(function(a){a.fn.lazyload=function(b){var c={threshold:0,failure_limit:0,event:"scroll",effect:"show",container:window,skip_invisible:true};if(b){if(null!==b.failurelimit){b.failure_limit=b.failurelimit;delete b.failurelimit}a.extend(c,b)}var d=this;if(0==c.event.indexOf("scroll")){a(c.container).bind(c.event,function(b){var e=0;d.each(function(){if(c.skip_invisible&&!a(this).is(":visible"))return;if(a.abovethetop(this,c)||a.leftofbegin(this,c)){}else if(!a.belowthefold(this,c)&&!a.rightoffold(this,c)){a(this).trigger("appear")}else{if(++e>c.failure_limit){return false}}});var f=a.grep(d,function(a){return!a.loaded});d=a(f)})}this.each(function(){var b=this;b.loaded=false;a(b).one("appear",function(){if(!this.loaded){a("<img />").bind("load",function(){a(b).hide().attr("src",a(b).data("original"))[c.effect](c.effectspeed);b.loaded=true}).attr("src",a(b).data("original"))}});if(0!=c.event.indexOf("scroll")){a(b).bind(c.event,function(c){if(!b.loaded){a(b).trigger("appear")}})}});a(c.container).trigger(c.event);return this};a.belowthefold=function(b,c){if(c.container===undefined||c.container===window){var d=a(window).height()+a(window).scrollTop()}else{var d=a(c.container).offset().top+a(c.container).height()}return d<=a(b).offset().top-c.threshold};a.rightoffold=function(b,c){if(c.container===undefined||c.container===window){var d=a(window).width()+a(window).scrollLeft()}else{var d=a(c.container).offset().left+a(c.container).width()}return d<=a(b).offset().left-c.threshold};a.abovethetop=function(b,c){if(c.container===undefined||c.container===window){var d=a(window).scrollTop()}else{var d=a(c.container).offset().top}return d>=a(b).offset().top+c.threshold+a(b).height()};a.leftofbegin=function(b,c){if(c.container===undefined||c.container===window){var d=a(window).scrollLeft()}else{var d=a(c.container).offset().left}return d>=a(b).offset().left+c.threshold+a(b).width()};a.extend(a.expr[":"],{"below-the-fold":function(b){return a.belowthefold(b,{threshold:0,container:window})},"above-the-fold":function(b){return!a.belowthefold(b,{threshold:0,container:window})},"right-of-fold":function(b){return a.rightoffold(b,{threshold:0,container:window})},"left-of-fold":function(b){return!a.rightoffold(b,{threshold:0,container:window})}})})(jQuery)