(function($,wp,wps,window,undefined){'$:nomunge';var $w=$(window),waypoints=[],oldScroll=-99999,didScroll=false,didResize=false,eventName='waypoint.reached',methods={init:function(f,options){this.each(function(){var $this=$(this),ndx=waypointIndex($this),base=ndx<0?$.fn[wp].defaults:waypoints[ndx].options,opts=$.extend({},base,options);opts.offset=opts.offset==="bottom-in-view"?function(){return $[wps]('viewportHeight')-$(this).outerHeight();}:opts.offset;if(ndx<0){waypoints.push({element:$this,offset:$this.offset().top,options:opts});}
else{waypoints[ndx].options=opts;}
f&&$this.bind(eventName,f);});$[wps]('refresh');return this;},remove:function(){return this.each(function(){var ndx=waypointIndex($(this));if(ndx>=0){waypoints.splice(ndx,1);}});},destroy:function(){return this.unbind(eventName)[wp]('remove');}};function waypointIndex(el){var i=waypoints.length-1;while(i>=0&&waypoints[i].element[0]!==el[0]){i-=1;}
return i;}
function triggerWaypoint(way,dir){way.element.trigger(eventName,dir)
if(way.options.triggerOnce){way.element[wp]('destroy');}}
function doScroll(){var newScroll=$w.scrollTop(),isDown=newScroll>oldScroll,pointsHit=$.grep(waypoints,function(el,i){return isDown?(el.offset>oldScroll&&el.offset<=newScroll):(el.offset<=oldScroll&&el.offset>newScroll);});if(!oldScroll||!newScroll){$[wps]('refresh');}
oldScroll=newScroll;if(!pointsHit.length)return;if($[wps].settings.continuous){$.each(isDown?pointsHit:pointsHit.reverse(),function(i,point){triggerWaypoint(point,[isDown?'down':'up']);});}
else{triggerWaypoint(pointsHit[isDown?pointsHit.length-1:0],[isDown?'down':'up']);}}
$.fn[wp]=function(method){if(methods[method]){return methods[method].apply(this,Array.prototype.slice.call(arguments,1));}
else if(typeof method==="function"||!method){return methods.init.apply(this,arguments);}
else if(typeof method==="object"){return methods.init.apply(this,[null,method]);}
else{$.error('Method '+method+' does not exist on jQuery'+wp);}};$.fn[wp].defaults={offset:0,triggerOnce:false};var jQMethods={refresh:function(){$.each(waypoints,function(i,o){var adjustment=0,oldOffset=o.offset;if(typeof o.options.offset==="function"){adjustment=o.options.offset.apply(o.element);}
else if(typeof o.options.offset==="string"){var amount=parseFloat(o.options.offset),adjustment=o.options.offset.indexOf("%")?Math.ceil($[wps]('viewportHeight')*(amount/100)):amount;}
else{adjustment=o.options.offset;}
o.offset=o.element.offset().top-adjustment;if(oldScroll>oldOffset&&oldScroll<=o.offset){triggerWaypoint(o,['up']);}
else if(oldScroll<oldOffset&&oldScroll>=o.offset){triggerWaypoint(o,['down']);}});waypoints.sort(function(a,b){return a.offset-b.offset;});},viewportHeight:function(){return(window.innerHeight?window.innerHeight:$w.height());},aggregate:function(){var points=$();$.each(waypoints,function(i,e){points=points.add(e.element);});return points;}};$[wps]=function(method){if(jQMethods[method]){return jQMethods[method].apply(this);}
else{return jQMethods["aggregate"]();}};$[wps].settings={continuous:true,resizeThrottle:200,scrollThrottle:100};$w.scroll(function(){if(!didScroll){didScroll=true;window.setTimeout(function(){doScroll();didScroll=false;},$[wps].settings.scrollThrottle);}}).resize(function(){if(!didResize){didResize=true;window.setTimeout(function(){$[wps]('refresh');didResize=false;},$[wps].settings.resizeThrottle);}}).load(function(){$[wps]('refresh');doScroll();});})(jQuery,'waypoint','waypoints',this);