!function(){"use strict";function a(d){if(!d)throw new Error("No options passed to Waypoint constructor");if(!d.element)throw new Error("No element option passed to Waypoint constructor");if(!d.handler)throw new Error("No handler option passed to Waypoint constructor");this.key="waypoint-"+b,this.options=a.Adapter.extend({},a.defaults,d),this.element=this.options.element,this.adapter=new a.Adapter(this.element),this.callback=d.handler,this.axis=this.options.horizontal?"horizontal":"vertical",this.enabled=this.options.enabled,this.triggerPoint=null,this.group=a.Group.findOrCreate({name:this.options.group,axis:this.axis}),this.context=a.Context.findOrCreateByElement(this.options.context),a.offsetAliases[this.options.offset]&&(this.options.offset=a.offsetAliases[this.options.offset]),this.group.add(this),this.context.add(this),c[this.key]=this,b+=1}var b=0,c={};a.prototype.queueTrigger=function(a){this.group.queueTrigger(this,a)},a.prototype.trigger=function(a){this.enabled&&this.callback&&this.callback.apply(this,a)},a.prototype.destroy=function(){this.context.remove(this),this.group.remove(this),delete c[this.key]},a.prototype.disable=function(){return this.enabled=!1,this},a.prototype.enable=function(){return this.context.refresh(),this.enabled=!0,this},a.prototype.next=function(){return this.group.next(this)},a.prototype.previous=function(){return this.group.previous(this)},a.invokeAll=function(a){var b=[];for(var d in c)b.push(c[d]);for(var e=0,f=b.length;e<f;e++)b[e][a]()},a.destroyAll=function(){a.invokeAll("destroy")},a.disableAll=function(){a.invokeAll("disable")},a.enableAll=function(){a.Context.refreshAll();for(var b in c)c[b].enabled=!0;return this},a.refreshAll=function(){a.Context.refreshAll()},a.viewportHeight=function(){return window.innerHeight||document.documentElement.clientHeight},a.viewportWidth=function(){return document.documentElement.clientWidth},a.adapters=[],a.defaults={context:window,continuous:!0,enabled:!0,group:"default",horizontal:!1,offset:0},a.offsetAliases={"bottom-in-view":function(){return this.context.innerHeight()-this.adapter.outerHeight()},"right-in-view":function(){return this.context.innerWidth()-this.adapter.outerWidth()}},window.Waypoint=a}(),function(){"use strict";function a(a){window.setTimeout(a,1e3/60)}function b(a){this.element=a,this.Adapter=e.Adapter,this.adapter=new this.Adapter(a),this.key="waypoint-context-"+c,this.didScroll=!1,this.didResize=!1,this.oldScroll={x:this.adapter.scrollLeft(),y:this.adapter.scrollTop()},this.waypoints={vertical:{},horizontal:{}},a.waypointContextKey=this.key,d[a.waypointContextKey]=this,c+=1,e.windowContext||(e.windowContext=!0,e.windowContext=new b(window)),this.createThrottledScrollHandler(),this.createThrottledResizeHandler()}var c=0,d={},e=window.Waypoint,f=window.onload;b.prototype.add=function(a){var b=a.options.horizontal?"horizontal":"vertical";this.waypoints[b][a.key]=a,this.refresh()},b.prototype.checkEmpty=function(){var a=this.Adapter.isEmptyObject(this.waypoints.horizontal),b=this.Adapter.isEmptyObject(this.waypoints.vertical),c=this.element==this.element.window;a&&b&&!c&&(this.adapter.off(".waypoints"),delete d[this.key])},b.prototype.createThrottledResizeHandler=function(){function a(){b.handleResize(),b.didResize=!1}var b=this;this.adapter.on("resize.waypoints",function(){b.didResize||(b.didResize=!0,e.requestAnimationFrame(a))})},b.prototype.createThrottledScrollHandler=function(){function a(){b.handleScroll(),b.didScroll=!1}var b=this;this.adapter.on("scroll.waypoints",function(){b.didScroll&&!e.isTouch||(b.didScroll=!0,e.requestAnimationFrame(a))})},b.prototype.handleResize=function(){e.Context.refreshAll()},b.prototype.handleScroll=function(){var a={},b={horizontal:{newScroll:this.adapter.scrollLeft(),oldScroll:this.oldScroll.x,forward:"right",backward:"left"},vertical:{newScroll:this.adapter.scrollTop(),oldScroll:this.oldScroll.y,forward:"down",backward:"up"}};for(var c in b){var d=b[c],e=d.newScroll>d.oldScroll,f=e?d.forward:d.backward;for(var g in this.waypoints[c]){var h=this.waypoints[c][g];if(null!==h.triggerPoint){var i=d.oldScroll<h.triggerPoint,j=d.newScroll>=h.triggerPoint,k=i&&j,l=!i&&!j;(k||l)&&(h.queueTrigger(f),a[h.group.id]=h.group)}}}for(var m in a)a[m].flushTriggers();this.oldScroll={x:b.horizontal.newScroll,y:b.vertical.newScroll}},b.prototype.innerHeight=function(){return this.element==this.element.window?e.viewportHeight():this.adapter.innerHeight()},b.prototype.remove=function(a){delete this.waypoints[a.axis][a.key],this.checkEmpty()},b.prototype.innerWidth=function(){return this.element==this.element.window?e.viewportWidth():this.adapter.innerWidth()},b.prototype.destroy=function(){var a=[];for(var b in this.waypoints)for(var c in this.waypoints[b])a.push(this.waypoints[b][c]);for(var d=0,e=a.length;d<e;d++)a[d].destroy()},b.prototype.refresh=function(){var a,b=this.element==this.element.window,c=b?void 0:this.adapter.offset(),d={};this.handleScroll(),a={horizontal:{contextOffset:b?0:c.left,contextScroll:b?0:this.oldScroll.x,contextDimension:this.innerWidth(),oldScroll:this.oldScroll.x,forward:"right",backward:"left",offsetProp:"left"},vertical:{contextOffset:b?0:c.top,contextScroll:b?0:this.oldScroll.y,contextDimension:this.innerHeight(),oldScroll:this.oldScroll.y,forward:"down",backward:"up",offsetProp:"top"}};for(var f in a){var g=a[f];for(var h in this.waypoints[f]){var i,j,k,l,m,n=this.waypoints[f][h],o=n.options.offset,p=n.triggerPoint,q=0,r=null==p;n.element!==n.element.window&&(q=n.adapter.offset()[g.offsetProp]),"function"==typeof o?o=o.apply(n):"string"==typeof o&&(o=parseFloat(o),n.options.offset.indexOf("%")>-1&&(o=Math.ceil(g.contextDimension*o/100))),i=g.contextScroll-g.contextOffset,n.triggerPoint=Math.floor(q+i-o),j=p<g.oldScroll,k=n.triggerPoint>=g.oldScroll,l=j&&k,m=!j&&!k,!r&&l?(n.queueTrigger(g.backward),d[n.group.id]=n.group):!r&&m?(n.queueTrigger(g.forward),d[n.group.id]=n.group):r&&g.oldScroll>=n.triggerPoint&&(n.queueTrigger(g.forward),d[n.group.id]=n.group)}}return e.requestAnimationFrame(function(){for(var a in d)d[a].flushTriggers()}),this},b.findOrCreateByElement=function(a){return b.findByElement(a)||new b(a)},b.refreshAll=function(){for(var a in d)d[a].refresh()},b.findByElement=function(a){return d[a.waypointContextKey]},window.onload=function(){f&&f(),b.refreshAll()},e.requestAnimationFrame=function(b){(window.requestAnimationFrame||window.mozRequestAnimationFrame||window.webkitRequestAnimationFrame||a).call(window,b)},e.Context=b}(),function(){"use strict";function a(a,b){return a.triggerPoint-b.triggerPoint}function b(a,b){return b.triggerPoint-a.triggerPoint}function c(a){this.name=a.name,this.axis=a.axis,this.id=this.name+"-"+this.axis,this.waypoints=[],this.clearTriggerQueues(),d[this.axis][this.name]=this}var d={vertical:{},horizontal:{}},e=window.Waypoint;c.prototype.add=function(a){this.waypoints.push(a)},c.prototype.clearTriggerQueues=function(){this.triggerQueues={up:[],down:[],left:[],right:[]}},c.prototype.flushTriggers=function(){for(var c in this.triggerQueues){var d=this.triggerQueues[c],e="up"===c||"left"===c;d.sort(e?b:a);for(var f=0,g=d.length;f<g;f+=1){var h=d[f];(h.options.continuous||f===d.length-1)&&h.trigger([c])}}this.clearTriggerQueues()},c.prototype.next=function(b){this.waypoints.sort(a);var c=e.Adapter.inArray(b,this.waypoints);return c===this.waypoints.length-1?null:this.waypoints[c+1]},c.prototype.previous=function(b){this.waypoints.sort(a);var c=e.Adapter.inArray(b,this.waypoints);return c?this.waypoints[c-1]:null},c.prototype.queueTrigger=function(a,b){this.triggerQueues[b].push(a)},c.prototype.remove=function(a){var b=e.Adapter.inArray(a,this.waypoints);b>-1&&this.waypoints.splice(b,1)},c.prototype.first=function(){return this.waypoints[0]},c.prototype.last=function(){return this.waypoints[this.waypoints.length-1]},c.findOrCreate=function(a){return d[a.axis][a.name]||new c(a)},e.Group=c}(),function(){"use strict";function a(a){this.$element=b(a)}var b=window.jQuery,c=window.Waypoint;b.each(["innerHeight","innerWidth","off","offset","on","outerHeight","outerWidth","scrollLeft","scrollTop"],function(b,c){a.prototype[c]=function(){var a=Array.prototype.slice.call(arguments);return this.$element[c].apply(this.$element,a)}}),b.each(["extend","inArray","isEmptyObject"],function(c,d){a[d]=b[d]}),c.adapters.push({name:"jquery",Adapter:a}),c.Adapter=a}(),function(){"use strict";function a(a){return function(){var c=[],d=arguments[0];return"function"==typeof arguments[0]&&(d=a.extend({},arguments[1]),d.handler=arguments[0]),this.each(function(){var e=a.extend({},d,{element:this});"string"==typeof e.context&&(e.context=a(this).closest(e.context)[0]),c.push(new b(e))}),c}}var b=window.Waypoint;window.jQuery&&(window.jQuery.fn.waypoint=a(window.jQuery)),window.Zepto&&(window.Zepto.fn.waypoint=a(window.Zepto))}();