1/**
2* @preserve HTML5 Shiv 3.7.2 | @afarkas @jdalton @jon_neal @rem | MIT/GPL2 Licensed
3*/
4;(function(window, document) {
5/*jshint evil:true */
6  /** version */
7  var version = '3.7.2';
8
9  /** Preset options */
10  var options = window.html5 || {};
11
12  /** Used to skip problem elements */
13  var reSkip = /^<|^(?:button|map|select|textarea|object|iframe|option|optgroup)$/i;
14
15  /** Not all elements can be cloned in IE **/
16  var saveClones = /^(?:a|b|code|div|fieldset|h1|h2|h3|h4|h5|h6|i|label|li|ol|p|q|span|strong|style|table|tbody|td|th|tr|ul)$/i;
17
18  /** Detect whether the browser supports default html5 styles */
19  var supportsHtml5Styles;
20
21  /** Name of the expando, to work with multiple documents or to re-shiv one document */
22  var expando = '_html5shiv';
23
24  /** The id for the the documents expando */
25  var expanID = 0;
26
27  /** Cached data for each document */
28  var expandoData = {};
29
30  /** Detect whether the browser supports unknown elements */
31  var supportsUnknownElements;
32
33  (function() {
34    try {
35        var a = document.createElement('a');
36        a.innerHTML = '<xyz></xyz>';
37        //if the hidden property is implemented we can assume, that the browser supports basic HTML5 Styles
38        supportsHtml5Styles = ('hidden' in a);
39
40        supportsUnknownElements = a.childNodes.length == 1 || (function() {
41          // assign a false positive if unable to shiv
42          (document.createElement)('a');
43          var frag = document.createDocumentFragment();
44          return (
45            typeof frag.cloneNode == 'undefined' ||
46            typeof frag.createDocumentFragment == 'undefined' ||
47            typeof frag.createElement == 'undefined'
48          );
49        }());
50    } catch(e) {
51      // assign a false positive if detection fails => unable to shiv
52      supportsHtml5Styles = true;
53      supportsUnknownElements = true;
54    }
55
56  }());
57
58  /*--------------------------------------------------------------------------*/
59
60  /**
61   * Creates a style sheet with the given CSS text and adds it to the document.
62   * @private
63   * @param {Document} ownerDocument The document.
64   * @param {String} cssText The CSS text.
65   * @returns {StyleSheet} The style element.
66   */
67  function addStyleSheet(ownerDocument, cssText) {
68    var p = ownerDocument.createElement('p'),
69        parent = ownerDocument.getElementsByTagName('head')[0] || ownerDocument.documentElement;
70
71    p.innerHTML = 'x<style>' + cssText + '</style>';
72    return parent.insertBefore(p.lastChild, parent.firstChild);
73  }
74
75  /**
76   * Returns the value of `html5.elements` as an array.
77   * @private
78   * @returns {Array} An array of shived element node names.
79   */
80  function getElements() {
81    var elements = html5.elements;
82    return typeof elements == 'string' ? elements.split(' ') : elements;
83  }
84
85  /**
86   * Extends the built-in list of html5 elements
87   * @memberOf html5
88   * @param {String|Array} newElements whitespace separated list or array of new element names to shiv
89   * @param {Document} ownerDocument The context document.
90   */
91  function addElements(newElements, ownerDocument) {
92    var elements = html5.elements;
93    if(typeof elements != 'string'){
94      elements = elements.join(' ');
95    }
96    if(typeof newElements != 'string'){
97      newElements = newElements.join(' ');
98    }
99    html5.elements = elements +' '+ newElements;
100    shivDocument(ownerDocument);
101  }
102
103   /**
104   * Returns the data associated to the given document
105   * @private
106   * @param {Document} ownerDocument The document.
107   * @returns {Object} An object of data.
108   */
109  function getExpandoData(ownerDocument) {
110    var data = expandoData[ownerDocument[expando]];
111    if (!data) {
112        data = {};
113        expanID++;
114        ownerDocument[expando] = expanID;
115        expandoData[expanID] = data;
116    }
117    return data;
118  }
119
120  /**
121   * returns a shived element for the given nodeName and document
122   * @memberOf html5
123   * @param {String} nodeName name of the element
124   * @param {Document} ownerDocument The context document.
125   * @returns {Object} The shived element.
126   */
127  function createElement(nodeName, ownerDocument, data){
128    if (!ownerDocument) {
129        ownerDocument = document;
130    }
131    if(supportsUnknownElements){
132        return ownerDocument.createElement(nodeName);
133    }
134    if (!data) {
135        data = getExpandoData(ownerDocument);
136    }
137    var node;
138
139    if (data.cache[nodeName]) {
140        node = data.cache[nodeName].cloneNode();
141    } else if (saveClones.test(nodeName)) {
142        node = (data.cache[nodeName] = data.createElem(nodeName)).cloneNode();
143    } else {
144        node = data.createElem(nodeName);
145    }
146
147    // Avoid adding some elements to fragments in IE < 9 because
148    // * Attributes like `name` or `type` cannot be set/changed once an element
149    //   is inserted into a document/fragment
150    // * Link elements with `src` attributes that are inaccessible, as with
151    //   a 403 response, will cause the tab/window to crash
152    // * Script elements appended to fragments will execute when their `src`
153    //   or `text` property is set
154    return node.canHaveChildren && !reSkip.test(nodeName) && !node.tagUrn ? data.frag.appendChild(node) : node;
155  }
156
157  /**
158   * returns a shived DocumentFragment for the given document
159   * @memberOf html5
160   * @param {Document} ownerDocument The context document.
161   * @returns {Object} The shived DocumentFragment.
162   */
163  function createDocumentFragment(ownerDocument, data){
164    if (!ownerDocument) {
165        ownerDocument = document;
166    }
167    if(supportsUnknownElements){
168        return ownerDocument.createDocumentFragment();
169    }
170    data = data || getExpandoData(ownerDocument);
171    var clone = data.frag.cloneNode(),
172        i = 0,
173        elems = getElements(),
174        l = elems.length;
175    for(;i<l;i++){
176        clone.createElement(elems[i]);
177    }
178    return clone;
179  }
180
181  /**
182   * Shivs the `createElement` and `createDocumentFragment` methods of the document.
183   * @private
184   * @param {Document|DocumentFragment} ownerDocument The document.
185   * @param {Object} data of the document.
186   */
187  function shivMethods(ownerDocument, data) {
188    if (!data.cache) {
189        data.cache = {};
190        data.createElem = ownerDocument.createElement;
191        data.createFrag = ownerDocument.createDocumentFragment;
192        data.frag = data.createFrag();
193    }
194
195
196    ownerDocument.createElement = function(nodeName) {
197      //abort shiv
198      if (!html5.shivMethods) {
199          return data.createElem(nodeName);
200      }
201      return createElement(nodeName, ownerDocument, data);
202    };
203
204    ownerDocument.createDocumentFragment = Function('h,f', 'return function(){' +
205      'var n=f.cloneNode(),c=n.createElement;' +
206      'h.shivMethods&&(' +
207        // unroll the `createElement` calls
208        getElements().join().replace(/[\w\-:]+/g, function(nodeName) {
209          data.createElem(nodeName);
210          data.frag.createElement(nodeName);
211          return 'c("' + nodeName + '")';
212        }) +
213      ');return n}'
214    )(html5, data.frag);
215  }
216
217  /*--------------------------------------------------------------------------*/
218
219  /**
220   * Shivs the given document.
221   * @memberOf html5
222   * @param {Document} ownerDocument The document to shiv.
223   * @returns {Document} The shived document.
224   */
225  function shivDocument(ownerDocument) {
226    if (!ownerDocument) {
227        ownerDocument = document;
228    }
229    var data = getExpandoData(ownerDocument);
230
231    if (html5.shivCSS && !supportsHtml5Styles && !data.hasCSS) {
232      data.hasCSS = !!addStyleSheet(ownerDocument,
233        // corrects block display not defined in IE6/7/8/9
234        'article,aside,dialog,figcaption,figure,footer,header,hgroup,main,nav,section{display:block}' +
235        // adds styling not present in IE6/7/8/9
236        'mark{background:#FF0;color:#000}' +
237        // hides non-rendered elements
238        'template{display:none}'
239      );
240    }
241    if (!supportsUnknownElements) {
242      shivMethods(ownerDocument, data);
243    }
244    return ownerDocument;
245  }
246
247  /*--------------------------------------------------------------------------*/
248
249  /**
250   * The `html5` object is exposed so that more elements can be shived and
251   * existing shiving can be detected on iframes.
252   * @type Object
253   * @example
254   *
255   * // options can be changed before the script is included
256   * html5 = { 'elements': 'mark section', 'shivCSS': false, 'shivMethods': false };
257   */
258  var html5 = {
259
260    /**
261     * An array or space separated string of node names of the elements to shiv.
262     * @memberOf html5
263     * @type Array|String
264     */
265    'elements': options.elements || 'abbr article aside audio bdi canvas data datalist details dialog figcaption figure footer header hgroup main mark meter nav output picture progress section summary template time video',
266
267    /**
268     * current version of html5shiv
269     */
270    'version': version,
271
272    /**
273     * A flag to indicate that the HTML5 style sheet should be inserted.
274     * @memberOf html5
275     * @type Boolean
276     */
277    'shivCSS': (options.shivCSS !== false),
278
279    /**
280     * Is equal to true if a browser supports creating unknown/HTML5 elements
281     * @memberOf html5
282     * @type boolean
283     */
284    'supportsUnknownElements': supportsUnknownElements,
285
286    /**
287     * A flag to indicate that the document's `createElement` and `createDocumentFragment`
288     * methods should be overwritten.
289     * @memberOf html5
290     * @type Boolean
291     */
292    'shivMethods': (options.shivMethods !== false),
293
294    /**
295     * A string to describe the type of `html5` object ("default" or "default print").
296     * @memberOf html5
297     * @type String
298     */
299    'type': 'default',
300
301    // shivs the document according to the specified `html5` object options
302    'shivDocument': shivDocument,
303
304    //creates a shived element
305    createElement: createElement,
306
307    //creates a shived documentFragment
308    createDocumentFragment: createDocumentFragment,
309
310    //extends list of elements
311    addElements: addElements
312  };
313
314  /*--------------------------------------------------------------------------*/
315
316  // expose html5
317  window.html5 = html5;
318
319  // shiv the document
320  shivDocument(document);
321
322}(this, document));
323