https://www.gxlib.org.cn/js/leaflet.js

1/*
2 Leaflet, a JavaScript library for mobile-friendly interactive maps. http://leafletjs.com
3 (c) 2010-2013, Vladimir Agafonkin
4 (c) 2010-2011, CloudMade
5*/
6(function (window, document, undefined) {
7var oldL = window.L,
8    L = {};
9
10L.version = '0.7.3';
11
12// define Leaflet for Node module pattern loaders, including Browserify
13if (typeof module === 'object' && typeof module.exports === 'object') {
14	module.exports = L;
15
16// define Leaflet as an AMD module
17} else if (typeof define === 'function' && define.amd) {
18	define(L);
19}
20
21// define Leaflet as a global L variable, saving the original L to restore later if needed
22
23L.noConflict = function () {
24	window.L = oldL;
25	return this;
26};
27
28window.L = L;
29
30
31/*
32 * L.Util contains various utility functions used throughout Leaflet code.
33 */
34
35L.Util = {
36	extend: function (dest) { // (Object[, Object, ...]) ->
37		var sources = Array.prototype.slice.call(arguments, 1),
38		    i, j, len, src;
39
40		for (j = 0, len = sources.length; j < len; j++) {
41			src = sources[j] || {};
42			for (i in src) {
43				if (src.hasOwnProperty(i)) {
44					dest[i] = src[i];
45				}
46			}
47		}
48		return dest;
49	},
50
51	bind: function (fn, obj) { // (Function, Object) -> Function
52		var args = arguments.length > 2 ? Array.prototype.slice.call(arguments, 2) : null;
53		return function () {
54			return fn.apply(obj, args || arguments);
55		};
56	},
57
58	stamp: (function () {
59		var lastId = 0,
60		    key = '_leaflet_id';
61		return function (obj) {
62			obj[key] = obj[key] || ++lastId;
63			return obj[key];
64		};
65	}()),
66
67	invokeEach: function (obj, method, context) {
68		var i, args;
69
70		if (typeof obj === 'object') {
71			args = Array.prototype.slice.call(arguments, 3);
72
73			for (i in obj) {
74				method.apply(context, [i, obj[i]].concat(args));
75			}
76			return true;
77		}
78
79		return false;
80	},
81
82	limitExecByInterval: function (fn, time, context) {
83		var lock, execOnUnlock;
84
85		return function wrapperFn() {
86			var args = arguments;
87
88			if (lock) {
89				execOnUnlock = true;
90				return;
91			}
92
93			lock = true;
94
95			setTimeout(function () {
96				lock = false;
97
98				if (execOnUnlock) {
99					wrapperFn.apply(context, args);
100					execOnUnlock = false;
101				}
102			}, time);
103
104			fn.apply(context, args);
105		};
106	},
107
108	falseFn: function () {
109		return false;
110	},
111
112	formatNum: function (num, digits) {
113		var pow = Math.pow(10, digits || 5);
114		return Math.round(num * pow) / pow;
115	},
116
117	trim: function (str) {
118		return str.trim ? str.trim() : str.replace(/^\s+|\s+$/g, '');
119	},
120
121	splitWords: function (str) {
122		return L.Util.trim(str).split(/\s+/);
123	},
124
125	setOptions: function (obj, options) {
126		obj.options = L.extend({}, obj.options, options);
127		return obj.options;
128	},
129
130	getParamString: function (obj, existingUrl, uppercase) {
131		var params = [];
132		for (var i in obj) {
133			params.push(encodeURIComponent(uppercase ? i.toUpperCase() : i) + '=' + encodeURIComponent(obj[i]));
134		}
135		return ((!existingUrl || existingUrl.indexOf('?') === -1) ? '?' : '&') + params.join('&');
136	},
137	template: function (str, data) {
138		return str.replace(/\{ *([\w_]+) *\}/g, function (str, key) {
139			var value = data[key];
140			if (value === undefined) {
141				throw new Error('No value provided for variable ' + str);
142			} else if (typeof value === 'function') {
143				value = value(data);
144			}
145			return value;
146		});
147	},
148
149	isArray: Array.isArray || function (obj) {
150		return (Object.prototype.toString.call(obj) === '[object Array]');
151	},
152
153	emptyImageUrl: 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs='
154};
155
156(function () {
157
158	// inspired by http://paulirish.com/2011/requestanimationframe-for-smart-animating/
159
160	function getPrefixed(name) {
161		var i, fn,
162		    prefixes = ['webkit', 'moz', 'o', 'ms'];
163
164		for (i = 0; i < prefixes.length && !fn; i++) {
165			fn = window[prefixes[i] + name];
166		}
167
168		return fn;
169	}
170
171	var lastTime = 0;
172
173	function timeoutDefer(fn) {
174		var time = +new Date(),
175		    timeToCall = Math.max(0, 16 - (time - lastTime));
176
177		lastTime = time + timeToCall;
178		return window.setTimeout(fn, timeToCall);
179	}
180
181	var requestFn = window.requestAnimationFrame ||
182	        getPrefixed('RequestAnimationFrame') || timeoutDefer;
183
184	var cancelFn = window.cancelAnimationFrame ||
185	        getPrefixed('CancelAnimationFrame') ||
186	        getPrefixed('CancelRequestAnimationFrame') ||
187	        function (id) { window.clearTimeout(id); };
188
189
190	L.Util.requestAnimFrame = function (fn, context, immediate, element) {
191		fn = L.bind(fn, context);
192
193		if (immediate && requestFn === timeoutDefer) {
194			fn();
195		} else {
196			return requestFn.call(window, fn, element);
197		}
198	};
199
200	L.Util.cancelAnimFrame = function (id) {
201		if (id) {
202			cancelFn.call(window, id);
203		}
204	};
205
206}());
207
208// shortcuts for most used utility functions
209L.extend = L.Util.extend;
210L.bind = L.Util.bind;
211L.stamp = L.Util.stamp;
212L.setOptions = L.Util.setOptions;
213
214
215/*
216 * L.Class powers the OOP facilities of the library.
217 * Thanks to John Resig and Dean Edwards for inspiration!
218 */
219
220L.Class = function () {};
221
222L.Class.extend = function (props) {
223
224	// extended class with the new prototype
225	var NewClass = function () {
226
227		// call the constructor
228		if (this.initialize) {
229			this.initialize.apply(this, arguments);
230		}
231

232		// call all constructor hooks
233		if (this._initHooks) {
234			this.callInitHooks();
235		}
236	};
237
238	// instantiate class without calling constructor
239	var F = function () {};
240	F.prototype = this.prototype;
241
242	var proto = new F();
243	proto.constructor = NewClass;
244
245	NewClass.prototype = proto;
246
247	//inherit parent's statics
248	for (var i in this) {
249		if (this.hasOwnProperty(i) && i !== 'prototype') {
250			NewClass[i] = this[i];
251		}
252	}
253
254	// mix static properties into the class
255	if (props.statics) {
256		L.extend(NewClass, props.statics);
257		delete props.statics;
258	}
259
260	// mix includes into the prototype
261	if (props.includes) {
262		L.Util.extend.apply(null, [proto].concat(props.includes));
263		delete props.includes;
264	}
265
266	// merge options
267	if (props.options && proto.options) {
268		props.options = L.extend({}, proto.options, props.options);
269	}
270
271	// mix given properties into the prototype
272	L.extend(proto, props);
273
274	proto._initHooks = [];
275
276	var parent = this;
277	// jshint camelcase: false
278	NewClass.__super__ = parent.prototype;
279
280	// add method for calling all hooks
281	proto.callInitHooks = function () {
282
283		if (this._initHooksCalled) { return; }
284
285		if (parent.prototype.callInitHooks) {
286			parent.prototype.callInitHooks.call(this);
287		}
288
289		this._initHooksCalled = true;
290
291		for (var i = 0, len = proto._initHooks.length; i < len; i++) {
292			proto._initHooks[i].call(this);
293		}
294	};
295
296	return NewClass;
297};
298
299
300// method for adding properties to prototype
301L.Class.include = function (props) {
302	L.extend(this.prototype, props);
303};
304
305// merge new default options to the Class
306L.Class.mergeOptions = function (options) {
307	L.extend(this.prototype.options, options);
308};
309
310// add a constructor hook
311L.Class.addInitHook = function (fn) { // (Function) || (String, args...)
312	var args = Array.prototype.slice.call(arguments, 1);
313
314	var init = typeof fn === 'function' ? fn : function () {
315		this[fn].apply(this, args);
316	};
317
318	this.prototype._initHooks = this.prototype._initHooks || [];
319	this.prototype._initHooks.push(init);
320};
321
322
323/*
324 * L.Mixin.Events is used to add custom events functionality to Leaflet classes.
325 */
326
327var eventsKey = '_leaflet_events';
328
329L.Mixin = {};
330
331L.Mixin.Events = {
332
333	addEventListener: function (types, fn, context) { // (String, Function[, Object]) or (Object[, Object])
334
335		// types can be a map of types/handlers
336		if (L.Util.invokeEach(types, this.addEventListener, this, fn, context)) { return this; }
337
338		var events = this[eventsKey] = this[eventsKey] || {},
339		    contextId = context && context !== this && L.stamp(context),
340		    i, len, event, type, indexKey, indexLenKey, typeIndex;
341
342		// types can be a string of space-separated words
343		types = L.Util.splitWords(types);
344
345		for (i = 0, len = types.length; i < len; i++) {
346			event = {
347				action: fn,
348				context: context || this
349			};
350			type = types[i];
351
352			if (contextId) {
353				// store listeners of a particular context in a separate hash (if it has an id)
354				// gives a major performance boost when removing thousands of map layers
355
356				indexKey = type + '_idx';
357				indexLenKey = indexKey + '_len';
358
359				typeIndex = events[indexKey] = events[indexKey] || {};
360
361				if (!typeIndex[contextId]) {
362					typeIndex[contextId] = [];
363
364					// keep track of the number of keys in the index to quickly check if it's empty
365					events[indexLenKey] = (events[indexLenKey] || 0) + 1;
366				}
367
368				typeIndex[contextId].push(event);
369
370
371			} else {
372				events[type] = events[type] || [];
373				events[type].push(event);
374			}
375		}
376
377		return this;
378	},
379
380	hasEventListeners: function (type) { // (String) -> Boolean
381		var events = this[eventsKey];
382		return !!events && ((type in events && events[type].length > 0) ||
383		                    (type + '_idx' in events && events[type + '_idx_len'] > 0));
384	},
385
386	removeEventListener: function (types, fn, context) { // ([String, Function, Object]) or (Object[, Object])
387
388		if (!this[eventsKey]) {
389			return this;
390		}
391
392		if (!types) {
393			return this.clearAllEventListeners();
394		}
395
396		if (L.Util.invokeEach(types, this.removeEventListener, this, fn, context)) { return this; }
397
398		var events = this[eventsKey],
399		    contextId = context && context !== this && L.stamp(context),
400		    i, len, type, listeners, j, indexKey, indexLenKey, typeIndex, removed;
401
402		types = L.Util.splitWords(types);
403
404		for (i = 0, len = types.length; i < len; i++) {
405			type = types[i];
406			indexKey = type + '_idx';
407			indexLenKey = indexKey + '_len';
408
409			typeIndex = events[indexKey];
410
411			if (!fn) {
412				// clear all listeners for a type if function isn't specified
413				delete events[type];
414				delete events[indexKey];
415				delete events[indexLenKey];
416
417			} else {
418				listeners = contextId && typeIndex ? typeIndex[contextId] : events[type];
419
420				if (listeners) {
421					for (j = listeners.length - 1; j >= 0; j--) {
422						if ((listeners[j].action === fn) && (!context || (listeners[j].context === context))) {
423							removed = listeners.splice(j, 1);
424							// set the old action to a no-op, because it is possible
425							// that the listener is being iterated over as part of a dispatch
426							removed[0].action = L.Util.falseFn;
427						}
428					}
429
430					if (context && typeIndex && (listeners.length === 0)) {
431						delete typeIndex[contextId];
432						events[indexLenKey]--;
433					}
434				}
435			}
436		}
437
438		return this;
439	},
440
441	clearAllEventListeners: function () {
442		delete this[eventsKey];
443		return this;
444	},
445
446	fireEvent: function (type, data) { // (String[, Object])
447		if (!this.hasEventListeners(type)) {
448			return this;
449		}
450
451		var event = L.Util.extend({}, data, { type: type, target: this });
452
453		var events = this[eventsKey],
454		    listeners, i, len, typeIndex, contextId;
455
456		if (events[type]) {
457			// make sure adding/removing listeners inside other listeners won't cause infinite loop
458			listeners = events[type].slice();
459
460			for (i = 0, len = listeners.length; i < len; i++) {
461				listeners[i].action.call(listeners[i].context, event);
462			}
463		}
464
465		// fire event for the context-indexed listeners as well
466		typeIndex = events[type + '_idx'];
467
468		for (contextId in typeIndex) {
469			listeners = typeIndex[contextId].slice();
470
471			if (listeners) {
472				for (i = 0, len = listeners.length; i < len; i++) {
473					listeners[i].action.call(listeners[i].context, event);
474				}
475			}
476		}
477
478		return this;
479	},
480
481	addOneTimeEventListener: function (types, fn, context) {
482
483		if (L.Util.invokeEach(types, this.addOneTimeEventListener, this, fn, context)) { return this; }
484
485		var handler = L.bind(function () {
486			this
487			    .removeEventListener(types, fn, context)
488			    .removeEventListener(types, handler, context);
489		}, this);
490
491		return this
492		    .addEventListener(types, fn, context)
493		    .addEventListener(types, handler, context);
494	}
495};
496
497L.Mixin.Events.on = L.Mixin.Events.addEventListener;
498L.Mixin.Events.off = L.Mixin.Events.removeEventListener;
499L.Mixin.Events.once = L.Mixin.Events.addOneTimeEventListener;
500L.Mixin.Events.fire = L.Mixin.Events.fireEvent;
501
502
503/*
504 * L.Browser handles different browser and feature detections for internal Leaflet use.
505 */
506
507(function () {
508
509	var ie = 'ActiveXObject' in window,
510		ielt9 = ie && !document.addEventListener,
511
512	    // terrible browser detection to work around Safari / iOS / Android browser bugs
513	    ua = navigator.userAgent.toLowerCase(),
514	    webkit = ua.indexOf('webkit') !== -1,
515	    chrome = ua.indexOf('chrome') !== -1,
516	    phantomjs = ua.indexOf('phantom') !== -1,
517	    android = ua.indexOf('android') !== -1,
518	    android23 = ua.search('android [23]') !== -1,
519		gecko = ua.indexOf('gecko') !== -1,
520
521	    mobile = typeof orientation !== undefined + '',
522	    msPointer = window.navigator && window.navigator.msPointerEnabled &&
523	              window.navigator.msMaxTouchPoints && !window.PointerEvent,
524		pointer = (window.PointerEvent && window.navigator.pointerEnabled && window.navigator.maxTouchPoints) ||
525				  msPointer,
526	    retina = ('devicePixelRatio' in window && window.devicePixelRatio > 1) ||
527	             ('matchMedia' in window && window.matchMedia('(min-resolution:144dpi)') &&
528	              window.matchMedia('(min-resolution:144dpi)').matches),
529
530	    doc = document.documentElement,
531	    ie3d = ie && ('transition' in doc.style),
532	    webkit3d = ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()) && !android23,
533	    gecko3d = 'MozPerspective' in doc.style,
534	    opera3d = 'OTransition' in doc.style,
535	    any3d = !window.L_DISABLE_3D && (ie3d || webkit3d || gecko3d || opera3d) && !phantomjs;
536
537
538	// PhantomJS has 'ontouchstart' in document.documentElement, but doesn't actually support touch.
539	// https://github.com/Leaflet/Leaflet/pull/1434#issuecomment-13843151
540
541	var touch = !window.L_NO_TOUCH && !phantomjs && (function () {
542
543		var startName = 'ontouchstart';
544
545		// IE10+ (We simulate these into touch* events in L.DomEvent and L.DomEvent.Pointer) or WebKit, etc.
546		if (pointer || (startName in doc)) {
547			return true;
548		}
549
550		// Firefox/Gecko
551		var div = document.createElement('div'),
552		    supported = false;

553
554		if (!div.setAttribute) {
555			return false;
556		}
557		div.setAttribute(startName, 'return;');
558
559		if (typeof div[startName] === 'function') {
560			supported = true;
561		}
562
563		div.removeAttribute(startName);
564		div = null;
565
566		return supported;
567	}());
568
569
570	L.Browser = {
571		ie: ie,
572		ielt9: ielt9,
573		webkit: webkit,
574		gecko: gecko && !webkit && !window.opera && !ie,
575
576		android: android,
577		android23: android23,
578
579		chrome: chrome,
580
581		ie3d: ie3d,
582		webkit3d: webkit3d,
583		gecko3d: gecko3d,
584		opera3d: opera3d,
585		any3d: any3d,
586
587		mobile: mobile,
588		mobileWebkit: mobile && webkit,
589		mobileWebkit3d: mobile && webkit3d,
590		mobileOpera: mobile && window.opera,
591
592		touch: touch,
593		msPointer: msPointer,
594		pointer: pointer,
595
596		retina: retina
597	};
598
599}());
600
601
602/*
603 * L.Point represents a point with x and y coordinates.
604 */
605
606L.Point = function (/*Number*/ x, /*Number*/ y, /*Boolean*/ round) {
607	this.x = (round ? Math.round(x) : x);
608	this.y = (round ? Math.round(y) : y);
609};
610
611L.Point.prototype = {
612
613	clone: function () {
614		return new L.Point(this.x, this.y);
615	},
616
617	// non-destructive, returns a new point
618	add: function (point) {
619		return this.clone()._add(L.point(point));
620	},
621
622	// destructive, used directly for performance in situations where it's safe to modify existing point
623	_add: function (point) {
624		this.x += point.x;
625		this.y += point.y;
626		return this;
627	},
628
629	subtract: function (point) {
630		return this.clone()._subtract(L.point(point));
631	},
632
633	_subtract: function (point) {
634		this.x -= point.x;
635		this.y -= point.y;
636		return this;
637	},
638
639	divideBy: function (num) {
640		return this.clone()._divideBy(num);
641	},
642
643	_divideBy: function (num) {
644		this.x /= num;
645		this.y /= num;
646		return this;
647	},
648
649	multiplyBy: function (num) {
650		return this.clone()._multiplyBy(num);
651	},
652
653	_multiplyBy: function (num) {
654		this.x *= num;
655		this.y *= num;
656		return this;
657	},
658
659	round: function () {
660		return this.clone()._round();
661	},
662
663	_round: function () {
664		this.x = Math.round(this.x);
665		this.y = Math.round(this.y);
666		return this;
667	},
668
669	floor: function () {
670		return this.clone()._floor();
671	},
672
673	_floor: function () {
674		this.x = Math.floor(this.x);
675		this.y = Math.floor(this.y);
676		return this;
677	},
678
679	distanceTo: function (point) {
680		point = L.point(point);
681
682		var x = point.x - this.x,
683		    y = point.y - this.y;
684
685		return Math.sqrt(x * x + y * y);
686	},
687
688	equals: function (point) {
689		point = L.point(point);
690
691		return point.x === this.x &&
692		       point.y === this.y;
693	},
694
695	contains: function (point) {
696		point = L.point(point);
697
698		return Math.abs(point.x) <= Math.abs(this.x) &&
699		       Math.abs(point.y) <= Math.abs(this.y);
700	},
701
702	toString: function () {
703		return 'Point(' +
704		        L.Util.formatNum(this.x) + ', ' +
705		        L.Util.formatNum(this.y) + ')';
706	}
707};
708
709L.point = function (x, y, round) {
710	if (x instanceof L.Point) {
711		return x;
712	}
713	if (L.Util.isArray(x)) {
714		return new L.Point(x[0], x[1]);
715	}
716	if (x === undefined || x === null) {
717		return x;
718	}
719	return new L.Point(x, y, round);
720};
721
722
723/*
724 * L.Bounds represents a rectangular area on the screen in pixel coordinates.
725 */
726
727L.Bounds = function (a, b) { //(Point, Point) or Point[]
728	if (!a) { return; }
729
730	var points = b ? [a, b] : a;
731
732	for (var i = 0, len = points.length; i < len; i++) {
733		this.extend(points[i]);
734	}
735};
736
737L.Bounds.prototype = {
738	// extend the bounds to contain the given point
739	extend: function (point) { // (Point)
740		point = L.point(point);
741
742		if (!this.min && !this.max) {
743			this.min = point.clone();
744			this.max = point.clone();
745		} else {
746			this.min.x = Math.min(point.x, this.min.x);
747			this.max.x = Math.max(point.x, this.max.x);
748			this.min.y = Math.min(point.y, this.min.y);
749			this.max.y = Math.max(point.y, this.max.y);
750		}
751		return this;
752	},
753
754	getCenter: function (round) { // (Boolean) -> Point
755		return new L.Point(
756		        (this.min.x + this.max.x) / 2,
757		        (this.min.y + this.max.y) / 2, round);
758	},
759
760	getBottomLeft: function () { // -> Point
761		return new L.Point(this.min.x, this.max.y);
762	},
763
764	getTopRight: function () { // -> Point
765		return new L.Point(this.max.x, this.min.y);
766	},
767
768	getSize: function () {
769		return this.max.subtract(this.min);
770	},
771
772	contains: function (obj) { // (Bounds) or (Point) -> Boolean
773		var min, max;
774
775		if (typeof obj[0] === 'number' || obj instanceof L.Point) {
776			obj = L.point(obj);
777		} else {
778			obj = L.bounds(obj);
779		}
780
781		if (obj instanceof L.Bounds) {
782			min = obj.min;
783			max = obj.max;
784		} else {
785			min = max = obj;
786		}
787
788		return (min.x >= this.min.x) &&
789		       (max.x <= this.max.x) &&
790		       (min.y >= this.min.y) &&
791		       (max.y <= this.max.y);
792	},
793
794	intersects: function (bounds) { // (Bounds) -> Boolean
795		bounds = L.bounds(bounds);
796
797		var min = this.min,
798		    max = this.max,
799		    min2 = bounds.min,

800		    max2 = bounds.max,
801		    xIntersects = (max2.x >= min.x) && (min2.x <= max.x),
802		    yIntersects = (max2.y >= min.y) && (min2.y <= max.y);
803
804		return xIntersects && yIntersects;
805	},
806
807	isValid: function () {
808		return !!(this.min && this.max);
809	}
810};
811
812L.bounds = function (a, b) { // (Bounds) or (Point, Point) or (Point[])
813	if (!a || a instanceof L.Bounds) {
814		return a;
815	}
816	return new L.Bounds(a, b);
817};
818
819
820/*
821 * L.Transformation is an utility class to perform simple point transformations through a 2d-matrix.
822 */
823
824L.Transformation = function (a, b, c, d) {
825	this._a = a;
826	this._b = b;
827	this._c = c;
828	this._d = d;
829};
830
831L.Transformation.prototype = {
832	transform: function (point, scale) { // (Point, Number) -> Point
833		return this._transform(point.clone(), scale);
834	},
835
836	// destructive transform (faster)
837	_transform: function (point, scale) {
838		scale = scale || 1;
839		point.x = scale * (this._a * point.x + this._b);
840		point.y = scale * (this._c * point.y + this._d);
841		return point;
842	},
843
844	untransform: function (point, scale) {
845		scale = scale || 1;
846		return new L.Point(
847		        (point.x / scale - this._b) / this._a,
848		        (point.y / scale - this._d) / this._c);
849	}
850};
851
852
853/*
854 * L.DomUtil contains various utility functions for working with DOM.
855 */
856
857L.DomUtil = {
858	get: function (id) {
859		return (typeof id === 'string' ? document.getElementById(id) : id);
860	},
861
862	getStyle: function (el, style) {
863
864		var value = el.style[style];
865
866		if (!value && el.currentStyle) {
867			value = el.currentStyle[style];
868		}
869
870		if ((!value || value === 'auto') && document.defaultView) {
871			var css = document.defaultView.getComputedStyle(el, null);
872			value = css ? css[style] : null;
873		}
874
875		return value === 'auto' ? null : value;
876	},
877
878	getViewportOffset: function (element) {
879
880		var top = 0,
881		    left = 0,
882		    el = element,
883		    docBody = document.body,
884		    docEl = document.documentElement,
885		    pos;
886
887		do {
888			top  += el.offsetTop  || 0;
889			left += el.offsetLeft || 0;
890
891			//add borders
892			top += parseInt(L.DomUtil.getStyle(el, 'borderTopWidth'), 10) || 0;
893			left += parseInt(L.DomUtil.getStyle(el, 'borderLeftWidth'), 10) || 0;
894
895			pos = L.DomUtil.getStyle(el, 'position');
896
897			if (el.offsetParent === docBody && pos === 'absolute') { break; }
898
899			if (pos === 'fixed') {
900				top  += docBody.scrollTop  || docEl.scrollTop  || 0;
901				left += docBody.scrollLeft || docEl.scrollLeft || 0;
902				break;
903			}
904
905			if (pos === 'relative' && !el.offsetLeft) {
906				var width = L.DomUtil.getStyle(el, 'width'),
907				    maxWidth = L.DomUtil.getStyle(el, 'max-width'),
908				    r = el.getBoundingClientRect();
909
910				if (width !== 'none' || maxWidth !== 'none') {
911					left += r.left + el.clientLeft;
912				}
913
914				//calculate full y offset since we're breaking out of the loop
915				top += r.top + (docBody.scrollTop  || docEl.scrollTop  || 0);
916
917				break;
918			}
919
920			el = el.offsetParent;
921
922		} while (el);
923
924		el = element;
925
926		do {
927			if (el === docBody) { break; }
928
929			top  -= el.scrollTop  || 0;
930			left -= el.scrollLeft || 0;
931
932			el = el.parentNode;
933		} while (el);
934
935		return new L.Point(left, top);
936	},
937
938	documentIsLtr: function () {
939		if (!L.DomUtil._docIsLtrCached) {
940			L.DomUtil._docIsLtrCached = true;
941			L.DomUtil._docIsLtr = L.DomUtil.getStyle(document.body, 'direction') === 'ltr';
942		}
943		return L.DomUtil._docIsLtr;
944	},
945
946	create: function (tagName, className, container) {
947
948		var el = document.createElement(tagName);
949		el.className = className;
950
951		if (container) {
952			container.appendChild(el);
953		}
954
955		return el;
956	},
957
958	hasClass: function (el, name) {
959		if (el.classList !== undefined) {
960			return el.classList.contains(name);
961		}
962		var className = L.DomUtil._getClass(el);
963		return className.length > 0 && new RegExp('(^|\\s)' + name + '(\\s|$)').test(className);
964	},
965
966	addClass: function (el, name) {
967		if (el.classList !== undefined) {
968			var classes = L.Util.splitWords(name);
969			for (var i = 0, len = classes.length; i < len; i++) {
970				el.classList.add(classes[i]);
971			}
972		} else if (!L.DomUtil.hasClass(el, name)) {
973			var className = L.DomUtil._getClass(el);
974			L.DomUtil._setClass(el, (className ? className + ' ' : '') + name);
975		}
976	},
977
978	removeClass: function (el, name) {
979		if (el.classList !== undefined) {
980			el.classList.remove(name);
981		} else {
982			L.DomUtil._setClass(el, L.Util.trim((' ' + L.DomUtil._getClass(el) + ' ').replace(' ' + name + ' ', ' ')));
983		}
984	},
985
986	_setClass: function (el, name) {
987		if (el.className.baseVal === undefined) {
988			el.className = name;
989		} else {
990			// in case of SVG element
991			el.className.baseVal = name;
992		}
993	},
994
995	_getClass: function (el) {
996		return el.className.baseVal === undefined ? el.className : el.className.baseVal;
997	},
998
999	setOpacity: function (el, value) {
1000
1001		if ('opacity' in el.style) {
1002			el.style.opacity = value;
1003
1004		} else if ('filter' in el.style) {
1005
1006			var filter = false,
1007			    filterName = 'DXImageTransform.Microsoft.Alpha';
1008
1009			// filters collection throws an error if we try to retrieve a filter that doesn't exist
1010			try {
1011				filter = el.filters.item(filterName);
1012			} catch (e) {
1013				// don't set opacity to 1 if we haven't already set an opacity,
1014				// it isn't needed and breaks transparent pngs.
1015				if (value === 1) { return; }
1016			}
1017
1018			value = Math.round(value * 100);
1019
1020			if (filter) {
1021				filter.Enabled = (value !== 100);
1022				filter.Opacity = value;
1023			} else {
1024				el.style.filter += ' progid:' + filterName + '(opacity=' + value + ')';
1025			}
1026		}
1027	},
1028
1029	testProp: function (props) {
1030
1031		var style = document.documentElement.style;
1032
1033		for (var i = 0; i < props.length; i++) {
1034			if (props[i] in style) {
1035				return props[i];
1036			}
1037		}
1038		return false;

1039	},
1040
1041	getTranslateString: function (point) {
1042		// on WebKit browsers (Chrome/Safari/iOS Safari/Android) using translate3d instead of translate
1043		// makes animation smoother as it ensures HW accel is used. Firefox 13 doesn't care
1044		// (same speed either way), Opera 12 doesn't support translate3d
1045
1046		var is3d = L.Browser.webkit3d,
1047		    open = 'translate' + (is3d ? '3d' : '') + '(',
1048		    close = (is3d ? ',0' : '') + ')';
1049
1050		return open + point.x + 'px,' + point.y + 'px' + close;
1051	},
1052
1053	getScaleString: function (scale, origin) {
1054
1055		var preTranslateStr = L.DomUtil.getTranslateString(origin.add(origin.multiplyBy(-1 * scale))),
1056		    scaleStr = ' scale(' + scale + ') ';
1057
1058		return preTranslateStr + scaleStr;
1059	},
1060
1061	setPosition: function (el, point, disable3D) { // (HTMLElement, Point[, Boolean])
1062
1063		// jshint camelcase: false
1064		el._leaflet_pos = point;
1065
1066		if (!disable3D && L.Browser.any3d) {
1067			el.style[L.DomUtil.TRANSFORM] =  L.DomUtil.getTranslateString(point);
1068		} else {
1069			el.style.left = point.x + 'px';
1070			el.style.top = point.y + 'px';
1071		}
1072	},
1073
1074	getPosition: function (el) {
1075		// this method is only used for elements previously positioned using setPosition,
1076		// so it's safe to cache the position for performance
1077
1078		// jshint camelcase: false
1079		return el._leaflet_pos;
1080	}
1081};
1082
1083
1084// prefix style property names
1085
1086L.DomUtil.TRANSFORM = L.DomUtil.testProp(
1087        ['transform', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform']);
1088
1089// webkitTransition comes first because some browser versions that drop vendor prefix don't do
1090// the same for the transitionend event, in particular the Android 4.1 stock browser
1091
1092L.DomUtil.TRANSITION = L.DomUtil.testProp(
1093        ['webkitTransition', 'transition', 'OTransition', 'MozTransition', 'msTransition']);
1094
1095L.DomUtil.TRANSITION_END =
1096        L.DomUtil.TRANSITION === 'webkitTransition' || L.DomUtil.TRANSITION === 'OTransition' ?
1097        L.DomUtil.TRANSITION + 'End' : 'transitionend';
1098
1099(function () {
1100    if ('onselectstart' in document) {
1101        L.extend(L.DomUtil, {
1102            disableTextSelection: function () {
1103                L.DomEvent.on(window, 'selectstart', L.DomEvent.preventDefault);
1104            },
1105
1106            enableTextSelection: function () {
1107                L.DomEvent.off(window, 'selectstart', L.DomEvent.preventDefault);
1108            }
1109        });
1110    } else {
1111        var userSelectProperty = L.DomUtil.testProp(
1112            ['userSelect', 'WebkitUserSelect', 'OUserSelect', 'MozUserSelect', 'msUserSelect']);
1113
1114        L.extend(L.DomUtil, {
1115            disableTextSelection: function () {
1116                if (userSelectProperty) {
1117                    var style = document.documentElement.style;
1118                    this._userSelect = style[userSelectProperty];
1119                    style[userSelectProperty] = 'none';
1120                }
1121            },
1122
1123            enableTextSelection: function () {
1124                if (userSelectProperty) {
1125                    document.documentElement.style[userSelectProperty] = this._userSelect;
1126                    delete this._userSelect;
1127                }
1128            }
1129        });
1130    }
1131
1132	L.extend(L.DomUtil, {
1133		disableImageDrag: function () {
1134			L.DomEvent.on(window, 'dragstart', L.DomEvent.preventDefault);
1135		},
1136
1137		enableImageDrag: function () {
1138			L.DomEvent.off(window, 'dragstart', L.DomEvent.preventDefault);
1139		}
1140	});
1141})();
1142
1143
1144/*
1145 * L.LatLng represents a geographical point with latitude and longitude coordinates.
1146 */
1147
1148L.LatLng = function (lat, lng, alt) { // (Number, Number, Number)
1149	lat = parseFloat(lat);
1150	lng = parseFloat(lng);
1151
1152	if (isNaN(lat) || isNaN(lng)) {
1153		throw new Error('Invalid LatLng object: (' + lat + ', ' + lng + ')');
1154	}
1155
1156	this.lat = lat;
1157	this.lng = lng;
1158
1159	if (alt !== undefined) {
1160		this.alt = parseFloat(alt);
1161	}
1162};
1163
1164L.extend(L.LatLng, {
1165	DEG_TO_RAD: Math.PI / 180,
1166	RAD_TO_DEG: 180 / Math.PI,
1167	MAX_MARGIN: 1.0E-9 // max margin of error for the "equals" check
1168});
1169
1170L.LatLng.prototype = {
1171	equals: function (obj) { // (LatLng) -> Boolean
1172		if (!obj) { return false; }
1173
1174		obj = L.latLng(obj);
1175
1176		var margin = Math.max(
1177		        Math.abs(this.lat - obj.lat),
1178		        Math.abs(this.lng - obj.lng));
1179
1180		return margin <= L.LatLng.MAX_MARGIN;
1181	},
1182
1183	toString: function (precision) { // (Number) -> String
1184		return 'LatLng(' +

1185		        L.Util.formatNum(this.lat, precision) + ', ' +
1186		        L.Util.formatNum(this.lng, precision) + ')';
1187	},
1188
1189	// Haversine distance formula, see http://en.wikipedia.org/wiki/Haversine_formula
1190	// TODO move to projection code, LatLng shouldn't know about Earth
1191	distanceTo: function (other) { // (LatLng) -> Number
1192		other = L.latLng(other);
1193
1194		var R = 6378137, // earth radius in meters
1195		    d2r = L.LatLng.DEG_TO_RAD,
1196		    dLat = (other.lat - this.lat) * d2r,
1197		    dLon = (other.lng - this.lng) * d2r,
1198		    lat1 = this.lat * d2r,
1199		    lat2 = other.lat * d2r,
1200		    sin1 = Math.sin(dLat / 2),
1201		    sin2 = Math.sin(dLon / 2);
1202
1203		var a = sin1 * sin1 + sin2 * sin2 * Math.cos(lat1) * Math.cos(lat2);
1204
1205		return R * 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
1206	},
1207
1208	wrap: function (a, b) { // (Number, Number) -> LatLng
1209		var lng = this.lng;
1210
1211		a = a || -180;
1212		b = b ||  180;
1213
1214		lng = (lng + b) % (b - a) + (lng < a || lng === b ? b : a);
1215
1216		return new L.LatLng(this.lat, lng);
1217	}
1218};
1219
1220L.latLng = function (a, b) { // (LatLng) or ([Number, Number]) or (Number, Number)
1221	if (a instanceof L.LatLng) {
1222		return a;
1223	}
1224	if (L.Util.isArray(a)) {
1225		if (typeof a[0] === 'number' || typeof a[0] === 'string') {
1226			return new L.LatLng(a[0], a[1], a[2]);
1227		} else {
1228			return null;
1229		}
1230	}
1231	if (a === undefined || a === null) {
1232		return a;
1233	}
1234	if (typeof a === 'object' && 'lat' in a) {
1235		return new L.LatLng(a.lat, 'lng' in a ? a.lng : a.lon);
1236	}
1237	if (b === undefined) {
1238		return null;
1239	}
1240	return new L.LatLng(a, b);
1241};
1242
1243
1244
1245/*
1246 * L.LatLngBounds represents a rectangular area on the map in geographical coordinates.
1247 */
1248
1249L.LatLngBounds = function (southWest, northEast) { // (LatLng, LatLng) or (LatLng[])
1250	if (!southWest) { return; }
1251
1252	var latlngs = northEast ? [southWest, northEast] : southWest;
1253
1254	for (var i = 0, len = latlngs.length; i < len; i++) {
1255		this.extend(latlngs[i]);
1256	}
1257};
1258
1259L.LatLngBounds.prototype = {
1260	// extend the bounds to contain the given point or bounds
1261	extend: function (obj) { // (LatLng) or (LatLngBounds)
1262		if (!obj) { return this; }
1263
1264		var latLng = L.latLng(obj);
1265		if (latLng !== null) {
1266			obj = latLng;
1267		} else {
1268			obj = L.latLngBounds(obj);
1269		}
1270
1271		if (obj instanceof L.LatLng) {
1272			if (!this._southWest && !this._northEast) {
1273				this._southWest = new L.LatLng(obj.lat, obj.lng);
1274				this._northEast = new L.LatLng(obj.lat, obj.lng);
1275			} else {
1276				this._southWest.lat = Math.min(obj.lat, this._southWest.lat);
1277				this._southWest.lng = Math.min(obj.lng, this._southWest.lng);
1278
1279				this._northEast.lat = Math.max(obj.lat, this._northEast.lat);
1280				this._northEast.lng = Math.max(obj.lng, this._northEast.lng);
1281			}
1282		} else if (obj instanceof L.LatLngBounds) {
1283			this.extend(obj._southWest);
1284			this.extend(obj._northEast);
1285		}
1286		return this;
1287	},
1288
1289	// extend the bounds by a percentage
1290	pad: function (bufferRatio) { // (Number) -> LatLngBounds
1291		var sw = this._southWest,
1292		    ne = this._northEast,
1293		    heightBuffer = Math.abs(sw.lat - ne.lat) * bufferRatio,
1294		    widthBuffer = Math.abs(sw.lng - ne.lng) * bufferRatio;
1295
1296		return new L.LatLngBounds(
1297		        new L.LatLng(sw.lat - heightBuffer, sw.lng - widthBuffer),
1298		        new L.LatLng(ne.lat + heightBuffer, ne.lng + widthBuffer));
1299	},
1300
1301	getCenter: function () { // -> LatLng
1302		return new L.LatLng(
1303		        (this._southWest.lat + this._northEast.lat) / 2,
1304		        (this._southWest.lng + this._northEast.lng) / 2);
1305	},
1306
1307	getSouthWest: function () {
1308		return this._southWest;
1309	},
1310
1311	getNorthEast: function () {
1312		return this._northEast;
1313	},
1314
1315	getNorthWest: function () {
1316		return new L.LatLng(this.getNorth(), this.getWest());
1317	},
1318
1319	getSouthEast: function () {
1320		return new L.LatLng(this.getSouth(), this.getEast());
1321	},
1322
1323	getWest: function () {
1324		return this._southWest.lng;
1325	},
1326
1327	getSouth: function () {
1328		return this._southWest.lat;
1329	},
1330
1331	getEast: function () {
1332		return this._northEast.lng;
1333	},
1334
1335	getNorth: function () {
1336		return this._northEast.lat;
1337	},
1338
1339	contains: function (obj) { // (LatLngBounds) or (LatLng) -> Boolean
1340		if (typeof obj[0] === 'number' || obj instanceof L.LatLng) {
1341			obj = L.latLng(obj);
1342		} else {
1343			obj = L.latLngBounds(obj);
1344		}
1345
1346		var sw = this._southWest,
1347		    ne = this._northEast,
1348		    sw2, ne2;
1349
1350		if (obj instanceof L.LatLngBounds) {

1351			sw2 = obj.getSouthWest();
1352			ne2 = obj.getNorthEast();
1353		} else {
1354			sw2 = ne2 = obj;
1355		}
1356
1357		return (sw2.lat >= sw.lat) && (ne2.lat <= ne.lat) &&
1358		       (sw2.lng >= sw.lng) && (ne2.lng <= ne.lng);
1359	},
1360
1361	intersects: function (bounds) { // (LatLngBounds)
1362		bounds = L.latLngBounds(bounds);
1363
1364		var sw = this._southWest,
1365		    ne = this._northEast,
1366		    sw2 = bounds.getSouthWest(),
1367		    ne2 = bounds.getNorthEast(),
1368
1369		    latIntersects = (ne2.lat >= sw.lat) && (sw2.lat <= ne.lat),
1370		    lngIntersects = (ne2.lng >= sw.lng) && (sw2.lng <= ne.lng);
1371
1372		return latIntersects && lngIntersects;
1373	},
1374
1375	toBBoxString: function () {
1376		return [this.getWest(), this.getSouth(), this.getEast(), this.getNorth()].join(',');
1377	},
1378
1379	equals: function (bounds) { // (LatLngBounds)
1380		if (!bounds) { return false; }
1381
1382		bounds = L.latLngBounds(bounds);
1383
1384		return this._southWest.equals(bounds.getSouthWest()) &&
1385		       this._northEast.equals(bounds.getNorthEast());
1386	},
1387
1388	isValid: function () {
1389		return !!(this._southWest && this._northEast);
1390	}
1391};
1392
1393//TODO International date line?
1394
1395L.latLngBounds = function (a, b) { // (LatLngBounds) or (LatLng, LatLng)
1396	if (!a || a instanceof L.LatLngBounds) {
1397		return a;
1398	}
1399	return new L.LatLngBounds(a, b);
1400};
1401
1402
1403/*
1404 * L.Projection contains various geographical projections used by CRS classes.
1405 */
1406
1407L.Projection = {};
1408
1409
1410/*
1411 * Spherical Mercator is the most popular map projection, used by EPSG:3857 CRS used by default.
1412 */
1413
1414L.Projection.SphericalMercator = {
1415	MAX_LATITUDE: 85.0511287798,
1416
1417	project: function (latlng) { // (LatLng) -> Point
1418		var d = L.LatLng.DEG_TO_RAD,
1419		    max = this.MAX_LATITUDE,
1420		    lat = Math.max(Math.min(max, latlng.lat), -max),
1421		    x = latlng.lng * d,
1422		    y = lat * d;
1423
1424		y = Math.log(Math.tan((Math.PI / 4) + (y / 2)));
1425
1426		return new L.Point(x, y);
1427	},
1428
1429	unproject: function (point) { // (Point, Boolean) -> LatLng
1430		var d = L.LatLng.RAD_TO_DEG,
1431		    lng = point.x * d,
1432		    lat = (2 * Math.atan(Math.exp(point.y)) - (Math.PI / 2)) * d;
1433
1434		return new L.LatLng(lat, lng);
1435	}
1436};
1437
1438
1439/*
1440 * Simple equirectangular (Plate Carree) projection, used by CRS like EPSG:4326 and Simple.
1441 */
1442
1443L.Projection.LonLat = {
1444	project: function (latlng) {
1445		return new L.Point(latlng.lng, latlng.lat);
1446	},
1447
1448	unproject: function (point) {
1449		return new L.LatLng(point.y, point.x);
1450	}
1451};
1452
1453
1454/*
1455 * L.CRS is a base object for all defined CRS (Coordinate Reference Systems) in Leaflet.
1456 */
1457
1458L.CRS = {
1459	latLngToPoint: function (latlng, zoom) { // (LatLng, Number) -> Point
1460		var projectedPoint = this.projection.project(latlng),
1461		    scale = this.scale(zoom);
1462
1463		return this.transformation._transform(projectedPoint, scale);
1464	},
1465
1466	pointToLatLng: function (point, zoom) { // (Point, Number[, Boolean]) -> LatLng
1467		var scale = this.scale(zoom),
1468		    untransformedPoint = this.transformation.untransform(point, scale);
1469
1470		return this.projection.unproject(untransformedPoint);
1471	},
1472
1473	project: function (latlng) {
1474		return this.projection.project(latlng);
1475	},
1476
1477	scale: function (zoom) {
1478		return 256 * Math.pow(2, zoom);
1479	},
1480
1481	getSize: function (zoom) {
1482		var s = this.scale(zoom);
1483		return L.point(s, s);
1484	}
1485};
1486
1487
1488/*
1489 * A simple CRS that can be used for flat non-Earth maps like panoramas or game maps.
1490 */
1491
1492L.CRS.Simple = L.extend({}, L.CRS, {
1493	projection: L.Projection.LonLat,
1494	transformation: new L.Transformation(1, 0, -1, 0),
1495
1496	scale: function (zoom) {
1497		return Math.pow(2, zoom);
1498	}
1499});
1500
1501
1502/*
1503 * L.CRS.EPSG3857 (Spherical Mercator) is the most common CRS for web mapping
1504 * and is used by Leaflet by default.
1505 */
1506
1507L.CRS.EPSG3857 = L.extend({}, L.CRS, {
1508	code: 'EPSG:3857',
1509
1510	projection: L.Projection.SphericalMercator,
1511	transformation: new L.Transformation(0.5 / Math.PI, 0.5, -0.5 / Math.PI, 0.5),
1512
1513	project: function (latlng) { // (LatLng) -> Point
1514		var projectedPoint = this.projection.project(latlng),
1515		    earthRadius = 6378137;
1516		return projectedPoint.multiplyBy(earthRadius);
1517	}
1518});
1519
1520L.CRS.EPSG900913 = L.extend({}, L.CRS.EPSG3857, {
1521	code: 'EPSG:900913'
1522});
1523
1524
1525/*
1526 * L.CRS.EPSG4326 is a CRS popular among advanced GIS specialists.
1527 */
1528
1529L.CRS.EPSG4326 = L.extend({}, L.CRS, {
1530	code: 'EPSG:4326',
1531
1532	projection: L.Projection.LonLat,
1533	transformation: new L.Transformation(1 / 360, 0.5, -1 / 360, 0.5)
1534});
1535
1536
1537/*
1538 * L.Map is the central class of the API - it is used to create a map.
1539 */
1540
1541L.Map = L.Class.extend({
1542
1543	includes: L.Mixin.Events,
1544
1545	options: {
1546		crs: L.CRS.EPSG3857,
1547
1548		/*
1549		center: LatLng,
1550		zoom: Number,
1551		layers: Array,
1552		*/
1553
1554		fadeAnimation: L.DomUtil.TRANSITION && !L.Browser.android23,
1555		trackResize: true,
1556		markerZoomAnimation: L.DomUtil.TRANSITION && L.Browser.any3d
1557	},
1558
1559	initialize: function (id, options) { // (HTMLElement or String, Object)
1560		options = L.setOptions(this, options);
1561
1562
1563		this._initContainer(id);
1564		this._initLayout();
1565
1566		// hack for https://github.com/Leaflet/Leaflet/issues/1980
1567		this._onResize = L.bind(this._onResize, this);
1568
1569		this._initEvents();
1570
1571		if (options.maxBounds) {
1572			this.setMaxBounds(options.maxBounds);
1573		}
1574
1575		if (options.center && options.zoom !== undefined) {
1576			this.setView(L.latLng(options.center), options.zoom, {reset: true});
1577		}
1578
1579		this._handlers = [];
1580
1581		this._layers = {};
1582		this._zoomBoundLayers = {};
1583		this._tileLayersNum = 0;
1584
1585		this.callInitHooks();
1586
1587		this._addLayers(options.layers);
1588	},
1589
1590
1591	// public methods that modify map state
1592
1593	// replaced by animation-powered implementation in Map.PanAnimation.js
1594	setView: function (center, zoom) {
1595		zoom = zoom === undefined ? this.getZoom() : zoom;
1596		this._resetView(L.latLng(center), this._limitZoom(zoom));
1597		return this;
1598	},
1599
1600	setZoom: function (zoom, options) {
1601		if (!this._loaded) {
1602			this._zoom = this._limitZoom(zoom);
1603			return this;
1604		}
1605		return this.setView(this.getCenter(), zoom, {zoom: options});
1606	},
1607
1608	zoomIn: function (delta, options) {
1609		return this.setZoom(this._zoom + (delta || 1), options);
1610	},
1611
1612	zoomOut: function (delta, options) {
1613		return this.setZoom(this._zoom - (delta || 1), options);
1614	},
1615
1616	setZoomAround: function (latlng, zoom, options) {
1617		var scale = this.getZoomScale(zoom),

1618		    viewHalf = this.getSize().divideBy(2),
1619		    containerPoint = latlng instanceof L.Point ? latlng : this.latLngToContainerPoint(latlng),
1620
1621		    centerOffset = containerPoint.subtract(viewHalf).multiplyBy(1 - 1 / scale),
1622		    newCenter = this.containerPointToLatLng(viewHalf.add(centerOffset));
1623
1624		return this.setView(newCenter, zoom, {zoom: options});
1625	},
1626
1627	fitBounds: function (bounds, options) {
1628
1629		options = options || {};
1630		bounds = bounds.getBounds ? bounds.getBounds() : L.latLngBounds(bounds);
1631
1632		var paddingTL = L.point(options.paddingTopLeft || options.padding || [0, 0]),
1633		    paddingBR = L.point(options.paddingBottomRight || options.padding || [0, 0]),
1634
1635		    zoom = this.getBoundsZoom(bounds, false, paddingTL.add(paddingBR)),
1636		    paddingOffset = paddingBR.subtract(paddingTL).divideBy(2),
1637
1638		    swPoint = this.project(bounds.getSouthWest(), zoom),
1639		    nePoint = this.project(bounds.getNorthEast(), zoom),
1640		    center = this.unproject(swPoint.add(nePoint).divideBy(2).add(paddingOffset), zoom);
1641
1642		zoom = options && options.maxZoom ? Math.min(options.maxZoom, zoom) : zoom;
1643
1644		return this.setView(center, zoom, options);
1645	},
1646
1647	fitWorld: function (options) {
1648		return this.fitBounds([[-90, -180], [90, 180]], options);
1649	},
1650
1651	panTo: function (center, options) { // (LatLng)
1652		return this.setView(center, this._zoom, {pan: options});
1653	},
1654
1655	panBy: function (offset) { // (Point)
1656		// replaced with animated panBy in Map.PanAnimation.js
1657		this.fire('movestart');
1658
1659		this._rawPanBy(L.point(offset));
1660
1661		this.fire('move');
1662		return this.fire('moveend');
1663	},
1664
1665	setMaxBounds: function (bounds) {
1666		bounds = L.latLngBounds(bounds);
1667
1668		this.options.maxBounds = bounds;
1669
1670		if (!bounds) {
1671			return this.off('moveend', this._panInsideMaxBounds, this);
1672		}
1673
1674		if (this._loaded) {
1675			this._panInsideMaxBounds();
1676		}
1677
1678		return this.on('moveend', this._panInsideMaxBounds, this);
1679	},
1680
1681	panInsideBounds: function (bounds, options) {
1682		var center = this.getCenter(),
1683			newCenter = this._limitCenter(center, this._zoom, bounds);
1684
1685		if (center.equals(newCenter)) { return this; }
1686
1687		return this.panTo(newCenter, options);
1688	},
1689
1690	addLayer: function (layer) {
1691		// TODO method is too big, refactor
1692
1693		var id = L.stamp(layer);
1694
1695		if (this._layers[id]) { return this; }
1696
1697		this._layers[id] = layer;
1698
1699		// TODO getMaxZoom, getMinZoom in ILayer (instead of options)
1700		if (layer.options && (!isNaN(layer.options.maxZoom) || !isNaN(layer.options.minZoom))) {
1701			this._zoomBoundLayers[id] = layer;
1702			this._updateZoomLevels();
1703		}
1704
1705		// TODO looks ugly, refactor!!!
1706		if (this.options.zoomAnimation && L.TileLayer && (layer instanceof L.TileLayer)) {
1707			this._tileLayersNum++;
1708			this._tileLayersToLoad++;
1709			layer.on('load', this._onTileLayerLoad, this);
1710		}
1711
1712		if (this._loaded) {
1713			this._layerAdd(layer);
1714		}
1715
1716		return this;
1717	},
1718
1719	removeLayer: function (layer) {
1720		var id = L.stamp(layer);
1721
1722		if (!this._layers[id]) { return this; }
1723
1724		if (this._loaded) {
1725			layer.onRemove(this);
1726		}
1727
1728		delete this._layers[id];
1729
1730		if (this._loaded) {
1731			this.fire('layerremove', {layer: layer});
1732		}
1733
1734		if (this._zoomBoundLayers[id]) {
1735			delete this._zoomBoundLayers[id];
1736			this._updateZoomLevels();
1737		}
1738
1739		// TODO looks ugly, refactor
1740		if (this.options.zoomAnimation && L.TileLayer && (layer instanceof L.TileLayer)) {
1741			this._tileLayersNum--;
1742			this._tileLayersToLoad--;
1743			layer.off('load', this._onTileLayerLoad, this);
1744		}
1745
1746		return this;
1747	},
1748
1749	hasLayer: function (layer) {
1750		if (!layer) { return false; }
1751
1752		return (L.stamp(layer) in this._layers);
1753	},
1754
1755	eachLayer: function (method, context) {
1756		for (var i in this._layers) {
1757			method.call(context, this._layers[i]);
1758		}
1759		return this;
1760	},
1761
1762	invalidateSize: function (options) {
1763		if (!this._loaded) { return this; }
1764
1765		options = L.extend({
1766			animate: false,
1767			pan: true
1768		}, options === true ? {animate: true} : options);
1769
1770		var oldSize = this.getSize();
1771		this._sizeChanged = true;
1772		this._initialCenter = null;
1773
1774		var newSize = this.getSize(),
1775		    oldCenter = oldSize.divideBy(2).round(),
1776		    newCenter = newSize.divideBy(2).round(),
1777		    offset = oldCenter.subtract(newCenter);
1778
1779		if (!offset.x && !offset.y) { return this; }
1780
1781		if (options.animate && options.pan) {
1782			this.panBy(offset);
1783
1784		} else {
1785			if (options.pan) {
1786				this._rawPanBy(offset);
1787			}
1788
1789			this.fire('move');
1790
1791			if (options.debounceMoveend) {
1792				clearTimeout(this._sizeTimer);
1793				this._sizeTimer = setTimeout(L.bind(this.fire, this, 'moveend'), 200);
1794			} else {
1795				this.fire('moveend');
1796			}
1797		}
1798
1799		return this.fire('resize', {
1800			oldSize: oldSize,
1801			newSize: newSize
1802		});
1803	},
1804
1805	// TODO handler.addTo
1806	addHandler: function (name, HandlerClass) {
1807		if (!HandlerClass) { return this; }
1808
1809		var handler = this[name] = new HandlerClass(this);
1810
1811		this._handlers.push(handler);
1812
1813		if (this.options[name]) {
1814			handler.enable();
1815		}
1816
1817		return this;
1818	},
1819
1820	remove: function () {
1821		if (this._loaded) {
1822			this.fire('unload');
1823		}
1824
1825		this._initEvents('off');
1826
1827		try {
1828			// throws error in IE6-8
1829			delete this._container._leaflet;
1830		} catch (e) {
1831			this._container._leaflet = undefined;
1832		}
1833
1834		this._clearPanes();
1835		if (this._clearControlPos) {
1836			this._clearControlPos();
1837		}
1838
1839		this._clearHandlers();
1840
1841		return this;
1842	},
1843
1844
1845	// public methods for getting map state
1846
1847	getCenter: function () { // (Boolean) -> LatLng
1848		this._checkIfLoaded();
1849
1850		if (this._initialCenter && !this._moved()) {
1851			return this._initialCenter;
1852		}
1853		return this.layerPointToLatLng(this._getCenterLayerPoint());
1854	},
1855
1856	getZoom: function () {
1857		return this._zoom;
1858	},
1859
1860	getBounds: function () {
1861		var bounds = this.getPixelBounds(),
1862		    sw = this.unproject(bounds.getBottomLeft()),
1863		    ne = this.unproject(bounds.getTopRight());
1864
1865		return new L.LatLngBounds(sw, ne);
1866	},
1867
1868	getMinZoom: function () {
1869		return this.options.minZoom === undefined ?
1870			(this._layersMinZoom === undefined ? 0 : this._layersMinZoom) :
1871			this.options.minZoom;
1872	},
1873
1874	getMaxZoom: function () {
1875		return this.options.maxZoom === undefined ?

1876			(this._layersMaxZoom === undefined ? Infinity : this._layersMaxZoom) :
1877			this.options.maxZoom;
1878	},
1879
1880	getBoundsZoom: function (bounds, inside, padding) { // (LatLngBounds[, Boolean, Point]) -> Number
1881		bounds = L.latLngBounds(bounds);
1882
1883		var zoom = this.getMinZoom() - (inside ? 1 : 0),
1884		    maxZoom = this.getMaxZoom(),
1885		    size = this.getSize(),
1886
1887		    nw = bounds.getNorthWest(),
1888		    se = bounds.getSouthEast(),
1889
1890		    zoomNotFound = true,
1891		    boundsSize;
1892
1893		padding = L.point(padding || [0, 0]);
1894
1895		do {
1896			zoom++;
1897			boundsSize = this.project(se, zoom).subtract(this.project(nw, zoom)).add(padding);
1898			zoomNotFound = !inside ? size.contains(boundsSize) : boundsSize.x < size.x || boundsSize.y < size.y;
1899
1900		} while (zoomNotFound && zoom <= maxZoom);
1901
1902		if (zoomNotFound && inside) {
1903			return null;
1904		}
1905
1906		return inside ? zoom : zoom - 1;
1907	},
1908
1909	getSize: function () {
1910		if (!this._size || this._sizeChanged) {
1911			this._size = new L.Point(
1912				this._container.clientWidth,
1913				this._container.clientHeight);
1914
1915			this._sizeChanged = false;
1916		}
1917		return this._size.clone();
1918	},
1919
1920	getPixelBounds: function () {
1921		var topLeftPoint = this._getTopLeftPoint();
1922		return new L.Bounds(topLeftPoint, topLeftPoint.add(this.getSize()));
1923	},
1924
1925	getPixelOrigin: function () {
1926		this._checkIfLoaded();
1927		return this._initialTopLeftPoint;
1928	},
1929
1930	getPanes: function () {
1931		return this._panes;
1932	},
1933
1934	getContainer: function () {
1935		return this._container;
1936	},
1937
1938
1939	// TODO replace with universal implementation after refactoring projections
1940
1941	getZoomScale: function (toZoom) {
1942		var crs = this.options.crs;
1943		return crs.scale(toZoom) / crs.scale(this._zoom);
1944	},
1945
1946	getScaleZoom: function (scale) {
1947		return this._zoom + (Math.log(scale) / Math.LN2);
1948	},
1949
1950
1951	// conversion methods
1952
1953	project: function (latlng, zoom) { // (LatLng[, Number]) -> Point
1954		zoom = zoom === undefined ? this._zoom : zoom;
1955		return this.options.crs.latLngToPoint(L.latLng(latlng), zoom);
1956	},
1957
1958	unproject: function (point, zoom) { // (Point[, Number]) -> LatLng
1959		zoom = zoom === undefined ? this._zoom : zoom;
1960		return this.options.crs.pointToLatLng(L.point(point), zoom);
1961	},
1962
1963	layerPointToLatLng: function (point) { // (Point)
1964		var projectedPoint = L.point(point).add(this.getPixelOrigin());
1965		return this.unproject(projectedPoint);
1966	},
1967
1968	latLngToLayerPoint: function (latlng) { // (LatLng)
1969		var projectedPoint = this.project(L.latLng(latlng))._round();
1970		return projectedPoint._subtract(this.getPixelOrigin());
1971	},
1972
1973	containerPointToLayerPoint: function (point) { // (Point)
1974		return L.point(point).subtract(this._getMapPanePos());
1975	},
1976
1977	layerPointToContainerPoint: function (point) { // (Point)
1978		return L.point(point).add(this._getMapPanePos());
1979	},
1980
1981	containerPointToLatLng: function (point) {
1982		var layerPoint = this.containerPointToLayerPoint(L.point(point));
1983		return this.layerPointToLatLng(layerPoint);
1984	},
1985
1986	latLngToContainerPoint: function (latlng) {
1987		return this.layerPointToContainerPoint(this.latLngToLayerPoint(L.latLng(latlng)));
1988	},
1989
1990	mouseEventToContainerPoint: function (e) { // (MouseEvent)
1991		return L.DomEvent.getMousePosition(e, this._container);
1992	},
1993
1994	mouseEventToLayerPoint: function (e) { // (MouseEvent)
1995		return this.containerPointToLayerPoint(this.mouseEventToContainerPoint(e));
1996	},
1997
1998	mouseEventToLatLng: function (e) { // (MouseEvent)
1999		return this.layerPointToLatLng(this.mouseEventToLayerPoint(e));
2000	},
2001
2002
2003	// map initialization methods
2004
2005	_initContainer: function (id) {
2006		var container = this._container = L.DomUtil.get(id);
2007
2008		if (!container) {
2009			throw new Error('Map container not found.');
2010		} else if (container._leaflet) {
2011			throw new Error('Map container is already initialized.');
2012		}
2013
2014		container._leaflet = true;
2015	},
2016
2017	_initLayout: function () {
2018		var container = this._container;
2019
2020		L.DomUtil.addClass(container, 'leaflet-container' +
2021			(L.Browser.touch ? ' leaflet-touch' : '') +
2022			(L.Browser.retina ? ' leaflet-retina' : '') +
2023			(L.Browser.ielt9 ? ' leaflet-oldie' : '') +
2024			(this.options.fadeAnimation ? ' leaflet-fade-anim' : ''));
2025
2026		var position = L.DomUtil.getStyle(container, 'position');
2027
2028		if (position !== 'absolute' && position !== 'relative' && position !== 'fixed') {
2029			container.style.position = 'relative';
2030		}
2031
2032		this._initPanes();
2033
2034		if (this._initControlPos) {
2035			this._initControlPos();
2036		}
2037	},
2038
2039	_initPanes: function () {
2040		var panes = this._panes = {};
2041
2042		this._mapPane = panes.mapPane = this._createPane('leaflet-map-pane', this._container);
2043
2044		this._tilePane = panes.tilePane = this._createPane('leaflet-tile-pane', this._mapPane);
2045		panes.objectsPane = this._createPane('leaflet-objects-pane', this._mapPane);

2046		panes.shadowPane = this._createPane('leaflet-shadow-pane');
2047		panes.overlayPane = this._createPane('leaflet-overlay-pane');
2048		panes.markerPane = this._createPane('leaflet-marker-pane');
2049		panes.popupPane = this._createPane('leaflet-popup-pane');
2050
2051		var zoomHide = ' leaflet-zoom-hide';
2052
2053		if (!this.options.markerZoomAnimation) {
2054			L.DomUtil.addClass(panes.markerPane, zoomHide);
2055			L.DomUtil.addClass(panes.shadowPane, zoomHide);
2056			L.DomUtil.addClass(panes.popupPane, zoomHide);
2057		}
2058	},
2059
2060	_createPane: function (className, container) {
2061		return L.DomUtil.create('div', className, container || this._panes.objectsPane);
2062	},
2063
2064	_clearPanes: function () {
2065		this._container.removeChild(this._mapPane);
2066	},
2067
2068	_addLayers: function (layers) {
2069		layers = layers ? (L.Util.isArray(layers) ? layers : [layers]) : [];
2070
2071		for (var i = 0, len = layers.length; i < len; i++) {
2072			this.addLayer(layers[i]);
2073		}
2074	},
2075
2076
2077	// private methods that modify map state
2078
2079	_resetView: function (center, zoom, preserveMapOffset, afterZoomAnim) {
2080
2081		var zoomChanged = (this._zoom !== zoom);
2082
2083		if (!afterZoomAnim) {
2084			this.fire('movestart');
2085
2086			if (zoomChanged) {
2087				this.fire('zoomstart');
2088			}
2089		}
2090
2091		this._zoom = zoom;
2092		this._initialCenter = center;
2093
2094		this._initialTopLeftPoint = this._getNewTopLeftPoint(center);
2095
2096		if (!preserveMapOffset) {
2097			L.DomUtil.setPosition(this._mapPane, new L.Point(0, 0));
2098		} else {
2099			this._initialTopLeftPoint._add(this._getMapPanePos());
2100		}
2101
2102		this._tileLayersToLoad = this._tileLayersNum;
2103
2104		var loading = !this._loaded;
2105		this._loaded = true;
2106
2107		this.fire('viewreset', {hard: !preserveMapOffset});
2108
2109		if (loading) {
2110			this.fire('load');
2111			this.eachLayer(this._layerAdd, this);
2112		}
2113
2114		this.fire('move');
2115
2116		if (zoomChanged || afterZoomAnim) {
2117			this.fire('zoomend');
2118		}
2119
2120		this.fire('moveend', {hard: !preserveMapOffset});
2121	},
2122
2123	_rawPanBy: function (offset) {
2124		L.DomUtil.setPosition(this._mapPane, this._getMapPanePos().subtract(offset));
2125	},
2126
2127	_getZoomSpan: function () {
2128		return this.getMaxZoom() - this.getMinZoom();
2129	},
2130
2131	_updateZoomLevels: function () {
2132		var i,
2133			minZoom = Infinity,
2134			maxZoom = -Infinity,
2135			oldZoomSpan = this._getZoomSpan();
2136
2137		for (i in this._zoomBoundLayers) {
2138			var layer = this._zoomBoundLayers[i];
2139			if (!isNaN(layer.options.minZoom)) {
2140				minZoom = Math.min(minZoom, layer.options.minZoom);
2141			}
2142			if (!isNaN(layer.options.maxZoom)) {
2143				maxZoom = Math.max(maxZoom, layer.options.maxZoom);
2144			}
2145		}
2146
2147		if (i === undefined) { // we have no tilelayers
2148			this._layersMaxZoom = this._layersMinZoom = undefined;
2149		} else {
2150			this._layersMaxZoom = maxZoom;
2151			this._layersMinZoom = minZoom;
2152		}
2153
2154		if (oldZoomSpan !== this._getZoomSpan()) {
2155			this.fire('zoomlevelschange');
2156		}
2157	},
2158
2159	_panInsideMaxBounds: function () {
2160		this.panInsideBounds(this.options.maxBounds);
2161	},
2162
2163	_checkIfLoaded: function () {
2164		if (!this._loaded) {
2165			throw new Error('Set map center and zoom first.');
2166		}
2167	},
2168
2169	// map events
2170
2171	_initEvents: function (onOff) {
2172		if (!L.DomEvent) { return; }
2173
2174		onOff = onOff || 'on';
2175
2176		L.DomEvent[onOff](this._container, 'click', this._onMouseClick, this);
2177
2178		var events = ['dblclick', 'mousedown', 'mouseup', 'mouseenter',
2179		              'mouseleave', 'mousemove', 'contextmenu'],
2180		    i, len;
2181
2182		for (i = 0, len = events.length; i < len; i++) {
2183			L.DomEvent[onOff](this._container, events[i], this._fireMouseEvent, this);
2184		}
2185
2186		if (this.options.trackResize) {
2187			L.DomEvent[onOff](window, 'resize', this._onResize, this);
2188		}
2189	},
2190
2191	_onResize: function () {
2192		L.Util.cancelAnimFrame(this._resizeRequest);
2193		this._resizeRequest = L.Util.requestAnimFrame(
2194		        function () { this.invalidateSize({debounceMoveend: true}); }, this, false, this._container);
2195	},
2196
2197	_onMouseClick: function (e) {
2198		if (!this._loaded || (!e._simulated &&
2199		        ((this.dragging && this.dragging.moved()) ||
2200		         (this.boxZoom  && this.boxZoom.moved()))) ||
2201		            L.DomEvent._skipped(e)) { return; }
2202
2203		this.fire('preclick');
2204		this._fireMouseEvent(e);
2205	},
2206
2207	_fireMouseEvent: function (e) {
2208		if (!this._loaded || L.DomEvent._skipped(e)) { return; }
2209
2210		var type = e.type;
2211
2212		type = (type === 'mouseenter' ? 'mouseover' : (type === 'mouseleave' ? 'mouseout' : type));
2213
2214		if (!this.hasEventListeners(type)) { return; }
2215
2216		if (type === 'contextmenu') {
2217			L.DomEvent.preventDefault(e);
2218		}
2219
2220		var containerPoint = this.mouseEventToContainerPoint(e),
2221		    layerPoint = this.containerPointToLayerPoint(containerPoint),
2222		    latlng = this.layerPointToLatLng(layerPoint);
2223
2224		this.fire(type, {
2225			latlng: latlng,
2226			layerPoint: layerPoint,
2227			containerPoint: containerPoint,
2228			originalEvent: e
2229		});
2230	},
2231
2232	_onTileLayerLoad: function () {
2233		this._tileLayersToLoad--;
2234		if (this._tileLayersNum && !this._tileLayersToLoad) {
2235			this.fire('tilelayersload');
2236		}
2237	},
2238
2239	_clearHandlers: function () {
2240		for (var i = 0, len = this._handlers.length; i < len; i++) {
2241			this._handlers[i].disable();
2242		}
2243	},
2244
2245	whenReady: function (callback, context) {
2246		if (this._loaded) {
2247			callback.call(context || this, this);
2248		} else {
2249			this.on('load', callback, context);
2250		}
2251		return this;
2252	},
2253
2254	_layerAdd: function (layer) {
2255		layer.onAdd(this);
2256		this.fire('layeradd', {layer: layer});
2257	},
2258
2259
2260	// private methods for getting map state
2261
2262	_getMapPanePos: function () {
2263		return L.DomUtil.getPosition(this._mapPane);
2264	},
2265
2266	_moved: function () {
2267		var pos = this._getMapPanePos();
2268		return pos && !pos.equals([0, 0]);
2269	},
2270
2271	_getTopLeftPoint: function () {
2272		return this.getPixelOrigin().subtract(this._getMapPanePos());
2273	},
2274
2275	_getNewTopLeftPoint: function (center, zoom) {

2276		var viewHalf = this.getSize()._divideBy(2);
2277		// TODO round on display, not calculation to increase precision?
2278		return this.project(center, zoom)._subtract(viewHalf)._round();
2279	},
2280
2281	_latLngToNewLayerPoint: function (latlng, newZoom, newCenter) {
2282		var topLeft = this._getNewTopLeftPoint(newCenter, newZoom).add(this._getMapPanePos());
2283		return this.project(latlng, newZoom)._subtract(topLeft);
2284	},
2285
2286	// layer point of the current center
2287	_getCenterLayerPoint: function () {
2288		return this.containerPointToLayerPoint(this.getSize()._divideBy(2));
2289	},
2290
2291	// offset of the specified place to the current center in pixels
2292	_getCenterOffset: function (latlng) {
2293		return this.latLngToLayerPoint(latlng).subtract(this._getCenterLayerPoint());
2294	},
2295
2296	// adjust center for view to get inside bounds
2297	_limitCenter: function (center, zoom, bounds) {
2298
2299		if (!bounds) { return center; }
2300
2301		var centerPoint = this.project(center, zoom),
2302		    viewHalf = this.getSize().divideBy(2),
2303		    viewBounds = new L.Bounds(centerPoint.subtract(viewHalf), centerPoint.add(viewHalf)),
2304		    offset = this._getBoundsOffset(viewBounds, bounds, zoom);
2305
2306		return this.unproject(centerPoint.add(offset), zoom);
2307	},
2308
2309	// adjust offset for view to get inside bounds
2310	_limitOffset: function (offset, bounds) {
2311		if (!bounds) { return offset; }
2312
2313		var viewBounds = this.getPixelBounds(),
2314		    newBounds = new L.Bounds(viewBounds.min.add(offset), viewBounds.max.add(offset));
2315
2316		return offset.add(this._getBoundsOffset(newBounds, bounds));
2317	},
2318
2319	// returns offset needed for pxBounds to get inside maxBounds at a specified zoom
2320	_getBoundsOffset: function (pxBounds, maxBounds, zoom) {
2321		var nwOffset = this.project(maxBounds.getNorthWest(), zoom).subtract(pxBounds.min),
2322		    seOffset = this.project(maxBounds.getSouthEast(), zoom).subtract(pxBounds.max),
2323
2324		    dx = this._rebound(nwOffset.x, -seOffset.x),
2325		    dy = this._rebound(nwOffset.y, -seOffset.y);
2326
2327		return new L.Point(dx, dy);
2328	},
2329
2330	_rebound: function (left, right) {
2331		return left + right > 0 ?
2332			Math.round(left - right) / 2 :
2333			Math.max(0, Math.ceil(left)) - Math.max(0, Math.floor(right));
2334	},
2335
2336	_limitZoom: function (zoom) {
2337		var min = this.getMinZoom(),
2338		    max = this.getMaxZoom();
2339
2340		return Math.max(min, Math.min(max, zoom));
2341	}
2342});
2343
2344L.map = function (id, options) {
2345	return new L.Map(id, options);
2346};
2347
2348
2349/*
2350 * Mercator projection that takes into account that the Earth is not a perfect sphere.
2351 * Less popular than spherical mercator; used by projections like EPSG:3395.
2352 */
2353
2354L.Projection.Mercator = {
2355	MAX_LATITUDE: 85.0840591556,
2356
2357	R_MINOR: 6356752.314245179,
2358	R_MAJOR: 6378137,
2359
2360	project: function (latlng) { // (LatLng) -> Point
2361		var d = L.LatLng.DEG_TO_RAD,
2362		    max = this.MAX_LATITUDE,
2363		    lat = Math.max(Math.min(max, latlng.lat), -max),
2364		    r = this.R_MAJOR,
2365		    r2 = this.R_MINOR,
2366		    x = latlng.lng * d * r,
2367		    y = lat * d,
2368		    tmp = r2 / r,
2369		    eccent = Math.sqrt(1.0 - tmp * tmp),
2370		    con = eccent * Math.sin(y);
2371
2372		con = Math.pow((1 - con) / (1 + con), eccent * 0.5);
2373
2374		var ts = Math.tan(0.5 * ((Math.PI * 0.5) - y)) / con;
2375		y = -r * Math.log(ts);
2376
2377		return new L.Point(x, y);
2378	},
2379
2380	unproject: function (point) { // (Point, Boolean) -> LatLng
2381		var d = L.LatLng.RAD_TO_DEG,
2382		    r = this.R_MAJOR,
2383		    r2 = this.R_MINOR,
2384		    lng = point.x * d / r,
2385		    tmp = r2 / r,
2386		    eccent = Math.sqrt(1 - (tmp * tmp)),
2387		    ts = Math.exp(- point.y / r),
2388		    phi = (Math.PI / 2) - 2 * Math.atan(ts),
2389		    numIter = 15,
2390		    tol = 1e-7,
2391		    i = numIter,
2392		    dphi = 0.1,
2393		    con;
2394
2395		while ((Math.abs(dphi) > tol) && (--i > 0)) {
2396			con = eccent * Math.sin(phi);
2397			dphi = (Math.PI / 2) - 2 * Math.atan(ts *
2398			            Math.pow((1.0 - con) / (1.0 + con), 0.5 * eccent)) - phi;
2399			phi += dphi;
2400		}
2401
2402		return new L.LatLng(phi * d, lng);
2403	}
2404};
2405
2406
2407
2408L.CRS.EPSG3395 = L.extend({}, L.CRS, {
2409	code: 'EPSG:3395',
2410
2411	projection: L.Projection.Mercator,
2412
2413	transformation: (function () {
2414		var m = L.Projection.Mercator,
2415		    r = m.R_MAJOR,
2416		    scale = 0.5 / (Math.PI * r);
2417
2418		return new L.Transformation(scale, 0.5, -scale, 0.5);
2419	}())
2420});
2421
2422
2423/*
2424 * L.TileLayer is used for standard xyz-numbered tile layers.
2425 */
2426
2427L.TileLayer = L.Class.extend({
2428	includes: L.Mixin.Events,
2429
2430	options: {
2431		minZoom: 0,
2432		maxZoom: 18,
2433		tileSize: 256,
2434		subdomains: 'abc',
2435		errorTileUrl: '',
2436		attribution: '',
2437		zoomOffset: 0,
2438		opacity: 1,
2439		/*
2440		maxNativeZoom: null,
2441		zIndex: null,
2442		tms: false,
2443		continuousWorld: false,
2444		noWrap: false,
2445		zoomReverse: false,
2446		detectRetina: false,
2447		reuseTiles: false,
2448		bounds: false,
2449		*/
2450		unloadInvisibleTiles: L.Browser.mobile,
2451		updateWhenIdle: L.Browser.mobile
2452	},
2453
2454	initialize: function (url, options) {
2455		options = L.setOptions(this, options);
2456

2457		// detecting retina displays, adjusting tileSize and zoom levels
2458		if (options.detectRetina && L.Browser.retina && options.maxZoom > 0) {
2459
2460			options.tileSize = Math.floor(options.tileSize / 2);
2461			options.zoomOffset++;
2462
2463			if (options.minZoom > 0) {
2464				options.minZoom--;
2465			}
2466			this.options.maxZoom--;
2467		}
2468
2469		if (options.bounds) {
2470			options.bounds = L.latLngBounds(options.bounds);
2471		}
2472
2473		this._url = url;
2474
2475		var subdomains = this.options.subdomains;
2476
2477		if (typeof subdomains === 'string') {
2478			this.options.subdomains = subdomains.split('');
2479		}
2480	},
2481
2482	onAdd: function (map) {
2483		this._map = map;
2484		this._animated = map._zoomAnimated;
2485
2486		// create a container div for tiles
2487		this._initContainer();
2488
2489		// set up events
2490		map.on({
2491			'viewreset': this._reset,
2492			'moveend': this._update
2493		}, this);
2494
2495		if (this._animated) {
2496			map.on({
2497				'zoomanim': this._animateZoom,
2498				'zoomend': this._endZoomAnim
2499			}, this);
2500		}
2501
2502		if (!this.options.updateWhenIdle) {
2503			this._limitedUpdate = L.Util.limitExecByInterval(this._update, 150, this);
2504			map.on('move', this._limitedUpdate, this);
2505		}
2506
2507		this._reset();
2508		this._update();
2509	},
2510
2511	addTo: function (map) {
2512		map.addLayer(this);
2513		return this;
2514	},
2515
2516	onRemove: function (map) {
2517		this._container.parentNode.removeChild(this._container);
2518
2519		map.off({
2520			'viewreset': this._reset,
2521			'moveend': this._update
2522		}, this);
2523
2524		if (this._animated) {
2525			map.off({
2526				'zoomanim': this._animateZoom,
2527				'zoomend': this._endZoomAnim
2528			}, this);
2529		}
2530
2531		if (!this.options.updateWhenIdle) {
2532			map.off('move', this._limitedUpdate, this);
2533		}
2534
2535		this._container = null;
2536		this._map = null;
2537	},
2538
2539	bringToFront: function () {
2540		var pane = this._map._panes.tilePane;
2541
2542		if (this._container) {
2543			pane.appendChild(this._container);
2544			this._setAutoZIndex(pane, Math.max);
2545		}
2546
2547		return this;
2548	},
2549
2550	bringToBack: function () {
2551		var pane = this._map._panes.tilePane;
2552
2553		if (this._container) {
2554			pane.insertBefore(this._container, pane.firstChild);
2555			this._setAutoZIndex(pane, Math.min);
2556		}
2557
2558		return this;
2559	},
2560
2561	getAttribution: function () {
2562		return this.options.attribution;
2563	},
2564
2565	getContainer: function () {
2566		return this._container;
2567	},
2568
2569	setOpacity: function (opacity) {
2570		this.options.opacity = opacity;
2571
2572		if (this._map) {
2573			this._updateOpacity();
2574		}
2575
2576		return this;
2577	},
2578
2579	setZIndex: function (zIndex) {
2580		this.options.zIndex = zIndex;
2581		this._updateZIndex();
2582
2583		return this;
2584	},
2585
2586	setUrl: function (url, noRedraw) {
2587		this._url = url;
2588
2589		if (!noRedraw) {
2590			this.redraw();
2591		}
2592
2593		return this;
2594	},
2595
2596	redraw: function () {
2597		if (this._map) {
2598			this._reset({hard: true});
2599			this._update();
2600		}
2601		return this;
2602	},
2603
2604	_updateZIndex: function () {
2605		if (this._container && this.options.zIndex !== undefined) {
2606			this._container.style.zIndex = this.options.zIndex;
2607		}
2608	},
2609
2610	_setAutoZIndex: function (pane, compare) {
2611
2612		var layers = pane.children,
2613		    edgeZIndex = -compare(Infinity, -Infinity), // -Infinity for max, Infinity for min
2614		    zIndex, i, len;
2615
2616		for (i = 0, len = layers.length; i < len; i++) {
2617
2618			if (layers[i] !== this._container) {
2619				zIndex = parseInt(layers[i].style.zIndex, 10);
2620
2621				if (!isNaN(zIndex)) {
2622					edgeZIndex = compare(edgeZIndex, zIndex);
2623				}
2624			}
2625		}
2626
2627		this.options.zIndex = this._container.style.zIndex =
2628		        (isFinite(edgeZIndex) ? edgeZIndex : 0) + compare(1, -1);
2629	},
2630
2631	_updateOpacity: function () {
2632		var i,
2633		    tiles = this._tiles;
2634
2635		if (L.Browser.ielt9) {
2636			for (i in tiles) {
2637				L.DomUtil.setOpacity(tiles[i], this.options.opacity);
2638			}
2639		} else {
2640			L.DomUtil.setOpacity(this._container, this.options.opacity);
2641		}
2642	},
2643
2644	_initContainer: function () {
2645		var tilePane = this._map._panes.tilePane;
2646
2647		if (!this._container) {
2648			this._container = L.DomUtil.create('div', 'leaflet-layer');
2649
2650			this._updateZIndex();
2651
2652			if (this._animated) {
2653				var className = 'leaflet-tile-container';
2654
2655				this._bgBuffer = L.DomUtil.create('div', className, this._container);
2656				this._tileContainer = L.DomUtil.create('div', className, this._container);
2657
2658			} else {
2659				this._tileContainer = this._container;
2660			}
2661
2662			tilePane.appendChild(this._container);
2663
2664			if (this.options.opacity < 1) {
2665				this._updateOpacity();
2666			}
2667		}
2668	},
2669
2670	_reset: function (e) {
2671		for (var key in this._tiles) {
2672			this.fire('tileunload', {tile: this._tiles[key]});
2673		}
2674
2675		this._tiles = {};
2676		this._tilesToLoad = 0;
2677
2678		if (this.options.reuseTiles) {
2679			this._unusedTiles = [];
2680		}
2681
2682		this._tileContainer.innerHTML = '';
2683
2684		if (this._animated && e && e.hard) {
2685			this._clearBgBuffer();
2686		}
2687
2688		this._initContainer();
2689	},
2690
2691	_getTileSize: function () {
2692		var map = this._map,
2693		    zoom = map.getZoom() + this.options.zoomOffset,
2694		    zoomN = this.options.maxNativeZoom,
2695		    tileSize = this.options.tileSize;
2696
2697		if (zoomN && zoom > zoomN) {
2698			tileSize = Math.round(map.getZoomScale(zoom) / map.getZoomScale(zoomN) * tileSize);
2699		}
2700
2701		return tileSize;
2702	},
2703
2704	_update: function () {
2705
2706		if (!this._map) { return; }
2707
2708		var map = this._map,
2709		    bounds = map.getPixelBounds(),
2710		    zoom = map.getZoom(),
2711		    tileSize = this._getTileSize();
2712
2713		if (zoom > this.options.maxZoom || zoom < this.options.minZoom) {
2714			return;
2715		}
2716
2717		var tileBounds = L.bounds(
2718		        bounds.min.divideBy(tileSize)._floor(),
2719		        bounds.max.divideBy(tileSize)._floor());
2720
2721		this._addTilesFromCenterOut(tileBounds);
2722
2723		if (this.options.unloadInvisibleTiles || this.options.reuseTiles) {
2724			this._removeOtherTiles(tileBounds);
2725		}
2726	},
2727
2728	_addTilesFromCenterOut: function (bounds) {
2729		var queue = [],
2730		    center = bounds.getCenter();
2731
2732		var j, i, point;
2733
2734		for (j = bounds.min.y; j <= bounds.max.y; j++) {
2735			for (i = bounds.min.x; i <= bounds.max.x; i++) {
2736				point = new L.Point(i, j);
2737
2738				if (this._tileShouldBeLoaded(point)) {
2739					queue.push(point);
2740				}
2741			}
2742		}
2743
2744		var tilesToLoad = queue.length;
2745
2746		if (tilesToLoad === 0) { return; }
2747
2748		// load tiles in order of their distance to center
2749		queue.sort(function (a, b) {
2750			return a.distanceTo(center) - b.distanceTo(center);
2751		});
2752
2753		var fragment = document.createDocumentFragment();
2754
2755		// if its the first batch of tiles to load
2756		if (!this._tilesToLoad) {
2757			this.fire('loading');
2758		}
2759

2760		this._tilesToLoad += tilesToLoad;
2761
2762		for (i = 0; i < tilesToLoad; i++) {
2763			this._addTile(queue[i], fragment);
2764		}
2765
2766		this._tileContainer.appendChild(fragment);
2767	},
2768
2769	_tileShouldBeLoaded: function (tilePoint) {
2770		if ((tilePoint.x + ':' + tilePoint.y) in this._tiles) {
2771			return false; // already loaded
2772		}
2773
2774		var options = this.options;
2775
2776		if (!options.continuousWorld) {
2777			var limit = this._getWrapTileNum();
2778
2779			// don't load if exceeds world bounds
2780			if ((options.noWrap && (tilePoint.x < 0 || tilePoint.x >= limit.x)) ||
2781				tilePoint.y < 0 || tilePoint.y >= limit.y) { return false; }
2782		}
2783
2784		if (options.bounds) {
2785			var tileSize = options.tileSize,
2786			    nwPoint = tilePoint.multiplyBy(tileSize),
2787			    sePoint = nwPoint.add([tileSize, tileSize]),
2788			    nw = this._map.unproject(nwPoint),
2789			    se = this._map.unproject(sePoint);
2790
2791			// TODO temporary hack, will be removed after refactoring projections
2792			// https://github.com/Leaflet/Leaflet/issues/1618
2793			if (!options.continuousWorld && !options.noWrap) {
2794				nw = nw.wrap();
2795				se = se.wrap();
2796			}
2797
2798			if (!options.bounds.intersects([nw, se])) { return false; }
2799		}
2800
2801		return true;
2802	},
2803
2804	_removeOtherTiles: function (bounds) {
2805		var kArr, x, y, key;
2806
2807		for (key in this._tiles) {
2808			kArr = key.split(':');
2809			x = parseInt(kArr[0], 10);
2810			y = parseInt(kArr[1], 10);
2811
2812			// remove tile if it's out of bounds
2813			if (x < bounds.min.x || x > bounds.max.x || y < bounds.min.y || y > bounds.max.y) {
2814				this._removeTile(key);
2815			}
2816		}
2817	},
2818
2819	_removeTile: function (key) {
2820		var tile = this._tiles[key];
2821
2822		this.fire('tileunload', {tile: tile, url: tile.src});
2823
2824		if (this.options.reuseTiles) {
2825			L.DomUtil.removeClass(tile, 'leaflet-tile-loaded');
2826			this._unusedTiles.push(tile);
2827
2828		} else if (tile.parentNode === this._tileContainer) {
2829			this._tileContainer.removeChild(tile);
2830		}
2831
2832		// for https://github.com/CloudMade/Leaflet/issues/137
2833		if (!L.Browser.android) {
2834			tile.onload = null;
2835			tile.src = L.Util.emptyImageUrl;
2836		}
2837
2838		delete this._tiles[key];
2839	},
2840
2841	_addTile: function (tilePoint, container) {
2842		var tilePos = this._getTilePos(tilePoint);
2843
2844		// get unused tile - or create a new tile
2845		var tile = this._getTile();
2846
2847		/*
2848		Chrome 20 layouts much faster with top/left (verify with timeline, frames)

2849		Android 4 browser has display issues with top/left and requires transform instead
2850		(other browsers don't currently care) - see debug/hacks/jitter.html for an example
2851		*/
2852		L.DomUtil.setPosition(tile, tilePos, L.Browser.chrome);
2853
2854		this._tiles[tilePoint.x + ':' + tilePoint.y] = tile;
2855
2856		this._loadTile(tile, tilePoint);
2857
2858		if (tile.parentNode !== this._tileContainer) {
2859			container.appendChild(tile);
2860		}
2861	},
2862
2863	_getZoomForUrl: function () {
2864
2865		var options = this.options,
2866		    zoom = this._map.getZoom();
2867
2868		if (options.zoomReverse) {
2869			zoom = options.maxZoom - zoom;
2870		}
2871
2872		zoom += options.zoomOffset;
2873
2874		return options.maxNativeZoom ? Math.min(zoom, options.maxNativeZoom) : zoom;
2875	},
2876
2877	_getTilePos: function (tilePoint) {
2878		var origin = this._map.getPixelOrigin(),
2879		    tileSize = this._getTileSize();
2880
2881		return tilePoint.multiplyBy(tileSize).subtract(origin);
2882	},
2883
2884	// image-specific code (override to implement e.g. Canvas or SVG tile layer)
2885
2886	getTileUrl: function (tilePoint) {
2887		return L.Util.template(this._url, L.extend({
2888			s: this._getSubdomain(tilePoint),
2889			z: tilePoint.z,
2890			x: tilePoint.x,
2891			y: tilePoint.y
2892		}, this.options));
2893	},
2894
2895	_getWrapTileNum: function () {
2896		var crs = this._map.options.crs,
2897		    size = crs.getSize(this._map.getZoom());
2898		return size.divideBy(this._getTileSize())._floor();
2899	},
2900
2901	_adjustTilePoint: function (tilePoint) {
2902
2903		var limit = this._getWrapTileNum();
2904
2905		// wrap tile coordinates
2906		if (!this.options.continuousWorld && !this.options.noWrap) {
2907			tilePoint.x = ((tilePoint.x % limit.x) + limit.x) % limit.x;
2908		}
2909
2910		if (this.options.tms) {
2911			tilePoint.y = limit.y - tilePoint.y - 1;
2912		}
2913
2914		tilePoint.z = this._getZoomForUrl();
2915	},
2916
2917	_getSubdomain: function (tilePoint) {
2918		var index = Math.abs(tilePoint.x + tilePoint.y) % this.options.subdomains.length;
2919		return this.options.subdomains[index];
2920	},
2921
2922	_getTile: function () {
2923		if (this.options.reuseTiles && this._unusedTiles.length > 0) {
2924			var tile = this._unusedTiles.pop();
2925			this._resetTile(tile);
2926			return tile;
2927		}
2928		return this._createTile();
2929	},
2930
2931	// Override if data stored on a tile needs to be cleaned up before reuse
2932	_resetTile: function (/*tile*/) {},
2933
2934	_createTile: function () {
2935		var tile = L.DomUtil.create('img', 'leaflet-tile');
2936		tile.style.width = tile.style.height = this._getTileSize() + 'px';
2937		tile.galleryimg = 'no';
2938
2939		tile.onselectstart = tile.onmousemove = L.Util.falseFn;
2940
2941		if (L.Browser.ielt9 && this.options.opacity !== undefined) {
2942			L.DomUtil.setOpacity(tile, this.options.opacity);
2943		}
2944		// without this hack, tiles disappear after zoom on Chrome for Android
2945		// https://github.com/Leaflet/Leaflet/issues/2078
2946		if (L.Browser.mobileWebkit3d) {
2947			tile.style.WebkitBackfaceVisibility = 'hidden';
2948		}
2949		return tile;
2950	},
2951
2952	_loadTile: function (tile, tilePoint) {
2953		tile._layer  = this;
2954		tile.onload  = this._tileOnLoad;
2955		tile.onerror = this._tileOnError;
2956
2957		this._adjustTilePoint(tilePoint);
2958		tile.src     = this.getTileUrl(tilePoint);
2959
2960		this.fire('tileloadstart', {
2961			tile: tile,
2962			url: tile.src
2963		});
2964	},
2965
2966	_tileLoaded: function () {
2967		this._tilesToLoad--;
2968
2969		if (this._animated) {
2970			L.DomUtil.addClass(this._tileContainer, 'leaflet-zoom-animated');
2971		}
2972
2973		if (!this._tilesToLoad) {
2974			this.fire('load');
2975
2976			if (this._animated) {
2977				// clear scaled tiles after all new tiles are loaded (for performance)
2978				clearTimeout(this._clearBgBufferTimer);
2979				this._clearBgBufferTimer = setTimeout(L.bind(this._clearBgBuffer, this), 500);
2980			}
2981		}
2982	},
2983
2984	_tileOnLoad: function () {
2985		var layer = this._layer;
2986
2987		//Only if we are loading an actual image
2988		if (this.src !== L.Util.emptyImageUrl) {
2989			L.DomUtil.addClass(this, 'leaflet-tile-loaded');
2990
2991			layer.fire('tileload', {
2992				tile: this,
2993				url: this.src
2994			});
2995		}
2996
2997		layer._tileLoaded();
2998	},
2999
3000	_tileOnError: function () {
3001		var layer = this._layer;
3002
3003		layer.fire('tileerror', {
3004			tile: this,
3005			url: this.src
3006		});
3007
3008		var newUrl = layer.options.errorTileUrl;
3009		if (newUrl) {
3010			this.src = newUrl;
3011		}
3012
3013		layer._tileLoaded();
3014	}
3015});
3016
3017L.tileLayer = function (url, options) {
3018	return new L.TileLayer(url, options);
3019};
3020
3021
3022/*
3023 * L.TileLayer.WMS is used for putting WMS tile layers on the map.
3024 */
3025
3026L.TileLayer.WMS = L.TileLayer.extend({
3027
3028	defaultWmsParams: {
3029		service: 'WMS',
3030		request: 'GetMap',
3031		version: '1.1.1',
3032		layers: '',
3033		styles: '',
3034		format: 'image/jpeg',
3035		transparent: false
3036	},
3037
3038	initialize: function (url, options) { // (String, Object)
3039
3040		this._url = url;
3041
3042		var wmsParams = L.extend({}, this.defaultWmsParams),
3043		    tileSize = options.tileSize || this.options.tileSize;
3044
3045		if (options.detectRetina && L.Browser.retina) {
3046			wmsParams.width = wmsParams.height = tileSize * 2;
3047		} else {
3048			wmsParams.width = wmsParams.height = tileSize;
3049		}
3050
3051		for (var i in options) {
3052			// all keys that are not TileLayer options go to WMS params
3053			if (!this.options.hasOwnProperty(i) && i !== 'crs') {
3054				wmsParams[i] = options[i];
3055			}
3056		}
3057
3058		this.wmsParams = wmsParams;
3059
3060		L.setOptions(this, options);
3061	},
3062
3063	onAdd: function (map) {
3064
3065		this._crs = this.options.crs || map.options.crs;
3066
3067		this._wmsVersion = parseFloat(this.wmsParams.version);
3068
3069		var projectionKey = this._wmsVersion >= 1.3 ? 'crs' : 'srs';
3070		this.wmsParams[projectionKey] = this._crs.code;
3071
3072		L.TileLayer.prototype.onAdd.call(this, map);
3073	},
3074
3075	getTileUrl: function (tilePoint) { // (Point, Number) -> String
3076
3077		var map = this._map,
3078		    tileSize = this.options.tileSize,
3079
3080		    nwPoint = tilePoint.multiplyBy(tileSize),
3081		    sePoint = nwPoint.add([tileSize, tileSize]),
3082
3083		    nw = this._crs.project(map.unproject(nwPoint, tilePoint.z)),
3084		    se = this._crs.project(map.unproject(sePoint, tilePoint.z)),
3085		    bbox = this._wmsVersion >= 1.3 && this._crs === L.CRS.EPSG4326 ?
3086		        [se.y, nw.x, nw.y, se.x].join(',') :
3087		        [nw.x, se.y, se.x, nw.y].join(','),
3088
3089		    url = L.Util.template(this._url, {s: this._getSubdomain(tilePoint)});
3090
3091		return url + L.Util.getParamString(this.wmsParams, url, true) + '&BBOX=' + bbox;
3092	},
3093
3094	setParams: function (params, noRedraw) {
3095
3096		L.extend(this.wmsParams, params);
3097
3098		if (!noRedraw) {
3099			this.redraw();
3100		}
3101
3102		return this;
3103	}
3104});
3105
3106L.tileLayer.wms = function (url, options) {
3107	return new L.TileLayer.WMS(url, options);
3108};
3109
3110
3111/*
3112 * L.TileLayer.Canvas is a class that you can use as a base for creating
3113 * dynamically drawn Canvas-based tile layers.
3114 */
3115
3116L.TileLayer.Canvas = L.TileLayer.extend({
3117	options: {
3118		async: false
3119	},
3120
3121	initialize: function (options) {
3122		L.setOptions(this, options);
3123	},
3124
3125	redraw: function () {
3126		if (this._map) {
3127			this._reset({hard: true});
3128			this._update();
3129		}
3130
3131		for (var i in this._tiles) {
3132			this._redrawTile(this._tiles[i]);
3133		}
3134		return this;
3135	},
3136
3137	_redrawTile: function (tile) {
3138		this.drawTile(tile, tile._tilePoint, this._map._zoom);
3139	},
3140
3141	_createTile: function () {
3142		var tile = L.DomUtil.create('canvas', 'leaflet-tile');
3143		tile.width = tile.height = this.options.tileSize;
3144		tile.onselectstart = tile.onmousemove = L.Util.falseFn;
3145		return tile;
3146	},
3147
3148	_loadTile: function (tile, tilePoint) {
3149		tile._layer = this;
3150		tile._tilePoint = tilePoint;
3151
3152		this._redrawTile(tile);
3153
3154		if (!this.options.async) {
3155			this.tileDrawn(tile);
3156		}
3157	},
3158
3159	drawTile: function (/*tile, tilePoint*/) {
3160		// override with rendering code
3161	},
3162
3163	tileDrawn: function (tile) {

3164		this._tileOnLoad.call(tile);
3165	}
3166});
3167
3168
3169L.tileLayer.canvas = function (options) {
3170	return new L.TileLayer.Canvas(options);
3171};
3172
3173
3174/*
3175 * L.ImageOverlay is used to overlay images over the map (to specific geographical bounds).
3176 */
3177
3178L.ImageOverlay = L.Class.extend({
3179	includes: L.Mixin.Events,
3180
3181	options: {
3182		opacity: 1
3183	},
3184
3185	initialize: function (url, bounds, options) { // (String, LatLngBounds, Object)
3186		this._url = url;
3187		this._bounds = L.latLngBounds(bounds);
3188
3189		L.setOptions(this, options);
3190	},
3191
3192	onAdd: function (map) {
3193		this._map = map;
3194
3195		if (!this._image) {
3196			this._initImage();
3197		}
3198
3199		map._panes.overlayPane.appendChild(this._image);
3200
3201		map.on('viewreset', this._reset, this);
3202
3203		if (map.options.zoomAnimation && L.Browser.any3d) {
3204			map.on('zoomanim', this._animateZoom, this);
3205		}
3206
3207		this._reset();
3208	},
3209
3210	onRemove: function (map) {
3211		map.getPanes().overlayPane.removeChild(this._image);
3212
3213		map.off('viewreset', this._reset, this);
3214
3215		if (map.options.zoomAnimation) {
3216			map.off('zoomanim', this._animateZoom, this);
3217		}
3218	},
3219
3220	addTo: function (map) {
3221		map.addLayer(this);
3222		return this;
3223	},
3224
3225	setOpacity: function (opacity) {
3226		this.options.opacity = opacity;
3227		this._updateOpacity();
3228		return this;
3229	},
3230
3231	// TODO remove bringToFront/bringToBack duplication from TileLayer/Path
3232	bringToFront: function () {
3233		if (this._image) {
3234			this._map._panes.overlayPane.appendChild(this._image);
3235		}
3236		return this;
3237	},
3238
3239	bringToBack: function () {
3240		var pane = this._map._panes.overlayPane;
3241		if (this._image) {
3242			pane.insertBefore(this._image, pane.firstChild);
3243		}
3244		return this;
3245	},
3246
3247	setUrl: function (url) {
3248		this._url = url;
3249		this._image.src = this._url;
3250	},
3251
3252	getAttribution: function () {
3253		return this.options.attribution;
3254	},
3255
3256	_initImage: function () {
3257		this._image = L.DomUtil.create('img', 'leaflet-image-layer');
3258
3259		if (this._map.options.zoomAnimation && L.Browser.any3d) {
3260			L.DomUtil.addClass(this._image, 'leaflet-zoom-animated');
3261		} else {
3262			L.DomUtil.addClass(this._image, 'leaflet-zoom-hide');
3263		}
3264
3265		this._updateOpacity();
3266
3267		//TODO createImage util method to remove duplication
3268		L.extend(this._image, {
3269			galleryimg: 'no',
3270			onselectstart: L.Util.falseFn,
3271			onmousemove: L.Util.falseFn,
3272			onload: L.bind(this._onImageLoad, this),
3273			src: this._url
3274		});
3275	},
3276
3277	_animateZoom: function (e) {
3278		var map = this._map,
3279		    image = this._image,
3280		    scale = map.getZoomScale(e.zoom),
3281		    nw = this._bounds.getNorthWest(),
3282		    se = this._bounds.getSouthEast(),
3283
3284		    topLeft = map._latLngToNewLayerPoint(nw, e.zoom, e.center),
3285		    size = map._latLngToNewLayerPoint(se, e.zoom, e.center)._subtract(topLeft),
3286		    origin = topLeft._add(size._multiplyBy((1 / 2) * (1 - 1 / scale)));
3287
3288		image.style[L.DomUtil.TRANSFORM] =
3289		        L.DomUtil.getTranslateString(origin) + ' scale(' + scale + ') ';
3290	},
3291
3292	_reset: function () {
3293		var image   = this._image,
3294		    topLeft = this._map.latLngToLayerPoint(this._bounds.getNorthWest()),
3295		    size = this._map.latLngToLayerPoint(this._bounds.getSouthEast())._subtract(topLeft);
3296
3297		L.DomUtil.setPosition(image, topLeft);
3298
3299		image.style.width  = size.x + 'px';
3300		image.style.height = size.y + 'px';
3301	},
3302
3303	_onImageLoad: function () {
3304		this.fire('load');
3305	},
3306
3307	_updateOpacity: function () {
3308		L.DomUtil.setOpacity(this._image, this.options.opacity);
3309	}
3310});
3311
3312L.imageOverlay = function (url, bounds, options) {
3313	return new L.ImageOverlay(url, bounds, options);
3314};
3315
3316
3317/*
3318 * L.Icon is an image-based icon class that you can use with L.Marker for custom markers.
3319 */
3320
3321L.Icon = L.Class.extend({
3322	options: {
3323		/*
3324		iconUrl: (String) (required)
3325		iconRetinaUrl: (String) (optional, used for retina devices if detected)
3326		iconSize: (Point) (can be set through CSS)
3327		iconAnchor: (Point) (centered by default, can be set in CSS with negative margins)
3328		popupAnchor: (Point) (if not specified, popup opens in the anchor point)
3329		shadowUrl: (String) (no shadow by default)
3330		shadowRetinaUrl: (String) (optional, used for retina devices if detected)
3331		shadowSize: (Point)
3332		shadowAnchor: (Point)
3333		*/
3334		className: ''
3335	},
3336
3337	initialize: function (options) {
3338		L.setOptions(this, options);
3339	},
3340
3341	createIcon: function (oldIcon) {
3342		return this._createIcon('icon', oldIcon);
3343	},
3344
3345	createShadow: function (oldIcon) {
3346		return this._createIcon('shadow', oldIcon);
3347	},
3348
3349	_createIcon: function (name, oldIcon) {
3350		var src = this._getIconUrl(name);
3351
3352		if (!src) {
3353			if (name === 'icon') {
3354				throw new Error('iconUrl not set in Icon options (see the docs).');
3355			}
3356			return null;
3357		}
3358
3359		var img;
3360		if (!oldIcon || oldIcon.tagName !== 'IMG') {

3361			img = this._createImg(src);
3362		} else {
3363			img = this._createImg(src, oldIcon);
3364		}
3365		this._setIconStyles(img, name);
3366
3367		return img;
3368	},
3369
3370	_setIconStyles: function (img, name) {
3371		var options = this.options,
3372		    size = L.point(options[name + 'Size']),
3373		    anchor;
3374
3375		if (name === 'shadow') {
3376			anchor = L.point(options.shadowAnchor || options.iconAnchor);
3377		} else {
3378			anchor = L.point(options.iconAnchor);
3379		}
3380
3381		if (!anchor && size) {
3382			anchor = size.divideBy(2, true);
3383		}
3384
3385		img.className = 'leaflet-marker-' + name + ' ' + options.className;
3386
3387		if (anchor) {
3388			img.style.marginLeft = (-anchor.x) + 'px';
3389			img.style.marginTop  = (-anchor.y) + 'px';
3390		}
3391
3392		if (size) {
3393			img.style.width  = size.x + 'px';
3394			img.style.height = size.y + 'px';
3395		}
3396	},
3397
3398	_createImg: function (src, el) {
3399		el = el || document.createElement('img');
3400		el.src = src;
3401		return el;
3402	},
3403
3404	_getIconUrl: function (name) {
3405		if (L.Browser.retina && this.options[name + 'RetinaUrl']) {
3406			return this.options[name + 'RetinaUrl'];
3407		}
3408		return this.options[name + 'Url'];
3409	}
3410});
3411
3412L.icon = function (options) {
3413	return new L.Icon(options);
3414};
3415
3416
3417/*
3418 * L.Icon.Default is the blue marker icon used by default in Leaflet.
3419 */
3420
3421L.Icon.Default = L.Icon.extend({
3422
3423	options: {
3424		iconSize: [25, 41],
3425		iconAnchor: [12, 41],
3426		popupAnchor: [1, -34],
3427
3428		shadowSize: [41, 41]
3429	},
3430
3431	_getIconUrl: function (name) {
3432		var key = name + 'Url';
3433
3434		if (this.options[key]) {
3435			return this.options[key];
3436		}
3437
3438		if (L.Browser.retina && name === 'icon') {
3439			name += '-2x';
3440		}
3441
3442		var path = L.Icon.Default.imagePath;
3443
3444		if (!path) {
3445			throw new Error('Couldn\'t autodetect L.Icon.Default.imagePath, set it manually.');
3446		}
3447
3448		return path + '/marker-' + name + '.png';
3449	}
3450});
3451
3452L.Icon.Default.imagePath = (function () {
3453	var scripts = document.getElementsByTagName('script'),
3454	    leafletRe = /[\/^]leaflet[\-\._]?([\w\-\._]*)\.js\??/;
3455
3456	var i, len, src, matches, path;
3457
3458	for (i = 0, len = scripts.length; i < len; i++) {
3459		src = scripts[i].src;
3460		matches = src.match(leafletRe);
3461
3462		if (matches) {
3463			path = src.split(leafletRe)[0];
3464			return (path ? path + '/' : '') + 'images';
3465		}
3466	}
3467}());
3468
3469
3470/*
3471 * L.Marker is used to display clickable/draggable icons on the map.
3472 */
3473
3474L.Marker = L.Class.extend({
3475
3476	includes: L.Mixin.Events,
3477
3478	options: {
3479		icon: new L.Icon.Default(),
3480		title: '',
3481		alt: '',
3482		clickable: true,
3483		draggable: false,
3484		keyboard: true,
3485		zIndexOffset: 0,
3486		opacity: 1,
3487		riseOnHover: false,
3488		riseOffset: 250
3489	},
3490
3491	initialize: function (latlng, options) {
3492		L.setOptions(this, options);
3493		this._latlng = L.latLng(latlng);
3494	},
3495
3496	onAdd: function (map) {
3497		this._map = map;
3498
3499		map.on('viewreset', this.update, this);
3500
3501		this._initIcon();
3502		this.update();
3503		this.fire('add');
3504
3505		if (map.options.zoomAnimation && map.options.markerZoomAnimation) {
3506			map.on('zoomanim', this._animateZoom, this);
3507		}
3508	},
3509
3510	addTo: function (map) {
3511		map.addLayer(this);
3512		return this;
3513	},
3514
3515	onRemove: function (map) {
3516		if (this.dragging) {
3517			this.dragging.disable();
3518		}
3519
3520		this._removeIcon();
3521		this._removeShadow();
3522
3523		this.fire('remove');
3524
3525		map.off({
3526			'viewreset': this.update,
3527			'zoomanim': this._animateZoom
3528		}, this);
3529
3530		this._map = null;
3531	},
3532
3533	getLatLng: function () {
3534		return this._latlng;
3535	},
3536
3537	setLatLng: function (latlng) {
3538		this._latlng = L.latLng(latlng);
3539
3540		this.update();
3541
3542		return this.fire('move', { latlng: this._latlng });
3543	},
3544
3545	setZIndexOffset: function (offset) {
3546		this.options.zIndexOffset = offset;
3547		this.update();
3548
3549		return this;
3550	},
3551
3552	setIcon: function (icon) {
3553
3554		this.options.icon = icon;
3555
3556		if (this._map) {
3557			this._initIcon();
3558			this.update();
3559		}
3560
3561		if (this._popup) {
3562			this.bindPopup(this._popup);
3563		}
3564
3565		return this;
3566	},
3567
3568	update: function () {
3569		if (this._icon) {
3570			var pos = this._map.latLngToLayerPoint(this._latlng).round();
3571			this._setPos(pos);
3572		}
3573
3574		return this;
3575	},
3576
3577	_initIcon: function () {
3578		var options = this.options,
3579		    map = this._map,
3580		    animation = (map.options.zoomAnimation && map.options.markerZoomAnimation),
3581		    classToAdd = animation ? 'leaflet-zoom-animated' : 'leaflet-zoom-hide';
3582
3583		var icon = options.icon.createIcon(this._icon),
3584			addIcon = false;

3585
3586		// if we're not reusing the icon, remove the old one and init new one
3587		if (icon !== this._icon) {
3588			if (this._icon) {
3589				this._removeIcon();
3590			}
3591			addIcon = true;
3592
3593			if (options.title) {
3594				icon.title = options.title;
3595			}
3596			
3597			if (options.alt) {
3598				icon.alt = options.alt;
3599			}
3600		}
3601
3602		L.DomUtil.addClass(icon, classToAdd);
3603
3604		if (options.keyboard) {
3605			icon.tabIndex = '0';
3606		}
3607
3608		this._icon = icon;
3609
3610		this._initInteraction();
3611
3612		if (options.riseOnHover) {
3613			L.DomEvent
3614				.on(icon, 'mouseover', this._bringToFront, this)
3615				.on(icon, 'mouseout', this._resetZIndex, this);
3616		}
3617
3618		var newShadow = options.icon.createShadow(this._shadow),
3619			addShadow = false;
3620
3621		if (newShadow !== this._shadow) {
3622			this._removeShadow();
3623			addShadow = true;
3624		}
3625
3626		if (newShadow) {
3627			L.DomUtil.addClass(newShadow, classToAdd);
3628		}
3629		this._shadow = newShadow;
3630
3631
3632		if (options.opacity < 1) {
3633			this._updateOpacity();
3634		}
3635
3636
3637		var panes = this._map._panes;
3638
3639		if (addIcon) {
3640			panes.markerPane.appendChild(this._icon);
3641		}
3642
3643		if (newShadow && addShadow) {
3644			panes.shadowPane.appendChild(this._shadow);
3645		}
3646	},
3647
3648	_removeIcon: function () {
3649		if (this.options.riseOnHover) {
3650			L.DomEvent
3651			    .off(this._icon, 'mouseover', this._bringToFront)
3652			    .off(this._icon, 'mouseout', this._resetZIndex);
3653		}
3654
3655		this._map._panes.markerPane.removeChild(this._icon);
3656
3657		this._icon = null;
3658	},
3659
3660	_removeShadow: function () {
3661		if (this._shadow) {
3662			this._map._panes.shadowPane.removeChild(this._shadow);
3663		}
3664		this._shadow = null;
3665	},
3666
3667	_setPos: function (pos) {
3668		L.DomUtil.setPosition(this._icon, pos);
3669
3670		if (this._shadow) {
3671			L.DomUtil.setPosition(this._shadow, pos);
3672		}
3673
3674		this._zIndex = pos.y + this.options.zIndexOffset;
3675
3676		this._resetZIndex();
3677	},
3678
3679	_updateZIndex: function (offset) {
3680		this._icon.style.zIndex = this._zIndex + offset;
3681	},
3682
3683	_animateZoom: function (opt) {
3684		var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center).round();
3685
3686		this._setPos(pos);
3687	},
3688
3689	_initInteraction: function () {
3690
3691		if (!this.options.clickable) { return; }
3692
3693		// TODO refactor into something shared with Map/Path/etc. to DRY it up
3694
3695		var icon = this._icon,
3696		    events = ['dblclick', 'mousedown', 'mouseover', 'mouseout', 'contextmenu'];
3697
3698		L.DomUtil.addClass(icon, 'leaflet-clickable');
3699		L.DomEvent.on(icon, 'click', this._onMouseClick, this);
3700		L.DomEvent.on(icon, 'keypress', this._onKeyPress, this);
3701
3702		for (var i = 0; i < events.length; i++) {
3703			L.DomEvent.on(icon, events[i], this._fireMouseEvent, this);
3704		}
3705
3706		if (L.Handler.MarkerDrag) {
3707			this.dragging = new L.Handler.MarkerDrag(this);
3708
3709			if (this.options.draggable) {
3710				this.dragging.enable();
3711			}
3712		}
3713	},
3714
3715	_onMouseClick: function (e) {
3716		var wasDragged = this.dragging && this.dragging.moved();
3717
3718		if (this.hasEventListeners(e.type) || wasDragged) {
3719			L.DomEvent.stopPropagation(e);
3720		}
3721
3722		if (wasDragged) { return; }
3723
3724		if ((!this.dragging || !this.dragging._enabled) && this._map.dragging && this._map.dragging.moved()) { return; }
3725
3726		this.fire(e.type, {
3727			originalEvent: e,
3728			latlng: this._latlng
3729		});
3730	},
3731
3732	_onKeyPress: function (e) {
3733		if (e.keyCode === 13) {
3734			this.fire('click', {
3735				originalEvent: e,
3736				latlng: this._latlng
3737			});
3738		}
3739	},
3740
3741	_fireMouseEvent: function (e) {
3742
3743		this.fire(e.type, {
3744			originalEvent: e,
3745			latlng: this._latlng
3746		});
3747
3748		// TODO proper custom event propagation
3749		// this line will always be called if marker is in a FeatureGroup
3750		if (e.type === 'contextmenu' && this.hasEventListeners(e.type)) {
3751			L.DomEvent.preventDefault(e);
3752		}
3753		if (e.type !== 'mousedown') {
3754			L.DomEvent.stopPropagation(e);
3755		} else {
3756			L.DomEvent.preventDefault(e);
3757		}
3758	},
3759
3760	setOpacity: function (opacity) {
3761		this.options.opacity = opacity;
3762		if (this._map) {
3763			this._updateOpacity();
3764		}
3765
3766		return this;
3767	},
3768
3769	_updateOpacity: function () {
3770		L.DomUtil.setOpacity(this._icon, this.options.opacity);
3771		if (this._shadow) {
3772			L.DomUtil.setOpacity(this._shadow, this.options.opacity);
3773		}
3774	},
3775
3776	_bringToFront: function () {
3777		this._updateZIndex(this.options.riseOffset);
3778	},
3779
3780	_resetZIndex: function () {
3781		this._updateZIndex(0);
3782	}
3783});
3784
3785L.marker = function (latlng, options) {
3786	return new L.Marker(latlng, options);
3787};
3788
3789
3790/*
3791 * L.DivIcon is a lightweight HTML-based icon class (as opposed to the image-based L.Icon)
3792 * to use with L.Marker.
3793 */
3794
3795L.DivIcon = L.Icon.extend({
3796	options: {
3797		iconSize: [12, 12], // also can be set through CSS
3798		/*
3799		iconAnchor: (Point)
3800		popupAnchor: (Point)
3801		html: (String)
3802		bgPos: (Point)
3803		*/
3804		className: 'leaflet-div-icon',
3805		html: false
3806	},
3807
3808	createIcon: function (oldIcon) {
3809		var div = (oldIcon && oldIcon.tagName === 'DIV') ? oldIcon : document.createElement('div'),
3810		    options = this.options;
3811
3812		if (options.html !== false) {
3813			div.innerHTML = options.html;
3814		} else {
3815			div.innerHTML = '';
3816		}
3817
3818		if (options.bgPos) {
3819			div.style.backgroundPosition =
3820			        (-options.bgPos.x) + 'px ' + (-options.bgPos.y) + 'px';
3821		}
3822
3823		this._setIconStyles(div, 'icon');
3824		return div;
3825	},
3826
3827	createShadow: function () {
3828		return null;
3829	}
3830});
3831
3832L.divIcon = function (options) {
3833	return new L.DivIcon(options);
3834};
3835
3836
3837/*
3838 * L.Popup is used for displaying popups on the map.
3839 */
3840
3841L.Map.mergeOptions({
3842	closePopupOnClick: true
3843});
3844
3845L.Popup = L.Class.extend({
3846	includes: L.Mixin.Events,
3847
3848	options: {
3849		minWidth: 50,
3850		maxWidth: 300,
3851		// maxHeight: null,
3852		autoPan: true,
3853		closeButton: true,
3854		offset: [0, 7],
3855		autoPanPadding: [5, 5],
3856		// autoPanPaddingTopLeft: null,
3857		// autoPanPaddingBottomRight: null,
3858		keepInView: false,
3859		className: '',
3860		zoomAnimation: true
3861	},
3862
3863	initialize: function (options, source) {
3864		L.setOptions(this, options);
3865
3866		this._source = source;
3867		this._animated = L.Browser.any3d && this.options.zoomAnimation;
3868		this._isOpen = false;

3869	},
3870
3871	onAdd: function (map) {
3872		this._map = map;
3873
3874		if (!this._container) {
3875			this._initLayout();
3876		}
3877
3878		var animFade = map.options.fadeAnimation;
3879
3880		if (animFade) {
3881			L.DomUtil.setOpacity(this._container, 0);
3882		}
3883		map._panes.popupPane.appendChild(this._container);
3884
3885		map.on(this._getEvents(), this);
3886
3887		this.update();
3888
3889		if (animFade) {
3890			L.DomUtil.setOpacity(this._container, 1);
3891		}
3892
3893		this.fire('open');
3894
3895		map.fire('popupopen', {popup: this});
3896
3897		if (this._source) {
3898			this._source.fire('popupopen', {popup: this});
3899		}
3900	},
3901
3902	addTo: function (map) {
3903		map.addLayer(this);
3904		return this;
3905	},
3906
3907	openOn: function (map) {
3908		map.openPopup(this);
3909		return this;
3910	},
3911
3912	onRemove: function (map) {
3913		map._panes.popupPane.removeChild(this._container);
3914
3915		L.Util.falseFn(this._container.offsetWidth); // force reflow
3916
3917		map.off(this._getEvents(), this);
3918
3919		if (map.options.fadeAnimation) {
3920			L.DomUtil.setOpacity(this._container, 0);
3921		}
3922
3923		this._map = null;
3924
3925		this.fire('close');
3926
3927		map.fire('popupclose', {popup: this});
3928
3929		if (this._source) {
3930			this._source.fire('popupclose', {popup: this});
3931		}
3932	},
3933
3934	getLatLng: function () {
3935		return this._latlng;
3936	},
3937
3938	setLatLng: function (latlng) {
3939		this._latlng = L.latLng(latlng);
3940		if (this._map) {
3941			this._updatePosition();
3942			this._adjustPan();
3943		}
3944		return this;
3945	},
3946
3947	getContent: function () {
3948		return this._content;
3949	},
3950
3951	setContent: function (content) {
3952		this._content = content;
3953		this.update();
3954		return this;
3955	},
3956
3957	update: function () {
3958		if (!this._map) { return; }
3959
3960		this._container.style.visibility = 'hidden';
3961
3962		this._updateContent();
3963		this._updateLayout();
3964		this._updatePosition();
3965
3966		this._container.style.visibility = '';
3967
3968		this._adjustPan();
3969	},
3970
3971	_getEvents: function () {
3972		var events = {
3973			viewreset: this._updatePosition
3974		};
3975
3976		if (this._animated) {
3977			events.zoomanim = this._zoomAnimation;
3978		}
3979		if ('closeOnClick' in this.options ? this.options.closeOnClick : this._map.options.closePopupOnClick) {
3980			events.preclick = this._close;
3981		}
3982		if (this.options.keepInView) {
3983			events.moveend = this._adjustPan;
3984		}
3985
3986		return events;
3987	},
3988
3989	_close: function () {
3990		if (this._map) {
3991			this._map.closePopup(this);
3992		}
3993	},
3994
3995	_initLayout: function () {
3996		var prefix = 'leaflet-popup',
3997			containerClass = prefix + ' ' + this.options.className + ' leaflet-zoom-' +
3998			        (this._animated ? 'animated' : 'hide'),
3999			container = this._container = L.DomUtil.create('div', containerClass),
4000			closeButton;
4001
4002		if (this.options.closeButton) {
4003			closeButton = this._closeButton =
4004			        L.DomUtil.create('a', prefix + '-close-button', container);
4005			closeButton.href = '#close';
4006			closeButton.innerHTML = '×';
4007			L.DomEvent.disableClickPropagation(closeButton);
4008
4009			L.DomEvent.on(closeButton, 'click', this._onCloseButtonClick, this);
4010		}
4011
4012		var wrapper = this._wrapper =
4013		        L.DomUtil.create('div', prefix + '-content-wrapper', container);
4014		L.DomEvent.disableClickPropagation(wrapper);
4015
4016		this._contentNode = L.DomUtil.create('div', prefix + '-content', wrapper);
4017
4018		L.DomEvent.disableScrollPropagation(this._contentNode);
4019		L.DomEvent.on(wrapper, 'contextmenu', L.DomEvent.stopPropagation);
4020
4021		this._tipContainer = L.DomUtil.create('div', prefix + '-tip-container', container);
4022		this._tip = L.DomUtil.create('div', prefix + '-tip', this._tipContainer);
4023	},
4024
4025	_updateContent: function () {
4026		if (!this._content) { return; }
4027
4028		if (typeof this._content === 'string') {
4029			this._contentNode.innerHTML = this._content;
4030		} else {
4031			while (this._contentNode.hasChildNodes()) {
4032				this._contentNode.removeChild(this._contentNode.firstChild);
4033			}
4034			this._contentNode.appendChild(this._content);
4035		}
4036		this.fire('contentupdate');
4037	},
4038
4039	_updateLayout: function () {
4040		var container = this._contentNode,
4041		    style = container.style;
4042
4043		style.width = '';
4044		style.whiteSpace = 'nowrap';
4045
4046		var width = container.offsetWidth;
4047		width = Math.min(width, this.options.maxWidth);
4048		width = Math.max(width, this.options.minWidth);
4049
4050		style.width = (width + 1) + 'px';
4051		style.whiteSpace = '';
4052
4053		style.height = '';
4054
4055		var height = container.offsetHeight,
4056		    maxHeight = this.options.maxHeight,
4057		    scrolledClass = 'leaflet-popup-scrolled';
4058
4059		if (maxHeight && height > maxHeight) {
4060			style.height = maxHeight + 'px';
4061			L.DomUtil.addClass(container, scrolledClass);
4062		} else {
4063			L.DomUtil.removeClass(container, scrolledClass);
4064		}
4065
4066		this._containerWidth = this._container.offsetWidth;
4067	},
4068
4069	_updatePosition: function () {
4070		if (!this._map) { return; }
4071
4072		var pos = this._map.latLngToLayerPoint(this._latlng),
4073		    animated = this._animated,
4074		    offset = L.point(this.options.offset);
4075
4076		if (animated) {
4077			L.DomUtil.setPosition(this._container, pos);
4078		}
4079
4080		this._containerBottom = -offset.y - (animated ? 0 : pos.y);
4081		this._containerLeft = -Math.round(this._containerWidth / 2) + offset.x + (animated ? 0 : pos.x);
4082
4083		// bottom position the popup in case the height of the popup changes (images loading etc)
4084		this._container.style.bottom = this._containerBottom + 'px';
4085		this._container.style.left = this._containerLeft + 'px';
4086	},
4087
4088	_zoomAnimation: function (opt) {
4089		var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center);
4090
4091		L.DomUtil.setPosition(this._container, pos);
4092	},
4093
4094	_adjustPan: function () {
4095		if (!this.options.autoPan) { return; }
4096
4097		var map = this._map,
4098		    containerHeight = this._container.offsetHeight,
4099		    containerWidth = this._containerWidth,
4100
4101		    layerPos = new L.Point(this._containerLeft, -containerHeight - this._containerBottom);
4102
4103		if (this._animated) {
4104			layerPos._add(L.DomUtil.getPosition(this._container));
4105		}
4106
4107		var containerPos = map.layerPointToContainerPoint(layerPos),
4108		    padding = L.point(this.options.autoPanPadding),
4109		    paddingTL = L.point(this.options.autoPanPaddingTopLeft || padding),
4110		    paddingBR = L.point(this.options.autoPanPaddingBottomRight || padding),
4111		    size = map.getSize(),
4112		    dx = 0,
4113		    dy = 0;
4114
4115		if (containerPos.x + containerWidth + paddingBR.x > size.x) { // right
4116			dx = containerPos.x + containerWidth - size.x + paddingBR.x;
4117		}
4118		if (containerPos.x - dx - paddingTL.x < 0) { // left
4119			dx = containerPos.x - paddingTL.x;
4120		}
4121		if (containerPos.y + containerHeight + paddingBR.y > size.y) { // bottom
4122			dy = containerPos.y + containerHeight - size.y + paddingBR.y;
4123		}
4124		if (containerPos.y - dy - paddingTL.y < 0) { // top
4125			dy = containerPos.y - paddingTL.y;
4126		}
4127
4128		if (dx || dy) {
4129			map
4130			    .fire('autopanstart')
4131			    .panBy([dx, dy]);
4132		}
4133	},
4134
4135	_onCloseButtonClick: function (e) {
4136		this._close();
4137		L.DomEvent.stop(e);
4138	}
4139});
4140
4141L.popup = function (options, source) {
4142	return new L.Popup(options, source);
4143};
4144
4145
4146L.Map.include({
4147	openPopup: function (popup, latlng, options) { // (Popup) or (String || HTMLElement, LatLng[, Object])
4148		this.closePopup();
4149
4150		if (!(popup instanceof L.Popup)) {
4151			var content = popup;
4152
4153			popup = new L.Popup(options)
4154			    .setLatLng(latlng)
4155			    .setContent(content);
4156		}
4157		popup._isOpen = true;
4158
4159		this._popup = popup;
4160		return this.addLayer(popup);
4161	},
4162
4163	closePopup: function (popup) {
4164		if (!popup || popup === this._popup) {
4165			popup = this._popup;
4166			this._popup = null;
4167		}
4168		if (popup) {
4169			this.removeLayer(popup);
4170			popup._isOpen = false;

4171		}
4172		return this;
4173	}
4174});
4175
4176
4177/*
4178 * Popup extension to L.Marker, adding popup-related methods.
4179 */
4180
4181L.Marker.include({
4182	openPopup: function () {
4183		if (this._popup && this._map && !this._map.hasLayer(this._popup)) {
4184			this._popup.setLatLng(this._latlng);
4185			this._map.openPopup(this._popup);
4186		}
4187
4188		return this;
4189	},
4190
4191	closePopup: function () {
4192		if (this._popup) {
4193			this._popup._close();
4194		}
4195		return this;
4196	},
4197
4198	togglePopup: function () {
4199		if (this._popup) {
4200			if (this._popup._isOpen) {
4201				this.closePopup();
4202			} else {
4203				this.openPopup();
4204			}
4205		}
4206		return this;
4207	},
4208
4209	bindPopup: function (content, options) {
4210		var anchor = L.point(this.options.icon.options.popupAnchor || [0, 0]);
4211
4212		anchor = anchor.add(L.Popup.prototype.options.offset);
4213
4214		if (options && options.offset) {
4215			anchor = anchor.add(options.offset);
4216		}
4217
4218		options = L.extend({offset: anchor}, options);
4219
4220		if (!this._popupHandlersAdded) {
4221			this
4222			    .on('click', this.togglePopup, this)
4223			    .on('remove', this.closePopup, this)
4224			    .on('move', this._movePopup, this);
4225			this._popupHandlersAdded = true;
4226		}
4227
4228		if (content instanceof L.Popup) {
4229			L.setOptions(content, options);
4230			this._popup = content;
4231		} else {
4232			this._popup = new L.Popup(options, this)
4233				.setContent(content);
4234		}
4235
4236		return this;
4237	},
4238
4239	setPopupContent: function (content) {
4240		if (this._popup) {
4241			this._popup.setContent(content);
4242		}
4243		return this;
4244	},
4245
4246	unbindPopup: function () {
4247		if (this._popup) {
4248			this._popup = null;
4249			this
4250			    .off('click', this.togglePopup, this)
4251			    .off('remove', this.closePopup, this)
4252			    .off('move', this._movePopup, this);
4253			this._popupHandlersAdded = false;
4254		}
4255		return this;
4256	},
4257
4258	getPopup: function () {
4259		return this._popup;
4260	},
4261
4262	_movePopup: function (e) {
4263		this._popup.setLatLng(e.latlng);
4264	}
4265});
4266
4267
4268/*
4269 * L.LayerGroup is a class to combine several layers into one so that
4270 * you can manipulate the group (e.g. add/remove it) as one layer.
4271 */
4272
4273L.LayerGroup = L.Class.extend({
4274	initialize: function (layers) {
4275		this._layers = {};
4276
4277		var i, len;
4278
4279		if (layers) {
4280			for (i = 0, len = layers.length; i < len; i++) {
4281				this.addLayer(layers[i]);
4282			}
4283		}
4284	},
4285
4286	addLayer: function (layer) {
4287		var id = this.getLayerId(layer);
4288
4289		this._layers[id] = layer;
4290
4291		if (this._map) {
4292			this._map.addLayer(layer);
4293		}
4294
4295		return this;
4296	},
4297
4298	removeLayer: function (layer) {
4299		var id = layer in this._layers ? layer : this.getLayerId(layer);
4300
4301		if (this._map && this._layers[id]) {
4302			this._map.removeLayer(this._layers[id]);
4303		}
4304
4305		delete this._layers[id];
4306
4307		return this;
4308	},
4309
4310	hasLayer: function (layer) {
4311		if (!layer) { return false; }
4312
4313		return (layer in this._layers || this.getLayerId(layer) in this._layers);
4314	},
4315
4316	clearLayers: function () {
4317		this.eachLayer(this.removeLayer, this);
4318		return this;
4319	},
4320
4321	invoke: function (methodName) {
4322		var args = Array.prototype.slice.call(arguments, 1),
4323		    i, layer;
4324
4325		for (i in this._layers) {
4326			layer = this._layers[i];
4327
4328			if (layer[methodName]) {
4329				layer[methodName].apply(layer, args);
4330			}
4331		}
4332
4333		return this;
4334	},
4335
4336	onAdd: function (map) {
4337		this._map = map;
4338		this.eachLayer(map.addLayer, map);
4339	},
4340
4341	onRemove: function (map) {
4342		this.eachLayer(map.removeLayer, map);
4343		this._map = null;
4344	},
4345
4346	addTo: function (map) {
4347		map.addLayer(this);
4348		return this;
4349	},
4350
4351	eachLayer: function (method, context) {
4352		for (var i in this._layers) {
4353			method.call(context, this._layers[i]);
4354		}
4355		return this;
4356	},
4357
4358	getLayer: function (id) {
4359		return this._layers[id];
4360	},
4361
4362	getLayers: function () {
4363		var layers = [];
4364
4365		for (var i in this._layers) {
4366			layers.push(this._layers[i]);
4367		}
4368		return layers;
4369	},
4370
4371	setZIndex: function (zIndex) {
4372		return this.invoke('setZIndex', zIndex);
4373	},
4374
4375	getLayerId: function (layer) {
4376		return L.stamp(layer);
4377	}
4378});
4379
4380L.layerGroup = function (layers) {
4381	return new L.LayerGroup(layers);
4382};
4383
4384
4385/*
4386 * L.FeatureGroup extends L.LayerGroup by introducing mouse events and additional methods
4387 * shared between a group of interactive layers (like vectors or markers).
4388 */
4389
4390L.FeatureGroup = L.LayerGroup.extend({
4391	includes: L.Mixin.Events,
4392
4393	statics: {
4394		EVENTS: 'click dblclick mouseover mouseout mousemove contextmenu popupopen popupclose'
4395	},
4396
4397	addLayer: function (layer) {
4398		if (this.hasLayer(layer)) {
4399			return this;
4400		}
4401
4402		if ('on' in layer) {
4403			layer.on(L.FeatureGroup.EVENTS, this._propagateEvent, this);
4404		}
4405
4406		L.LayerGroup.prototype.addLayer.call(this, layer);
4407
4408		if (this._popupContent && layer.bindPopup) {
4409			layer.bindPopup(this._popupContent, this._popupOptions);
4410		}
4411
4412		return this.fire('layeradd', {layer: layer});
4413	},
4414
4415	removeLayer: function (layer) {
4416		if (!this.hasLayer(layer)) {
4417			return this;
4418		}
4419		if (layer in this._layers) {
4420			layer = this._layers[layer];
4421		}
4422
4423		layer.off(L.FeatureGroup.EVENTS, this._propagateEvent, this);
4424
4425		L.LayerGroup.prototype.removeLayer.call(this, layer);
4426
4427		if (this._popupContent) {
4428			this.invoke('unbindPopup');
4429		}
4430
4431		return this.fire('layerremove', {layer: layer});
4432	},
4433
4434	bindPopup: function (content, options) {
4435		this._popupContent = content;
4436		this._popupOptions = options;
4437		return this.invoke('bindPopup', content, options);
4438	},
4439
4440	openPopup: function (latlng) {
4441		// open popup on the first layer
4442		for (var id in this._layers) {
4443			this._layers[id].openPopup(latlng);
4444			break;
4445		}
4446		return this;
4447	},
4448
4449	setStyle: function (style) {
4450		return this.invoke('setStyle', style);
4451	},
4452
4453	bringToFront: function () {
4454		return this.invoke('bringToFront');
4455	},
4456
4457	bringToBack: function () {
4458		return this.invoke('bringToBack');
4459	},
4460
4461	getBounds: function () {
4462		var bounds = new L.LatLngBounds();
4463
4464		this.eachLayer(function (layer) {
4465			bounds.extend(layer instanceof L.Marker ? layer.getLatLng() : layer.getBounds());
4466		});
4467
4468		return bounds;
4469	},
4470
4471	_propagateEvent: function (e) {
4472		e = L.extend({
4473			layer: e.target,
4474			target: this
4475		}, e);
4476		this.fire(e.type, e);
4477	}
4478});
4479
4480L.featureGroup = function (layers) {
4481	return new L.FeatureGroup(layers);
4482};
4483
4484
4485/*
4486 * L.Path is a base class for rendering vector paths on a map. Inherited by Polyline, Circle, etc.
4487 */
4488
4489L.Path = L.Class.extend({
4490	includes: [L.Mixin.Events],
4491
4492	statics: {
4493		// how much to extend the clip area around the map view
4494		// (relative to its size, e.g. 0.5 is half the screen in each direction)
4495		// set it so that SVG element doesn't exceed 1280px (vectors flicker on dragend if it is)
4496		CLIP_PADDING: (function () {
4497			var max = L.Browser.mobile ? 1280 : 2000,
4498			    target = (max / Math.max(window.outerWidth, window.outerHeight) - 1) / 2;
4499			return Math.max(0, Math.min(0.5, target));
4500		})()
4501	},
4502
4503	options: {
4504		stroke: true,
4505		color: '#0033ff',
4506		dashArray: null,
4507		lineCap: null,
4508		lineJoin: null,
4509		weight: 5,
4510		opacity: 0.5,
4511
4512		fill: false,
4513		fillColor: null, //same as color by default
4514		fillOpacity: 0.2,
4515
4516		clickable: true
4517	},
4518
4519	initialize: function (options) {
4520		L.setOptions(this, options);
4521	},
4522
4523	onAdd: function (map) {
4524		this._map = map;
4525
4526		if (!this._container) {
4527			this._initElements();
4528			this._initEvents();
4529		}
4530
4531		this.projectLatlngs();
4532		this._updatePath();
4533
4534		if (this._container) {
4535			this._map._pathRoot.appendChild(this._container);
4536		}
4537
4538		this.fire('add');
4539
4540		map.on({
4541			'viewreset': this.projectLatlngs,
4542			'moveend': this._updatePath
4543		}, this);
4544	},
4545
4546	addTo: function (map) {
4547		map.addLayer(this);
4548		return this;
4549	},
4550
4551	onRemove: function (map) {
4552		map._pathRoot.removeChild(this._container);
4553
4554		// Need to fire remove event before we set _map to null as the event hooks might need the object
4555		this.fire('remove');
4556		this._map = null;
4557
4558		if (L.Browser.vml) {
4559			this._container = null;
4560			this._stroke = null;
4561			this._fill = null;
4562		}
4563
4564		map.off({
4565			'viewreset': this.projectLatlngs,
4566			'moveend': this._updatePath
4567		}, this);
4568	},
4569
4570	projectLatlngs: function () {
4571		// do all projection stuff here
4572	},
4573
4574	setStyle: function (style) {
4575		L.setOptions(this, style);
4576
4577		if (this._container) {
4578			this._updateStyle();
4579		}
4580
4581		return this;
4582	},
4583
4584	redraw: function () {
4585		if (this._map) {
4586			this.projectLatlngs();
4587			this._updatePath();
4588		}
4589		return this;
4590	}
4591});
4592
4593L.Map.include({
4594	_updatePathViewport: function () {
4595		var p = L.Path.CLIP_PADDING,

4596		    size = this.getSize(),
4597		    panePos = L.DomUtil.getPosition(this._mapPane),
4598		    min = panePos.multiplyBy(-1)._subtract(size.multiplyBy(p)._round()),
4599		    max = min.add(size.multiplyBy(1 + p * 2)._round());
4600
4601		this._pathViewport = new L.Bounds(min, max);
4602	}
4603});
4604
4605
4606/*
4607 * Extends L.Path with SVG-specific rendering code.
4608 */
4609
4610L.Path.SVG_NS = 'http://www.w3.org/2000/svg';
4611
4612L.Browser.svg = !!(document.createElementNS && document.createElementNS(L.Path.SVG_NS, 'svg').createSVGRect);
4613
4614L.Path = L.Path.extend({
4615	statics: {
4616		SVG: L.Browser.svg
4617	},
4618
4619	bringToFront: function () {
4620		var root = this._map._pathRoot,
4621		    path = this._container;
4622
4623		if (path && root.lastChild !== path) {
4624			root.appendChild(path);
4625		}
4626		return this;
4627	},
4628
4629	bringToBack: function () {
4630		var root = this._map._pathRoot,
4631		    path = this._container,
4632		    first = root.firstChild;
4633
4634		if (path && first !== path) {
4635			root.insertBefore(path, first);
4636		}
4637		return this;
4638	},
4639
4640	getPathString: function () {
4641		// form path string here
4642	},
4643
4644	_createElement: function (name) {
4645		return document.createElementNS(L.Path.SVG_NS, name);
4646	},
4647
4648	_initElements: function () {
4649		this._map._initPathRoot();
4650		this._initPath();
4651		this._initStyle();
4652	},
4653
4654	_initPath: function () {
4655		this._container = this._createElement('g');
4656
4657		this._path = this._createElement('path');
4658
4659		if (this.options.className) {
4660			L.DomUtil.addClass(this._path, this.options.className);
4661		}
4662
4663		this._container.appendChild(this._path);
4664	},
4665
4666	_initStyle: function () {
4667		if (this.options.stroke) {
4668			this._path.setAttribute('stroke-linejoin', 'round');
4669			this._path.setAttribute('stroke-linecap', 'round');
4670		}
4671		if (this.options.fill) {
4672			this._path.setAttribute('fill-rule', 'evenodd');
4673		}
4674		if (this.options.pointerEvents) {
4675			this._path.setAttribute('pointer-events', this.options.pointerEvents);
4676		}
4677		if (!this.options.clickable && !this.options.pointerEvents) {
4678			this._path.setAttribute('pointer-events', 'none');
4679		}
4680		this._updateStyle();
4681	},
4682
4683	_updateStyle: function () {
4684		if (this.options.stroke) {
4685			this._path.setAttribute('stroke', this.options.color);
4686			this._path.setAttribute('stroke-opacity', this.options.opacity);
4687			this._path.setAttribute('stroke-width', this.options.weight);
4688			if (this.options.dashArray) {
4689				this._path.setAttribute('stroke-dasharray', this.options.dashArray);
4690			} else {
4691				this._path.removeAttribute('stroke-dasharray');
4692			}
4693			if (this.options.lineCap) {
4694				this._path.setAttribute('stroke-linecap', this.options.lineCap);
4695			}
4696			if (this.options.lineJoin) {
4697				this._path.setAttribute('stroke-linejoin', this.options.lineJoin);
4698			}
4699		} else {
4700			this._path.setAttribute('stroke', 'none');
4701		}
4702		if (this.options.fill) {
4703			this._path.setAttribute('fill', this.options.fillColor || this.options.color);
4704			this._path.setAttribute('fill-opacity', this.options.fillOpacity);
4705		} else {
4706			this._path.setAttribute('fill', 'none');
4707		}
4708	},
4709
4710	_updatePath: function () {
4711		var str = this.getPathString();
4712		if (!str) {
4713			// fix webkit empty string parsing bug
4714			str = 'M0 0';
4715		}
4716		this._path.setAttribute('d', str);
4717	},
4718
4719	// TODO remove duplication with L.Map
4720	_initEvents: function () {
4721		if (this.options.clickable) {
4722			if (L.Browser.svg || !L.Browser.vml) {
4723				L.DomUtil.addClass(this._path, 'leaflet-clickable');
4724			}
4725
4726			L.DomEvent.on(this._container, 'click', this._onMouseClick, this);
4727
4728			var events = ['dblclick', 'mousedown', 'mouseover',
4729			              'mouseout', 'mousemove', 'contextmenu'];
4730			for (var i = 0; i < events.length; i++) {
4731				L.DomEvent.on(this._container, events[i], this._fireMouseEvent, this);
4732			}
4733		}
4734	},
4735
4736	_onMouseClick: function (e) {
4737		if (this._map.dragging && this._map.dragging.moved()) { return; }
4738
4739		this._fireMouseEvent(e);
4740	},
4741
4742	_fireMouseEvent: function (e) {
4743		if (!this.hasEventListeners(e.type)) { return; }
4744
4745		var map = this._map,
4746		    containerPoint = map.mouseEventToContainerPoint(e),
4747		    layerPoint = map.containerPointToLayerPoint(containerPoint),
4748		    latlng = map.layerPointToLatLng(layerPoint);
4749
4750		this.fire(e.type, {
4751			latlng: latlng,
4752			layerPoint: layerPoint,
4753			containerPoint: containerPoint,
4754			originalEvent: e
4755		});
4756
4757		if (e.type === 'contextmenu') {
4758			L.DomEvent.preventDefault(e);
4759		}
4760		if (e.type !== 'mousemove') {
4761			L.DomEvent.stopPropagation(e);
4762		}
4763	}
4764});
4765
4766L.Map.include({
4767	_initPathRoot: function () {
4768		if (!this._pathRoot) {
4769			this._pathRoot = L.Path.prototype._createElement('svg');
4770			this._panes.overlayPane.appendChild(this._pathRoot);
4771
4772			if (this.options.zoomAnimation && L.Browser.any3d) {
4773				L.DomUtil.addClass(this._pathRoot, 'leaflet-zoom-animated');
4774
4775				this.on({
4776					'zoomanim': this._animatePathZoom,
4777					'zoomend': this._endPathZoom
4778				});
4779			} else {
4780				L.DomUtil.addClass(this._pathRoot, 'leaflet-zoom-hide');
4781			}
4782
4783			this.on('moveend', this._updateSvgViewport);
4784			this._updateSvgViewport();
4785		}
4786	},
4787
4788	_animatePathZoom: function (e) {
4789		var scale = this.getZoomScale(e.zoom),
4790		    offset = this._getCenterOffset(e.center)._multiplyBy(-scale)._add(this._pathViewport.min);
4791
4792		this._pathRoot.style[L.DomUtil.TRANSFORM] =
4793		        L.DomUtil.getTranslateString(offset) + ' scale(' + scale + ') ';
4794
4795		this._pathZooming = true;
4796	},
4797
4798	_endPathZoom: function () {
4799		this._pathZooming = false;

4800	},
4801
4802	_updateSvgViewport: function () {
4803
4804		if (this._pathZooming) {
4805			// Do not update SVGs while a zoom animation is going on otherwise the animation will break.
4806			// When the zoom animation ends we will be updated again anyway
4807			// This fixes the case where you do a momentum move and zoom while the move is still ongoing.
4808			return;
4809		}
4810
4811		this._updatePathViewport();
4812
4813		var vp = this._pathViewport,
4814		    min = vp.min,
4815		    max = vp.max,
4816		    width = max.x - min.x,
4817		    height = max.y - min.y,
4818		    root = this._pathRoot,
4819		    pane = this._panes.overlayPane;
4820
4821		// Hack to make flicker on drag end on mobile webkit less irritating
4822		if (L.Browser.mobileWebkit) {
4823			pane.removeChild(root);
4824		}
4825
4826		L.DomUtil.setPosition(root, min);
4827		root.setAttribute('width', width);
4828		root.setAttribute('height', height);
4829		root.setAttribute('viewBox', [min.x, min.y, width, height].join(' '));
4830
4831		if (L.Browser.mobileWebkit) {
4832			pane.appendChild(root);
4833		}
4834	}
4835});
4836
4837
4838/*
4839 * Popup extension to L.Path (polylines, polygons, circles), adding popup-related methods.
4840 */
4841
4842L.Path.include({
4843
4844	bindPopup: function (content, options) {
4845
4846		if (content instanceof L.Popup) {
4847			this._popup = content;
4848		} else {
4849			if (!this._popup || options) {
4850				this._popup = new L.Popup(options, this);
4851			}
4852			this._popup.setContent(content);
4853		}
4854
4855		if (!this._popupHandlersAdded) {
4856			this
4857			    .on('click', this._openPopup, this)
4858			    .on('remove', this.closePopup, this);
4859
4860			this._popupHandlersAdded = true;
4861		}
4862
4863		return this;
4864	},
4865
4866	unbindPopup: function () {
4867		if (this._popup) {
4868			this._popup = null;
4869			this
4870			    .off('click', this._openPopup)
4871			    .off('remove', this.closePopup);
4872
4873			this._popupHandlersAdded = false;
4874		}
4875		return this;
4876	},
4877
4878	openPopup: function (latlng) {
4879
4880		if (this._popup) {
4881			// open the popup from one of the path's points if not specified
4882			latlng = latlng || this._latlng ||
4883			         this._latlngs[Math.floor(this._latlngs.length / 2)];
4884
4885			this._openPopup({latlng: latlng});
4886		}
4887
4888		return this;
4889	},
4890
4891	closePopup: function () {
4892		if (this._popup) {
4893			this._popup._close();
4894		}
4895		return this;
4896	},
4897
4898	_openPopup: function (e) {
4899		this._popup.setLatLng(e.latlng);
4900		this._map.openPopup(this._popup);
4901	}
4902});
4903
4904
4905/*
4906 * Vector rendering for IE6-8 through VML.
4907 * Thanks to Dmitry Baranovsky and his Raphael library for inspiration!
4908 */
4909
4910L.Browser.vml = !L.Browser.svg && (function () {
4911	try {
4912		var div = document.createElement('div');
4913		div.innerHTML = '<v:shape adj="1"/>';
4914
4915		var shape = div.firstChild;
4916		shape.style.behavior = 'url(#default#VML)';
4917
4918		return shape && (typeof shape.adj === 'object');
4919
4920	} catch (e) {
4921		return false;
4922	}
4923}());
4924
4925L.Path = L.Browser.svg || !L.Browser.vml ? L.Path : L.Path.extend({
4926	statics: {
4927		VML: true,
4928		CLIP_PADDING: 0.02
4929	},
4930
4931	_createElement: (function () {
4932		try {
4933			document.namespaces.add('lvml', 'urn:schemas-microsoft-com:vml');
4934			return function (name) {
4935				return document.createElement('<lvml:' + name + ' class="lvml">');
4936			};
4937		} catch (e) {
4938			return function (name) {
4939				return document.createElement(
4940				        '<' + name + ' xmlns="urn:schemas-microsoft.com:vml" class="lvml">');
4941			};
4942		}
4943	}()),
4944
4945	_initPath: function () {
4946		var container = this._container = this._createElement('shape');
4947
4948		L.DomUtil.addClass(container, 'leaflet-vml-shape' +
4949			(this.options.className ? ' ' + this.options.className : ''));
4950
4951		if (this.options.clickable) {
4952			L.DomUtil.addClass(container, 'leaflet-clickable');
4953		}
4954
4955		container.coordsize = '1 1';
4956
4957		this._path = this._createElement('path');
4958		container.appendChild(this._path);
4959
4960		this._map._pathRoot.appendChild(container);
4961	},
4962
4963	_initStyle: function () {
4964		this._updateStyle();
4965	},
4966
4967	_updateStyle: function () {
4968		var stroke = this._stroke,
4969		    fill = this._fill,
4970		    options = this.options,
4971		    container = this._container;
4972
4973		container.stroked = options.stroke;
4974		container.filled = options.fill;
4975
4976		if (options.stroke) {
4977			if (!stroke) {
4978				stroke = this._stroke = this._createElement('stroke');
4979				stroke.endcap = 'round';
4980				container.appendChild(stroke);
4981			}
4982			stroke.weight = options.weight + 'px';
4983			stroke.color = options.color;
4984			stroke.opacity = options.opacity;
4985
4986			if (options.dashArray) {
4987				stroke.dashStyle = L.Util.isArray(options.dashArray) ?
4988				    options.dashArray.join(' ') :
4989				    options.dashArray.replace(/( *, *)/g, ' ');
4990			} else {
4991				stroke.dashStyle = '';
4992			}
4993			if (options.lineCap) {
4994				stroke.endcap = options.lineCap.replace('butt', 'flat');
4995			}
4996			if (options.lineJoin) {
4997				stroke.joinstyle = options.lineJoin;
4998			}
4999
5000		} else if (stroke) {
5001			container.removeChild(stroke);
5002			this._stroke = null;
5003		}
5004
5005		if (options.fill) {
5006			if (!fill) {
5007				fill = this._fill = this._createElement('fill');
5008				container.appendChild(fill);
5009			}
5010			fill.color = options.fillColor || options.color;
5011			fill.opacity = options.fillOpacity;
5012
5013		} else if (fill) {
5014			container.removeChild(fill);
5015			this._fill = null;
5016		}
5017	},
5018
5019	_updatePath: function () {
5020		var style = this._container.style;
5021
5022		style.display = 'none';
5023		this._path.v = this.getPathString() + ' '; // the space fixes IE empty path string bug
5024		style.display = '';
5025	}
5026});
5027
5028L.Map.include(L.Browser.svg || !L.Browser.vml ? {} : {
5029	_initPathRoot: function () {
5030		if (this._pathRoot) { return; }
5031
5032		var root = this._pathRoot = document.createElement('div');
5033		root.className = 'leaflet-vml-container';
5034		this._panes.overlayPane.appendChild(root);
5035
5036		this.on('moveend', this._updatePathViewport);
5037		this._updatePathViewport();
5038	}
5039});
5040
5041
5042/*
5043 * Vector rendering for all browsers that support canvas.
5044 */
5045
5046L.Browser.canvas = (function () {
5047	return !!document.createElement('canvas').getContext;
5048}());
5049
5050L.Path = (L.Path.SVG && !window.L_PREFER_CANVAS) || !L.Browser.canvas ? L.Path : L.Path.extend({
5051	statics: {
5052		//CLIP_PADDING: 0.02, // not sure if there's a need to set it to a small value
5053		CANVAS: true,
5054		SVG: false
5055	},
5056
5057	redraw: function () {
5058		if (this._map) {
5059			this.projectLatlngs();
5060			this._requestUpdate();
5061		}
5062		return this;
5063	},
5064
5065	setStyle: function (style) {
5066		L.setOptions(this, style);
5067
5068		if (this._map) {
5069			this._updateStyle();
5070			this._requestUpdate();
5071		}
5072		return this;
5073	},
5074
5075	onRemove: function (map) {
5076		map
5077		    .off('viewreset', this.projectLatlngs, this)
5078		    .off('moveend', this._updatePath, this);
5079
5080		if (this.options.clickable) {
5081			this._map.off('click', this._onClick, this);
5082			this._map.off('mousemove', this._onMouseMove, this);
5083		}
5084
5085		this._requestUpdate();
5086		
5087		this.fire('remove');
5088		this._map = null;
5089	},
5090
5091	_requestUpdate: function () {
5092		if (this._map && !L.Path._updateRequest) {

5093			L.Path._updateRequest = L.Util.requestAnimFrame(this._fireMapMoveEnd, this._map);
5094		}
5095	},
5096
5097	_fireMapMoveEnd: function () {
5098		L.Path._updateRequest = null;
5099		this.fire('moveend');
5100	},
5101
5102	_initElements: function () {
5103		this._map._initPathRoot();
5104		this._ctx = this._map._canvasCtx;
5105	},
5106
5107	_updateStyle: function () {
5108		var options = this.options;
5109
5110		if (options.stroke) {
5111			this._ctx.lineWidth = options.weight;
5112			this._ctx.strokeStyle = options.color;
5113		}
5114		if (options.fill) {
5115			this._ctx.fillStyle = options.fillColor || options.color;
5116		}
5117	},
5118
5119	_drawPath: function () {
5120		var i, j, len, len2, point, drawMethod;
5121
5122		this._ctx.beginPath();
5123
5124		for (i = 0, len = this._parts.length; i < len; i++) {
5125			for (j = 0, len2 = this._parts[i].length; j < len2; j++) {
5126				point = this._parts[i][j];
5127				drawMethod = (j === 0 ? 'move' : 'line') + 'To';
5128
5129				this._ctx[drawMethod](point.x, point.y);
5130			}
5131			// TODO refactor ugly hack
5132			if (this instanceof L.Polygon) {
5133				this._ctx.closePath();
5134			}
5135		}
5136	},
5137
5138	_checkIfEmpty: function () {
5139		return !this._parts.length;
5140	},
5141
5142	_updatePath: function () {
5143		if (this._checkIfEmpty()) { return; }
5144
5145		var ctx = this._ctx,
5146		    options = this.options;
5147
5148		this._drawPath();
5149		ctx.save();
5150		this._updateStyle();
5151
5152		if (options.fill) {
5153			ctx.globalAlpha = options.fillOpacity;
5154			ctx.fill();
5155		}
5156
5157		if (options.stroke) {
5158			ctx.globalAlpha = options.opacity;
5159			ctx.stroke();
5160		}
5161
5162		ctx.restore();
5163
5164		// TODO optimization: 1 fill/stroke for all features with equal style instead of 1 for each feature
5165	},
5166
5167	_initEvents: function () {
5168		if (this.options.clickable) {
5169			// TODO dblclick
5170			this._map.on('mousemove', this._onMouseMove, this);
5171			this._map.on('click', this._onClick, this);
5172		}
5173	},
5174
5175	_onClick: function (e) {
5176		if (this._containsPoint(e.layerPoint)) {
5177			this.fire('click', e);
5178		}
5179	},
5180
5181	_onMouseMove: function (e) {
5182		if (!this._map || this._map._animatingZoom) { return; }
5183
5184		// TODO don't do on each move
5185		if (this._containsPoint(e.layerPoint)) {
5186			this._ctx.canvas.style.cursor = 'pointer';
5187			this._mouseInside = true;
5188			this.fire('mouseover', e);
5189
5190		} else if (this._mouseInside) {
5191			this._ctx.canvas.style.cursor = '';
5192			this._mouseInside = false;

5193			this.fire('mouseout', e);
5194		}
5195	}
5196});
5197
5198L.Map.include((L.Path.SVG && !window.L_PREFER_CANVAS) || !L.Browser.canvas ? {} : {
5199	_initPathRoot: function () {
5200		var root = this._pathRoot,
5201		    ctx;
5202
5203		if (!root) {
5204			root = this._pathRoot = document.createElement('canvas');
5205			root.style.position = 'absolute';
5206			ctx = this._canvasCtx = root.getContext('2d');
5207
5208			ctx.lineCap = 'round';
5209			ctx.lineJoin = 'round';
5210
5211			this._panes.overlayPane.appendChild(root);
5212
5213			if (this.options.zoomAnimation) {
5214				this._pathRoot.className = 'leaflet-zoom-animated';
5215				this.on('zoomanim', this._animatePathZoom);
5216				this.on('zoomend', this._endPathZoom);
5217			}
5218			this.on('moveend', this._updateCanvasViewport);
5219			this._updateCanvasViewport();
5220		}
5221	},
5222
5223	_updateCanvasViewport: function () {
5224		// don't redraw while zooming. See _updateSvgViewport for more details
5225		if (this._pathZooming) { return; }
5226		this._updatePathViewport();
5227
5228		var vp = this._pathViewport,
5229		    min = vp.min,
5230		    size = vp.max.subtract(min),
5231		    root = this._pathRoot;
5232
5233		//TODO check if this works properly on mobile webkit
5234		L.DomUtil.setPosition(root, min);
5235		root.width = size.x;
5236		root.height = size.y;
5237		root.getContext('2d').translate(-min.x, -min.y);
5238	}
5239});
5240
5241
5242/*
5243 * L.LineUtil contains different utility functions for line segments
5244 * and polylines (clipping, simplification, distances, etc.)
5245 */
5246
5247/*jshint bitwise:false */ // allow bitwise operations for this file
5248
5249L.LineUtil = {
5250
5251	// Simplify polyline with vertex reduction and Douglas-Peucker simplification.
5252	// Improves rendering performance dramatically by lessening the number of points to draw.
5253
5254	simplify: function (/*Point[]*/ points, /*Number*/ tolerance) {
5255		if (!tolerance || !points.length) {
5256			return points.slice();
5257		}
5258
5259		var sqTolerance = tolerance * tolerance;
5260
5261		// stage 1: vertex reduction
5262		points = this._reducePoints(points, sqTolerance);
5263
5264		// stage 2: Douglas-Peucker simplification
5265		points = this._simplifyDP(points, sqTolerance);
5266
5267		return points;
5268	},
5269
5270	// distance from a point to a segment between two points
5271	pointToSegmentDistance:  function (/*Point*/ p, /*Point*/ p1, /*Point*/ p2) {
5272		return Math.sqrt(this._sqClosestPointOnSegment(p, p1, p2, true));
5273	},
5274
5275	closestPointOnSegment: function (/*Point*/ p, /*Point*/ p1, /*Point*/ p2) {
5276		return this._sqClosestPointOnSegment(p, p1, p2);
5277	},
5278
5279	// Douglas-Peucker simplification, see http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm
5280	_simplifyDP: function (points, sqTolerance) {
5281
5282		var len = points.length,
5283		    ArrayConstructor = typeof Uint8Array !== undefined + '' ? Uint8Array : Array,
5284		    markers = new ArrayConstructor(len);
5285
5286		markers[0] = markers[len - 1] = 1;
5287
5288		this._simplifyDPStep(points, markers, sqTolerance, 0, len - 1);
5289
5290		var i,
5291		    newPoints = [];
5292
5293		for (i = 0; i < len; i++) {
5294			if (markers[i]) {
5295				newPoints.push(points[i]);
5296			}
5297		}
5298
5299		return newPoints;
5300	},
5301
5302	_simplifyDPStep: function (points, markers, sqTolerance, first, last) {
5303
5304		var maxSqDist = 0,
5305		    index, i, sqDist;
5306
5307		for (i = first + 1; i <= last - 1; i++) {
5308			sqDist = this._sqClosestPointOnSegment(points[i], points[first], points[last], true);
5309
5310			if (sqDist > maxSqDist) {
5311				index = i;
5312				maxSqDist = sqDist;
5313			}
5314		}
5315
5316		if (maxSqDist > sqTolerance) {
5317			markers[index] = 1;
5318
5319			this._simplifyDPStep(points, markers, sqTolerance, first, index);
5320			this._simplifyDPStep(points, markers, sqTolerance, index, last);
5321		}
5322	},
5323
5324	// reduce points that are too close to each other to a single point
5325	_reducePoints: function (points, sqTolerance) {
5326		var reducedPoints = [points[0]];
5327
5328		for (var i = 1, prev = 0, len = points.length; i < len; i++) {
5329			if (this._sqDist(points[i], points[prev]) > sqTolerance) {
5330				reducedPoints.push(points[i]);
5331				prev = i;
5332			}
5333		}
5334		if (prev < len - 1) {
5335			reducedPoints.push(points[len - 1]);
5336		}
5337		return reducedPoints;
5338	},
5339
5340	// Cohen-Sutherland line clipping algorithm.
5341	// Used to avoid rendering parts of a polyline that are not currently visible.
5342
5343	clipSegment: function (a, b, bounds, useLastCode) {
5344		var codeA = useLastCode ? this._lastCode : this._getBitCode(a, bounds),
5345		    codeB = this._getBitCode(b, bounds),
5346
5347		    codeOut, p, newCode;
5348
5349		// save 2nd code to avoid calculating it on the next segment
5350		this._lastCode = codeB;
5351
5352		while (true) {
5353			// if a,b is inside the clip window (trivial accept)
5354			if (!(codeA | codeB)) {
5355				return [a, b];
5356			// if a,b is outside the clip window (trivial reject)
5357			} else if (codeA & codeB) {
5358				return false;

5359			// other cases
5360			} else {
5361				codeOut = codeA || codeB;
5362				p = this._getEdgeIntersection(a, b, codeOut, bounds);
5363				newCode = this._getBitCode(p, bounds);
5364
5365				if (codeOut === codeA) {
5366					a = p;
5367					codeA = newCode;
5368				} else {
5369					b = p;
5370					codeB = newCode;
5371				}
5372			}
5373		}
5374	},
5375
5376	_getEdgeIntersection: function (a, b, code, bounds) {
5377		var dx = b.x - a.x,
5378		    dy = b.y - a.y,
5379		    min = bounds.min,
5380		    max = bounds.max;
5381
5382		if (code & 8) { // top
5383			return new L.Point(a.x + dx * (max.y - a.y) / dy, max.y);
5384		} else if (code & 4) { // bottom
5385			return new L.Point(a.x + dx * (min.y - a.y) / dy, min.y);
5386		} else if (code & 2) { // right
5387			return new L.Point(max.x, a.y + dy * (max.x - a.x) / dx);
5388		} else if (code & 1) { // left
5389			return new L.Point(min.x, a.y + dy * (min.x - a.x) / dx);
5390		}
5391	},
5392
5393	_getBitCode: function (/*Point*/ p, bounds) {
5394		var code = 0;
5395
5396		if (p.x < bounds.min.x) { // left
5397			code |= 1;
5398		} else if (p.x > bounds.max.x) { // right
5399			code |= 2;
5400		}
5401		if (p.y < bounds.min.y) { // bottom
5402			code |= 4;
5403		} else if (p.y > bounds.max.y) { // top
5404			code |= 8;
5405		}
5406
5407		return code;
5408	},
5409
5410	// square distance (to avoid unnecessary Math.sqrt calls)
5411	_sqDist: function (p1, p2) {
5412		var dx = p2.x - p1.x,
5413		    dy = p2.y - p1.y;
5414		return dx * dx + dy * dy;
5415	},
5416
5417	// return closest point on segment or distance to that point
5418	_sqClosestPointOnSegment: function (p, p1, p2, sqDist) {
5419		var x = p1.x,
5420		    y = p1.y,
5421		    dx = p2.x - x,
5422		    dy = p2.y - y,
5423		    dot = dx * dx + dy * dy,
5424		    t;
5425
5426		if (dot > 0) {
5427			t = ((p.x - x) * dx + (p.y - y) * dy) / dot;
5428
5429			if (t > 1) {
5430				x = p2.x;
5431				y = p2.y;
5432			} else if (t > 0) {
5433				x += dx * t;
5434				y += dy * t;
5435			}
5436		}
5437
5438		dx = p.x - x;
5439		dy = p.y - y;
5440
5441		return sqDist ? dx * dx + dy * dy : new L.Point(x, y);
5442	}
5443};
5444
5445
5446/*
5447 * L.Polyline is used to display polylines on a map.
5448 */
5449
5450L.Polyline = L.Path.extend({
5451	initialize: function (latlngs, options) {
5452		L.Path.prototype.initialize.call(this, options);
5453
5454		this._latlngs = this._convertLatLngs(latlngs);
5455	},
5456
5457	options: {
5458		// how much to simplify the polyline on each zoom level
5459		// more = better performance and smoother look, less = more accurate
5460		smoothFactor: 1.0,
5461		noClip: false
5462	},
5463
5464	projectLatlngs: function () {
5465		this._originalPoints = [];
5466
5467		for (var i = 0, len = this._latlngs.length; i < len; i++) {
5468			this._originalPoints[i] = this._map.latLngToLayerPoint(this._latlngs[i]);
5469		}
5470	},
5471
5472	getPathString: function () {
5473		for (var i = 0, len = this._parts.length, str = ''; i < len; i++) {
5474			str += this._getPathPartStr(this._parts[i]);
5475		}
5476		return str;
5477	},
5478
5479	getLatLngs: function () {
5480		return this._latlngs;
5481	},
5482
5483	setLatLngs: function (latlngs) {
5484		this._latlngs = this._convertLatLngs(latlngs);
5485		return this.redraw();
5486	},
5487
5488	addLatLng: function (latlng) {
5489		this._latlngs.push(L.latLng(latlng));
5490		return this.redraw();
5491	},
5492
5493	spliceLatLngs: function () { // (Number index, Number howMany)
5494		var removed = [].splice.apply(this._latlngs, arguments);
5495		this._convertLatLngs(this._latlngs, true);
5496		this.redraw();
5497		return removed;
5498	},
5499
5500	closestLayerPoint: function (p) {
5501		var minDistance = Infinity, parts = this._parts, p1, p2, minPoint = null;
5502
5503		for (var j = 0, jLen = parts.length; j < jLen; j++) {
5504			var points = parts[j];
5505			for (var i = 1, len = points.length; i < len; i++) {
5506				p1 = points[i - 1];
5507				p2 = points[i];
5508				var sqDist = L.LineUtil._sqClosestPointOnSegment(p, p1, p2, true);
5509				if (sqDist < minDistance) {
5510					minDistance = sqDist;
5511					minPoint = L.LineUtil._sqClosestPointOnSegment(p, p1, p2);
5512				}
5513			}
5514		}
5515		if (minPoint) {
5516			minPoint.distance = Math.sqrt(minDistance);
5517		}
5518		return minPoint;
5519	},
5520
5521	getBounds: function () {
5522		return new L.LatLngBounds(this.getLatLngs());
5523	},
5524
5525	_convertLatLngs: function (latlngs, overwrite) {
5526		var i, len, target = overwrite ? latlngs : [];
5527
5528		for (i = 0, len = latlngs.length; i < len; i++) {
5529			if (L.Util.isArray(latlngs[i]) && typeof latlngs[i][0] !== 'number') {
5530				return;
5531			}
5532			target[i] = L.latLng(latlngs[i]);
5533		}
5534		return target;
5535	},
5536
5537	_initEvents: function () {
5538		L.Path.prototype._initEvents.call(this);
5539	},
5540
5541	_getPathPartStr: function (points) {
5542		var round = L.Path.VML;
5543
5544		for (var j = 0, len2 = points.length, str = '', p; j < len2; j++) {
5545			p = points[j];
5546			if (round) {
5547				p._round();
5548			}
5549			str += (j ? 'L' : 'M') + p.x + ' ' + p.y;
5550		}
5551		return str;
5552	},
5553
5554	_clipPoints: function () {
5555		var points = this._originalPoints,
5556		    len = points.length,
5557		    i, k, segment;
5558
5559		if (this.options.noClip) {
5560			this._parts = [points];
5561			return;
5562		}
5563
5564		this._parts = [];
5565
5566		var parts = this._parts,
5567		    vp = this._map._pathViewport,
5568		    lu = L.LineUtil;
5569
5570		for (i = 0, k = 0; i < len - 1; i++) {
5571			segment = lu.clipSegment(points[i], points[i + 1], vp, i);
5572			if (!segment) {
5573				continue;
5574			}
5575
5576			parts[k] = parts[k] || [];
5577			parts[k].push(segment[0]);
5578
5579			// if segment goes out of screen, or it's the last one, it's the end of the line part
5580			if ((segment[1] !== points[i + 1]) || (i === len - 2)) {
5581				parts[k].push(segment[1]);
5582				k++;
5583			}
5584		}
5585	},
5586
5587	// simplify each clipped part of the polyline
5588	_simplifyPoints: function () {
5589		var parts = this._parts,
5590		    lu = L.LineUtil;
5591
5592		for (var i = 0, len = parts.length; i < len; i++) {
5593			parts[i] = lu.simplify(parts[i], this.options.smoothFactor);
5594		}
5595	},
5596
5597	_updatePath: function () {
5598		if (!this._map) { return; }
5599
5600		this._clipPoints();
5601		this._simplifyPoints();
5602
5603		L.Path.prototype._updatePath.call(this);
5604	}
5605});
5606
5607L.polyline = function (latlngs, options) {
5608	return new L.Polyline(latlngs, options);
5609};
5610
5611
5612/*
5613 * L.PolyUtil contains utility functions for polygons (clipping, etc.).
5614 */
5615
5616/*jshint bitwise:false */ // allow bitwise operations here
5617
5618L.PolyUtil = {};
5619
5620/*
5621 * Sutherland-Hodgeman polygon clipping algorithm.
5622 * Used to avoid rendering parts of a polygon that are not currently visible.
5623 */
5624L.PolyUtil.clipPolygon = function (points, bounds) {
5625	var clippedPoints,
5626	    edges = [1, 4, 2, 8],
5627	    i, j, k,
5628	    a, b,
5629	    len, edge, p,
5630	    lu = L.LineUtil;
5631
5632	for (i = 0, len = points.length; i < len; i++) {
5633		points[i]._code = lu._getBitCode(points[i], bounds);
5634	}
5635
5636	// for each edge (left, bottom, right, top)
5637	for (k = 0; k < 4; k++) {
5638		edge = edges[k];
5639		clippedPoints = [];
5640
5641		for (i = 0, len = points.length, j = len - 1; i < len; j = i++) {
5642			a = points[i];
5643			b = points[j];
5644
5645			// if a is inside the clip window
5646			if (!(a._code & edge)) {
5647				// if b is outside the clip window (a->b goes out of screen)
5648				if (b._code & edge) {
5649					p = lu._getEdgeIntersection(b, a, edge, bounds);
5650					p._code = lu._getBitCode(p, bounds);
5651					clippedPoints.push(p);
5652				}
5653				clippedPoints.push(a);
5654
5655			// else if b is inside the clip window (a->b enters the screen)
5656			} else if (!(b._code & edge)) {
5657				p = lu._getEdgeIntersection(b, a, edge, bounds);
5658				p._code = lu._getBitCode(p, bounds);
5659				clippedPoints.push(p);
5660			}
5661		}
5662		points = clippedPoints;
5663	}
5664
5665	return points;
5666};
5667
5668
5669/*
5670 * L.Polygon is used to display polygons on a map.
5671 */
5672
5673L.Polygon = L.Polyline.extend({
5674	options: {
5675		fill: true
5676	},
5677
5678	initialize: function (latlngs, options) {
5679		L.Polyline.prototype.initialize.call(this, latlngs, options);
5680		this._initWithHoles(latlngs);
5681	},
5682
5683	_initWithHoles: function (latlngs) {
5684		var i, len, hole;
5685		if (latlngs && L.Util.isArray(latlngs[0]) && (typeof latlngs[0][0] !== 'number')) {
5686			this._latlngs = this._convertLatLngs(latlngs[0]);
5687			this._holes = latlngs.slice(1);
5688
5689			for (i = 0, len = this._holes.length; i < len; i++) {
5690				hole = this._holes[i] = this._convertLatLngs(this._holes[i]);
5691				if (hole[0].equals(hole[hole.length - 1])) {
5692					hole.pop();
5693				}
5694			}
5695		}
5696
5697		// filter out last point if its equal to the first one
5698		latlngs = this._latlngs;
5699
5700		if (latlngs.length >= 2 && latlngs[0].equals(latlngs[latlngs.length - 1])) {
5701			latlngs.pop();
5702		}
5703	},
5704
5705	projectLatlngs: function () {
5706		L.Polyline.prototype.projectLatlngs.call(this);
5707
5708		// project polygon holes points
5709		// TODO move this logic to Polyline to get rid of duplication
5710		this._holePoints = [];
5711
5712		if (!this._holes) { return; }
5713
5714		var i, j, len, len2;
5715
5716		for (i = 0, len = this._holes.length; i < len; i++) {
5717			this._holePoints[i] = [];
5718
5719			for (j = 0, len2 = this._holes[i].length; j < len2; j++) {
5720				this._holePoints[i][j] = this._map.latLngToLayerPoint(this._holes[i][j]);
5721			}
5722		}
5723	},
5724
5725	setLatLngs: function (latlngs) {
5726		if (latlngs && L.Util.isArray(latlngs[0]) && (typeof latlngs[0][0] !== 'number')) {
5727			this._initWithHoles(latlngs);
5728			return this.redraw();
5729		} else {
5730			return L.Polyline.prototype.setLatLngs.call(this, latlngs);
5731		}
5732	},
5733
5734	_clipPoints: function () {
5735		var points = this._originalPoints,
5736		    newParts = [];
5737
5738		this._parts = [points].concat(this._holePoints);
5739
5740		if (this.options.noClip) { return; }
5741
5742		for (var i = 0, len = this._parts.length; i < len; i++) {
5743			var clipped = L.PolyUtil.clipPolygon(this._parts[i], this._map._pathViewport);
5744			if (clipped.length) {
5745				newParts.push(clipped);
5746			}
5747		}
5748
5749		this._parts = newParts;
5750	},
5751
5752	_getPathPartStr: function (points) {
5753		var str = L.Polyline.prototype._getPathPartStr.call(this, points);
5754		return str + (L.Browser.svg ? 'z' : 'x');
5755	}
5756});
5757
5758L.polygon = function (latlngs, options) {
5759	return new L.Polygon(latlngs, options);
5760};
5761
5762
5763/*
5764 * Contains L.MultiPolyline and L.MultiPolygon layers.
5765 */
5766
5767(function () {
5768	function createMulti(Klass) {
5769
5770		return L.FeatureGroup.extend({
5771
5772			initialize: function (latlngs, options) {
5773				this._layers = {};
5774				this._options = options;
5775				this.setLatLngs(latlngs);
5776			},
5777
5778			setLatLngs: function (latlngs) {
5779				var i = 0,
5780				    len = latlngs.length;
5781
5782				this.eachLayer(function (layer) {
5783					if (i < len) {
5784						layer.setLatLngs(latlngs[i++]);
5785					} else {
5786						this.removeLayer(layer);
5787					}
5788				}, this);
5789
5790				while (i < len) {
5791					this.addLayer(new Klass(latlngs[i++], this._options));
5792				}
5793
5794				return this;
5795			},
5796
5797			getLatLngs: function () {
5798				var latlngs = [];
5799
5800				this.eachLayer(function (layer) {
5801					latlngs.push(layer.getLatLngs());
5802				});
5803
5804				return latlngs;
5805			}
5806		});
5807	}
5808
5809	L.MultiPolyline = createMulti(L.Polyline);
5810	L.MultiPolygon = createMulti(L.Polygon);
5811
5812	L.multiPolyline = function (latlngs, options) {
5813		return new L.MultiPolyline(latlngs, options);
5814	};
5815
5816	L.multiPolygon = function (latlngs, options) {
5817		return new L.MultiPolygon(latlngs, options);
5818	};
5819}());
5820
5821
5822/*
5823 * L.Rectangle extends Polygon and creates a rectangle when passed a 

5823LatLngBounds object.
5824 */
5825
5826L.Rectangle = L.Polygon.extend({
5827	initialize: function (latLngBounds, options) {
5828		L.Polygon.prototype.initialize.call(this, this._boundsToLatLngs(latLngBounds), options);
5829	},
5830
5831	setBounds: function (latLngBounds) {
5832		this.setLatLngs(this._boundsToLatLngs(latLngBounds));
5833	},
5834
5835	_boundsToLatLngs: function (latLngBounds) {
5836		latLngBounds = L.latLngBounds(latLngBounds);
5837		return [
5838			latLngBounds.getSouthWest(),
5839			latLngBounds.getNorthWest(),
5840			latLngBounds.getNorthEast(),
5841			latLngBounds.getSouthEast()
5842		];
5843	}
5844});
5845
5846L.rectangle = function (latLngBounds, options) {
5847	return new L.Rectangle(latLngBounds, options);
5848};
5849
5850
5851/*
5852 * L.Circle is a circle overlay (with a certain radius in meters).
5853 */
5854
5855L.Circle = L.Path.extend({
5856	initialize: function (latlng, radius, options) {
5857		L.Path.prototype.initialize.call(this, options);
5858
5859		this._latlng = L.latLng(latlng);
5860		this._mRadius = radius;
5861	},
5862
5863	options: {
5864		fill: true
5865	},
5866
5867	setLatLng: function (latlng) {
5868		this._latlng = L.latLng(latlng);
5869		return this.redraw();
5870	},
5871
5872	setRadius: function (radius) {
5873		this._mRadius = radius;
5874		return this.redraw();
5875	},
5876
5877	projectLatlngs: function () {
5878		var lngRadius = this._getLngRadius(),
5879		    latlng = this._latlng,
5880		    pointLeft = this._map.latLngToLayerPoint([latlng.lat, latlng.lng - lngRadius]);
5881
5882		this._point = this._map.latLngToLayerPoint(latlng);
5883		this._radius = Math.max(this._point.x - pointLeft.x, 1);
5884	},
5885
5886	getBounds: function () {
5887		var lngRadius = this._getLngRadius(),
5888		    latRadius = (this._mRadius / 40075017) * 360,
5889		    latlng = this._latlng;
5890
5891		return new L.LatLngBounds(
5892		        [latlng.lat - latRadius, latlng.lng - lngRadius],
5893		        [latlng.lat + latRadius, latlng.lng + lngRadius]);
5894	},
5895
5896	getLatLng: function () {
5897		return this._latlng;
5898	},
5899
5900	getPathString: function () {
5901		var p = this._point,
5902		    r = this._radius;
5903
5904		if (this._checkIfEmpty()) {
5905			return '';
5906		}
5907
5908		if (L.Browser.svg) {
5909			return 'M' + p.x + ',' + (p.y - r) +
5910			       'A' + r + ',' + r + ',0,1,1,' +
5911			       (p.x - 0.1) + ',' + (p.y - r) + ' z';
5912		} else {
5913			p._round();
5914			r = Math.round(r);
5915			return 'AL ' + p.x + ',' + p.y + ' ' + r + ',' + r + ' 0,' + (65535 * 360);
5916		}
5917	},
5918
5919	getRadius: function () {
5920		return this._mRadius;
5921	},
5922
5923	// TODO Earth hardcoded, move into projection code!
5924
5925	_getLatRadius: function () {
5926		return (this._mRadius / 40075017) * 360;
5927	},
5928
5929	_getLngRadius: function () {
5930		return this._getLatRadius() / Math.cos(L.LatLng.DEG_TO_RAD * this._latlng.lat);
5931	},
5932
5933	_checkIfEmpty: function () {
5934		if (!this._map) {
5935			return false;
5936		}
5937		var vp = this._map._pathViewport,
5938		    r = this._radius,
5939		    p = this._point;
5940
5941		return p.x - r > vp.max.x || p.y - r > vp.max.y ||
5942		       p.x + r < vp.min.x || p.y + r < vp.min.y;
5943	}
5944});
5945
5946L.circle = function (latlng, radius, options) {
5947	return new L.Circle(latlng, radius, options);
5948};
5949
5950
5951/*
5952 * L.CircleMarker is a circle overlay with a permanent pixel radius.
5953 */
5954
5955L.CircleMarker = L.Circle.extend({
5956	options: {
5957		radius: 10,
5958		weight: 2
5959	},
5960
5961	initialize: function (latlng, options) {
5962		L.Circle.prototype.initialize.call(this, latlng, null, options);
5963		this._radius = this.options.radius;
5964	},
5965
5966	projectLatlngs: function () {
5967		this._point = this._map.latLngToLayerPoint(this._latlng);
5968	},
5969
5970	_updateStyle : function () {
5971		L.Circle.prototype._updateStyle.call(this);
5972		this.setRadius(this.options.radius);
5973	},
5974
5975	setLatLng: function (latlng) {
5976		L.Circle.prototype.setLatLng.call(this, latlng);
5977		if (this._popup && this._popup._isOpen) {
5978			this._popup.setLatLng(latlng);
5979		}
5980		return this;
5981	},
5982
5983	setRadius: function (radius) {
5984		this.options.radius = this._radius = radius;
5985		return this.redraw();
5986	},
5987
5988	getRadius: function () {
5989		return this._radius;
5990	}
5991});
5992
5993L.circleMarker = function (latlng, options) {
5994	return new L.CircleMarker(latlng, options);
5995};
5996
5997
5998/*
5999 * Extends L.Polyline to be able to manually detect clicks on Canvas-rendered polylines.
6000 */
6001
6002L.Polyline.include(!L.Path.CANVAS ? {} : {
6003	_containsPoint: function (p, closed) {
6004		var i, j, k, len, len2, dist, part,
6005		    w = this.options.weight / 2;
6006
6007		if (L.Browser.touch) {
6008			w += 10; // polyline click tolerance on touch devices
6009		}
6010
6011		for (i = 0, len = this._parts.length; i < len; i++) {
6012			part = this._parts[i];
6013			for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {
6014				if (!closed && (j === 0)) {
6015					continue;
6016				}
6017
6018				dist = L.LineUtil.pointToSegmentDistance(p, part[k], part[j]);
6019
6020				if (dist <= w) {
6021					return true;
6022				}
6023			}
6024		}
6025		return false;

6026	}
6027});
6028
6029
6030/*
6031 * Extends L.Polygon to be able to manually detect clicks on Canvas-rendered polygons.
6032 */
6033
6034L.Polygon.include(!L.Path.CANVAS ? {} : {
6035	_containsPoint: function (p) {
6036		var inside = false,
6037		    part, p1, p2,
6038		    i, j, k,
6039		    len, len2;
6040
6041		// TODO optimization: check if within bounds first
6042
6043		if (L.Polyline.prototype._containsPoint.call(this, p, true)) {
6044			// click on polygon border
6045			return true;
6046		}
6047
6048		// ray casting algorithm for detecting if point is in polygon
6049
6050		for (i = 0, len = this._parts.length; i < len; i++) {
6051			part = this._parts[i];
6052
6053			for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {
6054				p1 = part[j];
6055				p2 = part[k];
6056
6057				if (((p1.y > p.y) !== (p2.y > p.y)) &&
6058						(p.x < (p2.x - p1.x) * (p.y - p1.y) / (p2.y - p1.y) + p1.x)) {
6059					inside = !inside;
6060				}
6061			}
6062		}
6063
6064		return inside;
6065	}
6066});
6067
6068
6069/*
6070 * Extends L.Circle with Canvas-specific code.
6071 */
6072
6073L.Circle.include(!L.Path.CANVAS ? {} : {
6074	_drawPath: function () {
6075		var p = this._point;
6076		this._ctx.beginPath();
6077		this._ctx.arc(p.x, p.y, this._radius, 0, Math.PI * 2, false);
6078	},
6079
6080	_containsPoint: function (p) {
6081		var center = this._point,
6082		    w2 = this.options.stroke ? this.options.weight / 2 : 0;
6083
6084		return (p.distanceTo(center) <= this._radius + w2);
6085	}
6086});
6087
6088
6089/*
6090 * CircleMarker canvas specific drawing parts.
6091 */
6092
6093L.CircleMarker.include(!L.Path.CANVAS ? {} : {
6094	_updateStyle: function () {
6095		L.Path.prototype._updateStyle.call(this);
6096	}
6097});
6098
6099
6100/*
6101 * L.GeoJSON turns any GeoJSON data into a Leaflet layer.
6102 */
6103
6104L.GeoJSON = L.FeatureGroup.extend({
6105
6106	initialize: function (geojson, options) {
6107		L.setOptions(this, options);
6108
6109		this._layers = {};
6110
6111		if (geojson) {
6112			this.addData(geojson);
6113		}
6114	},
6115
6116	addData: function (geojson) {
6117		var features = L.Util.isArray(geojson) ? geojson : geojson.features,
6118		    i, len, feature;
6119
6120		if (features) {
6121			for (i = 0, len = features.length; i < len; i++) {
6122				// Only add this if geometry or geometries are set and not null
6123				feature = features[i];
6124				if (feature.geometries || feature.geometry || feature.features || feature.coordinates) {
6125					this.addData(features[i]);
6126				}
6127			}
6128			return this;
6129		}
6130
6131		var options = this.options;
6132
6133		if (options.filter && !options.filter(geojson)) { return; }
6134
6135		var layer = L.GeoJSON.geometryToLayer(geojson, options.pointToLayer, options.coordsToLatLng, options);
6136		layer.feature = L.GeoJSON.asFeature(geojson);
6137
6138		layer.defaultOptions = layer.options;
6139		this.resetStyle(layer);
6140
6141		if (options.onEachFeature) {
6142			options.onEachFeature(geojson, layer);
6143		}
6144
6145		return this.addLayer(layer);
6146	},
6147
6148	resetStyle: function (layer) {
6149		var style = this.options.style;
6150		if (style) {
6151			// reset any custom styles
6152			L.Util.extend(layer.options, layer.defaultOptions);
6153
6154			this._setLayerStyle(layer, style);
6155		}
6156	},
6157
6158	setStyle: function (style) {
6159		this.eachLayer(function (layer) {
6160			this._setLayerStyle(layer, style);
6161		}, this);
6162	},
6163
6164	_setLayerStyle: function (layer, style) {
6165		if (typeof style === 'function') {
6166			style = style(layer.feature);
6167		}
6168		if (layer.setStyle) {
6169			layer.setStyle(style);
6170		}
6171	}
6172});
6173
6174L.extend(L.GeoJSON, {
6175	geometryToLayer: function (geojson, pointToLayer, coordsToLatLng, vectorOptions) {
6176		var geometry = geojson.type === 'Feature' ? geojson.geometry : geojson,
6177		    coords = geometry.coordinates,
6178		    layers = [],
6179		    latlng, latlngs, i, len;
6180
6181		coordsToLatLng = coordsToLatLng || this.coordsToLatLng;
6182
6183		switch (geometry.type) {
6184		case 'Point':
6185			latlng = coordsToLatLng(coords);
6186			return pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng);
6187
6188		case 'MultiPoint':
6189			for (i = 0, len = coords.length; i < len; i++) {
6190				latlng = coordsToLatLng(coords[i]);
6191				layers.push(pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng));
6192			}
6193			return new L.FeatureGroup(layers);
6194
6195		case 'LineString':
6196			latlngs = this.coordsToLatLngs(coords, 0, coordsToLatLng);
6197			return new L.Polyline(latlngs, vectorOptions);
6198
6199		case 'Polygon':
6200			if (coords.length === 2 && !coords[1].length) {
6201				throw new Error('Invalid GeoJSON object.');
6202			}
6203			latlngs = this.coordsToLatLngs(coords, 1, coordsToLatLng);
6204			return new L.Polygon(latlngs, vectorOptions);
6205
6206		case 'MultiLineString':
6207			latlngs = this.coordsToLatLngs(coords, 1, coordsToLatLng);
6208			return new L.MultiPolyline(latlngs, vectorOptions);
6209
6210		case 'MultiPolygon':
6211			latlngs = this.coordsToLatLngs(coords, 2, coordsToLatLng);
6212			return new L.MultiPolygon(latlngs, vectorOptions);
6213
6214		case 'GeometryCollection':
6215			for (i = 0, len = geometry.geometries.length; i < len; i++) {
6216
6217				layers.push(this.geometryToLayer({
6218					geometry: geometry.geometries[i],
6219					type: 'Feature',
6220					properties: geojson.properties
6221				}, pointToLayer, coordsToLatLng, vectorOptions));
6222			}
6223			return new L.FeatureGroup(layers);
6224
6225		default:
6226			throw new Error('Invalid GeoJSON object.');
6227		}
6228	},
6229
6230	coordsToLatLng: function (coords) { // (Array[, Boolean]) -> LatLng
6231		return new L.LatLng(coords[1], coords[0], coords[2]);
6232	},
6233
6234	coordsToLatLngs: function (coords, levelsDeep, coordsToLatLng) { // (Array[, Number, Function]) -> Array
6235		var latlng, i, len,
6236		    latlngs = [];
6237

6238		for (i = 0, len = coords.length; i < len; i++) {
6239			latlng = levelsDeep ?
6240			        this.coordsToLatLngs(coords[i], levelsDeep - 1, coordsToLatLng) :
6241			        (coordsToLatLng || this.coordsToLatLng)(coords[i]);
6242
6243			latlngs.push(latlng);
6244		}
6245
6246		return latlngs;
6247	},
6248
6249	latLngToCoords: function (latlng) {
6250		var coords = [latlng.lng, latlng.lat];
6251
6252		if (latlng.alt !== undefined) {
6253			coords.push(latlng.alt);
6254		}
6255		return coords;
6256	},
6257
6258	latLngsToCoords: function (latLngs) {
6259		var coords = [];
6260
6261		for (var i = 0, len = latLngs.length; i < len; i++) {
6262			coords.push(L.GeoJSON.latLngToCoords(latLngs[i]));
6263		}
6264
6265		return coords;
6266	},
6267
6268	getFeature: function (layer, newGeometry) {
6269		return layer.feature ? L.extend({}, layer.feature, {geometry: newGeometry}) : L.GeoJSON.asFeature(newGeometry);
6270	},
6271
6272	asFeature: function (geoJSON) {
6273		if (geoJSON.type === 'Feature') {
6274			return geoJSON;
6275		}
6276
6277		return {
6278			type: 'Feature',
6279			properties: {},
6280			geometry: geoJSON
6281		};
6282	}
6283});
6284
6285var PointToGeoJSON = {
6286	toGeoJSON: function () {
6287		return L.GeoJSON.getFeature(this, {
6288			type: 'Point',
6289			coordinates: L.GeoJSON.latLngToCoords(this.getLatLng())
6290		});
6291	}
6292};
6293
6294L.Marker.include(PointToGeoJSON);
6295L.Circle.include(PointToGeoJSON);
6296L.CircleMarker.include(PointToGeoJSON);
6297
6298L.Polyline.include({
6299	toGeoJSON: function () {
6300		return L.GeoJSON.getFeature(this, {
6301			type: 'LineString',
6302			coordinates: L.GeoJSON.latLngsToCoords(this.getLatLngs())
6303		});
6304	}
6305});
6306
6307L.Polygon.include({
6308	toGeoJSON: function () {
6309		var coords = [L.GeoJSON.latLngsToCoords(this.getLatLngs())],
6310		    i, len, hole;
6311
6312		coords[0].push(coords[0][0]);
6313
6314		if (this._holes) {
6315			for (i = 0, len = this._holes.length; i < len; i++) {
6316				hole = L.GeoJSON.latLngsToCoords(this._holes[i]);
6317				hole.push(hole[0]);
6318				coords.push(hole);
6319			}
6320		}
6321
6322		return L.GeoJSON.getFeature(this, {
6323			type: 'Polygon',
6324			coordinates: coords
6325		});
6326	}
6327});
6328
6329(function () {
6330	function multiToGeoJSON(type) {
6331		return function () {
6332			var coords = [];
6333
6334			this.eachLayer(function (layer) {
6335				coords.push(layer.toGeoJSON().geometry.coordinates);
6336			});
6337
6338			return L.GeoJSON.getFeature(this, {
6339				type: type,
6340				coordinates: coords
6341			});
6342		};
6343	}
6344
6345	L.MultiPolyline.include({toGeoJSON: multiToGeoJSON('MultiLineString')});
6346	L.MultiPolygon.include({toGeoJSON: multiToGeoJSON('MultiPolygon')});
6347
6348	L.LayerGroup.include({
6349		toGeoJSON: function () {
6350
6351			var geometry = this.feature && this.feature.geometry,
6352				jsons = [],
6353				json;
6354
6355			if (geometry && geometry.type === 'MultiPoint') {
6356				return multiToGeoJSON('MultiPoint').call(this);
6357			}
6358
6359			var isGeometryCollection = geometry && geometry.type === 'GeometryCollection';
6360
6361			this.eachLayer(function (layer) {
6362				if (layer.toGeoJSON) {
6363					json = layer.toGeoJSON();
6364					jsons.push(isGeometryCollection ? json.geometry : L.GeoJSON.asFeature(json));
6365				}
6366			});
6367
6368			if (isGeometryCollection) {
6369				return L.GeoJSON.getFeature(this, {
6370					geometries: jsons,
6371					type: 'GeometryCollection'
6372				});
6373			}
6374
6375			return {
6376				type: 'FeatureCollection',
6377				features: jsons
6378			};
6379		}
6380	});
6381}());
6382
6383L.geoJson = function (geojson, options) {
6384	return new L.GeoJSON(geojson, options);
6385};
6386
6387
6388/*
6389 * L.DomEvent contains functions for working with DOM events.
6390 */
6391
6392L.DomEvent = {
6393	/* inspired by John Resig, Dean Edwards and YUI addEvent implementations */
6394	addListener: function (obj, type, fn, context) { // (HTMLElement, String, Function[, Object])
6395
6396		var id = L.stamp(fn),
6397		    key = '_leaflet_' + type + id,
6398		    handler, originalHandler, newType;
6399
6400		if (obj[key]) { return this; }
6401
6402		handler = function (e) {
6403			return fn.call(context || obj, e || L.DomEvent._getEvent());
6404		};
6405
6406		if (L.Browser.pointer && type.indexOf('touch') === 0) {
6407			return this.addPointerListener(obj, type, handler, id);
6408		}
6409		if (L.Browser.touch && (type === 'dblclick') && this.addDoubleTapListener) {
6410			this.addDoubleTapListener(obj, handler, id);
6411		}
6412
6413		if ('addEventListener' in obj) {
6414
6415			if (type === 'mousewheel') {
6416				obj.addEventListener('DOMMouseScroll', handler, false);
6417				obj.addEventListener(type, handler, false);
6418
6419			} else if ((type === 'mouseenter') || (type === 'mouseleave')) {
6420
6421				originalHandler = handler;

6422				newType = (type === 'mouseenter' ? 'mouseover' : 'mouseout');
6423
6424				handler = function (e) {
6425					if (!L.DomEvent._checkMouse(obj, e)) { return; }
6426					return originalHandler(e);
6427				};
6428
6429				obj.addEventListener(newType, handler, false);
6430
6431			} else if (type === 'click' && L.Browser.android) {
6432				originalHandler = handler;
6433				handler = function (e) {
6434					return L.DomEvent._filterClick(e, originalHandler);
6435				};
6436
6437				obj.addEventListener(type, handler, false);
6438			} else {
6439				obj.addEventListener(type, handler, false);
6440			}
6441
6442		} else if ('attachEvent' in obj) {
6443			obj.attachEvent('on' + type, handler);
6444		}
6445
6446		obj[key] = handler;
6447
6448		return this;
6449	},
6450
6451	removeListener: function (obj, type, fn) {  // (HTMLElement, String, Function)
6452
6453		var id = L.stamp(fn),
6454		    key = '_leaflet_' + type + id,
6455		    handler = obj[key];
6456
6457		if (!handler) { return this; }
6458
6459		if (L.Browser.pointer && type.indexOf('touch') === 0) {
6460			this.removePointerListener(obj, type, id);
6461		} else if (L.Browser.touch && (type === 'dblclick') && this.removeDoubleTapListener) {
6462			this.removeDoubleTapListener(obj, id);
6463
6464		} else if ('removeEventListener' in obj) {
6465
6466			if (type === 'mousewheel') {
6467				obj.removeEventListener('DOMMouseScroll', handler, false);
6468				obj.removeEventListener(type, handler, false);
6469
6470			} else if ((type === 'mouseenter') || (type === 'mouseleave')) {
6471				obj.removeEventListener((type === 'mouseenter' ? 'mouseover' : 'mouseout'), handler, false);
6472			} else {
6473				obj.removeEventListener(type, handler, false);
6474			}
6475		} else if ('detachEvent' in obj) {
6476			obj.detachEvent('on' + type, handler);
6477		}
6478
6479		obj[key] = null;
6480
6481		return this;
6482	},
6483
6484	stopPropagation: function (e) {
6485
6486		if (e.stopPropagation) {
6487			e.stopPropagation();
6488		} else {
6489			e.cancelBubble = true;
6490		}
6491		L.DomEvent._skipped(e);
6492
6493		return this;
6494	},
6495
6496	disableScrollPropagation: function (el) {
6497		var stop = L.DomEvent.stopPropagation;
6498
6499		return L.DomEvent
6500			.on(el, 'mousewheel', stop)
6501			.on(el, 'MozMousePixelScroll', stop);
6502	},
6503
6504	disableClickPropagation: function (el) {
6505		var stop = L.DomEvent.stopPropagation;
6506
6507		for (var i = L.Draggable.START.length - 1; i >= 0; i--) {
6508			L.DomEvent.on(el, L.Draggable.START[i], stop);
6509		}
6510
6511		return L.DomEvent
6512			.on(el, 'click', L.DomEvent._fakeStop)
6513			.on(el, 'dblclick', stop);
6514	},
6515
6516	preventDefault: function (e) {
6517
6518		if (e.preventDefault) {
6519			e.preventDefault();
6520		} else {
6521			e.returnValue = false;
6522		}
6523		return this;
6524	},
6525
6526	stop: function (e) {
6527		return L.DomEvent
6528			.preventDefault(e)
6529			.stopPropagation(e);
6530	},
6531
6532	getMousePosition: function (e, container) {
6533		if (!container) {
6534			return new L.Point(e.clientX, e.clientY);
6535		}
6536
6537		var rect = container.getBoundingClientRect();
6538
6539		return new L.Point(
6540			e.clientX - rect.left - container.clientLeft,
6541			e.clientY - rect.top - container.clientTop);
6542	},
6543
6544	getWheelDelta: function (e) {
6545
6546		var delta = 0;
6547
6548		if (e.wheelDelta) {
6549			delta = e.wheelDelta / 120;
6550		}
6551		if (e.detail) {
6552			delta = -e.detail / 3;
6553		}
6554		return delta;
6555	},
6556
6557	_skipEvents: {},
6558
6559	_fakeStop: function (e) {
6560		// fakes stopPropagation by setting a special event flag, checked/reset with L.DomEvent._skipped(e)
6561		L.DomEvent._skipEvents[e.type] = true;
6562	},
6563
6564	_skipped: function (e) {
6565		var skipped = this._skipEvents[e.type];
6566		// reset when checking, as it's only used in map container and propagates outside of the map
6567		this._skipEvents[e.type] = false;
6568		return skipped;
6569	},
6570
6571	// check if element really left/entered the event target (for mouseenter/mouseleave)
6572	_checkMouse: function (el, e) {
6573
6574		var related = e.relatedTarget;
6575
6576		if (!related) { return true; }
6577
6578		try {
6579			while (related && (related !== el)) {
6580				related = related.parentNode;
6581			}
6582		} catch (err) {
6583			return false;
6584		}
6585		return (related !== el);
6586	},
6587
6588	_getEvent: function () { // evil magic for IE
6589		/*jshint noarg:false */
6590		var e = window.event;
6591		if (!e) {
6592			var caller = arguments.callee.caller;
6593			while (caller) {
6594				e = caller['arguments'][0];
6595				if (e && window.Event === e.constructor) {
6596					break;
6597				}
6598				caller = caller.caller;
6599			}
6600		}
6601		return e;
6602	},
6603
6604	// this is a horrible workaround for a bug in Android where a single touch triggers two click events
6605	_filterClick: function (e, handler) {
6606		var timeStamp = (e.timeStamp || e.originalEvent.timeStamp),

6607			elapsed = L.DomEvent._lastClick && (timeStamp - L.DomEvent._lastClick);
6608
6609		// are they closer together than 500ms yet more than 100ms?
6610		// Android typically triggers them ~300ms apart while multiple listeners
6611		// on the same event should be triggered far faster;
6612		// or check if click is simulated on the element, and if it is, reject any non-simulated events
6613
6614		if ((elapsed && elapsed > 100 && elapsed < 500) || (e.target._simulatedClick && !e._simulated)) {
6615			L.DomEvent.stop(e);
6616			return;
6617		}
6618		L.DomEvent._lastClick = timeStamp;
6619
6620		return handler(e);
6621	}
6622};
6623
6624L.DomEvent.on = L.DomEvent.addListener;
6625L.DomEvent.off = L.DomEvent.removeListener;
6626
6627
6628/*
6629 * L.Draggable allows you to add dragging capabilities to any element. Supports mobile devices too.
6630 */
6631
6632L.Draggable = L.Class.extend({
6633	includes: L.Mixin.Events,
6634
6635	statics: {
6636		START: L.Browser.touch ? ['touchstart', 'mousedown'] : ['mousedown'],
6637		END: {
6638			mousedown: 'mouseup',
6639			touchstart: 'touchend',
6640			pointerdown: 'touchend',
6641			MSPointerDown: 'touchend'
6642		},
6643		MOVE: {
6644			mousedown: 'mousemove',
6645			touchstart: 'touchmove',
6646			pointerdown: 'touchmove',
6647			MSPointerDown: 'touchmove'
6648		}
6649	},
6650
6651	initialize: function (element, dragStartTarget) {
6652		this._element = element;
6653		this._dragStartTarget = dragStartTarget || element;
6654	},
6655
6656	enable: function () {
6657		if (this._enabled) { return; }
6658
6659		for (var i = L.Draggable.START.length - 1; i >= 0; i--) {
6660			L.DomEvent.on(this._dragStartTarget, L.Draggable.START[i], this._onDown, this);
6661		}
6662
6663		this._enabled = true;
6664	},
6665
6666	disable: function () {
6667		if (!this._enabled) { return; }
6668
6669		for (var i = L.Draggable.START.length - 1; i >= 0; i--) {
6670			L.DomEvent.off(this._dragStartTarget, L.Draggable.START[i], this._onDown, this);
6671		}
6672
6673		this._enabled = false;
6674		this._moved = false;
6675	},
6676
6677	_onDown: function (e) {
6678		this._moved = false;
6679
6680		if (e.shiftKey || ((e.which !== 1) && (e.button !== 1) && !e.touches)) { return; }
6681
6682		L.DomEvent.stopPropagation(e);
6683
6684		if (L.Draggable._disabled) { return; }
6685
6686		L.DomUtil.disableImageDrag();
6687		L.DomUtil.disableTextSelection();
6688
6689		if (this._moving) { return; }
6690
6691		var first = e.touches ? e.touches[0] : e;
6692
6693		this._startPoint = new L.Point(first.clientX, first.clientY);
6694		this._startPos = this._newPos = L.DomUtil.getPosition(this._element);
6695
6696		L.DomEvent
6697		    .on(document, L.Draggable.MOVE[e.type], this._onMove, this)
6698		    .on(document, L.Draggable.END[e.type], this._onUp, this);
6699	},
6700
6701	_onMove: function (e) {
6702		if (e.touches && e.touches.length > 1) {
6703			this._moved = true;
6704			return;
6705		}
6706
6707		var first = (e.touches && e.touches.length === 1 ? e.touches[0] : e),
6708		    newPoint = new L.Point(first.clientX, first.clientY),
6709		    offset = newPoint.subtract(this._startPoint);
6710
6711		if (!offset.x && !offset.y) { return; }
6712		if (L.Browser.touch && Math.abs(offset.x) + Math.abs(offset.y) < 3) { return; }
6713
6714		L.DomEvent.preventDefault(e);
6715
6716		if (!this._moved) {
6717			this.fire('dragstart');
6718
6719			this._moved = true;
6720			this._startPos = L.DomUtil.getPosition(this._element).subtract(offset);
6721
6722			L.DomUtil.addClass(document.body, 'leaflet-dragging');
6723			this._lastTarget = e.target || e.srcElement;
6724			L.DomUtil.addClass(this._lastTarget, 'leaflet-drag-target');
6725		}
6726
6727		this._newPos = this._startPos.add(offset);
6728		this._moving = true;
6729
6730		L.Util.cancelAnimFrame(this._animRequest);
6731		this._animRequest = L.Util.requestAnimFrame(this._updatePosition, this, true, this._dragStartTarget);
6732	},
6733
6734	_updatePosition: function () {
6735		this.fire('predrag');
6736		L.DomUtil.setPosition(this._element, this._newPos);
6737		this.fire('drag');
6738	},
6739
6740	_onUp: function () {
6741		L.DomUtil.removeClass(document.body, 'leaflet-dragging');
6742
6743		if (this._lastTarget) {
6744			L.DomUtil.removeClass(this._lastTarget, 'leaflet-drag-target');
6745			this._lastTarget = null;
6746		}
6747
6748		for (var i in L.Draggable.MOVE) {
6749			L.DomEvent
6750			    .off(document, L.Draggable.MOVE[i], this._onMove)
6751			    .off(document, L.Draggable.END[i], this._onUp);
6752		}
6753
6754		L.DomUtil.enableImageDrag();
6755		L.DomUtil.enableTextSelection();
6756
6757		if (this._moved && this._moving) {
6758			// ensure drag is not fired after dragend

6759			L.Util.cancelAnimFrame(this._animRequest);
6760
6761			this.fire('dragend', {
6762				distance: this._newPos.distanceTo(this._startPos)
6763			});
6764		}
6765
6766		this._moving = false;
6767	}
6768});
6769
6770
6771/*
6772	L.Handler is a base class for handler classes that are used internally to inject
6773	interaction features like dragging to classes like Map and Marker.
6774*/
6775
6776L.Handler = L.Class.extend({
6777	initialize: function (map) {
6778		this._map = map;
6779	},
6780
6781	enable: function () {
6782		if (this._enabled) { return; }
6783
6784		this._enabled = true;
6785		this.addHooks();
6786	},
6787
6788	disable: function () {
6789		if (!this._enabled) { return; }
6790
6791		this._enabled = false;
6792		this.removeHooks();
6793	},
6794
6795	enabled: function () {
6796		return !!this._enabled;
6797	}
6798});
6799
6800
6801/*
6802 * L.Handler.MapDrag is used to make the map draggable (with panning inertia), enabled by default.
6803 */
6804
6805L.Map.mergeOptions({
6806	dragging: true,
6807
6808	inertia: !L.Browser.android23,
6809	inertiaDeceleration: 3400, // px/s^2
6810	inertiaMaxSpeed: Infinity, // px/s
6811	inertiaThreshold: L.Browser.touch ? 32 : 18, // ms
6812	easeLinearity: 0.25,
6813
6814	// TODO refactor, move to CRS
6815	worldCopyJump: false
6816});
6817
6818L.Map.Drag = L.Handler.extend({
6819	addHooks: function () {
6820		if (!this._draggable) {
6821			var map = this._map;
6822
6823			this._draggable = new L.Draggable(map._mapPane, map._container);
6824
6825			this._draggable.on({
6826				'dragstart': this._onDragStart,
6827				'drag': this._onDrag,
6828				'dragend': this._onDragEnd
6829			}, this);
6830
6831			if (map.options.worldCopyJump) {
6832				this._draggable.on('predrag', this._onPreDrag, this);
6833				map.on('viewreset', this._onViewReset, this);
6834
6835				map.whenReady(this._onViewReset, this);
6836			}
6837		}
6838		this._draggable.enable();
6839	},
6840
6841	removeHooks: function () {
6842		this._draggable.disable();
6843	},
6844
6845	moved: function () {
6846		return this._draggable && this._draggable._moved;
6847	},
6848
6849	_onDragStart: function () {
6850		var map = this._map;
6851
6852		if (map._panAnim) {
6853			map._panAnim.stop();
6854		}
6855
6856		map
6857		    .fire('movestart')
6858		    .fire('dragstart');
6859
6860		if (map.options.inertia) {
6861			this._positions = [];
6862			this._times = [];
6863		}
6864	},
6865
6866	_onDrag: function () {
6867		if (this._map.options.inertia) {
6868			var time = this._lastTime = +new Date(),
6869			    pos = this._lastPos = this._draggable._newPos;
6870
6871			this._positions.push(pos);
6872			this._times.push(time);
6873
6874			if (time - this._times[0] > 200) {
6875				this._positions.shift();
6876				this._times.shift();
6877			}
6878		}
6879
6880		this._map
6881		    .fire('move')
6882		    .fire('drag');
6883	},
6884
6885	_onViewReset: function () {
6886		// TODO fix hardcoded Earth values
6887		var pxCenter = this._map.getSize()._divideBy(2),
6888		    pxWorldCenter = this._map.latLngToLayerPoint([0, 0]);
6889
6890		this._initialWorldOffset = pxWorldCenter.subtract(pxCenter).x;
6891		this._worldWidth = this._map.project([0, 180]).x;
6892	},
6893
6894	_onPreDrag: function () {
6895		// TODO refactor to be able to adjust map pane position after zoom
6896		var worldWidth = this._worldWidth,
6897		    halfWidth = Math.round(worldWidth / 2),
6898		    dx = this._initialWorldOffset,
6899		    x = this._draggable._newPos.x,
6900		    newX1 = (x - halfWidth + dx) % worldWidth + halfWidth - dx,
6901		    newX2 = (x + halfWidth + dx) % worldWidth - halfWidth - dx,
6902		    newX = Math.abs(newX1 + dx) < Math.abs(newX2 + dx) ? newX1 : newX2;
6903
6904		this._draggable._newPos.x = newX;
6905	},
6906
6907	_onDragEnd: function (e) {
6908		var map = this._map,
6909		    options = map.options,
6910		    delay = +new Date() - this._lastTime,
6911
6912		    noInertia = !options.inertia || delay > options.inertiaThreshold || !this._positions[0];
6913
6914		map.fire('dragend', e);
6915
6916		if (noInertia) {
6917			map.fire('moveend');
6918
6919		} else {
6920
6921			var direction = this._lastPos.subtract(this._positions[0]),
6922			    duration = (this._lastTime + delay - this._times[0]) / 1000,
6923			    ease = options.easeLinearity,
6924
6925			    speedVector = direction.multiplyBy(ease / duration),
6926			    speed = speedVector.distanceTo([0, 0]),
6927
6928			    limitedSpeed = Math.min(options.inertiaMaxSpeed, speed),
6929			    limitedSpeedVector = speedVector.multiplyBy(limitedSpeed / speed),
6930
6931			    decelerationDuration = limitedSpeed / (options.inertiaDeceleration * ease),
6932			    offset = limitedSpeedVector.multiplyBy(-decelerationDuration / 2).round();
6933
6934			if (!offset.x || !offset.y) {
6935				map.fire('moveend');
6936
6937			} else {
6938				offset = map._limitOffset(offset, map.options.maxBounds);
6939

6940				L.Util.requestAnimFrame(function () {
6941					map.panBy(offset, {
6942						duration: decelerationDuration,
6943						easeLinearity: ease,
6944						noMoveStart: true
6945					});
6946				});
6947			}
6948		}
6949	}
6950});
6951
6952L.Map.addInitHook('addHandler', 'dragging', L.Map.Drag);
6953
6954
6955/*
6956 * L.Handler.DoubleClickZoom is used to handle double-click zoom on the map, enabled by default.
6957 */
6958
6959L.Map.mergeOptions({
6960	doubleClickZoom: true
6961});
6962
6963L.Map.DoubleClickZoom = L.Handler.extend({
6964	addHooks: function () {
6965		this._map.on('dblclick', this._onDoubleClick, this);
6966	},
6967
6968	removeHooks: function () {
6969		this._map.off('dblclick', this._onDoubleClick, this);
6970	},
6971
6972	_onDoubleClick: function (e) {
6973		var map = this._map,
6974		    zoom = map.getZoom() + (e.originalEvent.shiftKey ? -1 : 1);
6975
6976		if (map.options.doubleClickZoom === 'center') {
6977			map.setZoom(zoom);
6978		} else {
6979			map.setZoomAround(e.containerPoint, zoom);
6980		}
6981	}
6982});
6983
6984L.Map.addInitHook('addHandler', 'doubleClickZoom', L.Map.DoubleClickZoom);
6985
6986
6987/*
6988 * L.Handler.ScrollWheelZoom is used by L.Map to enable mouse scroll wheel zoom on the map.
6989 */
6990
6991L.Map.mergeOptions({
6992	scrollWheelZoom: false
6993});
6994
6995L.Map.ScrollWheelZoom = L.Handler.extend({
6996	addHooks: function () {
6997		L.DomEvent.on(this._map._container, 'mousewheel', this._onWheelScroll, this);
6998		L.DomEvent.on(this._map._container, 'MozMousePixelScroll', L.DomEvent.preventDefault);
6999		this._delta = 0;
7000	},
7001
7002	removeHooks: function () {
7003		L.DomEvent.off(this._map._container, 'mousewheel', this._onWheelScroll);
7004		L.DomEvent.off(this._map._container, 'MozMousePixelScroll', L.DomEvent.preventDefault);
7005	},
7006
7007	_onWheelScroll: function (e) {
7008		var delta = L.DomEvent.getWheelDelta(e);
7009
7010		this._delta += delta;
7011		this._lastMousePos = this._map.mouseEventToContainerPoint(e);
7012
7013		if (!this._startTime) {
7014			this._startTime = +new Date();
7015		}
7016
7017		var left = Math.max(40 - (+new Date() - this._startTime), 0);
7018
7019		clearTimeout(this._timer);
7020		this._timer = setTimeout(L.bind(this._performZoom, this), left);
7021
7022		L.DomEvent.preventDefault(e);
7023		L.DomEvent.stopPropagation(e);
7024	},
7025
7026	_performZoom: function () {
7027		var map = this._map,
7028		    delta = this._delta,
7029		    zoom = map.getZoom();
7030
7031		delta = delta > 0 ? Math.ceil(delta) : Math.floor(delta);
7032		delta = Math.max(Math.min(delta, 4), -4);
7033		delta = map._limitZoom(zoom + delta) - zoom;
7034
7035		this._delta = 0;
7036		this._startTime = null;
7037
7038		if (!delta) { return; }
7039
7040		if (map.options.scrollWheelZoom === 'center') {
7041			map.setZoom(zoom + delta);
7042		} else {
7043			map.setZoomAround(this._lastMousePos, zoom + delta);
7044		}
7045	}
7046});
7047
7048L.Map.addInitHook('addHandler', 'scrollWheelZoom', L.Map.ScrollWheelZoom);
7049
7050
7051/*
7052 * Extends the event handling code with double tap support for mobile browsers.
7053 */
7054
7055L.extend(L.DomEvent, {
7056
7057	_touchstart: L.Browser.msPointer ? 'MSPointerDown' : L.Browser.pointer ? 'pointerdown' : 'touchstart',
7058	_touchend: L.Browser.msPointer ? 'MSPointerUp' : L.Browser.pointer ? 'pointerup' : 'touchend',
7059
7060	// inspired by Zepto touch code by Thomas Fuchs
7061	addDoubleTapListener: function (obj, handler, id) {
7062		var last,
7063		    doubleTap = false,
7064		    delay = 250,
7065		    touch,
7066		    pre = '_leaflet_',
7067		    touchstart = this._touchstart,
7068		    touchend = this._touchend,
7069		    trackedTouches = [];
7070
7071		function onTouchStart(e) {
7072			var count;
7073
7074			if (L.Browser.pointer) {
7075				trackedTouches.push(e.pointerId);
7076				count = trackedTouches.length;
7077			} else {
7078				count = e.touches.length;
7079			}
7080			if (count > 1) {
7081				return;
7082			}
7083
7084			var now = Date.now(),
7085				delta = now - (last || now);
7086
7087			touch = e.touches ? e.touches[0] : e;
7088			doubleTap = (delta > 0 && delta <= delay);
7089			last = now;
7090		}
7091
7092		function onTouchEnd(e) {
7093			if (L.Browser.pointer) {
7094				var idx = trackedTouches.indexOf(e.pointerId);
7095				if (idx === -1) {
7096					return;
7097				}
7098				trackedTouches.splice(idx, 1);
7099			}
7100
7101			if (doubleTap) {
7102				if (L.Browser.pointer) {
7103					// work around .type being readonly with MSPointer* events
7104					var newTouch = { },
7105						prop;
7106
7107					// jshint forin:false
7108					for (var i in touch) {
7109						prop = touch[i];
7110						if (typeof prop === 'function') {
7111							newTouch[i] = prop.bind(touch);
7112						} else {
7113							newTouch[i] = prop;
7114						}
7115					}
7116					touch = newTouch;
7117				}
7118				touch.type = 'dblclick';
7119				handler(touch);
7120				last = null;
7121			}
7122		}
7123		obj[pre + touchstart + id] = onTouchStart;
7124		obj[pre + touchend + id] = onTouchEnd;
7125
7126		// on pointer we need to listen on the document, otherwise a drag starting on the map and moving off screen
7127		// will not come through to us, so we will lose track of how many touches are ongoing
7128		var endElement = L.Browser.pointer ? document.documentElement : obj;
7129
7130		obj.addEventListener(touchstart, onTouchStart, false);
7131		endElement.addEventListener(touchend, onTouchEnd, false);
7132
7133		if (L.Browser.pointer) {
7134			endElement.addEventListener(L.DomEvent.POINTER_CANCEL, onTouchEnd, false);
7135		}
7136
7137		return this;
7138	},
7139
7140	removeDoubleTapListener: function (obj, id) {
7141		var pre = '_leaflet_';
7142
7143		obj.removeEventListener(this._touchstart, obj[pre + this._touchstart + id], false);
7144		(L.Browser.pointer ? document.documentElement : obj).removeEventListener(
7145		        this._touchend, obj[pre + this._touchend + id], false);
7146
7147		if (L.Browser.pointer) {
7148			document.documentElement.removeEventListener(L.DomEvent.POINTER_CANCEL, obj[pre + this._touchend + id],
7149				false);
7150		}
7151
7152		return this;
7153	}
7154});
7155
7156
7157/*
7158 * Extends L.DomEvent to provide touch support for Internet Explorer and Windows-based devices.
7159 */
7160
7161L.extend(L.DomEvent, {
7162
7163	//static
7164	POINTER_DOWN: L.Browser.msPointer ? 'MSPointerDown' : 'pointerdown',

7165	POINTER_MOVE: L.Browser.msPointer ? 'MSPointerMove' : 'pointermove',
7166	POINTER_UP: L.Browser.msPointer ? 'MSPointerUp' : 'pointerup',
7167	POINTER_CANCEL: L.Browser.msPointer ? 'MSPointerCancel' : 'pointercancel',
7168
7169	_pointers: [],
7170	_pointerDocumentListener: false,
7171
7172	// Provides a touch events wrapper for (ms)pointer events.
7173	// Based on changes by veproza https://github.com/CloudMade/Leaflet/pull/1019
7174	//ref http://www.w3.org/TR/pointerevents/ https://www.w3.org/Bugs/Public/show_bug.cgi?id=22890
7175
7176	addPointerListener: function (obj, type, handler, id) {
7177
7178		switch (type) {
7179		case 'touchstart':
7180			return this.addPointerListenerStart(obj, type, handler, id);
7181		case 'touchend':
7182			return this.addPointerListenerEnd(obj, type, handler, id);
7183		case 'touchmove':
7184			return this.addPointerListenerMove(obj, type, handler, id);
7185		default:
7186			throw 'Unknown touch event type';
7187		}
7188	},
7189
7190	addPointerListenerStart: function (obj, type, handler, id) {
7191		var pre = '_leaflet_',
7192		    pointers = this._pointers;
7193
7194		var cb = function (e) {
7195
7196			L.DomEvent.preventDefault(e);
7197
7198			var alreadyInArray = false;
7199			for (var i = 0; i < pointers.length; i++) {
7200				if (pointers[i].pointerId === e.pointerId) {
7201					alreadyInArray = true;
7202					break;
7203				}
7204			}
7205			if (!alreadyInArray) {
7206				pointers.push(e);
7207			}
7208
7209			e.touches = pointers.slice();
7210			e.changedTouches = [e];
7211
7212			handler(e);
7213		};
7214
7215		obj[pre + 'touchstart' + id] = cb;
7216		obj.addEventListener(this.POINTER_DOWN, cb, false);
7217
7218		// need to also listen for end events to keep the _pointers list accurate
7219		// this needs to be on the body and never go away
7220		if (!this._pointerDocumentListener) {
7221			var internalCb = function (e) {
7222				for (var i = 0; i < pointers.length; i++) {
7223					if (pointers[i].pointerId === e.pointerId) {
7224						pointers.splice(i, 1);
7225						break;
7226					}
7227				}
7228			};
7229			//We listen on the documentElement as any drags that end by moving the touch off the screen get fired there
7230			document.documentElement.addEventListener(this.POINTER_UP, internalCb, false);
7231			document.documentElement.addEventListener(this.POINTER_CANCEL, internalCb, false);
7232
7233			this._pointerDocumentListener = true;
7234		}
7235
7236		return this;
7237	},
7238
7239	addPointerListenerMove: function (obj, type, handler, id) {
7240		var pre = '_leaflet_',
7241		    touches = this._pointers;
7242
7243		function cb(e) {
7244
7245			// don't fire touch moves when mouse isn't down
7246			if ((e.pointerType === e.MSPOINTER_TYPE_MOUSE || e.pointerType === 'mouse') && e.buttons === 0) { return; }
7247
7248			for (var i = 0; i < touches.length; i++) {
7249				if (touches[i].pointerId === e.pointerId) {
7250					touches[i] = e;
7251					break;
7252				}
7253			}
7254
7255			e.touches = touches.slice();
7256			e.changedTouches = [e];
7257
7258			handler(e);
7259		}
7260
7261		obj[pre + 'touchmove' + id] = cb;
7262		obj.addEventListener(this.POINTER_MOVE, cb, false);
7263
7264		return this;
7265	},
7266
7267	addPointerListenerEnd: function (obj, type, handler, id) {
7268		var pre = '_leaflet_',
7269		    touches = this._pointers;
7270
7271		var cb = function (e) {
7272			for (var i = 0; i < touches.length; i++) {
7273				if (touches[i].pointerId === e.pointerId) {
7274					touches.splice(i, 1);
7275					break;
7276				}
7277			}
7278
7279			e.touches = touches.slice();
7280			e.changedTouches = [e];
7281
7282			handler(e);
7283		};
7284
7285		obj[pre + 'touchend' + id] = cb;
7286		obj.addEventListener(this.POINTER_UP, cb, false);
7287		obj.addEventListener(this.POINTER_CANCEL, cb, false);
7288
7289		return this;
7290	},
7291
7292	removePointerListener: function (obj, type, id) {
7293		var pre = '_leaflet_',
7294		    cb = obj[pre + type + id];
7295
7296		switch (type) {
7297		case 'touchstart':
7298			obj.removeEventListener(this.POINTER_DOWN, cb, false);
7299			break;
7300		case 'touchmove':
7301			obj.removeEventListener(this.POINTER_MOVE, cb, false);
7302			break;
7303		case 'touchend':
7304			obj.removeEventListener(this.POINTER_UP, cb, false);
7305			obj.removeEventListener(this.POINTER_CANCEL, cb, false);
7306			break;
7307		}
7308
7309		return this;
7310	}
7311});
7312
7313
7314/*
7315 * L.Handler.TouchZoom is used by L.Map to add pinch zoom on supported mobile browsers.
7316 */
7317
7318L.Map.mergeOptions({
7319	touchZoom: L.Browser.touch && !L.Browser.android23,
7320	bounceAtZoomLimits: true
7321});
7322
7323L.Map.TouchZoom = L.Handler.extend({
7324	addHooks: function () {
7325		L.DomEvent.on(this._map._container, 'touchstart', this._onTouchStart, this);
7326	},
7327
7328	removeHooks: function () {
7329		L.DomEvent.off(this._map._container, 'touchstart', this._onTouchStart, this);
7330	},
7331
7332	_onTouchStart: function (e) {
7333		var map = this._map;
7334
7335		if (!e.touches || e.touches.length !== 2 || map._animatingZoom || this._zooming) { return; }
7336
7337		var p1 = map.mouseEventToLayerPoint(e.touches[0]),
7338		    p2 = map.mouseEventToLayerPoint(e.touches[1]),
7339		    viewCenter = map._getCenterLayerPoint();
7340
7341		this._startCenter = p1.add(p2)._divideBy(2);
7342		this._startDist = p1.distanceTo(p2);
7343
7344		this._moved = false;

7345		this._zooming = true;
7346
7347		this._centerOffset = viewCenter.subtract(this._startCenter);
7348
7349		if (map._panAnim) {
7350			map._panAnim.stop();
7351		}
7352
7353		L.DomEvent
7354		    .on(document, 'touchmove', this._onTouchMove, this)
7355		    .on(document, 'touchend', this._onTouchEnd, this);
7356
7357		L.DomEvent.preventDefault(e);
7358	},
7359
7360	_onTouchMove: function (e) {
7361		var map = this._map;
7362
7363		if (!e.touches || e.touches.length !== 2 || !this._zooming) { return; }
7364
7365		var p1 = map.mouseEventToLayerPoint(e.touches[0]),
7366		    p2 = map.mouseEventToLayerPoint(e.touches[1]);
7367
7368		this._scale = p1.distanceTo(p2) / this._startDist;
7369		this._delta = p1._add(p2)._divideBy(2)._subtract(this._startCenter);
7370
7371		if (this._scale === 1) { return; }
7372
7373		if (!map.options.bounceAtZoomLimits) {
7374			if ((map.getZoom() === map.getMinZoom() && this._scale < 1) ||
7375			    (map.getZoom() === map.getMaxZoom() && this._scale > 1)) { return; }
7376		}
7377
7378		if (!this._moved) {
7379			L.DomUtil.addClass(map._mapPane, 'leaflet-touching');
7380
7381			map
7382			    .fire('movestart')
7383			    .fire('zoomstart');
7384
7385			this._moved = true;
7386		}
7387
7388		L.Util.cancelAnimFrame(this._animRequest);
7389		this._animRequest = L.Util.requestAnimFrame(
7390		        this._updateOnMove, this, true, this._map._container);
7391
7392		L.DomEvent.preventDefault(e);
7393	},
7394
7395	_updateOnMove: function () {
7396		var map = this._map,
7397		    origin = this._getScaleOrigin(),
7398		    center = map.layerPointToLatLng(origin),
7399		    zoom = map.getScaleZoom(this._scale);
7400
7401		map._animateZoom(center, zoom, this._startCenter, this._scale, this._delta, false, true);
7402	},
7403
7404	_onTouchEnd: function () {
7405		if (!this._moved || !this._zooming) {
7406			this._zooming = false;
7407			return;
7408		}
7409
7410		var map = this._map;
7411
7412		this._zooming = false;
7413		L.DomUtil.removeClass(map._mapPane, 'leaflet-touching');
7414		L.Util.cancelAnimFrame(this._animRequest);
7415
7416		L.DomEvent
7417		    .off(document, 'touchmove', this._onTouchMove)
7418		    .off(document, 'touchend', this._onTouchEnd);
7419
7420		var origin = this._getScaleOrigin(),
7421		    center = map.layerPointToLatLng(origin),
7422
7423		    oldZoom = map.getZoom(),
7424		    floatZoomDelta = map.getScaleZoom(this._scale) - oldZoom,
7425		    roundZoomDelta = (floatZoomDelta > 0 ?
7426		            Math.ceil(floatZoomDelta) : Math.floor(floatZoomDelta)),
7427
7428		    zoom = map._limitZoom(oldZoom + roundZoomDelta),
7429		    scale = map.getZoomScale(zoom) / this._scale;
7430
7431		map._animateZoom(center, zoom, origin, scale);
7432	},
7433
7434	_getScaleOrigin: function () {
7435		var centerOffset = this._centerOffset.subtract(this._delta).divideBy(this._scale);
7436		return this._startCenter.add(centerOffset);
7437	}
7438});
7439
7440L.Map.addInitHook('addHandler', 'touchZoom', L.Map.TouchZoom);
7441
7442
7443/*
7444 * L.Map.Tap is used to enable mobile hacks like quick taps and long hold.
7445 */
7446
7447L.Map.mergeOptions({
7448	tap: true,
7449	tapTolerance: 15
7450});
7451
7452L.Map.Tap = L.Handler.extend({
7453	addHooks: function () {
7454		L.DomEvent.on(this._map._container, 'touchstart', this._onDown, this);
7455	},
7456
7457	removeHooks: function () {
7458		L.DomEvent.off(this._map._container, 'touchstart', this._onDown, this);
7459	},
7460
7461	_onDown: function (e) {
7462		if (!e.touches) { return; }
7463
7464		L.DomEvent.preventDefault(e);
7465
7466		this._fireClick = true;
7467
7468		// don't simulate click or track longpress if more than 1 touch
7469		if (e.touches.length > 1) {
7470			this._fireClick = false;
7471			clearTimeout(this._holdTimeout);
7472			return;
7473		}
7474
7475		var first = e.touches[0],
7476		    el = first.target;
7477
7478		this._startPos = this._newPos = new L.Point(first.clientX, first.clientY);
7479
7480		// if touching a link, highlight it
7481		if (el.tagName && el.tagName.toLowerCase() === 'a') {
7482			L.DomUtil.addClass(el, 'leaflet-active');
7483		}
7484
7485		// simulate long hold but setting a timeout
7486		this._holdTimeout = setTimeout(L.bind(function () {
7487			if (this._isTapValid()) {
7488				this._fireClick = false;
7489				this._onUp();
7490				this._simulateEvent('contextmenu', first);
7491			}
7492		}, this), 1000);
7493
7494		L.DomEvent
7495			.on(document, 'touchmove', this._onMove, this)
7496			.on(document, 'touchend', this._onUp, this);
7497	},
7498
7499	_onUp: function (e) {
7500		clearTimeout(this._holdTimeout);
7501
7502		L.DomEvent
7503			.off(document, 'touchmove', this._onMove, this)
7504			.off(document, 'touchend', this._onUp, this);
7505
7506		if (this._fireClick && e && e.changedTouches) {
7507
7508			var first = e.changedTouches[0],
7509			    el = first.target;
7510
7511			if (el && el.tagName && el.tagName.toLowerCase() === 'a') {
7512				L.DomUtil.removeClass(el, 'leaflet-active');
7513			}
7514
7515			// simulate click if the touch didn't move too much
7516			if (this._isTapValid()) {
7517				this._simulateEvent('click', first);
7518			}
7519		}
7520	},
7521
7522	_isTapValid: function () {
7523		return this._newPos.distanceTo(this._startPos) <= this._map.options.tapTolerance;
7524	},
7525
7526	_onMove: function (e) {
7527		var first = e.touches[0];
7528		this._newPos = new L.Point(first.clientX, first.clientY);
7529	},
7530
7531	_simulateEvent: function (type, e) {
7532		var simulatedEvent = document.createEvent('MouseEvents');
7533
7534		simulatedEvent._simulated = true;
7535		e.target._simulatedClick = true;
7536
7537		simulatedEvent.initMouseEvent(
7538		        type, true, true, window, 1,
7539		        e.screenX, e.screenY,
7540		        e.clientX, e.clientY,
7541		        false, false, false, false, 0, null);
7542
7543		e.target.dispatchEvent(simulatedEvent);
7544	}
7545});
7546
7547if (L.Browser.touch && !L.Browser.pointer) {
7548	L.Map.addInitHook('addHandler', 'tap', L.Map.Tap);
7549}
7550
7551
7552/*
7553 * L.Handler.ShiftDragZoom is used to add shift-drag zoom interaction to the map
7554  * (zoom to a selected bounding box), enabled by default.
7555 */
7556
7557L.Map.mergeOptions({
7558	boxZoom: true
7559});
7560
7561L.Map.BoxZoom = L.Handler.extend({
7562	initialize: function (map) {
7563		this._map = map;
7564		this._container = map._container;
7565		this._pane = map._panes.overlayPane;
7566		this._moved = false;

7567	},
7568
7569	addHooks: function () {
7570		L.DomEvent.on(this._container, 'mousedown', this._onMouseDown, this);
7571	},
7572
7573	removeHooks: function () {
7574		L.DomEvent.off(this._container, 'mousedown', this._onMouseDown);
7575		this._moved = false;
7576	},
7577
7578	moved: function () {
7579		return this._moved;
7580	},
7581
7582	_onMouseDown: function (e) {
7583		this._moved = false;
7584
7585		if (!e.shiftKey || ((e.which !== 1) && (e.button !== 1))) { return false; }
7586
7587		L.DomUtil.disableTextSelection();
7588		L.DomUtil.disableImageDrag();
7589
7590		this._startLayerPoint = this._map.mouseEventToLayerPoint(e);
7591
7592		L.DomEvent
7593		    .on(document, 'mousemove', this._onMouseMove, this)
7594		    .on(document, 'mouseup', this._onMouseUp, this)
7595		    .on(document, 'keydown', this._onKeyDown, this);
7596	},
7597
7598	_onMouseMove: function (e) {
7599		if (!this._moved) {
7600			this._box = L.DomUtil.create('div', 'leaflet-zoom-box', this._pane);
7601			L.DomUtil.setPosition(this._box, this._startLayerPoint);
7602
7603			//TODO refactor: move cursor to styles
7604			this._container.style.cursor = 'crosshair';
7605			this._map.fire('boxzoomstart');
7606		}
7607
7608		var startPoint = this._startLayerPoint,
7609		    box = this._box,
7610
7611		    layerPoint = this._map.mouseEventToLayerPoint(e),
7612		    offset = layerPoint.subtract(startPoint),
7613
7614		    newPos = new L.Point(
7615		        Math.min(layerPoint.x, startPoint.x),
7616		        Math.min(layerPoint.y, startPoint.y));
7617
7618		L.DomUtil.setPosition(box, newPos);
7619
7620		this._moved = true;
7621
7622		// TODO refactor: remove hardcoded 4 pixels
7623		box.style.width  = (Math.max(0, Math.abs(offset.x) - 4)) + 'px';
7624		box.style.height = (Math.max(0, Math.abs(offset.y) - 4)) + 'px';
7625	},
7626
7627	_finish: function () {
7628		if (this._moved) {
7629			this._pane.removeChild(this._box);
7630			this._container.style.cursor = '';
7631		}
7632
7633		L.DomUtil.enableTextSelection();
7634		L.DomUtil.enableImageDrag();
7635
7636		L.DomEvent
7637		    .off(document, 'mousemove', this._onMouseMove)
7638		    .off(document, 'mouseup', this._onMouseUp)
7639		    .off(document, 'keydown', this._onKeyDown);
7640	},
7641
7642	_onMouseUp: function (e) {
7643
7644		this._finish();
7645
7646		var map = this._map,
7647		    layerPoint = map.mouseEventToLayerPoint(e);
7648
7649		if (this._startLayerPoint.equals(layerPoint)) { return; }
7650
7651		var bounds = new L.LatLngBounds(
7652		        map.layerPointToLatLng(this._startLayerPoint),
7653		        map.layerPointToLatLng(layerPoint));
7654
7655		map.fitBounds(bounds);
7656
7657		map.fire('boxzoomend', {
7658			boxZoomBounds: bounds
7659		});
7660	},
7661
7662	_onKeyDown: function (e) {
7663		if (e.keyCode === 27) {
7664			this._finish();
7665		}
7666	}
7667});
7668
7669L.Map.addInitHook('addHandler', 'boxZoom', L.Map.BoxZoom);
7670
7671
7672/*
7673 * L.Map.Keyboard is handling keyboard interaction with the map, enabled by default.
7674 */
7675
7676L.Map.mergeOptions({
7677	keyboard: true,
7678	keyboardPanOffset: 80,
7679	keyboardZoomOffset: 1
7680});
7681
7682L.Map.Keyboard = L.Handler.extend({
7683
7684	keyCodes: {
7685		left:    [37],
7686		right:   [39],
7687		down:    [40],
7688		up:      [38],
7689		zoomIn:  [187, 107, 61, 171],
7690		zoomOut: [189, 109, 173]
7691	},
7692
7693	initialize: function (map) {
7694		this._map = map;
7695
7696		this._setPanOffset(map.options.keyboardPanOffset);
7697		this._setZoomOffset(map.options.keyboardZoomOffset);
7698	},
7699
7700	addHooks: function () {
7701		var container = this._map._container;
7702
7703		// make the container focusable by tabbing
7704		if (container.tabIndex === -1) {
7705			container.tabIndex = '0';
7706		}
7707
7708		L.DomEvent
7709		    .on(container, 'focus', this._onFocus, this)
7710		    .on(container, 'blur', this._onBlur, this)
7711		    .on(container, 'mousedown', this._onMouseDown, this);
7712
7713		this._map
7714		    .on('focus', this._addHooks, this)
7715		    .on('blur', this._removeHooks, this);
7716	},
7717
7718	removeHooks: function () {
7719		this._removeHooks();
7720
7721		var container = this._map._container;
7722
7723		L.DomEvent
7724		    .off(container, 'focus', this._onFocus, this)
7725		    .off(container, 'blur', this._onBlur, this)
7726		    .off(container, 'mousedown', this._onMouseDown, this);
7727
7728		this._map
7729		    .off('focus', this._addHooks, this)
7730		    .off('blur', this._removeHooks, this);
7731	},
7732
7733	_onMouseDown: function () {
7734		if (this._focused) { return; }
7735
7736		var body = document.body,
7737		    docEl = document.documentElement,
7738		    top = body.scrollTop || docEl.scrollTop,
7739		    left = body.scrollLeft || docEl.scrollLeft;
7740
7741		this._map._container.focus();
7742
7743		window.scrollTo(left, top);
7744	},
7745
7746	_onFocus: function () {
7747		this._focused = true;
7748		this._map.fire('focus');
7749	},
7750
7751	_onBlur: function () {
7752		this._focused = false;

7753		this._map.fire('blur');
7754	},
7755
7756	_setPanOffset: function (pan) {
7757		var keys = this._panKeys = {},
7758		    codes = this.keyCodes,
7759		    i, len;
7760
7761		for (i = 0, len = codes.left.length; i < len; i++) {
7762			keys[codes.left[i]] = [-1 * pan, 0];
7763		}
7764		for (i = 0, len = codes.right.length; i < len; i++) {
7765			keys[codes.right[i]] = [pan, 0];
7766		}
7767		for (i = 0, len = codes.down.length; i < len; i++) {
7768			keys[codes.down[i]] = [0, pan];
7769		}
7770		for (i = 0, len = codes.up.length; i < len; i++) {
7771			keys[codes.up[i]] = [0, -1 * pan];
7772		}
7773	},
7774
7775	_setZoomOffset: function (zoom) {
7776		var keys = this._zoomKeys = {},
7777		    codes = this.keyCodes,
7778		    i, len;
7779
7780		for (i = 0, len = codes.zoomIn.length; i < len; i++) {
7781			keys[codes.zoomIn[i]] = zoom;
7782		}
7783		for (i = 0, len = codes.zoomOut.length; i < len; i++) {
7784			keys[codes.zoomOut[i]] = -zoom;
7785		}
7786	},
7787
7788	_addHooks: function () {
7789		L.DomEvent.on(document, 'keydown', this._onKeyDown, this);
7790	},
7791
7792	_removeHooks: function () {
7793		L.DomEvent.off(document, 'keydown', this._onKeyDown, this);
7794	},
7795
7796	_onKeyDown: function (e) {
7797		var key = e.keyCode,
7798		    map = this._map;
7799
7800		if (key in this._panKeys) {
7801
7802			if (map._panAnim && map._panAnim._inProgress) { return; }
7803
7804			map.panBy(this._panKeys[key]);
7805
7806			if (map.options.maxBounds) {
7807				map.panInsideBounds(map.options.maxBounds);
7808			}
7809
7810		} else if (key in this._zoomKeys) {
7811			map.setZoom(map.getZoom() + this._zoomKeys[key]);
7812
7813		} else {
7814			return;
7815		}
7816
7817		L.DomEvent.stop(e);
7818	}
7819});
7820
7821L.Map.addInitHook('addHandler', 'keyboard', L.Map.Keyboard);
7822
7823
7824/*
7825 * L.Handler.MarkerDrag is used internally by L.Marker to make the markers draggable.
7826 */
7827
7828L.Handler.MarkerDrag = L.Handler.extend({
7829	initialize: function (marker) {
7830		this._marker = marker;
7831	},
7832
7833	addHooks: function () {
7834		var icon = this._marker._icon;
7835		if (!this._draggable) {
7836			this._draggable = new L.Draggable(icon, icon);
7837		}
7838
7839		this._draggable
7840			.on('dragstart', this._onDragStart, this)
7841			.on('drag', this._onDrag, this)
7842			.on('dragend', this._onDragEnd, this);
7843		this._draggable.enable();
7844		L.DomUtil.addClass(this._marker._icon, 'leaflet-marker-draggable');
7845	},
7846
7847	removeHooks: function () {
7848		this._draggable
7849			.off('dragstart', this._onDragStart, this)
7850			.off('drag', this._onDrag, this)
7851			.off('dragend', this._onDragEnd, this);
7852
7853		this._draggable.disable();
7854		L.DomUtil.removeClass(this._marker._icon, 'leaflet-marker-draggable');
7855	},
7856
7857	moved: function () {
7858		return this._draggable && this._draggable._moved;
7859	},
7860
7861	_onDragStart: function () {
7862		this._marker
7863		    .closePopup()
7864		    .fire('movestart')
7865		    .fire('dragstart');
7866	},
7867
7868	_onDrag: function () {
7869		var marker = this._marker,
7870		    shadow = marker._shadow,
7871		    iconPos = L.DomUtil.getPosition(marker._icon),
7872		    latlng = marker._map.layerPointToLatLng(iconPos);
7873
7874		// update shadow position
7875		if (shadow) {
7876			L.DomUtil.setPosition(shadow, iconPos);
7877		}
7878
7879		marker._latlng = latlng;
7880
7881		marker
7882		    .fire('move', {latlng: latlng})
7883		    .fire('drag');
7884	},
7885
7886	_onDragEnd: function (e) {
7887		this._marker
7888		    .fire('moveend')
7889		    .fire('dragend', e);
7890	}
7891});
7892
7893
7894/*
7895 * L.Control is a base class for implementing map controls. Handles positioning.
7896 * All other controls extend from this class.
7897 */
7898
7899L.Control = L.Class.extend({
7900	options: {
7901		position: 'topright'
7902	},
7903
7904	initialize: function (options) {
7905		L.setOptions(this, options);
7906	},
7907
7908	getPosition: function () {
7909		return this.options.position;
7910	},
7911
7912	setPosition: function (position) {
7913		var map = this._map;
7914
7915		if (map) {
7916			map.removeControl(this);
7917		}
7918
7919		this.options.position = position;
7920
7921		if (map) {
7922			map.addControl(this);
7923		}
7924
7925		return this;
7926	},
7927
7928	getContainer: function () {
7929		return this._container;
7930	},
7931
7932	addTo: function (map) {
7933		this._map = map;
7934
7935		var container = this._container = this.onAdd(map),
7936		    pos = this.getPosition(),
7937		    corner = map._controlCorners[pos];
7938
7939		L.DomUtil.addClass(container, 'leaflet-control');
7940
7941		if (pos.indexOf('bottom') !== -1) {
7942			corner.insertBefore(container, corner.firstChild);
7943		} else {
7944			corner.appendChild(container);
7945		}
7946
7947		return this;
7948	},
7949
7950	removeFrom: function (map) {
7951		var pos = this.getPosition(),
7952		    corner = map._controlCorners[pos];
7953
7954		corner.removeChild(this._container);
7955		this._map = null;
7956
7957		if (this.onRemove) {
7958			this.onRemove(map);
7959		}
7960
7961		return this;
7962	},
7963
7964	_refocusOnMap: function () {
7965		if (this._map) {
7966			this._map.getContainer().focus();
7967		}
7968	}
7969});
7970
7971L.control = function (options) {
7972	return new L.Control(options);
7973};
7974
7975
7976// adds control-related methods to L.Map
7977
7978L.Map.include({
7979	addControl: function (control) {
7980		control.addTo(this);
7981		return this;
7982	},
7983
7984	removeControl: function (control) {
7985		control.removeFrom(this);
7986		return this;
7987	},
7988
7989	_initControlPos: function () {
7990		var corners = this._controlCorners = {},
7991		    l = 'leaflet-',
7992		    container = this._controlContainer =
7993		            L.DomUtil.create('div', l + 'control-container', this._container);
7994
7995		function createCorner(vSide, hSide) {
7996			var className = l + vSide + ' ' + l + hSide;
7997
7998			corners[vSide + hSide] = L.DomUtil.create('div', className, container);
7999		}
8000
8001		createCorner('top', 'left');
8002		createCorner('top', 'right');
8003		createCorner('bottom', 'left');
8004		createCorner('bottom', 'right');
8005	},
8006
8007	_clearControlPos: function () {
8008		this._container.removeChild(this._controlContainer);
8009	}
8010});
8011
8012
8013/*
8014 * L.Control.Zoom is used for the default zoom buttons on the map.
8015 */
8016
8017L.Control.Zoom = L.Control.extend({
8018	options: {
8019		position: 'topleft',
8020		zoomInText: '+',
8021		zoomInTitle: 'Zoom in',
8022		zoomOutText: '-',
8023		zoomOutTitle: 'Zoom out'
8024	},
8025
8026	onAdd: function (map) {
8027		var zoomName = 'leaflet-control-zoom',
8028		    container = L.DomUtil.create('div', zoomName + ' leaflet-bar');
8029
8030		this._map = map;
8031
8032		this._zoomInButton  = this._createButton(
8033		        this.options.zoomInText, this.options.zoomInTitle,
8034		        zoomName + '-in',  container, this._zoomIn,  this);
8035		this._zoomOutButton = this._createButton(
8036		        this.options.zoomOutText, this.options.zoomOutTitle,
8037		        zoomName + '-out', container, this._zoomOut, this);
8038
8039		this._updateDisabled();
8040		map.on('zoomend zoomlevelschange', this._updateDisabled, this);
8041
8042		return container;
8043	},
8044
8045	onRemove: function (map) {
8046		map.off('zoomend zoomlevelschange', this._updateDisabled, this);
8047	},
8048
8049	_zoomIn: function (e) {
8050		this._map.zoomIn(e.shiftKey ? 3 : 1);
8051	},
8052
8053	_zoomOut: function (e) {
8054		this._map.zoomOut(e.shiftKey ? 3 : 1);
8055	},
8056
8057	_createButton: function (html, title, className, container, fn, context) {
8058		var link = L.DomUtil.create('a', className, container);
8059		link.innerHTML = html;
8060		link.href = '#';
8061		link.title = title;
8062
8063		var stop = L.DomEvent.stopPropagation;
8064
8065		L.DomEvent

8066		    .on(link, 'click', stop)
8067		    .on(link, 'mousedown', stop)
8068		    .on(link, 'dblclick', stop)
8069		    .on(link, 'click', L.DomEvent.preventDefault)
8070		    .on(link, 'click', fn, context)
8071		    .on(link, 'click', this._refocusOnMap, context);
8072
8073		return link;
8074	},
8075
8076	_updateDisabled: function () {
8077		var map = this._map,
8078			className = 'leaflet-disabled';
8079
8080		L.DomUtil.removeClass(this._zoomInButton, className);
8081		L.DomUtil.removeClass(this._zoomOutButton, className);
8082
8083		if (map._zoom === map.getMinZoom()) {
8084			L.DomUtil.addClass(this._zoomOutButton, className);
8085		}
8086		if (map._zoom === map.getMaxZoom()) {
8087			L.DomUtil.addClass(this._zoomInButton, className);
8088		}
8089	}
8090});
8091
8092L.Map.mergeOptions({
8093	zoomControl: true
8094});
8095
8096L.Map.addInitHook(function () {
8097	if (this.options.zoomControl) {
8098		this.zoomControl = new L.Control.Zoom();
8099		this.addControl(this.zoomControl);
8100	}
8101});
8102
8103L.control.zoom = function (options) {
8104	return new L.Control.Zoom(options);
8105};
8106
8107
8108
8109/*
8110 * L.Control.Attribution is used for displaying attribution on the map (added by default).
8111 */
8112
8113L.Control.Attribution = L.Control.extend({
8114	options: {
8115		position: 'bottomright',
8116		prefix: '<a href="http://leafletjs.com" title="A JS library for interactive maps">Leaflet</a>'
8117	},
8118
8119	initialize: function (options) {
8120		L.setOptions(this, options);
8121
8122		this._attributions = {};
8123	},
8124
8125	onAdd: function (map) {
8126		this._container = L.DomUtil.create('div', 'leaflet-control-attribution');
8127		L.DomEvent.disableClickPropagation(this._container);
8128
8129		for (var i in map._layers) {
8130			if (map._layers[i].getAttribution) {
8131				this.addAttribution(map._layers[i].getAttribution());
8132			}
8133		}
8134		
8135		map
8136		    .on('layeradd', this._onLayerAdd, this)
8137		    .on('layerremove', this._onLayerRemove, this);
8138
8139		this._update();
8140
8141		return this._container;
8142	},
8143
8144	onRemove: function (map) {
8145		map
8146		    .off('layeradd', this._onLayerAdd)
8147		    .off('layerremove', this._onLayerRemove);
8148
8149	},
8150
8151	setPrefix: function (prefix) {
8152		this.options.prefix = prefix;
8153		this._update();
8154		return this;
8155	},
8156
8157	addAttribution: function (text) {
8158		if (!text) { return; }
8159
8160		if (!this._attributions[text]) {
8161			this._attributions[text] = 0;
8162		}
8163		this._attributions[text]++;
8164
8165		this._update();
8166
8167		return this;
8168	},
8169
8170	removeAttribution: function (text) {
8171		if (!text) { return; }
8172
8173		if (this._attributions[text]) {
8174			this._attributions[text]--;
8175			this._update();
8176		}
8177
8178		return this;
8179	},
8180
8181	_update: function () {
8182		if (!this._map) { return; }
8183
8184		var attribs = [];
8185
8186		for (var i in this._attributions) {
8187			if (this._attributions[i]) {
8188				attribs.push(i);
8189			}
8190		}
8191
8192		var prefixAndAttribs = [];
8193
8194		if (this.options.prefix) {
8195			prefixAndAttribs.push(this.options.prefix);
8196		}
8197		if (attribs.length) {
8198			prefixAndAttribs.push(attribs.join(', '));
8199		}
8200
8201		this._container.innerHTML = prefixAndAttribs.join(' | ');
8202	},
8203
8204	_onLayerAdd: function (e) {
8205		if (e.layer.getAttribution) {
8206			this.addAttribution(e.layer.getAttribution());
8207		}
8208	},
8209
8210	_onLayerRemove: function (e) {
8211		if (e.layer.getAttribution) {
8212			this.removeAttribution(e.layer.getAttribution());
8213		}
8214	}
8215});
8216
8217L.Map.mergeOptions({
8218	attributionControl: true
8219});
8220
8221L.Map.addInitHook(function () {
8222	if (this.options.attributionControl) {
8223		this.attributionControl = (new L.Control.Attribution()).addTo(this);
8224	}
8225});
8226
8227L.control.attribution = function (options) {
8228	return new L.Control.Attribution(options);
8229};
8230
8231
8232/*
8233 * L.Control.Scale is used for displaying metric/imperial scale on the map.
8234 */
8235
8236L.Control.Scale = L.Control.extend({
8237	options: {
8238		position: 'bottomleft',
8239		maxWidth: 100,
8240		metric: true,
8241		imperial: true,
8242		updateWhenIdle: false
8243	},
8244
8245	onAdd: function (map) {
8246		this._map = map;
8247
8248		var className = 'leaflet-control-scale',
8249		    container = L.DomUtil.create('div', className),
8250		    options = this.options;
8251
8252		this._addScales(options, className, container);
8253
8254		map.on(options.updateWhenIdle ? 'moveend' : 'move', this._update, this);
8255		map.whenReady(this._update, this);
8256
8257		return container;
8258	},
8259
8260	onRemove: function (map) {
8261		map.off(this.options.updateWhenIdle ? 'moveend' : 'move', this._update, this);
8262	},
8263
8264	_addScales: function (options, className, container) {
8265		if (options.metric) {
8266			this._mScale = L.DomUtil.create('div', className + '-line', container);
8267		}
8268		if (options.imperial) {
8269			this._iScale = L.DomUtil.create('div', className + '-line', container);
8270		}
8271	},
8272
8273	_update: function () {
8274		var bounds = this._map.getBounds(),
8275		    centerLat = bounds.getCenter().lat,
8276		    halfWorldMeters = 6378137 * Math.PI * Math.cos(centerLat * Math.PI / 180),
8277		    dist = halfWorldMeters * (bounds.getNorthEast().lng - bounds.getSouthWest

8277().lng) / 180,
8278
8279		    size = this._map.getSize(),
8280		    options = this.options,
8281		    maxMeters = 0;
8282
8283		if (size.x > 0) {
8284			maxMeters = dist * (options.maxWidth / size.x);
8285		}
8286
8287		this._updateScales(options, maxMeters);
8288	},
8289
8290	_updateScales: function (options, maxMeters) {
8291		if (options.metric && maxMeters) {
8292			this._updateMetric(maxMeters);
8293		}
8294
8295		if (options.imperial && maxMeters) {
8296			this._updateImperial(maxMeters);
8297		}
8298	},
8299
8300	_updateMetric: function (maxMeters) {
8301		var meters = this._getRoundNum(maxMeters);
8302
8303		this._mScale.style.width = this._getScaleWidth(meters / maxMeters) + 'px';
8304		this._mScale.innerHTML = meters < 1000 ? meters + ' m' : (meters / 1000) + ' km';
8305	},
8306
8307	_updateImperial: function (maxMeters) {
8308		var maxFeet = maxMeters * 3.2808399,
8309		    scale = this._iScale,
8310		    maxMiles, miles, feet;
8311
8312		if (maxFeet > 5280) {
8313			maxMiles = maxFeet / 5280;
8314			miles = this._getRoundNum(maxMiles);
8315
8316			scale.style.width = this._getScaleWidth(miles / maxMiles) + 'px';
8317			scale.innerHTML = miles + ' mi';
8318
8319		} else {
8320			feet = this._getRoundNum(maxFeet);
8321
8322			scale.style.width = this._getScaleWidth(feet / maxFeet) + 'px';
8323			scale.innerHTML = feet + ' ft';
8324		}
8325	},
8326
8327	_getScaleWidth: function (ratio) {
8328		return Math.round(this.options.maxWidth * ratio) - 10;
8329	},
8330
8331	_getRoundNum: function (num) {
8332		var pow10 = Math.pow(10, (Math.floor(num) + '').length - 1),
8333		    d = num / pow10;
8334
8335		d = d >= 10 ? 10 : d >= 5 ? 5 : d >= 3 ? 3 : d >= 2 ? 2 : 1;
8336
8337		return pow10 * d;
8338	}
8339});
8340
8341L.control.scale = function (options) {
8342	return new L.Control.Scale(options);
8343};
8344
8345
8346/*
8347 * L.Control.Layers is a control to allow users to switch between different layers on the map.
8348 */
8349
8350L.Control.Layers = L.Control.extend({
8351	options: {
8352		collapsed: true,
8353		position: 'topright',
8354		autoZIndex: true
8355	},
8356
8357	initialize: function (baseLayers, overlays, options) {
8358		L.setOptions(this, options);
8359
8360		this._layers = {};
8361		this._lastZIndex = 0;
8362		this._handlingClick = false;
8363
8364		for (var i in baseLayers) {
8365			this._addLayer(baseLayers[i], i);
8366		}
8367
8368		for (i in overlays) {
8369			this._addLayer(overlays[i], i, true);
8370		}
8371	},
8372
8373	onAdd: function (map) {
8374		this._initLayout();
8375		this._update();
8376
8377		map
8378		    .on('layeradd', this._onLayerChange, this)
8379		    .on('layerremove', this._onLayerChange, this);
8380
8381		return this._container;
8382	},
8383
8384	onRemove: function (map) {
8385		map
8386		    .off('layeradd', this._onLayerChange, this)
8387		    .off('layerremove', this._onLayerChange, this);
8388	},
8389
8390	addBaseLayer: function (layer, name) {
8391		this._addLayer(layer, name);
8392		this._update();
8393		return this;
8394	},
8395
8396	addOverlay: function (layer, name) {
8397		this._addLayer(layer, name, true);
8398		this._update();
8399		return this;
8400	},
8401
8402	removeLayer: function (layer) {
8403		var id = L.stamp(layer);
8404		delete this._layers[id];
8405		this._update();
8406		return this;
8407	},
8408
8409	_initLayout: function () {
8410		var className = 'leaflet-control-layers',
8411		    container = this._container = L.DomUtil.create('div', className);
8412
8413		//Makes this work on IE10 Touch devices by stopping it from firing a mouseout event when the touch is released
8414		container.setAttribute('aria-haspopup', true);
8415
8416		if (!L.Browser.touch) {
8417			L.DomEvent
8418				.disableClickPropagation(container)
8419				.disableScrollPropagation(container);
8420		} else {
8421			L.DomEvent.on(container, 'click', L.DomEvent.stopPropagation);
8422		}
8423
8424		var form = this._form = L.DomUtil.create('form', className + '-list');
8425
8426		if (this.options.collapsed) {
8427			if (!L.Browser.android) {
8428				L.DomEvent
8429				    .on(container, 'mouseover', this._expand, this)
8430				    .on(container, 'mouseout', this._collapse, this);
8431			}
8432			var link = this._layersLink = L.DomUtil.create('a', className + '-toggle', container);
8433			link.href = '#';
8434			link.title = 'Layers';
8435
8436			if (L.Browser.touch) {
8437				L.DomEvent
8438				    .on(link, 'click', L.DomEvent.stop)
8439				    .on(link, 'click', this._expand, this);
8440			}
8441			else {
8442				L.DomEvent.on(link, 'focus', this._expand, this);
8443			}
8444			//Work around for Firefox android issue https://github.com/Leaflet/Leaflet/issues/2033
8445			L.DomEvent.on(form, 'click', function () {
8446				setTimeout(L.bind(this._onInputClick, this), 0);
8447			}, this);
8448
8449			this._map.on('click', this._collapse, this);
8450			// TODO keyboard accessibility
8451		} else {
8452			this._expand();
8453		}
8454
8455		this._baseLayersList = L.DomUtil.create('div', className + '-base', form);
8456		this._separator = L.DomUtil.create('div', className + '-separator', form);
8457		this._overlaysList = L.DomUtil.create('div', className + '-overlays', form);
8458
8459		container.appendChild(form);
8460	},
8461
8462	_addLayer: function (layer, name, overlay) {
8463		var id = L.stamp(layer);
8464
8465		this._layers[id] = {
8466			layer: layer,
8467			name: name,
8468			overlay: overlay
8469		};
8470

8471		if (this.options.autoZIndex && layer.setZIndex) {
8472			this._lastZIndex++;
8473			layer.setZIndex(this._lastZIndex);
8474		}
8475	},
8476
8477	_update: function () {
8478		if (!this._container) {
8479			return;
8480		}
8481
8482		this._baseLayersList.innerHTML = '';
8483		this._overlaysList.innerHTML = '';
8484
8485		var baseLayersPresent = false,
8486		    overlaysPresent = false,
8487		    i, obj;
8488
8489		for (i in this._layers) {
8490			obj = this._layers[i];
8491			this._addItem(obj);
8492			overlaysPresent = overlaysPresent || obj.overlay;
8493			baseLayersPresent = baseLayersPresent || !obj.overlay;
8494		}
8495
8496		this._separator.style.display = overlaysPresent && baseLayersPresent ? '' : 'none';
8497	},
8498
8499	_onLayerChange: function (e) {
8500		var obj = this._layers[L.stamp(e.layer)];
8501
8502		if (!obj) { return; }
8503
8504		if (!this._handlingClick) {
8505			this._update();
8506		}
8507
8508		var type = obj.overlay ?
8509			(e.type === 'layeradd' ? 'overlayadd' : 'overlayremove') :
8510			(e.type === 'layeradd' ? 'baselayerchange' : null);
8511
8512		if (type) {
8513			this._map.fire(type, obj);
8514		}
8515	},
8516
8517	// IE7 bugs out if you create a radio dynamically, so you have to do it this hacky way (see http://bit.ly/PqYLBe)
8518	_createRadioElement: function (name, checked) {
8519
8520		var radioHtml = '<input type="radio" class="leaflet-control-layers-selector" name="' + name + '"';
8521		if (checked) {
8522			radioHtml += ' checked="checked"';
8523		}
8524		radioHtml += '/>';
8525
8526		var radioFragment = document.createElement('div');
8527		radioFragment.innerHTML = radioHtml;
8528
8529		return radioFragment.firstChild;
8530	},
8531
8532	_addItem: function (obj) {
8533		var label = document.createElement('label'),
8534		    input,
8535		    checked = this._map.hasLayer(obj.layer);
8536
8537		if (obj.overlay) {
8538			input = document.createElement('input');
8539			input.type = 'checkbox';
8540			input.className = 'leaflet-control-layers-selector';
8541			input.defaultChecked = checked;
8542		} else {
8543			input = this._createRadioElement('leaflet-base-layers', checked);
8544		}
8545
8546		input.layerId = L.stamp(obj.layer);
8547
8548		L.DomEvent.on(input, 'click', this._onInputClick, this);
8549
8550		var name = document.createElement('span');
8551		name.innerHTML = ' ' + obj.name;
8552
8553		label.appendChild(input);
8554		label.appendChild(name);
8555
8556		var container = obj.overlay ? this._overlaysList : this._baseLayersList;
8557		container.appendChild(label);
8558
8559		return label;
8560	},
8561
8562	_onInputClick: function () {
8563		var i, input, obj,
8564		    inputs = this._form.getElementsByTagName('input'),
8565		    inputsLen = inputs.length;
8566
8567		this._handlingClick = true;
8568
8569		for (i = 0; i < inputsLen; i++) {
8570			input = inputs[i];
8571			obj = this._layers[input.layerId];
8572
8573			if (input.checked && !this._map.hasLayer(obj.layer)) {
8574				this._map.addLayer(obj.layer);
8575
8576			} else if (!input.checked && this._map.hasLayer(obj.layer)) {
8577				this._map.removeLayer(obj.layer);
8578			}
8579		}
8580
8581		this._handlingClick = false;
8582
8583		this._refocusOnMap();
8584	},
8585
8586	_expand: function () {
8587		L.DomUtil.addClass(this._container, 'leaflet-control-layers-expanded');
8588	},
8589
8590	_collapse: function () {
8591		this._container.className = this._container.className.replace(' leaflet-control-layers-expanded', '');
8592	}
8593});
8594
8595L.control.layers = function (baseLayers, overlays, options) {
8596	return new L.Control.Layers(baseLayers, overlays, options);
8597};
8598
8599
8600/*
8601 * L.PosAnimation is used by Leaflet internally for pan animations.
8602 */
8603
8604L.PosAnimation = L.Class.extend({
8605	includes: L.Mixin.Events,
8606
8607	run: function (el, newPos, duration, easeLinearity) { // (HTMLElement, Point[, Number, Number])
8608		this.stop();
8609
8610		this._el = el;
8611		this._inProgress = true;
8612		this._newPos = newPos;
8613
8614		this.fire('start');
8615
8616		el.style[L.DomUtil.TRANSITION] = 'all ' + (duration || 0.25) +
8617		        's cubic-bezier(0,0,' + (easeLinearity || 0.5) + ',1)';
8618
8619		L.DomEvent.on(el, L.DomUtil.TRANSITION_END, this._onTransitionEnd, this);
8620		L.DomUtil.setPosition(el, newPos);
8621
8622		// toggle reflow, Chrome flickers for some reason if you don't do this
8623		L.Util.falseFn(el.offsetWidth);
8624
8625		// there's no native way to track value updates of transitioned properties, so we imitate this
8626		this._stepTimer = setInterval(L.bind(this._onStep, this), 50);
8627	},
8628
8629	stop: function () {
8630		if (!this._inProgress) { return; }
8631
8632		// if we just removed the transition property, the element would jump to its final position,
8633		// so we need to make it stay at the current position
8634
8635		L.DomUtil.setPosition(this._el, this._getPos());
8636		this._onTransitionEnd();
8637		L.Util.falseFn(this._el.offsetWidth); // force reflow in case we are about to start a new animation
8638	},
8639
8640	_onStep: function () {
8641		var stepPos = this._getPos();
8642		if (!stepPos) {
8643			this._onTransitionEnd();
8644			return;
8645		}
8646		// jshint camelcase: false
8647		// make L.DomUtil.getPosition return intermediate position value during animation
8648		this._el._leaflet_pos = stepPos;
8649
8650		this.fire('step');
8651	},
8652
8653	// you can't easily get intermediate values of properties animated with CSS3 Transitions,
8654	// we need to parse computed style (in case of transform it returns matrix string)
8655
8656	_transformRe: /([-+]?(?:\d*\.)?\d+)\D*, ([-+]?(?:\d*\.)?\d+)\D*\)/,
8657
8658	_getPos: function () {
8659		var left, top, matches,
8660		    el = this._el,
8661		    style = window.getComputedStyle(el);
8662
8663		if (L.Browser.any3d) {
8664			matches = style[L.DomUtil.TRANSFORM].match(this._transformRe);
8665			if (!matches) { return; }
8666			left = parseFloat(matches[1]);
8667			top  = parseFloat(matches[2]);
8668		} else {
8669			left = parseFloat(style.left);
8670			top  = parseFloat(style.top);
8671		}
8672
8673		return new L.Point(left, top, true);
8674	},
8675
8676	_onTransitionEnd: function () {
8677		L.DomEvent.off(this._el, L.DomUtil.TRANSITION_END, this._onTransitionEnd, this);
8678
8679		if (!this._inProgress) { return; }
8680		this._inProgress = false;

8681
8682		this._el.style[L.DomUtil.TRANSITION] = '';
8683
8684		// jshint camelcase: false
8685		// make sure L.DomUtil.getPosition returns the final position value after animation
8686		this._el._leaflet_pos = this._newPos;
8687
8688		clearInterval(this._stepTimer);
8689
8690		this.fire('step').fire('end');
8691	}
8692
8693});
8694
8695
8696/*
8697 * Extends L.Map to handle panning animations.
8698 */
8699
8700L.Map.include({
8701
8702	setView: function (center, zoom, options) {
8703
8704		zoom = zoom === undefined ? this._zoom : this._limitZoom(zoom);
8705		center = this._limitCenter(L.latLng(center), zoom, this.options.maxBounds);
8706		options = options || {};
8707
8708		if (this._panAnim) {
8709			this._panAnim.stop();
8710		}
8711
8712		if (this._loaded && !options.reset && options !== true) {
8713
8714			if (options.animate !== undefined) {
8715				options.zoom = L.extend({animate: options.animate}, options.zoom);
8716				options.pan = L.extend({animate: options.animate}, options.pan);
8717			}
8718
8719			// try animating pan or zoom
8720			var animated = (this._zoom !== zoom) ?
8721				this._tryAnimatedZoom && this._tryAnimatedZoom(center, zoom, options.zoom) :
8722				this._tryAnimatedPan(center, options.pan);
8723
8724			if (animated) {
8725				// prevent resize handler call, the view will refresh after animation anyway
8726				clearTimeout(this._sizeTimer);
8727				return this;
8728			}
8729		}
8730
8731		// animation didn't start, just reset the map view
8732		this._resetView(center, zoom);
8733
8734		return this;
8735	},
8736
8737	panBy: function (offset, options) {
8738		offset = L.point(offset).round();
8739		options = options || {};
8740
8741		if (!offset.x && !offset.y) {
8742			return this;
8743		}
8744
8745		if (!this._panAnim) {
8746			this._panAnim = new L.PosAnimation();
8747
8748			this._panAnim.on({
8749				'step': this._onPanTransitionStep,
8750				'end': this._onPanTransitionEnd
8751			}, this);
8752		}
8753
8754		// don't fire movestart if animating inertia
8755		if (!options.noMoveStart) {
8756			this.fire('movestart');
8757		}
8758
8759		// animate pan unless animate: false specified
8760		if (options.animate !== false) {
8761			L.DomUtil.addClass(this._mapPane, 'leaflet-pan-anim');
8762
8763			var newPos = this._getMapPanePos().subtract(offset);
8764			this._panAnim.run(this._mapPane, newPos, options.duration || 0.25, options.easeLinearity);
8765		} else {
8766			this._rawPanBy(offset);
8767			this.fire('move').fire('moveend');
8768		}
8769
8770		return this;
8771	},
8772
8773	_onPanTransitionStep: function () {
8774		this.fire('move');
8775	},
8776
8777	_onPanTransitionEnd: function () {
8778		L.DomUtil.removeClass(this._mapPane, 'leaflet-pan-anim');
8779		this.fire('moveend');
8780	},
8781
8782	_tryAnimatedPan: function (center, options) {
8783		// difference between the new and current centers in pixels
8784		var offset = this._getCenterOffset(center)._floor();
8785
8786		// don't animate too far unless animate: true specified in options
8787		if ((options && options.animate) !== true && !this.getSize().contains(offset)) { return false; }
8788
8789		this.panBy(offset, options);
8790
8791		return true;
8792	}
8793});
8794
8795
8796/*
8797 * L.PosAnimation fallback implementation that powers Leaflet pan animations
8798 * in browsers that don't support CSS3 Transitions.
8799 */
8800
8801L.PosAnimation = L.DomUtil.TRANSITION ? L.PosAnimation : L.PosAnimation.extend({
8802
8803	run: function (el, newPos, duration, easeLinearity) { // (HTMLElement, Point[, Number, Number])
8804		this.stop();
8805
8806		this._el = el;
8807		this._inProgress = true;
8808		this._duration = duration || 0.25;
8809		this._easeOutPower = 1 / Math.max(easeLinearity || 0.5, 0.2);
8810
8811		this._startPos = L.DomUtil.getPosition(el);
8812		this._offset = newPos.subtract(this._startPos);
8813		this._startTime = +new Date();
8814
8815		this.fire('start');
8816
8817		this._animate();
8818	},
8819
8820	stop: function () {
8821		if (!this._inProgress) { return; }
8822
8823		this._step();
8824		this._complete();
8825	},
8826
8827	_animate: function () {
8828		// animation loop
8829		this._animId = L.Util.requestAnimFrame(this._animate, this);
8830		this._step();
8831	},
8832
8833	_step: function () {
8834		var elapsed = (+new Date()) - this._startTime,
8835		    duration = this._duration * 1000;
8836
8837		if (elapsed < duration) {
8838			this._runFrame(this._easeOut(elapsed / duration));
8839		} else {
8840			this._runFrame(1);
8841			this._complete();
8842		}
8843	},
8844
8845	_runFrame: function (progress) {
8846		var pos = this._startPos.add(this._offset.multiplyBy(progress));
8847		L.DomUtil.setPosition(this._el, pos);
8848
8849		this.fire('step');
8850	},
8851
8852	_complete: function () {

8853		L.Util.cancelAnimFrame(this._animId);
8854
8855		this._inProgress = false;
8856		this.fire('end');
8857	},
8858
8859	_easeOut: function (t) {
8860		return 1 - Math.pow(1 - t, this._easeOutPower);
8861	}
8862});
8863
8864
8865/*
8866 * Extends L.Map to handle zoom animations.
8867 */
8868
8869L.Map.mergeOptions({
8870	zoomAnimation: true,
8871	zoomAnimationThreshold: 4
8872});
8873
8874if (L.DomUtil.TRANSITION) {
8875
8876	L.Map.addInitHook(function () {
8877		// don't animate on browsers without hardware-accelerated transitions or old Android/Opera
8878		this._zoomAnimated = this.options.zoomAnimation && L.DomUtil.TRANSITION &&
8879				L.Browser.any3d && !L.Browser.android23 && !L.Browser.mobileOpera;
8880
8881		// zoom transitions run with the same duration for all layers, so if one of transitionend events
8882		// happens after starting zoom animation (propagating to the map pane), we know that it ended globally
8883		if (this._zoomAnimated) {
8884			L.DomEvent.on(this._mapPane, L.DomUtil.TRANSITION_END, this._catchTransitionEnd, this);
8885		}
8886	});
8887}
8888
8889L.Map.include(!L.DomUtil.TRANSITION ? {} : {
8890
8891	_catchTransitionEnd: function (e) {
8892		if (this._animatingZoom && e.propertyName.indexOf('transform') >= 0) {
8893			this._onZoomTransitionEnd();
8894		}
8895	},
8896
8897	_nothingToAnimate: function () {
8898		return !this._container.getElementsByClassName('leaflet-zoom-animated').length;
8899	},
8900
8901	_tryAnimatedZoom: function (center, zoom, options) {
8902
8903		if (this._animatingZoom) { return true; }
8904
8905		options = options || {};
8906
8907		// don't animate if disabled, not supported or zoom difference is too large
8908		if (!this._zoomAnimated || options.animate === false || this._nothingToAnimate() ||
8909		        Math.abs(zoom - this._zoom) > this.options.zoomAnimationThreshold) { return false; }
8910
8911		// offset is the pixel coords of the zoom origin relative to the current center
8912		var scale = this.getZoomScale(zoom),
8913		    offset = this._getCenterOffset(center)._divideBy(1 - 1 / scale),
8914			origin = this._getCenterLayerPoint()._add(offset);
8915
8916		// don't animate if the zoom origin isn't within one screen from the current center, unless forced
8917		if (options.animate !== true && !this.getSize().contains(offset)) { return false; }
8918
8919		this
8920		    .fire('movestart')
8921		    .fire('zoomstart');
8922
8923		this._animateZoom(center, zoom, origin, scale, null, true);
8924
8925		return true;
8926	},
8927
8928	_animateZoom: function (center, zoom, origin, scale, delta, backwards, forTouchZoom) {
8929
8930		if (!forTouchZoom) {
8931			this._animatingZoom = true;
8932		}
8933
8934		// put transform transition on all layers with leaflet-zoom-animated class
8935		L.DomUtil.addClass(this._mapPane, 'leaflet-zoom-anim');
8936
8937		// remember what center/zoom to set after animation
8938		this._animateToCenter = center;
8939		this._animateToZoom = zoom;
8940
8941		// disable any dragging during animation
8942		if (L.Draggable) {
8943			L.Draggable._disabled = true;
8944		}
8945
8946		L.Util.requestAnimFrame(function () {
8947			this.fire('zoomanim', {
8948				center: center,
8949				zoom: zoom,
8950				origin: origin,
8951				scale: scale,
8952				delta: delta,
8953				backwards: backwards
8954			});
8955		}, this);
8956	},
8957
8958	_onZoomTransitionEnd: function () {
8959
8960		this._animatingZoom = false;

8961
8962		L.DomUtil.removeClass(this._mapPane, 'leaflet-zoom-anim');
8963
8964		this._resetView(this._animateToCenter, this._animateToZoom, true, true);
8965
8966		if (L.Draggable) {
8967			L.Draggable._disabled = false;
8968		}
8969	}
8970});
8971
8972
8973/*
8974	Zoom animation logic for L.TileLayer.
8975*/
8976
8977L.TileLayer.include({
8978	_animateZoom: function (e) {
8979		if (!this._animating) {
8980			this._animating = true;
8981			this._prepareBgBuffer();
8982		}
8983
8984		var bg = this._bgBuffer,
8985		    transform = L.DomUtil.TRANSFORM,
8986		    initialTransform = e.delta ? L.DomUtil.getTranslateString(e.delta) : bg.style[transform],
8987		    scaleStr = L.DomUtil.getScaleString(e.scale, e.origin);
8988
8989		bg.style[transform] = e.backwards ?
8990				scaleStr + ' ' + initialTransform :
8991				initialTransform + ' ' + scaleStr;
8992	},
8993
8994	_endZoomAnim: function () {
8995		var front = this._tileContainer,
8996		    bg = this._bgBuffer;
8997
8998		front.style.visibility = '';
8999		front.parentNode.appendChild(front); // Bring to fore
9000
9001		// force reflow
9002		L.Util.falseFn(bg.offsetWidth);
9003
9004		this._animating = false;
9005	},
9006
9007	_clearBgBuffer: function () {
9008		var map = this._map;
9009
9010		if (map && !map._animatingZoom && !map.touchZoom._zooming) {
9011			this._bgBuffer.innerHTML = '';
9012			this._bgBuffer.style[L.DomUtil.TRANSFORM] = '';
9013		}
9014	},
9015
9016	_prepareBgBuffer: function () {
9017
9018		var front = this._tileContainer,
9019		    bg = this._bgBuffer;
9020
9021		// if foreground layer doesn't have many tiles but bg layer does,
9022		// keep the existing bg layer and just zoom it some more
9023
9024		var bgLoaded = this._getLoadedTilesPercentage(bg),
9025		    frontLoaded = this._getLoadedTilesPercentage(front);
9026
9027		if (bg && bgLoaded > 0.5 && frontLoaded < 0.5) {
9028
9029			front.style.visibility = 'hidden';
9030			this._stopLoadingImages(front);
9031			return;
9032		}
9033
9034		// prepare the buffer to become the front tile pane
9035		bg.style.visibility = 'hidden';
9036		bg.style[L.DomUtil.TRANSFORM] = '';
9037
9038		// switch out the current layer to be the new bg layer (and vice-versa)
9039		this._tileContainer = bg;
9040		bg = this._bgBuffer = front;
9041
9042		this._stopLoadingImages(bg);
9043
9044		//prevent bg buffer from clearing right after zoom
9045		clearTimeout(this._clearBgBufferTimer);
9046	},
9047
9048	_getLoadedTilesPercentage: function (container) {
9049		var tiles = container.getElementsByTagName('img'),
9050		    i, len, count = 0;
9051
9052		for (i = 0, len = tiles.length; i < len; i++) {
9053			if (tiles[i].complete) {
9054				count++;
9055			}
9056		}
9057		return count / len;
9058	},
9059
9060	// stops loading all tiles in the background layer
9061	_stopLoadingImages: function (container) {
9062		var tiles = Array.prototype.slice.call(container.getElementsByTagName('img')),
9063		    i, len, tile;
9064
9065		for (i = 0, len = tiles.length; i < len; i++) {
9066			tile = tiles[i];
9067
9068			if (!tile.complete) {
9069				tile.onload = L.Util.falseFn;
9070				tile.onerror = L.Util.falseFn;
9071				tile.src = L.Util.emptyImageUrl;
9072
9073				tile.parentNode.removeChild(tile);
9074			}
9075		}
9076	}
9077});
9078
9079
9080/*
9081 * Provides L.Map with convenient shortcuts for using browser geolocation features.
9082 */
9083
9084L.Map.include({
9085	_defaultLocateOptions: {
9086		watch: false,
9087		setView: false,
9088		maxZoom: Infinity,
9089		timeout: 10000,
9090		maximumAge: 0,

9091		enableHighAccuracy: false
9092	},
9093
9094	locate: function (/*Object*/ options) {
9095
9096		options = this._locateOptions = L.extend(this._defaultLocateOptions, options);
9097
9098		if (!navigator.geolocation) {
9099			this._handleGeolocationError({
9100				code: 0,
9101				message: 'Geolocation not supported.'
9102			});
9103			return this;
9104		}
9105
9106		var onResponse = L.bind(this._handleGeolocationResponse, this),
9107			onError = L.bind(this._handleGeolocationError, this);
9108
9109		if (options.watch) {
9110			this._locationWatchId =
9111			        navigator.geolocation.watchPosition(onResponse, onError, options);
9112		} else {
9113			navigator.geolocation.getCurrentPosition(onResponse, onError, options);
9114		}
9115		return this;
9116	},
9117
9118	stopLocate: function () {
9119		if (navigator.geolocation) {
9120			navigator.geolocation.clearWatch(this._locationWatchId);
9121		}
9122		if (this._locateOptions) {
9123			this._locateOptions.setView = false;
9124		}
9125		return this;
9126	},
9127
9128	_handleGeolocationError: function (error) {
9129		var c = error.code,
9130		    message = error.message ||
9131		            (c === 1 ? 'permission denied' :
9132		            (c === 2 ? 'position unavailable' : 'timeout'));
9133
9134		if (this._locateOptions.setView && !this._loaded) {
9135			this.fitWorld();
9136		}
9137
9138		this.fire('locationerror', {
9139			code: c,
9140			message: 'Geolocation error: ' + message + '.'
9141		});
9142	},
9143
9144	_handleGeolocationResponse: function (pos) {
9145		var lat = pos.coords.latitude,
9146		    lng = pos.coords.longitude,
9147		    latlng = new L.LatLng(lat, lng),
9148
9149		    latAccuracy = 180 * pos.coords.accuracy / 40075017,
9150		    lngAccuracy = latAccuracy / Math.cos(L.LatLng.DEG_TO_RAD * lat),
9151
9152		    bounds = L.latLngBounds(
9153		            [lat - latAccuracy, lng - lngAccuracy],
9154		            [lat + latAccuracy, lng + lngAccuracy]),
9155
9156		    options = this._locateOptions;
9157
9158		if (options.setView) {
9159			var zoom = Math.min(this.getBoundsZoom(bounds), options.maxZoom);
9160			this.setView(latlng, zoom);
9161		}
9162
9163		var data = {
9164			latlng: latlng,
9165			bounds: bounds,
9166			timestamp: pos.timestamp
9167		};
9168
9169		for (var i in pos.coords) {
9170			if (typeof pos.coords[i] === 'number') {
9171				data[i] = pos.coords[i];
9172			}
9173		}
9174
9175		this.fire('locationfound', data);
9176	}
9177});
9178
9179
9180}(window, document));