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