CoCalc -- modernizr.js

GitHub Repository: REMitchell/python-crawling
Path: blob/master/6-Selenium/phantomjs/examples/modernizr.js
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/*!
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 * Modernizr v2.8.2
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 * www.modernizr.com
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 *
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 * Copyright (c) Faruk Ates, Paul Irish, Alex Sexton
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 * Available under the BSD and MIT licenses: www.modernizr.com/license/
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 */
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/*
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 * Modernizr tests which native CSS3 and HTML5 features are available in
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 * the current UA and makes the results available to you in two ways:
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 * as properties on a global Modernizr object, and as classes on the
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 * <html> element. This information allows you to progressively enhance
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 * your pages with a granular level of control over the experience.
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 *
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 * Modernizr has an optional (not included) conditional resource loader
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 * called Modernizr.load(), based on Yepnope.js (yepnopejs.com).
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 * To get a build that includes Modernizr.load(), as well as choosing
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 * which tests to include, go to www.modernizr.com/download/
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 *
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 * Authors        Faruk Ates, Paul Irish, Alex Sexton
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 * Contributors   Ryan Seddon, Ben Alman
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 */
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window.Modernizr = (function( window, document, undefined ) {
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    var version = '2.8.2',
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    Modernizr = {},
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    /*>>cssclasses*/
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    // option for enabling the HTML classes to be added
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    enableClasses = true,
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    /*>>cssclasses*/
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    docElement = document.documentElement,
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    /**
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     * Create our "modernizr" element that we do most feature tests on.
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     */
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    mod = 'modernizr',
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    modElem = document.createElement(mod),
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    mStyle = modElem.style,
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    /**
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     * Create the input element for various Web Forms feature tests.
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     */
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    inputElem /*>>inputelem*/ = document.createElement('input') /*>>inputelem*/ ,
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    /*>>smile*/
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    smile = ':)',
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    /*>>smile*/
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    toString = {}.toString,
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    // TODO :: make the prefixes more granular
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    /*>>prefixes*/
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    // List of property values to set for css tests. See ticket #21
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    prefixes = ' -webkit- -moz- -o- -ms- '.split(' '),
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    /*>>prefixes*/
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    /*>>domprefixes*/
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    // Following spec is to expose vendor-specific style properties as:
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    //   elem.style.WebkitBorderRadius
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    // and the following would be incorrect:
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    //   elem.style.webkitBorderRadius
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    // Webkit ghosts their properties in lowercase but Opera & Moz do not.
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    // Microsoft uses a lowercase `ms` instead of the correct `Ms` in IE8+
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    //   erik.eae.net/archives/2008/03/10/21.48.10/
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    // More here: github.com/Modernizr/Modernizr/issues/issue/21
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    omPrefixes = 'Webkit Moz O ms',
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    cssomPrefixes = omPrefixes.split(' '),
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    domPrefixes = omPrefixes.toLowerCase().split(' '),
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    /*>>domprefixes*/
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    /*>>ns*/
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    ns = {'svg': 'http://www.w3.org/2000/svg'},
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    /*>>ns*/
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    tests = {},
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    inputs = {},
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    attrs = {},
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    classes = [],
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    slice = classes.slice,
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    featureName, // used in testing loop
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    /*>>teststyles*/
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    // Inject element with style element and some CSS rules
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    injectElementWithStyles = function( rule, callback, nodes, testnames ) {
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      var style, ret, node, docOverflow,
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          div = document.createElement('div'),
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          // After page load injecting a fake body doesn't work so check if body exists
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          body = document.body,
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          // IE6 and 7 won't return offsetWidth or offsetHeight unless it's in the body element, so we fake it.
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          fakeBody = body || document.createElement('body');
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      if ( parseInt(nodes, 10) ) {
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          // In order not to give false positives we create a node for each test
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          // This also allows the method to scale for unspecified uses
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          while ( nodes-- ) {
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              node = document.createElement('div');
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              node.id = testnames ? testnames[nodes] : mod + (nodes + 1);
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              div.appendChild(node);
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          }
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      }
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      // <style> elements in IE6-9 are considered 'NoScope' elements and therefore will be removed
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      // when injected with innerHTML. To get around this you need to prepend the 'NoScope' element
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      // with a 'scoped' element, in our case the soft-hyphen entity as it won't mess with our measurements.
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      // msdn.microsoft.com/en-us/library/ms533897%28VS.85%29.aspx
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      // Documents served as xml will throw if using &shy; so use xml friendly encoded version. See issue #277
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      style = ['&#173;','<style id="s', mod, '">', rule, '</style>'].join('');
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      div.id = mod;
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      // 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.
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      // Opera will act all quirky when injecting elements in documentElement when page is served as xml, needs fakebody too. #270
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      (body ? div : fakeBody).innerHTML += style;
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      fakeBody.appendChild(div);
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      if ( !body ) {
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          //avoid crashing IE8, if background image is used
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          fakeBody.style.background = '';
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          //Safari 5.13/5.1.4 OSX stops loading if ::-webkit-scrollbar is used and scrollbars are visible
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          fakeBody.style.overflow = 'hidden';
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          docOverflow = docElement.style.overflow;
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          docElement.style.overflow = 'hidden';
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          docElement.appendChild(fakeBody);
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      }
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      ret = callback(div, rule);
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      // If this is done after page load we don't want to remove the body so check if body exists
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      if ( !body ) {
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          fakeBody.parentNode.removeChild(fakeBody);
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          docElement.style.overflow = docOverflow;
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      } else {
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          div.parentNode.removeChild(div);
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      }
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      return !!ret;
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    },
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    /*>>teststyles*/
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    /*>>mq*/
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    // adapted from matchMedia polyfill
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    // by Scott Jehl and Paul Irish
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    // gist.github.com/786768
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    testMediaQuery = function( mq ) {
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      var matchMedia = window.matchMedia || window.msMatchMedia;
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      if ( matchMedia ) {
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        return matchMedia(mq) && matchMedia(mq).matches || false;
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      }
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      var bool;
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      injectElementWithStyles('@media ' + mq + ' { #' + mod + ' { position: absolute; } }', function( node ) {
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        bool = (window.getComputedStyle ?
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                  getComputedStyle(node, null) :
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                  node.currentStyle)['position'] == 'absolute';
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      });
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      return bool;
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     },
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     /*>>mq*/
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    /*>>hasevent*/
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    //
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    // isEventSupported determines if a given element supports the given event
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    // kangax.github.com/iseventsupported/
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    //
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    // The following results are known incorrects:
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    //   Modernizr.hasEvent("webkitTransitionEnd", elem) // false negative
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    //   Modernizr.hasEvent("textInput") // in Webkit. github.com/Modernizr/Modernizr/issues/333
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    //   ...
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    isEventSupported = (function() {
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      var TAGNAMES = {
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        'select': 'input', 'change': 'input',
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        'submit': 'form', 'reset': 'form',
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        'error': 'img', 'load': 'img', 'abort': 'img'
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      };
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      function isEventSupported( eventName, element ) {
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        element = element || document.createElement(TAGNAMES[eventName] || 'div');
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        eventName = 'on' + eventName;
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        // When using `setAttribute`, IE skips "unload", WebKit skips "unload" and "resize", whereas `in` "catches" those
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        var isSupported = eventName in element;
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        if ( !isSupported ) {
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          // If it has no `setAttribute` (i.e. doesn't implement Node interface), try generic element
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          if ( !element.setAttribute ) {
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            element = document.createElement('div');
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          }
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          if ( element.setAttribute && element.removeAttribute ) {
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            element.setAttribute(eventName, '');
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            isSupported = is(element[eventName], 'function');
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            // If property was created, "remove it" (by setting value to `undefined`)
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            if ( !is(element[eventName], 'undefined') ) {
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              element[eventName] = undefined;
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            }
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            element.removeAttribute(eventName);
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          }
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        }
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        element = null;
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        return isSupported;
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      }
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      return isEventSupported;
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    })(),
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    /*>>hasevent*/
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    // TODO :: Add flag for hasownprop ? didn't last time
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    // hasOwnProperty shim by kangax needed for Safari 2.0 support
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    _hasOwnProperty = ({}).hasOwnProperty, hasOwnProp;
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    if ( !is(_hasOwnProperty, 'undefined') && !is(_hasOwnProperty.call, 'undefined') ) {
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      hasOwnProp = function (object, property) {
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        return _hasOwnProperty.call(object, property);
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      };
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    }
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    else {
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      hasOwnProp = function (object, property) { /* yes, this can give false positives/negatives, but most of the time we don't care about those */
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        return ((property in object) && is(object.constructor.prototype[property], 'undefined'));
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      };
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    }
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    // Adapted from ES5-shim https://github.com/kriskowal/es5-shim/blob/master/es5-shim.js
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    // es5.github.com/#x15.3.4.5
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    if (!Function.prototype.bind) {
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      Function.prototype.bind = function bind(that) {
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        var target = this;
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        if (typeof target != "function") {
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            throw new TypeError();
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        }
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        var args = slice.call(arguments, 1),
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            bound = function () {
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            if (this instanceof bound) {
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              var F = function(){};
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              F.prototype = target.prototype;
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              var self = new F();
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              var result = target.apply(
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                  self,
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                  args.concat(slice.call(arguments))
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              );
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              if (Object(result) === result) {
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                  return result;
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              }
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              return self;
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            } else {
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              return target.apply(
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                  that,
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                  args.concat(slice.call(arguments))
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              );
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            }
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280
        };
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        return bound;
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      };
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    }
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    /**
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     * setCss applies given styles to the Modernizr DOM node.
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     */
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    function setCss( str ) {
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        mStyle.cssText = str;
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    }
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    /**
294
     * setCssAll extrapolates all vendor-specific css strings.
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     */
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    function setCssAll( str1, str2 ) {
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        return setCss(prefixes.join(str1 + ';') + ( str2 || '' ));
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    }
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300
    /**
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     * is returns a boolean for if typeof obj is exactly type.
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     */
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    function is( obj, type ) {
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        return typeof obj === type;
305
    }
306

307
    /**
308
     * contains returns a boolean for if substr is found within str.
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     */
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    function contains( str, substr ) {
311
        return !!~('' + str).indexOf(substr);
312
    }
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    /*>>testprop*/
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    // testProps is a generic CSS / DOM property test.
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    // In testing support for a given CSS property, it's legit to test:
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    //    `elem.style[styleName] !== undefined`
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    // If the property is supported it will return an empty string,
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    // if unsupported it will return undefined.
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    // We'll take advantage of this quick test and skip setting a style
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    // on our modernizr element, but instead just testing undefined vs
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    // empty string.
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    // Because the testing of the CSS property names (with "-", as
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    // opposed to the camelCase DOM properties) is non-portable and
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    // non-standard but works in WebKit and IE (but not Gecko or Opera),
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    // we explicitly reject properties with dashes so that authors
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    // developing in WebKit or IE first don't end up with
332
    // browser-specific content by accident.
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    function testProps( props, prefixed ) {
335
        for ( var i in props ) {
336
            var prop = props[i];
337
            if ( !contains(prop, "-") && mStyle[prop] !== undefined ) {
338
                return prefixed == 'pfx' ? prop : true;
339
            }
340
        }
341
        return false;
342
    }
343
    /*>>testprop*/
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    // TODO :: add testDOMProps
346
    /**
347
     * testDOMProps is a generic DOM property test; if a browser supports
348
     *   a certain property, it won't return undefined for it.
349
     */
350
    function testDOMProps( props, obj, elem ) {
351
        for ( var i in props ) {
352
            var item = obj[props[i]];
353
            if ( item !== undefined) {
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                // return the property name as a string
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                if (elem === false) return props[i];
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                // let's bind a function
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                if (is(item, 'function')){
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                  // default to autobind unless override
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                  return item.bind(elem || obj);
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                }
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                // return the unbound function or obj or value
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                return item;
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            }
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        }
368
        return false;
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    }
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371
    /*>>testallprops*/
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    /**
373
     * testPropsAll tests a list of DOM properties we want to check against.
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     *   We specify literally ALL possible (known and/or likely) properties on
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     *   the element including the non-vendor prefixed one, for forward-
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     *   compatibility.
377
     */
378
    function testPropsAll( prop, prefixed, elem ) {
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        var ucProp  = prop.charAt(0).toUpperCase() + prop.slice(1),
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            props   = (prop + ' ' + cssomPrefixes.join(ucProp + ' ') + ucProp).split(' ');
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383
        // did they call .prefixed('boxSizing') or are we just testing a prop?
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        if(is(prefixed, "string") || is(prefixed, "undefined")) {
385
          return testProps(props, prefixed);
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387
        // otherwise, they called .prefixed('requestAnimationFrame', window[, elem])
388
        } else {
389
          props = (prop + ' ' + (domPrefixes).join(ucProp + ' ') + ucProp).split(' ');
390
          return testDOMProps(props, prefixed, elem);
391
        }
392
    }
393
    /*>>testallprops*/
394

395

396
    /**
397
     * Tests
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     * -----
399
     */
400

401
    // The *new* flexbox
402
    // dev.w3.org/csswg/css3-flexbox
403

404
    tests['flexbox'] = function() {
405
      return testPropsAll('flexWrap');
406
    };
407

408
    // The *old* flexbox
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    // www.w3.org/TR/2009/WD-css3-flexbox-20090723/
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411
    tests['flexboxlegacy'] = function() {
412
        return testPropsAll('boxDirection');
413
    };
414

415
    // On the S60 and BB Storm, getContext exists, but always returns undefined
416
    // so we actually have to call getContext() to verify
417
    // github.com/Modernizr/Modernizr/issues/issue/97/
418

419
    tests['canvas'] = function() {
420
        var elem = document.createElement('canvas');
421
        return !!(elem.getContext && elem.getContext('2d'));
422
    };
423

424
    tests['canvastext'] = function() {
425
        return !!(Modernizr['canvas'] && is(document.createElement('canvas').getContext('2d').fillText, 'function'));
426
    };
427

428
    // webk.it/70117 is tracking a legit WebGL feature detect proposal
429

430
    // We do a soft detect which may false positive in order to avoid
431
    // an expensive context creation: bugzil.la/732441
432

433
    tests['webgl'] = function() {
434
        return !!window.WebGLRenderingContext;
435
    };
436

437
    /*
438
     * The Modernizr.touch test only indicates if the browser supports
439
     *    touch events, which does not necessarily reflect a touchscreen
440
     *    device, as evidenced by tablets running Windows 7 or, alas,
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     *    the Palm Pre / WebOS (touch) phones.
442
     *
443
     * Additionally, Chrome (desktop) used to lie about its support on this,
444
     *    but that has since been rectified: crbug.com/36415
445
     *
446
     * We also test for Firefox 4 Multitouch Support.
447
     *
448
     * For more info, see: modernizr.github.com/Modernizr/touch.html
449
     */
450

451
    tests['touch'] = function() {
452
        var bool;
453

454
        if(('ontouchstart' in window) || window.DocumentTouch && document instanceof DocumentTouch) {
455
          bool = true;
456
        } else {
457
          injectElementWithStyles(['@media (',prefixes.join('touch-enabled),('),mod,')','{#modernizr{top:9px;position:absolute}}'].join(''), function( node ) {
458
            bool = node.offsetTop === 9;
459
          });
460
        }
461

462
        return bool;
463
    };
464

465

466
    // geolocation is often considered a trivial feature detect...
467
    // Turns out, it's quite tricky to get right:
468
    //
469
    // Using !!navigator.geolocation does two things we don't want. It:
470
    //   1. Leaks memory in IE9: github.com/Modernizr/Modernizr/issues/513
471
    //   2. Disables page caching in WebKit: webk.it/43956
472
    //
473
    // Meanwhile, in Firefox < 8, an about:config setting could expose
474
    // a false positive that would throw an exception: bugzil.la/688158
475

476
    tests['geolocation'] = function() {
477
        return 'geolocation' in navigator;
478
    };
479

480

481
    tests['postmessage'] = function() {
482
      return !!window.postMessage;
483
    };
484

485

486
    // Chrome incognito mode used to throw an exception when using openDatabase
487
    // It doesn't anymore.
488
    tests['websqldatabase'] = function() {
489
      return !!window.openDatabase;
490
    };
491

492
    // Vendors had inconsistent prefixing with the experimental Indexed DB:
493
    // - Webkit's implementation is accessible through webkitIndexedDB
494
    // - Firefox shipped moz_indexedDB before FF4b9, but since then has been mozIndexedDB
495
    // For speed, we don't test the legacy (and beta-only) indexedDB
496
    tests['indexedDB'] = function() {
497
      return !!testPropsAll("indexedDB", window);
498
    };
499

500
    // documentMode logic from YUI to filter out IE8 Compat Mode
501
    //   which false positives.
502
    tests['hashchange'] = function() {
503
      return isEventSupported('hashchange', window) && (document.documentMode === undefined || document.documentMode > 7);
504
    };
505

506
    // Per 1.6:
507
    // This used to be Modernizr.historymanagement but the longer
508
    // name has been deprecated in favor of a shorter and property-matching one.
509
    // The old API is still available in 1.6, but as of 2.0 will throw a warning,
510
    // and in the first release thereafter disappear entirely.
511
    tests['history'] = function() {
512
      return !!(window.history && history.pushState);
513
    };
514

515
    tests['draganddrop'] = function() {
516
        var div = document.createElement('div');
517
        return ('draggable' in div) || ('ondragstart' in div && 'ondrop' in div);
518
    };
519

520
    // FF3.6 was EOL'ed on 4/24/12, but the ESR version of FF10
521
    // will be supported until FF19 (2/12/13), at which time, ESR becomes FF17.
522
    // FF10 still uses prefixes, so check for it until then.
523
    // for more ESR info, see: mozilla.org/en-US/firefox/organizations/faq/
524
    tests['websockets'] = function() {
525
        return 'WebSocket' in window || 'MozWebSocket' in window;
526
    };
527

528

529
    // css-tricks.com/rgba-browser-support/
530
    tests['rgba'] = function() {
531
        // Set an rgba() color and check the returned value
532

533
        setCss('background-color:rgba(150,255,150,.5)');
534

535
        return contains(mStyle.backgroundColor, 'rgba');
536
    };
537

538
    tests['hsla'] = function() {
539
        // Same as rgba(), in fact, browsers re-map hsla() to rgba() internally,
540
        //   except IE9 who retains it as hsla
541

542
        setCss('background-color:hsla(120,40%,100%,.5)');
543

544
        return contains(mStyle.backgroundColor, 'rgba') || contains(mStyle.backgroundColor, 'hsla');
545
    };
546

547
    tests['multiplebgs'] = function() {
548
        // Setting multiple images AND a color on the background shorthand property
549
        //  and then querying the style.background property value for the number of
550
        //  occurrences of "url(" is a reliable method for detecting ACTUAL support for this!
551

552
        setCss('background:url(https://),url(https://),red url(https://)');
553

554
        // If the UA supports multiple backgrounds, there should be three occurrences
555
        //   of the string "url(" in the return value for elemStyle.background
556

557
        return (/(url\s*\(.*?){3}/).test(mStyle.background);
558
    };
559

560

561

562
    // this will false positive in Opera Mini
563
    //   github.com/Modernizr/Modernizr/issues/396
564

565
    tests['backgroundsize'] = function() {
566
        return testPropsAll('backgroundSize');
567
    };
568

569
    tests['borderimage'] = function() {
570
        return testPropsAll('borderImage');
571
    };
572

573

574
    // Super comprehensive table about all the unique implementations of
575
    // border-radius: muddledramblings.com/table-of-css3-border-radius-compliance
576

577
    tests['borderradius'] = function() {
578
        return testPropsAll('borderRadius');
579
    };
580

581
    // WebOS unfortunately false positives on this test.
582
    tests['boxshadow'] = function() {
583
        return testPropsAll('boxShadow');
584
    };
585

586
    // FF3.0 will false positive on this test
587
    tests['textshadow'] = function() {
588
        return document.createElement('div').style.textShadow === '';
589
    };
590

591

592
    tests['opacity'] = function() {
593
        // Browsers that actually have CSS Opacity implemented have done so
594
        //  according to spec, which means their return values are within the
595
        //  range of [0.0,1.0] - including the leading zero.
596

597
        setCssAll('opacity:.55');
598

599
        // The non-literal . in this regex is intentional:
600
        //   German Chrome returns this value as 0,55
601
        // github.com/Modernizr/Modernizr/issues/#issue/59/comment/516632
602
        return (/^0.55$/).test(mStyle.opacity);
603
    };
604

605

606
    // Note, Android < 4 will pass this test, but can only animate
607
    //   a single property at a time
608
    //   goo.gl/v3V4Gp
609
    tests['cssanimations'] = function() {
610
        return testPropsAll('animationName');
611
    };
612

613

614
    tests['csscolumns'] = function() {
615
        return testPropsAll('columnCount');
616
    };
617

618

619
    tests['cssgradients'] = function() {
620
        /**
621
         * For CSS Gradients syntax, please see:
622
         * webkit.org/blog/175/introducing-css-gradients/
623
         * developer.mozilla.org/en/CSS/-moz-linear-gradient
624
         * developer.mozilla.org/en/CSS/-moz-radial-gradient
625
         * dev.w3.org/csswg/css3-images/#gradients-
626
         */
627

628
        var str1 = 'background-image:',
629
            str2 = 'gradient(linear,left top,right bottom,from(#9f9),to(white));',
630
            str3 = 'linear-gradient(left top,#9f9, white);';
631

632
        setCss(
633
             // legacy webkit syntax (FIXME: remove when syntax not in use anymore)
634
              (str1 + '-webkit- '.split(' ').join(str2 + str1) +
635
             // standard syntax             // trailing 'background-image:'
636
              prefixes.join(str3 + str1)).slice(0, -str1.length)
637
        );
638

639
        return contains(mStyle.backgroundImage, 'gradient');
640
    };
641

642

643
    tests['cssreflections'] = function() {
644
        return testPropsAll('boxReflect');
645
    };
646

647

648
    tests['csstransforms'] = function() {
649
        return !!testPropsAll('transform');
650
    };
651

652

653
    tests['csstransforms3d'] = function() {
654

655
        var ret = !!testPropsAll('perspective');
656

657
        // Webkit's 3D transforms are passed off to the browser's own graphics renderer.
658
        //   It works fine in Safari on Leopard and Snow Leopard, but not in Chrome in
659
        //   some conditions. As a result, Webkit typically recognizes the syntax but
660
        //   will sometimes throw a false positive, thus we must do a more thorough check:
661
        if ( ret && 'webkitPerspective' in docElement.style ) {
662

663
          // Webkit allows this media query to succeed only if the feature is enabled.
664
          // `@media (transform-3d),(-webkit-transform-3d){ ... }`
665
          injectElementWithStyles('@media (transform-3d),(-webkit-transform-3d){#modernizr{left:9px;position:absolute;height:3px;}}', function( node, rule ) {
666
            ret = node.offsetLeft === 9 && node.offsetHeight === 3;
667
          });
668
        }
669
        return ret;
670
    };
671

672

673
    tests['csstransitions'] = function() {
674
        return testPropsAll('transition');
675
    };
676

677

678
    /*>>fontface*/
679
    // @font-face detection routine by Diego Perini
680
    // javascript.nwbox.com/CSSSupport/
681

682
    // false positives:
683
    //   WebOS github.com/Modernizr/Modernizr/issues/342
684
    //   WP7   github.com/Modernizr/Modernizr/issues/538
685
    tests['fontface'] = function() {
686
        var bool;
687

688
        injectElementWithStyles('@font-face {font-family:"font";src:url("https://")}', function( node, rule ) {
689
          var style = document.getElementById('smodernizr'),
690
              sheet = style.sheet || style.styleSheet,
691
              cssText = sheet ? (sheet.cssRules && sheet.cssRules[0] ? sheet.cssRules[0].cssText : sheet.cssText || '') : '';
692

693
          bool = /src/i.test(cssText) && cssText.indexOf(rule.split(' ')[0]) === 0;
694
        });
695

696
        return bool;
697
    };
698
    /*>>fontface*/
699

700
    // CSS generated content detection
701
    tests['generatedcontent'] = function() {
702
        var bool;
703

704
        injectElementWithStyles(['#',mod,'{font:0/0 a}#',mod,':after{content:"',smile,'";visibility:hidden;font:3px/1 a}'].join(''), function( node ) {
705
          bool = node.offsetHeight >= 3;
706
        });
707

708
        return bool;
709
    };
710

711

712

713
    // These tests evaluate support of the video/audio elements, as well as
714
    // testing what types of content they support.
715
    //
716
    // We're using the Boolean constructor here, so that we can extend the value
717
    // e.g.  Modernizr.video     // true
718
    //       Modernizr.video.ogg // 'probably'
719
    //
720
    // Codec values from : github.com/NielsLeenheer/html5test/blob/9106a8/index.html#L845
721
    //                     thx to NielsLeenheer and zcorpan
722

723
    // Note: in some older browsers, "no" was a return value instead of empty string.
724
    //   It was live in FF3.5.0 and 3.5.1, but fixed in 3.5.2
725
    //   It was also live in Safari 4.0.0 - 4.0.4, but fixed in 4.0.5
726

727
    tests['video'] = function() {
728
        var elem = document.createElement('video'),
729
            bool = false;
730

731
        // IE9 Running on Windows Server SKU can cause an exception to be thrown, bug #224
732
        try {
733
            if ( bool = !!elem.canPlayType ) {
734
                bool      = new Boolean(bool);
735
                bool.ogg  = elem.canPlayType('video/ogg; codecs="theora"')      .replace(/^no$/,'');
736

737
                // Without QuickTime, this value will be `undefined`. github.com/Modernizr/Modernizr/issues/546
738
                bool.h264 = elem.canPlayType('video/mp4; codecs="avc1.42E01E"') .replace(/^no$/,'');
739

740
                bool.webm = elem.canPlayType('video/webm; codecs="vp8, vorbis"').replace(/^no$/,'');
741
            }
742

743
        } catch(e) { }
744

745
        return bool;
746
    };
747

748
    tests['audio'] = function() {
749
        var elem = document.createElement('audio'),
750
            bool = false;
751

752
        try {
753
            if ( bool = !!elem.canPlayType ) {
754
                bool      = new Boolean(bool);
755
                bool.ogg  = elem.canPlayType('audio/ogg; codecs="vorbis"').replace(/^no$/,'');
756
                bool.mp3  = elem.canPlayType('audio/mpeg;')               .replace(/^no$/,'');
757

758
                // Mimetypes accepted:
759
                //   developer.mozilla.org/En/Media_formats_supported_by_the_audio_and_video_elements
760
                //   bit.ly/iphoneoscodecs
761
                bool.wav  = elem.canPlayType('audio/wav; codecs="1"')     .replace(/^no$/,'');
762
                bool.m4a  = ( elem.canPlayType('audio/x-m4a;')            ||
763
                              elem.canPlayType('audio/aac;'))             .replace(/^no$/,'');
764
            }
765
        } catch(e) { }
766

767
        return bool;
768
    };
769

770

771
    // In FF4, if disabled, window.localStorage should === null.
772

773
    // Normally, we could not test that directly and need to do a
774
    //   `('localStorage' in window) && ` test first because otherwise Firefox will
775
    //   throw bugzil.la/365772 if cookies are disabled
776

777
    // Also in iOS5 Private Browsing mode, attempting to use localStorage.setItem
778
    // will throw the exception:
779
    //   QUOTA_EXCEEDED_ERRROR DOM Exception 22.
780
    // Peculiarly, getItem and removeItem calls do not throw.
781

782
    // Because we are forced to try/catch this, we'll go aggressive.
783

784
    // Just FWIW: IE8 Compat mode supports these features completely:
785
    //   www.quirksmode.org/dom/html5.html
786
    // But IE8 doesn't support either with local files
787

788
    tests['localstorage'] = function() {
789
        try {
790
            localStorage.setItem(mod, mod);
791
            localStorage.removeItem(mod);
792
            return true;
793
        } catch(e) {
794
            return false;
795
        }
796
    };
797

798
    tests['sessionstorage'] = function() {
799
        try {
800
            sessionStorage.setItem(mod, mod);
801
            sessionStorage.removeItem(mod);
802
            return true;
803
        } catch(e) {
804
            return false;
805
        }
806
    };
807

808

809
    tests['webworkers'] = function() {
810
        return !!window.Worker;
811
    };
812

813

814
    tests['applicationcache'] = function() {
815
        return !!window.applicationCache;
816
    };
817

818

819
    // Thanks to Erik Dahlstrom
820
    tests['svg'] = function() {
821
        return !!document.createElementNS && !!document.createElementNS(ns.svg, 'svg').createSVGRect;
822
    };
823

824
    // specifically for SVG inline in HTML, not within XHTML
825
    // test page: paulirish.com/demo/inline-svg
826
    tests['inlinesvg'] = function() {
827
      var div = document.createElement('div');
828
      div.innerHTML = '<svg/>';
829
      return (div.firstChild && div.firstChild.namespaceURI) == ns.svg;
830
    };
831

832
    // SVG SMIL animation
833
    tests['smil'] = function() {
834
        return !!document.createElementNS && /SVGAnimate/.test(toString.call(document.createElementNS(ns.svg, 'animate')));
835
    };
836

837
    // This test is only for clip paths in SVG proper, not clip paths on HTML content
838
    // demo: srufaculty.sru.edu/david.dailey/svg/newstuff/clipPath4.svg
839

840
    // However read the comments to dig into applying SVG clippaths to HTML content here:
841
    //   github.com/Modernizr/Modernizr/issues/213#issuecomment-1149491
842
    tests['svgclippaths'] = function() {
843
        return !!document.createElementNS && /SVGClipPath/.test(toString.call(document.createElementNS(ns.svg, 'clipPath')));
844
    };
845

846
    /*>>webforms*/
847
    // input features and input types go directly onto the ret object, bypassing the tests loop.
848
    // Hold this guy to execute in a moment.
849
    function webforms() {
850
        /*>>input*/
851
        // Run through HTML5's new input attributes to see if the UA understands any.
852
        // We're using f which is the <input> element created early on
853
        // Mike Taylr has created a comprehensive resource for testing these attributes
854
        //   when applied to all input types:
855
        //   miketaylr.com/code/input-type-attr.html
856
        // spec: www.whatwg.org/specs/web-apps/current-work/multipage/the-input-element.html#input-type-attr-summary
857

858
        // Only input placeholder is tested while textarea's placeholder is not.
859
        // Currently Safari 4 and Opera 11 have support only for the input placeholder
860
        // Both tests are available in feature-detects/forms-placeholder.js
861
        Modernizr['input'] = (function( props ) {
862
            for ( var i = 0, len = props.length; i < len; i++ ) {
863
                attrs[ props[i] ] = !!(props[i] in inputElem);
864
            }
865
            if (attrs.list){
866
              // safari false positive's on datalist: webk.it/74252
867
              // see also github.com/Modernizr/Modernizr/issues/146
868
              attrs.list = !!(document.createElement('datalist') && window.HTMLDataListElement);
869
            }
870
            return attrs;
871
        })('autocomplete autofocus list placeholder max min multiple pattern required step'.split(' '));
872
        /*>>input*/
873

874
        /*>>inputtypes*/
875
        // Run through HTML5's new input types to see if the UA understands any.
876
        //   This is put behind the tests runloop because it doesn't return a
877
        //   true/false like all the other tests; instead, it returns an object
878
        //   containing each input type with its corresponding true/false value
879

880
        // Big thanks to @miketaylr for the html5 forms expertise. miketaylr.com/
881
        Modernizr['inputtypes'] = (function(props) {
882

883
            for ( var i = 0, bool, inputElemType, defaultView, len = props.length; i < len; i++ ) {
884

885
                inputElem.setAttribute('type', inputElemType = props[i]);
886
                bool = inputElem.type !== 'text';
887

888
                // We first check to see if the type we give it sticks..
889
                // If the type does, we feed it a textual value, which shouldn't be valid.
890
                // If the value doesn't stick, we know there's input sanitization which infers a custom UI
891
                if ( bool ) {
892

893
                    inputElem.value         = smile;
894
                    inputElem.style.cssText = 'position:absolute;visibility:hidden;';
895

896
                    if ( /^range$/.test(inputElemType) && inputElem.style.WebkitAppearance !== undefined ) {
897

898
                      docElement.appendChild(inputElem);
899
                      defaultView = document.defaultView;
900

901
                      // Safari 2-4 allows the smiley as a value, despite making a slider
902
                      bool =  defaultView.getComputedStyle &&
903
                              defaultView.getComputedStyle(inputElem, null).WebkitAppearance !== 'textfield' &&
904
                              // Mobile android web browser has false positive, so must
905
                              // check the height to see if the widget is actually there.
906
                              (inputElem.offsetHeight !== 0);
907

908
                      docElement.removeChild(inputElem);
909

910
                    } else if ( /^(search|tel)$/.test(inputElemType) ){
911
                      // Spec doesn't define any special parsing or detectable UI
912
                      //   behaviors so we pass these through as true
913

914
                      // Interestingly, opera fails the earlier test, so it doesn't
915
                      //  even make it here.
916

917
                    } else if ( /^(url|email)$/.test(inputElemType) ) {
918
                      // Real url and email support comes with prebaked validation.
919
                      bool = inputElem.checkValidity && inputElem.checkValidity() === false;
920

921
                    } else {
922
                      // If the upgraded input compontent rejects the :) text, we got a winner
923
                      bool = inputElem.value != smile;
924
                    }
925
                }
926

927
                inputs[ props[i] ] = !!bool;
928
            }
929
            return inputs;
930
        })('search tel url email datetime date month week time datetime-local number range color'.split(' '));
931
        /*>>inputtypes*/
932
    }
933
    /*>>webforms*/
934

935

936
    // End of test definitions
937
    // -----------------------
938

939

940

941
    // Run through all tests and detect their support in the current UA.
942
    // todo: hypothetically we could be doing an array of tests and use a basic loop here.
943
    for ( var feature in tests ) {
944
        if ( hasOwnProp(tests, feature) ) {
945
            // run the test, throw the return value into the Modernizr,
946
            //   then based on that boolean, define an appropriate className
947
            //   and push it into an array of classes we'll join later.
948
            featureName  = feature.toLowerCase();
949
            Modernizr[featureName] = tests[feature]();
950

951
            classes.push((Modernizr[featureName] ? '' : 'no-') + featureName);
952
        }
953
    }
954

955
    /*>>webforms*/
956
    // input tests need to run.
957
    Modernizr.input || webforms();
958
    /*>>webforms*/
959

960

961
    /**
962
     * addTest allows the user to define their own feature tests
963
     * the result will be added onto the Modernizr object,
964
     * as well as an appropriate className set on the html element
965
     *
966
     * @param feature - String naming the feature
967
     * @param test - Function returning true if feature is supported, false if not
968
     */
969
     Modernizr.addTest = function ( feature, test ) {
970
       if ( typeof feature == 'object' ) {
971
         for ( var key in feature ) {
972
           if ( hasOwnProp( feature, key ) ) {
973
             Modernizr.addTest( key, feature[ key ] );
974
           }
975
         }
976
       } else {
977

978
         feature = feature.toLowerCase();
979

980
         if ( Modernizr[feature] !== undefined ) {
981
           // we're going to quit if you're trying to overwrite an existing test
982
           // if we were to allow it, we'd do this:
983
           //   var re = new RegExp("\\b(no-)?" + feature + "\\b");
984
           //   docElement.className = docElement.className.replace( re, '' );
985
           // but, no rly, stuff 'em.
986
           return Modernizr;
987
         }
988

989
         test = typeof test == 'function' ? test() : test;
990

991
         if (typeof enableClasses !== "undefined" && enableClasses) {
992
           docElement.className += ' ' + (test ? '' : 'no-') + feature;
993
         }
994
         Modernizr[feature] = test;
995

996
       }
997

998
       return Modernizr; // allow chaining.
999
     };
1000

1001

1002
    // Reset modElem.cssText to nothing to reduce memory footprint.
1003
    setCss('');
1004
    modElem = inputElem = null;
1005

1006
    /*>>shiv*/
1007
    /**
1008
     * @preserve HTML5 Shiv prev3.7.1 | @afarkas @jdalton @jon_neal @rem | MIT/GPL2 Licensed
1009
     */
1010
    ;(function(window, document) {
1011
        /*jshint evil:true */
1012
        /** version */
1013
        var version = '3.7.0';
1014

1015
        /** Preset options */
1016
        var options = window.html5 || {};
1017

1018
        /** Used to skip problem elements */
1019
        var reSkip = /^<|^(?:button|map|select|textarea|object|iframe|option|optgroup)$/i;
1020

1021
        /** Not all elements can be cloned in IE **/
1022
        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;
1023

1024
        /** Detect whether the browser supports default html5 styles */
1025
        var supportsHtml5Styles;
1026

1027
        /** Name of the expando, to work with multiple documents or to re-shiv one document */
1028
        var expando = '_html5shiv';
1029

1030
        /** The id for the the documents expando */
1031
        var expanID = 0;
1032

1033
        /** Cached data for each document */
1034
        var expandoData = {};
1035

1036
        /** Detect whether the browser supports unknown elements */
1037
        var supportsUnknownElements;
1038

1039
        (function() {
1040
          try {
1041
            var a = document.createElement('a');
1042
            a.innerHTML = '<xyz></xyz>';
1043
            //if the hidden property is implemented we can assume, that the browser supports basic HTML5 Styles
1044
            supportsHtml5Styles = ('hidden' in a);
1045

1046
            supportsUnknownElements = a.childNodes.length == 1 || (function() {
1047
              // assign a false positive if unable to shiv
1048
              (document.createElement)('a');
1049
              var frag = document.createDocumentFragment();
1050
              return (
1051
                typeof frag.cloneNode == 'undefined' ||
1052
                typeof frag.createDocumentFragment == 'undefined' ||
1053
                typeof frag.createElement == 'undefined'
1054
              );
1055
            }());
1056
          } catch(e) {
1057
            // assign a false positive if detection fails => unable to shiv
1058
            supportsHtml5Styles = true;
1059
            supportsUnknownElements = true;
1060
          }
1061

1062
        }());
1063

1064
        /*--------------------------------------------------------------------------*/
1065

1066
        /**
1067
         * Creates a style sheet with the given CSS text and adds it to the document.
1068
         * @private
1069
         * @param {Document} ownerDocument The document.
1070
         * @param {String} cssText The CSS text.
1071
         * @returns {StyleSheet} The style element.
1072
         */
1073
        function addStyleSheet(ownerDocument, cssText) {
1074
          var p = ownerDocument.createElement('p'),
1075
          parent = ownerDocument.getElementsByTagName('head')[0] || ownerDocument.documentElement;
1076

1077
          p.innerHTML = 'x<style>' + cssText + '</style>';
1078
          return parent.insertBefore(p.lastChild, parent.firstChild);
1079
        }
1080

1081
        /**
1082
         * Returns the value of `html5.elements` as an array.
1083
         * @private
1084
         * @returns {Array} An array of shived element node names.
1085
         */
1086
        function getElements() {
1087
          var elements = html5.elements;
1088
          return typeof elements == 'string' ? elements.split(' ') : elements;
1089
        }
1090

1091
        /**
1092
         * Returns the data associated to the given document
1093
         * @private
1094
         * @param {Document} ownerDocument The document.
1095
         * @returns {Object} An object of data.
1096
         */
1097
        function getExpandoData(ownerDocument) {
1098
          var data = expandoData[ownerDocument[expando]];
1099
          if (!data) {
1100
            data = {};
1101
            expanID++;
1102
            ownerDocument[expando] = expanID;
1103
            expandoData[expanID] = data;
1104
          }
1105
          return data;
1106
        }
1107

1108
        /**
1109
         * returns a shived element for the given nodeName and document
1110
         * @memberOf html5
1111
         * @param {String} nodeName name of the element
1112
         * @param {Document} ownerDocument The context document.
1113
         * @returns {Object} The shived element.
1114
         */
1115
        function createElement(nodeName, ownerDocument, data){
1116
          if (!ownerDocument) {
1117
            ownerDocument = document;
1118
          }
1119
          if(supportsUnknownElements){
1120
            return ownerDocument.createElement(nodeName);
1121
          }
1122
          if (!data) {
1123
            data = getExpandoData(ownerDocument);
1124
          }
1125
          var node;
1126

1127
          if (data.cache[nodeName]) {
1128
            node = data.cache[nodeName].cloneNode();
1129
          } else if (saveClones.test(nodeName)) {
1130
            node = (data.cache[nodeName] = data.createElem(nodeName)).cloneNode();
1131
          } else {
1132
            node = data.createElem(nodeName);
1133
          }
1134

1135
          // Avoid adding some elements to fragments in IE < 9 because
1136
          // * Attributes like `name` or `type` cannot be set/changed once an element
1137
          //   is inserted into a document/fragment
1138
          // * Link elements with `src` attributes that are inaccessible, as with
1139
          //   a 403 response, will cause the tab/window to crash
1140
          // * Script elements appended to fragments will execute when their `src`
1141
          //   or `text` property is set
1142
          return node.canHaveChildren && !reSkip.test(nodeName) && !node.tagUrn ? data.frag.appendChild(node) : node;
1143
        }
1144

1145
        /**
1146
         * returns a shived DocumentFragment for the given document
1147
         * @memberOf html5
1148
         * @param {Document} ownerDocument The context document.
1149
         * @returns {Object} The shived DocumentFragment.
1150
         */
1151
        function createDocumentFragment(ownerDocument, data){
1152
          if (!ownerDocument) {
1153
            ownerDocument = document;
1154
          }
1155
          if(supportsUnknownElements){
1156
            return ownerDocument.createDocumentFragment();
1157
          }
1158
          data = data || getExpandoData(ownerDocument);
1159
          var clone = data.frag.cloneNode(),
1160
          i = 0,
1161
          elems = getElements(),
1162
          l = elems.length;
1163
          for(;i<l;i++){
1164
            clone.createElement(elems[i]);
1165
          }
1166
          return clone;
1167
        }
1168

1169
        /**
1170
         * Shivs the `createElement` and `createDocumentFragment` methods of the document.
1171
         * @private
1172
         * @param {Document|DocumentFragment} ownerDocument The document.
1173
         * @param {Object} data of the document.
1174
         */
1175
        function shivMethods(ownerDocument, data) {
1176
          if (!data.cache) {
1177
            data.cache = {};
1178
            data.createElem = ownerDocument.createElement;
1179
            data.createFrag = ownerDocument.createDocumentFragment;
1180
            data.frag = data.createFrag();
1181
          }
1182

1183

1184
          ownerDocument.createElement = function(nodeName) {
1185
            //abort shiv
1186
            if (!html5.shivMethods) {
1187
              return data.createElem(nodeName);
1188
            }
1189
            return createElement(nodeName, ownerDocument, data);
1190
          };
1191

1192
          ownerDocument.createDocumentFragment = Function('h,f', 'return function(){' +
1193
                                                          'var n=f.cloneNode(),c=n.createElement;' +
1194
                                                          'h.shivMethods&&(' +
1195
                                                          // unroll the `createElement` calls
1196
                                                          getElements().join().replace(/[\w\-]+/g, function(nodeName) {
1197
            data.createElem(nodeName);
1198
            data.frag.createElement(nodeName);
1199
            return 'c("' + nodeName + '")';
1200
          }) +
1201
            ');return n}'
1202
                                                         )(html5, data.frag);
1203
        }
1204

1205
        /*--------------------------------------------------------------------------*/
1206

1207
        /**
1208
         * Shivs the given document.
1209
         * @memberOf html5
1210
         * @param {Document} ownerDocument The document to shiv.
1211
         * @returns {Document} The shived document.
1212
         */
1213
        function shivDocument(ownerDocument) {
1214
          if (!ownerDocument) {
1215
            ownerDocument = document;
1216
          }
1217
          var data = getExpandoData(ownerDocument);
1218

1219
          if (html5.shivCSS && !supportsHtml5Styles && !data.hasCSS) {
1220
            data.hasCSS = !!addStyleSheet(ownerDocument,
1221
                                          // corrects block display not defined in IE6/7/8/9
1222
                                          'article,aside,dialog,figcaption,figure,footer,header,hgroup,main,nav,section{display:block}' +
1223
                                            // adds styling not present in IE6/7/8/9
1224
                                            'mark{background:#FF0;color:#000}' +
1225
                                            // hides non-rendered elements
1226
                                            'template{display:none}'
1227
                                         );
1228
          }
1229
          if (!supportsUnknownElements) {
1230
            shivMethods(ownerDocument, data);
1231
          }
1232
          return ownerDocument;
1233
        }
1234

1235
        /*--------------------------------------------------------------------------*/
1236

1237
        /**
1238
         * The `html5` object is exposed so that more elements can be shived and
1239
         * existing shiving can be detected on iframes.
1240
         * @type Object
1241
         * @example
1242
         *
1243
         * // options can be changed before the script is included
1244
         * html5 = { 'elements': 'mark section', 'shivCSS': false, 'shivMethods': false };
1245
         */
1246
        var html5 = {
1247

1248
          /**
1249
           * An array or space separated string of node names of the elements to shiv.
1250
           * @memberOf html5
1251
           * @type Array|String
1252
           */
1253
          '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',
1254

1255
          /**
1256
           * current version of html5shiv
1257
           */
1258
          'version': version,
1259

1260
          /**
1261
           * A flag to indicate that the HTML5 style sheet should be inserted.
1262
           * @memberOf html5
1263
           * @type Boolean
1264
           */
1265
          'shivCSS': (options.shivCSS !== false),
1266

1267
          /**
1268
           * Is equal to true if a browser supports creating unknown/HTML5 elements
1269
           * @memberOf html5
1270
           * @type boolean
1271
           */
1272
          'supportsUnknownElements': supportsUnknownElements,
1273

1274
          /**
1275
           * A flag to indicate that the document's `createElement` and `createDocumentFragment`
1276
           * methods should be overwritten.
1277
           * @memberOf html5
1278
           * @type Boolean
1279
           */
1280
          'shivMethods': (options.shivMethods !== false),
1281

1282
          /**
1283
           * A string to describe the type of `html5` object ("default" or "default print").
1284
           * @memberOf html5
1285
           * @type String
1286
           */
1287
          'type': 'default',
1288

1289
          // shivs the document according to the specified `html5` object options
1290
          'shivDocument': shivDocument,
1291

1292
          //creates a shived element
1293
          createElement: createElement,
1294

1295
          //creates a shived documentFragment
1296
          createDocumentFragment: createDocumentFragment
1297
        };
1298

1299
        /*--------------------------------------------------------------------------*/
1300

1301
        // expose html5
1302
        window.html5 = html5;
1303

1304
        // shiv the document
1305
        shivDocument(document);
1306

1307
    }(this, document));
1308
    /*>>shiv*/
1309

1310
    // Assign private properties to the return object with prefix
1311
    Modernizr._version      = version;
1312

1313
    // expose these for the plugin API. Look in the source for how to join() them against your input
1314
    /*>>prefixes*/
1315
    Modernizr._prefixes     = prefixes;
1316
    /*>>prefixes*/
1317
    /*>>domprefixes*/
1318
    Modernizr._domPrefixes  = domPrefixes;
1319
    Modernizr._cssomPrefixes  = cssomPrefixes;
1320
    /*>>domprefixes*/
1321

1322
    /*>>mq*/
1323
    // Modernizr.mq tests a given media query, live against the current state of the window
1324
    // A few important notes:
1325
    //   * If a browser does not support media queries at all (eg. oldIE) the mq() will always return false
1326
    //   * A max-width or orientation query will be evaluated against the current state, which may change later.
1327
    //   * You must specify values. Eg. If you are testing support for the min-width media query use:
1328
    //       Modernizr.mq('(min-width:0)')
1329
    // usage:
1330
    // Modernizr.mq('only screen and (max-width:768)')
1331
    Modernizr.mq            = testMediaQuery;
1332
    /*>>mq*/
1333

1334
    /*>>hasevent*/
1335
    // Modernizr.hasEvent() detects support for a given event, with an optional element to test on
1336
    // Modernizr.hasEvent('gesturestart', elem)
1337
    Modernizr.hasEvent      = isEventSupported;
1338
    /*>>hasevent*/
1339

1340
    /*>>testprop*/
1341
    // Modernizr.testProp() investigates whether a given style property is recognized
1342
    // Note that the property names must be provided in the camelCase variant.
1343
    // Modernizr.testProp('pointerEvents')
1344
    Modernizr.testProp      = function(prop){
1345
        return testProps([prop]);
1346
    };
1347
    /*>>testprop*/
1348

1349
    /*>>testallprops*/
1350
    // Modernizr.testAllProps() investigates whether a given style property,
1351
    //   or any of its vendor-prefixed variants, is recognized
1352
    // Note that the property names must be provided in the camelCase variant.
1353
    // Modernizr.testAllProps('boxSizing')
1354
    Modernizr.testAllProps  = testPropsAll;
1355
    /*>>testallprops*/
1356

1357

1358
    /*>>teststyles*/
1359
    // Modernizr.testStyles() allows you to add custom styles to the document and test an element afterwards
1360
    // Modernizr.testStyles('#modernizr { position:absolute }', function(elem, rule){ ... })
1361
    Modernizr.testStyles    = injectElementWithStyles;
1362
    /*>>teststyles*/
1363

1364

1365
    /*>>prefixed*/
1366
    // Modernizr.prefixed() returns the prefixed or nonprefixed property name variant of your input
1367
    // Modernizr.prefixed('boxSizing') // 'MozBoxSizing'
1368

1369
    // Properties must be passed as dom-style camelcase, rather than `box-sizing` hypentated style.
1370
    // Return values will also be the camelCase variant, if you need to translate that to hypenated style use:
1371
    //
1372
    //     str.replace(/([A-Z])/g, function(str,m1){ return '-' + m1.toLowerCase(); }).replace(/^ms-/,'-ms-');
1373

1374
    // If you're trying to ascertain which transition end event to bind to, you might do something like...
1375
    //
1376
    //     var transEndEventNames = {
1377
    //       'WebkitTransition' : 'webkitTransitionEnd',
1378
    //       'MozTransition'    : 'transitionend',
1379
    //       'OTransition'      : 'oTransitionEnd',
1380
    //       'msTransition'     : 'MSTransitionEnd',
1381
    //       'transition'       : 'transitionend'
1382
    //     },
1383
    //     transEndEventName = transEndEventNames[ Modernizr.prefixed('transition') ];
1384

1385
    Modernizr.prefixed      = function(prop, obj, elem){
1386
      if(!obj) {
1387
        return testPropsAll(prop, 'pfx');
1388
      } else {
1389
        // Testing DOM property e.g. Modernizr.prefixed('requestAnimationFrame', window) // 'mozRequestAnimationFrame'
1390
        return testPropsAll(prop, obj, elem);
1391
      }
1392
    };
1393
    /*>>prefixed*/
1394

1395

1396
    /*>>cssclasses*/
1397
    // Remove "no-js" class from <html> element, if it exists:
1398
    docElement.className = docElement.className.replace(/(^|\s)no-js(\s|$)/, '$1$2') +
1399

1400
                            // Add the new classes to the <html> element.
1401
                            (enableClasses ? ' js ' + classes.join(' ') : '');
1402
    /*>>cssclasses*/
1403

1404
    return Modernizr;
1405

1406
})(this, this.document);
1407

1408
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