text: /*! iScroll v5.1.1 ~ (c) 2008-2014 Matteo Spinelli ~ http://cubiq.org/license */
  (function (window, document, Math) {
  var rAF = window.requestAnimationFrame	||
  	window.webkitRequestAnimationFrame	||
  	window.mozRequestAnimationFrame		||
  	window.oRequestAnimationFrame		||
  	window.msRequestAnimationFrame		||
  	function (callback) { window.setTimeout(callback, 1000 / 60); };
  
  var utils = (function () {
  	var me = {};
  
  	var _elementStyle = document.createElement('div').style;
  	var _vendor = (function () {
  		var vendors = ['t', 'webkitT', 'MozT', 'msT', 'OT'],
  			transform,
  			i = 0,
  			l = vendors.length;
  
  		for ( ; i < l; i++ ) {
  			transform = vendors[i] + 'ransform';
  			if ( transform in _elementStyle ) return vendors[i].substr(0, vendors[i].length-1);
  		}
  
  		return false;
  	})();
  
  	function _prefixStyle (style) {
  		if ( _vendor === false ) return false;
  		if ( _vendor === '' ) return style;
  		return _vendor + style.charAt(0).toUpperCase() + style.substr(1);
  	}
  
  	me.getTime = Date.now || function getTime () { return new Date().getTime(); };
  
  	me.extend = function (target, obj) {
  		for ( var i in obj ) {
  			target[i] = obj[i];
  		}
  	};
  
  	me.addEvent = function (el, type, fn, capture) {
  		el.addEventListener(type, fn, !!capture);
  	};
  
  	me.removeEvent = function (el, type, fn, capture) {
  		el.removeEventListener(type, fn, !!capture);
  	};
  
  	me.momentum = function (current, start, time, lowerMargin, wrapperSize, deceleration) {
  		var distance = current - start,
  			speed = Math.abs(distance) / time,
  			destination,
  			duration;
  
  		deceleration = deceleration === undefined ? 0.0006 : deceleration;
  
  		destination = current + ( speed * speed ) / ( 2 * deceleration ) * ( distance < 0 ? -1 : 1 );
  		duration = speed / deceleration;
  
  		if ( destination < lowerMargin ) {
  			destination = wrapperSize ? lowerMargin - ( wrapperSize / 2.5 * ( speed / 8 ) ) : lowerMargin;
  			distance = Math.abs(destination - current);
  			duration = distance / speed;
  		} else if ( destination > 0 ) {
  			destination = wrapperSize ? wrapperSize / 2.5 * ( speed / 8 ) : 0;
  			distance = Math.abs(current) + destination;
  			duration = distance / speed;
  		}
  
  		return {
  			destination: Math.round(destination),
  			duration: duration
  		};
  	};
  
  	var _transform = _prefixStyle('transform');
  
  	me.extend(me, {
  		hasTransform: _transform !== false,
  		hasPerspective: _prefixStyle('perspective') in _elementStyle,
  		hasTouch: 'ontouchstart' in window,
  		hasPointer: navigator.msPointerEnabled,
  		hasTransition: _prefixStyle('transition') in _elementStyle
  	});
  
  	// This should find all Android browsers lower than build 535.19 (both stock browser and webview)
  	me.isBadAndroid = /Android /.test(window.navigator.appVersion) && !(/Chrome\/\d/.test(window.navigator.appVersion));
  
  	me.extend(me.style = {}, {
  		transform: _transform,
  		transitionTimingFunction: _prefixStyle('transitionTimingFunction'),
  		transitionDuration: _prefixStyle('transitionDuration'),
  		transitionDelay: _prefixStyle('transitionDelay'),
  		transformOrigin: _prefixStyle('transformOrigin')
  	});
  
  	me.hasClass = function (e, c) {
  		var re = new RegExp("(^|\\s)" + c + "(\\s|$)");
  		return re.test(e.className);
  	};
  
  	me.addClass = function (e, c) {
  		if ( me.hasClass(e, c) ) {
  			return;
  		}
  
  		var newclass = e.className.split(' ');
  		newclass.push(c);
  		e.className = newclass.join(' ');
  	};
  
  	me.removeClass = function (e, c) {
  		if ( !me.hasClass(e, c) ) {
  			return;
  		}
  
  		var re = new RegExp("(^|\\s)" + c + "(\\s|$)", 'g');
  		e.className = e.className.replace(re, ' ');
  	};
  
  	me.offset = function (el) {
  		var left = -el.offsetLeft,
  			top = -el.offsetTop;
  
  		// jshint -W084
  		while (el = el.offsetParent) {
  			left -= el.offsetLeft;
  			top -= el.offsetTop;
  		}
  		// jshint +W084
  
  		return {
  			left: left,
  			top: top
  		};
  	};
  
  	me.preventDefaultException = function (el, exceptions) {
  		for ( var i in exceptions ) {
  			if ( exceptions[i].test(el[i]) ) {
  				return true;
  			}
  		}
  
  		return false;
  	};
  
  	me.extend(me.eventType = {}, {
  		touchstart: 1,
  		touchmove: 1,
  		touchend: 1,
  
  		mousedown: 2,
  		mousemove: 2,
  		mouseup: 2,
  
  		MSPointerDown: 3,
  		MSPointerMove: 3,
  		MSPointerUp: 3
  	});
  
  	me.extend(me.ease = {}, {
  		quadratic: {
  			style: 'cubic-bezier(0.25, 0.46, 0.45, 0.94)',
  			fn: function (k) {
  				return k * ( 2 - k );
  			}
  		},
  		circular: {
  			style: 'cubic-bezier(0.1, 0.57, 0.1, 1)',	// Not properly "circular" but this looks better, it should be (0.075, 0.82, 0.165, 1)
  			fn: function (k) {
  				return Math.sqrt( 1 - ( --k * k ) );
  			}
  		},
  		back: {
  			style: 'cubic-bezier(0.175, 0.885, 0.32, 1.275)',
  			fn: function (k) {
  				var b = 4;
  				return ( k = k - 1 ) * k * ( ( b + 1 ) * k + b ) + 1;
  			}
  		},
  		bounce: {
  			style: '',
  			fn: function (k) {
  				if ( ( k /= 1 ) < ( 1 / 2.75 ) ) {
  					return 7.5625 * k * k;
  				} else if ( k < ( 2 / 2.75 ) ) {
  					return 7.5625 * ( k -= ( 1.5 / 2.75 ) ) * k + 0.75;
  				} else if ( k < ( 2.5 / 2.75 ) ) {
  					return 7.5625 * ( k -= ( 2.25 / 2.75 ) ) * k + 0.9375;
  				} else {
  					return 7.5625 * ( k -= ( 2.625 / 2.75 ) ) * k + 0.984375;
  				}
  			}
  		},
  		elastic: {
  			style: '',
  			fn: function (k) {
  				var f = 0.22,
  					e = 0.4;
  
  				if ( k === 0 ) { return 0; }
  				if ( k == 1 ) { return 1; }
  
  				return ( e * Math.pow( 2, - 10 * k ) * Math.sin( ( k - f / 4 ) * ( 2 * Math.PI ) / f ) + 1 );
  			}
  		}
  	});
  
  	me.tap = function (e, eventName) {
  		var ev = document.createEvent('Event');
  		ev.initEvent(eventName, true, true);
  		ev.pageX = e.pageX;
  		ev.pageY = e.pageY;
  		e.target.dispatchEvent(ev);
  	};
  
  	me.click = function (e) {
  		var target = e.target,
  			ev;
  
  		if ( !(/(SELECT|INPUT|TEXTAREA)/i).test(target.tagName) ) {
  			ev = document.createEvent('MouseEvents');
  			ev.initMouseEvent('click', true, true, e.view, 1,
  				target.screenX, target.screenY, target.clientX, target.clientY,
  				e.ctrlKey, e.altKey, e.shiftKey, e.metaKey,
  				0, null);
  
  			ev._constructed = true;
  			target.dispatchEvent(ev);
  		}
  	};
  
  	return me;
  })();
  
  function IScroll (el, options) {
  	this.wrapper = typeof el == 'string' ? document.querySelector(el) : el;
  	this.scroller = this.wrapper.children[0];
  	this.scrollerStyle = this.scroller.style;		// cache style for better performance
  
  	this.options = {
  
  		mouseWheelSpeed: 20,
  
  		snapThreshold: 0.334,
  
  		infiniteUseTransform: true,
  		deceleration: 0.004,
  
  // INSERT POINT: OPTIONS 
  
  		startX: 0,
  		startY: 0,
  		scrollY: true,
  		directionLockThreshold: 5,
  		momentum: true,
  
  		bounce: true,
  		bounceTime: 600,
  		bounceEasing: '',
  
  		preventDefault: true,
  		preventDefaultException: { tagName: /^(INPUT|TEXTAREA|BUTTON|SELECT)$/ },
  
  		HWCompositing: true,
  		useTransition: true,
  		useTransform: true
  	};
  
  	for ( var i in options ) {
  		this.options[i] = options[i];
  	}
  
  	// Normalize options
  	this.translateZ = this.options.HWCompositing && utils.hasPerspective ? ' translateZ(0)' : '';
  
  	this.options.useTransition = utils.hasTransition && this.options.useTransition;
  	this.options.useTransform = utils.hasTransform && this.options.useTransform;
  
  	this.options.eventPassthrough = this.options.eventPassthrough === true ? 'vertical' : this.options.eventPassthrough;
  	this.options.preventDefault = !this.options.eventPassthrough && this.options.preventDefault;
  
  	// If you want eventPassthrough I have to lock one of the axes
  	this.options.scrollY = this.options.eventPassthrough == 'vertical' ? false : this.options.scrollY;
  	this.options.scrollX = this.options.eventPassthrough == 'horizontal' ? false : this.options.scrollX;
  
  	// With eventPassthrough we also need lockDirection mechanism
  	this.options.freeScroll = this.options.freeScroll && !this.options.eventPassthrough;
  	this.options.directionLockThreshold = this.options.eventPassthrough ? 0 : this.options.directionLockThreshold;
  
  	this.options.bounceEasing = typeof this.options.bounceEasing == 'string' ? utils.ease[this.options.bounceEasing] || utils.ease.circular : this.options.bounceEasing;
  
  	this.options.resizePolling = this.options.resizePolling === undefined ? 60 : this.options.resizePolling;
  
  	if ( this.options.tap === true ) {
  		this.options.tap = 'tap';
  	}
  
  	this.options.invertWheelDirection = this.options.invertWheelDirection ? -1 : 1;
  
  	if ( this.options.infiniteElements ) {
  		this.options.probeType = 3;
  	}
  	this.options.infiniteUseTransform = this.options.infiniteUseTransform && this.options.useTransform;
  
  	if ( this.options.probeType == 3 ) {
  		this.options.useTransition = false;	}
  
  // INSERT POINT: NORMALIZATION
  
  	// Some defaults	
  	this.x = 0;
  	this.y = 0;
  	this.directionX = 0;
  	this.directionY = 0;
  	this._events = {};
  
  // INSERT POINT: DEFAULTS
  
  	this._init();
  	this.refresh();
  
  	this.scrollTo(this.options.startX, this.options.startY);
  	this.enable();
  }
  
  IScroll.prototype = {
  	version: '5.1.1',
  
  	_init: function () {
  		this._initEvents();
  
  		if ( this.options.mouseWheel ) {
  			this._initWheel();
  		}
  
  		if ( this.options.snap ) {
  			this._initSnap();
  		}
  
  		if ( this.options.keyBindings ) {
  			this._initKeys();
  		}
  
  		if ( this.options.infiniteElements ) {
  			this._initInfinite();
  		}
  
  // INSERT POINT: _init
  
  	},
  
  	destroy: function () {
  		this._initEvents(true);
  
  		this._execEvent('destroy');
  	},
  
  	_transitionEnd: function (e) {
  		if ( e.target != this.scroller || !this.isInTransition ) {
  			return;
  		}
  
  		this._transitionTime();
  		if ( !this.resetPosition(this.options.bounceTime) ) {
  			this.isInTransition = false;
  			this._execEvent('scrollEnd');
  		}
  	},
  
  	_start: function (e) {
  		// React to left mouse button only
  		if ( utils.eventType[e.type] != 1 ) {
  			if ( e.button !== 0 ) {
  				return;
  			}
  		}
  
  		if ( !this.enabled || (this.initiated && utils.eventType[e.type] !== this.initiated) ) {
  			return;
  		}
  
  		if ( this.options.preventDefault && !utils.isBadAndroid && !utils.preventDefaultException(e.target, this.options.preventDefaultException) ) {
  			e.preventDefault();
  		}
  
  		var point = e.touches ? e.touches[0] : e,
  			pos;
  
  		this.initiated	= utils.eventType[e.type];
  		this.moved		= false;
  		this.distX		= 0;
  		this.distY		= 0;
  		this.directionX = 0;
  		this.directionY = 0;
  		this.directionLocked = 0;
  
  		this._transitionTime();
  
  		this.startTime = utils.getTime();
  
  		if ( this.options.useTransition && this.isInTransition ) {
  			this.isInTransition = false;
  			pos = this.getComputedPosition();
  			this._translate(Math.round(pos.x), Math.round(pos.y));
  			this._execEvent('scrollEnd');
  		} else if ( !this.options.useTransition && this.isAnimating ) {
  			this.isAnimating = false;
  			this._execEvent('scrollEnd');
  		}
  
  		this.startX    = this.x;
  		this.startY    = this.y;
  		this.absStartX = this.x;
  		this.absStartY = this.y;
  		this.pointX    = point.pageX;
  		this.pointY    = point.pageY;
  
  		this._execEvent('beforeScrollStart');
  	},
  
  	_move: function (e) {
  		if ( !this.enabled || utils.eventType[e.type] !== this.initiated ) {
  			return;
  		}
  
  		if ( this.options.preventDefault ) {	// increases performance on Android? TODO: check!
  			e.preventDefault();
  		}
  
  		var point		= e.touches ? e.touches[0] : e,
  			deltaX		= point.pageX - this.pointX,
  			deltaY		= point.pageY - this.pointY,
  			timestamp	= utils.getTime(),
  			newX, newY,
  			absDistX, absDistY;
  
  		this.pointX		= point.pageX;
  		this.pointY		= point.pageY;
  
  		this.distX		+= deltaX;
  		this.distY		+= deltaY;
  		absDistX		= Math.abs(this.distX);
  		absDistY		= Math.abs(this.distY);
  
  		// We need to move at least 10 pixels for the scrolling to initiate
  		if ( timestamp - this.endTime > 300 && (absDistX < 10 && absDistY < 10) ) {
  			return;
  		}
  
  		// If you are scrolling in one direction lock the other
  		if ( !this.directionLocked && !this.options.freeScroll ) {
  			if ( absDistX > absDistY + this.options.directionLockThreshold ) {
  				this.directionLocked = 'h';		// lock horizontally
  			} else if ( absDistY >= absDistX + this.options.directionLockThreshold ) {
  				this.directionLocked = 'v';		// lock vertically
  			} else {
  				this.directionLocked = 'n';		// no lock
  			}
  		}
  
  		if ( this.directionLocked == 'h' ) {
  			if ( this.options.eventPassthrough == 'vertical' ) {
  				e.preventDefault();
  			} else if ( this.options.eventPassthrough == 'horizontal' ) {
  				this.initiated = false;
  				return;
  			}
  
  			deltaY = 0;
  		} else if ( this.directionLocked == 'v' ) {
  			if ( this.options.eventPassthrough == 'horizontal' ) {
  				e.preventDefault();
  			} else if ( this.options.eventPassthrough == 'vertical' ) {
  				this.initiated = false;
  				return;
  			}
  
  			deltaX = 0;
  		}
  
  		deltaX = this.hasHorizontalScroll ? deltaX : 0;
  		deltaY = this.hasVerticalScroll ? deltaY : 0;
  
  		newX = this.x + deltaX;
  		newY = this.y + deltaY;
  
  		// Slow down if outside of the boundaries
  		if ( newX > 0 || newX < this.maxScrollX ) {
  			newX = this.options.bounce ? this.x + deltaX / 3 : newX > 0 ? 0 : this.maxScrollX;
  		}
  		if ( newY > 0 || newY < this.maxScrollY ) {
  			newY = this.options.bounce ? this.y + deltaY / 3 : newY > 0 ? 0 : this.maxScrollY;
  		}
  
  		this.directionX = deltaX > 0 ? -1 : deltaX < 0 ? 1 : 0;
  		this.directionY = deltaY > 0 ? -1 : deltaY < 0 ? 1 : 0;
  
  		if ( !this.moved ) {
  			this._execEvent('scrollStart');
  		}
  
  		this.moved = true;
  
  		this._translate(newX, newY);
  
  /* REPLACE START: _move */
  		if ( timestamp - this.startTime > 300 ) {
  			this.startTime = timestamp;
  			this.startX = this.x;
  			this.startY = this.y;
  
  			if ( this.options.probeType == 1 ) {
  				this._execEvent('scroll');
  			}
  		}
  
  		if ( this.options.probeType > 1 ) {
  			this._execEvent('scroll');
  		}
  /* REPLACE END: _move */
  
  	},
  
  	_end: function (e) {
  		if ( !this.enabled || utils.eventType[e.type] !== this.initiated ) {
  			return;
  		}
  
  		if ( this.options.preventDefault && !utils.preventDefaultException(e.target, this.options.preventDefaultException) ) {
  			e.preventDefault();
  		}
  
  		var point = e.changedTouches ? e.changedTouches[0] : e,
  			momentumX,
  			momentumY,
  			duration = utils.getTime() - this.startTime,
  			newX = Math.round(this.x),
  			newY = Math.round(this.y),
  			distanceX = Math.abs(newX - this.startX),
  			distanceY = Math.abs(newY - this.startY),
  			time = 0,
  			easing = '';
  
  		this.isInTransition = 0;
  		this.initiated = 0;
  		this.endTime = utils.getTime();
  
  		// reset if we are outside of the boundaries
  		if ( this.resetPosition(this.options.bounceTime) ) {
  			return;
  		}
  
  		this.scrollTo(newX, newY);	// ensures that the last position is rounded
  
  		// we scrolled less than 10 pixels
  		if ( !this.moved ) {
  			if ( this.options.tap ) {
  				utils.tap(e, this.options.tap);
  			}
  
  			if ( this.options.click ) {
  				utils.click(e);
  			}
  
  			this._execEvent('scrollCancel');
  			return;
  		}
  
  		if ( this._events.flick && duration < 200 && distanceX < 100 && distanceY < 100 ) {
  			this._execEvent('flick');
  			return;
  		}
  
  		// start momentum animation if needed
  		if ( this.options.momentum && duration < 300 ) {
  			momentumX = this.hasHorizontalScroll ? utils.momentum(this.x, this.startX, duration, this.maxScrollX, this.options.bounce ? this.wrapperWidth : 0, this.options.deceleration) : { destination: newX, duration: 0 };
  			momentumY = this.hasVerticalScroll ? utils.momentum(this.y, this.startY, duration, this.maxScrollY, this.options.bounce ? this.wrapperHeight : 0, this.options.deceleration) : { destination: newY, duration: 0 };
  			newX = momentumX.destination;
  			newY = momentumY.destination;
  			time = Math.max(momentumX.duration, momentumY.duration);
  			this.isInTransition = 1;
  		}
  
  
  		if ( this.options.snap ) {
  			var snap = this._nearestSnap(newX, newY);
  			this.currentPage = snap;
  			time = this.options.snapSpeed || Math.max(
  					Math.max(
  						Math.min(Math.abs(newX - snap.x), 1000),
  						Math.min(Math.abs(newY - snap.y), 1000)
  					), 300);
  			newX = snap.x;
  			newY = snap.y;
  
  			this.directionX = 0;
  			this.directionY = 0;
  			easing = this.options.bounceEasing;
  		}
  
  // INSERT POINT: _end
  
  		if ( newX != this.x || newY != this.y ) {
  			// change easing function when scroller goes out of the boundaries
  			if ( newX > 0 || newX < this.maxScrollX || newY > 0 || newY < this.maxScrollY ) {
  				easing = utils.ease.quadratic;
  			}
  
  			this.scrollTo(newX, newY, time, easing);
  			return;
  		}
  
  		this._execEvent('scrollEnd');
  	},
  
  	_resize: function () {
  		var that = this;
  
  		clearTimeout(this.resizeTimeout);
  
  		this.resizeTimeout = setTimeout(function () {
  			that.refresh();
  		}, this.options.resizePolling);
  	},
  
  	resetPosition: function (time) {
  		var x = this.x,
  			y = this.y;
  
  		time = time || 0;
  
  		if ( !this.hasHorizontalScroll || this.x > 0 ) {
  			x = 0;
  		} else if ( this.x < this.maxScrollX ) {
  			x = this.maxScrollX;
  		}
  
  		if ( !this.hasVerticalScroll || this.y > 0 ) {
  			y = 0;
  		} else if ( this.y < this.maxScrollY ) {
  			y = this.maxScrollY;
  		}
  
  		if ( x == this.x && y == this.y ) {
  			return false;
  		}
  
  		this.scrollTo(x, y, time, this.options.bounceEasing);
  
  		return true;
  	},
  
  	disable: function () {
  		this.enabled = false;
  	},
  
  	enable: function () {
  		this.enabled = true;
  	},
  
  	refresh: function () {
  		var rf = this.wrapper.offsetHeight;		// Force reflow
  
  		this.wrapperWidth	= this.wrapper.clientWidth;
  		this.wrapperHeight	= this.wrapper.clientHeight;
  
  /* REPLACE START: refresh */
  		this.scrollerWidth	= this.scroller.offsetWidth;
  		this.scrollerHeight	= this.scroller.offsetHeight;
  
  		this.maxScrollX		= this.wrapperWidth - this.scrollerWidth;
  		
  		var limit;
  		if ( this.options.infiniteElements ) {
  			this.options.infiniteLimit = this.options.infiniteLimit || Math.floor(2147483645 / this.infiniteElementHeight);
  			limit = -this.options.infiniteLimit * this.infiniteElementHeight + this.wrapperHeight;
  		}
  		this.maxScrollY		= limit !== undefined ? limit : this.wrapperHeight - this.scrollerHeight;
  /* REPLACE END: refresh */
  
  		this.hasHorizontalScroll	= this.options.scrollX && this.maxScrollX < 0;
  		this.hasVerticalScroll		= this.options.scrollY && this.maxScrollY < 0;
  
  		if ( !this.hasHorizontalScroll ) {
  			this.maxScrollX = 0;
  			this.scrollerWidth = this.wrapperWidth;
  		}
  
  		if ( !this.hasVerticalScroll ) {
  			this.maxScrollY = 0;
  			this.scrollerHeight = this.wrapperHeight;
  		}
  
  		this.endTime = 0;
  		this.directionX = 0;
  		this.directionY = 0;
  
  		this.wrapperOffset = utils.offset(this.wrapper);
  
  		this._execEvent('refresh');
  
  		this.resetPosition();
  
  // INSERT POINT: _refresh
  
  	},
  
  	on: function (type, fn) {
  		if ( !this._events[type] ) {
  			this._events[type] = [];
  		}
  
  		this._events[type].push(fn);
  	},
  
  	off: function (type, fn) {
  		if ( !this._events[type] ) {
  			return;
  		}
  
  		var index = this._events[type].indexOf(fn);
  
  		if ( index > -1 ) {
  			this._events[type].splice(index, 1);
  		}
  	},
  
  	_execEvent: function (type) {
  		if ( !this._events[type] ) {
  			return;
  		}
  
  		var i = 0,
  			l = this._events[type].length;
  
  		if ( !l ) {
  			return;
  		}
  
  		for ( ; i < l; i++ ) {
  			this._events[type][i].apply(this, [].slice.call(arguments, 1));
  		}
  	},
  
  	scrollBy: function (x, y, time, easing) {
  		x = this.x + x;
  		y = this.y + y;
  		time = time || 0;
  
  		this.scrollTo(x, y, time, easing);
  	},
  
  	scrollTo: function (x, y, time, easing) {
  		easing = easing || utils.ease.circular;
  
  		this.isInTransition = this.options.useTransition && time > 0;
  
  		if ( !time || (this.options.useTransition && easing.style) ) {
  			this._transitionTimingFunction(easing.style);
  			this._transitionTime(time);
  			this._translate(x, y);
  		} else {
  			this._animate(x, y, time, easing.fn);
  		}
  	},
  
  	scrollToElement: function (el, time, offsetX, offsetY, easing) {
  		el = el.nodeType ? el : this.scroller.querySelector(el);
  
  		if ( !el ) {
  			return;
  		}
  
  		var pos = utils.offset(el);
  
  		pos.left -= this.wrapperOffset.left;
  		pos.top  -= this.wrapperOffset.top;
  
  		// if offsetX/Y are true we center the element to the screen
  		if ( offsetX === true ) {
  			offsetX = Math.round(el.offsetWidth / 2 - this.wrapper.offsetWidth / 2);
  		}
  		if ( offsetY === true ) {
  			offsetY = Math.round(el.offsetHeight / 2 - this.wrapper.offsetHeight / 2);
  		}
  
  		pos.left -= offsetX || 0;
  		pos.top  -= offsetY || 0;
  
  		pos.left = pos.left > 0 ? 0 : pos.left < this.maxScrollX ? this.maxScrollX : pos.left;
  		pos.top  = pos.top  > 0 ? 0 : pos.top  < this.maxScrollY ? this.maxScrollY : pos.top;
  
  		time = time === undefined || time === null || time === 'auto' ? Math.max(Math.abs(this.x-pos.left), Math.abs(this.y-pos.top)) : time;
  
  		this.scrollTo(pos.left, pos.top, time, easing);
  	},
  
  	_transitionTime: function (time) {
  		time = time || 0;
  
  		this.scrollerStyle[utils.style.transitionDuration] = time + 'ms';
  
  		if ( !time && utils.isBadAndroid ) {
  			this.scrollerStyle[utils.style.transitionDuration] = '0.001s';
  		}
  
  // INSERT POINT: _transitionTime
  
  	},
  
  	_transitionTimingFunction: function (easing) {
  		this.scrollerStyle[utils.style.transitionTimingFunction] = easing;
  
  // INSERT POINT: _transitionTimingFunction
  
  	},
  
  	_translate: function (x, y) {
  		if ( this.options.useTransform ) {
  
  /* REPLACE START: _translate */
  
  			this.scrollerStyle[utils.style.transform] = 'translate(' + x + 'px,' + y + 'px)' + this.translateZ;
  
  /* REPLACE END: _translate */
  
  		} else {
  			x = Math.round(x);
  			y = Math.round(y);
  			this.scrollerStyle.left = x + 'px';
  			this.scrollerStyle.top = y + 'px';
  		}
  
  		this.x = x;
  		this.y = y;
  
  // INSERT POINT: _translate
  
  	},
  
  	_initEvents: function (remove) {
  		var eventType = remove ? utils.removeEvent : utils.addEvent,
  			target = this.options.bindToWrapper ? this.wrapper : window;
  
  		eventType(window, 'orientationchange', this);
  		eventType(window, 'resize', this);
  
  		if ( this.options.click ) {
  			eventType(this.wrapper, 'click', this, true);
  		}
  
  		if ( !this.options.disableMouse ) {
  			eventType(this.wrapper, 'mousedown', this);
  			eventType(target, 'mousemove', this);
  			eventType(target, 'mousecancel', this);
  			eventType(target, 'mouseup', this);
  		}
  
  		if ( utils.hasPointer && !this.options.disablePointer ) {
  			eventType(this.wrapper, 'MSPointerDown', this);
  			eventType(target, 'MSPointerMove', this);
  			eventType(target, 'MSPointerCancel', this);
  			eventType(target, 'MSPointerUp', this);
  		}
  
  		if ( utils.hasTouch && !this.options.disableTouch ) {
  			eventType(this.wrapper, 'touchstart', this);
  			eventType(target, 'touchmove', this);
  			eventType(target, 'touchcancel', this);
  			eventType(target, 'touchend', this);
  		}
  
  		eventType(this.scroller, 'transitionend', this);
  		eventType(this.scroller, 'webkitTransitionEnd', this);
  		eventType(this.scroller, 'oTransitionEnd', this);
  		eventType(this.scroller, 'MSTransitionEnd', this);
  	},
  
  	getComputedPosition: function () {
  		var matrix = window.getComputedStyle(this.scroller, null),
  			x, y;
  
  		if ( this.options.useTransform ) {
  			matrix = matrix[utils.style.transform].split(')')[0].split(', ');
  			x = +(matrix[12] || matrix[4]);
  			y = +(matrix[13] || matrix[5]);
  		} else {
  			x = +matrix.left.replace(/[^-\d.]/g, '');
  			y = +matrix.top.replace(/[^-\d.]/g, '');
  		}
  
  		return { x: x, y: y };
  	},
  
  	_initWheel: function () {
  		utils.addEvent(this.wrapper, 'wheel', this);
  		utils.addEvent(this.wrapper, 'mousewheel', this);
  		utils.addEvent(this.wrapper, 'DOMMouseScroll', this);
  
  		this.on('destroy', function () {
  			utils.removeEvent(this.wrapper, 'wheel', this);
  			utils.removeEvent(this.wrapper, 'mousewheel', this);
  			utils.removeEvent(this.wrapper, 'DOMMouseScroll', this);
  		});
  	},
  
  	_wheel: function (e) {
  		if ( !this.enabled ) {
  			return;
  		}
  
  		e.preventDefault();
  		e.stopPropagation();
  
  		var wheelDeltaX, wheelDeltaY,
  			newX, newY,
  			that = this;
  
  		if ( this.wheelTimeout === undefined ) {
  			that._execEvent('scrollStart');
  		}
  
  		// Execute the scrollEnd event after 400ms the wheel stopped scrolling
  		clearTimeout(this.wheelTimeout);
  		this.wheelTimeout = setTimeout(function () {
  			that._execEvent('scrollEnd');
  			that.wheelTimeout = undefined;
  		}, 400);
  
  		if ( 'deltaX' in e ) {
  			wheelDeltaX = -e.deltaX;
  			wheelDeltaY = -e.deltaY;
  		} else if ( 'wheelDeltaX' in e ) {
  			wheelDeltaX = e.wheelDeltaX / 120 * this.options.mouseWheelSpeed;
  			wheelDeltaY = e.wheelDeltaY / 120 * this.options.mouseWheelSpeed;
  		} else if ( 'wheelDelta' in e ) {
  			wheelDeltaX = wheelDeltaY = e.wheelDelta / 120 * this.options.mouseWheelSpeed;
  		} else if ( 'detail' in e ) {
  			wheelDeltaX = wheelDeltaY = -e.detail / 3 * this.options.mouseWheelSpeed;
  		} else {
  			return;
  		}
  
  		wheelDeltaX *= this.options.invertWheelDirection;
  		wheelDeltaY *= this.options.invertWheelDirection;
  
  		if ( !this.hasVerticalScroll ) {
  			wheelDeltaX = wheelDeltaY;
  			wheelDeltaY = 0;
  		}
  
  		if ( this.options.snap ) {
  			newX = this.currentPage.pageX;
  			newY = this.currentPage.pageY;
  
  			if ( wheelDeltaX > 0 ) {
  				newX--;
  			} else if ( wheelDeltaX < 0 ) {
  				newX++;
  			}
  
  			if ( wheelDeltaY > 0 ) {
  				newY--;
  			} else if ( wheelDeltaY < 0 ) {
  				newY++;
  			}
  
  			this.goToPage(newX, newY);
  
  			return;
  		}
  
  		newX = this.x + Math.round(this.hasHorizontalScroll ? wheelDeltaX : 0);
  		newY = this.y + Math.round(this.hasVerticalScroll ? wheelDeltaY : 0);
  
  		if ( newX > 0 ) {
  			newX = 0;
  		} else if ( newX < this.maxScrollX ) {
  			newX = this.maxScrollX;
  		}
  
  		if ( newY > 0 ) {
  			newY = 0;
  		} else if ( newY < this.maxScrollY ) {
  			newY = this.maxScrollY;
  		}
  
  		this.scrollTo(newX, newY, 0);
  
  		if ( this.options.probeType > 1 ) {
  			this._execEvent('scroll');
  		}
  
  // INSERT POINT: _wheel
  	},
  
  	_initSnap: function () {
  		this.currentPage = {};
  
  		if ( typeof this.options.snap == 'string' ) {
  			this.options.snap = this.scroller.querySelectorAll(this.options.snap);
  		}
  
  		this.on('refresh', function () {
  			var i = 0, l,
  				m = 0, n,
  				cx, cy,
  				x = 0, y,
  				stepX = this.options.snapStepX || this.wrapperWidth,
  				stepY = this.options.snapStepY || this.wrapperHeight,
  				el;
  
  			this.pages = [];
  
  			if ( !this.wrapperWidth || !this.wrapperHeight || !this.scrollerWidth || !this.scrollerHeight ) {
  				return;
  			}
  
  			if ( this.options.snap === true ) {
  				cx = Math.round( stepX / 2 );
  				cy = Math.round( stepY / 2 );
  
  				while ( x > -this.scrollerWidth ) {
  					this.pages[i] = [];
  					l = 0;
  					y = 0;
  
  					while ( y > -this.scrollerHeight ) {
  						this.pages[i][l] = {
  							x: Math.max(x, this.maxScrollX),
  							y: Math.max(y, this.maxScrollY),
  							width: stepX,
  							height: stepY,
  							cx: x - cx,
  							cy: y - cy
  						};
  
  						y -= stepY;
  						l++;
  					}
  
  					x -= stepX;
  					i++;
  				}
  			} else {
  				el = this.options.snap;
  				l = el.length;
  				n = -1;
  
  				for ( ; i < l; i++ ) {
  					if ( i === 0 || el[i].offsetLeft <= el[i-1].offsetLeft ) {
  						m = 0;
  						n++;
  					}
  
  					if ( !this.pages[m] ) {
  						this.pages[m] = [];
  					}
  
  					x = Math.max(-el[i].offsetLeft, this.maxScrollX);
  					y = Math.max(-el[i].offsetTop, this.maxScrollY);
  					cx = x - Math.round(el[i].offsetWidth / 2);
  					cy = y - Math.round(el[i].offsetHeight / 2);
  
  					this.pages[m][n] = {
  						x: x,
  						y: y,
  						width: el[i].offsetWidth,
  						height: el[i].offsetHeight,
  						cx: cx,
  						cy: cy
  					};
  
  					if ( x > this.maxScrollX ) {
  						m++;
  					}
  				}
  			}
  
  			this.goToPage(this.currentPage.pageX || 0, this.currentPage.pageY || 0, 0);
  
  			// Update snap threshold if needed
  			if ( this.options.snapThreshold % 1 === 0 ) {
  				this.snapThresholdX = this.options.snapThreshold;
  				this.snapThresholdY = this.options.snapThreshold;
  			} else {
  				this.snapThresholdX = Math.round(this.pages[this.currentPage.pageX][this.currentPage.pageY].width * this.options.snapThreshold);
  				this.snapThresholdY = Math.round(this.pages[this.currentPage.pageX][this.currentPage.pageY].height * this.options.snapThreshold);
  			}
  		});
  
  		this.on('flick', function () {
  			var time = this.options.snapSpeed || Math.max(
  					Math.max(
  						Math.min(Math.abs(this.x - this.startX), 1000),
  						Math.min(Math.abs(this.y - this.startY), 1000)
  					), 300);
  
  			this.goToPage(
  				this.currentPage.pageX + this.directionX,
  				this.currentPage.pageY + this.directionY,
  				time
  			);
  		});
  	},
  
  	_nearestSnap: function (x, y) {
  		if ( !this.pages.length ) {
  			return { x: 0, y: 0, pageX: 0, pageY: 0 };
  		}
  
  		var i = 0,
  			l = this.pages.length,
  			m = 0;
  
  		// Check if we exceeded the snap threshold
  		if ( Math.abs(x - this.absStartX) < this.snapThresholdX &&
  			Math.abs(y - this.absStartY) < this.snapThresholdY ) {
  			return this.currentPage;
  		}
  
  		if ( x > 0 ) {
  			x = 0;
  		} else if ( x < this.maxScrollX ) {
  			x = this.maxScrollX;
  		}
  
  		if ( y > 0 ) {
  			y = 0;
  		} else if ( y < this.maxScrollY ) {
  			y = this.maxScrollY;
  		}
  
  		for ( ; i < l; i++ ) {
  			if ( x >= this.pages[i][0].cx ) {
  				x = this.pages[i][0].x;
  				break;
  			}
  		}
  
  		l = this.pages[i].length;
  
  		for ( ; m < l; m++ ) {
  			if ( y >= this.pages[0][m].cy ) {
  				y = this.pages[0][m].y;
  				break;
  			}
  		}
  
  		if ( i == this.currentPage.pageX ) {
  			i += this.directionX;
  
  			if ( i < 0 ) {
  				i = 0;
  			} else if ( i >= this.pages.length ) {
  				i = this.pages.length - 1;
  			}
  
  			x = this.pages[i][0].x;
  		}
  
  		if ( m == this.currentPage.pageY ) {
  			m += this.directionY;
  
  			if ( m < 0 ) {
  				m = 0;
  			} else if ( m >= this.pages[0].length ) {
  				m = this.pages[0].length - 1;
  			}
  
  			y = this.pages[0][m].y;
  		}
  
  		return {
  			x: x,
  			y: y,
  			pageX: i,
  			pageY: m
  		};
  	},
  
  	goToPage: function (x, y, time, easing) {
  		easing = easing || this.options.bounceEasing;
  
  		if ( x >= this.pages.length ) {
  			x = this.pages.length - 1;
  		} else if ( x < 0 ) {
  			x = 0;
  		}
  
  		if ( y >= this.pages[x].length ) {
  			y = this.pages[x].length - 1;
  		} else if ( y < 0 ) {
  			y = 0;
  		}
  
  		var posX = this.pages[x][y].x,
  			posY = this.pages[x][y].y;
  
  		time = time === undefined ? this.options.snapSpeed || Math.max(
  			Math.max(
  				Math.min(Math.abs(posX - this.x), 1000),
  				Math.min(Math.abs(posY - this.y), 1000)
  			), 300) : time;
  
  		this.currentPage = {
  			x: posX,
  			y: posY,
  			pageX: x,
  			pageY: y
  		};
  
  		this.scrollTo(posX, posY, time, easing);
  	},
  
  	next: function (time, easing) {
  		var x = this.currentPage.pageX,
  			y = this.currentPage.pageY;
  
  		x++;
  
  		if ( x >= this.pages.length && this.hasVerticalScroll ) {
  			x = 0;
  			y++;
  		}
  
  		this.goToPage(x, y, time, easing);
  	},
  
  	prev: function (time, easing) {
  		var x = this.currentPage.pageX,
  			y = this.currentPage.pageY;
  
  		x--;
  
  		if ( x < 0 && this.hasVerticalScroll ) {
  			x = 0;
  			y--;
  		}
  
  		this.goToPage(x, y, time, easing);
  	},
  
  	_initKeys: function (e) {
  		// default key bindings
  		var keys = {
  			pageUp: 33,
  			pageDown: 34,
  			end: 35,
  			home: 36,
  			left: 37,
  			up: 38,
  			right: 39,
  			down: 40
  		};
  		var i;
  
  		// if you give me characters I give you keycode
  		if ( typeof this.options.keyBindings == 'object' ) {
  			for ( i in this.options.keyBindings ) {
  				if ( typeof this.options.keyBindings[i] == 'string' ) {
  					this.options.keyBindings[i] = this.options.keyBindings[i].toUpperCase().charCodeAt(0);
  				}
  			}
  		} else {
  			this.options.keyBindings = {};
  		}
  
  		for ( i in keys ) {
  			this.options.keyBindings[i] = this.options.keyBindings[i] || keys[i];
  		}
  
  		utils.addEvent(window, 'keydown', this);
  
  		this.on('destroy', function () {
  			utils.removeEvent(window, 'keydown', this);
  		});
  	},
  
  	_key: function (e) {
  		if ( !this.enabled ) {
  			return;
  		}
  
  		var snap = this.options.snap,	// we are using this alot, better to cache it
  			newX = snap ? this.currentPage.pageX : this.x,
  			newY = snap ? this.currentPage.pageY : this.y,
  			now = utils.getTime(),
  			prevTime = this.keyTime || 0,
  			acceleration = 0.250,
  			pos;
  
  		if ( this.options.useTransition && this.isInTransition ) {
  			pos = this.getComputedPosition();
  
  			this._translate(Math.round(pos.x), Math.round(pos.y));
  			this.isInTransition = false;
  		}
  
  		this.keyAcceleration = now - prevTime < 200 ? Math.min(this.keyAcceleration + acceleration, 50) : 0;
  
  		switch ( e.keyCode ) {
  			case this.options.keyBindings.pageUp:
  				if ( this.hasHorizontalScroll && !this.hasVerticalScroll ) {
  					newX += snap ? 1 : this.wrapperWidth;
  				} else {
  					newY += snap ? 1 : this.wrapperHeight;
  				}
  				break;
  			case this.options.keyBindings.pageDown:
  				if ( this.hasHorizontalScroll && !this.hasVerticalScroll ) {
  					newX -= snap ? 1 : this.wrapperWidth;
  				} else {
  					newY -= snap ? 1 : this.wrapperHeight;
  				}
  				break;
  			case this.options.keyBindings.end:
  				newX = snap ? this.pages.length-1 : this.maxScrollX;
  				newY = snap ? this.pages[0].length-1 : this.maxScrollY;
  				break;
  			case this.options.keyBindings.home:
  				newX = 0;
  				newY = 0;
  				break;
  			case this.options.keyBindings.left:
  				newX += snap ? -1 : 5 + this.keyAcceleration>>0;
  				break;
  			case this.options.keyBindings.up:
  				newY += snap ? 1 : 5 + this.keyAcceleration>>0;
  				break;
  			case this.options.keyBindings.right:
  				newX -= snap ? -1 : 5 + this.keyAcceleration>>0;
  				break;
  			case this.options.keyBindings.down:
  				newY -= snap ? 1 : 5 + this.keyAcceleration>>0;
  				break;
  			default:
  				return;
  		}
  
  		if ( snap ) {
  			this.goToPage(newX, newY);
  			return;
  		}
  
  		if ( newX > 0 ) {
  			newX = 0;
  			this.keyAcceleration = 0;
  		} else if ( newX < this.maxScrollX ) {
  			newX = this.maxScrollX;
  			this.keyAcceleration = 0;
  		}
  
  		if ( newY > 0 ) {
  			newY = 0;
  			this.keyAcceleration = 0;
  		} else if ( newY < this.maxScrollY ) {
  			newY = this.maxScrollY;
  			this.keyAcceleration = 0;
  		}
  
  		this.scrollTo(newX, newY, 0);
  
  		this.keyTime = now;
  	},
  
  	_animate: function (destX, destY, duration, easingFn) {
  		var that = this,
  			startX = this.x,
  			startY = this.y,
  			startTime = utils.getTime(),
  			destTime = startTime + duration;
  
  		function step () {
  			var now = utils.getTime(),
  				newX, newY,
  				easing;
  
  			if ( now >= destTime ) {
  				that.isAnimating = false;
  				that._translate(destX, destY);
  				
  				if ( !that.resetPosition(that.options.bounceTime) ) {
  					that._execEvent('scrollEnd');
  				}
  
  				return;
  			}
  
  			now = ( now - startTime ) / duration;
  			easing = easingFn(now);
  			newX = ( destX - startX ) * easing + startX;
  			newY = ( destY - startY ) * easing + startY;
  			that._translate(newX, newY);
  
  			if ( that.isAnimating ) {
  				rAF(step);
  			}
  
  			if ( that.options.probeType == 3 ) {
  				that._execEvent('scroll');
  			}
  		}
  
  		this.isAnimating = true;
  		step();
  	},
  
  	_initInfinite: function () {
  		var el = this.options.infiniteElements;
  
  		this.infiniteElements = typeof el == 'string' ? document.querySelectorAll(el) : el;
  		this.infiniteLength = this.infiniteElements.length;
  		this.infiniteMaster = this.infiniteElements[0];
  		this.infiniteElementHeight = this.infiniteMaster.offsetHeight;
  		this.infiniteHeight = this.infiniteLength * this.infiniteElementHeight;
  
  		this.options.cacheSize = this.options.cacheSize || 1000;
  		this.infiniteCacheBuffer = Math.round(this.options.cacheSize / 4);
  
  		//this.infiniteCache = {};
  		this.options.dataset.call(this, 0, this.options.cacheSize);
  
  		this.on('refresh', function () {
  			var elementsPerPage = Math.ceil(this.wrapperHeight / this.infiniteElementHeight);
  			this.infiniteUpperBufferSize = Math.floor((this.infiniteLength - elementsPerPage) / 2);
  			this.reorderInfinite();
  		});
  
  		this.on('scroll', this.reorderInfinite);
  	},
  
  	// TO-DO: clean up the mess
  	reorderInfinite: function () {
  		var center = -this.y + this.wrapperHeight / 2;
  
  		var minorPhase = Math.max(Math.floor(-this.y / this.infiniteElementHeight) - this.infiniteUpperBufferSize, 0),
  			majorPhase = Math.floor(minorPhase / this.infiniteLength),
  			phase = minorPhase - majorPhase * this.infiniteLength;
  
  		var top = 0;
  		var i = 0;
  		var update = [];
  
  		//var cachePhase = Math.floor((minorPhase + this.infiniteLength / 2) / this.infiniteCacheBuffer);
  		var cachePhase = Math.floor(minorPhase / this.infiniteCacheBuffer);
  
  		while ( i < this.infiniteLength ) {
  			top = i * this.infiniteElementHeight + majorPhase * this.infiniteHeight;
  
  			if ( phase > i ) {
  				top += this.infiniteElementHeight * this.infiniteLength;
  			}
  
  			if ( this.infiniteElements[i]._top !== top ) {
  				this.infiniteElements[i]._phase = top / this.infiniteElementHeight;
  
  				if ( this.infiniteElements[i]._phase < this.options.infiniteLimit ) {
  					this.infiniteElements[i]._top = top;
  					if ( this.options.infiniteUseTransform ) {
  						this.infiniteElements[i].style[utils.style.transform] = 'translate(0, ' + top + 'px)' + this.translateZ;
  					} else {
  						this.infiniteElements[i].style.top = top + 'px';
  					}
  					update.push(this.infiniteElements[i]);
  				}
  			}
  
  			i++;
  		}
  
  		if ( this.cachePhase != cachePhase && (cachePhase === 0 || minorPhase - this.infiniteCacheBuffer > 0) ) {
  			this.options.dataset.call(this, Math.max(cachePhase * this.infiniteCacheBuffer - this.infiniteCacheBuffer, 0), this.options.cacheSize);
  		}
  
  		this.cachePhase = cachePhase;
  
  		this.updateContent(update);
  	},
  
  	updateContent: function (els) {
  		if ( this.infiniteCache === undefined ) {
  			return;
  		}
  
  		for ( var i = 0, l = els.length; i < l; i++ ) {
  			this.options.dataFiller.call(this, els[i], this.infiniteCache[els[i]._phase]);
  		}
  	},
  
  	updateCache: function (start, data) {
  		var firstRun = this.infiniteCache === undefined;
  
  		this.infiniteCache = {};
  
  		for ( var i = 0, l = data.length; i < l; i++ ) {
  			this.infiniteCache[start++] = data[i];
  		}
  
  		if ( firstRun ) {
  			this.updateContent(this.infiniteElements);
  		}
  
  	},
  
  
  	handleEvent: function (e) {
  		switch ( e.type ) {
  			case 'touchstart':
  			case 'MSPointerDown':
  			case 'mousedown':
  				this._start(e);
  				break;
  			case 'touchmove':
  			case 'MSPointerMove':
  			case 'mousemove':
  				this._move(e);
  				break;
  			case 'touchend':
  			case 'MSPointerUp':
  			case 'mouseup':
  			case 'touchcancel':
  			case 'MSPointerCancel':
  			case 'mousecancel':
  				this._end(e);
  				break;
  			case 'orientationchange':
  			case 'resize':
  				this._resize();
  				break;
  			case 'transitionend':
  			case 'webkitTransitionEnd':
  			case 'oTransitionEnd':
  			case 'MSTransitionEnd':
  				this._transitionEnd(e);
  				break;
  			case 'wheel':
  			case 'DOMMouseScroll':
  			case 'mousewheel':
  				this._wheel(e);
  				break;
  			case 'keydown':
  				this._key(e);
  				break;
  			case 'click':
  				if ( !e._constructed ) {
  					e.preventDefault();
  					e.stopPropagation();
  				}
  				break;
  		}
  	}
  };
  IScroll.utils = utils;
  
  if ( typeof module != 'undefined' && module.exports ) {
  	module.exports = IScroll;
  } else {
  	window.IScroll = IScroll;
  }
  
  })(window, document, Math);