function numRoll(){$.fn.countTo=function(options){options=options||{};return $(this).each(function(){var settings=$.extend({},$.fn.countTo.defaults,{from:$(this).data("from"),to:$(this).data("to"),speed:$(this).data("speed"),refreshInterval:$(this).data("refresh-interval"),decimals:$(this).data("decimals")},options);var loops=Math.ceil(settings.speed/settings.refreshInterval),increment=(settings.to-settings.from)/loops;var self=this,$self=$(this),loopCount=0,value=settings.from,data=$self.data("countTo")||{};$self.data("countTo",data);if(data.interval){clearInterval(data.interval)}data.interval=setInterval(updateTimer,settings.refreshInterval);render(value);function updateTimer(){value+=increment;loopCount++;render(value);if(typeof(settings.onUpdate)=="function"){settings.onUpdate.call(self,value)}if(loopCount>=loops){$self.removeData("countTo");clearInterval(data.interval);value=settings.to;if(typeof(settings.onComplete)=="function"){settings.onComplete.call(self,value)}}}function render(value){var formattedValue=settings.formatter.call(self,value,settings);$self.html(formattedValue)}})};$.fn.countTo.defaults={from:0,to:0,speed:1000,refreshInterval:100,decimals:0,formatter:formatter,onUpdate:null,onComplete:null};function formatter(value,settings){return value.toFixed(settings.decimals)}$(".timer").data("countToOptions",{formatter:function(value,options){return value.toFixed(options.decimals).replace(/\B(?=(?:\d{3})+(?!\d))/g,",")}});$(".timer").each(count);function count(options){var $this=$(this);options=$.extend({},options||{},$this.data("countToOptions")||{});$this.countTo(options)}}var flag=false;var scroll=$(".timer").offset().top-window.innerHeight;$(window).scroll(function(){var height=$(window).scrollTop();if(height>=scroll&&false===flag){flag=true;numRoll()}if(height<scroll){flag=false}});