/**
* @preserve HTML5 Shiv prev3.7.1 | @afarkas @jdalton @jon_neal @rem | MIT/GPL2 Licensed
*/
;(function(window, document) {
/*jshint evil:true */
  /** version */
  var version = '3.7.0';

  /** Preset options */
  var options = window.html5 || {};

  /** Used to skip problem elements */
  var reSkip = /^<|^(?:button|map|select|textarea|object|iframe|option|optgroup)$/i;

  /** Not all elements can be cloned in IE **/
  var saveClones = /^(?:a|b|code|div|fieldset|h1|h2|h3|h4|h5|h6|i|label|li|ol|p|q|span|strong|style|table|tbody|td|th|tr|ul)$/i;

  /** Detect whether the browser supports default html5 styles */
  var supportsHtml5Styles;

  /** Name of the expando, to work with multiple documents or to re-shiv one document */
  var expando = '_html5shiv';

  /** The id for the the documents expando */
  var expanID = 0;

  /** Cached data for each document */
  var expandoData = {};

  /** Detect whether the browser supports unknown elements */
  var supportsUnknownElements;

  (function() {
  try {
  var a = document.createElement('a');
  a.innerHTML = '<xyz></xyz>';
  //if the hidden property is implemented we can assume, that the browser supports basic HTML5 Styles
  supportsHtml5Styles = ('hidden' in a);

  supportsUnknownElements = a.childNodes.length == 1 || (function() {
  // assign a false positive if unable to shiv
  (document.createElement)('a');
  var frag = document.createDocumentFragment();
  return (
  typeof frag.cloneNode == 'undefined' ||
  typeof frag.createDocumentFragment == 'undefined' ||
  typeof frag.createElement == 'undefined'
  );
  }());
  } catch(e) {
  // assign a false positive if detection fails => unable to shiv
  supportsHtml5Styles = true;
  supportsUnknownElements = true;
  }

  }());

  /*--------------------------------------------------------------------------*/

  /**
  * Creates a style sheet with the given CSS text and adds it to the document.
  * @private
  * @param {Document} ownerDocument The document.
  * @param {String} cssText The CSS text.
  * @returns {StyleSheet} The style element.
  */
  function addStyleSheet(ownerDocument, cssText) {
  var p = ownerDocument.createElement('p'),
  parent = ownerDocument.getElementsByTagName('head')[0] || ownerDocument.documentElement;

  p.innerHTML = 'x<style>' + cssText + '</style>';
  return parent.insertBefore(p.lastChild, parent.firstChild);
  }

  /**
  * Returns the value of `html5.elements` as an array.
  * @private
  * @returns {Array} An array of shived element node names.
  */
  function getElements() {
  var elements = html5.elements;
  return typeof elements == 'string' ? elements.split(' ') : elements;
  }

  /**
  * Returns the data associated to the given document
  * @private
  * @param {Document} ownerDocument The document.
  * @returns {Object} An object of data.
  */
  function getExpandoData(ownerDocument) {
  var data = expandoData[ownerDocument[expando]];
  if (!data) {
  data = {};
  expanID++;
  ownerDocument[expando] = expanID;
  expandoData[expanID] = data;
  }
  return data;
  }

  /**
  * returns a shived element for the given nodeName and document
  * @memberOf html5
  * @param {String} nodeName name of the element
  * @param {Document} ownerDocument The context document.
  * @returns {Object} The shived element.
  */
  function createElement(nodeName, ownerDocument, data){
  if (!ownerDocument) {
  ownerDocument = document;
  }
  if(supportsUnknownElements){
  return ownerDocument.createElement(nodeName);
  }
  if (!data) {
  data = getExpandoData(ownerDocument);
  }
  var node;

  if (data.cache[nodeName]) {
  node = data.cache[nodeName].cloneNode();
  } else if (saveClones.test(nodeName)) {
  node = (data.cache[nodeName] = data.createElem(nodeName)).cloneNode();
  } else {
  node = data.createElem(nodeName);
  }

  // Avoid adding some elements to fragments in IE < 9 because
  // * Attributes like `name` or `type` cannot be set/changed once an element
  // is inserted into a document/fragment
  // * Link elements with `src` attributes that are inaccessible, as with
  // a 403 response, will cause the tab/window to crash
  // * Script elements appended to fragments will execute when their `src`
  // or `text` property is set
  return node.canHaveChildren && !reSkip.test(nodeName) && !node.tagUrn ? data.frag.appendChild(node) : node;
  }

  /**
  * returns a shived DocumentFragment for the given document
  * @memberOf html5
  * @param {Document} ownerDocument The context document.
  * @returns {Object} The shived DocumentFragment.
  */
  function createDocumentFragment(ownerDocument, data){
  if (!ownerDocument) {
  ownerDocument = document;
  }
  if(supportsUnknownElements){
  return ownerDocument.createDocumentFragment();
  }
  data = data || getExpandoData(ownerDocument);
  var clone = data.frag.cloneNode(),
  i = 0,
  elems = getElements(),
  l = elems.length;
  for(;i<l;i++){
  clone.createElement(elems[i]);
  }
  return clone;
  }

  /**
  * Shivs the `createElement` and `createDocumentFragment` methods of the document.
  * @private
  * @param {Document|DocumentFragment} ownerDocument The document.
  * @param {Object} data of the document.
  */
  function shivMethods(ownerDocument, data) {
  if (!data.cache) {
  data.cache = {};
  data.createElem = ownerDocument.createElement;
  data.createFrag = ownerDocument.createDocumentFragment;
  data.frag = data.createFrag();
  }

  ownerDocument.createElement = function(nodeName) {
  //abort shiv
  if (!html5.shivMethods) {
  return data.createElem(nodeName);
  }
  return createElement(nodeName, ownerDocument, data);
  };

  ownerDocument.createDocumentFragment = Function('h,f', 'return function(){' +
  'var n=f.cloneNode(),c=n.createElement;' +
  'h.shivMethods&&(' +
  // unroll the `createElement` calls
  getElements().join().replace(/[\w\-:]+/g, function(nodeName) {
  data.createElem(nodeName);
  data.frag.createElement(nodeName);
  return 'c("' + nodeName + '")';
  }) +
  ');return n}'
  )(html5, data.frag);
  }

  /*--------------------------------------------------------------------------*/

  /**
  * Shivs the given document.
  * @memberOf html5
  * @param {Document} ownerDocument The document to shiv.
  * @returns {Document} The shived document.
  */
  function shivDocument(ownerDocument) {
  if (!ownerDocument) {
  ownerDocument = document;
  }
  var data = getExpandoData(ownerDocument);

  if (html5.shivCSS && !supportsHtml5Styles && !data.hasCSS) {
  data.hasCSS = !!addStyleSheet(ownerDocument,
  // corrects block display not defined in IE6/7/8/9
  'article,aside,dialog,figcaption,figure,footer,header,hgroup,main,nav,section{display:block}' +
  // adds styling not present in IE6/7/8/9
  'mark{background:#FF0;color:#000}' +
  // hides non-rendered elements
  'template{display:none}'
  );
  }
  if (!supportsUnknownElements) {
  shivMethods(ownerDocument, data);
  }
  return ownerDocument;
  }

  /*--------------------------------------------------------------------------*/

  /**
  * The `html5` object is exposed so that more elements can be shived and
  * existing shiving can be detected on iframes.
  * @type Object
  * @example
  *
  * // options can be changed before the script is included
  * html5 = { 'elements': 'mark section', 'shivCSS': false, 'shivMethods': false };
  */
  var html5 = {

  /**
  * An array or space separated string of node names of the elements to shiv.
  * @memberOf html5
  * @type Array|String
  */
  'elements': options.elements || 'abbr article aside audio bdi canvas data datalist details dialog figcaption figure footer header hgroup main mark meter nav output progress section summary template time video',

  /**
  * current version of html5shiv
  */
  'version': version,

  /**
  * A flag to indicate that the HTML5 style sheet should be inserted.
  * @memberOf html5
  * @type Boolean
  */
  'shivCSS': (options.shivCSS !== false),

  /**
  * Is equal to true if a browser supports creating unknown/HTML5 elements
  * @memberOf html5
  * @type boolean
  */
  'supportsUnknownElements': supportsUnknownElements,

  /**
  * A flag to indicate that the document's `createElement` and `createDocumentFragment`
  * methods should be overwritten.
  * @memberOf html5
  * @type Boolean
  */
  'shivMethods': (options.shivMethods !== false),

  /**
  * A string to describe the type of `html5` object ("default" or "default print").
  * @memberOf html5
  * @type String
  */
  'type': 'default',

  // shivs the document according to the specified `html5` object options
  'shivDocument': shivDocument,

  //creates a shived element
  createElement: createElement,

  //creates a shived documentFragment
  createDocumentFragment: createDocumentFragment
  };

  /*--------------------------------------------------------------------------*/

  // expose html5
  window.html5 = html5;

  // shiv the document
  shivDocument(document);

}(this, document));