!function(a){a.fn.appear=function(f,c){var b=a.extend({data:void 0,one:!0,accX:0,accY:0},c);return this.each(function(){var j=a(this);if(j.appeared=!1,f){var i=a(window),d=function(){if(j.is(":visible")){var l=i.scrollLeft(),h=i.scrollTop(),x=j.offset(),w=x.left,u=x.top,z=b.accX,k=b.accY,q=j.height(),v=i.height(),m=j.width(),y=i.width();h<=u+q+k&&u<=h+v+k&&l<=w+m+z&&w<=l+y+z?j.appeared||j.trigger("appear",b.data):j.appeared=!1}else{j.appeared=!1}},g=function(){if(j.appeared=!0,b.one){i.unbind("scroll",d);var h=a.inArray(d,a.fn.appear.checks);0<=h&&a.fn.appear.checks.splice(h,1)}f.apply(this,arguments)};b.one?j.one("appear",b.data,g):j.bind("appear",b.data,g),i.scroll(d),a.fn.appear.checks.push(d),d()}else{j.trigger("appear",b.data)}})},a.extend(a.fn.appear,{checks:[],timeout:null,checkAll:function(){var b=a.fn.appear.checks.length;if(0<b){for(;b--;){a.fn.appear.checks[b]()}}},run:function(){a.fn.appear.timeout&&clearTimeout(a.fn.appear.timeout),a.fn.appear.timeout=setTimeout(a.fn.appear.checkAll,20)}}),a.each(["append","prepend","after","before","attr","removeAttr","addClass","removeClass","toggleClass","remove","css","show","hide"],function(c,b){var d=a.fn[b];d&&(a.fn[b]=function(){var f=d.apply(this,arguments);return a.fn.appear.run(),f})})}(jQuery);