https://www.belugacdn.com/blog/wp-content/themes/beluga/js/sticky_sidebar.min.js

1/*!
2 * Theia Sticky Sidebar v1.4.0
3 * https://github.com/WeCodePixels/theia-sticky-sidebar
4 *
5 * Glues your website's sidebars, making them permanently visible while scrolling.
6 *
7 * Copyright 2013-2016 WeCodePixels and other contributors
8 * Released under the MIT license
9 */
10!function(i){i.fn.theiaStickySidebar=function(t){function o(t,o){return!0===t.initialized||!(i("body").width()<t.minWidth)&&(e(t,o),!0)}function e(t,o){t.initialized=!0,i("head").append(i('<style>.theiaStickySidebar:after {content: ""; display: table; clear: both;}</style>')),o.each(function(){function o(){a.fixedScrollTop=0,a.sidebar.css({"min-height":"1px"}),a.stickySidebar.css({position:"static",width:""})}function e(t){var o=t.height();return t.children().each(function(){o=Math.max(o,i(this).height())}),o}var a={};if(a.sidebar=i(this),a.options=t||{},a.container=i(a.options.containerSelector),0==a.container.length&&(a.container=a.sidebar.parent()),a.sidebar.parents().css("-webkit-transform","none"),a.sidebar.css({position:"relative",overflow:"visible","-webkit-box-sizing":"border-box","-moz-box-sizing":"border-box","box-sizing":"border-box"}),a.stickySidebar=a.sidebar.find(".theiaStickySidebar"),0==a.stickySidebar.length){var n=/(?:text|application)\/(?:x-)?(?:javascript|ecmascript)/i;a.sidebar.find("script").filter(function(i,t){return 0===t.type.length||t.type.match(n)}).remove(),a.stickySidebar=i("<div>").addClass("theiaStickySidebar").append(a.sidebar.children()),a.sidebar.append(a.stickySidebar)}a.marginTop=parseInt(a.sidebar.css("margin-top")),a.marginBottom=parseInt(a.sidebar.css("margin-bottom")),a.paddingTop=parseInt(a.sidebar.css("padding-top")),a.paddingBottom=parseInt(a.sidebar.css("padding-bottom"));var d=a.stickySidebar.offset().top,s=a.stickySidebar.outerHeight();a.stickySidebar.css("padding-top",1),a.stickySidebar.css("padding-bottom",1),d-=a.stickySidebar.offset().top,s=a.stickySidebar.outerHeight()-s-d,0==d?(a.stickySidebar.css("padding-top",0),a.stickySidebarPaddingTop=0):a.stickySidebarPaddingTop=1,0==s?(a.stickySidebar.css("padding-bottom",0),a.stickySidebarPaddingBottom=0):a.stickySidebarPaddingBottom=1,a.previousScrollTop=null,a.fixedScrollTop=0,o(),a.onScroll=function(a){if(a.stickySidebar.is(":visible"))if(i("body").width()<a.options.minWidth)o();else if(a.options.disableOnResponsiveLayouts&&a.sidebar.outerWidth("none"==a.sidebar.css("float"))+50>a.container.width())o();else{var n=i(document).scrollTop(),d="static";if(n>=a.container.offset().top+(a.paddingTop+a.marginTop-a.options.additionalMarginTop)){var s,r=a.paddingTop+a.marginTop+t.additionalMarginTop,c=a.paddingBottom+a.marginBottom+t.additionalMarginBottom,p=a.container.offset().top,b=a.container.offset().top+e(a.container),l=0+t.additionalMarginTop;s=a.stickySidebar.outerHeight()+r+c<i(window).height()?l+a.stickySidebar.outerHeight():i(window).height()-a.marginBottom-a.paddingBottom-t.additionalMarginBottom;var g=p-n+a.paddingTop+a.marginTop,h=b-n-a.paddingBottom-a.marginBottom,f=a.stickySidebar.offset().top-n,S=a.previousScrollTop-n;"fixed"==a.stickySidebar.css("position")&&"modern"==a.options.sidebarBehavior&&(f+=S),"stick-to-top"==a.options.sidebarBehavior&&(f=t.additionalMarginTop),"stick-to-bottom"==a.options.sidebarBehavior&&(f=s-a.stickySidebar.outerHeight()),f=S>0?Math.min(f,l):Math.max(f,s-a.stickySidebar.outerHeight()),f=Math.max(f,g),f=Math.min(f,h-a.stickySidebar.outerHeight());var u=a.container.height()==a.stickySidebar.outerHeight();d=(u||f!=l)&&(u||f!=s-a.stickySidebar.outerHeight())?n+f-a.sidebar.offset().top-a.paddingTop<=t.additionalMarginTop?"static":"absolute":"fixed"}if("fixed"==d)a.stickySidebar.css({position:"fixed",width:a.sidebar.width(),top:f,left:a.sidebar.offset().left+parseInt(a.sidebar.css("padding-left"))});else if("absolute"==d){var m={};"absolute"!=a.stickySidebar.css("position")&&(m.position="absolute",m.top=n+f-a.sidebar.offset().top-a.stickySidebarPaddingTop-a.stickySidebarPaddingBottom),m.width=a.sidebar.width(),m.left="",a.stickySidebar.css(m)}else"static"==d&&o();"static"!=d&&1==a.options.updateSidebarHeight&&a.sidebar.css({"min-height":a.stickySidebar.outerHeight()+a.stickySidebar.offset().top-a.sidebar.offset().top+a.paddingBottom}),a.previousScrollTop=n}},a.onScroll(a),i(document).scroll(function(i){return function(){i.onScroll(i)}}(a)),i(window).resize(function(i){return function(){i.stickySidebar.css({position:"static"}),i.onScroll(i)}}(a))})}var a={containerSelector:"",additionalMarginTop:0,additionalMarginBottom:0,updateSidebarHeight:!0,minWidth:0,disableOnResponsiveLayouts:!0,sidebarBehavior:"modern"};(t=i.extend(a,t)).additionalMarginTop=parseInt(t.additionalMarginTop)||0,t.additionalMarginBottom=parseInt(t.additionalMarginBottom)||

100,function(t,e){o(t,e)||(console.log("TST: Body width smaller than options.minWidth. Init is delayed."),i(document).scroll(function(t,e){return function(a){o(t,e)&&i(this).unbind(a)}}(t,e)),i(window).resize(function(t,e){return function(a){o(t,e)&&i(this).unbind(a)}}(t,e)))}(t,this)}}(jQuery);