leaflet/dist/leaflet-src.js

JavaScript library for mobile-friendly interactive maps

/*
 Leaflet 1.0.0-beta.2 (55fe462), a JS library for interactive maps. http://leafletjs.com
 (c) 2010-2015 Vladimir Agafonkin, (c) 2010-2011 CloudMade
*/
(function (window, document, undefined) {
var L = {
	version: '1.0.0-beta.2'
};

function expose() {
	var oldL = window.L;

	L.noConflict = function () {
		window.L = oldL;
		return this;
	};

	window.L = L;
}

// define Leaflet for Node module pattern loaders, including Browserify
if (typeof module === 'object' && typeof module.exports === 'object') {
	module.exports = L;

// define Leaflet as an AMD module
} else if (typeof define === 'function' && define.amd) {
	define(L);
}

// define Leaflet as a global L variable, saving the original L to restore later if needed
if (typeof window !== 'undefined') {
	expose();
}



/*
 * L.Util contains various utility functions used throughout Leaflet code.
 */

L.Util = {
	// extend an object with properties of one or more other objects
	extend: function (dest) {
		var i, j, len, src;

		for (j = 1, len = arguments.length; j < len; j++) {
			src = arguments[j];
			for (i in src) {
				dest[i] = src[i];
			}
		}
		return dest;
	},

	// create an object from a given prototype
	create: Object.create || (function () {
		function F() {}
		return function (proto) {
			F.prototype = proto;
			return new F();
		};
	})(),

	// bind a function to be called with a given context
	bind: function (fn, obj) {
		var slice = Array.prototype.slice;

		if (fn.bind) {
			return fn.bind.apply(fn, slice.call(arguments, 1));
		}

		var args = slice.call(arguments, 2);

		return function () {
			return fn.apply(obj, args.length ? args.concat(slice.call(arguments)) : arguments);
		};
	},

	// return unique ID of an object
	stamp: function (obj) {
		/*eslint-disable */
		obj._leaflet_id = obj._leaflet_id || ++L.Util.lastId;
		return obj._leaflet_id;
		/*eslint-enable */
	},

	lastId: 0,

	// return a function that won't be called more often than the given interval
	throttle: function (fn, time, context) {
		var lock, args, wrapperFn, later;

		later = function () {
			// reset lock and call if queued
			lock = false;
			if (args) {
				wrapperFn.apply(context, args);
				args = false;
			}
		};

		wrapperFn = function () {
			if (lock) {
				// called too soon, queue to call later
				args = arguments;

			} else {
				// call and lock until later
				fn.apply(context, arguments);
				setTimeout(later, time);
				lock = true;
			}
		};

		return wrapperFn;
	},

	// wrap the given number to lie within a certain range (used for wrapping longitude)
	wrapNum: function (x, range, includeMax) {
		var max = range[1],
		    min = range[0],
		    d = max - min;
		return x === max && includeMax ? x : ((x - min) % d + d) % d + min;
	},

	// do nothing (used as a noop throughout the code)
	falseFn: function () { return false; },

	// round a given number to a given precision
	formatNum: function (num, digits) {
		var pow = Math.pow(10, digits || 5);
		return Math.round(num * pow) / pow;
	},

	// trim whitespace from both sides of a string
	trim: function (str) {
		return str.trim ? str.trim() : str.replace(/^\s+|\s+$/g, '');
	},

	// split a string into words
	splitWords: function (str) {
		return L.Util.trim(str).split(/\s+/);
	},

	// set options to an object, inheriting parent's options as well
	setOptions: function (obj, options) {
		if (!obj.hasOwnProperty('options')) {
			obj.options = obj.options ? L.Util.create(obj.options) : {};
		}
		for (var i in options) {
			obj.options[i] = options[i];
		}
		return obj.options;
	},

	// make a URL with GET parameters out of a set of properties/values
	getParamString: function (obj, existingUrl, uppercase) {
		var params = [];
		for (var i in obj) {
			params.push(encodeURIComponent(uppercase ? i.toUpperCase() : i) + '=' + encodeURIComponent(obj[i]));
		}
		return ((!existingUrl || existingUrl.indexOf('?') === -1) ? '?' : '&') + params.join('&');
	},

	// super-simple templating facility, used for TileLayer URLs
	template: function (str, data) {
		return str.replace(L.Util.templateRe, function (str, key) {
			var value = data[key];

			if (value === undefined) {
				throw new Error('No value provided for variable ' + str);

			} else if (typeof value === 'function') {
				value = value(data);
			}
			return value;
		});
	},

	templateRe: /\{ *([\w_]+) *\}/g,

	isArray: Array.isArray || function (obj) {
		return (Object.prototype.toString.call(obj) === '[object Array]');
	},

	indexOf: function (array, el) {
		for (var i = 0; i < array.length; i++) {
			if (array[i] === el) { return i; }
		}
		return -1;
	},

	// minimal image URI, set to an image when disposing to flush memory
	emptyImageUrl: 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs='
};

(function () {
	// inspired by http://paulirish.com/2011/requestanimationframe-for-smart-animating/

	function getPrefixed(name) {
		return window['webkit' + name] || window['moz' + name] || window['ms' + name];
	}

	var lastTime = 0;

	// fallback for IE 7-8
	function timeoutDefer(fn) {
		var time = +new Date(),
		    timeToCall = Math.max(0, 16 - (time - lastTime));

		lastTime = time + timeToCall;
		return window.setTimeout(fn, timeToCall);
	}

	var requestFn = window.requestAnimationFrame || getPrefixed('RequestAnimationFrame') || timeoutDefer,
	    cancelFn = window.cancelAnimationFrame || getPrefixed('CancelAnimationFrame') ||
	               getPrefixed('CancelRequestAnimationFrame') || function (id) { window.clearTimeout(id); };


	L.Util.requestAnimFrame = function (fn, context, immediate) {
		if (immediate && requestFn === timeoutDefer) {
			fn.call(context);
		} else {
			return requestFn.call(window, L.bind(fn, context));
		}
	};

	L.Util.cancelAnimFrame = function (id) {
		if (id) {
			cancelFn.call(window, id);
		}
	};
})();

// shortcuts for most used utility functions
L.extend = L.Util.extend;
L.bind = L.Util.bind;
L.stamp = L.Util.stamp;
L.setOptions = L.Util.setOptions;



/*
 * L.Class powers the OOP facilities of the library.
 * Thanks to John Resig and Dean Edwards for inspiration!
 */

L.Class = function () {};

L.Class.extend = function (props) {

	// extended class with the new prototype
	var NewClass = function () {

		// call the constructor
		if (this.initialize) {
			this.initialize.apply(this, arguments);
		}

		// call all constructor hooks
		this.callInitHooks();
	};

	var parentProto = NewClass.__super__ = this.prototype;

	var proto = L.Util.create(parentProto);
	proto.constructor = NewClass;

	NewClass.prototype = proto;

	// inherit parent's statics
	for (var i in this) {
		if (this.hasOwnProperty(i) && i !== 'prototype') {
			NewClass[i] = this[i];
		}
	}

	// mix static properties into the class
	if (props.statics) {
		L.extend(NewClass, props.statics);
		delete props.statics;
	}

	// mix includes into the prototype
	if (props.includes) {
		L.Util.extend.apply(null, [proto].concat(props.includes));
		delete props.includes;
	}

	// merge options
	if (proto.options) {
		props.options = L.Util.extend(L.Util.create(proto.options), props.options);
	}

	// mix given properties into the prototype
	L.extend(proto, props);

	proto._initHooks = [];

	// add method for calling all hooks
	proto.callInitHooks = function () {

		if (this._initHooksCalled) { return; }

		if (parentProto.callInitHooks) {
			parentProto.callInitHooks.call(this);
		}

		this._initHooksCalled = true;

		for (var i = 0, len = proto._initHooks.length; i < len; i++) {
			proto._initHooks[i].call(this);
		}
	};

	return NewClass;
};


// method for adding properties to prototype
L.Class.include = function (props) {
	L.extend(this.prototype, props);
};

// merge new default options to the Class
L.Class.mergeOptions = function (options) {
	L.extend(this.prototype.options, options);
};

// add a constructor hook
L.Class.addInitHook = function (fn) { // (Function) || (String, args...)
	var args = Array.prototype.slice.call(arguments, 1);

	var init = typeof fn === 'function' ? fn : function () {
		this[fn].apply(this, args);
	};

	this.prototype._initHooks = this.prototype._initHooks || [];
	this.prototype._initHooks.push(init);
};



/*
 * L.Evented is a base class that Leaflet classes inherit from to handle custom events.
 */

L.Evented = L.Class.extend({

	on: function (types, fn, context) {

		// types can be a map of types/handlers
		if (typeof types === 'object') {
			for (var type in types) {
				// we don't process space-separated events here for performance;
				// it's a hot path since Layer uses the on(obj) syntax
				this._on(type, types[type], fn);
			}

		} else {
			// types can be a string of space-separated words
			types = L.Util.splitWords(types);

			for (var i = 0, len = types.length; i < len; i++) {
				this._on(types[i], fn, context);
			}
		}

		return this;
	},

	off: function (types, fn, context) {

		if (!types) {
			// clear all listeners if called without arguments
			delete this._events;

		} else if (typeof types === 'object') {
			for (var type in types) {
				this._off(type, types[type], fn);
			}

		} else {
			types = L.Util.splitWords(types);

			for (var i = 0, len = types.length; i < len; i++) {
				this._off(types[i], fn, context);
			}
		}

		return this;
	},

	// attach listener (without syntactic sugar now)
	_on: function (type, fn, context) {

		var events = this._events = this._events || {},
		    contextId = context && context !== this && L.stamp(context);

		if (contextId) {
			// store listeners with custom context in a separate hash (if it has an id);
			// gives a major performance boost when firing and removing events (e.g. on map object)

			var indexKey = type + '_idx',
			    indexLenKey = type + '_len',
			    typeIndex = events[indexKey] = events[indexKey] || {},
			    id = L.stamp(fn) + '_' + contextId;

			if (!typeIndex[id]) {
				typeIndex[id] = {fn: fn, ctx: context};

				// keep track of the number of keys in the index to quickly check if it's empty
				events[indexLenKey] = (events[indexLenKey] || 0) + 1;
			}

		} else {
			// individual layers mostly use "this" for context and don't fire listeners too often
			// so simple array makes the memory footprint better while not degrading performance

			events[type] = events[type] || [];
			events[type].push({fn: fn});
		}
	},

	_off: function (type, fn, context) {
		var events = this._events,
		    indexKey = type + '_idx',
		    indexLenKey = type + '_len';

		if (!events) { return; }

		if (!fn) {
			// clear all listeners for a type if function isn't specified
			delete events[type];
			delete events[indexKey];
			delete events[indexLenKey];
			return;
		}

		var contextId = context && context !== this && L.stamp(context),
		    listeners, i, len, listener, id;

		if (contextId) {
			id = L.stamp(fn) + '_' + contextId;
			listeners = events[indexKey];

			if (listeners && listeners[id]) {
				listener = listeners[id];
				delete listeners[id];
				events[indexLenKey]--;
			}

		} else {
			listeners = events[type];

			if (listeners) {
				for (i = 0, len = listeners.length; i < len; i++) {
					if (listeners[i].fn === fn) {
						listener = listeners[i];
						listeners.splice(i, 1);
						break;
					}
				}
			}
		}

		// set the removed listener to noop so that's not called if remove happens in fire
		if (listener) {
			listener.fn = L.Util.falseFn;
		}
	},

	fire: function (type, data, propagate) {
		if (!this.listens(type, propagate)) { return this; }

		var event = L.Util.extend({}, data, {type: type, target: this}),
		    events = this._events;

		if (events) {
			var typeIndex = events[type + '_idx'],
			    i, len, listeners, id;

			if (events[type]) {
				// make sure adding/removing listeners inside other listeners won't cause infinite loop
				listeners = events[type].slice();

				for (i = 0, len = listeners.length; i < len; i++) {
					listeners[i].fn.call(this, event);
				}
			}

			// fire event for the context-indexed listeners as well
			for (id in typeIndex) {
				typeIndex[id].fn.call(typeIndex[id].ctx, event);
			}
		}

		if (propagate) {
			// propagate the event to parents (set with addEventParent)
			this._propagateEvent(event);
		}

		return this;
	},

	listens: function (type, propagate) {
		var events = this._events;

		if (events && (events[type] || events[type + '_len'])) { return true; }

		if (propagate) {
			// also check parents for listeners if event propagates
			for (var id in this._eventParents) {
				if (this._eventParents[id].listens(type, propagate)) { return true; }
			}
		}
		return false;
	},

	once: function (types, fn, context) {

		if (typeof types === 'object') {
			for (var type in types) {
				this.once(type, types[type], fn);
			}
			return this;
		}

		var handler = L.bind(function () {
			this
			    .off(types, fn, context)
			    .off(types, handler, context);
		}, this);

		// add a listener that's executed once and removed after that
		return this
		    .on(types, fn, context)
		    .on(types, handler, context);
	},

	// adds a parent to propagate events to (when you fire with true as a 3rd argument)
	addEventParent: function (obj) {
		this._eventParents = this._eventParents || {};
		this._eventParents[L.stamp(obj)] = obj;
		return this;
	},

	removeEventParent: function (obj) {
		if (this._eventParents) {
			delete this._eventParents[L.stamp(obj)];
		}
		return this;
	},

	_propagateEvent: function (e) {
		for (var id in this._eventParents) {
			this._eventParents[id].fire(e.type, L.extend({layer: e.target}, e), true);
		}
	}
});

var proto = L.Evented.prototype;

// aliases; we should ditch those eventually
proto.addEventListener = proto.on;
proto.removeEventListener = proto.clearAllEventListeners = proto.off;
proto.addOneTimeEventListener = proto.once;
proto.fireEvent = proto.fire;
proto.hasEventListeners = proto.listens;

L.Mixin = {Events: proto};



/*
 * L.Browser handles different browser and feature detections for internal Leaflet use.
 */

(function () {

	var ua = navigator.userAgent.toLowerCase(),
	    doc = document.documentElement,

	    ie = 'ActiveXObject' in window,

	    webkit    = ua.indexOf('webkit') !== -1,
	    phantomjs = ua.indexOf('phantom') !== -1,
	    android23 = ua.search('android [23]') !== -1,
	    chrome    = ua.indexOf('chrome') !== -1,
	    gecko     = ua.indexOf('gecko') !== -1  && !webkit && !window.opera && !ie,

	    mobile = typeof orientation !== 'undefined' || ua.indexOf('mobile') !== -1,
	    msPointer = !window.PointerEvent && window.MSPointerEvent,
	    pointer = (window.PointerEvent && navigator.pointerEnabled) || msPointer,

	    ie3d = ie && ('transition' in doc.style),
	    webkit3d = ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()) && !android23,
	    gecko3d = 'MozPerspective' in doc.style,
	    opera12 = 'OTransition' in doc.style;

	var touch = !window.L_NO_TOUCH && !phantomjs && (pointer || 'ontouchstart' in window ||
			(window.DocumentTouch && document instanceof window.DocumentTouch));

	L.Browser = {
		ie: ie,
		ielt9: ie && !document.addEventListener,
		webkit: webkit,
		gecko: gecko,
		android: ua.indexOf('android') !== -1,
		android23: android23,
		chrome: chrome,
		safari: !chrome && ua.indexOf('safari') !== -1,

		ie3d: ie3d,
		webkit3d: webkit3d,
		gecko3d: gecko3d,
		opera12: opera12,
		any3d: !window.L_DISABLE_3D && (ie3d || webkit3d || gecko3d) && !opera12 && !phantomjs,

		mobile: mobile,
		mobileWebkit: mobile && webkit,
		mobileWebkit3d: mobile && webkit3d,
		mobileOpera: mobile && window.opera,
		mobileGecko: mobile && gecko,

		touch: !!touch,
		msPointer: !!msPointer,
		pointer: !!pointer,

		retina: (window.devicePixelRatio || (window.screen.deviceXDPI / window.screen.logicalXDPI)) > 1
	};

}());



/*
 * L.Point represents a point with x and y coordinates.
 */

L.Point = function (x, y, round) {
	this.x = (round ? Math.round(x) : x);
	this.y = (round ? Math.round(y) : y);
};

L.Point.prototype = {

	clone: function () {
		return new L.Point(this.x, this.y);
	},

	// non-destructive, returns a new point
	add: function (point) {
		return this.clone()._add(L.point(point));
	},

	// destructive, used directly for performance in situations where it's safe to modify existing point
	_add: function (point) {
		this.x += point.x;
		this.y += point.y;
		return this;
	},

	subtract: function (point) {
		return this.clone()._subtract(L.point(point));
	},

	_subtract: function (point) {
		this.x -= point.x;
		this.y -= point.y;
		return this;
	},

	divideBy: function (num) {
		return this.clone()._divideBy(num);
	},

	_divideBy: function (num) {
		this.x /= num;
		this.y /= num;
		return this;
	},

	multiplyBy: function (num) {
		return this.clone()._multiplyBy(num);
	},

	_multiplyBy: function (num) {
		this.x *= num;
		this.y *= num;
		return this;
	},

	scaleBy: function (point) {
		return new L.Point(this.x * point.x, this.y * point.y);
	},

	unscaleBy: function (point) {
		return new L.Point(this.x / point.x, this.y / point.y);
	},

	round: function () {
		return this.clone()._round();
	},

	_round: function () {
		this.x = Math.round(this.x);
		this.y = Math.round(this.y);
		return this;
	},

	floor: function () {
		return this.clone()._floor();
	},

	_floor: function () {
		this.x = Math.floor(this.x);
		this.y = Math.floor(this.y);
		return this;
	},

	ceil: function () {
		return this.clone()._ceil();
	},

	_ceil: function () {
		this.x = Math.ceil(this.x);
		this.y = Math.ceil(this.y);
		return this;
	},

	distanceTo: function (point) {
		point = L.point(point);

		var x = point.x - this.x,
		    y = point.y - this.y;

		return Math.sqrt(x * x + y * y);
	},

	equals: function (point) {
		point = L.point(point);

		return point.x === this.x &&
		       point.y === this.y;
	},

	contains: function (point) {
		point = L.point(point);

		return Math.abs(point.x) <= Math.abs(this.x) &&
		       Math.abs(point.y) <= Math.abs(this.y);
	},

	toString: function () {
		return 'Point(' +
		        L.Util.formatNum(this.x) + ', ' +
		        L.Util.formatNum(this.y) + ')';
	}
};

L.point = function (x, y, round) {
	if (x instanceof L.Point) {
		return x;
	}
	if (L.Util.isArray(x)) {
		return new L.Point(x[0], x[1]);
	}
	if (x === undefined || x === null) {
		return x;
	}
	return new L.Point(x, y, round);
};



/*
 * L.Bounds represents a rectangular area on the screen in pixel coordinates.
 */

L.Bounds = function (a, b) { // (Point, Point) or Point[]
	if (!a) { return; }

	var points = b ? [a, b] : a;

	for (var i = 0, len = points.length; i < len; i++) {
		this.extend(points[i]);
	}
};

L.Bounds.prototype = {
	// extend the bounds to contain the given point
	extend: function (point) { // (Point)
		point = L.point(point);

		if (!this.min && !this.max) {
			this.min = point.clone();
			this.max = point.clone();
		} else {
			this.min.x = Math.min(point.x, this.min.x);
			this.max.x = Math.max(point.x, this.max.x);
			this.min.y = Math.min(point.y, this.min.y);
			this.max.y = Math.max(point.y, this.max.y);
		}
		return this;
	},

	getCenter: function (round) { // (Boolean) -> Point
		return new L.Point(
		        (this.min.x + this.max.x) / 2,
		        (this.min.y + this.max.y) / 2, round);
	},

	getBottomLeft: function () { // -> Point
		return new L.Point(this.min.x, this.max.y);
	},

	getTopRight: function () { // -> Point
		return new L.Point(this.max.x, this.min.y);
	},

	getSize: function () {
		return this.max.subtract(this.min);
	},

	contains: function (obj) { // (Bounds) or (Point) -> Boolean
		var min, max;

		if (typeof obj[0] === 'number' || obj instanceof L.Point) {
			obj = L.point(obj);
		} else {
			obj = L.bounds(obj);
		}

		if (obj instanceof L.Bounds) {
			min = obj.min;
			max = obj.max;
		} else {
			min = max = obj;
		}

		return (min.x >= this.min.x) &&
		       (max.x <= this.max.x) &&
		       (min.y >= this.min.y) &&
		       (max.y <= this.max.y);
	},

	intersects: function (bounds) { // (Bounds) -> Boolean
		bounds = L.bounds(bounds);

		var min = this.min,
		    max = this.max,
		    min2 = bounds.min,
		    max2 = bounds.max,
		    xIntersects = (max2.x >= min.x) && (min2.x <= max.x),
		    yIntersects = (max2.y >= min.y) && (min2.y <= max.y);

		return xIntersects && yIntersects;
	},

	overlaps: function (bounds) { // (Bounds) -> Boolean
		bounds = L.bounds(bounds);

		var min = this.min,
		    max = this.max,
		    min2 = bounds.min,
		    max2 = bounds.max,
		    xOverlaps = (max2.x > min.x) && (min2.x < max.x),
		    yOverlaps = (max2.y > min.y) && (min2.y < max.y);

		return xOverlaps && yOverlaps;
	},

	isValid: function () {
		return !!(this.min && this.max);
	}
};

L.bounds = function (a, b) { // (Bounds) or (Point, Point) or (Point[])
	if (!a || a instanceof L.Bounds) {
		return a;
	}
	return new L.Bounds(a, b);
};



/*
 * L.Transformation is an utility class to perform simple point transformations through a 2d-matrix.
 */

L.Transformation = function (a, b, c, d) {
	this._a = a;
	this._b = b;
	this._c = c;
	this._d = d;
};

L.Transformation.prototype = {
	transform: function (point, scale) { // (Point, Number) -> Point
		return this._transform(point.clone(), scale);
	},

	// destructive transform (faster)
	_transform: function (point, scale) {
		scale = scale || 1;
		point.x = scale * (this._a * point.x + this._b);
		point.y = scale * (this._c * point.y + this._d);
		return point;
	},

	untransform: function (point, scale) {
		scale = scale || 1;
		return new L.Point(
		        (point.x / scale - this._b) / this._a,
		        (point.y / scale - this._d) / this._c);
	}
};



/*
 * L.DomUtil contains various utility functions for working with DOM.
 */

L.DomUtil = {
	get: function (id) {
		return typeof id === 'string' ? document.getElementById(id) : id;
	},

	getStyle: function (el, style) {

		var value = el.style[style] || (el.currentStyle && el.currentStyle[style]);

		if ((!value || value === 'auto') && document.defaultView) {
			var css = document.defaultView.getComputedStyle(el, null);
			value = css ? css[style] : null;
		}

		return value === 'auto' ? null : value;
	},

	create: function (tagName, className, container) {

		var el = document.createElement(tagName);
		el.className = className;

		if (container) {
			container.appendChild(el);
		}

		return el;
	},

	remove: function (el) {
		var parent = el.parentNode;
		if (parent) {
			parent.removeChild(el);
		}
	},

	empty: function (el) {
		while (el.firstChild) {
			el.removeChild(el.firstChild);
		}
	},

	toFront: function (el) {
		el.parentNode.appendChild(el);
	},

	toBack: function (el) {
		var parent = el.parentNode;
		parent.insertBefore(el, parent.firstChild);
	},

	hasClass: function (el, name) {
		if (el.classList !== undefined) {
			return el.classList.contains(name);
		}
		var className = L.DomUtil.getClass(el);
		return className.length > 0 && new RegExp('(^|\\s)' + name + '(\\s|$)').test(className);
	},

	addClass: function (el, name) {
		if (el.classList !== undefined) {
			var classes = L.Util.splitWords(name);
			for (var i = 0, len = classes.length; i < len; i++) {
				el.classList.add(classes[i]);
			}
		} else if (!L.DomUtil.hasClass(el, name)) {
			var className = L.DomUtil.getClass(el);
			L.DomUtil.setClass(el, (className ? className + ' ' : '') + name);
		}
	},

	removeClass: function (el, name) {
		if (el.classList !== undefined) {
			el.classList.remove(name);
		} else {
			L.DomUtil.setClass(el, L.Util.trim((' ' + L.DomUtil.getClass(el) + ' ').replace(' ' + name + ' ', ' ')));
		}
	},

	setClass: function (el, name) {
		if (el.className.baseVal === undefined) {
			el.className = name;
		} else {
			// in case of SVG element
			el.className.baseVal = name;
		}
	},

	getClass: function (el) {
		return el.className.baseVal === undefined ? el.className : el.className.baseVal;
	},

	setOpacity: function (el, value) {

		if ('opacity' in el.style) {
			el.style.opacity = value;

		} else if ('filter' in el.style) {
			L.DomUtil._setOpacityIE(el, value);
		}
	},

	_setOpacityIE: function (el, value) {
		var filter = false,
		    filterName = 'DXImageTransform.Microsoft.Alpha';

		// filters collection throws an error if we try to retrieve a filter that doesn't exist
		try {
			filter = el.filters.item(filterName);
		} catch (e) {
			// don't set opacity to 1 if we haven't already set an opacity,
			// it isn't needed and breaks transparent pngs.
			if (value === 1) { return; }
		}

		value = Math.round(value * 100);

		if (filter) {
			filter.Enabled = (value !== 100);
			filter.Opacity = value;
		} else {
			el.style.filter += ' progid:' + filterName + '(opacity=' + value + ')';
		}
	},

	testProp: function (props) {

		var style = document.documentElement.style;

		for (var i = 0; i < props.length; i++) {
			if (props[i] in style) {
				return props[i];
			}
		}
		return false;
	},

	setTransform: function (el, offset, scale) {
		var pos = offset || new L.Point(0, 0);

		el.style[L.DomUtil.TRANSFORM] =
			(L.Browser.ie3d ?
				'translate(' + pos.x + 'px,' + pos.y + 'px)' :
				'translate3d(' + pos.x + 'px,' + pos.y + 'px,0)') +
			(scale ? ' scale(' + scale + ')' : '');
	},

	setPosition: function (el, point) { // (HTMLElement, Point[, Boolean])

		/*eslint-disable */
		el._leaflet_pos = point;
		/*eslint-enable */

		if (L.Browser.any3d) {
			L.DomUtil.setTransform(el, point);
		} else {
			el.style.left = point.x + 'px';
			el.style.top = point.y + 'px';
		}
	},

	getPosition: function (el) {
		// this method is only used for elements previously positioned using setPosition,
		// so it's safe to cache the position for performance

		return el._leaflet_pos;
	}
};


(function () {
	// prefix style property names

	L.DomUtil.TRANSFORM = L.DomUtil.testProp(
			['transform', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform']);


	// webkitTransition comes first because some browser versions that drop vendor prefix don't do
	// the same for the transitionend event, in particular the Android 4.1 stock browser

	var transition = L.DomUtil.TRANSITION = L.DomUtil.testProp(
			['webkitTransition', 'transition', 'OTransition', 'MozTransition', 'msTransition']);

	L.DomUtil.TRANSITION_END =
			transition === 'webkitTransition' || transition === 'OTransition' ? transition + 'End' : 'transitionend';


	if ('onselectstart' in document) {
		L.DomUtil.disableTextSelection = function () {
			L.DomEvent.on(window, 'selectstart', L.DomEvent.preventDefault);
		};
		L.DomUtil.enableTextSelection = function () {
			L.DomEvent.off(window, 'selectstart', L.DomEvent.preventDefault);
		};

	} else {
		var userSelectProperty = L.DomUtil.testProp(
			['userSelect', 'WebkitUserSelect', 'OUserSelect', 'MozUserSelect', 'msUserSelect']);

		L.DomUtil.disableTextSelection = function () {
			if (userSelectProperty) {
				var style = document.documentElement.style;
				this._userSelect = style[userSelectProperty];
				style[userSelectProperty] = 'none';
			}
		};
		L.DomUtil.enableTextSelection = function () {
			if (userSelectProperty) {
				document.documentElement.style[userSelectProperty] = this._userSelect;
				delete this._userSelect;
			}
		};
	}

	L.DomUtil.disableImageDrag = function () {
		L.DomEvent.on(window, 'dragstart', L.DomEvent.preventDefault);
	};
	L.DomUtil.enableImageDrag = function () {
		L.DomEvent.off(window, 'dragstart', L.DomEvent.preventDefault);
	};

	L.DomUtil.preventOutline = function (element) {
		while (element.tabIndex === -1) {
			element = element.parentNode;
		}
		if (!element || !element.style) { return; }
		L.DomUtil.restoreOutline();
		this._outlineElement = element;
		this._outlineStyle = element.style.outline;
		element.style.outline = 'none';
		L.DomEvent.on(window, 'keydown', L.DomUtil.restoreOutline, this);
	};
	L.DomUtil.restoreOutline = function () {
		if (!this._outlineElement) { return; }
		this._outlineElement.style.outline = this._outlineStyle;
		delete this._outlineElement;
		delete this._outlineStyle;
		L.DomEvent.off(window, 'keydown', L.DomUtil.restoreOutline, this);
	};
})();



/*
 * L.LatLng represents a geographical point with latitude and longitude coordinates.
 */

L.LatLng = function (lat, lng, alt) {
	if (isNaN(lat) || isNaN(lng)) {
		throw new Error('Invalid LatLng object: (' + lat + ', ' + lng + ')');
	}

	this.lat = +lat;
	this.lng = +lng;

	if (alt !== undefined) {
		this.alt = +alt;
	}
};

L.LatLng.prototype = {
	equals: function (obj, maxMargin) {
		if (!obj) { return false; }

		obj = L.latLng(obj);

		var margin = Math.max(
		        Math.abs(this.lat - obj.lat),
		        Math.abs(this.lng - obj.lng));

		return margin <= (maxMargin === undefined ? 1.0E-9 : maxMargin);
	},

	toString: function (precision) {
		return 'LatLng(' +
		        L.Util.formatNum(this.lat, precision) + ', ' +
		        L.Util.formatNum(this.lng, precision) + ')';
	},

	distanceTo: function (other) {
		return L.CRS.Earth.distance(this, L.latLng(other));
	},

	wrap: function () {
		return L.CRS.Earth.wrapLatLng(this);
	},

	toBounds: function (sizeInMeters) {
		var latAccuracy = 180 * sizeInMeters / 40075017,
		    lngAccuracy = latAccuracy / Math.cos((Math.PI / 180) * this.lat);

		return L.latLngBounds(
		        [this.lat - latAccuracy, this.lng - lngAccuracy],
		        [this.lat + latAccuracy, this.lng + lngAccuracy]);
	},

	clone: function () {
		return new L.LatLng(this.lat, this.lng, this.alt);
	}
};


// constructs LatLng with different signatures
// (LatLng) or ([Number, Number]) or (Number, Number) or (Object)

L.latLng = function (a, b, c) {
	if (a instanceof L.LatLng) {
		return a;
	}
	if (L.Util.isArray(a) && typeof a[0] !== 'object') {
		if (a.length === 3) {
			return new L.LatLng(a[0], a[1], a[2]);
		}
		if (a.length === 2) {
			return new L.LatLng(a[0], a[1]);
		}
		return null;
	}
	if (a === undefined || a === null) {
		return a;
	}
	if (typeof a === 'object' && 'lat' in a) {
		return new L.LatLng(a.lat, 'lng' in a ? a.lng : a.lon, a.alt);
	}
	if (b === undefined) {
		return null;
	}
	return new L.LatLng(a, b, c);
};



/*
 * L.LatLngBounds represents a rectangular area on the map in geographical coordinates.
 */

L.LatLngBounds = function (southWest, northEast) { // (LatLng, LatLng) or (LatLng[])
	if (!southWest) { return; }

	var latlngs = northEast ? [southWest, northEast] : southWest;

	for (var i = 0, len = latlngs.length; i < len; i++) {
		this.extend(latlngs[i]);
	}
};

L.LatLngBounds.prototype = {

	// extend the bounds to contain the given point or bounds
	extend: function (obj) { // (LatLng) or (LatLngBounds)
		var sw = this._southWest,
		    ne = this._northEast,
		    sw2, ne2;

		if (obj instanceof L.LatLng) {
			sw2 = obj;
			ne2 = obj;

		} else if (obj instanceof L.LatLngBounds) {
			sw2 = obj._southWest;
			ne2 = obj._northEast;

			if (!sw2 || !ne2) { return this; }

		} else {
			return obj ? this.extend(L.latLng(obj) || L.latLngBounds(obj)) : this;
		}

		if (!sw && !ne) {
			this._southWest = new L.LatLng(sw2.lat, sw2.lng);
			this._northEast = new L.LatLng(ne2.lat, ne2.lng);
		} else {
			sw.lat = Math.min(sw2.lat, sw.lat);
			sw.lng = Math.min(sw2.lng, sw.lng);
			ne.lat = Math.max(ne2.lat, ne.lat);
			ne.lng = Math.max(ne2.lng, ne.lng);
		}

		return this;
	},

	// extend the bounds by a percentage
	pad: function (bufferRatio) { // (Number) -> LatLngBounds
		var sw = this._southWest,
		    ne = this._northEast,
		    heightBuffer = Math.abs(sw.lat - ne.lat) * bufferRatio,
		    widthBuffer = Math.abs(sw.lng - ne.lng) * bufferRatio;

		return new L.LatLngBounds(
		        new L.LatLng(sw.lat - heightBuffer, sw.lng - widthBuffer),
		        new L.LatLng(ne.lat + heightBuffer, ne.lng + widthBuffer));
	},

	getCenter: function () { // -> LatLng
		return new L.LatLng(
		        (this._southWest.lat + this._northEast.lat) / 2,
		        (this._southWest.lng + this._northEast.lng) / 2);
	},

	getSouthWest: function () {
		return this._southWest;
	},

	getNorthEast: function () {
		return this._northEast;
	},

	getNorthWest: function () {
		return new L.LatLng(this.getNorth(), this.getWest());
	},

	getSouthEast: function () {
		return new L.LatLng(this.getSouth(), this.getEast());
	},

	getWest: function () {
		return this._southWest.lng;
	},

	getSouth: function () {
		return this._southWest.lat;
	},

	getEast: function () {
		return this._northEast.lng;
	},

	getNorth: function () {
		return this._northEast.lat;
	},

	contains: function (obj) { // (LatLngBounds) or (LatLng) -> Boolean
		if (typeof obj[0] === 'number' || obj instanceof L.LatLng) {
			obj = L.latLng(obj);
		} else {
			obj = L.latLngBounds(obj);
		}

		var sw = this._southWest,
		    ne = this._northEast,
		    sw2, ne2;

		if (obj instanceof L.LatLngBounds) {
			sw2 = obj.getSouthWest();
			ne2 = obj.getNorthEast();
		} else {
			sw2 = ne2 = obj;
		}

		return (sw2.lat >= sw.lat) && (ne2.lat <= ne.lat) &&
		       (sw2.lng >= sw.lng) && (ne2.lng <= ne.lng);
	},

	intersects: function (bounds) { // (LatLngBounds) -> Boolean
		bounds = L.latLngBounds(bounds);

		var sw = this._southWest,
		    ne = this._northEast,
		    sw2 = bounds.getSouthWest(),
		    ne2 = bounds.getNorthEast(),

		    latIntersects = (ne2.lat >= sw.lat) && (sw2.lat <= ne.lat),
		    lngIntersects = (ne2.lng >= sw.lng) && (sw2.lng <= ne.lng);

		return latIntersects && lngIntersects;
	},

	overlaps: function (bounds) { // (LatLngBounds) -> Boolean
		bounds = L.latLngBounds(bounds);

		var sw = this._southWest,
		    ne = this._northEast,
		    sw2 = bounds.getSouthWest(),
		    ne2 = bounds.getNorthEast(),

		    latOverlaps = (ne2.lat > sw.lat) && (sw2.lat < ne.lat),
		    lngOverlaps = (ne2.lng > sw.lng) && (sw2.lng < ne.lng);

		return latOverlaps && lngOverlaps;
	},

	toBBoxString: function () {
		return [this.getWest(), this.getSouth(), this.getEast(), this.getNorth()].join(',');
	},

	equals: function (bounds) { // (LatLngBounds)
		if (!bounds) { return false; }

		bounds = L.latLngBounds(bounds);

		return this._southWest.equals(bounds.getSouthWest()) &&
		       this._northEast.equals(bounds.getNorthEast());
	},

	isValid: function () {
		return !!(this._southWest && this._northEast);
	}
};

// TODO International date line?

L.latLngBounds = function (a, b) { // (LatLngBounds) or (LatLng, LatLng)
	if (!a || a instanceof L.LatLngBounds) {
		return a;
	}
	return new L.LatLngBounds(a, b);
};



/*
 * Simple equirectangular (Plate Carree) projection, used by CRS like EPSG:4326 and Simple.
 */

L.Projection = {};

L.Projection.LonLat = {
	project: function (latlng) {
		return new L.Point(latlng.lng, latlng.lat);
	},

	unproject: function (point) {
		return new L.LatLng(point.y, point.x);
	},

	bounds: L.bounds([-180, -90], [180, 90])
};



/*
 * Spherical Mercator is the most popular map projection, used by EPSG:3857 CRS used by default.
 */

L.Projection.SphericalMercator = {

	R: 6378137,
	MAX_LATITUDE: 85.0511287798,

	project: function (latlng) {
		var d = Math.PI / 180,
		    max = this.MAX_LATITUDE,
		    lat = Math.max(Math.min(max, latlng.lat), -max),
		    sin = Math.sin(lat * d);

		return new L.Point(
				this.R * latlng.lng * d,
				this.R * Math.log((1 + sin) / (1 - sin)) / 2);
	},

	unproject: function (point) {
		var d = 180 / Math.PI;

		return new L.LatLng(
			(2 * Math.atan(Math.exp(point.y / this.R)) - (Math.PI / 2)) * d,
			point.x * d / this.R);
	},

	bounds: (function () {
		var d = 6378137 * Math.PI;
		return L.bounds([-d, -d], [d, d]);
	})()
};



/*
 * L.CRS is the base object for all defined CRS (Coordinate Reference Systems) in Leaflet.
 */

L.CRS = {
	// converts geo coords to pixel ones
	latLngToPoint: function (latlng, zoom) {
		var projectedPoint = this.projection.project(latlng),
		    scale = this.scale(zoom);

		return this.transformation._transform(projectedPoint, scale);
	},

	// converts pixel coords to geo coords
	pointToLatLng: function (point, zoom) {
		var scale = this.scale(zoom),
		    untransformedPoint = this.transformation.untransform(point, scale);

		return this.projection.unproject(untransformedPoint);
	},

	// converts geo coords to projection-specific coords (e.g. in meters)
	project: function (latlng) {
		return this.projection.project(latlng);
	},

	// converts projected coords to geo coords
	unproject: function (point) {
		return this.projection.unproject(point);
	},

	// defines how the world scales with zoom
	scale: function (zoom) {
		return 256 * Math.pow(2, zoom);
	},

	zoom: function (scale) {
		return Math.log(scale / 256) / Math.LN2;
	},

	// returns the bounds of the world in projected coords if applicable
	getProjectedBounds: function (zoom) {
		if (this.infinite) { return null; }

		var b = this.projection.bounds,
		    s = this.scale(zoom),
		    min = this.transformation.transform(b.min, s),
		    max = this.transformation.transform(b.max, s);

		return L.bounds(min, max);
	},

	// whether a coordinate axis wraps in a given range (e.g. longitude from -180 to 180); depends on CRS
	// wrapLng: [min, max],
	// wrapLat: [min, max],

	// if true, the coordinate space will be unbounded (infinite in all directions)
	// infinite: false,

	// wraps geo coords in certain ranges if applicable
	wrapLatLng: function (latlng) {
		var lng = this.wrapLng ? L.Util.wrapNum(latlng.lng, this.wrapLng, true) : latlng.lng,
		    lat = this.wrapLat ? L.Util.wrapNum(latlng.lat, this.wrapLat, true) : latlng.lat,
		    alt = latlng.alt;

		return L.latLng(lat, lng, alt);
	}
};



/*
 * A simple CRS that can be used for flat non-Earth maps like panoramas or game maps.
 */

L.CRS.Simple = L.extend({}, L.CRS, {
	projection: L.Projection.LonLat,
	transformation: new L.Transformation(1, 0, -1, 0),

	scale: function (zoom) {
		return Math.pow(2, zoom);
	},

	zoom: function (scale) {
		return Math.log(scale) / Math.LN2;
	},

	distance: function (latlng1, latlng2) {
		var dx = latlng2.lng - latlng1.lng,
		    dy = latlng2.lat - latlng1.lat;

		return Math.sqrt(dx * dx + dy * dy);
	},

	infinite: true
});



/*
 * L.CRS.Earth is the base class for all CRS representing Earth.
 */

L.CRS.Earth = L.extend({}, L.CRS, {
	wrapLng: [-180, 180],

	R: 6378137,

	// distance between two geographical points using spherical law of cosines approximation
	distance: function (latlng1, latlng2) {
		var rad = Math.PI / 180,
		    lat1 = latlng1.lat * rad,
		    lat2 = latlng2.lat * rad,
		    a = Math.sin(lat1) * Math.sin(lat2) +
		        Math.cos(lat1) * Math.cos(lat2) * Math.cos((latlng2.lng - latlng1.lng) * rad);

		return this.R * Math.acos(Math.min(a, 1));
	}
});



/*
 * L.CRS.EPSG3857 (Spherical Mercator) is the most common CRS for web mapping and is used by Leaflet by default.
 */

L.CRS.EPSG3857 = L.extend({}, L.CRS.Earth, {
	code: 'EPSG:3857',
	projection: L.Projection.SphericalMercator,

	transformation: (function () {
		var scale = 0.5 / (Math.PI * L.Projection.SphericalMercator.R);
		return new L.Transformation(scale, 0.5, -scale, 0.5);
	}())
});

L.CRS.EPSG900913 = L.extend({}, L.CRS.EPSG3857, {
	code: 'EPSG:900913'
});



/*
 * L.CRS.EPSG4326 is a CRS popular among advanced GIS specialists.
 */

L.CRS.EPSG4326 = L.extend({}, L.CRS.Earth, {
	code: 'EPSG:4326',
	projection: L.Projection.LonLat,
	transformation: new L.Transformation(1 / 180, 1, -1 / 180, 0.5)
});



/*
 * L.Map is the central class of the API - it is used to create a map.
 */

L.Map = L.Evented.extend({

	options: {
		crs: L.CRS.EPSG3857,

		/*
		center: LatLng,
		zoom: Number,
		layers: Array,
		*/

		fadeAnimation: true,
		trackResize: true,
		markerZoomAnimation: true,
		maxBoundsViscosity: 0.0,
		transform3DLimit: 8388608 // Precision limit of a 32-bit float
	},

	initialize: function (id, options) { // (HTMLElement or String, Object)
		options = L.setOptions(this, options);

		this._initContainer(id);
		this._initLayout();

		// hack for https://github.com/Leaflet/Leaflet/issues/1980
		this._onResize = L.bind(this._onResize, this);

		this._initEvents();

		if (options.maxBounds) {
			this.setMaxBounds(options.maxBounds);
		}

		if (options.zoom !== undefined) {
			this._zoom = this._limitZoom(options.zoom);
		}

		if (options.center && options.zoom !== undefined) {
			this.setView(L.latLng(options.center), options.zoom, {reset: true});
		}

		this._handlers = [];
		this._layers = {};
		this._zoomBoundLayers = {};
		this._sizeChanged = true;

		this.callInitHooks();

		this._addLayers(this.options.layers);
	},


	// public methods that modify map state

	// replaced by animation-powered implementation in Map.PanAnimation.js
	setView: function (center, zoom) {
		zoom = zoom === undefined ? this.getZoom() : zoom;
		this._resetView(L.latLng(center), zoom);
		return this;
	},

	setZoom: function (zoom, options) {
		if (!this._loaded) {
			this._zoom = zoom;
			return this;
		}
		return this.setView(this.getCenter(), zoom, {zoom: options});
	},

	zoomIn: function (delta, options) {
		return this.setZoom(this._zoom + (delta || 1), options);
	},

	zoomOut: function (delta, options) {
		return this.setZoom(this._zoom - (delta || 1), options);
	},

	setZoomAround: function (latlng, zoom, options) {
		var scale = this.getZoomScale(zoom),
		    viewHalf = this.getSize().divideBy(2),
		    containerPoint = latlng instanceof L.Point ? latlng : this.latLngToContainerPoint(latlng),

		    centerOffset = containerPoint.subtract(viewHalf).multiplyBy(1 - 1 / scale),
		    newCenter = this.containerPointToLatLng(viewHalf.add(centerOffset));

		return this.setView(newCenter, zoom, {zoom: options});
	},

	_getBoundsCenterZoom: function (bounds, options) {

		options = options || {};
		bounds = bounds.getBounds ? bounds.getBounds() : L.latLngBounds(bounds);

		var paddingTL = L.point(options.paddingTopLeft || options.padding || [0, 0]),
		    paddingBR = L.point(options.paddingBottomRight || options.padding || [0, 0]),

		    zoom = this.getBoundsZoom(bounds, false, paddingTL.add(paddingBR));

		zoom = options.maxZoom ? Math.min(options.maxZoom, zoom) : zoom;

		var paddingOffset = paddingBR.subtract(paddingTL).divideBy(2),

		    swPoint = this.project(bounds.getSouthWest(), zoom),
		    nePoint = this.project(bounds.getNorthEast(), zoom),
		    center = this.unproject(swPoint.add(nePoint).divideBy(2).add(paddingOffset), zoom);

		return {
			center: center,
			zoom: zoom
		};
	},

	fitBounds: function (bounds, options) {
		var target = this._getBoundsCenterZoom(bounds, options);
		return this.setView(target.center, target.zoom, options);
	},

	fitWorld: function (options) {
		return this.fitBounds([[-90, -180], [90, 180]], options);
	},

	panTo: function (center, options) { // (LatLng)
		return this.setView(center, this._zoom, {pan: options});
	},

	panBy: function (offset) { // (Point)
		// replaced with animated panBy in Map.PanAnimation.js
		this.fire('movestart');

		this._rawPanBy(L.point(offset));

		this.fire('move');
		return this.fire('moveend');
	},

	setMaxBounds: function (bounds) {
		bounds = L.latLngBounds(bounds);

		if (!bounds) {
			return this.off('moveend', this._panInsideMaxBounds);
		} else if (this.options.maxBounds) {
			this.off('moveend', this._panInsideMaxBounds);
		}

		this.options.maxBounds = bounds;

		if (this._loaded) {
			this._panInsideMaxBounds();
		}

		return this.on('moveend', this._panInsideMaxBounds);
	},

	setMinZoom: function (zoom) {
		this.options.minZoom = zoom;

		if (this._loaded && this.getZoom() < this.options.minZoom) {
			return this.setZoom(zoom);
		}

		return this;
	},

	setMaxZoom: function (zoom) {
		this.options.maxZoom = zoom;

		if (this._loaded && (this.getZoom() > this.options.maxZoom)) {
			return this.setZoom(zoom);
		}

		return this;
	},

	panInsideBounds: function (bounds, options) {
		this._enforcingBounds = true;
		var center = this.getCenter(),
		    newCenter = this._limitCenter(center, this._zoom, L.latLngBounds(bounds));

		if (center.equals(newCenter)) { return this; }

		this.panTo(newCenter, options);
		this._enforcingBounds = false;
		return this;
	},

	invalidateSize: function (options) {
		if (!this._loaded) { return this; }

		options = L.extend({
			animate: false,
			pan: true
		}, options === true ? {animate: true} : options);

		var oldSize = this.getSize();
		this._sizeChanged = true;
		this._lastCenter = null;

		var newSize = this.getSize(),
		    oldCenter = oldSize.divideBy(2).round(),
		    newCenter = newSize.divideBy(2).round(),
		    offset = oldCenter.subtract(newCenter);

		if (!offset.x && !offset.y) { return this; }

		if (options.animate && options.pan) {
			this.panBy(offset);

		} else {
			if (options.pan) {
				this._rawPanBy(offset);
			}

			this.fire('move');

			if (options.debounceMoveend) {
				clearTimeout(this._sizeTimer);
				this._sizeTimer = setTimeout(L.bind(this.fire, this, 'moveend'), 200);
			} else {
				this.fire('moveend');
			}
		}

		return this.fire('resize', {
			oldSize: oldSize,
			newSize: newSize
		});
	},

	stop: function () {
		L.Util.cancelAnimFrame(this._flyToFrame);
		if (this._panAnim) {
			this._panAnim.stop();
		}
		return this;
	},

	// TODO handler.addTo
	addHandler: function (name, HandlerClass) {
		if (!HandlerClass) { return this; }

		var handler = this[name] = new HandlerClass(this);

		this._handlers.push(handler);

		if (this.options[name]) {
			handler.enable();
		}

		return this;
	},

	remove: function () {

		this._initEvents(true);

		try {
			// throws error in IE6-8
			delete this._container._leaflet;
		} catch (e) {
			this._container._leaflet = undefined;
		}

		L.DomUtil.remove(this._mapPane);

		if (this._clearControlPos) {
			this._clearControlPos();
		}

		this._clearHandlers();

		if (this._loaded) {
			this.fire('unload');
		}

		for (var i in this._layers) {
			this._layers[i].remove();
		}

		return this;
	},

	createPane: function (name, container) {
		var className = 'leaflet-pane' + (name ? ' leaflet-' + name.replace('Pane', '') + '-pane' : ''),
		    pane = L.DomUtil.create('div', className, container || this._mapPane);

		if (name) {
			this._panes[name] = pane;
		}
		return pane;
	},


	// public methods for getting map state

	getCenter: function () { // (Boolean) -> LatLng
		this._checkIfLoaded();

		if (this._lastCenter && !this._moved()) {
			return this._lastCenter;
		}
		return this.layerPointToLatLng(this._getCenterLayerPoint());
	},

	getZoom: function () {
		return this._zoom;
	},

	getBounds: function () {
		var bounds = this.getPixelBounds(),
		    sw = this.unproject(bounds.getBottomLeft()),
		    ne = this.unproject(bounds.getTopRight());

		return new L.LatLngBounds(sw, ne);
	},

	getMinZoom: function () {
		return this.options.minZoom === undefined ? this._layersMinZoom || 0 : this.options.minZoom;
	},

	getMaxZoom: function () {
		return this.options.maxZoom === undefined ?
			(this._layersMaxZoom === undefined ? Infinity : this._layersMaxZoom) :
			this.options.maxZoom;
	},

	getBoundsZoom: function (bounds, inside, padding) { // (LatLngBounds[, Boolean, Point]) -> Number
		bounds = L.latLngBounds(bounds);

		var zoom = this.getMinZoom() - (inside ? 1 : 0),
		    maxZoom = this.getMaxZoom(),
		    size = this.getSize(),

		    nw = bounds.getNorthWest(),
		    se = bounds.getSouthEast(),

		    zoomNotFound = true,
		    boundsSize;

		padding = L.point(padding || [0, 0]);

		do {
			zoom++;
			boundsSize = this.project(se, zoom).subtract(this.project(nw, zoom)).add(padding).floor();
			zoomNotFound = !inside ? size.contains(boundsSize) : boundsSize.x < size.x || boundsSize.y < size.y;

		} while (zoomNotFound && zoom <= maxZoom);

		if (zoomNotFound && inside) {
			return null;
		}

		return inside ? zoom : zoom - 1;
	},

	getSize: function () {
		if (!this._size || this._sizeChanged) {
			this._size = new L.Point(
				this._container.clientWidth,
				this._container.clientHeight);

			this._sizeChanged = false;
		}
		return this._size.clone();
	},

	getPixelBounds: function (center, zoom) {
		var topLeftPoint = this._getTopLeftPoint(center, zoom);
		return new L.Bounds(topLeftPoint, topLeftPoint.add(this.getSize()));
	},

	getPixelOrigin: function () {
		this._checkIfLoaded();
		return this._pixelOrigin;
	},

	getPixelWorldBounds: function (zoom) {
		return th