var bPlay = 0;
		var nInterVal = 50;
		var nCurTop = 0;
		var nArchor = 0;
		var nSpeed = 10;
		var nBtnDown = -1;
		var bScrollDown = false;
		var noSleep = null;
		var timer = null;
		var nTouchTime = 0;
		
		
		function playReader(){
			if (bScrollDown == false){
				/*ga('send', 'event', 'reader', 'playReader', '');*/
				bScrollDown = true;
			}		
			
			if (bPlay == 0)	{
				bPlay = 1;
				noSleep = new NoSleep();
				noSleep.enable();
				$("#player").attr("class", "play-button pause-icon");
				if (timer != null)
					clearInterval(timer);				
				timer = window.setInterval(autoSchroll, nInterVal);
			}
			else {
				bPlay = 0;
				if (noSleep != null)
					noSleep.disable();
				$("#player").attr("class", "play-button play-icon");
				$('#prevchapt').show(100);
				$('#nextchapt').show(100);
				$('.btndown:eq(0)').show(100);
				$('.btndown:eq(1)').show(100);	
				if (timer != null)
					clearInterval(timer);
			}
			return false;
		}
		
		function updateSpeed(nValue){
			nSpeed = nValue;
			if (nSpeed > 20)
				nSpeed = 20;
					
			if (nSpeed < 1)
				nSpeed = 1;		
					
			$.cookie("nSpeed", nSpeed, { expires:expiredate, path: '/' });
			$("#playspeed").val(nSpeed);
			var nInterVal = 200 - nSpeed * 10;
			
			if (timer != null)
				clearInterval(timer);
			
			timer = window.setInterval(autoSchroll, nInterVal);
			return false;			
		} 
		
		function schrollDown(nValue){
			if (bScrollDown == false){
				/*ga('send', 'event', 'reader', 'schrollDown', '');*/
				bScrollDown = true;
			}
			
			var nY = $('body').scrollTop();
			if (nY == 0){
				nY = $('html').scrollTop();
			}
			
			$.smoothScroll({
				offset: nY + screen.height * 3 / 5,
				easing: 'swing',
				speed: 1200,
				afterScroll: function() {
					var nY = $('body').scrollTop();
					if (nY == 0){
						nY = $('html').scrollTop();
					}			
					nArchor = nY;
					nCurTop = nY;
					nBtnDown = -1;				
				}
			});			

			nBtnDown = nValue;
			
			return false;
		}
		
		function autoSchroll(){
			if (bPlay == 0 || $(window).focus() == false)
				return;
			
			var d = new Date();
			if (d.getTime() - nTouchTime < 1000)
				return;
				
			var nY = $('body').scrollTop();
			if (nY != 0)
				$('body').scrollTop(nY + 1);
			else{
				nY = $('html').scrollTop();
			}
			
			$('body').scrollTop(nY + 1);
			$('html').scrollTop(nY + 1);
		};
		
		$(window).scroll(function() {
			var nY = $('body').scrollTop();
			if (nY == 0){
				nY = $('html').scrollTop();
			}
			
			if (nY < nArchor - 2){
				nCurTop = nY;
				$('#player').show(100);
				$('#prevchapt').show(100);
				$('#nextchapt').show(100);
				$('.btndown:eq(0)').show(100);
				$('.btndown:eq(1)').show(100);
			}
			
			if (nY - nCurTop >= 100){
				if (bPlay == 0)
					$('#player').hide(100);
				$('#prevchapt').hide(100);
				$('#nextchapt').hide(100);
				if (nY > 150){
					if (nBtnDown != 0)
						$('.btndown:eq(0)').hide(100);
					if (nBtnDown != 1)
						$('.btndown:eq(1)').hide(100);
				}
				nCurTop = nY;
			}

			nArchor = nY;
			
			if ((window.innerHeight + window.scrollY) >= document.body.offsetHeight) {
				if (noSleep != null){
					noSleep.disable();
				}
			}			
		});	
		
		document.body.addEventListener('touchstart', function(e){
			if (bPlay == 0)
				return;		
			var d = new Date();
			nTouchTime = d.getTime();
		}, false)