/**

* @license
* Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
* This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
* The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
* The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
* Code distributed by Google as part of the polymer project is also
* subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
*/

// @version 0.7.23 if (typeof WeakMap === “undefined”) {

(function() {
  var defineProperty = Object.defineProperty;
  var counter = Date.now() % 1e9;
  var WeakMap = function() {
    this.name = "__st" + (Math.random() * 1e9 >>> 0) + (counter++ + "__");
  };
  WeakMap.prototype = {
    set: function(key, value) {
      var entry = key[this.name];
      if (entry && entry[0] === key) entry[1] = value; else defineProperty(key, this.name, {
        value: [ key, value ],
        writable: true
      });
      return this;
    },
    get: function(key) {
      var entry;
      return (entry = key[this.name]) && entry[0] === key ? entry[1] : undefined;
    },
    "delete": function(key) {
      var entry = key[this.name];
      if (!entry || entry[0] !== key) return false;
      entry[0] = entry[1] = undefined;
      return true;
    },
    has: function(key) {
      var entry = key[this.name];
      if (!entry) return false;
      return entry[0] === key;
    }
  };
  window.WeakMap = WeakMap;
})();

}

(function(global) {

if (global.JsMutationObserver) {
  return;
}
var registrationsTable = new WeakMap();
var setImmediate;
if (/Trident|Edge/.test(navigator.userAgent)) {
  setImmediate = setTimeout;
} else if (window.setImmediate) {
  setImmediate = window.setImmediate;
} else {
  var setImmediateQueue = [];
  var sentinel = String(Math.random());
  window.addEventListener("message", function(e) {
    if (e.data === sentinel) {
      var queue = setImmediateQueue;
      setImmediateQueue = [];
      queue.forEach(function(func) {
        func();
      });
    }
  });
  setImmediate = function(func) {
    setImmediateQueue.push(func);
    window.postMessage(sentinel, "*");
  };
}
var isScheduled = false;
var scheduledObservers = [];
function scheduleCallback(observer) {
  scheduledObservers.push(observer);
  if (!isScheduled) {
    isScheduled = true;
    setImmediate(dispatchCallbacks);
  }
}
function wrapIfNeeded(node) {
  return window.ShadowDOMPolyfill && window.ShadowDOMPolyfill.wrapIfNeeded(node) || node;
}
function dispatchCallbacks() {
  isScheduled = false;
  var observers = scheduledObservers;
  scheduledObservers = [];
  observers.sort(function(o1, o2) {
    return o1.uid_ - o2.uid_;
  });
  var anyNonEmpty = false;
  observers.forEach(function(observer) {
    var queue = observer.takeRecords();
    removeTransientObserversFor(observer);
    if (queue.length) {
      observer.callback_(queue, observer);
      anyNonEmpty = true;
    }
  });
  if (anyNonEmpty) dispatchCallbacks();
}
function removeTransientObserversFor(observer) {
  observer.nodes_.forEach(function(node) {
    var registrations = registrationsTable.get(node);
    if (!registrations) return;
    registrations.forEach(function(registration) {
      if (registration.observer === observer) registration.removeTransientObservers();
    });
  });
}
function forEachAncestorAndObserverEnqueueRecord(target, callback) {
  for (var node = target; node; node = node.parentNode) {
    var registrations = registrationsTable.get(node);
    if (registrations) {
      for (var j = 0; j < registrations.length; j++) {
        var registration = registrations[j];
        var options = registration.options;
        if (node !== target && !options.subtree) continue;
        var record = callback(options);
        if (record) registration.enqueue(record);
      }
    }
  }
}
var uidCounter = 0;
function JsMutationObserver(callback) {
  this.callback_ = callback;
  this.nodes_ = [];
  this.records_ = [];
  this.uid_ = ++uidCounter;
}
JsMutationObserver.prototype = {
  observe: function(target, options) {
    target = wrapIfNeeded(target);
    if (!options.childList && !options.attributes && !options.characterData || options.attributeOldValue && !options.attributes || options.attributeFilter && options.attributeFilter.length && !options.attributes || options.characterDataOldValue && !options.characterData) {
      throw new SyntaxError();
    }
    var registrations = registrationsTable.get(target);
    if (!registrations) registrationsTable.set(target, registrations = []);
    var registration;
    for (var i = 0; i < registrations.length; i++) {
      if (registrations[i].observer === this) {
        registration = registrations[i];
        registration.removeListeners();
        registration.options = options;
        break;
      }
    }
    if (!registration) {
      registration = new Registration(this, target, options);
      registrations.push(registration);
      this.nodes_.push(target);
    }
    registration.addListeners();
  },
  disconnect: function() {
    this.nodes_.forEach(function(node) {
      var registrations = registrationsTable.get(node);
      for (var i = 0; i < registrations.length; i++) {
        var registration = registrations[i];
        if (registration.observer === this) {
          registration.removeListeners();
          registrations.splice(i, 1);
          break;
        }
      }
    }, this);
    this.records_ = [];
  },
  takeRecords: function() {
    var copyOfRecords = this.records_;
    this.records_ = [];
    return copyOfRecords;
  }
};
function MutationRecord(type, target) {
  this.type = type;
  this.target = target;
  this.addedNodes = [];
  this.removedNodes = [];
  this.previousSibling = null;
  this.nextSibling = null;
  this.attributeName = null;
  this.attributeNamespace = null;
  this.oldValue = null;
}
function copyMutationRecord(original) {
  var record = new MutationRecord(original.type, original.target);
  record.addedNodes = original.addedNodes.slice();
  record.removedNodes = original.removedNodes.slice();
  record.previousSibling = original.previousSibling;
  record.nextSibling = original.nextSibling;
  record.attributeName = original.attributeName;
  record.attributeNamespace = original.attributeNamespace;
  record.oldValue = original.oldValue;
  return record;
}
var currentRecord, recordWithOldValue;
function getRecord(type, target) {
  return currentRecord = new MutationRecord(type, target);
}
function getRecordWithOldValue(oldValue) {
  if (recordWithOldValue) return recordWithOldValue;
  recordWithOldValue = copyMutationRecord(currentRecord);
  recordWithOldValue.oldValue = oldValue;
  return recordWithOldValue;
}
function clearRecords() {
  currentRecord = recordWithOldValue = undefined;
}
function recordRepresentsCurrentMutation(record) {
  return record === recordWithOldValue || record === currentRecord;
}
function selectRecord(lastRecord, newRecord) {
  if (lastRecord === newRecord) return lastRecord;
  if (recordWithOldValue && recordRepresentsCurrentMutation(lastRecord)) return recordWithOldValue;
  return null;
}
function Registration(observer, target, options) {
  this.observer = observer;
  this.target = target;
  this.options = options;
  this.transientObservedNodes = [];
}
Registration.prototype = {
  enqueue: function(record) {
    var records = this.observer.records_;
    var length = records.length;
    if (records.length > 0) {
      var lastRecord = records[length - 1];
      var recordToReplaceLast = selectRecord(lastRecord, record);
      if (recordToReplaceLast) {
        records[length - 1] = recordToReplaceLast;
        return;
      }
    } else {
      scheduleCallback(this.observer);
    }
    records[length] = record;
  },
  addListeners: function() {
    this.addListeners_(this.target);
  },
  addListeners_: function(node) {
    var options = this.options;
    if (options.attributes) node.addEventListener("DOMAttrModified", this, true);
    if (options.characterData) node.addEventListener("DOMCharacterDataModified", this, true);
    if (options.childList) node.addEventListener("DOMNodeInserted", this, true);
    if (options.childList || options.subtree) node.addEventListener("DOMNodeRemoved", this, true);
  },
  removeListeners: function() {
    this.removeListeners_(this.target);
  },
  removeListeners_: function(node) {
    var options = this.options;
    if (options.attributes) node.removeEventListener("DOMAttrModified", this, true);
    if (options.characterData) node.removeEventListener("DOMCharacterDataModified", this, true);
    if (options.childList) node.removeEventListener("DOMNodeInserted", this, true);
    if (options.childList || options.subtree) node.removeEventListener("DOMNodeRemoved", this, true);
  },
  addTransientObserver: function(node) {
    if (node === this.target) return;
    this.addListeners_(node);
    this.transientObservedNodes.push(node);
    var registrations = registrationsTable.get(node);
    if (!registrations) registrationsTable.set(node, registrations = []);
    registrations.push(this);
  },
  removeTransientObservers: function() {
    var transientObservedNodes = this.transientObservedNodes;
    this.transientObservedNodes = [];
    transientObservedNodes.forEach(function(node) {
      this.removeListeners_(node);
      var registrations = registrationsTable.get(node);
      for (var i = 0; i < registrations.length; i++) {
        if (registrations[i] === this) {
          registrations.splice(i, 1);
          break;
        }
      }
    }, this);
  },
  handleEvent: function(e) {
    e.stopImmediatePropagation();
    switch (e.type) {
     case "DOMAttrModified":
      var name = e.attrName;
      var namespace = e.relatedNode.namespaceURI;
      var target = e.target;
      var record = new getRecord("attributes", target);
      record.attributeName = name;
      record.attributeNamespace = namespace;
      var oldValue = e.attrChange === MutationEvent.ADDITION ? null : e.prevValue;
      forEachAncestorAndObserverEnqueueRecord(target, function(options) {
        if (!options.attributes) return;
        if (options.attributeFilter && options.attributeFilter.length && options.attributeFilter.indexOf(name) === -1 && options.attributeFilter.indexOf(namespace) === -1) {
          return;
        }
        if (options.attributeOldValue) return getRecordWithOldValue(oldValue);
        return record;
      });
      break;

     case "DOMCharacterDataModified":
      var target = e.target;
      var record = getRecord("characterData", target);
      var oldValue = e.prevValue;
      forEachAncestorAndObserverEnqueueRecord(target, function(options) {
        if (!options.characterData) return;
        if (options.characterDataOldValue) return getRecordWithOldValue(oldValue);
        return record;
      });
      break;

     case "DOMNodeRemoved":
      this.addTransientObserver(e.target);

     case "DOMNodeInserted":
      var changedNode = e.target;
      var addedNodes, removedNodes;
      if (e.type === "DOMNodeInserted") {
        addedNodes = [ changedNode ];
        removedNodes = [];
      } else {
        addedNodes = [];
        removedNodes = [ changedNode ];
      }
      var previousSibling = changedNode.previousSibling;
      var nextSibling = changedNode.nextSibling;
      var record = getRecord("childList", e.target.parentNode);
      record.addedNodes = addedNodes;
      record.removedNodes = removedNodes;
      record.previousSibling = previousSibling;
      record.nextSibling = nextSibling;
      forEachAncestorAndObserverEnqueueRecord(e.relatedNode, function(options) {
        if (!options.childList) return;
        return record;
      });
    }
    clearRecords();
  }
};
global.JsMutationObserver = JsMutationObserver;
if (!global.MutationObserver) {
  global.MutationObserver = JsMutationObserver;
  JsMutationObserver._isPolyfilled = true;
}

})(self);

(function(scope) {

"use strict";
if (!(window.performance && window.performance.now)) {
  var start = Date.now();
  window.performance = {
    now: function() {
      return Date.now() - start;
    }
  };
}
if (!window.requestAnimationFrame) {
  window.requestAnimationFrame = function() {
    var nativeRaf = window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame;
    return nativeRaf ? function(callback) {
      return nativeRaf(function() {
        callback(performance.now());
      });
    } : function(callback) {
      return window.setTimeout(callback, 1e3 / 60);
    };
  }();
}
if (!window.cancelAnimationFrame) {
  window.cancelAnimationFrame = function() {
    return window.webkitCancelAnimationFrame || window.mozCancelAnimationFrame || function(id) {
      clearTimeout(id);
    };
  }();
}
var workingDefaultPrevented = function() {
  var e = document.createEvent("Event");
  e.initEvent("foo", true, true);
  e.preventDefault();
  return e.defaultPrevented;
}();
if (!workingDefaultPrevented) {
  var origPreventDefault = Event.prototype.preventDefault;
  Event.prototype.preventDefault = function() {
    if (!this.cancelable) {
      return;
    }
    origPreventDefault.call(this);
    Object.defineProperty(this, "defaultPrevented", {
      get: function() {
        return true;
      },
      configurable: true
    });
  };
}
var isIE = /Trident/.test(navigator.userAgent);
if (!window.CustomEvent || isIE && typeof window.CustomEvent !== "function") {
  window.CustomEvent = function(inType, params) {
    params = params || {};
    var e = document.createEvent("CustomEvent");
    e.initCustomEvent(inType, Boolean(params.bubbles), Boolean(params.cancelable), params.detail);
    return e;
  };
  window.CustomEvent.prototype = window.Event.prototype;
}
if (!window.Event || isIE && typeof window.Event !== "function") {
  var origEvent = window.Event;
  window.Event = function(inType, params) {
    params = params || {};
    var e = document.createEvent("Event");
    e.initEvent(inType, Boolean(params.bubbles), Boolean(params.cancelable));
    return e;
  };
  window.Event.prototype = origEvent.prototype;
}

})(window.WebComponents);

window.HTMLImports = window.HTMLImports || {

flags: {}

};

(function(scope) {

var IMPORT_LINK_TYPE = "import";
var useNative = Boolean(IMPORT_LINK_TYPE in document.createElement("link"));
var hasShadowDOMPolyfill = Boolean(window.ShadowDOMPolyfill);
var wrap = function(node) {
  return hasShadowDOMPolyfill ? window.ShadowDOMPolyfill.wrapIfNeeded(node) : node;
};
var rootDocument = wrap(document);
var currentScriptDescriptor = {
  get: function() {
    var script = window.HTMLImports.currentScript || document.currentScript || (document.readyState !== "complete" ? document.scripts[document.scripts.length - 1] : null);
    return wrap(script);
  },
  configurable: true
};
Object.defineProperty(document, "_currentScript", currentScriptDescriptor);
Object.defineProperty(rootDocument, "_currentScript", currentScriptDescriptor);
var isIE = /Trident/.test(navigator.userAgent);
function whenReady(callback, doc) {
  doc = doc || rootDocument;
  whenDocumentReady(function() {
    watchImportsLoad(callback, doc);
  }, doc);
}
var requiredReadyState = isIE ? "complete" : "interactive";
var READY_EVENT = "readystatechange";
function isDocumentReady(doc) {
  return doc.readyState === "complete" || doc.readyState === requiredReadyState;
}
function whenDocumentReady(callback, doc) {
  if (!isDocumentReady(doc)) {
    var checkReady = function() {
      if (doc.readyState === "complete" || doc.readyState === requiredReadyState) {
        doc.removeEventListener(READY_EVENT, checkReady);
        whenDocumentReady(callback, doc);
      }
    };
    doc.addEventListener(READY_EVENT, checkReady);
  } else if (callback) {
    callback();
  }
}
function markTargetLoaded(event) {
  event.target.__loaded = true;
}
function watchImportsLoad(callback, doc) {
  var imports = doc.querySelectorAll("link[rel=import]");
  var parsedCount = 0, importCount = imports.length, newImports = [], errorImports = [];
  function checkDone() {
    if (parsedCount == importCount && callback) {
      callback({
        allImports: imports,
        loadedImports: newImports,
        errorImports: errorImports
      });
    }
  }
  function loadedImport(e) {
    markTargetLoaded(e);
    newImports.push(this);
    parsedCount++;
    checkDone();
  }
  function errorLoadingImport(e) {
    errorImports.push(this);
    parsedCount++;
    checkDone();
  }
  if (importCount) {
    for (var i = 0, imp; i < importCount && (imp = imports[i]); i++) {
      if (isImportLoaded(imp)) {
        newImports.push(this);
        parsedCount++;
        checkDone();
      } else {
        imp.addEventListener("load", loadedImport);
        imp.addEventListener("error", errorLoadingImport);
      }
    }
  } else {
    checkDone();
  }
}
function isImportLoaded(link) {
  return useNative ? link.__loaded || link.import && link.import.readyState !== "loading" : link.__importParsed;
}
if (useNative) {
  new MutationObserver(function(mxns) {
    for (var i = 0, l = mxns.length, m; i < l && (m = mxns[i]); i++) {
      if (m.addedNodes) {
        handleImports(m.addedNodes);
      }
    }
  }).observe(document.head, {
    childList: true
  });
  function handleImports(nodes) {
    for (var i = 0, l = nodes.length, n; i < l && (n = nodes[i]); i++) {
      if (isImport(n)) {
        handleImport(n);
      }
    }
  }
  function isImport(element) {
    return element.localName === "link" && element.rel === "import";
  }
  function handleImport(element) {
    var loaded = element.import;
    if (loaded) {
      markTargetLoaded({
        target: element
      });
    } else {
      element.addEventListener("load", markTargetLoaded);
      element.addEventListener("error", markTargetLoaded);
    }
  }
  (function() {
    if (document.readyState === "loading") {
      var imports = document.querySelectorAll("link[rel=import]");
      for (var i = 0, l = imports.length, imp; i < l && (imp = imports[i]); i++) {
        handleImport(imp);
      }
    }
  })();
}
whenReady(function(detail) {
  window.HTMLImports.ready = true;
  window.HTMLImports.readyTime = new Date().getTime();
  var evt = rootDocument.createEvent("CustomEvent");
  evt.initCustomEvent("HTMLImportsLoaded", true, true, detail);
  rootDocument.dispatchEvent(evt);
});
scope.IMPORT_LINK_TYPE = IMPORT_LINK_TYPE;
scope.useNative = useNative;
scope.rootDocument = rootDocument;
scope.whenReady = whenReady;
scope.isIE = isIE;

})(window.HTMLImports);

(function(scope) {

var modules = [];
var addModule = function(module) {
  modules.push(module);
};
var initializeModules = function() {
  modules.forEach(function(module) {
    module(scope);
  });
};
scope.addModule = addModule;
scope.initializeModules = initializeModules;

})(window.HTMLImports);

window.HTMLImports.addModule(function(scope) {

var CSS_URL_REGEXP = /(url\()([^)]*)(\))/g;
var CSS_IMPORT_REGEXP = /(@import[\s]+(?!url\())([^;]*)(;)/g;
var path = {
  resolveUrlsInStyle: function(style, linkUrl) {
    var doc = style.ownerDocument;
    var resolver = doc.createElement("a");
    style.textContent = this.resolveUrlsInCssText(style.textContent, linkUrl, resolver);
    return style;
  },
  resolveUrlsInCssText: function(cssText, linkUrl, urlObj) {
    var r = this.replaceUrls(cssText, urlObj, linkUrl, CSS_URL_REGEXP);
    r = this.replaceUrls(r, urlObj, linkUrl, CSS_IMPORT_REGEXP);
    return r;
  },
  replaceUrls: function(text, urlObj, linkUrl, regexp) {
    return text.replace(regexp, function(m, pre, url, post) {
      var urlPath = url.replace(/["']/g, "");
      if (linkUrl) {
        urlPath = new URL(urlPath, linkUrl).href;
      }
      urlObj.href = urlPath;
      urlPath = urlObj.href;
      return pre + "'" + urlPath + "'" + post;
    });
  }
};
scope.path = path;

});

window.HTMLImports.addModule(function(scope) {

var xhr = {
  async: true,
  ok: function(request) {
    return request.status >= 200 && request.status < 300 || request.status === 304 || request.status === 0;
  },
  load: function(url, next, nextContext) {
    var request = new XMLHttpRequest();
    if (scope.flags.debug || scope.flags.bust) {
      url += "?" + Math.random();
    }
    request.open("GET", url, xhr.async);
    request.addEventListener("readystatechange", function(e) {
      if (request.readyState === 4) {
        var redirectedUrl = null;
        try {
          var locationHeader = request.getResponseHeader("Location");
          if (locationHeader) {
            redirectedUrl = locationHeader.substr(0, 1) === "/" ? location.origin + locationHeader : locationHeader;
          }
        } catch (e) {
          console.error(e.message);
        }
        next.call(nextContext, !xhr.ok(request) && request, request.response || request.responseText, redirectedUrl);
      }
    });
    request.send();
    return request;
  },
  loadDocument: function(url, next, nextContext) {
    this.load(url, next, nextContext).responseType = "document";
  }
};
scope.xhr = xhr;

});

window.HTMLImports.addModule(function(scope) {

var xhr = scope.xhr;
var flags = scope.flags;
var Loader = function(onLoad, onComplete) {
  this.cache = {};
  this.onload = onLoad;
  this.oncomplete = onComplete;
  this.inflight = 0;
  this.pending = {};
};
Loader.prototype = {
  addNodes: function(nodes) {
    this.inflight += nodes.length;
    for (var i = 0, l = nodes.length, n; i < l && (n = nodes[i]); i++) {
      this.require(n);
    }
    this.checkDone();
  },
  addNode: function(node) {
    this.inflight++;
    this.require(node);
    this.checkDone();
  },
  require: function(elt) {
    var url = elt.src || elt.href;
    elt.__nodeUrl = url;
    if (!this.dedupe(url, elt)) {
      this.fetch(url, elt);
    }
  },
  dedupe: function(url, elt) {
    if (this.pending[url]) {
      this.pending[url].push(elt);
      return true;
    }
    var resource;
    if (this.cache[url]) {
      this.onload(url, elt, this.cache[url]);
      this.tail();
      return true;
    }
    this.pending[url] = [ elt ];
    return false;
  },
  fetch: function(url, elt) {
    flags.load && console.log("fetch", url, elt);
    if (!url) {
      setTimeout(function() {
        this.receive(url, elt, {
          error: "href must be specified"
        }, null);
      }.bind(this), 0);
    } else if (url.match(/^data:/)) {
      var pieces = url.split(",");
      var header = pieces[0];
      var body = pieces[1];
      if (header.indexOf(";base64") > -1) {
        body = atob(body);
      } else {
        body = decodeURIComponent(body);
      }
      setTimeout(function() {
        this.receive(url, elt, null, body);
      }.bind(this), 0);
    } else {
      var receiveXhr = function(err, resource, redirectedUrl) {
        this.receive(url, elt, err, resource, redirectedUrl);
      }.bind(this);
      xhr.load(url, receiveXhr);
    }
  },
  receive: function(url, elt, err, resource, redirectedUrl) {
    this.cache[url] = resource;
    var $p = this.pending[url];
    for (var i = 0, l = $p.length, p; i < l && (p = $p[i]); i++) {
      this.onload(url, p, resource, err, redirectedUrl);
      this.tail();
    }
    this.pending[url] = null;
  },
  tail: function() {
    --this.inflight;
    this.checkDone();
  },
  checkDone: function() {
    if (!this.inflight) {
      this.oncomplete();
    }
  }
};
scope.Loader = Loader;

});

window.HTMLImports.addModule(function(scope) {

var Observer = function(addCallback) {
  this.addCallback = addCallback;
  this.mo = new MutationObserver(this.handler.bind(this));
};
Observer.prototype = {
  handler: function(mutations) {
    for (var i = 0, l = mutations.length, m; i < l && (m = mutations[i]); i++) {
      if (m.type === "childList" && m.addedNodes.length) {
        this.addedNodes(m.addedNodes);
      }
    }
  },
  addedNodes: function(nodes) {
    if (this.addCallback) {
      this.addCallback(nodes);
    }
    for (var i = 0, l = nodes.length, n, loading; i < l && (n = nodes[i]); i++) {
      if (n.children && n.children.length) {
        this.addedNodes(n.children);
      }
    }
  },
  observe: function(root) {
    this.mo.observe(root, {
      childList: true,
      subtree: true
    });
  }
};
scope.Observer = Observer;

});

window.HTMLImports.addModule(function(scope) {

var path = scope.path;
var rootDocument = scope.rootDocument;
var flags = scope.flags;
var isIE = scope.isIE;
var IMPORT_LINK_TYPE = scope.IMPORT_LINK_TYPE;
var IMPORT_SELECTOR = "link[rel=" + IMPORT_LINK_TYPE + "]";
var importParser = {
  documentSelectors: IMPORT_SELECTOR,
  importsSelectors: [ IMPORT_SELECTOR, "link[rel=stylesheet]:not([type])", "style:not([type])", "script:not([type])", 'script[type="application/javascript"]', 'script[type="text/javascript"]' ].join(","),
  map: {
    link: "parseLink",
    script: "parseScript",
    style: "parseStyle"
  },
  dynamicElements: [],
  parseNext: function() {
    var next = this.nextToParse();
    if (next) {
      this.parse(next);
    }
  },
  parse: function(elt) {
    if (this.isParsed(elt)) {
      flags.parse && console.log("[%s] is already parsed", elt.localName);
      return;
    }
    var fn = this[this.map[elt.localName]];
    if (fn) {
      this.markParsing(elt);
      fn.call(this, elt);
    }
  },
  parseDynamic: function(elt, quiet) {
    this.dynamicElements.push(elt);
    if (!quiet) {
      this.parseNext();
    }
  },
  markParsing: function(elt) {
    flags.parse && console.log("parsing", elt);
    this.parsingElement = elt;
  },
  markParsingComplete: function(elt) {
    elt.__importParsed = true;
    this.markDynamicParsingComplete(elt);
    if (elt.__importElement) {
      elt.__importElement.__importParsed = true;
      this.markDynamicParsingComplete(elt.__importElement);
    }
    this.parsingElement = null;
    flags.parse && console.log("completed", elt);
  },
  markDynamicParsingComplete: function(elt) {
    var i = this.dynamicElements.indexOf(elt);
    if (i >= 0) {
      this.dynamicElements.splice(i, 1);
    }
  },
  parseImport: function(elt) {
    elt.import = elt.__doc;
    if (window.HTMLImports.__importsParsingHook) {
      window.HTMLImports.__importsParsingHook(elt);
    }
    if (elt.import) {
      elt.import.__importParsed = true;
    }
    this.markParsingComplete(elt);
    if (elt.__resource && !elt.__error) {
      elt.dispatchEvent(new CustomEvent("load", {
        bubbles: false
      }));
    } else {
      elt.dispatchEvent(new CustomEvent("error", {
        bubbles: false
      }));
    }
    if (elt.__pending) {
      var fn;
      while (elt.__pending.length) {
        fn = elt.__pending.shift();
        if (fn) {
          fn({
            target: elt
          });
        }
      }
    }
    this.parseNext();
  },
  parseLink: function(linkElt) {
    if (nodeIsImport(linkElt)) {
      this.parseImport(linkElt);
    } else {
      linkElt.href = linkElt.href;
      this.parseGeneric(linkElt);
    }
  },
  parseStyle: function(elt) {
    var src = elt;
    elt = cloneStyle(elt);
    src.__appliedElement = elt;
    elt.__importElement = src;
    this.parseGeneric(elt);
  },
  parseGeneric: function(elt) {
    this.trackElement(elt);
    this.addElementToDocument(elt);
  },
  rootImportForElement: function(elt) {
    var n = elt;
    while (n.ownerDocument.__importLink) {
      n = n.ownerDocument.__importLink;
    }
    return n;
  },
  addElementToDocument: function(elt) {
    var port = this.rootImportForElement(elt.__importElement || elt);
    port.parentNode.insertBefore(elt, port);
  },
  trackElement: function(elt, callback) {
    var self = this;
    var done = function(e) {
      elt.removeEventListener("load", done);
      elt.removeEventListener("error", done);
      if (callback) {
        callback(e);
      }
      self.markParsingComplete(elt);
      self.parseNext();
    };
    elt.addEventListener("load", done);
    elt.addEventListener("error", done);
    if (isIE && elt.localName === "style") {
      var fakeLoad = false;
      if (elt.textContent.indexOf("@import") == -1) {
        fakeLoad = true;
      } else if (elt.sheet) {
        fakeLoad = true;
        var csr = elt.sheet.cssRules;
        var len = csr ? csr.length : 0;
        for (var i = 0, r; i < len && (r = csr[i]); i++) {
          if (r.type === CSSRule.IMPORT_RULE) {
            fakeLoad = fakeLoad && Boolean(r.styleSheet);
          }
        }
      }
      if (fakeLoad) {
        setTimeout(function() {
          elt.dispatchEvent(new CustomEvent("load", {
            bubbles: false
          }));
        });
      }
    }
  },
  parseScript: function(scriptElt) {
    var script = document.createElement("script");
    script.__importElement = scriptElt;
    script.src = scriptElt.src ? scriptElt.src : generateScriptDataUrl(scriptElt);
    scope.currentScript = scriptElt;
    this.trackElement(script, function(e) {
      if (script.parentNode) {
        script.parentNode.removeChild(script);
      }
      scope.currentScript = null;
    });
    this.addElementToDocument(script);
  },
  nextToParse: function() {
    this._mayParse = [];
    return !this.parsingElement && (this.nextToParseInDoc(rootDocument) || this.nextToParseDynamic());
  },
  nextToParseInDoc: function(doc, link) {
    if (doc && this._mayParse.indexOf(doc) < 0) {
      this._mayParse.push(doc);
      var nodes = doc.querySelectorAll(this.parseSelectorsForNode(doc));
      for (var i = 0, l = nodes.length, n; i < l && (n = nodes[i]); i++) {
        if (!this.isParsed(n)) {
          if (this.hasResource(n)) {
            return nodeIsImport(n) ? this.nextToParseInDoc(n.__doc, n) : n;
          } else {
            return;
          }
        }
      }
    }
    return link;
  },
  nextToParseDynamic: function() {
    return this.dynamicElements[0];
  },
  parseSelectorsForNode: function(node) {
    var doc = node.ownerDocument || node;
    return doc === rootDocument ? this.documentSelectors : this.importsSelectors;
  },
  isParsed: function(node) {
    return node.__importParsed;
  },
  needsDynamicParsing: function(elt) {
    return this.dynamicElements.indexOf(elt) >= 0;
  },
  hasResource: function(node) {
    if (nodeIsImport(node) && node.__doc === undefined) {
      return false;
    }
    return true;
  }
};
function nodeIsImport(elt) {
  return elt.localName === "link" && elt.rel === IMPORT_LINK_TYPE;
}
function generateScriptDataUrl(script) {
  var scriptContent = generateScriptContent(script);
  return "data:text/javascript;charset=utf-8," + encodeURIComponent(scriptContent);
}
function generateScriptContent(script) {
  return script.textContent + generateSourceMapHint(script);
}
function generateSourceMapHint(script) {
  var owner = script.ownerDocument;
  owner.__importedScripts = owner.__importedScripts || 0;
  var moniker = script.ownerDocument.baseURI;
  var num = owner.__importedScripts ? "-" + owner.__importedScripts : "";
  owner.__importedScripts++;
  return "\n//# sourceURL=" + moniker + num + ".js\n";
}
function cloneStyle(style) {
  var clone = style.ownerDocument.createElement("style");
  clone.textContent = style.textContent;
  path.resolveUrlsInStyle(clone);
  return clone;
}
scope.parser = importParser;
scope.IMPORT_SELECTOR = IMPORT_SELECTOR;

});

window.HTMLImports.addModule(function(scope) {

var flags = scope.flags;
var IMPORT_LINK_TYPE = scope.IMPORT_LINK_TYPE;
var IMPORT_SELECTOR = scope.IMPORT_SELECTOR;
var rootDocument = scope.rootDocument;
var Loader = scope.Loader;
var Observer = scope.Observer;
var parser = scope.parser;
var importer = {
  documents: {},
  documentPreloadSelectors: IMPORT_SELECTOR,
  importsPreloadSelectors: [ IMPORT_SELECTOR ].join(","),
  loadNode: function(node) {
    importLoader.addNode(node);
  },
  loadSubtree: function(parent) {
    var nodes = this.marshalNodes(parent);
    importLoader.addNodes(nodes);
  },
  marshalNodes: function(parent) {
    return parent.querySelectorAll(this.loadSelectorsForNode(parent));
  },
  loadSelectorsForNode: function(node) {
    var doc = node.ownerDocument || node;
    return doc === rootDocument ? this.documentPreloadSelectors : this.importsPreloadSelectors;
  },
  loaded: function(url, elt, resource, err, redirectedUrl) {
    flags.load && console.log("loaded", url, elt);
    elt.__resource = resource;
    elt.__error = err;
    if (isImportLink(elt)) {
      var doc = this.documents[url];
      if (doc === undefined) {
        doc = err ? null : makeDocument(resource, redirectedUrl || url);
        if (doc) {
          doc.__importLink = elt;
          this.bootDocument(doc);
        }
        this.documents[url] = doc;
      }
      elt.__doc = doc;
    }
    parser.parseNext();
  },
  bootDocument: function(doc) {
    this.loadSubtree(doc);
    this.observer.observe(doc);
    parser.parseNext();
  },
  loadedAll: function() {
    parser.parseNext();
  }
};
var importLoader = new Loader(importer.loaded.bind(importer), importer.loadedAll.bind(importer));
importer.observer = new Observer();
function isImportLink(elt) {
  return isLinkRel(elt, IMPORT_LINK_TYPE);
}
function isLinkRel(elt, rel) {
  return elt.localName === "link" && elt.getAttribute("rel") === rel;
}
function hasBaseURIAccessor(doc) {
  return !!Object.getOwnPropertyDescriptor(doc, "baseURI");
}
function makeDocument(resource, url) {
  var doc = document.implementation.createHTMLDocument(IMPORT_LINK_TYPE);
  doc._URL = url;
  var base = doc.createElement("base");
  base.setAttribute("href", url);
  if (!doc.baseURI && !hasBaseURIAccessor(doc)) {
    Object.defineProperty(doc, "baseURI", {
      value: url
    });
  }
  var meta = doc.createElement("meta");
  meta.setAttribute("charset", "utf-8");
  doc.head.appendChild(meta);
  doc.head.appendChild(base);
  doc.body.innerHTML = resource;
  if (window.HTMLTemplateElement && HTMLTemplateElement.bootstrap) {
    HTMLTemplateElement.bootstrap(doc);
  }
  return doc;
}
if (!document.baseURI) {
  var baseURIDescriptor = {
    get: function() {
      var base = document.querySelector("base");
      return base ? base.href : window.location.href;
    },
    configurable: true
  };
  Object.defineProperty(document, "baseURI", baseURIDescriptor);
  Object.defineProperty(rootDocument, "baseURI", baseURIDescriptor);
}
scope.importer = importer;
scope.importLoader = importLoader;

});

window.HTMLImports.addModule(function(scope) {

var parser = scope.parser;
var importer = scope.importer;
var dynamic = {
  added: function(nodes) {
    var owner, parsed, loading;
    for (var i = 0, l = nodes.length, n; i < l && (n = nodes[i]); i++) {
      if (!owner) {
        owner = n.ownerDocument;
        parsed = parser.isParsed(owner);
      }
      loading = this.shouldLoadNode(n);
      if (loading) {
        importer.loadNode(n);
      }
      if (this.shouldParseNode(n) && parsed) {
        parser.parseDynamic(n, loading);
      }
    }
  },
  shouldLoadNode: function(node) {
    return node.nodeType === 1 && matches.call(node, importer.loadSelectorsForNode(node));
  },
  shouldParseNode: function(node) {
    return node.nodeType === 1 && matches.call(node, parser.parseSelectorsForNode(node));
  }
};
importer.observer.addCallback = dynamic.added.bind(dynamic);
var matches = HTMLElement.prototype.matches || HTMLElement.prototype.matchesSelector || HTMLElement.prototype.webkitMatchesSelector || HTMLElement.prototype.mozMatchesSelector || HTMLElement.prototype.msMatchesSelector;

});

(function(scope) {

var initializeModules = scope.initializeModules;
var isIE = scope.isIE;
if (scope.useNative) {
  return;
}
initializeModules();
var rootDocument = scope.rootDocument;
function bootstrap() {
  window.HTMLImports.importer.bootDocument(rootDocument);
}
if (document.readyState === "complete" || document.readyState === "interactive" && !window.attachEvent) {
  bootstrap();
} else {
  document.addEventListener("DOMContentLoaded", bootstrap);
}

})(window.HTMLImports);