/* wax - 7.0.1 - v6.0.4-181-ga34788e */


!function (name, context, definition) {
  //if (typeof module !== 'undefined') module.exports = definition(name, context);
  //else if (typeof define === 'function' && typeof define.amd  === 'object') define(definition);
  //else context[name] = definition(name, context);
  context[name] = definition(name, context);
}('bean', this, function (name, context) {
  var win = window
    , old = context[name]
    , overOut = /over|out/
    , namespaceRegex = /[^\.]*(?=\..*)\.|.*/
    , nameRegex = /\..*/
    , addEvent = 'addEventListener'
    , attachEvent = 'attachEvent'
    , removeEvent = 'removeEventListener'
    , detachEvent = 'detachEvent'
    , doc = document || {}
    , root = doc.documentElement || {}
    , W3C_MODEL = root[addEvent]
    , eventSupport = W3C_MODEL ? addEvent : attachEvent
    , slice = Array.prototype.slice
    , mouseTypeRegex = /click|mouse(?!(.*wheel|scroll))|menu|drag|drop/i
    , mouseWheelTypeRegex = /mouse.*(wheel|scroll)/i
    , textTypeRegex = /^text/i
    , touchTypeRegex = /^touch|^gesture/i
    , ONE = { one: 1 } // singleton for quick matching making add() do one()

    , nativeEvents = (function (hash, events, i) {
        for (i = 0; i < events.length; i++)
          hash[events[i]] = 1
        return hash
      })({}, (
          'click dblclick mouseup mousedown contextmenu ' +                  // mouse buttons
          'mousewheel mousemultiwheel DOMMouseScroll ' +                     // mouse wheel
          'mouseover mouseout mousemove selectstart selectend ' +            // mouse movement
          'keydown keypress keyup ' +                                        // keyboard
          'orientationchange ' +                                             // mobile
          'focus blur change reset select submit ' +                         // form elements
          'load unload beforeunload resize move DOMContentLoaded readystatechange ' + // window
          'error abort scroll ' +                                            // misc
          (W3C_MODEL ? // element.fireEvent('onXYZ'... is not forgiving if we try to fire an event
                       // that doesn't actually exist, so make sure we only do these on newer browsers
            'show ' +                                                          // mouse buttons
            'input invalid ' +                                                 // form elements
            'touchstart touchmove touchend touchcancel ' +                     // touch
            'gesturestart gesturechange gestureend ' +                         // gesture
            'MSPointerUp MSPointerDown MSPointerCancel MSPointerMove ' +       // MS Pointer events
            'MSPointerOver MSPointerOut ' +                                    // MS Pointer events
            'pointerup pointerdown pointermove pointercancel' +                // MS Pointer events
            'message readystatechange pageshow pagehide popstate ' +           // window
            'hashchange offline online ' +                                     // window
            'afterprint beforeprint ' +                                        // printing
            'dragstart dragenter dragover dragleave drag drop dragend ' +      // dnd
            'loadstart progress suspend emptied stalled loadmetadata ' +       // media
            'loadeddata canplay canplaythrough playing waiting seeking ' +     // media
            'seeked ended durationchange timeupdate play pause ratechange ' +  // media
            'volumechange cuechange ' +                                        // media
            'checking noupdate downloading cached updateready obsolete ' +     // appcache
            '' : '')
        ).split(' ')
      )

    , customEvents = (function () {
        function isDescendant(parent, node) {
          while ((node = node.parentNode) !== null) {
            if (node === parent) return true
          }
          return false
        }

        function check(event) {
          var related = event.relatedTarget
          if (!related) return related === null
          return (related !== this && related.prefix !== 'xul' && !/document/.test(this.toString()) && !isDescendant(this, related))
        }

        return {
            mouseenter: { base: 'mouseover', condition: check }
          , mouseleave: { base: 'mouseout', condition: check }
          , mousewheel: { base: /Firefox/.test(navigator.userAgent) ? 'DOMMouseScroll' : 'mousewheel' }
        }
      })()

    , fixEvent = (function () {
        var commonProps = 'altKey attrChange attrName bubbles cancelable ctrlKey currentTarget detail eventPhase getModifierState isTrusted metaKey relatedNode relatedTarget shiftKey srcElement target timeStamp type view which'.split(' ')
          , mouseProps = commonProps.concat('button buttons clientX clientY dataTransfer fromElement offsetX offsetY pageX pageY screenX screenY toElement'.split(' '))
          , mouseWheelProps = mouseProps.concat('wheelDelta wheelDeltaX wheelDeltaY wheelDeltaZ axis'.split(' ')) // 'axis' is FF specific
          , keyProps = commonProps.concat('char charCode key keyCode keyIdentifier keyLocation'.split(' '))
          , textProps = commonProps.concat(['data'])
          , touchProps = commonProps.concat('touches targetTouches changedTouches scale rotation'.split(' '))
          , preventDefault = 'preventDefault'
          , createPreventDefault = function (event) {
              return function () {
                if (event[preventDefault])
                  event[preventDefault]()
                else
                  event.returnValue = false
              }
            }
          , stopPropagation = 'stopPropagation'
          , createStopPropagation = function (event) {
              return function () {
                if (event[stopPropagation])
                  event[stopPropagation]()
                else
                  event.cancelBubble = true
              }
            }
          , createStop = function (synEvent) {
              return function () {
                synEvent[preventDefault]()
                synEvent[stopPropagation]()
                synEvent.stopped = true
              }
            }
          , copyProps = function (event, result, props) {
              var i, p
              for (i = props.length; i--;) {
                p = props[i]
                if (!(p in result) && p in event) result[p] = event[p]
              }
            }

        return function (event, isNative) {
          var result = { originalEvent: event, isNative: isNative }
          if (!event)
            return result

          var props
            , type = event.type
            , target = event.target || event.srcElement

          result[preventDefault] = createPreventDefault(event)
          result[stopPropagation] = createStopPropagation(event)
          result.stop = createStop(result)
          result.target = target && target.nodeType === 3 ? target.parentNode : target

          if (isNative) { // we only need basic augmentation on custom events, the rest is too expensive
            if (type.indexOf('key') !== -1) {
              props = keyProps
              result.keyCode = event.which || event.keyCode
            } else if (mouseTypeRegex.test(type)) {
              props = mouseProps
              result.rightClick = event.which === 3 || event.button === 2
              result.pos = { x: 0, y: 0 }
              if (event.pageX || event.pageY) {
                result.clientX = event.pageX
                result.clientY = event.pageY
              } else if (event.clientX || event.clientY) {
                result.clientX = event.clientX + doc.body.scrollLeft + root.scrollLeft
                result.clientY = event.clientY + doc.body.scrollTop + root.scrollTop
              }
              if (overOut.test(type))
                result.relatedTarget = event.relatedTarget || event[(type === 'mouseover' ? 'from' : 'to') + 'Element']
            } else if (touchTypeRegex.test(type)) {
              props = touchProps
            } else if (mouseWheelTypeRegex.test(type)) {
              props = mouseWheelProps
            } else if (textTypeRegex.test(type)) {
              props = textProps
            }
            copyProps(event, result, props || commonProps)
          }
          return result
        }
      })()

      // if we're in old IE we can't do onpropertychange on doc or win so we use doc.documentElement for both
    , targetElement = function (element, isNative) {
        return !W3C_MODEL && !isNative && (element === doc || element === win) ? root : element
      }

      // we use one of these per listener, of any type
    , RegEntry = (function () {
        function entry(element, type, handler, original, namespaces) {
          this.element = element
          this.type = type
          this.handler = handler
          this.original = original
          this.namespaces = namespaces
          this.custom = customEvents[type]
          this.isNative = nativeEvents[type] && element[eventSupport]
          this.eventType = W3C_MODEL || this.isNative ? type : 'propertychange'
          this.customType = !W3C_MODEL && !this.isNative && type
          this.target = targetElement(element, this.isNative)
          this.eventSupport = this.target[eventSupport]
        }

        entry.prototype = {
            // given a list of namespaces, is our entry in any of them?
            inNamespaces: function (checkNamespaces) {
              var i, j
              if (!checkNamespaces)
                return true
              if (!this.namespaces)
                return false
              for (i = checkNamespaces.length; i--;) {
                for (j = this.namespaces.length; j--;) {
                  if (checkNamespaces[i] === this.namespaces[j])
                    return true
                }
              }
              return false
            }

            // match by element, original fn (opt), handler fn (opt)
          , matches: function (checkElement, checkOriginal, checkHandler) {
              return this.element === checkElement &&
                (!checkOriginal || this.original === checkOriginal) &&
                (!checkHandler || this.handler === checkHandler)
            }
        }

        return entry
      })()

    , registry = (function () {
        // our map stores arrays by event type, just because it's better than storing
        // everything in a single array. uses '$' as a prefix for the keys for safety
        var map = {}

          // generic functional search of our registry for matching listeners,
          // `fn` returns false to break out of the loop
          , forAll = function (element, type, original, handler, fn) {
              if (!type || type === '*') {
                // search the whole registry
                for (var t in map) {
                  if (t.charAt(0) === '$')
                    forAll(element, t.substr(1), original, handler, fn)
                }
              } else {
                var i = 0, l, list = map['$' + type], all = element === '*'
                if (!list)
                  return
                for (l = list.length; i < l; i++) {
                  if (all || list[i].matches(element, original, handler))
                    if (!fn(list[i], list, i, type))
                      return
                }
              }
            }

          , has = function (element, type, original) {
              // we're not using forAll here simply because it's a bit slower and this
              // needs to be fast
              var i, list = map['$' + type]
              if (list) {
                for (i = list.length; i--;) {
                  if (list[i].matches(element, original, null))
                    return true
                }
              }
              return false
            }

          , get = function (element, type, original) {
              var entries = []
              forAll(element, type, original, null, function (entry) { return entries.push(entry) })
              return entries
            }

          , put = function (entry) {
              (map['$' + entry.type] || (map['$' + entry.type] = [])).push(entry)
              return entry
            }

          , del = function (entry) {
              forAll(entry.element, entry.type, null, entry.handler, function (entry, list, i) {
                list.splice(i, 1)
                if (list.length === 0)
                  delete map['$' + entry.type]
                return false
              })
            }

            // dump all entries, used for onunload
          , entries = function () {
              var t, entries = []
              for (t in map) {
                if (t.charAt(0) === '$')
                  entries = entries.concat(map[t])
              }
              return entries
            }

        return { has: has, get: get, put: put, del: del, entries: entries }
      })()

      // add and remove listeners to DOM elements
    , listener = W3C_MODEL ? function (element, type, fn, add) {
        element[add ? addEvent : removeEvent](type, fn, false)
      } : function (element, type, fn, add, custom) {
        if (custom && add && element['_on' + custom] === null)
          element['_on' + custom] = 0
        element[add ? attachEvent : detachEvent]('on' + type, fn)
      }

    , nativeHandler = function (element, fn, args) {
        return function (event) {
          event = fixEvent(event || ((this.ownerDocument || this.document || this).parentWindow || win).event, true)
          return fn.apply(element, [event].concat(args))
        }
      }

    , customHandler = function (element, fn, type, condition, args, isNative) {
        return function (event) {
          if (condition ? condition.apply(this, arguments) : W3C_MODEL ? true : event && event.propertyName === '_on' + type || !event) {
            if (event)
              event = fixEvent(event || ((this.ownerDocument || this.document || this).parentWindow || win).event, isNative)
            fn.apply(element, event && (!args || args.length === 0) ? arguments : slice.call(arguments, event ? 0 : 1).concat(args))
          }
        }
      }

    , once = function (rm, element, type, fn, originalFn) {
        // wrap the handler in a handler that does a remove as well
        return function () {
          rm(element, type, originalFn)
          fn.apply(this, arguments)
        }
      }

    , removeListener = function (element, orgType, handler, namespaces) {
        var i, l, entry
          , type = (orgType && orgType.replace(nameRegex, ''))
          , handlers = registry.get(element, type, handler)

        for (i = 0, l = handlers.length; i < l; i++) {
          if (handlers[i].inNamespaces(namespaces)) {
            if ((entry = handlers[i]).eventSupport)
              listener(entry.target, entry.eventType, entry.handler, false, entry.type)
            // TODO: this is problematic, we have a registry.get() and registry.del() that
            // both do registry searches so we waste cycles doing this. Needs to be rolled into
            // a single registry.forAll(fn) that removes while finding, but the catch is that
            // we'll be splicing the arrays that we're iterating over. Needs extra tests to
            // make sure we don't screw it up. @rvagg
            registry.del(entry)
          }
        }
      }

    , addListener = function (element, orgType, fn, originalFn, args) {
        var entry
          , type = orgType.replace(nameRegex, '')
          , namespaces = orgType.replace(namespaceRegex, '').split('.')

        if (registry.has(element, type, fn))
          return element // no dupe
        if (type === 'unload')
          fn = once(removeListener, element, type, fn, originalFn) // self clean-up
        if (customEvents[type]) {
          if (customEvents[type].condition)
            fn = customHandler(element, fn, type, customEvents[type].condition, true)
          type = customEvents[type].base || type
        }
        entry = registry.put(new RegEntry(element, type, fn, originalFn, namespaces[0] && namespaces))
        entry.handler = entry.isNative ?
          nativeHandler(element, entry.handler, args) :
          customHandler(element, entry.handler, type, false, args, false)
        if (entry.eventSupport)
          listener(entry.target, entry.eventType, entry.handler, true, entry.customType)
      }

    , del = function (selector, fn, $) {
        return function (e) {
          var target, i, array = typeof selector === 'string' ? $(selector, this) : selector
          for (target = e.target; target && target !== this; target = target.parentNode) {
            for (i = array.length; i--;) {
              if (array[i] === target) {
                return fn.apply(target, arguments)
              }
            }
          }
        }
      }

    , remove = function (element, typeSpec, fn) {
        var k, m, type, namespaces, i
          , rm = removeListener
          , isString = typeSpec && typeof typeSpec === 'string'

        if (isString && typeSpec.indexOf(' ') > 0) {
          // remove(el, 't1 t2 t3', fn) or remove(el, 't1 t2 t3')
          typeSpec = typeSpec.split(' ')
          for (i = typeSpec.length; i--;)
            remove(element, typeSpec[i], fn)
          return element
        }
        type = isString && typeSpec.replace(nameRegex, '')
        if (type && customEvents[type])
          type = customEvents[type].type
        if (!typeSpec || isString) {
          // remove(el) or remove(el, t1.ns) or remove(el, .ns) or remove(el, .ns1.ns2.ns3)
          if (namespaces = isString && typeSpec.replace(namespaceRegex, ''))
            namespaces = namespaces.split('.')
          rm(element, type, fn, namespaces)
        } else if (typeof typeSpec === 'function') {
          // remove(el, fn)
          rm(element, null, typeSpec)
        } else {
          // remove(el, { t1: fn1, t2, fn2 })
          for (k in typeSpec) {
            if (typeSpec.hasOwnProperty(k))
              remove(element, k, typeSpec[k])
          }
        }
        return element
      }

    , add = function (element, events, fn, delfn, $) {
        var type, types, i, args
          , originalFn = fn
          , isDel = fn && typeof fn === 'string'

        if (events && !fn && typeof events === 'object') {
          for (type in events) {
            if (events.hasOwnProperty(type))
              add.apply(this, [ element, type, events[type] ])
          }
        } else {
          args = arguments.length > 3 ? slice.call(arguments, 3) : []
          types = (isDel ? fn : events).split(' ')
          isDel && (fn = del(events, (originalFn = delfn), $)) && (args = slice.call(args, 1))
          // special case for one()
          this === ONE && (fn = once(remove, element, events, fn, originalFn))
          for (i = types.length; i--;) addListener(element, types[i], fn, originalFn, args)
        }
        return element
      }

    , one = function () {
        return add.apply(ONE, arguments)
      }

    , fireListener = W3C_MODEL ? function (isNative, type, element) {
        var evt = doc.createEvent(isNative ? 'HTMLEvents' : 'UIEvents')
        evt[isNative ? 'initEvent' : 'initUIEvent'](type, true, true, win, 1)
        element.dispatchEvent(evt)
      } : function (isNative, type, element) {
        element = targetElement(element, isNative)
        // if not-native then we're using onpropertychange so we just increment a custom property
        isNative ? element.fireEvent('on' + type, doc.createEventObject()) : element['_on' + type]++
      }

    , fire = function (element, type, args) {
        var i, j, l, names, handlers
          , types = type.split(' ')

        for (i = types.length; i--;) {
          type = types[i].replace(nameRegex, '')
          if (names = types[i].replace(namespaceRegex, ''))
            names = names.split('.')
          if (!names && !args && element[eventSupport]) {
            fireListener(nativeEvents[type], type, element)
          } else {
            // non-native event, either because of a namespace, arguments or a non DOM element
            // iterate over all listeners and manually 'fire'
            handlers = registry.get(element, type)
            args = [false].concat(args)
            for (j = 0, l = handlers.length; j < l; j++) {
              if (handlers[j].inNamespaces(names))
                handlers[j].handler.apply(element, args)
            }
          }
        }
        return element
      }

    , clone = function (element, from, type) {
        var i = 0
          , handlers = registry.get(from, type)
          , l = handlers.length

        for (;i < l; i++)
          handlers[i].original && add(element, handlers[i].type, handlers[i].original)
        return element
      }

    , bean = {
          add: add
        , one: one
        , remove: remove
        , clone: clone
        , fire: fire
        , noConflict: function () {
            context[name] = old
            return this
          }
      }

  if (win[attachEvent]) {
    // for IE, clean up on unload to avoid leaks
    var cleanup = function () {
      var i, entries = registry.entries()
      for (i in entries) {
        if (entries[i].type && entries[i].type !== 'unload')
          remove(entries[i].element, entries[i].type)
      }
      win[detachEvent]('onunload', cleanup)
      win.CollectGarbage && win.CollectGarbage()
    }
    win[attachEvent]('onunload', cleanup)
  }

  return bean
})
// Copyright Google Inc.
// Licensed under the Apache Licence Version 2.0
// Autogenerated at Tue Oct 11 13:36:46 EDT 2011
// @provides html4
var html4 = {};
html4.atype = {
  NONE: 0,
  URI: 1,
  URI_FRAGMENT: 11,
  SCRIPT: 2,
  STYLE: 3,
  ID: 4,
  IDREF: 5,
  IDREFS: 6,
  GLOBAL_NAME: 7,
  LOCAL_NAME: 8,
  CLASSES: 9,
  FRAME_TARGET: 10
};
html4.ATTRIBS = {
  '*::class': 9,
  '*::dir': 0,
  '*::id': 4,
  '*::lang': 0,
  '*::onclick': 2,
  '*::ondblclick': 2,
  '*::onkeydown': 2,
  '*::onkeypress': 2,
  '*::onkeyup': 2,
  '*::onload': 2,
  '*::onmousedown': 2,
  '*::onmousemove': 2,
  '*::onmouseout': 2,
  '*::onmouseover': 2,
  '*::onmouseup': 2,
  '*::style': 3,
  '*::title': 0,
  'a::accesskey': 0,
  'a::coords': 0,
  'a::href': 1,
  'a::hreflang': 0,
  'a::name': 7,
  'a::onblur': 2,
  'a::onfocus': 2,
  'a::rel': 0,
  'a::rev': 0,
  'a::shape': 0,
  'a::tabindex': 0,
  'a::target': 10,
  'a::type': 0,
  'area::accesskey': 0,
  'area::alt': 0,
  'area::coords': 0,
  'area::href': 1,
  'area::nohref': 0,
  'area::onblur': 2,
  'area::onfocus': 2,
  'area::shape': 0,
  'area::tabindex': 0,
  'area::target': 10,
  'bdo::dir': 0,
  'blockquote::cite': 1,
  'br::clear': 0,
  'button::accesskey': 0,
  'button::disabled': 0,
  'button::name': 8,
  'button::onblur': 2,
  'button::onfocus': 2,
  'button::tabindex': 0,
  'button::type': 0,
  'button::value': 0,
  'canvas::height': 0,
  'canvas::width': 0,
  'caption::align': 0,
  'col::align': 0,
  'col::char': 0,
  'col::charoff': 0,
  'col::span': 0,
  'col::valign': 0,
  'col::width': 0,
  'colgroup::align': 0,
  'colgroup::char': 0,
  'colgroup::charoff': 0,
  'colgroup::span': 0,
  'colgroup::valign': 0,
  'colgroup::width': 0,
  'del::cite': 1,
  'del::datetime': 0,
  'dir::compact': 0,
  'div::align': 0,
  'dl::compact': 0,
  'font::color': 0,
  'font::face': 0,
  'font::size': 0,
  'form::accept': 0,
  'form::action': 1,
  'form::autocomplete': 0,
  'form::enctype': 0,
  'form::method': 0,
  'form::name': 7,
  'form::onreset': 2,
  'form::onsubmit': 2,
  'form::target': 10,
  'h1::align': 0,
  'h2::align': 0,
  'h3::align': 0,
  'h4::align': 0,
  'h5::align': 0,
  'h6::align': 0,
  'hr::align': 0,
  'hr::noshade': 0,
  'hr::size': 0,
  'hr::width': 0,
  'iframe::align': 0,
  'iframe::frameborder': 0,
  'iframe::height': 0,
  'iframe::marginheight': 0,
  'iframe::marginwidth': 0,
  'iframe::width': 0,
  'img::align': 0,
  'img::alt': 0,
  'img::border': 0,
  'img::height': 0,
  'img::hspace': 0,
  'img::ismap': 0,
  'img::name': 7,
  'img::src': 1,
  'img::usemap': 11,
  'img::vspace': 0,
  'img::width': 0,
  'input::accept': 0,
  'input::accesskey': 0,
  'input::align': 0,
  'input::alt': 0,
  'input::autocomplete': 0,
  'input::checked': 0,
  'input::disabled': 0,
  'input::ismap': 0,
  'input::maxlength': 0,
  'input::name': 8,
  'input::onblur': 2,
  'input::onchange': 2,
  'input::onfocus': 2,
  'input::onselect': 2,
  'input::readonly': 0,
  'input::size': 0,
  'input::src': 1,
  'input::tabindex': 0,
  'input::type': 0,
  'input::usemap': 11,
  'input::value': 0,
  'ins::cite': 1,
  'ins::datetime': 0,
  'label::accesskey': 0,
  'label::for': 5,
  'label::onblur': 2,
  'label::onfocus': 2,
  'legend::accesskey': 0,
  'legend::align': 0,
  'li::type': 0,
  'li::value': 0,
  'map::name': 7,
  'menu::compact': 0,
  'ol::compact': 0,
  'ol::start': 0,
  'ol::type': 0,
  'optgroup::disabled': 0,
  'optgroup::label': 0,
  'option::disabled': 0,
  'option::label': 0,
  'option::selected': 0,
  'option::value': 0,
  'p::align': 0,
  'pre::width': 0,
  'q::cite': 1,
  'select::disabled': 0,
  'select::multiple': 0,
  'select::name': 8,
  'select::onblur': 2,
  'select::onchange': 2,
  'select::onfocus': 2,
  'select::size': 0,
  'select::tabindex': 0,
  'table::align': 0,
  'table::bgcolor': 0,
  'table::border': 0,
  'table::cellpadding': 0,
  'table::cellspacing': 0,
  'table::frame': 0,
  'table::rules': 0,
  'table::summary': 0,
  'table::width': 0,
  'tbody::align': 0,
  'tbody::char': 0,
  'tbody::charoff': 0,
  'tbody::valign': 0,
  'td::abbr': 0,
  'td::align': 0,
  'td::axis': 0,
  'td::bgcolor': 0,
  'td::char': 0,
  'td::charoff': 0,
  'td::colspan': 0,
  'td::headers': 6,
  'td::height': 0,
  'td::nowrap': 0,
  'td::rowspan': 0,
  'td::scope': 0,
  'td::valign': 0,
  'td::width': 0,
  'textarea::accesskey': 0,
  'textarea::cols': 0,
  'textarea::disabled': 0,
  'textarea::name': 8,
  'textarea::onblur': 2,
  'textarea::onchange': 2,
  'textarea::onfocus': 2,
  'textarea::onselect': 2,
  'textarea::readonly': 0,
  'textarea::rows': 0,
  'textarea::tabindex': 0,
  'tfoot::align': 0,
  'tfoot::char': 0,
  'tfoot::charoff': 0,
  'tfoot::valign': 0,
  'th::abbr': 0,
  'th::align': 0,
  'th::axis': 0,
  'th::bgcolor': 0,
  'th::char': 0,
  'th::charoff': 0,
  'th::colspan': 0,
  'th::headers': 6,
  'th::height': 0,
  'th::nowrap': 0,
  'th::rowspan': 0,
  'th::scope': 0,
  'th::valign': 0,
  'th::width': 0,
  'thead::align': 0,
  'thead::char': 0,
  'thead::charoff': 0,
  'thead::valign': 0,
  'tr::align': 0,
  'tr::bgcolor': 0,
  'tr::char': 0,
  'tr::charoff': 0,
  'tr::valign': 0,
  'ul::compact': 0,
  'ul::type': 0
};
html4.eflags = {
  OPTIONAL_ENDTAG: 1,
  EMPTY: 2,
  CDATA: 4,
  RCDATA: 8,
  UNSAFE: 16,
  FOLDABLE: 32,
  SCRIPT: 64,
  STYLE: 128
};
html4.ELEMENTS = {
  'a': 0,
  'abbr': 0,
  'acronym': 0,
  'address': 0,
  'applet': 16,
  'area': 2,
  'b': 0,
  'base': 18,
  'basefont': 18,
  'bdo': 0,
  'big': 0,
  'blockquote': 0,
  'body': 49,
  'br': 2,
  'button': 0,
  'canvas': 0,
  'caption': 0,
  'center': 0,
  'cite': 0,
  'code': 0,
  'col': 2,
  'colgroup': 1,
  'dd': 1,
  'del': 0,
  'dfn': 0,
  'dir': 0,
  'div': 0,
  'dl': 0,
  'dt': 1,
  'em': 0,
  'fieldset': 0,
  'font': 0,
  'form': 0,
  'frame': 18,
  'frameset': 16,
  'h1': 0,
  'h2': 0,
  'h3': 0,
  'h4': 0,
  'h5': 0,
  'h6': 0,
  'head': 49,
  'hr': 2,
  'html': 49,
  'i': 0,
  'iframe': 4,
  'img': 2,
  'input': 2,
  'ins': 0,
  'isindex': 18,
  'kbd': 0,
  'label': 0,
  'legend': 0,
  'li': 1,
  'link': 18,
  'map': 0,
  'menu': 0,
  'meta': 18,
  'nobr': 0,
  'noembed': 4,
  'noframes': 20,
  'noscript': 20,
  'object': 16,
  'ol': 0,
  'optgroup': 0,
  'option': 1,
  'p': 1,
  'param': 18,
  'pre': 0,
  'q': 0,
  's': 0,
  'samp': 0,
  'script': 84,
  'select': 0,
  'small': 0,
  'span': 0,
  'strike': 0,
  'strong': 0,
  'style': 148,
  'sub': 0,
  'sup': 0,
  'table': 0,
  'tbody': 1,
  'td': 1,
  'textarea': 8,
  'tfoot': 1,
  'th': 1,
  'thead': 1,
  'title': 24,
  'tr': 1,
  'tt': 0,
  'u': 0,
  'ul': 0,
  'var': 0
};
html4.ueffects = {
  NOT_LOADED: 0,
  SAME_DOCUMENT: 1,
  NEW_DOCUMENT: 2
};
html4.URIEFFECTS = {
  'a::href': 2,
  'area::href': 2,
  'blockquote::cite': 0,
  'body::background': 1,
  'del::cite': 0,
  'form::action': 2,
  'img::src': 1,
  'input::src': 1,
  'ins::cite': 0,
  'q::cite': 0
};
html4.ltypes = {
  UNSANDBOXED: 2,
  SANDBOXED: 1,
  DATA: 0
};
html4.LOADERTYPES = {
  'a::href': 2,
  'area::href': 2,
  'blockquote::cite': 2,
  'body::background': 1,
  'del::cite': 2,
  'form::action': 2,
  'img::src': 1,
  'input::src': 1,
  'ins::cite': 2,
  'q::cite': 2
};;
// Copyright (C) 2006 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

/**
 * @fileoverview
 * An HTML sanitizer that can satisfy a variety of security policies.
 *
 * <p>
 * The HTML sanitizer is built around a SAX parser and HTML element and
 * attributes schemas.
 *
 * @author mikesamuel@gmail.com
 * @requires html4
 * @overrides window
 * @provides html, html_sanitize
 */

/**
 * @namespace
 */
var html = (function (html4) {
  var lcase;
  // The below may not be true on browsers in the Turkish locale.
  if ('script' === 'SCRIPT'.toLowerCase()) {
    lcase = function (s) { return s.toLowerCase(); };
  } else {
    /**
     * {@updoc
     * $ lcase('SCRIPT')
     * # 'script'
     * $ lcase('script')
     * # 'script'
     * }
     */
    lcase = function (s) {
      return s.replace(
          /[A-Z]/g,
          function (ch) {
            return String.fromCharCode(ch.charCodeAt(0) | 32);
          });
    };
  }

  var ENTITIES = {
    lt   : '<',
    gt   : '>',
    amp  : '&',
    nbsp : '\240',
    quot : '"',
    apos : '\''
  };
  
  // Schemes on which to defer to uripolicy. Urls with other schemes are denied
  var WHITELISTED_SCHEMES = /^(?:https?|mailto|data)$/i;

  var decimalEscapeRe = /^#(\d+)$/;
  var hexEscapeRe = /^#x([0-9A-Fa-f]+)$/;
  /**
   * Decodes an HTML entity.
   *
   * {@updoc
   * $ lookupEntity('lt')
   * # '<'
   * $ lookupEntity('GT')
   * # '>'
   * $ lookupEntity('amp')
   * # '&'
   * $ lookupEntity('nbsp')
   * # '\xA0'
   * $ lookupEntity('apos')
   * # "'"
   * $ lookupEntity('quot')
   * # '"'
   * $ lookupEntity('#xa')
   * # '\n'
   * $ lookupEntity('#10')
   * # '\n'
   * $ lookupEntity('#x0a')
   * # '\n'
   * $ lookupEntity('#010')
   * # '\n'
   * $ lookupEntity('#x00A')
   * # '\n'
   * $ lookupEntity('Pi')      // Known failure
   * # '\u03A0'
   * $ lookupEntity('pi')      // Known failure
   * # '\u03C0'
   * }
   *
   * @param name the content between the '&' and the ';'.
   * @return a single unicode code-point as a string.
   */
  function lookupEntity(name) {
    name = lcase(name);  // TODO: &pi; is different from &Pi;
    if (ENTITIES.hasOwnProperty(name)) { return ENTITIES[name]; }
    var m = name.match(decimalEscapeRe);
    if (m) {
      return String.fromCharCode(parseInt(m[1], 10));
    } else if (!!(m = name.match(hexEscapeRe))) {
      return String.fromCharCode(parseInt(m[1], 16));
    }
    return '';
  }

  function decodeOneEntity(_, name) {
    return lookupEntity(name);
  }

  var nulRe = /\0/g;
  function stripNULs(s) {
    return s.replace(nulRe, '');
  }

  var entityRe = /&(#\d+|#x[0-9A-Fa-f]+|\w+);/g;
  /**
   * The plain text of a chunk of HTML CDATA which possibly containing.
   *
   * {@updoc
   * $ unescapeEntities('')
   * # ''
   * $ unescapeEntities('hello World!')
   * # 'hello World!'
   * $ unescapeEntities('1 &lt; 2 &amp;&AMP; 4 &gt; 3&#10;')
   * # '1 < 2 && 4 > 3\n'
   * $ unescapeEntities('&lt;&lt <- unfinished entity&gt;')
   * # '<&lt <- unfinished entity>'
   * $ unescapeEntities('/foo?bar=baz&copy=true')  // & often unescaped in URLS
   * # '/foo?bar=baz&copy=true'
   * $ unescapeEntities('pi=&pi;&#x3c0;, Pi=&Pi;\u03A0') // FIXME: known failure
   * # 'pi=\u03C0\u03c0, Pi=\u03A0\u03A0'
   * }
   *
   * @param s a chunk of HTML CDATA.  It must not start or end inside an HTML
   *   entity.
   */
  function unescapeEntities(s) {
    return s.replace(entityRe, decodeOneEntity);
  }

  var ampRe = /&/g;
  var looseAmpRe = /&([^a-z#]|#(?:[^0-9x]|x(?:[^0-9a-f]|$)|$)|$)/gi;
  var ltRe = /</g;
  var gtRe = />/g;
  var quotRe = /\"/g;
  var eqRe = /\=/g;  // Backslash required on JScript.net

  /**
   * Escapes HTML special characters in attribute values as HTML entities.
   *
   * {@updoc
   * $ escapeAttrib('')
   * # ''
   * $ escapeAttrib('"<<&==&>>"')  // Do not just escape the first occurrence.
   * # '&#34;&lt;&lt;&amp;&#61;&#61;&amp;&gt;&gt;&#34;'
   * $ escapeAttrib('Hello <World>!')
   * # 'Hello &lt;World&gt;!'
   * }
   */
  function escapeAttrib(s) {
    // Escaping '=' defangs many UTF-7 and SGML short-tag attacks.
    return s.replace(ampRe, '&amp;').replace(ltRe, '&lt;').replace(gtRe, '&gt;')
        .replace(quotRe, '&#34;').replace(eqRe, '&#61;');
  }

  /**
   * Escape entities in RCDATA that can be escaped without changing the meaning.
   * {@updoc
   * $ normalizeRCData('1 < 2 &&amp; 3 > 4 &amp;& 5 &lt; 7&8')
   * # '1 &lt; 2 &amp;&amp; 3 &gt; 4 &amp;&amp; 5 &lt; 7&amp;8'
   * }
   */
  function normalizeRCData(rcdata) {
    return rcdata
        .replace(looseAmpRe, '&amp;$1')
        .replace(ltRe, '&lt;')
        .replace(gtRe, '&gt;');
  }


  // TODO(mikesamuel): validate sanitizer regexs against the HTML5 grammar at
  // http://www.whatwg.org/specs/web-apps/current-work/multipage/syntax.html
  // http://www.whatwg.org/specs/web-apps/current-work/multipage/parsing.html
  // http://www.whatwg.org/specs/web-apps/current-work/multipage/tokenization.html
  // http://www.whatwg.org/specs/web-apps/current-work/multipage/tree-construction.html

  /** token definitions. */
  var INSIDE_TAG_TOKEN = new RegExp(
      // Don't capture space.
      '^\\s*(?:'
      // Capture an attribute name in group 1, and value in group 3.
      // We capture the fact that there was an attribute in group 2, since
      // interpreters are inconsistent in whether a group that matches nothing
      // is null, undefined, or the empty string.
      + ('(?:'
         + '([a-z][a-z-]*)'                    // attribute name
         + ('('                                // optionally followed
            + '\\s*=\\s*'
            + ('('
               // A double quoted string.
               + '\"[^\"]*\"'
               // A single quoted string.
               + '|\'[^\']*\''
               // The positive lookahead is used to make sure that in
               // <foo bar= baz=boo>, the value for bar is blank, not "baz=boo".
               + '|(?=[a-z][a-z-]*\\s*=)'
               // An unquoted value that is not an attribute name.
               // We know it is not an attribute name because the previous
               // zero-width match would've eliminated that possibility.
               + '|[^>\"\'\\s]*'
               + ')'
               )
            + ')'
            ) + '?'
         + ')'
         )
      // End of tag captured in group 3.
      + '|(\/?>)'
      // Don't capture cruft
      + '|[\\s\\S][^a-z\\s>]*)',
      'i');

  var OUTSIDE_TAG_TOKEN = new RegExp(
      '^(?:'
      // Entity captured in group 1.
      + '&(\\#[0-9]+|\\#[x][0-9a-f]+|\\w+);'
      // Comment, doctypes, and processing instructions not captured.
      + '|<\!--[\\s\\S]*?--\>|<!\\w[^>]*>|<\\?[^>*]*>'
      // '/' captured in group 2 for close tags, and name captured in group 3.
      + '|<(\/)?([a-z][a-z0-9]*)'
      // Text captured in group 4.
      + '|([^<&>]+)'
      // Cruft captured in group 5.
      + '|([<&>]))',
      'i');

  /**
   * Given a SAX-like event handler, produce a function that feeds those
   * events and a parameter to the event handler.
   *
   * The event handler has the form:{@code
   * {
   *   // Name is an upper-case HTML tag name.  Attribs is an array of
   *   // alternating upper-case attribute names, and attribute values.  The
   *   // attribs array is reused by the parser.  Param is the value passed to
   *   // the saxParser.
   *   startTag: function (name, attribs, param) { ... },
   *   endTag:   function (name, param) { ... },
   *   pcdata:   function (text, param) { ... },
   *   rcdata:   function (text, param) { ... },
   *   cdata:    function (text, param) { ... },
   *   startDoc: function (param) { ... },
   *   endDoc:   function (param) { ... }
   * }}
   *
   * @param {Object} handler a record containing event handlers.
   * @return {Function} that takes a chunk of html and a parameter.
   *   The parameter is passed on to the handler methods.
   */
  function makeSaxParser(handler) {
    return function parse(htmlText, param) {
      htmlText = String(htmlText);
      var htmlLower = null;

      var inTag = false;  // True iff we're currently processing a tag.
      var attribs = [];  // Accumulates attribute names and values.
      var tagName = void 0;  // The name of the tag currently being processed.
      var eflags = void 0;  // The element flags for the current tag.
      var openTag = void 0;  // True if the current tag is an open tag.

      if (handler.startDoc) { handler.startDoc(param); }

      while (htmlText) {
        var m = htmlText.match(inTag ? INSIDE_TAG_TOKEN : OUTSIDE_TAG_TOKEN);
        htmlText = htmlText.substring(m[0].length);

        if (inTag) {
          if (m[1]) { // attribute
            // setAttribute with uppercase names doesn't work on IE6.
            var attribName = lcase(m[1]);
            var decodedValue;
            if (m[2]) {
              var encodedValue = m[3];
              switch (encodedValue.charCodeAt(0)) {  // Strip quotes
                case 34: case 39:
                  encodedValue = encodedValue.substring(
                      1, encodedValue.length - 1);
                  break;
              }
              decodedValue = unescapeEntities(stripNULs(encodedValue));
            } else {
              // Use name as value for valueless attribs, so
              //   <input type=checkbox checked>
              // gets attributes ['type', 'checkbox', 'checked', 'checked']
              decodedValue = attribName;
            }
            attribs.push(attribName, decodedValue);
          } else if (m[4]) {
            if (eflags !== void 0) {  // False if not in whitelist.
              if (openTag) {
                if (handler.startTag) {
                  handler.startTag(tagName, attribs, param);
                }
              } else {
                if (handler.endTag) {
                  handler.endTag(tagName, param);
                }
              }
            }

            if (openTag
                && (eflags & (html4.eflags.CDATA | html4.eflags.RCDATA))) {
              if (htmlLower === null) {
                htmlLower = lcase(htmlText);
              } else {
                htmlLower = htmlLower.substring(
                    htmlLower.length - htmlText.length);
              }
              var dataEnd = htmlLower.indexOf('</' + tagName);
              if (dataEnd < 0) { dataEnd = htmlText.length; }
              if (dataEnd) {
                if (eflags & html4.eflags.CDATA) {
                  if (handler.cdata) {
                    handler.cdata(htmlText.substring(0, dataEnd), param);
                  }
                } else if (handler.rcdata) {
                  handler.rcdata(
                    normalizeRCData(htmlText.substring(0, dataEnd)), param);
                }
                htmlText = htmlText.substring(dataEnd);
              }
            }

            tagName = eflags = openTag = void 0;
            attribs.length = 0;
            inTag = false;
          }
        } else {
          if (m[1]) {  // Entity
            if (handler.pcdata) { handler.pcdata(m[0], param); }
          } else if (m[3]) {  // Tag
            openTag = !m[2];
            inTag = true;
            tagName = lcase(m[3]);
            eflags = html4.ELEMENTS.hasOwnProperty(tagName)
                ? html4.ELEMENTS[tagName] : void 0;
          } else if (m[4]) {  // Text
            if (handler.pcdata) { handler.pcdata(m[4], param); }
          } else if (m[5]) {  // Cruft
            if (handler.pcdata) {
              var ch = m[5];
              handler.pcdata(
                  ch === '<' ? '&lt;' : ch === '>' ? '&gt;' : '&amp;',
                  param);
            }
          }
        }
      }

      if (handler.endDoc) { handler.endDoc(param); }
    };
  }

  /**
   * Returns a function that strips unsafe tags and attributes from html.
   * @param {Function} sanitizeAttributes
   *     maps from (tagName, attribs[]) to null or a sanitized attribute array.
   *     The attribs array can be arbitrarily modified, but the same array
   *     instance is reused, so should not be held.
   * @return {Function} from html to sanitized html
   */
  function makeHtmlSanitizer(sanitizeAttributes) {
    var stack;
    var ignoring;
    return makeSaxParser({
        startDoc: function (_) {
          stack = [];
          ignoring = false;
        },
        startTag: function (tagName, attribs, out) {
          if (ignoring) { return; }
          if (!html4.ELEMENTS.hasOwnProperty(tagName)) { return; }
          var eflags = html4.ELEMENTS[tagName];
          if (eflags & html4.eflags.FOLDABLE) {
            return;
          } else if (eflags & html4.eflags.UNSAFE) {
            ignoring = !(eflags & html4.eflags.EMPTY);
            return;
          }
          attribs = sanitizeAttributes(tagName, attribs);
          // TODO(mikesamuel): relying on sanitizeAttributes not to
          // insert unsafe attribute names.
          if (attribs) {
            if (!(eflags & html4.eflags.EMPTY)) {
              stack.push(tagName);
            }

            out.push('<', tagName);
            for (var i = 0, n = attribs.length; i < n; i += 2) {
              var attribName = attribs[i],
                  value = attribs[i + 1];
              if (value !== null && value !== void 0) {
                out.push(' ', attribName, '="', escapeAttrib(value), '"');
              }
            }
            out.push('>');
          }
        },
        endTag: function (tagName, out) {
          if (ignoring) {
            ignoring = false;
            return;
          }
          if (!html4.ELEMENTS.hasOwnProperty(tagName)) { return; }
          var eflags = html4.ELEMENTS[tagName];
          if (!(eflags & (html4.eflags.UNSAFE | html4.eflags.EMPTY
                          | html4.eflags.FOLDABLE))) {
            var index;
            if (eflags & html4.eflags.OPTIONAL_ENDTAG) {
              for (index = stack.length; --index >= 0;) {
                var stackEl = stack[index];
                if (stackEl === tagName) { break; }
                if (!(html4.ELEMENTS[stackEl]
                      & html4.eflags.OPTIONAL_ENDTAG)) {
                  // Don't pop non optional end tags looking for a match.
                  return;
                }
              }
            } else {
              for (index = stack.length; --index >= 0;) {
                if (stack[index] === tagName) { break; }
              }
            }
            if (index < 0) { return; }  // Not opened.
            for (var i = stack.length; --i > index;) {
              var stackEl = stack[i];
              if (!(html4.ELEMENTS[stackEl]
                    & html4.eflags.OPTIONAL_ENDTAG)) {
                out.push('</', stackEl, '>');
              }
            }
            stack.length = index;
            out.push('</', tagName, '>');
          }
        },
        pcdata: function (text, out) {
          if (!ignoring) { out.push(text); }
        },
        rcdata: function (text, out) {
          if (!ignoring) { out.push(text); }
        },
        cdata: function (text, out) {
          if (!ignoring) { out.push(text); }
        },
        endDoc: function (out) {
          for (var i = stack.length; --i >= 0;) {
            out.push('</', stack[i], '>');
          }
          stack.length = 0;
        }
      });
  }

  // From RFC3986
  var URI_SCHEME_RE = new RegExp(
        "^" +
      "(?:" +
        "([^:\/?#]+)" +         // scheme
      ":)?"
      );

  /**
   * Strips unsafe tags and attributes from html.
   * @param {string} htmlText to sanitize
   * @param {Function} opt_uriPolicy -- a transform to apply to uri/url
   *     attribute values.  If no opt_uriPolicy is provided, no uris
   *     are allowed ie. the default uriPolicy rewrites all uris to null
   * @param {Function} opt_nmTokenPolicy : string -> string? -- a transform to
   *     apply to names, ids, and classes. If no opt_nmTokenPolicy is provided,
   *     all names, ids and classes are passed through ie. the default
   *     nmTokenPolicy is an identity transform
   * @return {string} html
   */
  function sanitize(htmlText, opt_uriPolicy, opt_nmTokenPolicy) {
    var out = [];
    makeHtmlSanitizer(
      function sanitizeAttribs(tagName, attribs) {
        for (var i = 0; i < attribs.length; i += 2) {
          var attribName = attribs[i];
          var value = attribs[i + 1];
          var atype = null, attribKey;
          if ((attribKey = tagName + '::' + attribName,
               html4.ATTRIBS.hasOwnProperty(attribKey))
              || (attribKey = '*::' + attribName,
                  html4.ATTRIBS.hasOwnProperty(attribKey))) {
            atype = html4.ATTRIBS[attribKey];
          }
          if (atype !== null) {
            switch (atype) {
              case html4.atype.NONE: break;
              case html4.atype.SCRIPT:
              case html4.atype.STYLE:
                value = null;
                break;
              case html4.atype.ID:
              case html4.atype.IDREF:
              case html4.atype.IDREFS:
              case html4.atype.GLOBAL_NAME:
              case html4.atype.LOCAL_NAME:
              case html4.atype.CLASSES:
                value = opt_nmTokenPolicy ? opt_nmTokenPolicy(value) : value;
                break;
              case html4.atype.URI:
                var parsedUri = ('' + value).match(URI_SCHEME_RE);
                if (!parsedUri) {
                  value = null;
                } else if (!parsedUri[1] ||
                    WHITELISTED_SCHEMES.test(parsedUri[1])) {
                  value = opt_uriPolicy && opt_uriPolicy(value);
                } else {
                  value = null;
                }
                break;
              case html4.atype.URI_FRAGMENT:
                if (value && '#' === value.charAt(0)) {
                  value = opt_nmTokenPolicy ? opt_nmTokenPolicy(value) : value;
                  if (value) { value = '#' + value; }
                } else {
                  value = null;
                }
                break;
              default:
                value = null;
                break;
            }
          } else {
            value = null;
          }
          attribs[i + 1] = value;
        }
        return attribs;
      })(htmlText, out);
    return out.join('');
  }

  return {
    escapeAttrib: escapeAttrib,
    makeHtmlSanitizer: makeHtmlSanitizer,
    makeSaxParser: makeSaxParser,
    normalizeRCData: normalizeRCData,
    sanitize: sanitize,
    unescapeEntities: unescapeEntities
  };
})(html4);

var html_sanitize = html.sanitize;

// Exports for closure compiler.  Note this file is also cajoled
// for domado and run in an environment without 'window'
if (typeof window !== 'undefined') {
  window['html'] = html;
  window['html_sanitize'] = html_sanitize;
}
// Loosen restrictions of Caja's
// html-sanitizer to allow for styling
html4.ATTRIBS['*::style'] = 0;
html4.ELEMENTS['style'] = 0;

html4.ATTRIBS['a::target'] = 0;

html4.ELEMENTS['video'] = 0;
html4.ATTRIBS['video::src'] = 0;
html4.ATTRIBS['video::poster'] = 0;
html4.ATTRIBS['video::controls'] = 0;

html4.ELEMENTS['audio'] = 0;
html4.ATTRIBS['audio::src'] = 0;
html4.ATTRIBS['video::autoplay'] = 0;
html4.ATTRIBS['video::controls'] = 0;
/*!
  * Reqwest! A general purpose XHR connection manager
  * (c) Dustin Diaz 2012
  * https://github.com/ded/reqwest
  * license MIT
  */
;(function (name, context, definition) {
  context[name] = definition()
})('reqwest', this, function () {

  var win = window
    , doc = document
    , twoHundo = /^20\d$/
    , byTag = 'getElementsByTagName'
    , readyState = 'readyState'
    , contentType = 'Content-Type'
    , requestedWith = 'X-Requested-With'
    , head = doc[byTag]('head')[0]
    , uniqid = 0
    , callbackPrefix = 'reqwest_' + (+new Date())
    , lastValue // data stored by the most recent JSONP callback
    , xmlHttpRequest = 'XMLHttpRequest'
    , noop = function () {}

    , isArray = typeof Array.isArray == 'function'
        ? Array.isArray
        : function (a) {
            return a instanceof Array
          }

    , defaultHeaders = {
          contentType: 'application/x-www-form-urlencoded'
        , requestedWith: xmlHttpRequest
        , accept: {
              '*':  'text/javascript, text/html, application/xml, text/xml, */*'
            , xml:  'application/xml, text/xml'
            , html: 'text/html'
            , text: 'text/plain'
            , json: 'application/json, text/javascript'
            , js:   'application/javascript, text/javascript'
          }
      }

    , xhr = win[xmlHttpRequest]
        ? function () {
            return new XMLHttpRequest()
          }
        : function () {
            return new ActiveXObject('Microsoft.XMLHTTP')
          }

  function handleReadyState (r, success, error) {
    return function () {
      // use _aborted to mitigate against IE err c00c023f
      // (can't read props on aborted request objects)
      if (r._aborted) return error(r.request)
      if (r.request && r.request[readyState] == 4) {
        r.request.onreadystatechange = noop
        if (twoHundo.test(r.request.status))
          success(r.request)
        else
          error(r.request)
      }
    }
  }

  function setHeaders (http, o) {
    var headers = o.headers || {}
      , h

    headers.Accept = headers.Accept
      || defaultHeaders.accept[o.type]
      || defaultHeaders.accept['*']

    // breaks cross-origin requests with legacy browsers
    if (!o.crossOrigin && !headers[requestedWith]) headers[requestedWith] = defaultHeaders.requestedWith
    if (!headers[contentType]) headers[contentType] = o.contentType || defaultHeaders.contentType
    for (h in headers)
      headers.hasOwnProperty(h) && http.setRequestHeader(h, headers[h])
  }

  function setCredentials (http, o) {
    if (typeof o.withCredentials !== 'undefined' && typeof http.withCredentials !== 'undefined') {
      http.withCredentials = !!o.withCredentials
    }
  }

  function generalCallback (data) {
    lastValue = data
  }

  function urlappend (url, s) {
    return url + (/\?/.test(url) ? '&' : '?') + s
  }

  function handleJsonp (o, fn, err, url) {
    var reqId = uniqid++
      , cbkey = o.jsonpCallback || 'callback' // the 'callback' key
      , cbval = o.jsonpCallbackName || reqwest.getcallbackPrefix(reqId)
      // , cbval = o.jsonpCallbackName || ('reqwest_' + reqId) // the 'callback' value
      , cbreg = new RegExp('((^|\\?|&)' + cbkey + ')=([^&]+)')
      , match = url.match(cbreg)
      , script = doc.createElement('script')
      , loaded = 0
      , isIE10 = navigator.userAgent.indexOf('MSIE 10.0') !== -1;

    if (match) {
      if (match[3] === '?') {
        url = url.replace(cbreg, '$1=' + cbval) // wildcard callback func name
      } else {
        cbval = match[3] // provided callback func name
      }
    } else {
      url = urlappend(url, cbkey + '=' + cbval) // no callback details, add 'em
    }

    win[cbval] = generalCallback

    script.type = 'text/javascript'
    if (typeof script.onreadystatechange !== 'undefined' && !isIE10) {
      // need this for IE due to out-of-order onreadystatechange(), binding script
      // execution to an event listener gives us control over when the script
      // is executed. See http://jaubourg.net/2010/07/loading-script-as-onclick-handler-of.html
      //
      // if this hack is used in IE10 jsonp callback are never called
      script.event = 'onclick'
      script.htmlFor = script.id = '_reqwest_' + reqId
    }

    script.onload = script.onreadystatechange = function () {
      if ((script[readyState] && script[readyState] !== 'complete' && script[readyState] !== 'loaded') || loaded) {
        return false
      }
      script.onload = script.onreadystatechange = null
      script.onclick && script.onclick()
      // Call the user callback with the last value stored and clean up values and scripts.
      o.success && o.success(lastValue)
      lastValue = undefined
      head.removeChild(script)
      loaded = 1
    }

    script.src = url
    script.async = true

    // Add the script to the DOM head
    head.appendChild(script)

    // Enable JSONP timeout
    return {
      abort: function () {
        script.onload = script.onreadystatechange = null
        o.error && o.error({}, 'Request is aborted: timeout', {})
        lastValue = undefined
        head.removeChild(script)
        loaded = 1
      }
    }
  }

  function getRequest (fn, err) {
    var o = this.o
      , method = (o.method || 'GET').toUpperCase()
      , url = typeof o === 'string' ? o : o.url
      // convert non-string objects to query-string form unless o.processData is false
      , data = (o.processData !== false && o.data && typeof o.data !== 'string')
        ? reqwest.toQueryString(o.data)
        : (o.data || null)
      , http

    // if we're working on a GET request and we have data then we should append
    // query string to end of URL and not post data
    if ((o.type == 'jsonp' || method == 'GET') && data) {
      url = urlappend(url, data)
      data = null
    }

    if (o.type == 'jsonp') return handleJsonp(o, fn, err, url)

    http = xhr()
    http.open(method, url, true)
    setHeaders(http, o)
    setCredentials(http, o)
    http.onreadystatechange = handleReadyState(this, fn, err)
    o.before && o.before(http)
    http.send(data)
    return http
  }

  function Reqwest (o, fn) {
    this.o = o
    this.fn = fn

    init.apply(this, arguments)
  }

  function setType (url) {
    var m = url.match(/\.(json|jsonp|html|xml)(\?|$)/)
    return m ? m[1] : 'js'
  }

  function init (o, fn) {

    this.url = typeof o == 'string' ? o : o.url
    this.timeout = null

    // whether request has been fulfilled for purpose
    // of tracking the Promises
    this._fulfilled = false
    // success handlers
    this._fulfillmentHandlers = []
    // error handlers
    this._errorHandlers = []
    // complete (both success and fail) handlers
    this._completeHandlers = []
    this._erred = false
    this._responseArgs = {}

    var self = this
      , type = o.type || setType(this.url)

    fn = fn || function () {}

    if (o.timeout) {
      this.timeout = setTimeout(function () {
        self.abort()
      }, o.timeout)
    }

    if (o.success) {
      this._fulfillmentHandlers.push(function () {
        o.success.apply(o, arguments)
      })
    }

    if (o.error) {
      this._errorHandlers.push(function () {
        o.error.apply(o, arguments)
      })
    }

    if (o.complete) {
      this._completeHandlers.push(function () {
        o.complete.apply(o, arguments)
      })
    }

    function complete (resp) {
      o.timeout && clearTimeout(self.timeout)
      self.timeout = null
      while (self._completeHandlers.length > 0) {
        self._completeHandlers.shift()(resp)
      }
    }

    function success (resp) {
      var r = resp.responseText
      if (r) {
        switch (type) {
        case 'json':
          try {
            resp = win.JSON ? win.JSON.parse(r) : eval('(' + r + ')')
          } catch (err) {
            return error(resp, 'Could not parse JSON in response', err)
          }
          break
        case 'js':
          resp = eval(r)
          break
        case 'html':
          resp = r
          break
        case 'xml':
          resp = resp.responseXML
              && resp.responseXML.parseError // IE trololo
              && resp.responseXML.parseError.errorCode
              && resp.responseXML.parseError.reason
            ? null
            : resp.responseXML
          break
        }
      }

      self._responseArgs.resp = resp
      self._fulfilled = true
      fn(resp)
      while (self._fulfillmentHandlers.length > 0) {
        self._fulfillmentHandlers.shift()(resp)
      }

      complete(resp)
    }

    function error (resp, msg, t) {
      self._responseArgs.resp = resp
      self._responseArgs.msg = msg
      self._responseArgs.t = t
      self._erred = true
      while (self._errorHandlers.length > 0) {
        self._errorHandlers.shift()(resp, msg, t)
      }
      complete(resp)
    }

    this.request = getRequest.call(this, success, error)
  }

  Reqwest.prototype = {
    abort: function () {
      this._aborted = true
      this.request.abort()
    }

  , retry: function () {
      init.call(this, this.o, this.fn)
    }

    /**
     * Small deviation from the Promises A CommonJs specification
     * http://wiki.commonjs.org/wiki/Promises/A
     */

    /**
     * `then` will execute upon successful requests
     */
  , then: function (success, fail) {
      if (this._fulfilled) {
        success(this._responseArgs.resp)
      } else if (this._erred) {
        fail(this._responseArgs.resp, this._responseArgs.msg, this._responseArgs.t)
      } else {
        this._fulfillmentHandlers.push(success)
        this._errorHandlers.push(fail)
      }
      return this
    }

    /**
     * `always` will execute whether the request succeeds or fails
     */
  , always: function (fn) {
      if (this._fulfilled || this._erred) {
        fn(this._responseArgs.resp)
      } else {
        this._completeHandlers.push(fn)
      }
      return this
    }

    /**
     * `fail` will execute when the request fails
     */
  , fail: function (fn) {
      if (this._erred) {
        fn(this._responseArgs.resp, this._responseArgs.msg, this._responseArgs.t)
      } else {
        this._errorHandlers.push(fn)
      }
      return this
    }
  }

  function reqwest (o, fn) {
    return new Reqwest(o, fn)
  }

  // normalize newline variants according to spec -> CRLF
  function normalize (s) {
    return s ? s.replace(/\r?\n/g, '\r\n') : ''
  }

  function serial (el, cb) {
    var n = el.name
      , t = el.tagName.toLowerCase()
      , optCb = function (o) {
          // IE gives value="" even where there is no value attribute
          // 'specified' ref: http://www.w3.org/TR/DOM-Level-3-Core/core.html#ID-862529273
          if (o && !o.disabled)
            cb(n, normalize(o.attributes.value && o.attributes.value.specified ? o.value : o.text))
        }
      , ch, ra, val, i

    // don't serialize elements that are disabled or without a name
    if (el.disabled || !n) return

    switch (t) {
    case 'input':
      if (!/reset|button|image|file/i.test(el.type)) {
        ch = /checkbox/i.test(el.type)
        ra = /radio/i.test(el.type)
        val = el.value
        // WebKit gives us "" instead of "on" if a checkbox has no value, so correct it here
        ;(!(ch || ra) || el.checked) && cb(n, normalize(ch && val === '' ? 'on' : val))
      }
      break
    case 'textarea':
      cb(n, normalize(el.value))
      break
    case 'select':
      if (el.type.toLowerCase() === 'select-one') {
        optCb(el.selectedIndex >= 0 ? el.options[el.selectedIndex] : null)
      } else {
        for (i = 0; el.length && i < el.length; i++) {
          el.options[i].selected && optCb(el.options[i])
        }
      }
      break
    }
  }

  // collect up all form elements found from the passed argument elements all
  // the way down to child elements; pass a '<form>' or form fields.
  // called with 'this'=callback to use for serial() on each element
  function eachFormElement () {
    var cb = this
      , e, i
      , serializeSubtags = function (e, tags) {
          var i, j, fa
          for (i = 0; i < tags.length; i++) {
            fa = e[byTag](tags[i])
            for (j = 0; j < fa.length; j++) serial(fa[j], cb)
          }
        }

    for (i = 0; i < arguments.length; i++) {
      e = arguments[i]
      if (/input|select|textarea/i.test(e.tagName)) serial(e, cb)
      serializeSubtags(e, [ 'input', 'select', 'textarea' ])
    }
  }

  // standard query string style serialization
  function serializeQueryString () {
    return reqwest.toQueryString(reqwest.serializeArray.apply(null, arguments))
  }

  // { 'name': 'value', ... } style serialization
  function serializeHash () {
    var hash = {}
    eachFormElement.apply(function (name, value) {
      if (name in hash) {
        hash[name] && !isArray(hash[name]) && (hash[name] = [hash[name]])
        hash[name].push(value)
      } else hash[name] = value
    }, arguments)
    return hash
  }

  // [ { name: 'name', value: 'value' }, ... ] style serialization
  reqwest.serializeArray = function () {
    var arr = []
    eachFormElement.apply(function (name, value) {
      arr.push({name: name, value: value})
    }, arguments)
    return arr
  }

  reqwest.serialize = function () {
    if (arguments.length === 0) return ''
    var opt, fn
      , args = Array.prototype.slice.call(arguments, 0)

    opt = args.pop()
    opt && opt.nodeType && args.push(opt) && (opt = null)
    opt && (opt = opt.type)

    if (opt == 'map') fn = serializeHash
    else if (opt == 'array') fn = reqwest.serializeArray
    else fn = serializeQueryString

    return fn.apply(null, args)
  }

  reqwest.toQueryString = function (o) {
    var qs = '', i
      , enc = encodeURIComponent
      , push = function (k, v) {
          qs += enc(k) + '=' + enc(v) + '&'
        }
      , k, v

    if (isArray(o)) {
      for (i = 0; o && i < o.length; i++) push(o[i].name, o[i].value)
    } else {
      for (k in o) {
        if (!Object.hasOwnProperty.call(o, k)) continue
        v = o[k]
        if (isArray(v)) {
          for (i = 0; i < v.length; i++) push(k, v[i])
        } else push(k, o[k])
      }
    }

    // spaces should be + according to spec
    return qs.replace(/&$/, '').replace(/%20/g, '+')
  }

  reqwest.getcallbackPrefix = function () {
    return callbackPrefix
  }

  // jQuery and Zepto compatibility, differences can be remapped here so you can call
  // .ajax.compat(options, callback)
  reqwest.compat = function (o, fn) {
    if (o) {
      o.type && (o.method = o.type) && delete o.type
      o.dataType && (o.type = o.dataType)
      o.jsonpCallback && (o.jsonpCallbackName = o.jsonpCallback) && delete o.jsonpCallback
      o.jsonp && (o.jsonpCallback = o.jsonp)
    }
    return new Reqwest(o, fn)
  }

  return reqwest
})
;wax = wax || {};

// Attribution
// -----------
wax.attribution = function() {
    var a = {};

    var container = document.createElement('div');
    container.className = 'map-attribution';

    a.content = function(x) {
        if (typeof x === 'undefined') return container.innerHTML;
        container.innerHTML = wax.u.sanitize(x);
        return this;
    };

    a.element = function() {
        return container;
    };

    a.init = function() {
        return this;
    };

    return a;
};
wax = wax || {};

// Attribution
// -----------
wax.bwdetect = function(options, callback) {
    var detector = {},
        threshold = options.threshold || 400,
        // test image: 30.29KB
        testImage = 'http://a.tiles.mapbox.com/mapbox/1.0.0/blue-marble-topo-bathy-jul/0/0/0.png?preventcache=' + (+new Date()),
        // High-bandwidth assumed
        // 1: high bandwidth (.png, .jpg)
        // 0: low bandwidth (.png128, .jpg70)
        bw = 1,
        // Alternative versions
        auto = options.auto === undefined ? true : options.auto;

    function bwTest() {
        wax.bw = -1;
        var im = new Image();
        im.src = testImage;
        var first = true;
        var timeout = setTimeout(function() {
            if (first && wax.bw == -1) {
                detector.bw(0);
                first = false;
            }
        }, threshold);
        im.onload = function() {
            if (first && wax.bw == -1) {
                clearTimeout(timeout);
                detector.bw(1);
                first = false;
            }
        };
    }

    detector.bw = function(x) {
        if (!arguments.length) return bw;
        var oldBw = bw;
        if (wax.bwlisteners && wax.bwlisteners.length) (function () {
            listeners = wax.bwlisteners;
            wax.bwlisteners = [];
            for (i = 0; i < listeners; i++) {
                listeners[i](x);
            }
        })();
        wax.bw = x;

        if (bw != (bw = x)) callback(x);
    };

    detector.add = function() {
        if (auto) bwTest();
        return this;
    };

    if (wax.bw == -1) {
      wax.bwlisteners = wax.bwlisteners || [];
      wax.bwlisteners.push(detector.bw);
    } else if (wax.bw !== undefined) {
        detector.bw(wax.bw);
    } else {
        detector.add();
    }
    return detector;
};
// Formatter
// ---------
//
// This code is no longer the recommended code path for Wax -
// see `template.js`, a safe implementation of Mustache templates.
wax.formatter = function(x) {
    var formatter = {},
        f;

    // Prevent against just any input being used.
    if (x && typeof x === 'string') {
        try {
            // Ugly, dangerous use of eval.
            eval('f = ' + x);
        } catch (e) {
            if (console) console.log(e);
        }
    } else if (x && typeof x === 'function') {
        f = x;
    } else {
        f = function() {};
    }

    // Wrap the given formatter function in order to
    // catch exceptions that it may throw.
    formatter.format = function(options, data) {
        try {
            return wax.u.sanitize(f(options, data));
        } catch (e) {
            if (console) console.log(e);
        }
    };

    return formatter;
};
// GridInstance
// ------------
// GridInstances are queryable, fully-formed
// objects for acquiring features from events.
//
// This code ignores format of 1.1-1.2
wax.gi = function(grid_tile, options) {
    options = options || {};
    // resolution is the grid-elements-per-pixel ratio of gridded data.
    // The size of a tile element. For now we expect tiles to be squares.
    var instance = {},
        resolution = options.resolution || 4,
        tileSize = options.tileSize || 256;

    // Resolve the UTF-8 encoding stored in grids to simple
    // number values.
    // See the [utfgrid spec](https://github.com/mapbox/utfgrid-spec)
    // for details.
    function resolveCode(key) {
        if (key >= 93) key--;
        if (key >= 35) key--;
        key -= 32;
        return key;
    }

    instance.grid_tile = function() {
        return grid_tile;
    };

    instance.getKey = function(x, y) {
        if (!(grid_tile && grid_tile.grid)) return;
        if ((y < 0) || (x < 0)) return;
        if ((Math.floor(y) >= tileSize) ||
            (Math.floor(x) >= tileSize)) return;
        // Find the key in the grid. The above calls should ensure that
        // the grid's array is large enough to make this work.
        return resolveCode(grid_tile.grid[
           Math.floor((y) / resolution)
        ].charCodeAt(
           Math.floor((x) / resolution)
        ));
    };

    // Lower-level than tileFeature - has nothing to do
    // with the DOM. Takes a px offset from 0, 0 of a grid.
    instance.gridFeature = function(x, y) {
        // Find the key in the grid. The above calls should ensure that
        // the grid's array is large enough to make this work.
        var key = this.getKey(x, y),
            keys = grid_tile.keys;

        if (keys &&
            keys[key] &&
            grid_tile.data[keys[key]]) {
            return grid_tile.data[keys[key]];
        }
    };

    // Get a feature:
    // * `x` and `y`: the screen coordinates of an event
    // * `tile_element`: a DOM element of a tile, from which we can get an offset.
    instance.tileFeature = function(x, y, tile_element) {
        if (!grid_tile) return;
        // IE problem here - though recoverable, for whatever reason
        var offset = wax.u.offset(tile_element);
            feature = this.gridFeature(x - offset.left, y - offset.top);
        return feature;
    };

    return instance;
};
// GridManager
// -----------
// Generally one GridManager will be used per map.
//
// It takes one options object, which current accepts a single option:
// `resolution` determines the number of pixels per grid element in the grid.
// The default is 4.
wax.gm = function() {

    var resolution = 4,
        grid_tiles = {},
        manager = {},
        tilejson,
        formatter;

    var gridUrl = function(url) {
        if (url) {
            return url.replace(/(\.png|\.jpg|\.jpeg)(\d*)/, '.grid.json');
        }
    };

    function templatedGridUrl(template) {
        if (typeof template === 'string') template = [template];
        return function templatedGridFinder(url) {
            if (!url) return;
            var rx = new RegExp(manager.tileRegexp())
            var xyz = rx.exec(url);
            if (!xyz) return;
            return template[parseInt(xyz[2], 10) % template.length]
                .replace(/\{z\}/g, xyz[1])
                .replace(/\{x\}/g, xyz[2])
                .replace(/\{y\}/g, xyz[3]);
        };
    }

    // return the regexp to catch the tile number given the url
    manager.tileRegexp = function() {
      var tileTemplate = tilejson.tiles[0];
      // remove params
      var p = tileTemplate.indexOf('?');
      if(p !== -1) {
        tileTemplate = tileTemplate.substr(0, p);
      }
      // remove from the url all the special characters
      // replacing them by a dot (dont mind the character)
      tileTemplate = tileTemplate.
                        replace(/[\(\)\?\$\*\+\^]/g,'.')

      // the browser removes the port in the case it matchs with
      // the default port of the protocol
      if(tileTemplate.indexOf('https') === 0) {
        tileTemplate = tileTemplate.replace(':443', '[:0-9]*')
      } else if(tileTemplate.indexOf('http') === 0) {
        tileTemplate = tileTemplate.replace(':80', '[:0-9]*')
      }

      var r = '';
      if(tilejson.tiles.length > 1) {
        var t0 = tilejson.tiles[0];
        var t1 = tilejson.tiles[1];
        //search characters where differs
        for(var i = 0; i < t0.length; ++i) {
          if(t0.charAt(i) != t1.charAt(i)) {
            r += '.';
          } else {
            r += tileTemplate.charAt(i) || '';
          }
        }
      } else {
        r = tileTemplate;
      }

      // replace the first {x}{y}{z} by (\\d+)
      return r
        .replace(/\{x\}/,'(\\d+)')
        .replace(/\{y\}/,'(\\d+)')
        .replace(/\{z\}/,'(\\d+)')
    }

    manager.formatter = function(x) {
        if (!arguments.length) return formatter;
        formatter =  wax.formatter(x);
        return manager;
    };

    manager.template = function(x) {
        if (!arguments.length) return formatter;
        formatter = wax.template(x);
        return manager;
    };

    manager.gridUrl = function(x) {
        // Getter-setter
        if (!arguments.length) return gridUrl;

        // Handle tilesets that don't support grids
        if (!x) {
            gridUrl = function() { return null; };
        } else {
            gridUrl = typeof x === 'function' ?
                x : templatedGridUrl(x);
        }
        return manager;
    };

    manager.getGrid = function(url, callback) {
        var gurl = gridUrl(url);
        if (!formatter || !gurl) return callback(null, null);

        wax.request.get(gurl, function(err, t) {
            if (err) return callback(err, null);
            callback(null, wax.gi(t, {
                formatter: formatter,
                resolution: resolution
            }));
        });
        return manager;
    };

    manager.tilejson = function(x) {
        if (!arguments.length) return tilejson;
        // prefer templates over formatters
        if (x.template) {
            manager.template(x.template);
        } else if (x.formatter) {
            manager.formatter(x.formatter);
        } else {
            // In this case, we cannot support grids
            formatter = undefined;
        }
        manager.gridUrl(x.grids);
        if (x.resolution) resolution = x.resolution;
        tilejson = x;
        return manager;
    };

    return manager;
};
wax = wax || {};

// Hash
// ----
wax.hash = function(options) {
    options = options || {};

    var s0, // old hash
        hash = {},
        lat = 90 - 1e-8;  // allowable latitude range

    function getState() {
        return location.hash.substring(1);
    }

    function pushState(state) {
        var l = window.location;
        l.replace(l.toString().replace((l.hash || /$/), '#' + state));
    }

    function parseHash(s) {
        var args = s.split('/');
        for (var i = 0; i < args.length; i++) {
            args[i] = Number(args[i]);
            if (isNaN(args[i])) return true;
        }
        if (args.length < 3) {
            // replace bogus hash
            return true;
        } else if (args.length == 3) {
            options.setCenterZoom(args);
        }
    }

    function move() {
        var s1 = options.getCenterZoom();
        if (s0 !== s1) {
            s0 = s1;
            // don't recenter the map!
            pushState(s0);
        }
    }

    function stateChange(state) {
        // ignore spurious hashchange events
        if (state === s0) return;
        if (parseHash(s0 = state)) {
            // replace bogus hash
            move();
        }
    }

    var _move = wax.u.throttle(move, 500);

    hash.add = function() {
        stateChange(getState());
        options.bindChange(_move);
        return hash;
    };

    hash.remove = function() {
        options.unbindChange(_move);
        return hash;
    };

    return hash;
};
wax = wax || {};

wax.interaction = function() {
    var gm = wax.gm(),
        interaction = {},
        _downLock = false,
        _clickTimeout = null,
        // Active feature
        // Down event
        _d,
        // Touch tolerance
        tol = 4,
        grid,
        attach,
        detach,
        parent,
        map,
        tileGrid,
        // google maps sends touchmove and click at the same time 
        // most of the time when an user taps the screen, see onUp 
        // for more information
        _discardTouchMove = false;

    var defaultEvents = {
        mousemove: onMove,
        touchstart: onDown,
        mousedown: onDown
    };

    var touchEnds = {
        touchend: onUp,
        touchmove: onUp,
        touchcancel: touchCancel
    };

    var mspointerEnds = {
        MSPointerUp: onUp,
        MSPointerMove: onUp,
        MSPointerCancel: touchCancel
    };

    var pointerEnds = {
        pointerup: onUp,
        pointermove: onUp,
        pointercancel: touchCancel
    };

    // Abstract getTile method. Depends on a tilegrid with
    // grid[ [x, y, tile] ] structure.
    function getTile(e) {
        var g = grid();
        var regExp = new RegExp(gm.tileRegexp());
        for (var i = 0; i < g.length; i++) {
            if (e) {
                var isInside = ((g[i][0] <= e.y) &&
                     ((g[i][0] + 256) > e.y) &&
                      (g[i][1] <= e.x) &&
                     ((g[i][1] + 256) > e.x));
                if(isInside && regExp.exec(g[i][2].src)) {
                    return g[i][2];
                }
            }
        }
        return false;
    }

    // Clear the double-click timeout to prevent double-clicks from
    // triggering popups.
    function killTimeout() {
        if (_clickTimeout) {
            window.clearTimeout(_clickTimeout);
            _clickTimeout = null;
            return true;
        } else {
            return false;
        }
    }

    function onMove(e) {
        // If the user is actually dragging the map, exit early
        // to avoid performance hits.
        if (_downLock) return;

        var _e = (e.type !== "MSPointerMove" && e.type !== "pointermove" ? e : e.originalEvent);
        var pos = wax.u.eventoffset(_e);

        interaction.screen_feature(pos, function(feature) {
            if (feature) {
                bean.fire(interaction, 'on', {
                    parent: parent(),
                    data: feature,
                    formatter: gm.formatter().format,
                    e: e
                });
            } else {
                bean.fire(interaction, 'off');
            }
        });
    }

    // A handler for 'down' events - which means `mousedown` and `touchstart`
    function onDown(e) {

        // Prevent interaction offset calculations happening while
        // the user is dragging the map.
        //
        // Store this event so that we can compare it to the
        // up event
        _downLock = true;
        var _e = (e.type !== "MSPointerDown" && e.type !== "pointerdown" ? e : e.originalEvent); 
        _d = wax.u.eventoffset(_e);
        if (e.type === 'mousedown') {
            bean.add(document.body, 'click', onUp);
            // track mouse up to remove lockDown when the drags end
            bean.add(document.body, 'mouseup', dragEnd);

        // Only track single-touches. Double-touches will not affect this
        // control
        } else if (e.type === 'touchstart' && e.touches.length === 1) {
            //GMaps fix: Because it's triggering always mousedown and click, we've to remove it
            bean.remove(document.body, 'click', onUp); //GMaps fix

            //When we finish dragging, then the click will be 
            bean.add(document.body, 'click', onUp);
            bean.add(document.body, 'touchEnd', dragEnd);
        } else if (e.originalEvent.type === "MSPointerDown" && e.originalEvent.touches && e.originalEvent.touches.length === 1) {
          // Don't make the user click close if they hit another tooltip
            bean.fire(interaction, 'off');
            // Touch moves invalidate touches
            bean.add(parent(), mspointerEnds);
        } else if (e.type === "pointerdown" && e.originalEvent.touches && e.originalEvent.touches.length === 1) {
            // Don't make the user click close if they hit another tooltip
            bean.fire(interaction, 'off');
            // Touch moves invalidate touches
            bean.add(parent(), pointerEnds);
        } else {
            // Fix layer interaction in IE10/11 (CDBjs #139)
            // Reason: Internet Explorer is triggering pointerdown when you click on the marker, and other browsers don't.
            // Because of that, _downLock was active and it believed that you're dragging the map, instead of dragging the marker
            _downLock = false;
        }

    }

    function dragEnd() {
        _downLock = false;
    }

    function touchCancel() {
        bean.remove(parent(), touchEnds);
        bean.remove(parent(), mspointerEnds);
        bean.remove(parent(), pointerEnds);
        _downLock = false;
    }

    function onUp(e) {
        var evt = {};
        var _e = (e.type !== "MSPointerMove" && e.type !== "MSPointerUp" && e.type !== "pointerup" && e.type !== "pointermove" ? e : e.originalEvent);
        var pos = wax.u.eventoffset(_e);
        _downLock = false;

        for (var key in _e) {
          evt[key] = _e[key];
        }

        // for (var key in e) {
        //   evt[key] = e[key];
        // }

        bean.remove(document.body, 'mouseup', onUp);
        bean.remove(parent(), touchEnds);
        bean.remove(parent(), mspointerEnds);
        bean.remove(parent(), pointerEnds);

        if (e.type === 'touchend') {
            // If this was a touch and it survived, there's no need to avoid a double-tap
            // but also wax.u.eventoffset will have failed, since this touch
            // event doesn't have coordinates
            interaction.click(e, _d);
        } else if (pos && _d) {
          // If pos is not defined means wax can't calculate event position,
          // So next cases aren't possible.

          if (evt.type === "MSPointerMove" || evt.type === "MSPointerUp") {
            evt.changedTouches = [];
            interaction.click(evt, pos);
          } else if (evt.type === "pointermove" || evt.type === "pointerup") {
            interaction.click(evt, pos);
          } else if (Math.round(pos.y / tol) === Math.round(_d.y / tol) &&
            Math.round(pos.x / tol) === Math.round(_d.x / tol)) {
            // if mousemove and click are sent at the same time this code
            // will not trigger click event because less than 150ms pass between
            // those events.
            // Because of that this flag discards touchMove
            if (_discardTouchMove && evt.type === 'touchmove') return onUp;
            // Contain the event data in a closure.
            // Ignore double-clicks by ignoring clicks within 300ms of
            // each other.
            if(!_clickTimeout) {
              _clickTimeout = window.setTimeout(function() {
                  _clickTimeout = null;
                  interaction.click(evt, pos);
              }, 150);
            } else {
              killTimeout();
            }
          }

        }

        return onUp;
    }

    interaction.discardTouchMove = function(_) {
      if (!arguments.length) return _discardTouchMove;
      _discardTouchMove = _;
      return interaction;
    }

    // Handle a click event. Takes a second
    interaction.click = function(e, pos) {
        interaction.screen_feature(pos, function(feature) {
            if (feature) bean.fire(interaction, 'on', {
                parent: parent(),
                data: feature,
                formatter: gm.formatter().format,
                e: e
            });
        });
    };

    interaction.screen_feature = function(pos, callback) {
        var tile = getTile(pos);
        if (!tile) callback(null);
        gm.getGrid(tile.src, function(err, g) {
            if (err || !g) return callback(null);
            var feature = g.tileFeature(pos.x, pos.y, tile);
            callback(feature);
        });
    };

    // set an attach function that should be
    // called when maps are set
    interaction.attach = function(x) {
        if (!arguments.length) return attach;
        attach = x;
        return interaction;
    };

    interaction.detach = function(x) {
        if (!arguments.length) return detach;
        detach = x;
        return interaction;
    };

    // Attach listeners to the map
    interaction.map = function(x) {
        if (!arguments.length) return map;
        map = x;
        if (attach) attach(map);
        bean.add(parent(), defaultEvents);
        bean.add(parent(), 'touchstart', onDown);
        bean.add(parent(), 'MSPointerDown', onDown);
        bean.add(parent(), 'pointerdown', onDown);
        return interaction;
    };

    // set a grid getter for this control
    interaction.grid = function(x) {
        if (!arguments.length) return grid;
        grid = x;
        return interaction;
    };

    // detach this and its events from the map cleanly
    interaction.remove = function(x) {
        if (detach) detach(map);
        bean.remove(parent(), defaultEvents);
        bean.fire(interaction, 'remove');
        return interaction;
    };

    // get or set a tilejson chunk of json
    interaction.tilejson = function(x) {
        if (!arguments.length) return gm.tilejson();
        gm.tilejson(x);
        return interaction;
    };

    // return the formatter, which has an exposed .format
    // function
    interaction.formatter = function() {
        return gm.formatter();
    };

    // ev can be 'on', 'off', fn is the handler
    interaction.on = function(ev, fn) {
        bean.add(interaction, ev, fn);
        return interaction;
    };

    // ev can be 'on', 'off', fn is the handler
    interaction.off = function(ev, fn) {
        bean.remove(interaction, ev, fn);
        return interaction;
    };

    // Return or set the gridmanager implementation
    interaction.gridmanager = function(x) {
        if (!arguments.length) return gm;
        gm = x;
        return interaction;
    };

    // parent should be a function that returns
    // the parent element of the map
    interaction.parent  = function(x) {
        parent = x;
        return interaction;
    };

    return interaction;
};
var wax = wax || {};

wax.location = function() {

    var t = {};

    function on(o) {
        if ((o.e.type === 'mousemove' || !o.e.type)) {
            return;
        } else {
            var loc = o.formatter({ format: 'location' }, o.data);
            if (loc) {
                window.location.href = loc;
            }
        }
    }

    t.events = function() {
        return {
            on: on
        };
    };

    return t;

};
// Wax GridUtil
// ------------

// Wax header
var wax = wax || {};

// Request
// -------
// Request data cache. `callback(data)` where `data` is the response data.
wax.request = {
    cache: {},
    locks: {},
    promises: {},
    get: function(url, callback) {
        // Cache hit.
        if (this.cache[url]) {
            return callback(this.cache[url][0], this.cache[url][1]);
        // Cache miss.
        } else {
            this.promises[url] = this.promises[url] || [];
            this.promises[url].push(callback);
            // Lock hit.
            if (this.locks[url]) return;
            // Request.
            var that = this;
            this.locks[url] = true;
            reqwest({
                url: url + (~url.indexOf('?') ? '&' : '?') + 'callback=grid',
                type: 'jsonp',
                jsonpCallback: 'callback',
                success: function(data) {
                    that.locks[url] = false;
                    that.cache[url] = [null, data];
                    for (var i = 0; i < that.promises[url].length; i++) {
                        that.promises[url][i](that.cache[url][0], that.cache[url][1]);
                    }
                },
                error: function(err) {
                    that.locks[url] = false;
                    that.cache[url] = [err, null];
                    for (var i = 0; i < that.promises[url].length; i++) {
                        that.promises[url][i](that.cache[url][0], that.cache[url][1]);
                    }
                }
            });
        }
    }
};
// Templating
// ---------
wax.template = function(x) {
    var template = {};

    // Clone the data object such that the '__[format]__' key is only
    // set for this instance of templating.
    template.format = function(options, data) {

        // mustache.js has been removed as a dependency
        throw new Error('mustache.js templates are no longer supported');

        // var clone = {};
        // for (var key in data) {
        //     clone[key] = data[key];
        // }
        // if (options.format) {
        //     clone['__' + options.format + '__'] = true;
        // }
        // return wax.u.sanitize(Mustache.to_html(x, clone));
    };

    return template;
};
if (!wax) var wax = {};

// A wrapper for reqwest jsonp to easily load TileJSON from a URL.
wax.tilejson = function(url, callback) {
    reqwest({
        url: url + (~url.indexOf('?') ? '&' : '?') + 'callback=grid',
        type: 'jsonp',
        jsonpCallback: 'callback',
        success: callback,
        error: callback
    });
};
var wax = wax || {};

// Utils are extracted from other libraries or
// written from scratch to plug holes in browser compatibility.
wax.u = {
    // From Bonzo
    offset: function(el) {
        // TODO: window margins
        //
        // Okay, so fall back to styles if offsetWidth and height are botched
        // by Firefox.
        var width = el.offsetWidth || parseInt(el.style.width, 10),
            height = el.offsetHeight || parseInt(el.style.height, 10),
            doc_body = document.body,
            top = 0,
            left = 0;

        var calculateOffset = function(el) {
            if (el === doc_body || el === document.documentElement) return;
            top += el.offsetTop;
            left += el.offsetLeft;

            var style = el.style.transform ||
                el.style.WebkitTransform ||
                el.style.OTransform ||
                el.style.MozTransform ||
                el.style.msTransform;

            if (style) {
                var match;
                if (match = style.match(/translate\((.+)px, (.+)px\)/)) {
                    top += parseInt(match[2], 10);
                    left += parseInt(match[1], 10);
                } else if (match = style.match(/translate3d\((.+)px, (.+)px, (.+)px\)/)) {
                    top += parseInt(match[2], 10);
                    left += parseInt(match[1], 10);
                } else if (match = style.match(/matrix3d\(([\-\d,\s]+)\)/)) {
                    var pts = match[1].split(',');
                    top += parseInt(pts[13], 10);
                    left += parseInt(pts[12], 10);
                } else if (match = style.match(/matrix\(.+, .+, .+, .+, (.+), (.+)\)/)) {
                    top += parseInt(match[2], 10);
                    left += parseInt(match[1], 10);
                }
            }
        };

        //Function that protects 'Unspected error' with Internet Explorer 11
        function calculateOffsetIE(){
          calculateOffset(el);
          try {
              while (el = el.offsetParent) { calculateOffset(el); }
          } catch(e) {
              // Hello, internet explorer.
          }
        }

        // from jquery, offset.js
        if ( typeof el.getBoundingClientRect !== "undefined" ) {
          var body = document.body;
          var doc = el.ownerDocument.documentElement;
          var clientTop  = document.clientTop  || body.clientTop  || 0;
          var clientLeft = document.clientLeft || body.clientLeft || 0;
          var scrollTop  = window.pageYOffset || doc.scrollTop;
          var scrollLeft = window.pageXOffset || doc.scrollLeft;

          //With Internet Explorer 11, the function getBoundingClientRect() sometimes
          //triggers the error: 'Unspected error.' Protecting it with try/catch
          try {
              var box = el.getBoundingClientRect();
              top = box.top + scrollTop  - clientTop;
              left = box.left + scrollLeft - clientLeft;
          } catch(e) {
              calculateOffsetIE();
          }
        } else {
          calculateOffsetIE();
        }

        // Offsets from the body
        top += doc_body.offsetTop;
        left += doc_body.offsetLeft;
        // Offsets from the HTML element
        top += doc_body.parentNode.offsetTop;
        left += doc_body.parentNode.offsetLeft;

        // Firefox and other weirdos. Similar technique to jQuery's
        // `doesNotIncludeMarginInBodyOffset`.
        var htmlComputed = document.defaultView ?
            window.getComputedStyle(doc_body.parentNode, null) :
            doc_body.parentNode.currentStyle;
        if (doc_body.parentNode.offsetTop !==
            parseInt(htmlComputed.marginTop, 10) &&
            !isNaN(parseInt(htmlComputed.marginTop, 10))) {
            top += parseInt(htmlComputed.marginTop, 10);
            left += parseInt(htmlComputed.marginLeft, 10);
        }

        return {
            top: top,
            left: left,
            height: height,
            width: width
        };
    },

    '$': function(x) {
        return (typeof x === 'string') ?
            document.getElementById(x) :
            x;
    },

    // From quirksmode: normalize the offset of an event from the top-left
    // of the page.
    eventoffset: function(e) {
        var posx = 0;
        var posy = 0;
        if (!e) { e = window.event; }
        if (e.type == "MSPointerMove" || e.type == "MSPointerDown" || e.type == "MSPointerUp") {
          return {
            x: e.pageX + window.pageXOffset,
            y: e.pageY + window.pageYOffset
          }
        }
        if (e.pageX || e.pageY) {
            // Good browsers
            return {
                x: e.pageX,
                y: e.pageY
            };
        } else if (e.clientX || e.clientY) {
            // Internet Explorer
            return {
                x: e.clientX,
                y: e.clientY
            };
        } else if (e.touches && e.touches.length === 1) {
            // Touch browsers
            return {
                x: e.touches[0].pageX,
                y: e.touches[0].pageY
            };
        }
    },

    // Ripped from underscore.js
    // Internal function used to implement `_.throttle` and `_.debounce`.
    limit: function(func, wait, debounce) {
        var timeout;
        return function() {
            var context = this, args = arguments;
            var throttler = function() {
                timeout = null;
                func.apply(context, args);
            };
            if (debounce) clearTimeout(timeout);
            if (debounce || !timeout) timeout = setTimeout(throttler, wait);
        };
    },

    // Returns a function, that, when invoked, will only be triggered at most once
    // during a given window of time.
    throttle: function(func, wait) {
        return this.limit(func, wait, false);
    },

    sanitize: function(content) {
        if (!content) return '';

        function urlX(url) {
            // Data URIs are subject to a bug in Firefox
            // https://bugzilla.mozilla.org/show_bug.cgi?id=255107
            // which let them be a vector. But WebKit does 'the right thing'
            // or at least 'something' about this situation, so we'll tolerate
            // them.
            if (/^(https?:\/\/|data:image)/.test(url)) {
                return url;
            }
        }

        function idX(id) { return id; }

        return html_sanitize(content, urlX, idX);
    }
};
wax = wax || {};
wax.leaf = wax.leaf || {};

wax.leaf.hash = function(map) {
    return wax.hash({
        getCenterZoom: function () {
            var center = map.getCenter(),
                zoom = map.getZoom(),
                precision = Math.max(
                    0,
                    Math.ceil(Math.log(zoom) / Math.LN2));

            return [
                zoom,
                center.lat.toFixed(precision),
                center.lng.toFixed(precision)
            ].join('/');
        },

        setCenterZoom: function (args) {
            map.setView(new L.LatLng(args[1], args[2]), args[0]);
        },

        bindChange: function (fn) {
            map.on('moveend', fn);
        },

        unbindChange: function (fn) {
            map.off('moveend', fn);
        }
    });
};
wax = wax || {};
wax.leaf = wax.leaf || {};

wax.leaf.interaction = function() {
    var dirty = false, _grid, map;

    function setdirty() { dirty = true; }

    function grid() {
        // TODO: don't build for tiles outside of viewport
        // Touch interaction leads to intermediate
        //var zoomLayer = map.createOrGetLayer(Math.round(map.getZoom())); //?what is this doing?
        // Calculate a tile grid and cache it, by using the `.tiles`
        // element on this map.
        if (!dirty && _grid) {
            return _grid;
        } else {
            return (_grid = (function(layers) {
                var o = [];
                for (var layerId in layers) {
                    // This only supports tiled layers
                    if (layers[layerId]._tiles) {
                        for (var tile in layers[layerId]._tiles) {
                            var _tile = layers[layerId]._tiles[tile];
                            // avoid adding tiles without src, grid url can't be found for them
                            if(_tile.src) {
                              var offset = wax.u.offset(_tile);
                              o.push([offset.top, offset.left, _tile]);
                            }
                        }
                    }
                }
                return o;
            })(map._layers));
        }
    }

    function attach(x) {
        if (!arguments.length) return map;
        map = x;
        var l = ['moveend'];
        for (var i = 0; i < l.length; i++) {
            map.on(l[i], setdirty);
        }
    }

    function detach(x) {
        if (!arguments.length) return map;
        map = x;
        var l = ['moveend'];
        for (var i = 0; i < l.length; i++) {
            map.off(l[i], setdirty);
        }
    }

    return wax.interaction()
        .attach(attach)
        .detach(detach)
        .parent(function() {
          return map._container;
        })
        .grid(grid);
};
wax = wax || {};
wax.leaf = wax.leaf || {};

wax.leaf.connector = L.TileLayer.extend({
    initialize: function(options) {
        options = options || {};
        options.minZoom = options.minzoom || 0;
        options.maxZoom = options.maxzoom || 22;
        L.TileLayer.prototype.initialize.call(this, options.tiles[0], options);
    }
});
wax = wax || {};
wax.g = wax.g || {};

// Attribution
// -----------
// Attribution wrapper for Google Maps.
wax.g.attribution = function(map, tilejson) {
    tilejson = tilejson || {};
    var a, // internal attribution control
        attribution = {};

    attribution.element = function() {
        return a.element();
    };

    attribution.appendTo = function(elem) {
        wax.u.$(elem).appendChild(a.element());
        return this;
    };

    attribution.init = function() {
        a = wax.attribution();
        a.content(tilejson.attribution);
        a.element().className = 'map-attribution map-g';
        return this;
    };

    return attribution.init();
};
wax = wax || {};
wax.g = wax.g || {};

// Bandwidth Detection
// ------------------
wax.g.bwdetect = function(map, options) {
    options = options || {};
    var lowpng = options.png || '.png128',
        lowjpg = options.jpg || '.jpg70';

    // Create a low-bandwidth map type.
    if (!map.mapTypes['mb-low']) {
        var mb = map.mapTypes.mb;
        var tilejson = {
            tiles: [],
            scheme: mb.options.scheme,
            blankImage: mb.options.blankImage,
            minzoom: mb.minZoom,
            maxzoom: mb.maxZoom,
            name: mb.name,
            description: mb.description
        };
        for (var i = 0; i < mb.options.tiles.length; i++) {
            tilejson.tiles.push(mb.options.tiles[i]
                .replace('.png', lowpng)
                .replace('.jpg', lowjpg));
        }
        m.mapTypes.set('mb-low', new wax.g.connector(tilejson));
    }

    return wax.bwdetect(options, function(bw) {
      map.setMapTypeId(bw ? 'mb' : 'mb-low');
    });
};
wax = wax || {};
wax.g = wax.g || {};

wax.g.hash = function(map) {
    return wax.hash({
        getCenterZoom: function() {
            var center = map.getCenter(),
                zoom = map.getZoom(),
                precision = Math.max(
                    0,
                    Math.ceil(Math.log(zoom) / Math.LN2));
            return [zoom.toFixed(2),
                center.lat().toFixed(precision),
                center.lng().toFixed(precision)
            ].join('/');
        },
        setCenterZoom: function setCenterZoom(args) {
            map.setCenter(new google.maps.LatLng(args[1], args[2]));
            map.setZoom(args[0]);
        },
        bindChange: function(fn) {
            google.maps.event.addListener(map, 'idle', fn);
        },
        unbindChange: function(fn) {
            google.maps.event.removeListener(map, 'idle', fn);
        }
    });
};
wax = wax || {};
wax.g = wax.g || {};

wax.g.interaction = function() {
    var dirty = false, _grid, map, interactionEnabled = false;
    var tileloadListener = null,
        idleListener = null;

    function setdirty() { dirty = true; }

    function grid() {

        // when interaction is enabled there should be grid tiles
        if (!dirty && _grid && (_grid.length > 0 || !interactionEnabled)) {
            return _grid;
        } else {
            _grid = [];
            var zoom = map.getZoom();
            var mapOffset = wax.u.offset(map.getDiv());
            var get = function(mapType) {
                if (!mapType || !mapType.interactive) return;
                interactionEnabled = true;
                for (var key in mapType.cache) {
                    if (key.split('/')[0] != zoom) continue;
                    var tileOffset = wax.u.offset(mapType.cache[key]);
                    _grid.push([
                        tileOffset.top,
                        tileOffset.left,
                        mapType.cache[key]
                    ]);
                }
            };
            // Iterate over base mapTypes and overlayMapTypes.
            for (var i in map.mapTypes) get(map.mapTypes[i]);
            map.overlayMapTypes.forEach(get);
        }
        return _grid;
    }

    function attach(x) {
        if (!arguments.length) return map;
        map = x;
        tileloadListener = google.maps.event.addListener(map, 'tileloaded',
            setdirty);
        idleListener = google.maps.event.addListener(map, 'idle',
            setdirty);
    }

    function detach(x) {
        if(tileloadListener)
          google.maps.event.removeListener(tileloadListener);
        if(idleListener)
          google.maps.event.removeListener(idleListener);
    }



    return wax.interaction()
        .attach(attach)
        .detach(detach)
        .discardTouchMove(true)
        .parent(function() {
          return map.getDiv();
        })
        .grid(grid);
};
// Wax for Google Maps API v3
// --------------------------

// Wax header
var wax = wax || {};
wax.g = wax.g || {};

// Wax Google Maps MapType: takes an object of options in the form
//
//     {
//       name: '',
//       filetype: '.png',
//       layerName: 'world-light',
//       alt: '',
//       zoomRange: [0, 18],
//       baseUrl: 'a url',
//     }
wax.g.connector = function(options) {
    options = options || {};

    this.options = {
        tiles: options.tiles,
        scheme: options.scheme || 'xyz',
        blankImage: options.blankImage || 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs='
    };

    this.opacity = options.opacity || 0;
    this.minZoom = options.minzoom || 0;
    this.maxZoom = options.maxzoom || 22;

    this.name = options.name || '';
    this.description = options.description || '';

    // non-configurable options
    this.interactive = true;
    this.tileSize = new google.maps.Size(256, 256);

    // DOM element cache
    this.cache = {};
};

// Get a tile element from a coordinate, zoom level, and an ownerDocument.
wax.g.connector.prototype.getTile = function(coord, zoom, ownerDocument) {
    var key = zoom + '/' + coord.x + '/' + coord.y;
    if (!this.cache[key]) {
      var img = this.cache[key] = new Image(256, 256);
      this.cache[key].src = this.getTileUrl(coord, zoom);
      this.cache[key].setAttribute('gTileKey', key);
      this.cache[key].setAttribute("style","opacity: "+this.opacity+"; filter: alpha(opacity="+(this.opacity*100)+");");
      this.cache[key].onerror = function() { img.style.display = 'none'; };
    }
    return this.cache[key];
};

// Remove a tile that has fallen out of the map's viewport.
//
// TODO: expire cache data in the gridmanager.
wax.g.connector.prototype.releaseTile = function(tile) {
  // var key = tile.getAttribute('gTileKey');
  // if (this.cache[key]) delete this.cache[key];
  // if (tile.parentNode) tile.parentNode.removeChild(tile);
};

// Get a tile url, based on x, y coordinates and a z value.
wax.g.connector.prototype.getTileUrl = function(coord, z) {
    // Y coordinate is flipped in Mapbox, compared to Google
    var mod = Math.pow(2, z),
        y = (this.options.scheme === 'tms') ?
            (mod - 1) - coord.y :
            coord.y,
        x = (coord.x % mod);

    x = (x < 0) ? (coord.x % mod) + mod : x;

    if (y < 0) return this.options.blankImage;

    return this.options.tiles
        [parseInt(x + y, 10) %
            this.options.tiles.length]
                .replace(/\{z\}/g, z)
                .replace(/\{x\}/g, x)
                .replace(/\{y\}/g, y);
};