Leaflet/dist/leaflet-src.js

/*
 Copyright (c) 2010-2012, CloudMade, Vladimir Agafonkin
 Leaflet is an open-source JavaScript library for mobile-friendly interactive maps.
 http://leaflet.cloudmade.com
*/
(function (window, undefined) {

var L, originalL;

if (typeof exports !== undefined + '') {
	L = exports;
} else {
	originalL = window.L;
	L = {};

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

	window.L = L;
}

L.version = '0.4.2';


/*
 * L.Util is a namespace for various utility functions.
 */

L.Util = {
	extend: function (/*Object*/ dest) /*-> Object*/ {	// merge src properties into dest
		var sources = Array.prototype.slice.call(arguments, 1);
		for (var j = 0, len = sources.length, src; j < len; j++) {
			src = sources[j] || {};
			for (var i in src) {
				if (src.hasOwnProperty(i)) {
					dest[i] = src[i];
				}
			}
		}
		return dest;
	},

	bind: function (fn, obj) { // (Function, Object) -> Function
		var args = arguments.length > 2 ? Array.prototype.slice.call(arguments, 2) : null;
		return function () {
			return fn.apply(obj, args || arguments);
		};
	},

	stamp: (function () {
		var lastId = 0, key = '_leaflet_id';
		return function (/*Object*/ obj) {
			obj[key] = obj[key] || ++lastId;
			return obj[key];
		};
	}()),

	limitExecByInterval: function (fn, time, context) {
		var lock, execOnUnlock;

		return function wrapperFn() {
			var args = arguments;

			if (lock) {
				execOnUnlock = true;
				return;
			}

			lock = true;

			setTimeout(function () {
				lock = false;

				if (execOnUnlock) {
					wrapperFn.apply(context, args);
					execOnUnlock = false;
				}
			}, time);

			fn.apply(context, args);
		};
	},

	falseFn: function () {
		return false;
	},

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

	splitWords: function (str) {
		return str.replace(/^\s+|\s+$/g, '').split(/\s+/);
	},

	setOptions: function (obj, options) {
		obj.options = L.Util.extend({}, obj.options, options);
		return obj.options;
	},

	getParamString: function (obj) {
		var params = [];
		for (var i in obj) {
			if (obj.hasOwnProperty(i)) {
				params.push(i + '=' + obj[i]);
			}
		}
		return '?' + params.join('&');
	},

	template: function (str, data) {
		return str.replace(/\{ *([\w_]+) *\}/g, function (str, key) {
			var value = data[key];
			if (!data.hasOwnProperty(key)) {
				throw new Error('No value provided for variable ' + str);
			}
			return value;
		});
	},

	emptyImageUrl: 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs='
};

(function () {

	function getPrefixed(name) {
		var i, fn,
			prefixes = ['webkit', 'moz', 'o', 'ms'];

		for (i = 0; i < prefixes.length && !fn; i++) {
			fn = window[prefixes[i] + name];
		}

		return fn;
	}

	function timeoutDefer(fn) {
		return window.setTimeout(fn, 1000 / 60);
	}

	var requestFn = window.requestAnimationFrame ||
			getPrefixed('RequestAnimationFrame') || timeoutDefer;

	var cancelFn = window.cancelAnimationFrame ||
			getPrefixed('CancelAnimationFrame') ||
			getPrefixed('CancelRequestAnimationFrame') ||
			function (id) {
				window.clearTimeout(id);
			};


	L.Util.requestAnimFrame = function (fn, context, immediate, element) {
		fn = L.Util.bind(fn, context);

		if (immediate && requestFn === timeoutDefer) {
			fn();
		} else {
			return requestFn.call(window, fn, element);
		}
	};

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

}());


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

L.Class = function () {};

L.Class.extend = function (/*Object*/ props) /*-> Class*/ {

	// extended class with the new prototype
	var NewClass = function () {
		if (this.initialize) {
			this.initialize.apply(this, arguments);
		}
	};

	// instantiate class without calling constructor
	var F = function () {};
	F.prototype = this.prototype;

	var proto = new F();
	proto.constructor = NewClass;

	NewClass.prototype = proto;

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

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

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

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

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

	return NewClass;
};


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

L.Class.mergeOptions = function (options) {
	L.Util.extend(this.prototype.options, options);
};

/*
 * L.Mixin.Events adds custom events functionality to Leaflet classes
 */

var key = '_leaflet_events';

L.Mixin = {};

L.Mixin.Events = {
	
	addEventListener: function (types, fn, context) { // (String, Function[, Object]) or (Object[, Object])
		var events = this[key] = this[key] || {},
			type, i, len;
		
		// Types can be a map of types/handlers
		if (typeof types === 'object') {
			for (type in types) {
				if (types.hasOwnProperty(type)) {
					this.addEventListener(type, types[type], fn);
				}
			}
			
			return this;
		}
		
		types = L.Util.splitWords(types);
		
		for (i = 0, len = types.length; i < len; i++) {
			events[types[i]] = events[types[i]] || [];
			events[types[i]].push({
				action: fn,
				context: context || this
			});
		}
		
		return this;
	},

	hasEventListeners: function (type) { // (String) -> Boolean
		return (key in this) && (type in this[key]) && (this[key][type].length > 0);
	},

	removeEventListener: function (types, fn, context) { // (String[, Function, Object]) or (Object[, Object])
		var events = this[key],
			type, i, len, listeners, j;
		
		if (typeof types === 'object') {
			for (type in types) {
				if (types.hasOwnProperty(type)) {
					this.removeEventListener(type, types[type], fn);
				}
			}
			
			return this;
		}
		
		types = L.Util.splitWords(types);

		for (i = 0, len = types.length; i < len; i++) {

			if (this.hasEventListeners(types[i])) {
				listeners = events[types[i]];
				
				for (j = listeners.length - 1; j >= 0; j--) {
					if (
						(!fn || listeners[j].action === fn) &&
						(!context || (listeners[j].context === context))
					) {
						listeners.splice(j, 1);
					}
				}
			}
		}
		
		return this;
	},

	fireEvent: function (type, data) { // (String[, Object])
		if (!this.hasEventListeners(type)) {
			return this;
		}

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

		var listeners = this[key][type].slice();

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

		return this;
	}
};

L.Mixin.Events.on = L.Mixin.Events.addEventListener;
L.Mixin.Events.off = L.Mixin.Events.removeEventListener;
L.Mixin.Events.fire = L.Mixin.Events.fireEvent;


(function () {
	var ua = navigator.userAgent.toLowerCase(),
		ie = !!window.ActiveXObject,
		ie6 = ie && !window.XMLHttpRequest,
		webkit = ua.indexOf("webkit") !== -1,
		gecko = ua.indexOf("gecko") !== -1,
		//Terrible browser detection to work around a safari / iOS / android browser bug. See TileLayer._addTile and debug/hacks/jitter.html
		chrome = ua.indexOf("chrome") !== -1,
		opera = window.opera,
		android = ua.indexOf("android") !== -1,
		android23 = ua.search("android [23]") !== -1,
		mobile = typeof orientation !== undefined + '' ? true : false,
		doc = document.documentElement,
		ie3d = ie && ('transition' in doc.style),
		webkit3d = webkit && ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()),
		gecko3d = gecko && ('MozPerspective' in doc.style),
		opera3d = opera && ('OTransition' in doc.style);

	var touch = !window.L_NO_TOUCH && (function () {
		var startName = 'ontouchstart';

		// WebKit, etc
		if (startName in doc) {
			return true;
		}

		// Firefox/Gecko
		var div = document.createElement('div'),
			supported = false;

		if (!div.setAttribute) {
			return false;
		}
		div.setAttribute(startName, 'return;');

		if (typeof div[startName] === 'function') {
			supported = true;
		}

		div.removeAttribute(startName);
		div = null;

		return supported;
	}());

	var retina = (('devicePixelRatio' in window && window.devicePixelRatio > 1) || ('matchMedia' in window && window.matchMedia("(min-resolution:144dpi)").matches));

	L.Browser = {
		ua: ua,
		ie: ie,
		ie6: ie6,
		webkit: webkit,
		gecko: gecko,
		opera: opera,
		android: android,
		android23: android23,

		chrome: chrome,

		ie3d: ie3d,
		webkit3d: webkit3d,
		gecko3d: gecko3d,
		opera3d: opera3d,
		any3d: !window.L_DISABLE_3D && (ie3d || webkit3d || gecko3d || opera3d),

		mobile: mobile,
		mobileWebkit: mobile && webkit,
		mobileWebkit3d: mobile && webkit3d,
		mobileOpera: mobile && opera,

		touch: touch,

		retina: retina
	};
}());


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

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

L.Point.prototype = {
	add: function (point) {
		return this.clone()._add(L.point(point));
	},

	_add: function (point) {
		this.x += point.x;
		this.y += point.y;
		return this;
	},

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

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

	divideBy: function (num, round) {
		return new L.Point(this.x / num, this.y / num, round);
	},

	multiplyBy: function (num, round) {
		return new L.Point(this.x * num, this.y * num, round);
	},

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

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

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

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

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

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

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

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

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

L.point = function (x, y, round) {
	if (x instanceof L.Point) {
		return x;
	}
	if (x instanceof Array) {
		return new L.Point(x[0], x[1]);
	}
	if (isNaN(x)) {
		return x;
	}
	return new L.Point(x, y, round);
};


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

L.Bounds = L.Class.extend({

	initialize: function (a, b) {	//(Point, Point) or Point[]
		if (!a) { return; }

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

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

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

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

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

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

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

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

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

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

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

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

		var min = this.min,
			max = this.max,
			min2 = bounds.min,
			max2 = bounds.max;

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

		return xIntersects && yIntersects;
	}

});

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


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

L.Transformation = L.Class.extend({
	initialize: function (/*Number*/ a, /*Number*/ b, /*Number*/ c, /*Number*/ d) {
		this._a = a;
		this._b = b;
		this._c = c;
		this._d = d;
	},

	transform: function (point, scale) {
		return this._transform(point.clone(), scale);
	},

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

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


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

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

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

	getViewportOffset: function (element) {
		var top = 0,
			left = 0,
			el = element,
			docBody = document.body;

		do {
			top += el.offsetTop || 0;
			left += el.offsetLeft || 0;

			if (el.offsetParent === docBody &&
					L.DomUtil.getStyle(el, 'position') === 'absolute') {
				break;
			}
			if (L.DomUtil.getStyle(el, 'position') === 'fixed') {
				top += docBody.scrollTop || 0;
				left += docBody.scrollLeft || 0;
				break;
			}

			el = el.offsetParent;
		} while (el);

		el = element;

		do {
			if (el === docBody) {
				break;
			}

			top -= el.scrollTop || 0;
			left -= el.scrollLeft || 0;

			el = el.parentNode;
		} while (el);

		return new L.Point(left, top);
	},

	create: function (tagName, className, container) {
		var el = document.createElement(tagName);
		el.className = className;
		if (container) {
			container.appendChild(el);
		}
		return el;
	},

	disableTextSelection: function () {
		if (document.selection && document.selection.empty) {
			document.selection.empty();
		}
		if (!this._onselectstart) {
			this._onselectstart = document.onselectstart;
			document.onselectstart = L.Util.falseFn;
		}
	},

	enableTextSelection: function () {
		document.onselectstart = this._onselectstart;
		this._onselectstart = null;
	},

	hasClass: function (el, name) {
		return (el.className.length > 0) &&
				new RegExp("(^|\\s)" + name + "(\\s|$)").test(el.className);
	},

	addClass: function (el, name) {
		if (!L.DomUtil.hasClass(el, name)) {
			el.className += (el.className ? ' ' : '') + name;
		}
	},

	removeClass: function (el, name) {
		function replaceFn(w, match) {
			if (match === name) {
				return '';
			}
			return w;
		}
		el.className = el.className
				.replace(/(\S+)\s*/g, replaceFn)
				.replace(/(^\s+|\s+$)/, '');
	},

	setOpacity: function (el, value) {

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

		} else if (L.Browser.ie) {

			var filter = false,
				filterName = 'DXImageTransform.Microsoft.Alpha';

			// filters collection throws an error if we try to retrieve a filter that doesn't exist
			try { filter = el.filters.item(filterName); } catch (e) {}

			value = Math.round(value * 100);

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

	testProp: function (props) {
		var style = document.documentElement.style;

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

	getTranslateString: function (point) {
		// On webkit browsers (Chrome/Safari/MobileSafari/Android) using translate3d instead of translate
		// makes animation smoother as it ensures HW accel is used. Firefox 13 doesn't care
		// (same speed either way), Opera 12 doesn't support translate3d

		var is3d = L.Browser.webkit3d,
			open = 'translate' + (is3d ? '3d' : '') + '(',
			close = (is3d ? ',0' : '') + ')';

		return open + point.x + 'px,' + point.y + 'px' + close;
	},

	getScaleString: function (scale, origin) {
		var preTranslateStr = L.DomUtil.getTranslateString(origin),
			scaleStr = ' scale(' + scale + ') ',
			postTranslateStr = L.DomUtil.getTranslateString(origin.multiplyBy(-1));

		return preTranslateStr + scaleStr + postTranslateStr;
	},

	setPosition: function (el, point, disable3D) {
		el._leaflet_pos = point;
		if (!disable3D && L.Browser.any3d) {
			el.style[L.DomUtil.TRANSFORM] =  L.DomUtil.getTranslateString(point);

			// workaround for Android 2/3 stability (https://github.com/CloudMade/Leaflet/issues/69)
			if (L.Browser.mobileWebkit3d) {
				el.style.WebkitBackfaceVisibility = 'hidden';
			}
		} else {
			el.style.left = point.x + 'px';
			el.style.top = point.y + 'px';
		}
	},

	getPosition: function (el) {
		return el._leaflet_pos;
	}
};

L.Util.extend(L.DomUtil, {
	TRANSITION: L.DomUtil.testProp(['transition', 'webkitTransition', 'OTransition', 'MozTransition', 'msTransition']),
	TRANSFORM: L.DomUtil.testProp(['transform', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform'])
});


/*
	CM.LatLng represents a geographical point with latitude and longtitude coordinates.
*/

L.LatLng = function (rawLat, rawLng, noWrap) { // (Number, Number[, Boolean])
	var lat = parseFloat(rawLat),
		lng = parseFloat(rawLng);

	if (isNaN(lat) || isNaN(lng)) {
		throw new Error('Invalid LatLng object: (' + rawLat + ', ' + rawLng + ')');
	}

	if (noWrap !== true) {
		lat = Math.max(Math.min(lat, 90), -90);					// clamp latitude into -90..90
		lng = (lng + 180) % 360 + ((lng < -180 || lng === 180) ? 180 : -180);	// wrap longtitude into -180..180
	}

	this.lat = lat;
	this.lng = lng;
};

L.Util.extend(L.LatLng, {
	DEG_TO_RAD: Math.PI / 180,
	RAD_TO_DEG: 180 / Math.PI,
	MAX_MARGIN: 1.0E-9 // max margin of error for the "equals" check
});

L.LatLng.prototype = {
	equals: function (obj) { // (LatLng) -> Boolean
		if (!obj) { return false; }

		obj = L.latLng(obj);

		var margin = Math.max(Math.abs(this.lat - obj.lat), Math.abs(this.lng - obj.lng));
		return margin <= L.LatLng.MAX_MARGIN;
	},

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

	// Haversine distance formula, see http://en.wikipedia.org/wiki/Haversine_formula
	distanceTo: function (other) { // (LatLng) -> Number
		other = L.latLng(other);

		var R = 6378137, // earth radius in meters
			d2r = L.LatLng.DEG_TO_RAD,
			dLat = (other.lat - this.lat) * d2r,
			dLon = (other.lng - this.lng) * d2r,
			lat1 = this.lat * d2r,
			lat2 = other.lat * d2r,
			sin1 = Math.sin(dLat / 2),
			sin2 = Math.sin(dLon / 2);

		var a = sin1 * sin1 + sin2 * sin2 * Math.cos(lat1) * Math.cos(lat2);

		return R * 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
	}
};

L.latLng = function (a, b, c) { // (LatLng) or ([Number, Number]) or (Number, Number, Boolean)
	if (a instanceof L.LatLng) {
		return a;
	}
	if (a instanceof Array) {
		return new L.LatLng(a[0], a[1]);
	}
	if (isNaN(a)) {
		return a;
	}
	return new L.LatLng(a, b, c);
};
 

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

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

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

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

	// extend the bounds to contain the given point or bounds
	extend: function (obj) { // (LatLng) or (LatLngBounds)
		if (typeof obj[0] === 'number' || obj instanceof L.LatLng) {
			obj = L.latLng(obj);
		} else {
			obj = L.latLngBounds(obj);
		}

		if (obj instanceof L.LatLng) {
			if (!this._southWest && !this._northEast) {
				this._southWest = new L.LatLng(obj.lat, obj.lng, true);
				this._northEast = new L.LatLng(obj.lat, obj.lng, true);
			} else {
				this._southWest.lat = Math.min(obj.lat, this._southWest.lat);
				this._southWest.lng = Math.min(obj.lng, this._southWest.lng);

				this._northEast.lat = Math.max(obj.lat, this._northEast.lat);
				this._northEast.lng = Math.max(obj.lng, this._northEast.lng);
			}
		} else if (obj instanceof L.LatLngBounds) {
			this.extend(obj._southWest);
            this.extend(obj._northEast);
		}
		return this;
	},

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

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

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

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

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

	getNorthWest: function () {
		return new L.LatLng(this._northEast.lat, this._southWest.lng, true);
	},

	getSouthEast: function () {
		return new L.LatLng(this._southWest.lat, this._northEast.lng, true);
	},

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

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

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

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

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

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

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

		return latIntersects && lngIntersects;
	},

	toBBoxString: function () {
		var sw = this._southWest,
			ne = this._northEast;
		return [sw.lng, sw.lat, ne.lng, ne.lat].join(',');
	},

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

		bounds = L.latLngBounds(bounds);

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

//TODO International date line?

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


/*
 * L.Projection contains various geographical projections used by CRS classes.
 */

L.Projection = {};



L.Projection.SphericalMercator = {
	MAX_LATITUDE: 85.0511287798,

	project: function (latlng) { // (LatLng) -> Point
		var d = L.LatLng.DEG_TO_RAD,
			max = this.MAX_LATITUDE,
			lat = Math.max(Math.min(max, latlng.lat), -max),
			x = latlng.lng * d,
			y = lat * d;
		y = Math.log(Math.tan((Math.PI / 4) + (y / 2)));

		return new L.Point(x, y);
	},

	unproject: function (point) { // (Point, Boolean) -> LatLng
		var d = L.LatLng.RAD_TO_DEG,
			lng = point.x * d,
			lat = (2 * Math.atan(Math.exp(point.y)) - (Math.PI / 2)) * d;

		// TODO refactor LatLng wrapping
		return new L.LatLng(lat, lng, true);
	}
};



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

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



L.CRS = {
	latLngToPoint: function (latlng, zoom) { // (LatLng, Number) -> Point
		var projectedPoint = this.projection.project(latlng),
		    scale = this.scale(zoom);

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

	pointToLatLng: function (point, zoom) { // (Point, Number[, Boolean]) -> LatLng
		var scale = this.scale(zoom),
		    untransformedPoint = this.transformation.untransform(point, scale);

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

	project: function (latlng) {
		return this.projection.project(latlng);
	},

	scale: function (zoom) {
		return 256 * Math.pow(2, zoom);
	}
};



L.CRS.EPSG3857 = L.Util.extend({}, L.CRS, {
	code: 'EPSG:3857',

	projection: L.Projection.SphericalMercator,
	transformation: new L.Transformation(0.5 / Math.PI, 0.5, -0.5 / Math.PI, 0.5),

	project: function (latlng) { // (LatLng) -> Point
		var projectedPoint = this.projection.project(latlng),
			earthRadius = 6378137;
		return projectedPoint.multiplyBy(earthRadius);
	}
});

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



L.CRS.EPSG4326 = L.Util.extend({}, L.CRS, {
	code: 'EPSG:4326',

	projection: L.Projection.LonLat,
	transformation: new L.Transformation(1 / 360, 0.5, -1 / 360, 0.5)
});


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

L.Map = L.Class.extend({

	includes: L.Mixin.Events,

	options: {
		crs: L.CRS.EPSG3857,

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

		fadeAnimation: L.DomUtil.TRANSITION && !L.Browser.android23,
		trackResize: true,
		markerZoomAnimation: L.DomUtil.TRANSITION && L.Browser.any3d
	},

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

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

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

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

		this._initLayers(options.layers);
	},


	// public methods that modify map state

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

	setZoom: function (zoom) { // (Number)
		return this.setView(this.getCenter(), zoom);
	},

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

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

	fitBounds: function (bounds) { // (LatLngBounds)
		var zoom = this.getBoundsZoom(bounds);
		return this.setView(L.latLngBounds(bounds).getCenter(), zoom);
	},

	fitWorld: function () {
		var sw = new L.LatLng(-60, -170),
		    ne = new L.LatLng(85, 179);

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

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

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

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

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

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

		this.options.maxBounds = bounds;

		if (!bounds) {
			this._boundsMinZoom = null;
			return this;
		}

		var minZoom = this.getBoundsZoom(bounds, true);

		this._boundsMinZoom = minZoom;

		if (this._loaded) {
			if (this._zoom < minZoom) {
				this.setView(bounds.getCenter(), minZoom);
			} else {
				this.panInsideBounds(bounds);
			}
		}

		return this;
	},

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

		var viewBounds = this.getBounds(),
		    viewSw = this.project(viewBounds.getSouthWest()),
		    viewNe = this.project(viewBounds.getNorthEast()),
		    sw = this.project(bounds.getSouthWest()),
		    ne = this.project(bounds.getNorthEast()),
		    dx = 0,
		    dy = 0;

		if (viewNe.y < ne.y) { // north
			dy = ne.y - viewNe.y;
		}
		if (viewNe.x > ne.x) { // east
			dx = ne.x - viewNe.x;
		}
		if (viewSw.y > sw.y) { // south
			dy = sw.y - viewSw.y;
		}
		if (viewSw.x < sw.x) { // west
			dx = sw.x - viewSw.x;
		}

		return this.panBy(new L.Point(dx, dy, true));
	},

	addLayer: function (layer) {
		// TODO method is too big, refactor

		var id = L.Util.stamp(layer);

		if (this._layers[id]) { return this; }

		this._layers[id] = layer;

		// TODO getMaxZoom, getMinZoom in ILayer (instead of options)
		if (layer.options && !isNaN(layer.options.maxZoom)) {
			this._layersMaxZoom = Math.max(this._layersMaxZoom || 0, layer.options.maxZoom);
		}
		if (layer.options && !isNaN(layer.options.minZoom)) {
			this._layersMinZoom = Math.min(this._layersMinZoom || Infinity, layer.options.minZoom);
		}

		// TODO looks ugly, refactor!!!
		if (this.options.zoomAnimation && L.TileLayer && (layer instanceof L.TileLayer)) {
			this._tileLayersNum++;
            this._tileLayersToLoad++;
            layer.on('load', this._onTileLayerLoad, this);
		}

		var onMapLoad = function () {
			layer.onAdd(this);
			this.fire('layeradd', {layer: layer});
		};

		if (this._loaded) {
			onMapLoad.call(this);
		} else {
			this.on('load', onMapLoad, this);
		}

		return this;
	},

	removeLayer: function (layer) {
		var id = L.Util.stamp(layer);

		if (!this._layers[id]) { return; }

		layer.onRemove(this);

		delete this._layers[id];

		// TODO looks ugly, refactor
		if (this.options.zoomAnimation && L.TileLayer && (layer instanceof L.TileLayer)) {
			this._tileLayersNum--;
            this._tileLayersToLoad--;
            layer.off('load', this._onTileLayerLoad, this);
		}

		return this.fire('layerremove', {layer: layer});
	},

	hasLayer: function (layer) {
		var id = L.Util.stamp(layer);
		return this._layers.hasOwnProperty(id);
	},

	invalidateSize: function (animate) {
		var oldSize = this.getSize();

		this._sizeChanged = true;

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

		if (!this._loaded) { return this; }

		var offset = oldSize.subtract(this.getSize()).divideBy(2, true);
		if (animate) {
			this.panBy(offset);
		} else {
			this._rawPanBy(offset);

			this.fire('move');

			clearTimeout(this._sizeTimer);
			this._sizeTimer = setTimeout(L.Util.bind(this.fire, this, 'moveend'), 200);
		}
		return this;
	},

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

		this[name] = new HandlerClass(this);

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

		return this;
	},


	// public methods for getting map state

	getCenter: function () { // (Boolean) -> LatLng
		return this.layerPointToLatLng(this._getCenterLayerPoint());
	},

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

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

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

	getMinZoom: function () {
		var z1 = this.options.minZoom || 0,
		    z2 = this._layersMinZoom || 0,
		    z3 = this._boundsMinZoom || 0;

		return Math.max(z1, z2, z3);
	},

	getMaxZoom: function () {
		var z1 = this.options.maxZoom === undefined ? Infinity : this.options.maxZoom,
		    z2 = this._layersMaxZoom  === undefined ? Infinity : this._layersMaxZoom;

		return Math.min(z1, z2);
	},

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

		var size = this.getSize(),
		    zoom = this.options.minZoom || 0,
		    maxZoom = this.getMaxZoom(),
		    ne = bounds.getNorthEast(),
		    sw = bounds.getSouthWest(),
		    boundsSize,
		    nePoint,
		    swPoint,
		    zoomNotFound = true;

		if (inside) {
			zoom--;
		}

		do {
			zoom++;
			nePoint = this.project(ne, zoom);
			swPoint = this.project(sw, zoom);
			boundsSize = new L.Point(Math.abs(nePoint.x - swPoint.x), Math.abs(swPoint.y - nePoint.y));

			if (!inside) {
				zoomNotFound = boundsSize.x <= size.x && boundsSize.y <= size.y;
			} else {
				zoomNotFound = boundsSize.x < size.x || boundsSize.y < size.y;
			}
		} while (zoomNotFound && zoom <= maxZoom);

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

		return inside ? zoom : zoom - 1;
	},

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

			this._sizeChanged = false;
		}
		return this._size;
	},

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

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

	getPanes: function () {
		return this._panes;
	},

	getContainer: function () {
		return this._container;
	},


	// TODO replace with universal implementation after refactoring projections

	getZoomScale: function (toZoom) {
		var crs = this.options.crs;
		return crs.scale(toZoom) / crs.scale(this._zoom);
	},

	getScaleZoom: function (scale) {
		return this._zoom + (Math.log(scale) / Math.LN2);
	},


	// conversion methods

	project: function (latlng, zoom) { // (LatLng[, Number]) -> Point
		zoom = zoom === undefined ? this._zoom : zoom;
		return this.options.crs.latLngToPoint(L.latLng(latlng), zoom);
	},

	unproject: function (point, zoom) { // (Point[, Number]) -> LatLng
		zoom = zoom === undefined ? this._zoom : zoom;
		return this.options.crs.pointToLatLng(L.point(point), zoom);
	},

	layerPointToLatLng: function (point) { // (Point)
		var projectedPoint = L.point(point).add(this._initialTopLeftPoint);
		return this.unproject(projectedPoint);
	},

	latLngToLayerPoint: function (latlng) { // (LatLng)
		var projectedPoint = this.project(L.latLng(latlng))._round();
		return projectedPoint._subtract(this._initialTopLeftPoint);
	},

	containerPointToLayerPoint: function (point) { // (Point)
		return L.point(point).subtract(this._getMapPanePos());
	},

	layerPointToContainerPoint: function (point) { // (Point)
		return L.point(point).add(this._getMapPanePos());
	},

	containerPointToLatLng: function (point) {
		var layerPoint = this.containerPointToLayerPoint(L.point(point));
		return this.layerPointToLatLng(layerPoint);
	},

	latLngToContainerPoint: function (latlng) {
		return this.layerPointToContainerPoint(this.latLngToLayerPoint(L.latLng(latlng)));
	},

	mouseEventToContainerPoint: function (e) { // (MouseEvent)
		return L.DomEvent.getMousePosition(e, this._container);
	},

	mouseEventToLayerPoint: function (e) { // (MouseEvent)
		return this.containerPointToLayerPoint(this.mouseEventToContainerPoint(e));
	},

	mouseEventToLatLng: function (e) { // (MouseEvent)
		return this.layerPointToLatLng(this.mouseEventToLayerPoint(e));
	},


	// map initialization methods

	_initContainer: function (id) {
		var container = this._container = L.DomUtil.get(id);

		if (container._leaflet) {
			throw new Error("Map container is already initialized.");
		}

		container._leaflet = true;
	},

	_initLayout: function () {
		var container = this._container;

		container.innerHTML = '';
		L.DomUtil.addClass(container, 'leaflet-container');

		if (L.Browser.touch) {
			L.DomUtil.addClass(container, 'leaflet-touch');
		}

		if (this.options.fadeAnimation) {
			L.DomUtil.addClass(container, 'leaflet-fade-anim');
		}

		var position = L.DomUtil.getStyle(container, 'position');

		if (position !== 'absolute' && position !== 'relative' && position !== 'fixed') {
			container.style.position = 'relative';
		}

		this._initPanes();

		if (this._initControlPos) {
			this._initControlPos();
		}
	},

	_initPanes: function () {
		var panes = this._panes = {};

		this._mapPane = panes.mapPane = this._createPane('leaflet-map-pane', this._container);

		this._tilePane = panes.tilePane = this._createPane('leaflet-tile-pane', this._mapPane);
		this._objectsPane = panes.objectsPane = this._createPane('leaflet-objects-pane', this._mapPane);

		panes.shadowPane = this._createPane('leaflet-shadow-pane');
		panes.overlayPane = this._createPane('leaflet-overlay-pane');
		panes.markerPane = this._createPane('leaflet-marker-pane');
		panes.popupPane = this._createPane('leaflet-popup-pane');

		var zoomHide = ' leaflet-zoom-hide';

		if (!this.options.markerZoomAnimation) {
			L.DomUtil.addClass(panes.markerPane, zoomHide);
			L.DomUtil.addClass(panes.shadowPane, zoomHide);
			L.DomUtil.addClass(panes.popupPane, zoomHide);
		}
	},

	_createPane: function (className, container) {
		return L.DomUtil.create('div', className, container || this._objectsPane);
	},

	_initializers: [],

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

	_initLayers: function (layers) {
		layers = layers ? (layers instanceof Array ? layers : [layers]) : [];

		this._layers = {};
		this._tileLayersNum = 0;

		var i, len;

		for (i = 0, len = layers.length; i < len; i++) {
			this.addLayer(layers[i]);
		}
	},


	// private methods that modify map state

	_resetView: function (center, zoom, preserveMapOffset, afterZoomAnim) {

		var zoomChanged = (this._zoom !== zoom);

		if (!afterZoomAnim) {
			this.fire('movestart');

			if (zoomChanged) {
				this.fire('zoomstart');
			}
		}

		this._zoom = zoom;

		this._initialTopLeftPoint = this._getNewTopLeftPoint(center);

		if (!preserveMapOffset) {
			L.DomUtil.setPosition(this._mapPane, new L.Point(0, 0));
		} else {
			this._initialTopLeftPoint._add(this._getMapPanePos());
		}

		this._tileLayersToLoad = this._tileLayersNum;

		this.fire('viewreset', {hard: !preserveMapOffset});

		this.fire('move');

		if (zoomChanged || afterZoomAnim) {
			this.fire('zoomend');
		}

		this.fire('moveend', {hard: !preserveMapOffset});

		if (!this._loaded) {
			this._loaded = true;
			this.fire('load');
		}
	},

	_rawPanBy: function (offset) {
		L.DomUtil.setPosition(this._mapPane, this._getMapPanePos().subtract(offset));
	},


	// map events

	_initEvents: function () {
		if (!L.DomEvent) { return; }

		L.DomEvent.on(this._container, 'click', this._onMouseClick, this);

		var events = ['dblclick', 'mousedown', 'mouseup', 'mouseenter', 'mouseleave', 'mousemove', 'contextmenu'],
			i, len;

		for (i = 0, len = events.length; i < len; i++) {
			L.DomEvent.on(this._container, events[i], this._fireMouseEvent, this);
		}

		if (this.options.trackResize) {
			L.DomEvent.on(window, 'resize', this._onResize, this);
		}
	},

	_onResize: function () {
		L.Util.cancelAnimFrame(this._resizeRequest);
		this._resizeRequest = L.Util.requestAnimFrame(this.invalidateSize, this, false, this._container);
	},

	_onMouseClick: function (e) {
		if (!this._loaded || (this.dragging && this.dragging.moved())) { return; }

		this.fire('preclick');
		this._fireMouseEvent(e);
	},

	_fireMouseEvent: function (e) {
		if (!this._loaded) { return; }

		var type = e.type;

		type = (type === 'mouseenter' ? 'mouseover' : (type === 'mouseleave' ? 'mouseout' : type));

		if (!this.hasEventListeners(type)) { return; }

		if (type === 'contextmenu') {
			L.DomEvent.preventDefault(e);
		}

		var containerPoint = this.mouseEventToContainerPoint(e),
			layerPoint = this.containerPointToLayerPoint(containerPoint),
			latlng = this.layerPointToLatLng(layerPoint);

		this.fire(type, {
			latlng: latlng,
			layerPoint: layerPoint,
			containerPoint: containerPoint,
			originalEvent: e
		});
	},

	_onTileLayerLoad: function () {
		// TODO super-ugly, refactor!!!
		// clear scaled tiles after all new tiles are loaded (for performance)
		this._tileLayersToLoad--;
		if (this._tileLayersNum && !this._tileLayersToLoad && this._tileBg) {
			clearTimeout(this._clearTileBgTimer);
			this._clearTileBgTimer = setTimeout(L.Util.bind(this._clearTileBg, this), 500);
		}
	},


	// private methods for getting map state

	_getMapPanePos: function () {
		return L.DomUtil.getPosition(this._mapPane);
	},

	_getTopLeftPoint: function () {
		if (!this._loaded) {
			throw new Error('Set map center and zoom first.');
		}

		return this._initialTopLeftPoint.subtract(this._getMapPanePos());
	},

	_getNewTopLeftPoint: function (center, zoom) {
		var viewHalf = this.getSize().divideBy(2);
		// TODO round on display, not calculation to increase precision?
		return this.project(center, zoom)._subtract(viewHalf)._round();
	},

	_latLngToNewLayerPoint: function (latlng, newZoom, newCenter) {
		var topLeft = this._getNewTopLeftPoint(newCenter, newZoom).add(this._getMapPanePos());
		return this.project(latlng, newZoom)._subtract(topLeft);
	},

	_getCenterLayerPoint: function () {
		return this.containerPointToLayerPoint(this.getSize().divideBy(2));
	},

	_getCenterOffset: function (center) {
		return this.latLngToLayerPoint(center).subtract(this._getCenterLayerPoint());
	},

	_limitZoom: function (zoom) {
		var min = this.getMinZoom(),
			max = this.getMaxZoom();

		return Math.max(min, Math.min(max, zoom));
	}
});

L.Map.addInitHook = function (fn) {
	var args = Array.prototype.slice.call(arguments, 1);

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

	this.prototype._initializers.push(init);
};

L.map = function (id, options) {
	return new L.Map(id, options);
};



L.Projection.Mercator = {
	MAX_LATITUDE: 85.0840591556,

	R_MINOR: 6356752.3142,
	R_MAJOR: 6378137,

	project: function (latlng) { // (LatLng) -> Point
		var d = L.LatLng.DEG_TO_RAD,
			max = this.MAX_LATITUDE,
			lat = Math.max(Math.min(max, latlng.lat), -max),
			r = this.R_MAJOR,
			r2 = this.R_MINOR,
			x = latlng.lng * d * r,
			y = lat * d,
			tmp = r2 / r,
			eccent = Math.sqrt(1.0 - tmp * tmp),
			con = eccent * Math.sin(y);

		con = Math.pow((1 - con) / (1 + con), eccent * 0.5);

		var ts = Math.tan(0.5 * ((Math.PI * 0.5) - y)) / con;
		y = -r2 * Math.log(ts);

		return new L.Point(x, y);
	},

	unproject: function (point) { // (Point, Boolean) -> LatLng
		var d = L.LatLng.RAD_TO_DEG,
			r = this.R_MAJOR,
			r2 = this.R_MINOR,
			lng = point.x * d / r,
			tmp = r2 / r,
			eccent = Math.sqrt(1 - (tmp * tmp)),
			ts = Math.exp(- point.y / r2),
			phi = (Math.PI / 2) - 2 * Math.atan(ts),
			numIter = 15,
			tol = 1e-7,
			i = numIter,
			dphi = 0.1,
			con;

		while ((Math.abs(dphi) > tol) && (--i > 0)) {
			con = eccent * Math.sin(phi);
			dphi = (Math.PI / 2) - 2 * Math.atan(ts * Math.pow((1.0 - con) / (1.0 + con), 0.5 * eccent)) - phi;
			phi += dphi;
		}

		return new L.LatLng(phi * d, lng, true);
	}
};



L.CRS.EPSG3395 = L.Util.extend({}, L.CRS, {
	code: 'EPSG:3395',

	projection: L.Projection.Mercator,

	transformation: (function () {
		var m = L.Projection.Mercator,
			r = m.R_MAJOR,
			r2 = m.R_MINOR;

		return new L.Transformation(0.5 / (Math.PI * r), 0.5, -0.5 / (Math.PI * r2), 0.5);
	}())
});


/*
 * L.TileLayer is used for standard xyz-numbered tile layers.
 */

L.TileLayer = L.Class.extend({
	includes: L.Mixin.Events,

	options: {
		minZoom: 0,
		maxZoom: 18,
		tileSize: 256,
		subdomains: 'abc',
		errorTileUrl: '',
		attribution: '',
		zoomOffset: 0,
		opacity: 1,
		/* (undefined works too)
		zIndex: null,
		tms: false,
		continuousWorld: false,
		noWrap: false,
		zoomReverse: false,
		detectRetina: false,
		reuseTiles: false,
		*/
		unloadInvisibleTiles: L.Browser.mobile,
		updateWhenIdle: L.Browser.mobile
	},

	initialize: function (url, options) {
		options = L.Util.setOptions(this, options);

		// detecting retina displays, adjusting tileSize and zoom levels
		if (options.detectRetina && L.Browser.retina && options.maxZoom > 0) {

			options.tileSize = Math.floor(options.tileSize / 2);
			options.zoomOffset++;

			if (options.minZoom > 0) {
				options.minZoom--;
			}
			this.options.maxZoom--;
		}

		this._url = url;

		var subdomains = this.options.subdomains;

		if (typeof subdomains === 'string') {
			this.options.subdomains = subdomains.split('');
		}
	},

	onAdd: function (map) {
		this._map = map;

		// create a container div for tiles
		this._initContainer();

		// create an image to clone for tiles
		this._createTileProto();

		// set up events
		map.on({
			'viewreset': this._resetCallback,
			'moveend': this._update
		}, this);

		if (!this.options.updateWhenIdle) {
			this._limitedUpdate = L.Util.limitExecByInterval(this._update, 150, this);
			map.on('move', this._limitedUpdate, this);
		}

		this._reset();
		this._update();
	},

	addTo: function (map) {
		map.addLayer(this);
		return this;
	},

	onRemove: function (map) {
		map._panes.tilePane.removeChild(this._container);

		map.off({
			'viewreset': this._resetCallback,
			'moveend': this._update
		}, this);

		if (!this.options.updateWhenIdle) {
			map.off('move', this._limitedUpdate, this);
		}

		this._container = null;
		this._map = null;
	},

	bringToFront: function () {
		var pane = this._map._panes.tilePane;

		if (this._container) {
			pane.appendChild(this._container);
			this._setAutoZIndex(pane, Math.max);
		}

		return this;
	},

	bringToBack: function () {
		var pane = this._map._panes.tilePane;

		if (this._container) {
			pane.insertBefore(this._container, pane.firstChild);
			this._setAutoZIndex(pane, Math.min);
		}

		return this;
	},

	getAttribution: function () {
		return this.options.attribution;
	},

	setOpacity: function (opacity) {
		this.options.opacity = opacity;

		if (this._map) {
			this._updateOpacity();
		}

		return this;
	},

	setZIndex: function (zIndex) {
		this.options.zIndex = zIndex;
		this._updateZIndex();

		return this;
	},

	setUrl: function (url, noRedraw) {
		this._url = url;

		if (!noRedraw) {
			this.redraw();
		}

		return this;
	},

	redraw: function () {
		if (this._map) {
			this._map._panes.tilePane.empty = false;
			this._reset(true);
			this._update();
		}
		return this;
	},

	_updateZIndex: function () {
		if (this._container && this.options.zIndex !== undefined) {
			this._container.style.zIndex = this.options.zIndex;
		}
	},

	_setAutoZIndex: function (pane, compare) {

		var layers = pane.getElementsByClassName('leaflet-layer'),
			edgeZIndex = -compare(Infinity, -Infinity), // -Ifinity for max, Infinity for min
			zIndex;

		for (var i = 0, len = layers.length; i < len; i++) {

			if (layers[i] !== this._container) {
				zIndex = parseInt(layers[i].style.zIndex, 10);

				if (!isNaN(zIndex)) {
					edgeZIndex = compare(edgeZIndex, zIndex);
				}
			}
		}

		this._container.style.zIndex = isFinite(edgeZIndex) ? edgeZIndex + compare(1, -1) : '';
	},

	_updateOpacity: function () {
		L.DomUtil.setOpacity(this._container, this.options.opacity);

		// stupid webkit hack to force redrawing of tiles
		var i,
			tiles = this._tiles;

		if (L.Browser.webkit) {
			for (i in tiles) {
				if (tiles.hasOwnProperty(i)) {
					tiles[i].style.webkitTransform += ' translate(0,0)';
				}
			}
		}
	},

	_initContainer: function () {
		var tilePane = this._map._panes.tilePane;

		if (!this._container || tilePane.empty) {
			this._container = L.DomUtil.create('div', 'leaflet-layer');

			this._updateZIndex();

			tilePane.appendChild(this._container);

			if (this.options.opacity < 1) {
				this._updateOpacity();
			}
		}
	},

	_resetCallback: function (e) {
		this._reset(e.hard);
	},

	_reset: function (clearOldContainer) {
		var key,
			tiles = this._tiles;

		for (key in tiles) {
			if (tiles.hasOwnProperty(key)) {
				this.fire('tileunload', {tile: tiles[key]});
			}
		}

		this._tiles = {};
		this._tilesToLoad = 0;

		if (this.options.reuseTiles) {
			this._unusedTiles = [];
		}

		if (clearOldContainer && this._container) {
			this._container.innerHTML = "";
		}

		this._initContainer();
	},

	_update: function (e) {
		if (this._map._panTransition && this._map._panTransition._inProgress) { return; }

		var bounds   = this._map.getPixelBounds(),
		    zoom     = this._map.getZoom(),
		    tileSize = this.options.tileSize;

		if (zoom > this.options.maxZoom || zoom < this.options.minZoom) {
			return;
		}

		var nwTilePoint = new L.Point(
				Math.floor(bounds.min.x / tileSize),
				Math.floor(bounds.min.y / tileSize)),
			seTilePoint = new L.Point(
				Math.floor(bounds.max.x / tileSize),
				Math.floor(bounds.max.y / tileSize)),
			tileBounds = new L.Bounds(nwTilePoint, seTilePoint);

		this._addTilesFromCenterOut(tileBounds);

		if (this.options.unloadInvisibleTiles || this.options.reuseTiles) {
			this._removeOtherTiles(tileBounds);
		}
	},

	_addTilesFromCenterOut: function (bounds) {
		var queue = [],
			center = bounds.getCenter();

		var j, i, point;

		for (j = bounds.min.y; j <= bounds.max.y; j++) {
			for (i = bounds.min.x; i <= bounds.max.x; i++) {
				point = new L.Point(i, j);

				if (this._tileShouldBeLoaded(point)) {
					queue.push(point);
				}
			}
		}

		var tilesToLoad = queue.length;

		if (tilesToLoad === 0) { return; }

		// load tiles in order of their distance to center
		queue.sort(function (a, b) {
			return a.distanceTo(center) - b.distanceTo(center);
		});

		var fragment = document.createDocumentFragment();

		// if its the first batch of tiles to load
		if (!this._tilesToLoad) {
			this.fire('loading');
		}

		this._tilesToLoad += tilesToLoad;

		for (i = 0; i < tilesToLoad; i++) {
			this._addTile(queue[i], fragment);
		}

		this._container.appendChild(fragment);
	},

	_tileShouldBeLoaded: function (tilePoint) {
		if ((tilePoint.x + ':' + tilePoint.y) in this._tiles) {
			return false; // already loaded
		}

		if (!this.options.continuousWorld) {
			var limit = this._getWrapTileNum();

			if (this.options.noWrap && (tilePoint.x < 0 || tilePoint.x >= limit) ||
				                        tilePoint.y < 0 || tilePoint.y >= limit) {
				return false; // exceeds world bounds
			}
		}

		return true;
	},

	_removeOtherTiles: function (bounds) {
		var kArr, x, y, key;

		for (key in this._tiles) {
			if (this._tiles.hasOwnProperty(key)) {
				kArr = key.split(':');
				x = parseInt(kArr[0], 10);
				y = parseInt(kArr[1], 10);

				// remove tile if it's out of bounds
				if (x < bounds.min.x || x > bounds.max.x || y < bounds.min.y || y > bounds.max.y) {
					this._removeTile(key);
				}
			}
		}
	},

	_removeTile: function (key) {
		var tile = this._tiles[key];

		this.fire("tileunload", {tile: tile, url: tile.src});

		if (this.options.reuseTiles) {
			L.DomUtil.removeClass(tile, 'leaflet-tile-loaded');
			this._unusedTiles.push(tile);
		} else if (tile.parentNode === this._container) {
			this._container.removeChild(tile);
		}

		if (!L.Browser.android) { //For https://github.com/CloudMade/Leaflet/issues/137
			tile.src = L.Util.emptyImageUrl;
		}

		delete this._tiles[key];
	},

	_addTile: function (tilePoint, container) {
		var tilePos = this._getTilePos(tilePoint);

		// get unused tile - or create a new tile
		var tile = this._getTile();

		// Chrome 20 layouts much faster with top/left (Verify with timeline, frames), Safari 5.1.7, iOS 5.1.1,
		// android browser (4.0) have display issues with top/left and requires transform instead
		// (other browsers don't currently care) - see debug/hacks/jitter.html for an example
		L.DomUtil.setPosition(tile, tilePos, L.Browser.chrome);

		this._tiles[tilePoint.x + ':' + tilePoint.y] = tile;

		this._loadTile(tile, tilePoint);

		if (tile.parentNode !== this._container) {
			container.appendChild(tile);
		}
	},

	_getZoomForUrl: function () {

		var options = this.options,
			zoom = this._map.getZoom();

		if (options.zoomReverse) {
			zoom = options.maxZoom - zoom;
		}

		return zoom + options.zoomOffset;
	},

	_getTilePos: function (tilePoint) {
		var origin = this._map.getPixelOrigin(),
			tileSize = this.options.tileSize;

		return tilePoint.multiplyBy(tileSize).subtract(origin);
	},

	// image-specific code (override to implement e.g. Canvas or SVG tile layer)

	getTileUrl: function (tilePoint) {
		this._adjustTilePoint(tilePoint);

		return L.Util.template(this._url, L.Util.extend({
			s: this._getSubdomain(tilePoint),
			z: this._getZoomForUrl(),
			x: tilePoint.x,
			y: tilePoint.y
		}, this.options));
	},

	_getWrapTileNum: function () {
		// TODO refactor, limit is not valid for non-standard projections
		return Math.pow(2, this._getZoomForUrl());
	},

	_adjustTilePoint: function (tilePoint) {

		var limit = this._getWrapTileNum();

		// wrap tile coordinates
		if (!this.options.continuousWorld && !this.options.noWrap) {
			tilePoint.x = ((tilePoint.x % limit) + limit) % limit;
		}

		if (this.options.tms) {
			tilePoint.y = limit - tilePoint.y - 1;
		}
	},

	_getSubdomain: function (tilePoint) {
		var index = (tilePoint.x + tilePoint.y) % this.options.subdomains.length;
		return this.options.subdomains[index];
	},

	_createTileProto: function () {
		var img = this._tileImg = L.DomUtil.create('img', 'leaflet-tile');
		img.galleryimg = 'no';

		var tileSize = this.options.tileSize;
		img.style.width = tileSize + 'px';
		img.style.height = tileSize + 'px';
	},

	_getTile: function () {
		if (this.options.reuseTiles && this._unusedTiles.length > 0) {
			var tile = this._unusedTiles.pop();
			this._resetTile(tile);
			return tile;
		}
		return this._createTile();
	},

	_resetTile: function (tile) {
		// Override if data stored on a tile needs to be cleaned up before reuse
	},

	_createTile: function () {
		var tile = this._tileImg.cloneNode(false);
		tile.onselectstart = tile.onmousemove = L.Util.falseFn;
		return tile;
	},

	_loadTile: function (tile, tilePoint) {
		tile._layer  = this;
		tile.onload  = this._tileOnLoad;
		tile.onerror = this._tileOnError;

		tile.src     = this.getTileUrl(tilePoint);
	},

    _tileLoaded: function () {
        this._tilesToLoad--;
        if (!this._tilesToLoad) {
            this.fire('load');
        }
    },

	_tileOnLoad: function (e) {
		var layer = this._layer;

		//Only if we are loading an actual image
		if (this.src !== L.Util.emptyImageUrl) {
			L.DomUtil.addClass(this, 'leaflet-tile-loaded');

			layer.fire('tileload', {
				tile: this,
				url: this.src
			});
		}

		layer._tileLoaded();
	},

	_tileOnError: function (e) {
		var layer = this._layer;

		layer.fire('tileerror', {
			tile: this,
			url: this.src
		});

		var newUrl = layer.options.errorTileUrl;
		if (newUrl) {
			this.src = newUrl;
		}

        layer._tileLoaded();
    }
});

L.tileLayer = function (url, options) {
	return new L.TileLayer(url, options);
};


L.TileLayer.WMS = L.TileLayer.extend({

	defaultWmsParams: {
		service: 'WMS',
		request: 'GetMap',
		version: '1.1.1',
		layers: '',
		styles: '',
		format: 'image/jpeg',
		transparent: false
	},

	initialize: function (url, options) { // (String, Object)

		this._url = url;

		var wmsParams = L.Util.extend({}, this.defaultWmsParams);

		if (options.detectRetina && L.Browser.retina) {
			wmsParams.width = wmsParams.height = this.options.tileSize * 2;
		} else {
			wmsParams.width = wmsParams.height = this.options.tileSize;
		}

		for (var i in options) {
			// all keys that are not TileLayer options go to WMS params
			if (!this.options.hasOwnProperty(i)) {
				wmsParams[i] = options[i];
			}
		}

		this.wmsParams = wmsParams;

		L.Util.setOptions(this, options);
	},

	onAdd: function (map) {

		var projectionKey = parseFloat(this.wmsParams.version) >= 1.3 ? 'crs' : 'srs';
		this.wmsParams[projectionKey] = map.options.crs.code;

		L.TileLayer.prototype.onAdd.call(this, map);
	},

	getTileUrl: function (tilePoint, zoom) { // (Point, Number) -> String

		var map = this._map,
			crs = map.options.crs,
			tileSize = this.options.tileSize,

			nwPoint = tilePoint.multiplyBy(tileSize),
			sePoint = nwPoint.add(new L.Point(tileSize, tileSize)),

			nw = crs.project(map.unproject(nwPoint, zoom)),
			se = crs.project(map.unproject(sePoint, zoom)),

			bbox = [nw.x, se.y, se.x, nw.y].join(','),

			url = L.Util.template(this._url, {s: this._getSubdomain(tilePoint)});

		return url + L.Util.getParamString(this.wmsParams) + "&bbox=" + bbox;
	},

	setParams: function (params, noRedraw) {

		L.Util.extend(this.wmsParams, params);

		if (!noRedraw) {
			this.redraw();
		}

		return this;
	}
});

L.tileLayer.wms = function (url, options) {
	return new L.TileLayer.WMS(url, options);
};


L.TileLayer.Canvas = L.TileLayer.extend({
	options: {
		async: false
	},

	initialize: function (options) {
		L.Util.setOptions(this, options);
	},

	redraw: function () {
		var i,
			tiles = this._tiles;

		for (i in tiles) {
			if (tiles.hasOwnProperty(i)) {
				this._redrawTile(tiles[i]);
			}
		}
	},

	_redrawTile: function (tile) {
		this.drawTile(tile, tile._tilePoint, tile._zoom);
	},

	_createTileProto: function () {
		var proto = this._canvasProto = L.DomUtil.create('canvas', 'leaflet-tile');

		var tileSize = this.options.tileSize;
		proto.width = tileSize;
		proto.height = tileSize;
	},

	_createTile: function () {
		var tile = this._canvasProto.cloneNode(false);
		tile.onselectstart = tile.onmousemove = L.Util.falseFn;
		return tile;
	},

	_loadTile: function (tile, tilePoint, zoom) {
		tile._layer = this;
		tile._tilePoint = tilePoint;
		tile._zoom = zoom;

		this.drawTile(tile, tilePoint, zoom);

		if (!this.options.async) {
			this.tileDrawn(tile);
		}
	},

	drawTile: function (tile, tilePoint, zoom) {
		// override with rendering code
	},

	tileDrawn: function (tile) {
		this._tileOnLoad.call(tile);
	}
});


L.tileLayer.canvas = function (options) {
	return new L.TileLayer.Canvas(options);
};

L.ImageOverlay = L.Class.extend({
	includes: L.Mixin.Events,

	options: {
		opacity: 1
	},

	initialize: function (url, bounds, options) { // (String, LatLngBounds, Object)
		this._url = url;
		this._bounds = L.latLngBounds(bounds);

		L.Util.setOptions(this, options);
	},

	onAdd: function (map) {
		this._map = map;

		if (!this._image) {
			this._initImage();
		}

		map._panes.overlayPane.appendChild(this._image);

		map.on('viewreset', this._reset, this);

		if (map.options.zoomAnimation && L.Browser.any3d) {
			map.on('zoomanim', this._animateZoom, this);
		}

		this._reset();
	},

	onRemove: function (map) {
		map.getPanes().overlayPane.removeChild(this._image);

		map.off('viewreset', this._reset, this);

		if (map.options.zoomAnimation) {
			map.off('zoomanim', this._animateZoom, this);
		}
	},

	addTo: function (map) {
		map.addLayer(this);
		return this;
	},

	setOpacity: function (opacity) {
		this.options.opacity = opacity;
		this._updateOpacity();
		return this;
	},

	// TODO remove bringToFront/bringToBack duplication from TileLayer/Path
	bringToFront: function () {
		if (this._image) {
			this._map._panes.overlayPane.appendChild(this._image);
		}
		return this;
	},

	bringToBack: function () {
		var pane = this._map._panes.overlayPane;
		if (this._image) {
			pane.insertBefore(this._image, pane.firstChild);
		}
		return this;
	},

	_initImage: function () {
		this._image = L.DomUtil.create('img', 'leaflet-image-layer');

		if (this._map.options.zoomAnimation && L.Browser.any3d) {
			L.DomUtil.addClass(this._image, 'leaflet-zoom-animated');
		} else {
			L.DomUtil.addClass(this._image, 'leaflet-zoom-hide');
		}

		this._updateOpacity();

		//TODO createImage util method to remove duplication
		L.Util.extend(this._image, {
			galleryimg: 'no',
			onselectstart: L.Util.falseFn,
			onmousemove: L.Util.falseFn,
			onload: L.Util.bind(this._onImageLoad, this),
			src: this._url
		});
	},

	_animateZoom: function (e) {
		var map = this._map,
			image = this._image,
		    scale = map.getZoomScale(e.zoom),
		    nw = this._bounds.getNorthWest(),
		    se = this._bounds.getSouthEast(),
		    topLeft = map._latLngToNewLayerPoint(nw, e.zoom, e.center),
		    size = map._latLngToNewLayerPoint(se, e.zoom, e.center).subtract(topLeft),
		    currentSize = map.latLngToLayerPoint(se).subtract(map.latLngToLayerPoint(nw)),
		    origin = topLeft.add(size.subtract(currentSize).divideBy(2));

		image.style[L.DomUtil.TRANSFORM] = L.DomUtil.getTranslateString(origin) + ' scale(' + scale + ') ';
	},

	_reset: function () {
		var image   = this._image,
		    topLeft = this._map.latLngToLayerPoint(this._bounds.getNorthWest()),
		    size    = this._map.latLngToLayerPoint(this._bounds.getSouthEast()).subtract(topLeft);

		L.DomUtil.setPosition(image, topLeft);

		image.style.width  = size.x + 'px';
		image.style.height = size.y + 'px';
	},

	_onImageLoad: function () {
		this.fire('load');
	},

	_updateOpacity: function () {
		L.DomUtil.setOpacity(this._image, this.options.opacity);
	}
});

L.imageOverlay = function (url, bounds, options) {
	return new L.ImageOverlay(url, bounds, options);
};


L.Icon = L.Class.extend({
	options: {
		/*
		iconUrl: (String) (required)
		iconSize: (Point) (can be set through CSS)
		iconAnchor: (Point) (centered by default if size is specified, can be set in CSS with negative margins)
		popupAnchor: (Point) (if not specified, popup opens in the anchor point)
		shadowUrl: (Point) (no shadow by default)
		shadowSize: (Point)
		shadowAnchor: (Point)
		*/
		className: ''
	},

	initialize: function (options) {
		L.Util.setOptions(this, options);
	},

	createIcon: function () {
		return this._createIcon('icon');
	},

	createShadow: function () {
		return this._createIcon('shadow');
	},

	_createIcon: function (name) {
		var src = this._getIconUrl(name);

		if (!src) {
			if (name === 'icon') {
				throw new Error("iconUrl not set in Icon options (see the docs).");
			}
			return null;
		}

		var img = this._createImg(src);
		this._setIconStyles(img, name);

		return img;
	},

	_setIconStyles: function (img, name) {
		var options = this.options,
			size = L.point(options[name + 'Size']),
			anchor;

		if (name === 'shadow') {
			anchor = L.point(options.shadowAnchor || options.iconAnchor);
		} else {
			anchor = L.point(options.iconAnchor);
		}

		if (!anchor && size) {
			anchor = size.divideBy(2, true);
		}

		img.className = 'leaflet-marker-' + name + ' ' + options.className;

		if (anchor) {
			img.style.marginLeft = (-anchor.x) + 'px';
			img.style.marginTop  = (-anchor.y) + 'px';
		}

		if (size) {
			img.style.width  = size.x + 'px';
			img.style.height = size.y + 'px';
		}
	},

	_createImg: function (src) {
		var el;

		if (!L.Browser.ie6) {
			el = document.createElement('img');
			el.src = src;
		} else {
			el = document.createElement('div');
			el.style.filter = 'progid:DXImageTransform.Microsoft.AlphaImageLoader(src="' + src + '")';
		}
		return el;
	},

	_getIconUrl: function (name) {
		return this.options[name + 'Url'];
	}
});

L.icon = function (options) {
	return new L.Icon(options);
};



L.Icon.Default = L.Icon.extend({

	options: {
		iconSize: new L.Point(25, 41),
		iconAnchor: new L.Point(13, 41),
		popupAnchor: new L.Point(1, -34),

		shadowSize: new L.Point(41, 41)
	},

	_getIconUrl: function (name) {
		var key = name + 'Url';

		if (this.options[key]) {
			return this.options[key];
		}

		var path = L.Icon.Default.imagePath;

		if (!path) {
			throw new Error("Couldn't autodetect L.Icon.Default.imagePath, set it manually.");
		}

		return path + '/marker-' + name + '.png';
	}
});

L.Icon.Default.imagePath = (function () {
	var scripts = document.getElementsByTagName('script'),
	    leafletRe = /\/?leaflet[\-\._]?([\w\-\._]*)\.js\??/;

	var i, len, src, matches;

	for (i = 0, len = scripts.length; i < len; i++) {
		src = scripts[i].src;
		matches = src.match(leafletRe);

		if (matches) {
			return src.split(leafletRe)[0] + '/images';
		}
	}
}());


/*
 * L.Marker is used to display clickable/draggable icons on the map.
 */

L.Marker = L.Class.extend({

	includes: L.Mixin.Events,

	options: {
		icon: new L.Icon.Default(),
		title: '',
		clickable: true,
		draggable: false,
		zIndexOffset: 0,
		opacity: 1
	},

	initialize: function (latlng, options) {
		L.Util.setOptions(this, options);
		this._latlng = L.latLng(latlng);
	},

	onAdd: function (map) {
		this._map = map;

		map.on('viewreset', this.update, this);

		this._initIcon();
		this.update();

		if (map.options.zoomAnimation && map.options.markerZoomAnimation) {
			map.on('zoomanim', this._animateZoom, this);
		}
	},

	addTo: function (map) {
		map.addLayer(this);
		return this;
	},

	onRemove: function (map) {
		this._removeIcon();

		// TODO move to Marker.Popup.js
		if (this.closePopup) {
			this.closePopup();
		}

		map.off({
			'viewreset': this.update,
			'zoomanim': this._animateZoom
		}, this);

		this._map = null;
	},

	getLatLng: function () {
		return this._latlng;
	},

	setLatLng: function (latlng) {
		this._latlng = L.latLng(latlng);

		this.update();

		if (this._popup) {
			this._popup.setLatLng(latlng);
		}
	},

	setZIndexOffset: function (offset) {
		this.options.zIndexOffset = offset;
		this.update();
	},

	setIcon: function (icon) {
		if (this._map) {
			this._removeIcon();
		}

		this.options.icon = icon;

		if (this._map) {
			this._initIcon();
			this.update();
		}
	},

	update: function () {
		if (!this._icon) { return; }

		var pos = this._map.latLngToLayerPoint(this._latlng).round();
		this._setPos(pos);
	},

	_initIcon: function () {
		var options = this.options,
		    map = this._map,
		    animation = (map.options.zoomAnimation && map.options.markerZoomAnimation),
		    classToAdd = animation ? 'leaflet-zoom-animated' : 'leaflet-zoom-hide',
		    needOpacityUpdate = false;

		if (!this._icon) {
			this._icon = options.icon.createIcon();

			if (options.title) {
				this._icon.title = options.title;
			}

			this._initInteraction();
			needOpacityUpdate = (this.options.opacity < 1);

			L.DomUtil.addClass(this._icon, classToAdd);
		}
		if (!this._shadow) {
			this._shadow = options.icon.createShadow();

			if (this._shadow) {
				L.DomUtil.addClass(this._shadow, classToAdd);
				needOpacityUpdate = (this.options.opacity < 1);
			}
		}

		if (needOpacityUpdate) {
			this._updateOpacity();
		}

		var panes = this._map._panes;

		panes.markerPane.appendChild(this._icon);

		if (this._shadow) {
			panes.shadowPane.appendChild(this._shadow);
		}
	},

	_removeIcon: function () {
		var panes = this._map._panes;

		panes.markerPane.removeChild(this._icon);

		if (this._shadow) {
			panes.shadowPane.removeChild(this._shadow);
		}

		this._icon = this._shadow = null;
	},

	_setPos: function (pos) {
		L.DomUtil.setPosition(this._icon, pos);

		if (this._shadow) {
			L.DomUtil.setPosition(this._shadow, pos);
		}

		this._icon.style.zIndex = pos.y + this.options.zIndexOffset;
	},

	_animateZoom: function (opt) {
		var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center);

		this._setPos(pos);
	},

	_initInteraction: function () {
		if (!this.options.clickable) {
			return;
		}

		var icon = this._icon,
			events = ['dblclick', 'mousedown', 'mouseover', 'mouseout'];

		L.DomUtil.addClass(icon, 'leaflet-clickable');
		L.DomEvent.on(icon, 'click', this._onMouseClick, this);

		for (var i = 0; i < events.length; i++) {
			L.DomEvent.on(icon, events[i], this._fireMouseEvent, this);
		}

		if (L.Handler.MarkerDrag) {
			this.dragging = new L.Handler.MarkerDrag(this);

			if (this.options.draggable) {
				this.dragging.enable();
			}
		}
	},

	_onMouseClick: function (e) {
		L.DomEvent.stopPropagation(e);
		if (this.dragging && this.dragging.moved()) { return; }
		if (this._map.dragging && this._map.dragging.moved()) { return; }
		this.fire(e.type, {
			originalEvent: e
		});
	},

	_fireMouseEvent: function (e) {
		this.fire(e.type, {
			originalEvent: e
		});
		if (e.type !== 'mousedown') {
			L.DomEvent.stopPropagation(e);
		}
	},

	setOpacity: function (opacity) {
		this.options.opacity = opacity;
		if (this._map) {
			this._updateOpacity();
		}
	},

	_updateOpacity: function () {
		L.DomUtil.setOpacity(this._icon, this.options.opacity);
		if (this._shadow) {
			L.DomUtil.setOpacity(this._shadow, this.options.opacity);
		}
	}
});

L.marker = function (latlng, options) {
	return new L.Marker(latlng, options);
};


L.DivIcon = L.Icon.extend({
	options: {
		iconSize: new L.Point(12, 12), // also can be set through CSS
		/*
		iconAnchor: (Point)
		popupAnchor: (Point)
		html: (String)
		bgPos: (Point)
		*/
		className: 'leaflet-div-icon'
	},

	createIcon: function () {
		var div = document.createElement('div'),
		    options = this.options;

		if (options.html) {
			div.innerHTML = options.html;
		}

		if (options.bgPos) {
			div.style.backgroundPosition =
					(-options.bgPos.x) + 'px ' + (-options.bgPos.y) + 'px';
		}

		this._setIconStyles(div, 'icon');
		return div;
	},

	createShadow: function () {
		return null;
	}
});

L.divIcon = function (options) {
	return new L.DivIcon(options);
};



L.Map.mergeOptions({
	closePopupOnClick: true
});

L.Popup = L.Class.extend({
	includes: L.Mixin.Events,

	options: {
		minWidth: 50,
		maxWidth: 300,
		maxHeight: null,
		autoPan: true,
		closeButton: true,
		offset: new L.Point(0, 6),
		autoPanPadding: new L.Point(5, 5),
		className: ''
	},

	initialize: function (options, source) {
		L.Util.setOptions(this, options);

		this._source = source;
	},

	onAdd: function (map) {
		this._map = map;

		if (!this._container) {
			this._initLayout();
		}
		this._updateContent();

		var animFade = map.options.fadeAnimation;

		if (animFade) {
			L.DomUtil.setOpacity(this._container, 0);
		}
		map._panes.popupPane.appendChild(this._container);

		map.on('viewreset', this._updatePosition, this);

		if (L.Browser.any3d) {
			map.on('zoomanim', this._zoomAnimation, this);
		}

		if (map.options.closePopupOnClick) {
			map.on('preclick', this._close, this);
		}

		this._update();

		if (animFade) {
			L.DomUtil.setOpacity(this._container, 1);
		}
	},

	addTo: function (map) {
		map.addLayer(this);
		return this;
	},

	openOn: function (map) {
		map.openPopup(this);
		return this;
	},

	onRemove: function (map) {
		map._panes.popupPane.removeChild(this._container);

		L.Util.falseFn(this._container.offsetWidth); // force reflow

		map.off({
			viewreset: this._updatePosition,
			preclick: this._close,
			zoomanim: this._zoomAnimation
		}, this);

		if (map.options.fadeAnimation) {
			L.DomUtil.setOpacity(this._container, 0);
		}

		this._map = null;
	},

	setLatLng: function (latlng) {
		this._latlng = L.latLng(latlng);
		this._update();
		return this;
	},

	setContent: function (content) {
		this._content = content;
		this._update();
		return this;
	},

	_close: function () {
		var map = this._map;

		if (map) {
			map._popup = null;

			map
				.removeLayer(this)
				.fire('popupclose', {popup: this});
		}
	},

	_initLayout: function () {
		var prefix = 'leaflet-popup',
			container = this._container = L.DomUtil.create('div', prefix + ' ' + this.options.className + ' leaflet-zoom-animated'),
			closeButton;

		if (this.options.closeButton) {
			closeButton = this._closeButton = L.DomUtil.create('a', prefix + '-close-button', container);
			closeButton.href = '#close';
			closeButton.innerHTML = '&#215;';

			L.DomEvent.on(closeButton, 'click', this._onCloseButtonClick, this);
		}

		var wrapper = this._wrapper = L.DomUtil.create('div', prefix + '-content-wrapper', container);
		L.DomEvent.disableClickPropagation(wrapper);

		this._contentNode = L.DomUtil.create('div', prefix + '-content', wrapper);
		L.DomEvent.on(this._contentNode, 'mousewheel', L.DomEvent.stopPropagation);

		this._tipContainer = L.DomUtil.create('div', prefix + '-tip-container', container);
		this._tip = L.DomUtil.create('div', prefix + '-tip', this._tipContainer);
	},

	_update: function () {
		if (!this._map) { return; }

		this._container.style.visibility = 'hidden';

		this._updateContent();
		this._updateLayout();
		this._updatePosition();

		this._container.style.visibility = '';

		this._adjustPan();
	},

	_updateContent: function () {
		if (!this._content) { return; }

		if (typeof this._content === 'string') {
			this._contentNode.innerHTML = this._content;
		} else {
			while (this._contentNode.hasChildNodes()) {
				this._contentNode.removeChild(this._contentNode.firstChild);
			}
			this._contentNode.appendChild(this._content);
		}
		this.fire('contentupdate');
	},

	_updateLayout: function () {
		var container = this._contentNode,
			style = container.style;

		style.width = '';
		style.whiteSpace = 'nowrap';

		var width = container.offsetWidth;
		width = Math.min(width, this.options.maxWidth);
		width = Math.max(width, this.options.minWidth);

		style.width = (width + 1) + 'px';
		style.whiteSpace = '';

		style.height = '';

		var height = container.offsetHeight,
			maxHeight = this.options.maxHeight,
			scrolledClass = 'leaflet-popup-scrolled';

		if (maxHeight && height > maxHeight) {
			style.height = maxHeight + 'px';
			L.DomUtil.addClass(container, scrolledClass);
		} else {
			L.DomUtil.removeClass(container, scrolledClass);
		}

		this._containerWidth = this._container.offsetWidth;
	},

	_updatePosition: function () {
		var pos = this._map.latLngToLayerPoint(this._latlng),
			is3d = L.Browser.any3d,
			offset = this.options.offset;

		if (is3d) {
			L.DomUtil.setPosition(this._container, pos);
		}

		this._containerBottom = -offset.y - (is3d ? 0 : pos.y);
		this._containerLeft = -Math.round(this._containerWidth / 2) + offset.x + (is3d ? 0 : pos.x);

		//Bottom position the popup in case the height of the popup changes (images loading etc)
		this._container.style.bottom = this._containerBottom + 'px';
		this._container.style.left = this._containerLeft + 'px';
	},

	_zoomAnimation: function (opt) {
		var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center);

		L.DomUtil.setPosition(this._container, pos);
	},

	_adjustPan: function () {
		if (!this.options.autoPan) { return; }

		var map = this._map,
			containerHeight = this._container.offsetHeight,
			containerWidth = this._containerWidth,

			layerPos = new L.Point(this._containerLeft, -containerHeight - this._containerBottom);

		if (L.Browser.any3d) {
			layerPos._add(L.DomUtil.getPosition(this._container));
		}

		var containerPos = map.layerPointToContainerPoint(layerPos),
			padding = this.options.autoPanPadding,
			size = map.getSize(),
			dx = 0,
			dy = 0;

		if (containerPos.x < 0) {
			dx = containerPos.x - padding.x;
		}
		if (containerPos.x + containerWidth > size.x) {
			dx = containerPos.x + containerWidth - size.x + padding.x;
		}
		if (containerPos.y < 0) {
			dy = containerPos.y - padding.y;
		}
		if (containerPos.y + containerHeight > size.y) {
			dy = containerPos.y + containerHeight - size.y + padding.y;
		}

		if (dx || dy) {
			map.panBy(new L.Point(dx, dy));
		}
	},

	_onCloseButtonClick: function (e) {
		this._close();
		L.DomEvent.stop(e);
	}
});

L.popup = function (options, source) {
	return new L.Popup(options, source);
};


/*
 * Popup extension to L.Marker, adding openPopup & bindPopup methods.
 */

L.Marker.include({
	openPopup: function () {
		if (this._popup && this._map) {
			this._popup.setLatLng(this._latlng);
			this._map.openPopup(this._popup);
		}

		return this;
	},

	closePopup: function () {
		if (this._popup) {
			this._popup._close();
		}
		return this;
	},

	bindPopup: function (content, options) {
		var anchor = L.point(this.options.icon.options.popupAnchor) || new L.Point(0, 0);

		anchor = anchor.add(L.Popup.prototype.options.offset);

		if (options && options.offset) {
			anchor = anchor.add(options.offset);
		}

		options = L.Util.extend({offset: anchor}, options);

		if (!this._popup) {
			this.on('click', this.openPopup, this);
		}

		this._popup = new L.Popup(options, this)
			.setContent(content);

		return this;
	},

	unbindPopup: function () {
		if (this._popup) {
			this._popup = null;
			this.off('click', this.openPopup);
		}
		return this;
	}
});



L.Map.include({
	openPopup: function (popup) {
		this.closePopup();

		this._popup = popup;

		return this
			.addLayer(popup)
			.fire('popupopen', {popup: this._popup});
	},

	closePopup: function () {
		if (this._popup) {
			this._popup._close();
		}
		return this;
	}
});

/*
 * L.LayerGroup is a class to combine several layers so you can manipulate the group (e.g. add/remove it) as one layer.
 */

L.LayerGroup = L.Class.extend({
	initialize: function (layers) {
		this._layers = {};

		var i, len;

		if (layers) {
			for (i = 0, len = layers.length; i < len; i++) {
				this.addLayer(layers[i]);
			}
		}
	},

	addLayer: function (layer) {
		var id = L.Util.stamp(layer);

		this._layers[id] = layer;

		if (this._map) {
			this._map.addLayer(layer);
		}

		return this;
	},

	removeLayer: function (layer) {
		var id = L.Util.stamp(layer);

		delete this._layers[id];

		if (this._map) {
			this._map.removeLayer(layer);
		}

		return this;
	},

	clearLayers: function () {
		this.eachLayer(this.removeLayer, this);
		return this;
	},

	invoke: function (methodName) {
		var args = Array.prototype.slice.call(arguments, 1),
			i, layer;

		for (i in this._layers) {
			if (this._layers.hasOwnProperty(i)) {
				layer = this._layers[i];

				if (layer[methodName]) {
					layer[methodName].apply(layer, args);
				}
			}
		}

		return this;
	},

	onAdd: function (map) {
		this._map = map;
		this.eachLayer(map.addLayer, map);
	},

	onRemove: function (map) {
		this.eachLayer(map.removeLayer, map);
		this._map = null;
	},

	addTo: function (map) {
		map.addLayer(this);
		return this;
	},

	eachLayer: function (method, context) {
		for (var i in this._layers) {
			if (this._layers.hasOwnProperty(i)) {
				method.call(context, this._layers[i]);
			}
		}
	}
});

L.layerGroup = function (layers) {
	return new L.LayerGroup(layers);
};


/*
 * L.FeatureGroup extends L.LayerGroup by introducing mouse events and bindPopup method shared between a group of layers.
 */

L.FeatureGroup = L.LayerGroup.extend({
	includes: L.Mixin.Events,

	addLayer: function (layer) {
		if (this._layers[L.Util.stamp(layer)]) {
			return this;
		}

		layer.on('click dblclick mouseover mouseout mousemove contextmenu', this._propagateEvent, this);

		L.LayerGroup.prototype.addLayer.call(this, layer);

		if (this._popupContent && layer.bindPopup) {
			layer.bindPopup(this._popupContent);
		}

		return this;
	},

	removeLayer: function (layer) {
		layer.off('click dblclick mouseover mouseout mousemove contextmenu', this._propagateEvent, this);

		L.LayerGroup.prototype.removeLayer.call(this, layer);

		if (this._popupContent) {
			return this.invoke('unbindPopup');
		} else {
			return this;
		}
	},

	bindPopup: function (content) {
		this._popupContent = content;
		return this.invoke('bindPopup', content);
	},

	setStyle: function (style) {
		return this.invoke('setStyle', style);
	},

	getBounds: function () {
		var bounds = new L.LatLngBounds();
		this.eachLayer(function (layer) {
			bounds.extend(layer instanceof L.Marker ? layer.getLatLng() : layer.getBounds());
		}, this);
		return bounds;
	},

	_propagateEvent: function (e) {
		e.layer  = e.target;
		e.target = this;

		this.fire(e.type, e);
	}
});

L.featureGroup = function (layers) {
	return new L.FeatureGroup(layers);
};


/*
 * L.Path is a base class for rendering vector paths on a map. It's inherited by Polyline, Circle, etc.
 */

L.Path = L.Class.extend({
	includes: [L.Mixin.Events],

	statics: {
		// how much to extend the clip area around the map view
		// (relative to its size, e.g. 0.5 is half the screen in each direction)
		// set in such way that SVG element doesn't exceed 1280px (vector layers flicker on dragend if it is)
		CLIP_PADDING: L.Browser.mobile ?
			Math.max(0, Math.min(0.5,
				(1280 / Math.max(window.innerWidth, window.innerHeight) - 1) / 2))
			: 0.5
	},

	options: {
		stroke: true,
		color: '#0033ff',
		dashArray: null,
		weight: 5,
		opacity: 0.5,

		fill: false,
		fillColor: null, //same as color by default
		fillOpacity: 0.2,

		clickable: true
	},

	initialize: function (options) {
		L.Util.setOptions(this, options);
	},

	onAdd: function (map) {
		this._map = map;

		if (!this._container) {
			this._initElements();
			this._initEvents();
		}

		this.projectLatlngs();
		this._updatePath();

		if (this._container) {
			this._map._pathRoot.appendChild(this._container);
		}

		map.on({
			'viewreset': this.projectLatlngs,
			'moveend': this._updatePath
		}, this);
	},

	addTo: function (map) {
		map.addLayer(this);
		return this;
	},

	onRemove: function (map) {
		map._pathRoot.removeChild(this._container);

		this._map = null;

		if (L.Browser.vml) {
			this._container = null;
			this._stroke = null;
			this._fill = null;
		}

		map.off({
			'viewreset': this.projectLatlngs,
			'moveend': this._updatePath
		}, this);
	},

	projectLatlngs: function () {
		// do all projection stuff here
	},

	setStyle: function (style) {
		L.Util.setOptions(this, style);

		if (this._container) {
			this._updateStyle();
		}

		return this;
	},

	redraw: function () {
		if (this._map) {
			this.projectLatlngs();
			this._updatePath();
		}
		return this;
	}
});

L.Map.include({
	_updatePathViewport: function () {
		var p = L.Path.CLIP_PADDING,
			size = this.getSize(),
			panePos = L.DomUtil.getPosition(this._mapPane),
			min = panePos.multiplyBy(-1)._subtract(size.multiplyBy(p)),
			max = min.add(size.multiplyBy(1 + p * 2));

		this._pathViewport = new L.Bounds(min, max);
	}
});


L.Path.SVG_NS = 'http://www.w3.org/2000/svg';

L.Browser.svg = !!(document.createElementNS && document.createElementNS(L.Path.SVG_NS, 'svg').createSVGRect);

L.Path = L.Path.extend({
	statics: {
		SVG: L.Browser.svg
	},

	bringToFront: function () {
		if (this._container) {
			this._map._pathRoot.appendChild(this._container);
		}
	},

	bringToBack: function () {
		if (this._container) {
			var root = this._map._pathRoot;
			root.insertBefore(this._container, root.firstChild);
		}
	},

	getPathString: function () {
		// form path string here
	},

	_createElement: function (name) {
		return document.createElementNS(L.Path.SVG_NS, name);
	},

	_initElements: function () {
		this._map._initPathRoot();
		this._initPath();
		this._initStyle();
	},

	_initPath: function () {
		this._container = this._createElement('g');

		this._path = this._createElement('path');
		this._container.appendChild(this._path);
	},

	_initStyle: function () {
		if (this.options.stroke) {
			this._path.setAttribute('stroke-linejoin', 'round');
			this._path.setAttribute('stroke-linecap', 'round');
		}
		if (this.options.fill) {
			this._path.setAttribute('fill-rule', 'evenodd');
		}
		this._updateStyle();
	},

	_updateStyle: function () {
		if (this.options.stroke) {
			this._path.setAttribute('stroke', this.options.color);
			this._path.setAttribute('stroke-opacity', this.options.opacity);
			this._path.setAttribute('stroke-width', this.options.weight);
			if (this.options.dashArray) {
				this._path.setAttribute('stroke-dasharray', this.options.dashArray);
			} else {
				this._path.removeAttribute('stroke-dasharray');
			}
		} else {
			this._path.setAttribute('stroke', 'none');
		}
		if (this.options.fill) {
			this._path.setAttribute('fill', this.options.fillColor || this.options.color);
			this._path.setAttribute('fill-opacity', this.options.fillOpacity);
		} else {
			this._path.setAttribute('fill', 'none');
		}
	},

	_updatePath: function () {
		var str = this.getPathString();
		if (!str) {
			// fix webkit empty string parsing bug
			str = 'M0 0';
		}
		this._path.setAttribute('d', str);
	},

	// TODO remove duplication with L.Map
	_initEvents: function () {
		if (this.options.clickable) {
			if (L.Browser.svg || !L.Browser.vml) {
				this._path.setAttribute('class', 'leaflet-clickable');
			}

			L.DomEvent.on(this._container, 'click', this._onMouseClick, this);

			var events = ['dblclick', 'mousedown', 'mouseover', 'mouseout', 'mousemove', 'contextmenu'];
			for (var i = 0; i < events.length; i++) {
				L.DomEvent.on(this._container, events[i], this._fireMouseEvent, this);
			}
		}
	},

	_onMouseClick: function (e) {
		if (this._map.dragging && this._map.dragging.moved()) {
			return;
		}

		this._fireMouseEvent(e);

		L.DomEvent.stopPropagation(e);
	},

	_fireMouseEvent: function (e) {
		if (!this.hasEventListeners(e.type)) {
			return;
		}

		if (e.type === 'contextmenu') {
			L.DomEvent.preventDefault(e);
		}

		var map = this._map,
			containerPoint = map.mouseEventToContainerPoint(e),
			layerPoint = map.containerPointToLayerPoint(containerPoint),
			latlng = map.layerPointToLatLng(layerPoint);

		this.fire(e.type, {
			latlng: latlng,
			layerPoint: layerPoint,
			containerPoint: containerPoint,
			originalEvent: e
		});
	}
});

L.Map.include({
	_initPathRoot: function () {
		if (!this._pathRoot) {
			this._pathRoot = L.Path.prototype._createElement('svg');
			this._panes.overlayPane.appendChild(this._pathRoot);

			if (this.options.zoomAnimation && L.Browser.any3d) {
				this._pathRoot.setAttribute('class', ' leaflet-zoom-animated');

				this.on({
					'zoomanim': this._animatePathZoom,
					'zoomend': this._endPathZoom
				});
			} else {
				this._pathRoot.setAttribute('class', ' leaflet-zoom-hide');
			}

			this.on('moveend', this._updateSvgViewport);
			this._updateSvgViewport();
		}
	},

	_animatePathZoom: function (opt) {
		var scale = this.getZoomScale(opt.zoom),
			offset = this._getCenterOffset(opt.center).divideBy(1 - 1 / scale),
			viewportPos = this.containerPointToLayerPoint(this.getSize().multiplyBy(-L.Path.CLIP_PADDING)),
			origin = viewportPos.add(offset).round();

		this._pathRoot.style[L.DomUtil.TRANSFORM] = L.DomUtil.getTranslateString((origin.multiplyBy(-1).add(L.DomUtil.getPosition(this._pathRoot)).multiplyBy(scale).add(origin))) + ' scale(' + scale + ') ';

		this._pathZooming = true;
	},

	_endPathZoom: function () {
		this._pathZooming = false;
	},

	_updateSvgViewport: function () {
		if (this._pathZooming) {
			// Do not update SVGs while a zoom animation is going on otherwise the animation will break.
			// When the zoom animation ends we will be updated again anyway
			// This fixes the case where you do a momentum move and zoom while the move is still ongoing.
			return;
		}

		this._updatePathViewport();

		var vp = this._pathViewport,
			min = vp.min,
			max = vp.max,
			width = max.x - min.x,
			height = max.y - min.y,
			root = this._pathRoot,
			pane = this._panes.overlayPane;

		// Hack to make flicker on drag end on mobile webkit less irritating
		if (L.Browser.mobileWebkit) {
			pane.removeChild(root);
		}

		L.DomUtil.setPosition(root, min);
		root.setAttribute('width', width);
		root.setAttribute('height', height);
		root.setAttribute('viewBox', [min.x, min.y, width, height].join(' '));

		if (L.Browser.mobileWebkit) {
			pane.appendChild(root);
		}
	}
});


/*
 * Popup extension to L.Path (polylines, polygons, circles), adding bindPopup method.
 */

L.Path.include({

	bindPopup: function (content, options) {

		if (!this._popup || this._popup.options !== options) {
			this._popup = new L.Popup(options, this);
		}

		this._popup.setContent(content);

		if (!this._openPopupAdded) {
			this.on('click', this._openPopup, this);
			this._openPopupAdded = true;
		}

		return this;
	},

	openPopup: function (latlng) {

		if (this._popup) {
			latlng = latlng || this._latlng ||
					this._latlngs[Math.floor(this._latlngs.length / 2)];

			this._openPopup({latlng: latlng});
		}

		return this;
	},

	_openPopup: function (e) {
		this._popup.setLatLng(e.latlng);
		this._map.openPopup(this._popup);
	}
});


/*
 * Vector rendering for IE6-8 through VML.
 * Thanks to Dmitry Baranovsky and his Raphael library for inspiration!
 */

L.Browser.vml = (function () {
	try {
		var div = document.createElement('div');
		div.innerHTML = '<v:shape adj="1"/>';

		var shape = div.firstChild;
		shape.style.behavior = 'url(#default#VML)';

		return shape && (typeof shape.adj === 'object');
	} catch (e) {
		return false;
	}
}());

L.Path = L.Browser.svg || !L.Browser.vml ? L.Path : L.Path.extend({
	statics: {
		VML: true,
		CLIP_PADDING: 0.02
	},

	_createElement: (function () {
		try {
			document.namespaces.add('lvml', 'urn:schemas-microsoft-com:vml');
			return function (name) {
				return document.createElement('<lvml:' + name + ' class="lvml">');
			};
		} catch (e) {
			return function (name) {
				return document.createElement('<' + name + ' xmlns="urn:schemas-microsoft.com:vml" class="lvml">');
			};
		}
	}()),

	_initPath: function () {
		var container = this._container = this._createElement('shape');
		L.DomUtil.addClass(container, 'leaflet-vml-shape');
		if (this.options.clickable) {
			L.DomUtil.addClass(container, 'leaflet-clickable');
		}
		container.coordsize = '1 1';

		this._path = this._createElement('path');
		container.appendChild(this._path);

		this._map._pathRoot.appendChild(container);
	},

	_initStyle: function () {
		this._updateStyle();
	},

	_updateStyle: function () {
		var stroke = this._stroke,
			fill = this._fill,
			options = this.options,
			container = this._container;

		container.stroked = options.stroke;
		container.filled = options.fill;

		if (options.stroke) {
			if (!stroke) {
				stroke = this._stroke = this._createElement('stroke');
				stroke.endcap = 'round';
				container.appendChild(stroke);
			}
			stroke.weight = options.weight + 'px';
			stroke.color = options.color;
			stroke.opacity = options.opacity;
			if (options.dashArray) {
				stroke.dashStyle = options.dashArray.replace(/ *, */g, ' ');
			} else {
				stroke.dashStyle = '';
			}
		} else if (stroke) {
			container.removeChild(stroke);
			this._stroke = null;
		}

		if (options.fill) {
			if (!fill) {
				fill = this._fill = this._createElement('fill');
				container.appendChild(fill);
			}
			fill.color = options.fillColor || options.color;
			fill.opacity = options.fillOpacity;
		} else if (fill) {
			container.removeChild(fill);
			this._fill = null;
		}
	},

	_updatePath: function () {
		var style = this._container.style;

		style.display = 'none';
		this._path.v = this.getPathString() + ' '; // the space fixes IE empty path string bug
		style.display = '';
	}
});

L.Map.include(L.Browser.svg || !L.Browser.vml ? {} : {
	_initPathRoot: function () {
		if (this._pathRoot) { return; }

		var root = this._pathRoot = document.createElement('div');
		root.className = 'leaflet-vml-container';
		this._panes.overlayPane.appendChild(root);

		this.on('moveend', this._updatePathViewport);
		this._updatePathViewport();
	}
});


/*
 * Vector rendering for all browsers that support canvas.
 */

L.Browser.canvas = (function () {
	return !!document.createElement('canvas').getContext;
}());

L.Path = (L.Path.SVG && !window.L_PREFER_CANVAS) || !L.Browser.canvas ? L.Path : L.Path.extend({
	statics: {
		//CLIP_PADDING: 0.02, // not sure if there's a need to set it to a small value
		CANVAS: true,
		SVG: false
	},

	redraw: function () {
		if (this._map) {
			this.projectLatlngs();
			this._requestUpdate();
		}
		return this;
	},

	setStyle: function (style) {
		L.Util.setOptions(this, style);

		if (this._map) {
			this._updateStyle();
			this._requestUpdate();
		}
		return this;
	},

	onRemove: function (map) {
		map
		    .off('viewreset', this.projectLatlngs, this)
		    .off('moveend', this._updatePath, this);

		this._requestUpdate();

		this._map = null;
	},

	_requestUpdate: function () {
		if (this._map) {
			L.Util.cancelAnimFrame(this._fireMapMoveEnd);
			this._updateRequest = L.Util.requestAnimFrame(this._fireMapMoveEnd, this._map);
		}
	},

	_fireMapMoveEnd: function () {
		this.fire('moveend');
	},

	_initElements: function () {
		this._map._initPathRoot();
		this._ctx = this._map._canvasCtx;
	},

	_updateStyle: function () {
		var options = this.options;

		if (options.stroke) {
			this._ctx.lineWidth = options.weight;
			this._ctx.strokeStyle = options.color;
		}
		if (options.fill) {
			this._ctx.fillStyle = options.fillColor || options.color;
		}
	},

	_drawPath: function () {
		var i, j, len, len2, point, drawMethod;

		this._ctx.beginPath();

		for (i = 0, len = this._parts.length; i < len; i++) {
			for (j = 0, len2 = this._parts[i].length; j < len2; j++) {
				point = this._parts[i][j];
				drawMethod = (j === 0 ? 'move' : 'line') + 'To';

				this._ctx[drawMethod](point.x, point.y);
			}
			// TODO refactor ugly hack
			if (this instanceof L.Polygon) {
				this._ctx.closePath();
			}
		}
	},

	_checkIfEmpty: function () {
		return !this._parts.length;
	},

	_updatePath: function () {
		if (this._checkIfEmpty()) { return; }

		var ctx = this._ctx,
			options = this.options;

		this._drawPath();
		ctx.save();
		this._updateStyle();

		if (options.fill) {
			if (options.fillOpacity < 1) {
				ctx.globalAlpha = options.fillOpacity;
			}
			ctx.fill();
		}

		if (options.stroke) {
			if (options.opacity < 1) {
				ctx.globalAlpha = options.opacity;
			}
			ctx.stroke();
		}

		ctx.restore();

		// TODO optimization: 1 fill/stroke for all features with equal style instead of 1 for each feature
	},

	_initEvents: function () {
		if (this.options.clickable) {
			// TODO hand cursor
			// TODO mouseover, mouseout, dblclick
			this._map.on('click', this._onClick, this);
		}
	},

	_onClick: function (e) {
		if (this._containsPoint(e.layerPoint)) {
			this.fire('click', e);
		}
	}
});

L.Map.include((L.Path.SVG && !window.L_PREFER_CANVAS) || !L.Browser.canvas ? {} : {
	_initPathRoot: function () {
		var root = this._pathRoot,
			ctx;

		if (!root) {
			root = this._pathRoot = document.createElement("canvas");
			root.style.position = 'absolute';
			ctx = this._canvasCtx = root.getContext('2d');

			ctx.lineCap = "round";
			ctx.lineJoin = "round";

			this._panes.overlayPane.appendChild(root);

			if (this.options.zoomAnimation) {
				this._pathRoot.className = 'leaflet-zoom-animated';
				this.on('zoomanim', this._animatePathZoom);
				this.on('zoomend', this._endPathZoom);
			}
			this.on('moveend', this._updateCanvasViewport);
			this._updateCanvasViewport();
		}
	},

	_updateCanvasViewport: function () {
		if (this._pathZooming) {
			//Don't redraw while zooming. See _updateSvgViewport for more details
			return;
		}
		this._updatePathViewport();

		var vp = this._pathViewport,
			min = vp.min,
			size = vp.max.subtract(min),
			root = this._pathRoot;

		//TODO check if this works properly on mobile webkit
		L.DomUtil.setPosition(root, min);
		root.width = size.x;
		root.height = size.y;
		root.getContext('2d').translate(-min.x, -min.y);
	}
});


/*
 * L.LineUtil contains different utility functions for line segments
 * and polylines (clipping, simplification, distances, etc.)
 */

L.LineUtil = {

	// Simplify polyline with vertex reduction and Douglas-Peucker simplification.
	// Improves rendering performance dramatically by lessening the number of points to draw.

	simplify: function (/*Point[]*/ points, /*Number*/ tolerance) {
		if (!tolerance || !points.length) {
			return points.slice();
		}

		var sqTolerance = tolerance * tolerance;

		// stage 1: vertex reduction
		points = this._reducePoints(points, sqTolerance);

		// stage 2: Douglas-Peucker simplification
		points = this._simplifyDP(points, sqTolerance);

		return points;
	},

	// distance from a point to a segment between two points
	pointToSegmentDistance:  function (/*Point*/ p, /*Point*/ p1, /*Point*/ p2) {
		return Math.sqrt(this._sqClosestPointOnSegment(p, p1, p2, true));
	},

	closestPointOnSegment: function (/*Point*/ p, /*Point*/ p1, /*Point*/ p2) {
		return this._sqClosestPointOnSegment(p, p1, p2);
	},

	// Douglas-Peucker simplification, see http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm
	_simplifyDP: function (points, sqTolerance) {

		var len = points.length,
			ArrayConstructor = typeof Uint8Array !== undefined + '' ? Uint8Array : Array,
			markers = new ArrayConstructor(len);

		markers[0] = markers[len - 1] = 1;

		this._simplifyDPStep(points, markers, sqTolerance, 0, len - 1);

		var i,
			newPoints = [];

		for (i = 0; i < len; i++) {
			if (markers[i]) {
				newPoints.push(points[i]);
			}
		}

		return newPoints;
	},

	_simplifyDPStep: function (points, markers, sqTolerance, first, last) {

		var maxSqDist = 0,
			index, i, sqDist;

		for (i = first + 1; i <= last - 1; i++) {
			sqDist = this._sqClosestPointOnSegment(points[i], points[first], points[last], true);

			if (sqDist > maxSqDist) {
				index = i;
				maxSqDist = sqDist;
			}
		}

		if (maxSqDist > sqTolerance) {
			markers[index] = 1;

			this._simplifyDPStep(points, markers, sqTolerance, first, index);
			this._simplifyDPStep(points, markers, sqTolerance, index, last);
		}
	},

	// reduce points that are too close to each other to a single point
	_reducePoints: function (points, sqTolerance) {
		var reducedPoints = [points[0]];

		for (var i = 1, prev = 0, len = points.length; i < len; i++) {
			if (this._sqDist(points[i], points[prev]) > sqTolerance) {
				reducedPoints.push(points[i]);
				prev = i;
			}
		}
		if (prev < len - 1) {
			reducedPoints.push(points[len - 1]);
		}
		return reducedPoints;
	},

	/*jshint bitwise:false */ // temporarily allow bitwise oprations

	// Cohen-Sutherland line clipping algorithm.
	// Used to avoid rendering parts of a polyline that are not currently visible.

	clipSegment: function (a, b, bounds, useLastCode) {
		var min = bounds.min,
			max = bounds.max;

		var codeA = useLastCode ? this._lastCode : this._getBitCode(a, bounds),
			codeB = this._getBitCode(b, bounds);

		// save 2nd code to avoid calculating it on the next segment
		this._lastCode = codeB;

		while (true) {
			// if a,b is inside the clip window (trivial accept)
			if (!(codeA | codeB)) {
				return [a, b];
			// if a,b is outside the clip window (trivial reject)
			} else if (codeA & codeB) {
				return false;
			// other cases
			} else {
				var codeOut = codeA || codeB,
					p = this._getEdgeIntersection(a, b, codeOut, bounds),
					newCode = this._getBitCode(p, bounds);

				if (codeOut === codeA) {
					a = p;
					codeA = newCode;
				} else {
					b = p;
					codeB = newCode;
				}
			}
		}
	},

	_getEdgeIntersection: function (a, b, code, bounds) {
		var dx = b.x - a.x,
			dy = b.y - a.y,
			min = bounds.min,
			max = bounds.max;

		if (code & 8) { // top
			return new L.Point(a.x + dx * (max.y - a.y) / dy, max.y);
		} else if (code & 4) { // bottom
			return new L.Point(a.x + dx * (min.y - a.y) / dy, min.y);
		} else if (code & 2) { // right
			return new L.Point(max.x, a.y + dy * (max.x - a.x) / dx);
		} else if (code & 1) { // left
			return new L.Point(min.x, a.y + dy * (min.x - a.x) / dx);
		}
	},

	_getBitCode: function (/*Point*/ p, bounds) {
		var code = 0;

		if (p.x < bounds.min.x) { // left
			code |= 1;
		} else if (p.x > bounds.max.x) { // right
			code |= 2;
		}
		if (p.y < bounds.min.y) { // bottom
			code |= 4;
		} else if (p.y > bounds.max.y) { // top
			code |= 8;
		}

		return code;
	},

	/*jshint bitwise:true */

	// square distance (to avoid unnecessary Math.sqrt calls)
	_sqDist: function (p1, p2) {
		var dx = p2.x - p1.x,
			dy = p2.y - p1.y;
		return dx * dx + dy * dy;
	},

	// return closest point on segment or distance to that point
	_sqClosestPointOnSegment: function (p, p1, p2, sqDist) {
		var x = p1.x,
			y = p1.y,
			dx = p2.x - x,
			dy = p2.y - y,
			dot = dx * dx + dy * dy,
			t;

		if (dot > 0) {
			t = ((p.x - x) * dx + (p.y - y) * dy) / dot;

			if (t > 1) {
				x = p2.x;
				y = p2.y;
			} else if (t > 0) {
				x += dx * t;
				y += dy * t;
			}
		}

		dx = p.x - x;
		dy = p.y - y;

		return sqDist ? dx * dx + dy * dy : new L.Point(x, y);
	}
};


L.Polyline = L.Path.extend({
	initialize: function (latlngs, options) {
		L.Path.prototype.initialize.call(this, options);

		this._latlngs = this._convertLatLngs(latlngs);

		// TODO refactor: move to Polyline.Edit.js
		if (L.Handler.PolyEdit) {
			this.editing = new L.Handler.PolyEdit(this);

			if (this.options.editable) {
				this.editing.enable();
			}
		}
	},

	options: {
		// how much to simplify the polyline on each zoom level
		// more = better performance and smoother look, less = more accurate
		smoothFactor: 1.0,
		noClip: false
	},

	projectLatlngs: function () {
		this._originalPoints = [];

		for (var i = 0, len = this._latlngs.length; i < len; i++) {
			this._originalPoints[i] = this._map.latLngToLayerPoint(this._latlngs[i]);
		}
	},

	getPathString: function () {
		for (var i = 0, len = this._parts.length, str = ''; i < len; i++) {
			str += this._getPathPartStr(this._parts[i]);
		}
		return str;
	},

	getLatLngs: function () {
		return this._latlngs;
	},

	setLatLngs: function (latlngs) {
		this._latlngs = this._convertLatLngs(latlngs);
		return this.redraw();
	},

	addLatLng: function (latlng) {
		this._latlngs.push(L.latLng(latlng));
		return this.redraw();
	},

	spliceLatLngs: function (index, howMany) {
		var removed = [].splice.apply(this._latlngs, arguments);
		this._convertLatLngs(this._latlngs);
		this.redraw();
		return removed;
	},

	closestLayerPoint: function (p) {
		var minDistance = Infinity, parts = this._parts, p1, p2, minPoint = null;

		for (var j = 0, jLen = parts.length; j < jLen; j++) {
			var points = parts[j];
			for (var i = 1, len = points.length; i < len; i++) {
				p1 = points[i - 1];
				p2 = points[i];
				var sqDist = L.LineUtil._sqClosestPointOnSegment(p, p1, p2, true);
				if (sqDist < minDistance) {
					minDistance = sqDist;
					minPoint = L.LineUtil._sqClosestPointOnSegment(p, p1, p2);
				}
			}
		}
		if (minPoint) {
			minPoint.distance = Math.sqrt(minDistance);
		}
		return minPoint;
	},

	getBounds: function () {
		var b = new L.LatLngBounds();
		var latLngs = this.getLatLngs();
		for (var i = 0, len = latLngs.length; i < len; i++) {
			b.extend(latLngs[i]);
		}
		return b;
	},

	// TODO refactor: move to Polyline.Edit.js
	onAdd: function (map) {
		L.Path.prototype.onAdd.call(this, map);

		if (this.editing && this.editing.enabled()) {
			this.editing.addHooks();
		}
	},

	onRemove: function (map) {
		if (this.editing && this.editing.enabled()) {
			this.editing.removeHooks();
		}

		L.Path.prototype.onRemove.call(this, map);
	},

	_convertLatLngs: function (latlngs) {
		var i, len;
		for (i = 0, len = latlngs.length; i < len; i++) {
			if (latlngs[i] instanceof Array && typeof latlngs[i][0] !== 'number') {
				return;
			}
			latlngs[i] = L.latLng(latlngs[i]);
		}
		return latlngs;
	},

	_initEvents: function () {
		L.Path.prototype._initEvents.call(this);
	},

	_getPathPartStr: function (points) {
		var round = L.Path.VML;

		for (var j = 0, len2 = points.length, str = '', p; j < len2; j++) {
			p = points[j];
			if (round) {
				p._round();
			}
			str += (j ? 'L' : 'M') + p.x + ' ' + p.y;
		}
		return str;
	},

	_clipPoints: function () {
		var points = this._originalPoints,
			len = points.length,
			i, k, segment;

		if (this.options.noClip) {
			this._parts = [points];
			return;
		}

		this._parts = [];

		var parts = this._parts,
			vp = this._map._pathViewport,
			lu = L.LineUtil;

		for (i = 0, k = 0; i < len - 1; i++) {
			segment = lu.clipSegment(points[i], points[i + 1], vp, i);
			if (!segment) {
				continue;
			}

			parts[k] = parts[k] || [];
			parts[k].push(segment[0]);

			// if segment goes out of screen, or it's the last one, it's the end of the line part
			if ((segment[1] !== points[i + 1]) || (i === len - 2)) {
				parts[k].push(segment[1]);
				k++;
			}
		}
	},

	// simplify each clipped part of the polyline
	_simplifyPoints: function () {
		var parts = this._parts,
			lu = L.LineUtil;

		for (var i = 0, len = parts.length; i < len; i++) {
			parts[i] = lu.simplify(parts[i], this.options.smoothFactor);
		}
	},

	_updatePath: function () {
		if (!this._map) { return; }

		this._clipPoints();
		this._simplifyPoints();

		L.Path.prototype._updatePath.call(this);
	}
});

L.polyline = function (latlngs, options) {
	return new L.Polyline(latlngs, options);
};


/*
 * L.PolyUtil contains utilify functions for polygons (clipping, etc.).
 */

/*jshint bitwise:false */ // allow bitwise oprations here

L.PolyUtil = {};

/*
 * Sutherland-Hodgeman polygon clipping algorithm.
 * Used to avoid rendering parts of a polygon that are not currently visible.
 */
L.PolyUtil.clipPolygon = function (points, bounds) {
	var min = bounds.min,
		max = bounds.max,
		clippedPoints,
		edges = [1, 4, 2, 8],
		i, j, k,
		a, b,
		len, edge, p,
		lu = L.LineUtil;

	for (i = 0, len = points.length; i < len; i++) {
		points[i]._code = lu._getBitCode(points[i], bounds);
	}

	// for each edge (left, bottom, right, top)
	for (k = 0; k < 4; k++) {
		edge = edges[k];
		clippedPoints = [];

		for (i = 0, len = points.length, j = len - 1; i < len; j = i++) {
			a = points[i];
			b = points[j];

			// if a is inside the clip window
			if (!(a._code & edge)) {
				// if b is outside the clip window (a->b goes out of screen)
				if (b._code & edge) {
					p = lu._getEdgeIntersection(b, a, edge, bounds);
					p._code = lu._getBitCode(p, bounds);
					clippedPoints.push(p);
				}
				clippedPoints.push(a);

			// else if b is inside the clip window (a->b enters the screen)
			} else if (!(b._code & edge)) {
				p = lu._getEdgeIntersection(b, a, edge, bounds);
				p._code = lu._getBitCode(p, bounds);
				clippedPoints.push(p);
			}
		}
		points = clippedPoints;
	}

	return points;
};

/*jshint bitwise:true */


/*
 * L.Polygon is used to display polygons on a map.
 */

L.Polygon = L.Polyline.extend({
	options: {
		fill: true
	},

	initialize: function (latlngs, options) {
		L.Polyline.prototype.initialize.call(this, latlngs, options);

		if (latlngs && (latlngs[0] instanceof Array) && (typeof latlngs[0][0] !== 'number')) {
			this._latlngs = this._convertLatLngs(latlngs[0]);
			this._holes = latlngs.slice(1);
		}
	},

	projectLatlngs: function () {
		L.Polyline.prototype.projectLatlngs.call(this);

		// project polygon holes points
		// TODO move this logic to Polyline to get rid of duplication
		this._holePoints = [];

		if (!this._holes) {
			return;
		}

		for (var i = 0, len = this._holes.length, hole; i < len; i++) {
			this._holePoints[i] = [];

			for (var j = 0, len2 = this._holes[i].length; j < len2; j++) {
				this._holePoints[i][j] = this._map.latLngToLayerPoint(this._holes[i][j]);
			}
		}
	},

	_clipPoints: function () {
		var points = this._originalPoints,
			newParts = [];

		this._parts = [points].concat(this._holePoints);

		if (this.options.noClip) {
			return;
		}

		for (var i = 0, len = this._parts.length; i < len; i++) {
			var clipped = L.PolyUtil.clipPolygon(this._parts[i], this._map._pathViewport);
			if (!clipped.length) {
				continue;
			}
			newParts.push(clipped);
		}

		this._parts = newParts;
	},

	_getPathPartStr: function (points) {
		var str = L.Polyline.prototype._getPathPartStr.call(this, points);
		return str + (L.Browser.svg ? 'z' : 'x');
	}
});

L.polygon = function (latlngs, options) {
	return new L.Polygon(latlngs, options);
};


/*
 * Contains L.MultiPolyline and L.MultiPolygon layers.
 */

(function () {
	function createMulti(Klass) {
		return L.FeatureGroup.extend({
			initialize: function (latlngs, options) {
				this._layers = {};
				this._options = options;
				this.setLatLngs(latlngs);
			},

			setLatLngs: function (latlngs) {
				var i = 0, len = latlngs.length;

				this.eachLayer(function (layer) {
					if (i < len) {
						layer.setLatLngs(latlngs[i++]);
					} else {
						this.removeLayer(layer);
					}
				}, this);

				while (i < len) {
					this.addLayer(new Klass(latlngs[i++], this._options));
				}

				return this;
			}
		});
	}

	L.MultiPolyline = createMulti(L.Polyline);
	L.MultiPolygon = createMulti(L.Polygon);

	L.multiPolyline = function (latlngs, options) {
		return new L.MultiPolyline(latlngs, options);
	};

	L.multiPolygon = function (latlngs, options) {
		return new L.MultiPolygon(latlngs, options);
	};
}());


/*
 * L.Rectangle extends Polygon and creates a rectangle when passed a LatLngBounds
 */

L.Rectangle = L.Polygon.extend({
	initialize: function (latLngBounds, options) {
		L.Polygon.prototype.initialize.call(this, this._boundsToLatLngs(latLngBounds), options);
	},

	setBounds: function (latLngBounds) {
		this.setLatLngs(this._boundsToLatLngs(latLngBounds));
	},

	_boundsToLatLngs: function (latLngBounds) {
		latLngBounds = L.latLngBounds(latLngBounds);
	    return [
	        latLngBounds.getSouthWest(),
	        latLngBounds.getNorthWest(),
	        latLngBounds.getNorthEast(),
	        latLngBounds.getSouthEast(),
	        latLngBounds.getSouthWest()
	    ];
	}
});

L.rectangle = function (latLngBounds, options) {
	return new L.Rectangle(latLngBounds, options);
};


/*
 * L.Circle is a circle overlay (with a certain radius in meters).
 */

L.Circle = L.Path.extend({
	initialize: function (latlng, radius, options) {
		L.Path.prototype.initialize.call(this, options);

		this._latlng = L.latLng(latlng);
		this._mRadius = radius;
	},

	options: {
		fill: true
	},

	setLatLng: function (latlng) {
		this._latlng = L.latLng(latlng);
		return this.redraw();
	},

	setRadius: function (radius) {
		this._mRadius = radius;
		return this.redraw();
	},

	projectLatlngs: function () {
		var lngRadius = this._getLngRadius(),
			latlng2 = new L.LatLng(this._latlng.lat, this._latlng.lng - lngRadius, true),
			point2 = this._map.latLngToLayerPoint(latlng2);

		this._point = this._map.latLngToLayerPoint(this._latlng);
		this._radius = Math.max(Math.round(this._point.x - point2.x), 1);
	},

	getBounds: function () {
		var map = this._map,
			delta = this._radius * Math.cos(Math.PI / 4),
			point = map.project(this._latlng),
			swPoint = new L.Point(point.x - delta, point.y + delta),
			nePoint = new L.Point(point.x + delta, point.y - delta),
			sw = map.unproject(swPoint),
			ne = map.unproject(nePoint);

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

	getLatLng: function () {
		return this._latlng;
	},

	getPathString: function () {
		var p = this._point,
			r = this._radius;

		if (this._checkIfEmpty()) {
			return '';
		}

		if (L.Browser.svg) {
			return "M" + p.x + "," + (p.y - r) +
					"A" + r + "," + r + ",0,1,1," +
					(p.x - 0.1) + "," + (p.y - r) + " z";
		} else {
			p._round();
			r = Math.round(r);
			return "AL " + p.x + "," + p.y + " " + r + "," + r + " 0," + (65535 * 360);
		}
	},

	getRadius: function () {
		return this._mRadius;
	},

	_getLngRadius: function () {
		var equatorLength = 40075017,
			hLength = equatorLength * Math.cos(L.LatLng.DEG_TO_RAD * this._latlng.lat);

		return (this._mRadius / hLength) * 360;
	},

	_checkIfEmpty: function () {
		if (!this._map) {
			return false;
		}
		var vp = this._map._pathViewport,
			r = this._radius,
			p = this._point;

		return p.x - r > vp.max.x || p.y - r > vp.max.y ||
			p.x + r < vp.min.x || p.y + r < vp.min.y;
	}
});

L.circle = function (latlng, radius, options) {
	return new L.Circle(latlng, radius, options);
};


/*
 * L.CircleMarker is a circle overlay with a permanent pixel radius.
 */

L.CircleMarker = L.Circle.extend({
	options: {
		radius: 10,
		weight: 2
	},

	initialize: function (latlng, options) {
		L.Circle.prototype.initialize.call(this, latlng, null, options);
		this._radius = this.options.radius;
	},

	projectLatlngs: function () {
		this._point = this._map.latLngToLayerPoint(this._latlng);
	},

	setRadius: function (radius) {
		this._radius = radius;
		return this.redraw();
	}
});

L.circleMarker = function (latlng, options) {
	return new L.CircleMarker(latlng, options);
};



L.Polyline.include(!L.Path.CANVAS ? {} : {
	_containsPoint: function (p, closed) {
		var i, j, k, len, len2, dist, part,
			w = this.options.weight / 2;

		if (L.Browser.touch) {
			w += 10; // polyline click tolerance on touch devices
		}

		for (i = 0, len = this._parts.length; i < len; i++) {
			part = this._parts[i];
			for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {
				if (!closed && (j === 0)) {
					continue;
				}

				dist = L.LineUtil.pointToSegmentDistance(p, part[k], part[j]);

				if (dist <= w) {
					return true;
				}
			}
		}
		return false;
	}
});



L.Polygon.include(!L.Path.CANVAS ? {} : {
	_containsPoint: function (p) {
		var inside = false,
			part, p1, p2,
			i, j, k,
			len, len2;

		// TODO optimization: check if within bounds first

		if (L.Polyline.prototype._containsPoint.call(this, p, true)) {
			// click on polygon border
			return true;
		}

		// ray casting algorithm for detecting if point is in polygon

		for (i = 0, len = this._parts.length; i < len; i++) {
			part = this._parts[i];

			for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {
				p1 = part[j];
				p2 = part[k];

				if (((p1.y > p.y) !== (p2.y > p.y)) &&
						(p.x < (p2.x - p1.x) * (p.y - p1.y) / (p2.y - p1.y) + p1.x)) {
					inside = !inside;
				}
			}
		}

		return inside;
	}
});


/*
 * Circle canvas specific drawing parts.
 */

L.Circle.include(!L.Path.CANVAS ? {} : {
	_drawPath: function () {
		var p = this._point;
		this._ctx.beginPath();
		this._ctx.arc(p.x, p.y, this._radius, 0, Math.PI * 2, false);
	},

	_containsPoint: function (p) {
		var center = this._point,
			w2 = this.options.stroke ? this.options.weight / 2 : 0;

		return (p.distanceTo(center) <= this._radius + w2);
	}
});


L.GeoJSON = L.FeatureGroup.extend({
	initialize: function (geojson, options) {
		L.Util.setOptions(this, options);

		this._layers = {};

		if (geojson) {
			this.addData(geojson);
		}
	},

	addData: function (geojson) {
		var features = geojson instanceof Array ? geojson : geojson.features,
		    i, len;

		if (features) {
			for (i = 0, len = features.length; i < len; i++) {
				this.addData(features[i]);
			}
			return this;
		}

		var options = this.options,
		    style = options.style;

		if (options.filter && !options.filter(geojson)) { return; }

		var layer = L.GeoJSON.geometryToLayer(geojson, options.pointToLayer);

		if (style) {
			if (typeof style === 'function') {
				style = style(geojson);
			}
			if (layer.setStyle) {
				layer.setStyle(style);
			}
		}

		if (options.onEachFeature) {
			options.onEachFeature(geojson, layer);
		}

		return this.addLayer(layer);
	}
});

L.Util.extend(L.GeoJSON, {
	geometryToLayer: function (geojson, pointToLayer) {
		var geometry = geojson.type === 'Feature' ? geojson.geometry : geojson,
		    coords = geometry.coordinates,
		    layers = [],
		    latlng, latlngs, i, len, layer;

		switch (geometry.type) {
		case 'Point':
			latlng = this.coordsToLatLng(coords);
			return pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng);

		case 'MultiPoint':
			for (i = 0, len = coords.length; i < len; i++) {
				latlng = this.coordsToLatLng(coords[i]);
				layer = pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng);
				layers.push(layer);
			}
			return new L.FeatureGroup(layers);

		case 'LineString':
			latlngs = this.coordsToLatLngs(coords);
			return new L.Polyline(latlngs);

		case 'Polygon':
			latlngs = this.coordsToLatLngs(coords, 1);
			return new L.Polygon(latlngs);

		case 'MultiLineString':
			latlngs = this.coordsToLatLngs(coords, 1);
			return new L.MultiPolyline(latlngs);

		case "MultiPolygon":
			latlngs = this.coordsToLatLngs(coords, 2);
			return new L.MultiPolygon(latlngs);

		case "GeometryCollection":
			for (i = 0, len = geometry.geometries.length; i < len; i++) {
				layer = this.geometryToLayer(geometry.geometries[i], pointToLayer);
				layers.push(layer);
			}
			return new L.FeatureGroup(layers);

		default:
			throw new Error('Invalid GeoJSON object.');
		}
	},

	coordsToLatLng: function (coords, reverse) { // (Array, Boolean) -> LatLng
		var lat = parseFloat(coords[reverse ? 0 : 1]),
		    lng = parseFloat(coords[reverse ? 1 : 0]);

		return new L.LatLng(lat, lng, true);
	},

	coordsToLatLngs: function (coords, levelsDeep, reverse) { // (Array, Number, Boolean) -> Array
		var latlng,
		    latlngs = [],
		    i, len;

		for (i = 0, len = coords.length; i < len; i++) {
			latlng = levelsDeep ?
					this.coordsToLatLngs(coords[i], levelsDeep - 1, reverse) :
					this.coordsToLatLng(coords[i], reverse);

			latlngs.push(latlng);
		}

		return latlngs;
	}
});

L.geoJson = function (geojson, options) {
	return new L.GeoJSON(geojson, options);
};

/*
 * L.DomEvent contains functions for working with DOM events.
 */

L.DomEvent = {
	/* inpired by John Resig, Dean Edwards and YUI addEvent implementations */
	addListener: function (obj, type, fn, context) { // (HTMLElement, String, Function[, Object])

		var id = L.Util.stamp(fn),
			key = '_leaflet_' + type + id,
			handler, originalHandler, newType;

		if (obj[key]) { return this; }

		handler = function (e) {
			return fn.call(context || obj, e || L.DomEvent._getEvent());
		};

		if (L.Browser.touch && (type === 'dblclick') && this.addDoubleTapListener) {
			return this.addDoubleTapListener(obj, handler, id);

		} else if ('addEventListener' in obj) {
			
			if (type === 'mousewheel') {
				obj.addEventListener('DOMMouseScroll', handler, false);
				obj.addEventListener(type, handler, false);

			} else if ((type === 'mouseenter') || (type === 'mouseleave')) {

				originalHandler = handler;
				newType = (type === 'mouseenter' ? 'mouseover' : 'mouseout');

				handler = function (e) {
					if (!L.DomEvent._checkMouse(obj, e)) { return; }
					return originalHandler(e);
				};

				obj.addEventListener(newType, handler, false);

			} else {
				obj.addEventListener(type, handler, false);
			}

		} else if ('attachEvent' in obj) {
			obj.attachEvent("on" + type, handler);
		}

		obj[key] = handler;

		return this;
	},

	removeListener: function (obj, type, fn) {  // (HTMLElement, String, Function)

		var id = L.Util.stamp(fn),
			key = '_leaflet_' + type + id,
			handler = obj[key];

		if (!handler) { return; }

		if (L.Browser.touch && (type === 'dblclick') && this.removeDoubleTapListener) {
			this.removeDoubleTapListener(obj, id);

		} else if ('removeEventListener' in obj) {

			if (type === 'mousewheel') {
				obj.removeEventListener('DOMMouseScroll', handler, false);
				obj.removeEventListener(type, handler, false);

			} else if ((type === 'mouseenter') || (type === 'mouseleave')) {
				obj.removeEventListener((type === 'mouseenter' ? 'mouseover' : 'mouseout'), handler, false);
			} else {
				obj.removeEventListener(type, handler, false);
			}
		} else if ('detachEvent' in obj) {
			obj.detachEvent("on" + type, handler);
		}

		obj[key] = null;

		return this;
	},

	stopPropagation: function (e) {

		if (e.stopPropagation) {
			e.stopPropagation();
		} else {
			e.cancelBubble = true;
		}
		return this;
	},

	disableClickPropagation: function (el) {

		var stop = L.DomEvent.stopPropagation;
		
		return L.DomEvent
			.addListener(el, L.Draggable.START, stop)
			.addListener(el, 'click', stop)
			.addListener(el, 'dblclick', stop);
	},

	preventDefault: function (e) {

		if (e.preventDefault) {
			e.preventDefault();
		} else {
			e.returnValue = false;
		}
		return this;
	},

	stop: function (e) {
		return L.DomEvent.preventDefault(e).stopPropagation(e);
	},

	getMousePosition: function (e, container) {

		var body = document.body,
			docEl = document.documentElement,
			x = e.pageX ? e.pageX : e.clientX + body.scrollLeft + docEl.scrollLeft,
			y = e.pageY ? e.pageY : e.clientY + body.scrollTop + docEl.scrollTop,
			pos = new L.Point(x, y);

		return (container ? pos._subtract(L.DomUtil.getViewportOffset(container)) : pos);
	},

	getWheelDelta: function (e) {

		var delta = 0;

		if (e.wheelDelta) {
			delta = e.wheelDelta / 120;
		}
		if (e.detail) {
			delta = -e.detail / 3;
		}
		return delta;
	},

	// check if element really left/entered the event target (for mouseenter/mouseleave)
	_checkMouse: function (el, e) {

		var related = e.relatedTarget;

		if (!related) { return true; }

		try {
			while (related && (related !== el)) {
				related = related.parentNode;
			}
		} catch (err) {
			return false;
		}
		return (related !== el);
	},

	/*jshint noarg:false */
	_getEvent: function () { // evil magic for IE

		var e = window.event;
		if (!e) {
			var caller = arguments.callee.caller;
			while (caller) {
				e = caller['arguments'][0];
				if (e && window.Event === e.constructor) {
					break;
				}
				caller = caller.caller;
			}
		}
		return e;
	}
	/*jshint noarg:false */
};

L.DomEvent.on = L.DomEvent.addListener;
L.DomEvent.off = L.DomEvent.removeListener;

/*
 * L.Draggable allows you to add dragging capabilities to any element. Supports mobile devices too.
 */

L.Draggable = L.Class.extend({
	includes: L.Mixin.Events,

	statics: {
		START: L.Browser.touch ? 'touchstart' : 'mousedown',
		END: L.Browser.touch ? 'touchend' : 'mouseup',
		MOVE: L.Browser.touch ? 'touchmove' : 'mousemove',
		TAP_TOLERANCE: 15
	},

	initialize: function (element, dragStartTarget) {
		this._element = element;
		this._dragStartTarget = dragStartTarget || element;
	},

	enable: function () {
		if (this._enabled) {
			return;
		}
		L.DomEvent.on(this._dragStartTarget, L.Draggable.START, this._onDown, this);
		this._enabled = true;
	},

	disable: function () {
		if (!this._enabled) {
			return;
		}
		L.DomEvent.off(this._dragStartTarget, L.Draggable.START, this._onDown);
		this._enabled = false;
		this._moved = false;
	},

	_onDown: function (e) {
		if ((!L.Browser.touch && e.shiftKey) || ((e.which !== 1) && (e.button !== 1) && !e.touches)) {
			return;
		}

		this._simulateClick = true;

		if (e.touches && e.touches.length > 1) {
			this._simulateClick = false;
			return;
		}

		var first = (e.touches && e.touches.length === 1 ? e.touches[0] : e),
			el = first.target;

		L.DomEvent.preventDefault(e);

		if (L.Browser.touch && el.tagName.toLowerCase() === 'a') {
			L.DomUtil.addClass(el, 'leaflet-active');
		}

		this._moved = false;
		if (this._moving) {
			return;
		}

		this._startPos = this._newPos = L.DomUtil.getPosition(this._element);
		this._startPoint = new L.Point(first.clientX, first.clientY);

		L.DomEvent.on(document, L.Draggable.MOVE, this._onMove, this);
		L.DomEvent.on(document, L.Draggable.END, this._onUp, this);
	},

	_onMove: function (e) {
		if (e.touches && e.touches.length > 1) { return; }

		var first = (e.touches && e.touches.length === 1 ? e.touches[0] : e),
			newPoint = new L.Point(first.clientX, first.clientY),
			diffVec = newPoint.subtract(this._startPoint);

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

		L.DomEvent.preventDefault(e);

		if (!this._moved) {
			this.fire('dragstart');
			this._moved = true;

			if (!L.Browser.touch) {
				L.DomUtil.disableTextSelection();
				this._setMovingCursor();
			}
		}

		this._newPos = this._startPos.add(diffVec);
		this._moving = true;

		L.Util.cancelAnimFrame(this._animRequest);
		this._animRequest = L.Util.requestAnimFrame(this._updatePosition, this, true, this._dragStartTarget);
	},

	_updatePosition: function () {
		this.fire('predrag');
		L.DomUtil.setPosition(this._element, this._newPos);
		this.fire('drag');
	},

	_onUp: function (e) {
		if (this._simulateClick && e.changedTouches) {
			var first = e.changedTouches[0],
				el = first.target,
				dist = (this._newPos && this._newPos.distanceTo(this._startPos)) || 0;

			if (el.tagName.toLowerCase() === 'a') {
				L.DomUtil.removeClass(el, 'leaflet-active');
			}

			if (dist < L.Draggable.TAP_TOLERANCE) {
				this._simulateEvent('click', first);
			}
		}

		if (!L.Browser.touch) {
			L.DomUtil.enableTextSelection();
			this._restoreCursor();
		}

		L.DomEvent.off(document, L.Draggable.MOVE, this._onMove);
		L.DomEvent.off(document, L.Draggable.END, this._onUp);

		if (this._moved) {
			// ensure drag is not fired after dragend
			L.Util.cancelAnimFrame(this._animRequest);

			this.fire('dragend');
		}
		this._moving = false;
	},

	_setMovingCursor: function () {
		L.DomUtil.addClass(document.body, 'leaflet-dragging');
	},

	_restoreCursor: function () {
		L.DomUtil.removeClass(document.body, 'leaflet-dragging');
	},

	_simulateEvent: function (type, e) {
		var simulatedEvent = document.createEvent('MouseEvents');

		simulatedEvent.initMouseEvent(
				type, true, true, window, 1,
				e.screenX, e.screenY,
				e.clientX, e.clientY,
				false, false, false, false, 0, null);

		e.target.dispatchEvent(simulatedEvent);
	}
});


/*
 * L.Handler classes are used internally to inject interaction features to classes like Map and Marker.
 */

L.Handler = L.Class.extend({
	initialize: function (map) {
		this._map = map;
	},

	enable: function () {
		if (this._enabled) { return; }

		this._enabled = true;
		this.addHooks();
	},

	disable: function () {
		if (!this._enabled) { return; }

		this._enabled = false;
		this.removeHooks();
	},

	enabled: function () {
		return !!this._enabled;
	}
});


/*
 * L.Handler.MapDrag is used internally by L.Map to make the map draggable.
 */

L.Map.mergeOptions({
	dragging: true,

	inertia: !L.Browser.android23,
	inertiaDeceleration: 3000, // px/s^2
	inertiaMaxSpeed: 1500, // px/s
	inertiaThreshold: L.Browser.touch ? 32 : 14, // ms

	// TODO refactor, move to CRS
	worldCopyJump: true
});

L.Map.Drag = L.Handler.extend({
	addHooks: function () {
		if (!this._draggable) {
			this._draggable = new L.Draggable(this._map._mapPane, this._map._container);

			this._draggable.on({
				'dragstart': this._onDragStart,
				'drag': this._onDrag,
				'dragend': this._onDragEnd
			}, this);

			var options = this._map.options;

			if (options.worldCopyJump) {
				this._draggable.on('predrag', this._onPreDrag, this);
				this._map.on('viewreset', this._onViewReset, this);
			}
		}
		this._draggable.enable();
	},

	removeHooks: function () {
		this._draggable.disable();
	},

	moved: function () {
		return this._draggable && this._draggable._moved;
	},

	_onDragStart: function () {
		var map = this._map;

		map
			.fire('movestart')
			.fire('dragstart');

		if (map._panTransition) {
			map._panTransition._onTransitionEnd(true);
		}

		if (map.options.inertia) {
			this._positions = [];
			this._times = [];
		}
	},

	_onDrag: function () {
		if (this._map.options.inertia) {
			var time = this._lastTime = +new Date(),
			    pos = this._lastPos = this._draggable._newPos;

			this._positions.push(pos);
			this._times.push(time);

			if (time - this._times[0] > 200) {
				this._positions.shift();
				this._times.shift();
			}
		}

		this._map
			.fire('move')
			.fire('drag');
	},

	_onViewReset: function () {
		var pxCenter = this._map.getSize().divideBy(2),
			pxWorldCenter = this._map.latLngToLayerPoint(new L.LatLng(0, 0));

		this._initialWorldOffset = pxWorldCenter.subtract(pxCenter).x;
		this._worldWidth = this._map.project(new L.LatLng(0, 180)).x;
	},

	_onPreDrag: function () {
		// TODO refactor to be able to adjust map pane position after zoom
		var map = this._map,
			worldWidth = this._worldWidth,
			halfWidth = Math.round(worldWidth / 2),
			dx = this._initialWorldOffset,
			x = this._draggable._newPos.x,
			newX1 = (x - halfWidth + dx) % worldWidth + halfWidth - dx,
			newX2 = (x + halfWidth + dx) % worldWidth - halfWidth - dx,
			newX = Math.abs(newX1 + dx) < Math.abs(newX2 + dx) ? newX1 : newX2;

		this._draggable._newPos.x = newX;
	},

	_onDragEnd: function () {
		var map = this._map,
			options = map.options,
			delay = +new Date() - this._lastTime,

			noInertia = !options.inertia ||
					delay > options.inertiaThreshold ||
					this._positions[0] === undefined;

		if (noInertia) {
			map.fire('moveend');

		} else {

			var direction = this._lastPos.subtract(this._positions[0]),
				duration = (this._lastTime + delay - this._times[0]) / 1000,

				speedVector = direction.multiplyBy(0.58 / duration),
				speed = speedVector.distanceTo(new L.Point(0, 0)),

				limitedSpeed = Math.min(options.inertiaMaxSpeed, speed),
				limitedSpeedVector = speedVector.multiplyBy(limitedSpeed / speed),

				decelerationDuration = limitedSpeed / options.inertiaDeceleration,
				offset = limitedSpeedVector.multiplyBy(-decelerationDuration / 2).round();

			var panOptions = {
				duration: decelerationDuration,
				easing: 'ease-out'
			};

			L.Util.requestAnimFrame(L.Util.bind(function () {
				this._map.panBy(offset, panOptions);
			}, this));
		}

		map.fire('dragend');

		if (options.maxBounds) {
			// TODO predrag validation instead of animation
			L.Util.requestAnimFrame(this._panInsideMaxBounds, map, true, map._container);
		}
	},

	_panInsideMaxBounds: function () {
		this.panInsideBounds(this.options.maxBounds);
	}
});

L.Map.addInitHook('addHandler', 'dragging', L.Map.Drag);


/*
 * L.Handler.DoubleClickZoom is used internally by L.Map to add double-click zooming.
 */

L.Map.mergeOptions({
	doubleClickZoom: true
});

L.Map.DoubleClickZoom = L.Handler.extend({
	addHooks: function () {
		this._map.on('dblclick', this._onDoubleClick);
	},

	removeHooks: function () {
		this._map.off('dblclick', this._onDoubleClick);
	},

	_onDoubleClick: function (e) {
		this.setView(e.latlng, this._zoom + 1);
	}
});

L.Map.addInitHook('addHandler', 'doubleClickZoom', L.Map.DoubleClickZoom);

/*
 * L.Handler.ScrollWheelZoom is used internally by L.Map to enable mouse scroll wheel zooming on the map.
 */

L.Map.mergeOptions({
	scrollWheelZoom: !L.Browser.touch
});

L.Map.ScrollWheelZoom = L.Handler.extend({
	addHooks: function () {
		L.DomEvent.on(this._map._container, 'mousewheel', this._onWheelScroll, this);
		this._delta = 0;
	},

	removeHooks: function () {
		L.DomEvent.off(this._map._container, 'mousewheel', this._onWheelScroll);
	},

	_onWheelScroll: function (e) {
		var delta = L.DomEvent.getWheelDelta(e);

		this._delta += delta;
		this._lastMousePos = this._map.mouseEventToContainerPoint(e);

		clearTimeout(this._timer);
		this._timer = setTimeout(L.Util.bind(this._performZoom, this), 40);

		L.DomEvent.preventDefault(e);
	},

	_performZoom: function () {
		var map = this._map,
			delta = Math.round(this._delta),
			zoom = map.getZoom();

		delta = Math.max(Math.min(delta, 4), -4);
		delta = map._limitZoom(zoom + delta) - zoom;

		this._delta = 0;

		if (!delta) { return; }

		var newZoom = zoom + delta,
			newCenter = this._getCenterForScrollWheelZoom(this._lastMousePos, newZoom);

		map.setView(newCenter, newZoom);
	},

	_getCenterForScrollWheelZoom: function (mousePos, newZoom) {
		var map = this._map,
			scale = map.getZoomScale(newZoom),
			viewHalf = map.getSize().divideBy(2),
			centerOffset = mousePos.subtract(viewHalf).multiplyBy(1 - 1 / scale),
			newCenterPoint = map._getTopLeftPoint().add(viewHalf).add(centerOffset);

		return map.unproject(newCenterPoint);
	}
});

L.Map.addInitHook('addHandler', 'scrollWheelZoom', L.Map.ScrollWheelZoom);


L.Util.extend(L.DomEvent, {
	// inspired by Zepto touch code by Thomas Fuchs
	addDoubleTapListener: function (obj, handler, id) {
		var last,
			doubleTap = false,
			delay = 250,
			touch,
			pre = '_leaflet_',
			touchstart = 'touchstart',
			touchend = 'touchend';

		function onTouchStart(e) {
			if (e.touches.length !== 1) {
				return;
			}

			var now = Date.now(),
				delta = now - (last || now);

			touch = e.touches[0];
			doubleTap = (delta > 0 && delta <= delay);
			last = now;
		}
		function onTouchEnd(e) {
			if (doubleTap) {
				touch.type = 'dblclick';
				handler(touch);
				last = null;
			}
		}
		obj[pre + touchstart + id] = onTouchStart;
		obj[pre + touchend + id] = onTouchEnd;

		obj.addEventListener(touchstart, onTouchStart, false);
		obj.addEventListener(touchend, onTouchEnd, false);
		return this;
	},

	removeDoubleTapListener: function (obj, id) {
		var pre = '_leaflet_';
		obj.removeEventListener(obj, obj[pre + 'touchstart' + id], false);
		obj.removeEventListener(obj, obj[pre + 'touchend' + id], false);
		return this;
	}
});


/*
 * L.Handler.TouchZoom is used internally by L.Map to add touch-zooming on Webkit-powered mobile browsers.
 */

L.Map.mergeOptions({
	touchZoom: L.Browser.touch && !L.Browser.android23
});

L.Map.TouchZoom = L.Handler.extend({
	addHooks: function () {
		L.DomEvent.on(this._map._container, 'touchstart', this._onTouchStart, this);
	},

	removeHooks: function () {
		L.DomEvent.off(this._map._container, 'touchstart', this._onTouchStart, this);
	},

	_onTouchStart: function (e) {
		var map = this._map;

		if (!e.touches || e.touches.length !== 2 || map._animatingZoom || this._zooming) { return; }

		var p1 = map.mouseEventToLayerPoint(e.touches[0]),
			p2 = map.mouseEventToLayerPoint(e.touches[1]),
			viewCenter = map._getCenterLayerPoint();

		this._startCenter = p1.add(p2).divideBy(2, true);
		this._startDist = p1.distanceTo(p2);

		this._moved = false;
		this._zooming = true;

		this._centerOffset = viewCenter.subtract(this._startCenter);

		L.DomEvent
			.on(document, 'touchmove', this._onTouchMove, this)
			.on(document, 'touchend', this._onTouchEnd, this);

		L.DomEvent.preventDefault(e);
	},

	_onTouchMove: function (e) {
		if (!e.touches || e.touches.length !== 2) { return; }

		var map = this._map;

		var p1 = map.mouseEventToLayerPoint(e.touches[0]),
			p2 = map.mouseEventToLayerPoint(e.touches[1]);

		this._scale = p1.distanceTo(p2) / this._startDist;
		this._delta = p1.add(p2).divideBy(2, true).subtract(this._startCenter);

		if (this._scale === 1) { return; }

		if (!this._moved) {
			L.DomUtil.addClass(map._mapPane, 'leaflet-zoom-anim leaflet-touching');

			map
				.fire('movestart')
				.fire('zoomstart')
				._prepareTileBg();

			this._moved = true;
		}

		L.Util.cancelAnimFrame(this._animRequest);
		this._animRequest = L.Util.requestAnimFrame(this._updateOnMove, this, true, this._map._container);

		L.DomEvent.preventDefault(e);
	},

	_updateOnMove: function () {
		var map = this._map,
			origin = this._getScaleOrigin(),
			center = map.layerPointToLatLng(origin);

		map.fire('zoomanim', {
			center: center,
			zoom: map.getScaleZoom(this._scale)
		});

		// Used 2 translates instead of transform-origin because of a very strange bug -
		// it didn't count the origin on the first touch-zoom but worked correctly afterwards

		map._tileBg.style[L.DomUtil.TRANSFORM] =
			L.DomUtil.getTranslateString(this._delta) + ' ' +
			L.DomUtil.getScaleString(this._scale, this._startCenter);
	},

	_onTouchEnd: function (e) {
		if (!this._moved || !this._zooming) { return; }

		var map = this._map;

		this._zooming = false;
		L.DomUtil.removeClass(map._mapPane, 'leaflet-touching');

		L.DomEvent
			.off(document, 'touchmove', this._onTouchMove)
			.off(document, 'touchend', this._onTouchEnd);

		var origin = this._getScaleOrigin(),
			center = map.layerPointToLatLng(origin),

			oldZoom = map.getZoom(),
			floatZoomDelta = map.getScaleZoom(this._scale) - oldZoom,
			roundZoomDelta = (floatZoomDelta > 0 ? Math.ceil(floatZoomDelta) : Math.floor(floatZoomDelta)),
			zoom = map._limitZoom(oldZoom + roundZoomDelta);

		map.fire('zoomanim', {
			center: center,
			zoom: zoom
		});

		map._runAnimation(center, zoom, map.getZoomScale(zoom) / this._scale, origin, true);
	},

	_getScaleOrigin: function () {
		var centerOffset = this._centerOffset.subtract(this._delta).divideBy(this._scale);
		return this._startCenter.add(centerOffset);
	}
});

L.Map.addInitHook('addHandler', 'touchZoom', L.Map.TouchZoom);


/*
 * L.Handler.ShiftDragZoom is used internally by L.Map to add shift-drag zoom (zoom to a selected bounding box).
 */

L.Map.mergeOptions({
	boxZoom: true
});

L.Map.BoxZoom = L.Handler.extend({
	initialize: function (map) {
		this._map = map;
		this._container = map._container;
		this._pane = map._panes.overlayPane;
	},

	addHooks: function () {
		L.DomEvent.on(this._container, 'mousedown', this._onMouseDown, this);
	},

	removeHooks: function () {
		L.DomEvent.off(this._container, 'mousedown', this._onMouseDown);
	},

	_onMouseDown: function (e) {
		if (!e.shiftKey || ((e.which !== 1) && (e.button !== 1))) { return false; }

		L.DomUtil.disableTextSelection();

		this._startLayerPoint = this._map.mouseEventToLayerPoint(e);

		this._box = L.DomUtil.create('div', 'leaflet-zoom-box', this._pane);
		L.DomUtil.setPosition(this._box, this._startLayerPoint);

		//TODO refactor: move cursor to styles
		this._container.style.cursor = 'crosshair';

		L.DomEvent
			.on(document, 'mousemove', this._onMouseMove, this)
			.on(document, 'mouseup', this._onMouseUp, this)
			.preventDefault(e);
			
		this._map.fire("boxzoomstart");
	},

	_onMouseMove: function (e) {
		var startPoint = this._startLayerPoint,
			box = this._box,

			layerPoint = this._map.mouseEventToLayerPoint(e),
			offset = layerPoint.subtract(startPoint),

			newPos = new L.Point(
				Math.min(layerPoint.x, startPoint.x),
				Math.min(layerPoint.y, startPoint.y));

		L.DomUtil.setPosition(box, newPos);

		// TODO refactor: remove hardcoded 4 pixels
		box.style.width  = (Math.abs(offset.x) - 4) + 'px';
		box.style.height = (Math.abs(offset.y) - 4) + 'px';
	},

	_onMouseUp: function (e) {
		this._pane.removeChild(this._box);
		this._container.style.cursor = '';

		L.DomUtil.enableTextSelection();

		L.DomEvent
			.off(document, 'mousemove', this._onMouseMove)
			.off(document, 'mouseup', this._onMouseUp);

		var map = this._map,
			layerPoint = map.mouseEventToLayerPoint(e);

		var bounds = new L.LatLngBounds(
				map.layerPointToLatLng(this._startLayerPoint),
				map.layerPointToLatLng(layerPoint));

		map.fitBounds(bounds);
		
		map.fire("boxzoomend", {
			boxZoomBounds: bounds
		});
	}
});

L.Map.addInitHook('addHandler', 'boxZoom', L.Map.BoxZoom);


L.Map.mergeOptions({
	keyboard: true,
	keyboardPanOffset: 80,
	keyboardZoomOffset: 1
});

L.Map.Keyboard = L.Handler.extend({

	// list of e.keyCode values for particular actions
	keyCodes: {
		left:    [37],
		right:   [39],
		down:    [40],
		up:      [38],
		zoomIn:  [187, 61, 107],
		zoomOut: [189, 109, 0]
	},

	initialize: function (map) {
		this._map = map;

		this._setPanOffset(map.options.keyboardPanOffset);
		this._setZoomOffset(map.options.keyboardZoomOffset);
	},

	addHooks: function () {
		var container = this._map._container;

		// make the container focusable by tabbing
		if (container.tabIndex === -1) {
			container.tabIndex = "0";
		}

		L.DomEvent
			.addListener(container, 'focus', this._onFocus, this)
			.addListener(container, 'blur', this._onBlur, this)
			.addListener(container, 'mousedown', this._onMouseDown, this);

		this._map
			.on('focus', this._addHooks, this)
			.on('blur', this._removeHooks, this);
	},

	removeHooks: function () {
		this._removeHooks();

		var container = this._map._container;
		L.DomEvent
			.removeListener(container, 'focus', this._onFocus, this)
			.removeListener(container, 'blur', this._onBlur, this)
			.removeListener(container, 'mousedown', this._onMouseDown, this);

		this._map
			.off('focus', this._addHooks, this)
			.off('blur', this._removeHooks, this);
	},

	_onMouseDown: function () {
		if (!this._focused) {
			this._map._container.focus();
		}
	},

	_onFocus: function () {
		this._focused = true;
		this._map.fire('focus');
	},

	_onBlur: function () {
		this._focused = false;
		this._map.fire('blur');
	},

	_setPanOffset: function (pan) {
		var keys = this._panKeys = {},
		    codes = this.keyCodes,
		    i, len;

		for (i = 0, len = codes.left.length; i < len; i++) {
			keys[codes.left[i]] = [-1 * pan, 0];
		}
		for (i = 0, len = codes.right.length; i < len; i++) {
			keys[codes.right[i]] = [pan, 0];
		}
		for (i = 0, len = codes.down.length; i < len; i++) {
			keys[codes.down[i]] = [0, pan];
		}
		for (i = 0, len = codes.up.length; i < len; i++) {
			keys[codes.up[i]] = [0, -1 * pan];
		}
	},

	_setZoomOffset: function (zoom) {
		var keys = this._zoomKeys = {},
			codes = this.keyCodes,
		    i, len;

		for (i = 0, len = codes.zoomIn.length; i < len; i++) {
			keys[codes.zoomIn[i]] = zoom;
		}
		for (i = 0, len = codes.zoomOut.length; i < len; i++) {
			keys[codes.zoomOut[i]] = -zoom;
		}
	},

	_addHooks: function () {
		L.DomEvent.addListener(document, 'keydown', this._onKeyDown, this);
	},

	_removeHooks: function () {
		L.DomEvent.removeListener(document, 'keydown', this._onKeyDown, this);
	},

	_onKeyDown: function (e) {
		var key = e.keyCode;

		if (this._panKeys.hasOwnProperty(key)) {
			this._map.panBy(this._panKeys[key]);

		} else if (this._zoomKeys.hasOwnProperty(key)) {
			this._map.setZoom(this._map.getZoom() + this._zoomKeys[key]);

		} else {
			return;
		}

		L.DomEvent.stop(e);
	}
});

L.Map.addInitHook('addHandler', 'keyboard', L.Map.Keyboard);


/*
 * L.Handler.MarkerDrag is used internally by L.Marker to make the markers draggable.
 */

L.Handler.MarkerDrag = L.Handler.extend({
	initialize: function (marker) {
		this._marker = marker;
	},

	addHooks: function () {
		var icon = this._marker._icon;
		if (!this._draggable) {
			this._draggable = new L.Draggable(icon, icon)
				.on('dragstart', this._onDragStart, this)
				.on('drag', this._onDrag, this)
				.on('dragend', this._onDragEnd, this);
		}
		this._draggable.enable();
	},

	removeHooks: function () {
		this._draggable.disable();
	},

	moved: function () {
		return this._draggable && this._draggable._moved;
	},

	_onDragStart: function (e) {
		this._marker
			.closePopup()
			.fire('movestart')
			.fire('dragstart');
	},

	_onDrag: function (e) {
		// update shadow position
		var iconPos = L.DomUtil.getPosition(this._marker._icon);
		if (this._marker._shadow) {
			L.DomUtil.setPosition(this._marker._shadow, iconPos);
		}

		this._marker._latlng = this._marker._map.layerPointToLatLng(iconPos);

		this._marker
			.fire('move')
			.fire('drag');
	},

	_onDragEnd: function () {
		this._marker
			.fire('moveend')
			.fire('dragend');
	}
});


L.Handler.PolyEdit = L.Handler.extend({
	options: {
		icon: new L.DivIcon({
			iconSize: new L.Point(8, 8),
			className: 'leaflet-div-icon leaflet-editing-icon'
		})
	},

	initialize: function (poly, options) {
		this._poly = poly;
		L.Util.setOptions(this, options);
	},

	addHooks: function () {
		if (this._poly._map) {
			if (!this._markerGroup) {
				this._initMarkers();
			}
			this._poly._map.addLayer(this._markerGroup);
		}
	},

	removeHooks: function () {
		if (this._poly._map) {
			this._poly._map.removeLayer(this._markerGroup);
			delete this._markerGroup;
			delete this._markers;
		}
	},

	updateMarkers: function () {
		this._markerGroup.clearLayers();
		this._initMarkers();
	},

	_initMarkers: function () {
		if (!this._markerGroup) {
			this._markerGroup = new L.LayerGroup();
		}
		this._markers = [];

		var latlngs = this._poly._latlngs,
		    i, j, len, marker;

		// TODO refactor holes implementation in Polygon to support it here

		for (i = 0, len = latlngs.length; i < len; i++) {

			marker = this._createMarker(latlngs[i], i);
			marker.on('click', this._onMarkerClick, this);
			this._markers.push(marker);
		}

		var markerLeft, markerRight;

		for (i = 0, j = len - 1; i < len; j = i++) {
			if (i === 0 && !(L.Polygon && (this._poly instanceof L.Polygon))) {
				continue;
			}

			markerLeft = this._markers[j];
			markerRight = this._markers[i];

			this._createMiddleMarker(markerLeft, markerRight);
			this._updatePrevNext(markerLeft, markerRight);
		}
	},

	_createMarker: function (latlng, index) {
		var marker = new L.Marker(latlng, {
			draggable: true,
			icon: this.options.icon
		});

		marker._origLatLng = latlng;
		marker._index = index;

		marker.on('drag', this._onMarkerDrag, this);
		marker.on('dragend', this._fireEdit, this);

		this._markerGroup.addLayer(marker);

		return marker;
	},

	_fireEdit: function () {
		this._poly.fire('edit');
	},

	_onMarkerDrag: function (e) {
		var marker = e.target;

		L.Util.extend(marker._origLatLng, marker._latlng);

		if (marker._middleLeft) {
			marker._middleLeft.setLatLng(this._getMiddleLatLng(marker._prev, marker));
		}
		if (marker._middleRight) {
			marker._middleRight.setLatLng(this._getMiddleLatLng(marker, marker._next));
		}

		this._poly.redraw();
	},

	_onMarkerClick: function (e) {
		// Default action on marker click is to remove that marker, but if we remove the marker when latlng count < 3, we don't have a valid polyline anymore
		if (this._poly._latlngs.length < 3) {
			return;
		}

		var marker = e.target,
		    i = marker._index;

		// Check existence of previous and next markers since they wouldn't exist for edge points on the polyline
		if (marker._prev && marker._next) {
			this._createMiddleMarker(marker._prev, marker._next);
			this._updatePrevNext(marker._prev, marker._next);
		}

		// The marker itself is guaranteed to exist and present in the layer, since we managed to click on it
		this._markerGroup.removeLayer(marker);
		// Check for the existence of middle left or middle right
		if (marker._middleLeft) {
			this._markerGroup.removeLayer(marker._middleLeft);
		}
		if (marker._middleRight) {
			this._markerGroup.removeLayer(marker._middleRight);
		}
		this._markers.splice(i, 1);
		this._poly.spliceLatLngs(i, 1);
		this._updateIndexes(i, -1);
		this._poly.fire('edit');
	},

	_updateIndexes: function (index, delta) {
		this._markerGroup.eachLayer(function (marker) {
			if (marker._index > index) {
				marker._index += delta;
			}
		});
	},

	_createMiddleMarker: function (marker1, marker2) {
		var latlng = this._getMiddleLatLng(marker1, marker2),
			marker = this._createMarker(latlng),
			onClick,
			onDragStart,
			onDragEnd;

		marker.setOpacity(0.6);

		marker1._middleRight = marker2._middleLeft = marker;

		onDragStart = function () {
			var i = marker2._index;

			marker._index = i;

			marker
				.off('click', onClick)
				.on('click', this._onMarkerClick, this);

			latlng.lat = marker.getLatLng().lat;
			latlng.lng = marker.getLatLng().lng;
			this._poly.spliceLatLngs(i, 0, latlng);
			this._markers.splice(i, 0, marker);

			marker.setOpacity(1);

			this._updateIndexes(i, 1);
			marker2._index++;
			this._updatePrevNext(marker1, marker);
			this._updatePrevNext(marker, marker2);
		};

		onDragEnd = function () {
			marker.off('dragstart', onDragStart, this);
			marker.off('dragend', onDragEnd, this);

			this._createMiddleMarker(marker1, marker);
			this._createMiddleMarker(marker, marker2);
		};

		onClick = function () {
			onDragStart.call(this);
			onDragEnd.call(this);
			this._poly.fire('edit');
		};

		marker
			.on('click', onClick, this)
			.on('dragstart', onDragStart, this)
			.on('dragend', onDragEnd, this);

		this._markerGroup.addLayer(marker);
	},

	_updatePrevNext: function (marker1, marker2) {
		marker1._next = marker2;
		marker2._prev = marker1;
	},

	_getMiddleLatLng: function (marker1, marker2) {
		var map = this._poly._map,
		    p1 = map.latLngToLayerPoint(marker1.getLatLng()),
		    p2 = map.latLngToLayerPoint(marker2.getLatLng());

		return map.layerPointToLatLng(p1._add(p2).divideBy(2));
	}
});



L.Control = L.Class.extend({
	options: {
		position: 'topright'
	},

	initialize: function (options) {
		L.Util.setOptions(this, options);
	},

	getPosition: function () {
		return this.options.position;
	},

	setPosition: function (position) {
		var map = this._map;

		if (map) {
			map.removeControl(this);
		}

		this.options.position = position;

		if (map) {
			map.addControl(this);
		}

		return this;
	},

	addTo: function (map) {
		this._map = map;

		var container = this._container = this.onAdd(map),
		    pos = this.getPosition(),
			corner = map._controlCorners[pos];

		L.DomUtil.addClass(container, 'leaflet-control');

		if (pos.indexOf('bottom') !== -1) {
			corner.insertBefore(container, corner.firstChild);
		} else {
			corner.appendChild(container);
		}

		return this;
	},

	removeFrom: function (map) {
		var pos = this.getPosition(),
			corner = map._controlCorners[pos];

		corner.removeChild(this._container);
		this._map = null;

		if (this.onRemove) {
			this.onRemove(map);
		}

		return this;
	}
});

L.control = function (options) {
	return new L.Control(options);
};


L.Map.include({
	addControl: function (control) {
		control.addTo(this);
		return this;
	},

	removeControl: function (control) {
		control.removeFrom(this);
		return this;
	},

	_initControlPos: function () {
		var corners = this._controlCorners = {},
		    l = 'leaflet-',
		    container = this._controlContainer =
				L.DomUtil.create('div', l + 'control-container', this._container);

		function createCorner(vSide, hSide) {
			var className = l + vSide + ' ' + l + hSide;

			corners[vSide + hSide] =
					L.DomUtil.create('div', className, container);
		}

		createCorner('top', 'left');
		createCorner('top', 'right');
		createCorner('bottom', 'left');
		createCorner('bottom', 'right');
	}
});


L.Control.Zoom = L.Control.extend({
	options: {
		position: 'topleft'
	},

	onAdd: function (map) {
		var className = 'leaflet-control-zoom',
		    container = L.DomUtil.create('div', className);

		this._createButton('Zoom in', className + '-in', container, map.zoomIn, map);
		this._createButton('Zoom out', className + '-out', container, map.zoomOut, map);

		return container;
	},

	_createButton: function (title, className, container, fn, context) {
		var link = L.DomUtil.create('a', className, container);
		link.href = '#';
		link.title = title;

		L.DomEvent
			.on(link, 'click', L.DomEvent.stopPropagation)
			.on(link, 'click', L.DomEvent.preventDefault)
			.on(link, 'click', fn, context)
			.on(link, 'dblclick', L.DomEvent.stopPropagation);

		return link;
	}
});

L.Map.mergeOptions({
	zoomControl: true
});

L.Map.addInitHook(function () {
	if (this.options.zoomControl) {
		this.zoomControl = new L.Control.Zoom();
		this.addControl(this.zoomControl);
	}
});

L.control.zoom = function (options) {
	return new L.Control.Zoom(options);
};

L.Control.Attribution = L.Control.extend({
	options: {
		position: 'bottomright',
		prefix: 'Powered by <a href="http://leaflet.cloudmade.com">Leaflet</a>'
	},

	initialize: function (options) {
		L.Util.setOptions(this, options);

		this._attributions = {};
	},

	onAdd: function (map) {
		this._container = L.DomUtil.create('div', 'leaflet-control-attribution');
		L.DomEvent.disableClickPropagation(this._container);

		map
			.on('layeradd', this._onLayerAdd, this)
			.on('layerremove', this._onLayerRemove, this);

		this._update();

		return this._container;
	},

	onRemove: function (map) {
		map
			.off('layeradd', this._onLayerAdd)
			.off('layerremove', this._onLayerRemove);

	},

	setPrefix: function (prefix) {
		this.options.prefix = prefix;
		this._update();
		return this;
	},

	addAttribution: function (text) {
		if (!text) { return; }

		if (!this._attributions[text]) {
			this._attributions[text] = 0;
		}
		this._attributions[text]++;

		this._update();

		return this;
	},

	removeAttribution: function (text) {
		if (!text) { return; }

		this._attributions[text]--;
		this._update();

		return this;
	},

	_update: function () {
		if (!this._map) { return; }

		var attribs = [];

		for (var i in this._attributions) {
			if (this._attributions.hasOwnProperty(i) && this._attributions[i]) {
				attribs.push(i);
			}
		}

		var prefixAndAttribs = [];

		if (this.options.prefix) {
			prefixAndAttribs.push(this.options.prefix);
		}
		if (attribs.length) {
			prefixAndAttribs.push(attribs.join(', '));
		}

		this._container.innerHTML = prefixAndAttribs.join(' &#8212; ');
	},

	_onLayerAdd: function (e) {
		if (e.layer.getAttribution) {
			this.addAttribution(e.layer.getAttribution());
		}
	},

	_onLayerRemove: function (e) {
		if (e.layer.getAttribution) {
			this.removeAttribution(e.layer.getAttribution());
		}
	}
});

L.Map.mergeOptions({
	attributionControl: true
});

L.Map.addInitHook(function () {
	if (this.options.attributionControl) {
		this.attributionControl = (new L.Control.Attribution()).addTo(this);
	}
});

L.control.attribution = function (options) {
	return new L.Control.Attribution(options);
};


L.Control.Scale = L.Control.extend({
	options: {
		position: 'bottomleft',
		maxWidth: 100,
		metric: true,
		imperial: true,
		updateWhenIdle: false
	},

	onAdd: function (map) {
		this._map = map;

		var className = 'leaflet-control-scale',
		    container = L.DomUtil.create('div', className),
		    options = this.options;

		this._addScales(options, className, container);

		map.on(options.updateWhenIdle ? 'moveend' : 'move', this._update, this);
		this._update();

		return container;
	},

	onRemove: function (map) {
		map.off(this.options.updateWhenIdle ? 'moveend' : 'move', this._update, this);
	},

	_addScales: function (options, className, container) {
		if (options.metric) {
			this._mScale = L.DomUtil.create('div', className + '-line', container);
		}
		if (options.imperial) {
			this._iScale = L.DomUtil.create('div', className + '-line', container);
		}
	},

	_update: function () {
		var bounds = this._map.getBounds(),
		    centerLat = bounds.getCenter().lat,
		    halfWorldMeters = 6378137 * Math.PI * Math.cos(centerLat * Math.PI / 180),
		    dist = halfWorldMeters * (bounds.getNorthEast().lng - bounds.getSouthWest().lng) / 180,

		    size = this._map.getSize(),
		    options = this.options,
		    maxMeters = 0;

		if (size.x > 0) {
			maxMeters = dist * (options.maxWidth / size.x);
		}

		this._updateScales(options, maxMeters);
	},

	_updateScales: function (options, maxMeters) {
		if (options.metric && maxMeters) {
			this._updateMetric(maxMeters);
		}

		if (options.imperial && maxMeters) {
			this._updateImperial(maxMeters);
		}
	},

	_updateMetric: function (maxMeters) {
		var meters = this._getRoundNum(maxMeters);

		this._mScale.style.width = this._getScaleWidth(meters / maxMeters) + 'px';
		this._mScale.innerHTML = meters < 1000 ? meters + ' m' : (meters / 1000) + ' km';
	},

	_updateImperial: function (maxMeters) {
		var maxFeet = maxMeters * 3.2808399,
			scale = this._iScale,
			maxMiles, miles, feet;

		if (maxFeet > 5280) {
			maxMiles = maxFeet / 5280;
			miles = this._getRoundNum(maxMiles);

			scale.style.width = this._getScaleWidth(miles / maxMiles) + 'px';
			scale.innerHTML = miles + ' mi';

		} else {
			feet = this._getRoundNum(maxFeet);

			scale.style.width = this._getScaleWidth(feet / maxFeet) + 'px';
			scale.innerHTML = feet + ' ft';
		}
	},

	_getScaleWidth: function (ratio) {
		return Math.round(this.options.maxWidth * ratio) - 10;
	},

	_getRoundNum: function (num) {
		var pow10 = Math.pow(10, (Math.floor(num) + '').length - 1),
		    d = num / pow10;

		d = d >= 10 ? 10 : d >= 5 ? 5 : d >= 3 ? 3 : d >= 2 ? 2 : 1;

		return pow10 * d;
	}
});

L.control.scale = function (options) {
	return new L.Control.Scale(options);
};



L.Control.Layers = L.Control.extend({
	options: {
		collapsed: true,
		position: 'topright',
		autoZIndex: true
	},

	initialize: function (baseLayers, overlays, options) {
		L.Util.setOptions(this, options);

		this._layers = {};
		this._lastZIndex = 0;

		for (var i in baseLayers) {
			if (baseLayers.hasOwnProperty(i)) {
				this._addLayer(baseLayers[i], i);
			}
		}

		for (i in overlays) {
			if (overlays.hasOwnProperty(i)) {
				this._addLayer(overlays[i], i, true);
			}
		}
	},

	onAdd: function (map) {
		this._initLayout();
		this._update();

		return this._container;
	},

	addBaseLayer: function (layer, name) {
		this._addLayer(layer, name);
		this._update();
		return this;
	},

	addOverlay: function (layer, name) {
		this._addLayer(layer, name, true);
		this._update();
		return this;
	},

	removeLayer: function (layer) {
		var id = L.Util.stamp(layer);
		delete this._layers[id];
		this._update();
		return this;
	},

	_initLayout: function () {
		var className = 'leaflet-control-layers',
		    container = this._container = L.DomUtil.create('div', className);

		if (!L.Browser.touch) {
			L.DomEvent.disableClickPropagation(container);
		} else {
			L.DomEvent.on(container, 'click', L.DomEvent.stopPropagation);
		}

		var form = this._form = L.DomUtil.create('form', className + '-list');

		if (this.options.collapsed) {
			L.DomEvent
				.on(container, 'mouseover', this._expand, this)
				.on(container, 'mouseout', this._collapse, this);

			var link = this._layersLink = L.DomUtil.create('a', className + '-toggle', container);
			link.href = '#';
			link.title = 'Layers';

			if (L.Browser.touch) {
				L.DomEvent
					.on(link, 'click', L.DomEvent.stopPropagation)
					.on(link, 'click', L.DomEvent.preventDefault)
					.on(link, 'click', this._expand, this);
			}
			else {
				L.DomEvent.on(link, 'focus', this._expand, this);
			}

			this._map.on('movestart', this._collapse, this);
			// TODO keyboard accessibility
		} else {
			this._expand();
		}

		this._baseLayersList = L.DomUtil.create('div', className + '-base', form);
		this._separator = L.DomUtil.create('div', className + '-separator', form);
		this._overlaysList = L.DomUtil.create('div', className + '-overlays', form);

		container.appendChild(form);
	},

	_addLayer: function (layer, name, overlay) {
		var id = L.Util.stamp(layer);

		this._layers[id] = {
			layer: layer,
			name: name,
			overlay: overlay
		};

		if (this.options.autoZIndex && layer.setZIndex) {
			this._lastZIndex++;
			layer.setZIndex(this._lastZIndex);
		}
	},

	_update: function () {
		if (!this._container) {
			return;
		}

		this._baseLayersList.innerHTML = '';
		this._overlaysList.innerHTML = '';

		var baseLayersPresent = false,
			overlaysPresent = false;

		for (var i in this._layers) {
			if (this._layers.hasOwnProperty(i)) {
				var obj = this._layers[i];
				this._addItem(obj);
				overlaysPresent = overlaysPresent || obj.overlay;
				baseLayersPresent = baseLayersPresent || !obj.overlay;
			}
		}

		this._separator.style.display = (overlaysPresent && baseLayersPresent ? '' : 'none');
	},

	// IE7 bugs out if you create a radio dynamically, so you have to do it this hacky way (see http://bit.ly/PqYLBe)
	_createRadioElement: function (name, checked) {

		var radioHtml = '<input type="radio" name="' + name + '"';
		if (checked) {
			radioHtml += ' checked="checked"';
		}
		radioHtml += '/>';

		var radioFragment = document.createElement('div');
		radioFragment.innerHTML = radioHtml;

		return radioFragment.firstChild;
	},

	_addItem: function (obj) {
		var label = document.createElement('label'),
		    input,
		    checked = this._map.hasLayer(obj.layer);

		if (obj.overlay) {
			input = document.createElement('input');
			input.type = 'checkbox';
			input.defaultChecked = checked;
		} else {
			input = this._createRadioElement('leaflet-base-layers', checked);
		}

		input.layerId = L.Util.stamp(obj.layer);

		L.DomEvent.on(input, 'click', this._onInputClick, this);

		var name = document.createTextNode(' ' + obj.name);

		label.appendChild(input);
		label.appendChild(name);

		var container = obj.overlay ? this._overlaysList : this._baseLayersList;
		container.appendChild(label);
	},

	_onInputClick: function () {
		var i, input, obj,
			inputs = this._form.getElementsByTagName('input'),
			inputsLen = inputs.length;

		for (i = 0; i < inputsLen; i++) {
			input = inputs[i];
			obj = this._layers[input.layerId];

			if (input.checked) {
				this._map.addLayer(obj.layer, !obj.overlay);
			} else {
				this._map.removeLayer(obj.layer);
			}
		}
	},

	_expand: function () {
		L.DomUtil.addClass(this._container, 'leaflet-control-layers-expanded');
	},

	_collapse: function () {
		this._container.className = this._container.className.replace(' leaflet-control-layers-expanded', '');
	}
});

L.control.layers = function (baseLayers, overlays, options) {
	return new L.Control.Layers(baseLayers, overlays, options);
};


L.Transition = L.Class.extend({
	includes: L.Mixin.Events,

	statics: {
		CUSTOM_PROPS_SETTERS: {
			position: L.DomUtil.setPosition
			//TODO transform custom attr
		},

		implemented: function () {
			return L.Transition.NATIVE || L.Transition.TIMER;
		}
	},

	options: {
		easing: 'ease',
		duration: 0.5
	},

	_setProperty: function (prop, value) {
		var setters = L.Transition.CUSTOM_PROPS_SETTERS;
		if (prop in setters) {
			setters[prop](this._el, value);
		} else {
			this._el.style[prop] = value;
		}
	}
});


/*
 * L.Transition native implementation that powers Leaflet animation
 * in browsers that support CSS3 Transitions
 */

L.Transition = L.Transition.extend({
	statics: (function () {
		var transition = L.DomUtil.TRANSITION,
			transitionEnd = (transition === 'webkitTransition' || transition === 'OTransition' ?
				transition + 'End' : 'transitionend');

		return {
			NATIVE: !!transition,

			TRANSITION: transition,
			PROPERTY: transition + 'Property',
			DURATION: transition + 'Duration',
			EASING: transition + 'TimingFunction',
			END: transitionEnd,

			// transition-property value to use with each particular custom property
			CUSTOM_PROPS_PROPERTIES: {
				position: L.Browser.any3d ? L.DomUtil.TRANSFORM : 'top, left'
			}
		};
	}()),

	options: {
		fakeStepInterval: 100
	},

	initialize: function (/*HTMLElement*/ el, /*Object*/ options) {
		this._el = el;
		L.Util.setOptions(this, options);

		L.DomEvent.on(el, L.Transition.END, this._onTransitionEnd, this);
		this._onFakeStep = L.Util.bind(this._onFakeStep, this);
	},

	run: function (/*Object*/ props) {
		var prop,
			propsList = [],
			customProp = L.Transition.CUSTOM_PROPS_PROPERTIES;

		for (prop in props) {
			if (props.hasOwnProperty(prop)) {
				prop = customProp[prop] ? customProp[prop] : prop;
				prop = this._dasherize(prop);
				propsList.push(prop);
			}
		}

		this._el.style[L.Transition.DURATION] = this.options.duration + 's';
		this._el.style[L.Transition.EASING] = this.options.easing;
		this._el.style[L.Transition.PROPERTY] = propsList.join(', ');

		for (prop in props) {
			if (props.hasOwnProperty(prop)) {
				this._setProperty(prop, props[prop]);
			}
		}

		this._inProgress = true;

		this.fire('start');

		if (L.Browser.mobileWebkit) {
			// Set up a slightly delayed call to a backup event if webkitTransitionEnd doesn't fire properly
			this.backupEventFire = setTimeout(L.Util.bind(this._onBackupFireEnd, this), this.options.duration * 1.2 * 1000);
		}

		if (L.Transition.NATIVE) {
			clearInterval(this._timer);
			this._timer = setInterval(this._onFakeStep, this.options.fakeStepInterval);
		} else {
			this._onTransitionEnd();
		}
	},

	_dasherize: (function () {
		var re = /([A-Z])/g;

		function replaceFn(w) {
			return '-' + w.toLowerCase();
		}

		return function (str) {
			return str.replace(re, replaceFn);
		};
	}()),

	_onFakeStep: function () {
		this.fire('step');
	},

	_onTransitionEnd: function (e) {
		if (this._inProgress) {
			this._inProgress = false;
			clearInterval(this._timer);

			this._el.style[L.Transition.TRANSITION] = '';

			// Clear the delayed call to the backup event, we have recieved some form of webkitTransitionEnd
			clearTimeout(this.backupEventFire);
			delete this.backupEventFire;

			this.fire('step');

			if (e && e.type) {
				this.fire('end');
			}
		}
	},

	_onBackupFireEnd: function () {
		// Create and fire a transitionEnd event on the element.

		var event = document.createEvent("Event");
		event.initEvent(L.Transition.END, true, false);
		this._el.dispatchEvent(event);
	}
});


/*
 * L.Transition fallback implementation that powers Leaflet animation
 * in browsers that don't support CSS3 Transitions
 */

L.Transition = L.Transition.NATIVE ? L.Transition : L.Transition.extend({
	statics: {
		getTime: Date.now || function () {
			return +new Date();
		},

		TIMER: true,

		EASINGS: {
			'linear': function (t) { return t; },
			'ease-out': function (t) { return t * (2 - t); }
		},

		CUSTOM_PROPS_GETTERS: {
			position: L.DomUtil.getPosition
		},

		//used to get units from strings like "10.5px" (->px)
		UNIT_RE: /^[\d\.]+(\D*)$/
	},

	options: {
		fps: 50
	},

	initialize: function (el, options) {
		this._el = el;
		L.Util.extend(this.options, options);

		this._easing = L.Transition.EASINGS[this.options.easing] || L.Transition.EASINGS['ease-out'];

		this._step = L.Util.bind(this._step, this);
		this._interval = Math.round(1000 / this.options.fps);
	},

	run: function (props) {
		this._props = {};

		var getters = L.Transition.CUSTOM_PROPS_GETTERS,
			re = L.Transition.UNIT_RE;

		this.fire('start');

		for (var prop in props) {
			if (props.hasOwnProperty(prop)) {
				var p = {};
				if (prop in getters) {
					p.from = getters[prop](this._el);
				} else {
					var matches = this._el.style[prop].match(re);
					p.from = parseFloat(matches[0]);
					p.unit = matches[1];
				}
				p.to = props[prop];
				this._props[prop] = p;
			}
		}

		clearInterval(this._timer);
		this._timer = setInterval(this._step, this._interval);
		this._startTime = L.Transition.getTime();
	},

	_step: function () {
		var time = L.Transition.getTime(),
			elapsed = time - this._startTime,
			duration = this.options.duration * 1000;

		if (elapsed < duration) {
			this._runFrame(this._easing(elapsed / duration));
		} else {
			this._runFrame(1);
			this._complete();
		}
	},

	_runFrame: function (percentComplete) {
		var setters = L.Transition.CUSTOM_PROPS_SETTERS,
			prop, p, value;

		for (prop in this._props) {
			if (this._props.hasOwnProperty(prop)) {
				p = this._props[prop];
				if (prop in setters) {
					value = p.to.subtract(p.from).multiplyBy(percentComplete).add(p.from);
					setters[prop](this._el, value);
				} else {
					this._el.style[prop] =
							((p.to - p.from) * percentComplete + p.from) + p.unit;
				}
			}
		}
		this.fire('step');
	},

	_complete: function () {
		clearInterval(this._timer);
		this.fire('end');
	}
});



L.Map.include(!(L.Transition && L.Transition.implemented()) ? {} : {

	setView: function (center, zoom, forceReset) {
		zoom = this._limitZoom(zoom);

		var zoomChanged = (this._zoom !== zoom);

		if (this._loaded && !forceReset && this._layers) {
			var done = (zoomChanged ?
					this._zoomToIfClose && this._zoomToIfClose(center, zoom) :
					this._panByIfClose(center));

			// exit if animated pan or zoom started
			if (done) {
				clearTimeout(this._sizeTimer);
				return this;
			}
		}

		// reset the map view
		this._resetView(center, zoom);

		return this;
	},

	panBy: function (offset, options) {
		offset = L.point(offset);

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

		if (!this._panTransition) {
			this._panTransition = new L.Transition(this._mapPane);

			this._panTransition.on({
				'step': this._onPanTransitionStep,
				'end': this._onPanTransitionEnd
			}, this);
		}

		L.Util.setOptions(this._panTransition, L.Util.extend({duration: 0.25}, options));

		this.fire('movestart');

		L.DomUtil.addClass(this._mapPane, 'leaflet-pan-anim');

		this._panTransition.run({
			position: L.DomUtil.getPosition(this._mapPane).subtract(offset)
		});

		return this;
	},

	_onPanTransitionStep: function () {
		this.fire('move');
	},

	_onPanTransitionEnd: function () {
		L.DomUtil.removeClass(this._mapPane, 'leaflet-pan-anim');
		this.fire('moveend');
	},

	_panByIfClose: function (center) {
		// difference between the new and current centers in pixels
		var offset = this._getCenterOffset(center)._floor();

		if (this._offsetIsWithinView(offset)) {
			this.panBy(offset);
			return true;
		}
		return false;
	},

	_offsetIsWithinView: function (offset, multiplyFactor) {
		var m = multiplyFactor || 1,
			size = this.getSize();

		return (Math.abs(offset.x) <= size.x * m) &&
				(Math.abs(offset.y) <= size.y * m);
	}
});


L.Map.mergeOptions({
	zoomAnimation: L.DomUtil.TRANSITION && !L.Browser.android23 && !L.Browser.mobileOpera
});

L.Map.include(!L.DomUtil.TRANSITION ? {} : {

	_zoomToIfClose: function (center, zoom) {

		if (this._animatingZoom) { return true; }
		if (!this.options.zoomAnimation) { return false; }

		var scale = this.getZoomScale(zoom),
			offset = this._getCenterOffset(center).divideBy(1 - 1 / scale);

		// if offset does not exceed half of the view
		if (!this._offsetIsWithinView(offset, 1)) { return false; }

		L.DomUtil.addClass(this._mapPane, 'leaflet-zoom-anim');

		this
			.fire('movestart')
			.fire('zoomstart');

		this._prepareTileBg();

		this.fire('zoomanim', {
			center: center,
			zoom: zoom
		});

		var origin = this._getCenterLayerPoint().add(offset);

		this._runAnimation(center, zoom, scale, origin);

		return true;
	},


	_runAnimation: function (center, zoom, scale, origin, backwardsTransform) {
		this._animatingZoom = true;

		this._animateToCenter = center;
		this._animateToZoom = zoom;

		var transform = L.DomUtil.TRANSFORM,
			tileBg = this._tileBg;

		clearTimeout(this._clearTileBgTimer);

		//dumb FireFox hack, I have no idea why this magic zero translate fixes the scale transition problem
		if (L.Browser.gecko || window.opera) {
			tileBg.style[transform] += ' translate(0,0)';
		}

		var scaleStr;

		// Android 2.* doesn't like translate/scale chains, transformOrigin + scale works better but
		// it breaks touch zoom which Anroid doesn't support anyway, so that's a really ugly hack

		// TODO work around this prettier
		if (L.Browser.android23) {
			tileBg.style[transform + 'Origin'] = origin.x + 'px ' + origin.y + 'px';
			scaleStr = 'scale(' + scale + ')';
		} else {
			scaleStr = L.DomUtil.getScaleString(scale, origin);
		}

		L.Util.falseFn(tileBg.offsetWidth); //hack to make sure transform is updated before running animation

		var options = {};
		if (backwardsTransform) {
			options[transform] = tileBg.style[transform] + ' ' + scaleStr;
		} else {
			options[transform] = scaleStr + ' ' + tileBg.style[transform];
		}

		tileBg.transition.run(options);
	},

	_prepareTileBg: function () {
		var tilePane = this._tilePane,
			tileBg = this._tileBg;

		// If foreground layer doesn't have many tiles but bg layer does, keep the existing bg layer and just zoom it some more
		// (disable this for Android due to it not supporting double translate)
		if (!L.Browser.android23 && tileBg &&
				this._getLoadedTilesPercentage(tileBg) > 0.5 &&
				this._getLoadedTilesPercentage(tilePane) < 0.5) {

			tilePane.style.visibility = 'hidden';
			tilePane.empty = true;
			this._stopLoadingImages(tilePane);
			return;
		}

		if (!tileBg) {
			tileBg = this._tileBg = this._createPane('leaflet-tile-pane', this._mapPane);
			tileBg.style.zIndex = 1;
		}

		// prepare the background pane to become the main tile pane
		tileBg.style[L.DomUtil.TRANSFORM] = '';
		tileBg.style.visibility = 'hidden';

		// tells tile layers to reinitialize their containers
		tileBg.empty = true; //new FG
		tilePane.empty = false; //new BG

		//Switch out the current layer to be the new bg layer (And vice-versa)
		this._tilePane = this._panes.tilePane = tileBg;
		var newTileBg = this._tileBg = tilePane;

		if (!newTileBg.transition) {
			// TODO move to Map options
			newTileBg.transition = new L.Transition(newTileBg, {
				duration: 0.25,
				easing: 'cubic-bezier(0.25,0.1,0.25,0.75)'
			});
			newTileBg.transition.on('end', this._onZoomTransitionEnd, this);
		}

		this._stopLoadingImages(newTileBg);
	},

	_getLoadedTilesPercentage: function (container) {
		var tiles = container.getElementsByTagName('img'),
			i, len, count = 0;

		for (i = 0, len = tiles.length; i < len; i++) {
			if (tiles[i].complete) {
				count++;
			}
		}
		return count / len;
	},

	// stops loading all tiles in the background layer
	_stopLoadingImages: function (container) {
		var tiles = Array.prototype.slice.call(container.getElementsByTagName('img')),
			i, len, tile;

		for (i = 0, len = tiles.length; i < len; i++) {
			tile = tiles[i];

			if (!tile.complete) {
				tile.onload = L.Util.falseFn;
				tile.onerror = L.Util.falseFn;
				tile.src = L.Util.emptyImageUrl;

				tile.parentNode.removeChild(tile);
			}
		}
	},

	_onZoomTransitionEnd: function () {
		this._restoreTileFront();

		L.Util.falseFn(this._tileBg.offsetWidth); // force reflow
		this._resetView(this._animateToCenter, this._animateToZoom, true, true);

		L.DomUtil.removeClass(this._mapPane, 'leaflet-zoom-anim');
		this._animatingZoom = false;
	},

	_restoreTileFront: function () {
		this._tilePane.innerHTML = '';
		this._tilePane.style.visibility = '';
		this._tilePane.style.zIndex = 2;
		this._tileBg.style.zIndex = 1;
	},

	_clearTileBg: function () {
		if (!this._animatingZoom && !this.touchZoom._zooming) {
			this._tileBg.innerHTML = '';
		}
	}
});


/*
 * Provides L.Map with convenient shortcuts for W3C geolocation.
 */

L.Map.include({
	_defaultLocateOptions: {
		watch: false,
		setView: false,
		maxZoom: Infinity,
		timeout: 10000,
		maximumAge: 0,
		enableHighAccuracy: false
	},

	locate: function (/*Object*/ options) {

		options = this._locationOptions = L.Util.extend(this._defaultLocateOptions, options);

		if (!navigator.geolocation) {
			this._handleGeolocationError({
				code: 0,
				message: "Geolocation not supported."
			});
			return this;
		}

		var onResponse = L.Util.bind(this._handleGeolocationResponse, this),
			onError = L.Util.bind(this._handleGeolocationError, this);

		if (options.watch) {
			this._locationWatchId = navigator.geolocation.watchPosition(onResponse, onError, options);
		} else {
			navigator.geolocation.getCurrentPosition(onResponse, onError, options);
		}
		return this;
	},

	stopLocate: function () {
		if (navigator.geolocation) {
			navigator.geolocation.clearWatch(this._locationWatchId);
		}
		return this;
	},

	_handleGeolocationError: function (error) {
		var c = error.code,
			message = error.message ||
				(c === 1 ? "permission denied" :
				(c === 2 ? "position unavailable" : "timeout"));

		if (this._locationOptions.setView && !this._loaded) {
			this.fitWorld();
		}

		this.fire('locationerror', {
			code: c,
			message: "Geolocation error: " + message + "."
		});
	},

	_handleGeolocationResponse: function (pos) {
		var latAccuracy = 180 * pos.coords.accuracy / 4e7,
			lngAccuracy = latAccuracy * 2,

			lat = pos.coords.latitude,
			lng = pos.coords.longitude,
			latlng = new L.LatLng(lat, lng),

			sw = new L.LatLng(lat - latAccuracy, lng - lngAccuracy),
			ne = new L.LatLng(lat + latAccuracy, lng + lngAccuracy),
			bounds = new L.LatLngBounds(sw, ne),

			options = this._locationOptions;

		if (options.setView) {
			var zoom = Math.min(this.getBoundsZoom(bounds), options.maxZoom);
			this.setView(latlng, zoom);
		}

		this.fire('locationfound', {
			latlng: latlng,
			bounds: bounds,
			accuracy: pos.coords.accuracy
		});
	}
});




}(this));