function FastClick(layer, options) {
		var oldOnClick;

		options = options || {};

		/**
		 * Whether a click is currently being tracked.
		 *
		 * @type boolean
		 */
		this.trackingClick = false;


		/**
		 * Timestamp for when click tracking started.
		 *
		 * @type number
		 */
		this.trackingClickStart = 0;


		/**
		 * The element being tracked for a click.
		 *
		 * @type EventTarget
		 */
		this.targetElement = null;


		/**
		 * X-coordinate of touch start event.
		 *
		 * @type number
		 */
		this.touchStartX = 0;


		/**
		 * Y-coordinate of touch start event.
		 *
		 * @type number
		 */
		this.touchStartY = 0;


		/**
		 * ID of the last touch, retrieved from Touch.identifier.
		 *
		 * @type number
		 */
		this.lastTouchIdentifier = 0;


		/**
		 * Touchmove boundary, beyond which a click will be cancelled.
		 *
		 * @type number
		 */
		this.touchBoundary = options.touchBoundary || 10;


		/**
		 * The FastClick layer.
		 *
		 * @type Element
		 */
		this.layer = layer;

		/**
		 * The minimum time between tap(touchstart and touchend) events
		 *
		 * @type number
		 */
		this.tapDelay = options.tapDelay || 200;

		/**
		 * The maximum time for a tap
		 *
		 * @type number
		 */
		this.tapTimeout = options.tapTimeout || 700;

		if (FastClick.notNeeded(layer)) {
			return;
		}

		// Some old versions of Android don't have Function.prototype.bind
		function bind(method, context) {
			return function() { return method.apply(context, arguments); };
		}


		var methods = ['onMouse', 'onClick', 'onTouchStart', 'onTouchMove', 'onTouchEnd', 'onTouchCancel'];
		var context = this;
		for (var i = 0, l = methods.length; i < l; i++) {
			context[methods[i]] = bind(context[methods[i]], context);
		}

		// Set up event handlers as required
		if (deviceIsAndroid) {
			layer.addEventListener('mouseover', this.onMouse, true);
			layer.addEventListener('mousedown', this.onMouse, true);
			layer.addEventListener('mouseup', this.onMouse, true);
		}

		layer.addEventListener('click', this.onClick, true);
		layer.addEventListener('touchstart', this.onTouchStart, false);
		layer.addEventListener('touchmove', this.onTouchMove, false);
		layer.addEventListener('touchend', this.onTouchEnd, false);
		layer.addEventListener('touchcancel', this.onTouchCancel, false);

		// Hack is required for browsers that don't support Event#stopImmediatePropagation (e.g. Android 2)
		// which is how FastClick normally stops click events bubbling to callbacks registered on the FastClick
		// layer when they are cancelled.
		if (!Event.prototype.stopImmediatePropagation) {
			layer.removeEventListener = function(type, callback, capture) {
				var rmv = Node.prototype.removeEventListener;
				if (type === 'click') {
					rmv.call(layer, type, callback.hijacked || callback, capture);
				} else {
					rmv.call(layer, type, callback, capture);
				}
			};

			layer.addEventListener = function(type, callback, capture) {
				var adv = Node.prototype.addEventListener;
				if (type === 'click') {
					adv.call(layer, type, callback.hijacked || (callback.hijacked = function(event) {
						if (!event.propagationStopped) {
							callback(event);
						}
					}), capture);
				} else {
					adv.call(layer, type, callback, capture);
				}
			};
		}

		// If a handler is already declared in the element's onclick attribute, it will be fired before
		// FastClick's onClick handler. Fix this by pulling out the user-defined handler function and
		// adding it as listener.
		if (typeof layer.onclick === 'function') {

			// Android browser on at least 3.2 requires a new reference to the function in layer.onclick
			// - the old one won't work if passed to addEventListener directly.
			oldOnClick = layer.onclick;
			layer.addEventListener('click', function(event) {
				oldOnClick(event);
			}, false);
			layer.onclick = null;
		}
	}
Instantiate fast-clicking listeners on the specified layer.

@constructor
@param {Element} layer The layer to listen on
@param {Object} [options={}] The options to override the defaults