modernizr.js

/*!
 * Modernizr v2.6.3pre
 * modernizr.com
 *
 * Copyright (c) Faruk Ates, Paul Irish, Alex Sexton
 * MIT License
 */

/*
 * Modernizr tests which native CSS3 and HTML5 features are available in the
 * current UA and makes the results available to you in two ways: as properties on
 * a global `Modernizr` object, and as classes on the `<html>` element. This
 * information allows you to progressively enhance your pages with a granular level
 * of control over the experience.
 *
 * Modernizr has an optional (*not included*) conditional resource loader called
 * `Modernizr.load()`, based on [Yepnope.js](http://yepnopejs.com). You can get a
 * build that includes `Modernizr.load()`, as well as choosing which feature tests
 * to include on the [Download page](http://www.modernizr.com/download/).
 *
 *
 * Authors        Faruk Ates, Paul Irish, Alex Sexton
 * Contributors   Ryan Seddon, Ben Alman
 */

window.Modernizr = (function( window, document, undefined ) {

    var version = '2.6.3pre',

    Modernizr = {},

    /*>>cssclasses*/
    // option for enabling the HTML classes to be added
    enableClasses = true,
    /*>>cssclasses*/

    docElement = document.documentElement,

    /**
     * Create our "modernizr" element that we do most feature tests on.
     */
    mod = 'modernizr',
    modElem = document.createElement(mod),
    mStyle = modElem.style,

    /**
     * Create the input element for various Web Forms feature tests.
     */
    inputElem /*>>inputelem*/ = document.createElement('input') /*>>inputelem*/ ,

    /*>>smile*/
    smile = ':)',
    /*>>smile*/

    toString = {}.toString,

    // TODO :: make the prefixes more granular
    /*>>prefixes*/
    // List of property values to set for css tests. See ticket #21
    prefixes = ' -webkit- -moz- -o- -ms- '.split(' '),
    /*>>prefixes*/

    /*>>domprefixes*/
    // Following spec is to expose vendor-specific style properties as:
    //   elem.style.WebkitBorderRadius
    // and the following would be incorrect:
    //   elem.style.webkitBorderRadius

    // Webkit ghosts their properties in lowercase but Opera & Moz do not.
    // Microsoft uses a lowercase `ms` instead of the correct `Ms` in IE8+
    //   erik.eae.net/archives/2008/03/10/21.48.10/

    // More here: github.com/Modernizr/Modernizr/issues/issue/21
    omPrefixes = 'Webkit Moz O ms',

    cssomPrefixes = omPrefixes.split(' '),

    domPrefixes = omPrefixes.toLowerCase().split(' '),
    /*>>domprefixes*/

    tests = {},
    inputs = {},
    attrs = {},

    classes = [],

    slice = classes.slice,

    featureName, // used in testing loop


    /*>>teststyles*/
    // Inject element with style element and some CSS rules
    injectElementWithStyles = function( rule, callback, nodes, testnames ) {

      var style, ret, node, docOverflow,
          div = document.createElement('div'),
          // After page load injecting a fake body doesn't work so check if body exists
          body = document.body,
          // IE6 and 7 won't return offsetWidth or offsetHeight unless it's in the body element, so we fake it.
          fakeBody = body || document.createElement('body');

      if ( parseInt(nodes, 10) ) {
          // In order not to give false positives we create a node for each test
          // This also allows the method to scale for unspecified uses
          while ( nodes-- ) {
              node = document.createElement('div');
              node.id = testnames ? testnames[nodes] : mod + (nodes + 1);
              div.appendChild(node);
          }
      }

      // <style> elements in IE6-9 are considered 'NoScope' elements and therefore will be removed
      // when injected with innerHTML. To get around this you need to prepend the 'NoScope' element
      // with a 'scoped' element, in our case the soft-hyphen entity as it won't mess with our measurements.
      // msdn.microsoft.com/en-us/library/ms533897%28VS.85%29.aspx
      // Documents served as xml will throw if using &shy; so use xml friendly encoded version. See issue #277
      style = ['&#173;','<style id="s', mod, '">', rule, '</style>'].join('');
      div.id = mod;
      // IE6 will false positive on some tests due to the style element inside the test div somehow interfering offsetHeight, so insert it into body or fakebody.
      // Opera will act all quirky when injecting elements in documentElement when page is served as xml, needs fakebody too. #270
      (body ? div : fakeBody).innerHTML += style;
      fakeBody.appendChild(div);
      if ( !body ) {
          //avoid crashing IE8, if background image is used
          fakeBody.style.background = '';
          //Safari 5.13/5.1.4 OSX stops loading if ::-webkit-scrollbar is used and scrollbars are visible
          fakeBody.style.overflow = 'hidden';
          docOverflow = docElement.style.overflow;
          docElement.style.overflow = 'hidden';
          docElement.appendChild(fakeBody);
      }

      ret = callback(div, rule);
      // If this is done after page load we don't want to remove the body so check if body exists
      if ( !body ) {
          fakeBody.parentNode.removeChild(fakeBody);
          docElement.style.overflow = docOverflow;
      } else {
          div.parentNode.removeChild(div);
      }

      return !!ret;

    },
    /*>>teststyles*/

    /*>>mq*/
    // adapted from matchMedia polyfill
    // by Scott Jehl and Paul Irish
    // gist.github.com/786768
    testMediaQuery = function( mq ) {

      var matchMedia = window.matchMedia || window.msMatchMedia;
      if ( matchMedia ) {
        return matchMedia(mq).matches;
      }

      var bool;

      injectElementWithStyles('@media ' + mq + ' { #' + mod + ' { position: absolute; } }', function( node ) {
        bool = (window.getComputedStyle ?
                  getComputedStyle(node, null) :
                  node.currentStyle)['position'] == 'absolute';
      });

      return bool;

     },
     /*>>mq*/


    /*>>hasevent*/
    //
    // isEventSupported determines if a given element supports the given event
    // kangax.github.com/iseventsupported/
    //
    // The following results are known incorrects:
    //   Modernizr.hasEvent("webkitTransitionEnd", elem) // false negative
    //   Modernizr.hasEvent("textInput") // in Webkit. github.com/Modernizr/Modernizr/issues/333
    //   ...
    isEventSupported = (function() {

      var TAGNAMES = {
        'select': 'input', 'change': 'input',
        'submit': 'form', 'reset': 'form',
        'error': 'img', 'load': 'img', 'abort': 'img'
      };

      function isEventSupported( eventName, element ) {

        element = element || document.createElement(TAGNAMES[eventName] || 'div');
        eventName = 'on' + eventName;

        // When using `setAttribute`, IE skips "unload", WebKit skips "unload" and "resize", whereas `in` "catches" those
        var isSupported = eventName in element;

        if ( !isSupported ) {
          // If it has no `setAttribute` (i.e. doesn't implement Node interface), try generic element
          if ( !element.setAttribute ) {
            element = document.createElement('div');
          }
          if ( element.setAttribute && element.removeAttribute ) {
            element.setAttribute(eventName, '');
            isSupported = is(element[eventName], 'function');

            // If property was created, "remove it" (by setting value to `undefined`)
            if ( !is(element[eventName], 'undefined') ) {
              element[eventName] = undefined;
            }
            element.removeAttribute(eventName);
          }
        }

        element = null;
        return isSupported;
      }
      return isEventSupported;
    })(),
    /*>>hasevent*/

    // TODO :: Add flag for hasownprop ? didn't last time

    // hasOwnProperty shim by kangax needed for Safari 2.0 support
    _hasOwnProperty = ({}).hasOwnProperty, hasOwnProp;

    if ( !is(_hasOwnProperty, 'undefined') && !is(_hasOwnProperty.call, 'undefined') ) {
      hasOwnProp = function (object, property) {
        return _hasOwnProperty.call(object, property);
      };
    }
    else {
      hasOwnProp = function (object, property) { /* yes, this can give false positives/negatives, but most of the time we don't care about those */
        return ((property in object) && is(object.constructor.prototype[property], 'undefined'));
      };
    }

    // Adapted from ES5-shim https://github.com/kriskowal/es5-shim/blob/master/es5-shim.js
    // es5.github.com/#x15.3.4.5

    if (!Function.prototype.bind) {
      Function.prototype.bind = function bind(that) {

        var target = this;

        if (typeof target != "function") {
            throw new TypeError();
        }

        var args = slice.call(arguments, 1),
            bound = function () {

            if (this instanceof bound) {

              var F = function(){};
              F.prototype = target.prototype;
              var self = new F();

              var result = target.apply(
                  self,
                  args.concat(slice.call(arguments))
              );
              if (Object(result) === result) {
                  return result;
              }
              return self;

            } else {

              return target.apply(
                  that,
                  args.concat(slice.call(arguments))
              );

            }

        };

        return bound;
      };
    }

    /**
     * setCss applies given styles to the Modernizr DOM node.
     */
    function setCss( str ) {
        mStyle.cssText = str;
    }

    /**
     * setCssAll extrapolates all vendor-specific css strings.
     */
    function setCssAll( str1, str2 ) {
        return setCss(prefixes.join(str1 + ';') + ( str2 || '' ));
    }

    /**
     * is returns a boolean for if typeof obj is exactly type.
     */
    function is( obj, type ) {
        return typeof obj === type;
    }

    /**
     * contains returns a boolean for if substr is found within str.
     */
    function contains( str, substr ) {
        return !!~('' + str).indexOf(substr);
    }

    /*>>testprop*/

    // testProps is a generic CSS / DOM property test.

    // In testing support for a given CSS property, it's legit to test:
    //    `elem.style[styleName] !== undefined`
    // If the property is supported it will return an empty string,
    // if unsupported it will return undefined.

    // We'll take advantage of this quick test and skip setting a style
    // on our modernizr element, but instead just testing undefined vs
    // empty string.

    // Because the testing of the CSS property names (with "-", as
    // opposed to the camelCase DOM properties) is non-portable and
    // non-standard but works in WebKit and IE (but not Gecko or Opera),
    // we explicitly reject properties with dashes so that authors
    // developing in WebKit or IE first don't end up with
    // browser-specific content by accident.

    function testProps( props, prefixed ) {
        for ( var i in props ) {
            var prop = props[i];
            if ( !contains(prop, "-") && mStyle[prop] !== undefined ) {
                return prefixed == 'pfx' ? prop : true;
            }
        }
        return false;
    }
    /*>>testprop*/

    // TODO :: add testDOMProps
    /**
     * testDOMProps is a generic DOM property test; if a browser supports
     *   a certain property, it won't return undefined for it.
     */
    function testDOMProps( props, obj, elem ) {
        for ( var i in props ) {
            var item = obj[props[i]];
            if ( item !== undefined) {

                // return the property name as a string
                if (elem === false) return props[i];

                // let's bind a function (and it has a bind method -- certain native objects that report that they are a
                // function don't [such as webkitAudioContext])
                if (is(item, 'function') && 'bind' in item){
                  // default to autobind unless override
                  return item.bind(elem || obj);
                }

                // return the unbound function or obj or value
                return item;
            }
        }
        return false;
    }

    /*>>testallprops*/
    /**
     * testPropsAll tests a list of DOM properties we want to check against.
     *   We specify literally ALL possible (known and/or likely) properties on
     *   the element including the non-vendor prefixed one, for forward-
     *   compatibility.
     */
    function testPropsAll( prop, prefixed, elem ) {

        var ucProp  = prop.charAt(0).toUpperCase() + prop.slice(1),
            props   = (prop + ' ' + cssomPrefixes.join(ucProp + ' ') + ucProp).split(' ');

        // did they call .prefixed('boxSizing') or are we just testing a prop?
        if(is(prefixed, "string") || is(prefixed, "undefined")) {
          return testProps(props, prefixed);

        // otherwise, they called .prefixed('requestAnimationFrame', window[, elem])
        } else {
          props = (prop + ' ' + (domPrefixes).join(ucProp + ' ') + ucProp).split(' ');
          return testDOMProps(props, prefixed, elem);
        }
    }
    /*>>testallprops*/


    /**
     * Tests
     * -----
     */

    /*>>webforms*/
    // input features and input types go directly onto the ret object, bypassing the tests loop.
    // Hold this guy to execute in a moment.
    function webforms() {
        /*>>input*/
        // Run through HTML5's new input attributes to see if the UA understands any.
        // We're using f which is the <input> element created early on
        // Mike Taylr has created a comprehensive resource for testing these attributes
        //   when applied to all input types:
        //   miketaylr.com/code/input-type-attr.html
        // spec: www.whatwg.org/specs/web-apps/current-work/multipage/the-input-element.html#input-type-attr-summary

        // Only input placeholder is tested while textarea's placeholder is not.
        // Currently Safari 4 and Opera 11 have support only for the input placeholder
        // Both tests are available in feature-detects/forms-placeholder.js
        Modernizr['input'] = (function( props ) {
            for ( var i = 0, len = props.length; i < len; i++ ) {
                attrs[ props[i] ] = !!(props[i] in inputElem);
            }
            if (attrs.list){
              // safari false positive's on datalist: webk.it/74252
              // see also github.com/Modernizr/Modernizr/issues/146
              attrs.list = !!(document.createElement('datalist') && window.HTMLDataListElement);
            }
            return attrs;
        })('autocomplete autofocus list placeholder max min multiple pattern required step'.split(' '));
        /*>>input*/

        /*>>inputtypes*/
        // Run through HTML5's new input types to see if the UA understands any.
        //   This is put behind the tests runloop because it doesn't return a
        //   true/false like all the other tests; instead, it returns an object
        //   containing each input type with its corresponding true/false value

        // Big thanks to @miketaylr for the html5 forms expertise. miketaylr.com/
        Modernizr['inputtypes'] = (function(props) {

            for ( var i = 0, bool, inputElemType, defaultView, len = props.length; i < len; i++ ) {

                inputElem.setAttribute('type', inputElemType = props[i]);
                bool = inputElem.type !== 'text';

                // We first check to see if the type we give it sticks..
                // If the type does, we feed it a textual value, which shouldn't be valid.
                // If the value doesn't stick, we know there's input sanitization which infers a custom UI
                if ( bool ) {

                    inputElem.value         = smile;
                    inputElem.style.cssText = 'position:absolute;visibility:hidden;';

                    if ( /^range$/.test(inputElemType) && inputElem.style.WebkitAppearance !== undefined ) {

                      docElement.appendChild(inputElem);
                      defaultView = document.defaultView;

                      // Safari 2-4 allows the smiley as a value, despite making a slider
                      bool =  defaultView.getComputedStyle &&
                              defaultView.getComputedStyle(inputElem, null).WebkitAppearance !== 'textfield' &&
                              // Mobile android web browser has false positive, so must
                              // check the height to see if the widget is actually there.
                              (inputElem.offsetHeight !== 0);

                      docElement.removeChild(inputElem);

                    } else if ( /^(search|tel)$/.test(inputElemType) ){
                      // Spec doesn't define any special parsing or detectable UI
                      //   behaviors so we pass these through as true

                      // Interestingly, opera fails the earlier test, so it doesn't
                      //  even make it here.

                    } else if ( /^(url|email)$/.test(inputElemType) ) {
                      // Real url and email support comes with prebaked validation.
                      bool = inputElem.checkValidity && inputElem.checkValidity() === false;

                    } else {
                      // If the upgraded input compontent rejects the :) text, we got a winner
                      bool = inputElem.value != smile;
                    }
                }

                inputs[ props[i] ] = !!bool;
            }
            return inputs;
        })('search tel url email datetime date month week time datetime-local number range color'.split(' '));
        /*>>inputtypes*/
    }
    /*>>webforms*/


    // End of test definitions
    // -----------------------


    // Run through all tests and detect their support in the current UA.
    // todo: hypothetically we could be doing an array of tests and use a basic loop here.
    for ( var feature in tests ) {
        if ( hasOwnProp(tests, feature) ) {
            // run the test, throw the return value into the Modernizr,
            //   then based on that boolean, define an appropriate className
            //   and push it into an array of classes we'll join later.
            featureName  = feature.toLowerCase();
            Modernizr[featureName] = tests[feature]();

            classes.push((Modernizr[featureName] ? '' : 'no-') + featureName);
        }
    }

    /*>>webforms*/
    // input tests need to run.
    Modernizr.input || webforms();
    /*>>webforms*/


    /**
     * addTest allows the user to define their own feature tests
     * the result will be added onto the Modernizr object,
     * as well as an appropriate className set on the html element
     *
     * @param feature - String naming the feature
     * @param test - Function returning true if feature is supported, false if not
     */
     Modernizr.addTest = function ( feature, test ) {
       if ( typeof feature == 'object' ) {
         for ( var key in feature ) {
           if ( hasOwnProp( feature, key ) ) {
             Modernizr.addTest( key, feature[ key ] );
           }
         }
       } else {

         feature = feature.toLowerCase();

         if ( Modernizr[feature] !== undefined ) {
           // we're going to quit if you're trying to overwrite an existing test
           // if we were to allow it, we'd do this:
           //   var re = new RegExp("\\b(no-)?" + feature + "\\b");
           //   docElement.className = docElement.className.replace( re, '' );
           // but, no rly, stuff 'em.
           return Modernizr;
         }

         test = typeof test == 'function' ? test() : test;

         if (typeof enableClasses !== "undefined" && enableClasses) {
           docElement.className += ' ' + (test ? '' : 'no-') + feature;
         }
         Modernizr[feature] = test;

       }

       return Modernizr; // allow chaining.
     };


    // Reset modElem.cssText to nothing to reduce memory footprint.
    setCss('');
    modElem = inputElem = null;

    /*>>shiv*/
    /*! HTML5 Shiv v3.6.1 | @afarkas @jdalton @jon_neal @rem | MIT/GPL2 Licensed */
    ;(function(window, document) {
    /*jshint evil:true */
      /** 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) {
          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) ? 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,figcaption,figure,footer,header,hgroup,nav,section{display:block}' +
            // adds styling not present in IE6/7/8/9
            'mark{background:#FF0;color:#000}'
          );
        }
        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 figcaption figure footer header hgroup mark meter nav output progress section summary time video',

        /**
         * 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));
    /*>>shiv*/

    // Assign private properties to the return object with prefix
    Modernizr._version      = version;

    // expose these for the plugin API. Look in the source for how to join() them against your input
    /*>>prefixes*/
    Modernizr._prefixes     = prefixes;
    /*>>prefixes*/
    /*>>domprefixes*/
    Modernizr._domPrefixes  = domPrefixes;
    Modernizr._cssomPrefixes  = cssomPrefixes;
    /*>>domprefixes*/

    /*>>mq*/
    // Modernizr.mq tests a given media query, live against the current state of the window
    // A few important notes:
    //   * If a browser does not support media queries at all (eg. oldIE) the mq() will always return false
    //   * A max-width or orientation query will be evaluated against the current state, which may change later.
    //   * You must specify values. Eg. If you are testing support for the min-width media query use:
    //       Modernizr.mq('(min-width:0)')
    // usage:
    // Modernizr.mq('only screen and (max-width:768)')
    Modernizr.mq            = testMediaQuery;
    /*>>mq*/

    /*>>hasevent*/
    // Modernizr.hasEvent() detects support for a given event, with an optional element to test on
    // Modernizr.hasEvent('gesturestart', elem)
    Modernizr.hasEvent      = isEventSupported;
    /*>>hasevent*/

    /*>>testprop*/
    // Modernizr.testProp() investigates whether a given style property is recognized
    // Note that the property names must be provided in the camelCase variant.
    // Modernizr.testProp('pointerEvents')
    Modernizr.testProp      = function(prop){
        return testProps([prop]);
    };
    /*>>testprop*/

    /*>>testallprops*/
    // Modernizr.testAllProps() investigates whether a given style property,
    //   or any of its vendor-prefixed variants, is recognized
    // Note that the property names must be provided in the camelCase variant.
    // Modernizr.testAllProps('boxSizing')
    Modernizr.testAllProps  = testPropsAll;
    /*>>testallprops*/


    /*>>teststyles*/
    // Modernizr.testStyles() allows you to add custom styles to the document and test an element afterwards
    // Modernizr.testStyles('#modernizr { position:absolute }', function(elem, rule){ ... })
    Modernizr.testStyles    = injectElementWithStyles;
    /*>>teststyles*/


    /*>>prefixed*/
    // Modernizr.prefixed() returns the prefixed or nonprefixed property name variant of your input
    // Modernizr.prefixed('boxSizing') // 'MozBoxSizing'

    // Properties must be passed as dom-style camelcase, rather than `box-sizing` hypentated style.
    // Return values will also be the camelCase variant, if you need to translate that to hypenated style use:
    //
    //     str.replace(/([A-Z])/g, function(str,m1){ return '-' + m1.toLowerCase(); }).replace(/^ms-/,'-ms-');

    // If you're trying to ascertain which transition end event to bind to, you might do something like...
    //
    //     var transEndEventNames = {
    //       'WebkitTransition' : 'webkitTransitionEnd',
    //       'MozTransition'    : 'transitionend',
    //       'OTransition'      : 'oTransitionEnd',
    //       'msTransition'     : 'MSTransitionEnd',
    //       'transition'       : 'transitionend'
    //     },
    //     transEndEventName = transEndEventNames[ Modernizr.prefixed('transition') ];

    Modernizr.prefixed      = function(prop, obj, elem){
      if(!obj) {
        return testPropsAll(prop, 'pfx');
      } else {
        // Testing DOM property e.g. Modernizr.prefixed('requestAnimationFrame', window) // 'mozRequestAnimationFrame'
        return testPropsAll(prop, obj, elem);
      }
    };
    /*>>prefixed*/


    /*>>cssclasses*/
    // Remove "no-js" class from <html> element, if it exists:
    docElement.className = docElement.className.replace(/(^|\s)no-js(\s|$)/, '$1$2') +

                            // Add the new classes to the <html> element.
                            (enableClasses ? ' js ' + classes.join(' ') : '');
    /*>>cssclasses*/

    return Modernizr;

})(this, this.document);