(function(){var t=[].indexOf||function(t){for(var e=0,n=this.length;e<n;e++){if(e in this&&this[e]===t)return e}return-1},e=[].slice;(function(t,e){if(typeof define==="function"&&define.amd){return define("waypoints",["jquery"],function(n){return e(n,t)})}else{return e(t.jQuery,t)}})(this,function(n,r){var i,o,l,s,f,u,c,a,h,d,p,y,v,w,g,m;i=n(r);a=t.call(r,"ontouchstart")>=0;s={horizontal:{},vertical:{}};f=1;c={};u="waypoints-context-id";p="resize.waypoints";y="scroll.waypoints";v=1;w="waypoints-waypoint-ids";g="waypoint";m="waypoints";o=function(){function t(t){var e=this;this.$element=t;this.element=t[0];this.didResize=!1;this.didScroll=!1;this.id="context"+f++;this.oldScroll={x:t.scrollLeft(),y:t.scrollTop()};this.waypoints={horizontal:{},vertical:{}};this.element[u]=this.id;c[this.id]=this;t.bind(y,function(){var t;if(!(e.didScroll||a)){e.didScroll=!0;t=function(){e.doScroll();return e.didScroll=!1};return r.setTimeout(t,n[m].settings.scrollThrottle)}});t.bind(p,function(){var 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this.oldScroll={x:t.horizontal.newScroll,y:t.vertical.newScroll}};t.prototype.refresh=function(){var t,e,r,i=this;r=n.isWindow(this.element);e=this.$element.offset();this.doScroll();t={horizontal:{contextOffset:r?0:e.left,contextScroll:r?0:this.oldScroll.x,contextDimension:this.$element.width(),oldScroll:this.oldScroll.x,forward:"right",backward:"left",offsetProp:"left"},vertical:{contextOffset:r?0:e.top,contextScroll:r?0:this.oldScroll.y,contextDimension:r?n[m]("viewportHeight"):this.$element.height(),oldScroll:this.oldScroll.y,forward:"down",backward:"up",offsetProp:"top"}};return n.each(t,function(t,e){return n.each(i.waypoints[t],function(t,r){var i,o,l,s,f;i=r.options.offset;l=r.offset;o=n.isWindow(r.element)?0:r.$element.offset()[e.offsetProp];if(n.isFunction(i)){i=i.apply(r.element)}else if(typeof 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r;if(e==null){e={}}if((r=e.handler)==null){e.handler=t}this.each(function(){var t,r,i,s;t=n(this);i=(s=e.context)!=null?s:n.fn[g].defaults.context;if(!n.isWindow(i)){i=t.closest(i)}i=n(i);r=c[i[0][u]];if(!r){r=new o(i)}return new l(t,r,e)});n[m]("refresh");return this},disable:function(){return d._invoke.call(this,"disable")},enable:function(){return d._invoke.call(this,"enable")},destroy:function(){return d._invoke.call(this,"destroy")},prev:function(t,e){return d._traverse.call(this,t,e,function(t,e,n){if(e>0){return t.push(n[e-1])}})},next:function(t,e){return d._traverse.call(this,t,e,function(t,e,n){if(e<n.length-1){return t.push(n[e+1])}})},_traverse:function(t,e,i){var o,l;if(t==null){t="vertical"}if(e==null){e=r}l=h.aggregate(e);o=[];this.each(function(){var e;e=n.inArray(this,l[t]);return i(o,e,l[t])});return this.pushStack(o)},_invoke:function(t){this.each(function(){var e;e=l.getWaypointsByElement(this);return n.each(e,function(e,n){n[t]();return!0})});return this}};n.fn[g]=function(){var t,r;r=arguments[0],t=2<=arguments.length?e.call(arguments,1):[];if(d[r]){return d[r].apply(this,t)}else if(n.isFunction(r)){return d.init.apply(this,arguments)}else if(n.isPlainObject(r)){return d.init.apply(this,[null,r])}else if(!r){return n.error("jQuery Waypoints needs a callback function or handler option.")}else{return n.error("The "+r+" method does not exist in jQuery Waypoints.")}};n.fn[g].defaults={context:r,continuous:!0,enabled:!0,horizontal:!1,offset:0,triggerOnce:!1};h={refresh:function(){return n.each(c,function(t,e){return e.refresh()})},viewportHeight:function(){var t;return(t=r.innerHeight)!=null?t:i.height()},aggregate:function(t){var e,r,i;e=s;if(t){e=(i=c[n(t)[0][u]])!=null?i.waypoints:void 0}if(!e){return[]}r={horizontal:[],vertical:[]};n.each(r,function(t,i){n.each(e[t],function(t,e){return i.push(e)});i.sort(function(t,e){return t.offset-e.offset});r[t]=n.map(i,function(t){return t.element});return r[t]=n.unique(r[t])});return r},above:function(t){if(t==null){t=r}return h._filter(t,"vertical",function(t,e){return e.offset<=t.oldScroll.y})},below:function(t){if(t==null){t=r}return h._filter(t,"vertical",function(t,e){return e.offset>t.oldScroll.y})},left:function(t){if(t==null){t=r}return h._filter(t,"horizontal",function(t,e){return e.offset<=t.oldScroll.x})},right:function(t){if(t==null){t=r}return h._filter(t,"horizontal",function(t,e){return e.offset>t.oldScroll.x})},enable:function(){return h._invoke("enable")},disable:function(){return h._invoke("disable")},destroy:function(){return h._invoke("destroy")},extendFn:function(t,e){return d[t]=e},_invoke:function(t){var e;e=n.extend({},s.vertical,s.horizontal);return n.each(e,function(e,n){n[t]();return!0})},_filter:function(t,e,r){var i,o;i=c[n(t)[0][u]];if(!i){return[]}o=[];n.each(i.waypoints[e],function(t,e){if(r(i,e)){return o.push(e)}});o.sort(function(t,e){return t.offset-e.offset});return n.map(o,function(t){return t.element})}};n[m]=function(){var t,n;n=arguments[0],t=2<=arguments.length?e.call(arguments,1):[];if(h[n]){return h[n].apply(null,t)}else{return h.aggregate.call(null,n)}};n[m].settings={resizeThrottle:100,scrollThrottle:30};return i.load(function(){return n[m]("refresh")})})}).call(this)