var e=0;return function(t){return t.uniqueID||(t.uniqueID=e++)}}(),N=function(){return window.requestAnimationFrame||window.webkitRequestAnimationFrame||function(e,t,o){window.setTimeout(e,o||1e3/60)}}(),K=/chrome/i.test(window.navigator.userAgent),L=null;"onwheel"in document.createElement("div")?L="wheel":"onmousewheel"in document.createElement("div")&&(L="mousewheel"),L&&K&&(c(L,n),c("mousedown",a),c("load",t))}