CSS Select: Country Rest API

In this example below you will see how to do a CSS Select: Country Rest API with some HTML / CSS and Javascript

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This awesome code was written by ftabor, you can see more from this user in the personal repository.
You can find the original code on Codepen.io
Copyright ftabor ©

Technologies

  • HTML
  • CSS
  • JavaScript
<!DOCTYPE html>
<html lang="en" >

<head>
  <meta charset="UTF-8">
  <title>CSS Select: Country Rest API </title>
  
  
  <link rel='stylesheet prefetch' href='https://cdnjs.cloudflare.com/ajax/libs/meyer-reset/2.0/reset.css'>
<link rel='stylesheet prefetch' href='https://fonts.googleapis.com/css?family=Raleway'>

      <link rel="stylesheet" href="css/style.css">

  
</head>

<body>

  
<h1>Country Information Grabber</h1>

</br>
<a href="#" class="btn btn-green" id="get-regions">Get regions!</a>

</br></br>

   <form>
        <label for="select">Region</label>
        <div class="form-select">
          <select id="region-select" name="city">
            <option value="default">-- Select a Region --</option>
          </select>
        </div>
     
       <label for="select">Country</label>
        <div class="form-select">
          <select id="country-select" name="city">
            <option value="default">-- Select a Country --</option>
          </select>
        </div>
    </form>



<div id="results"><p></p></div>
<p>This is an experimentation of the<a href="https://restcountries.eu/"> REST Country API Service</a></p>
  <script src='https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js'></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/soundmanager2/2.97a.20150601/script/soundmanager2-nodebug-jsmin.js'></script>

  

    <script  src="js/index.js"></script>




</body>

</html>

/*Downloaded from https://www.codeseek.co/ftabor/css-select-country-rest-api-OyEQJr */
@charset "UTF-8";
/* Colors */
/* f2fbff */
/* Fonts */
/* Button */
* {
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: -webkit-linear-gradient(top, #f5fff2 0%, #fff 75%) no-repeat;
  background: -moz-linear-gradient(top, #f5fff2 0%, #fff 75%) no-repeat;
  background: -ms-linear-gradient(top, #f5fff2 0%, #fff 75%) no-repeat;
  background: linear, to bottom, #f5fff2 0%, #fff 75% no-repeat;
  font-family: "Helvetica Neue", "Helvetica", Arial, sans-serif;
  color: #70766f;
  font-weight: 300;
  padding: 0 5%;
}

h1 {
  font-weight: 100;
  font-size: 5em;
  color: #30b744;
  text-shadow: 1px 1px 0 #fff;
  padding: 10px;
}

p {
  font-size: 1.25em;
  z-index: 1;
  position: relative;
  padding: 10px;
}

a.social {
  display: inline-block;
  color: #30b744;
  margin-right: 1em;
}

.btn {
  color: white;
  text-decoration: none;
  padding: 10px;
  border-radius: 3px;
  font-size: 2em;
}

.btn-green {
  background: #2ecc71;
}
.btn-green:hover {
  background: #26ab5f;
  transition: all 0.3s ease;
}
.btn-green:active {
  background: #176437;
}

form label {
  font-weight: 600;
  display: inline-block;
  margin: 0 0 0.5em 0;
  padding: 10px;
}
form .form-select {
  position: relative;
  width: 300px;
  z-index: 10;
  padding: 10px;
}
form .form-select:after {
  content: '▸';
  position: absolute;
  top: 0;
  right: 1em;
  z-index: 1;
  color: #8a9487;
  line-height: 48px;
  font-size: 1em;
}
form .form-select .select {
  width: 300px;
  height: 48px;
  line-height: 48px;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  padding: 0 1em;
  border-radius: 4px;
  border: 1px solid #d9dcd8;
  background: -webkit-linear-gradient(bottom, #f5fff2 -20%, #fff 110%) no-repeat;
  background: -moz-linear-gradient(bottom, #f5fff2 -20%, #fff 110%) no-repeat;
  background: -ms-linear-gradient(bottom, #f5fff2 -20%, #fff 110%) no-repeat;
  background: linear, to top, #f5fff2 -20%, #fff 110% no-repeat;
  color: #8a9487;
  cursor: pointer;
  transition: all 0.4s ease;
}
form .form-select .select:hover, form .form-select .select:focus {
  border-color: #9ce5a6;
  box-shadow: 0 0 5px #b0eab8;
  outline: 0;
}
form .form-select .select-options {
  display: none;
  position: absolute;
  z-index: 10;
  top: 0;
  left: 300px;
  width: 300px;
  list-style-type: none;
  margin: 0 0 0 1em;
  padding: 0;
  border-radius: 4px;
  border: 1px solid #bfc4bd;
  box-shadow: 0 0 5px #d8f5dc;
  background: -webkit-linear-gradient(bottom, #f5fff2 0%, #fff 110%) no-repeat;
  background: -moz-linear-gradient(bottom, #f5fff2 0%, #fff 110%) no-repeat;
  background: -ms-linear-gradient(bottom, #f5fff2 0%, #fff 110%) no-repeat;
  background: linear, to top, #f5fff2 0%, #fff 110% no-repeat;
  color: #8a9487;
}
form .form-select .select-options li {
  padding: 0.5em 1em;
  cursor: pointer;
  text-shadow: 1px 0px 0 #fff;
}
form .form-select .select-options li:hover {
  color: #fff;
  background: #5fd570;
  text-shadow: 1px 0px 0 #2ba33c;
}
form .form-select .select-options:before {
  content: '◂';
  position: absolute;
  top: -3px;
  left: -15px;
  font-size: 38px;
}

.hidden {
  display: none;
}


/*Downloaded from https://www.codeseek.co/ftabor/css-select-country-rest-api-OyEQJr */
// Open python server python -m SimpleHTTPServer 9000
// Create an AJAX request (AJAX built-in in Javascript)

function ajaxRequest(method, url){
  var request = new XMLHttpRequest();
  request.open(method, url);
  request.send();
  return request;
}
function successfulRequest (request){
  return (request.readyState === 4 && request.statusText == 'OK')
}

function getRegions(event) {
  var regions = [];

  var request = ajaxRequest('GET', 'https://restcountries.eu/rest/v1/all');

// Remember JS is synchronous but we need to wait until the request is fully processed in order to do something
  request.onreadystatechange = function() {
    // console.log(request); => Loads of various request objects, all looking similar (a hash) with long JSON objects, but not all of them have ready-state 4
    if (successfulRequest(request)) {

      regionSelect.innerHTML = ''
      // regionSelect.innerHTML ='<option value="default">-- Select your region --</option' => was much quicker than creating the optionDefault below...

      var response = JSON.parse(request.response)  // is a long JSON string => parse it to get an Array: each array[i] lists infos on a country -> we need the region, and we store it in the regions array

      for (var i=0; i < response.length; i++) {
        // need to avoid duplicate regions
        if (regions.indexOf(response[i].region) === -1  && response[i].region.length > 0) {
          regions.push(response[i].region);
          // now add it to the dropdowm menu: "select" made of "options"
          var optionRegion = document.createElement('option');
          optionRegion.setAttribute('value', response[i].region);
          optionRegion.innerHTML = response[i].region;
          regionSelect.appendChild(optionRegion);
        } 
      }
      // just add a "select region" to the dropdown
      var optionDefault = document.createElement('option');
      optionDefault.setAttribute('value', 'default');
      optionDefault.innerHTML = '-- Select your region --';
      regionSelect.insertBefore(optionDefault, regionSelect.firstChild);
    }
  }
}

function getCountries(event) {
  var regionName = this.value;

  var request = ajaxRequest('GET', "https://restcountries.eu/rest/v1/region/"+ regionName);

  request.onreadystatechange = function() {

    if (successfulRequest(request)) {
      countrySelect.innerHTML = '';
      var response = JSON.parse(request.response);
      
      for (var i=0; i < response.length; i++) {
        var optionCountry = document.createElement('option');
        optionCountry.setAttribute('value', response[i].name);
        optionCountry.innerHTML = response[i].name;
        countrySelect.appendChild(optionCountry);
      }
    }
      var optionDefault = document.createElement('option');
      optionDefault.setAttribute('value', 'default');
      optionDefault.innerHTML = '-- Select your country --';
      countrySelect.insertBefore(optionDefault, countrySelect.firstChild);
  }
}

function getCountryData() {
  countryName = this.value;
  var request = ajaxRequest('GET', 'https://restcountries.eu/rest/v1/name/' + countryName);

  request.onreadystatechange = function() {
    if (successfulRequest(request)) {
      results.innerHTML = '';
      var response = JSON.parse(request.response);
      results.innerHTML = response[0].name + ' ' + response[0].population;
    }
  }
}

var getRegionsButton;
var regionSelect;
var countrySelect;

document.addEventListener('DOMContentLoaded', function() {
  console.log('heyyyy');

// Define our variables
  getRegionsButton = document.getElementById('get-regions');
  regionSelect = document.getElementById('region-select');
  countrySelect = document.getElementById('country-select');
  results = document.getElementById('results');

// Add Event Listeners
  getRegionsButton.addEventListener('click', getRegions);
  regionSelect.addEventListener('change', getCountries);
  countrySelect.addEventListener('change', getCountryData);

});

function getRegions(event) {
  var regions = [];
// Create an AJAX request (AJAX shortcut in jQuery)
  $.ajax({
    type: 'GET',
    url: 'https://restcountries.eu/rest/v1/all'
  }).done(function(response) {
    // .done is like the "onreadystatechange thing" + check successful request
    // jQ already does JSON.parse on response so it is an objet => JQUERY OBJECTS ARE ARRAYS!!
    $('#region-select').empty();
    $('#region-select').append('<option value="default"> -- Select region -- </option>')

    $.each(response, function(index, item) {
      if ($.inArray(item.region, regions) == -1 && item.region.length >=1) {
        regions.push(item.region);
        $('#region-select').append('<option value="' + item.region + '">' + item.region + '</option>')
      }
    })
  })
}

function getCountries(event) {
  var regionName = $(this)[0].value // remember jQuery returns an Array !
  $.ajax({
    type: 'GET',
    url: "https://restcountries.eu/rest/v1/region/"+ regionName
  }).done(function(response) {
    $('#country-select').empty();
    $('#country-select').append('<option value="default"> -- Select country -- </option>')

    $.each(response, function(index, item ) {
      $('#country-select').append( '<option value="' + item.name + '">' + item.name + '</option>')
    })
  })
}

function getCountryData() {
  var countryName = $(this)[0].value;
  $.ajax({
    type: 'GET',
    url: 'https://restcountries.eu/rest/v1/name/' + countryName
  }).done(function() {
    $('#results').empty();
    $('#results').append("<h4>" + countryName + "</h4>");
    $('#results').append("<ul id='description'></ul>");
  })
}

$(document).ready(function(){
  console.log('heyyyy');
  $('#get-regions').on('click', getRegions);
  $('#region-select').on('change', getCountries);
  $('#country-select').on('change', getCountryData)
})

/*!
 * jQuery JavaScript Library v2.1.4
 * https://jquery.com/
 *
 * Includes Sizzle.js
 * http://sizzlejs.com/
 *
 * Copyright 2005, 2014 jQuery Foundation, Inc. and other contributors
 * Released under the MIT license
 * http://jquery.org/license
 *
 * Date: 2015-04-28T16:01Z
 */

(function( global, factory ) {

  if ( typeof module === "object" && typeof module.exports === "object" ) {
    // For CommonJS and CommonJS-like environments where a proper `window`
    // is present, execute the factory and get jQuery.
    // For environments that do not have a `window` with a `document`
    // (such as Node.js), expose a factory as module.exports.
    // This accentuates the need for the creation of a real `window`.
    // e.g. var jQuery = require("jquery")(window);
    // See ticket #14549 for more info.
    module.exports = global.document ?
      factory( global, true ) :
      function( w ) {
        if ( !w.document ) {
          throw new Error( "jQuery requires a window with a document" );
        }
        return factory( w );
      };
  } else {
    factory( global );
  }

// Pass this if window is not defined yet
}(typeof window !== "undefined" ? window : this, function( window, noGlobal ) {

// Support: Firefox 18+
// Can't be in strict mode, several libs including ASP.NET trace
// the stack via arguments.caller.callee and Firefox dies if
// you try to trace through "use strict" call chains. (#13335)
//

var arr = [];

var slice = arr.slice;

var concat = arr.concat;

var push = arr.push;

var indexOf = arr.indexOf;

var class2type = {};

var toString = class2type.toString;

var hasOwn = class2type.hasOwnProperty;

var support = {};



var
  // Use the correct document accordingly with window argument (sandbox)
  document = window.document,

  version = "2.1.4",

  // Define a local copy of jQuery
  jQuery = function( selector, context ) {
    // The jQuery object is actually just the init constructor 'enhanced'
    // Need init if jQuery is called (just allow error to be thrown if not included)
    return new jQuery.fn.init( selector, context );
  },

  // Support: Android<4.1
  // Make sure we trim BOM and NBSP
  rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,

  // Matches dashed string for camelizing
  rmsPrefix = /^-ms-/,
  rdashAlpha = /-([\da-z])/gi,

  // Used by jQuery.camelCase as callback to replace()
  fcamelCase = function( all, letter ) {
    return letter.toUpperCase();
  };

jQuery.fn = jQuery.prototype = {
  // The current version of jQuery being used
  jquery: version,

  constructor: jQuery,

  // Start with an empty selector
  selector: "",

  // The default length of a jQuery object is 0
  length: 0,

  toArray: function() {
    return slice.call( this );
  },

  // Get the Nth element in the matched element set OR
  // Get the whole matched element set as a clean array
  get: function( num ) {
    return num != null ?

      // Return just the one element from the set
      ( num < 0 ? this[ num + this.length ] : this[ num ] ) :

      // Return all the elements in a clean array
      slice.call( this );
  },

  // Take an array of elements and push it onto the stack
  // (returning the new matched element set)
  pushStack: function( elems ) {

    // Build a new jQuery matched element set
    var ret = jQuery.merge( this.constructor(), elems );

    // Add the old object onto the stack (as a reference)
    ret.prevObject = this;
    ret.context = this.context;

    // Return the newly-formed element set
    return ret;
  },

  // Execute a callback for every element in the matched set.
  // (You can seed the arguments with an array of args, but this is
  // only used internally.)
  each: function( callback, args ) {
    return jQuery.each( this, callback, args );
  },

  map: function( callback ) {
    return this.pushStack( jQuery.map(this, function( elem, i ) {
      return callback.call( elem, i, elem );
    }));
  },

  slice: function() {
    return this.pushStack( slice.apply( this, arguments ) );
  },

  first: function() {
    return this.eq( 0 );
  },

  last: function() {
    return this.eq( -1 );
  },

  eq: function( i ) {
    var len = this.length,
      j = +i + ( i < 0 ? len : 0 );
    return this.pushStack( j >= 0 && j < len ? [ this[j] ] : [] );
  },

  end: function() {
    return this.prevObject || this.constructor(null);
  },

  // For internal use only.
  // Behaves like an Array's method, not like a jQuery method.
  push: push,
  sort: arr.sort,
  splice: arr.splice
};

jQuery.extend = jQuery.fn.extend = function() {
  var options, name, src, copy, copyIsArray, clone,
    target = arguments[0] || {},
    i = 1,
    length = arguments.length,
    deep = false;

  // Handle a deep copy situation
  if ( typeof target === "boolean" ) {
    deep = target;

    // Skip the boolean and the target
    target = arguments[ i ] || {};
    i++;
  }

  // Handle case when target is a string or something (possible in deep copy)
  if ( typeof target !== "object" && !jQuery.isFunction(target) ) {
    target = {};
  }

  // Extend jQuery itself if only one argument is passed
  if ( i === length ) {
    target = this;
    i--;
  }

  for ( ; i < length; i++ ) {
    // Only deal with non-null/undefined values
    if ( (options = arguments[ i ]) != null ) {
      // Extend the base object
      for ( name in options ) {
        src = target[ name ];
        copy = options[ name ];

        // Prevent never-ending loop
        if ( target === copy ) {
          continue;
        }

        // Recurse if we're merging plain objects or arrays
        if ( deep && copy && ( jQuery.isPlainObject(copy) || (copyIsArray = jQuery.isArray(copy)) ) ) {
          if ( copyIsArray ) {
            copyIsArray = false;
            clone = src && jQuery.isArray(src) ? src : [];

          } else {
            clone = src && jQuery.isPlainObject(src) ? src : {};
          }

          // Never move original objects, clone them
          target[ name ] = jQuery.extend( deep, clone, copy );

        // Don't bring in undefined values
        } else if ( copy !== undefined ) {
          target[ name ] = copy;
        }
      }
    }
  }

  // Return the modified object
  return target;
};

jQuery.extend({
  // Unique for each copy of jQuery on the page
  expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ),

  // Assume jQuery is ready without the ready module
  isReady: true,

  error: function( msg ) {
    throw new Error( msg );
  },

  noop: function() {},

  isFunction: function( obj ) {
    return jQuery.type(obj) === "function";
  },

  isArray: Array.isArray,

  isWindow: function( obj ) {
    return obj != null && obj === obj.window;
  },

  isNumeric: function( obj ) {
    // parseFloat NaNs numeric-cast false positives (null|true|false|"")
    // ...but misinterprets leading-number strings, particularly hex literals ("0x...")
    // subtraction forces infinities to NaN
    // adding 1 corrects loss of precision from parseFloat (#15100)
    return !jQuery.isArray( obj ) && (obj - parseFloat( obj ) + 1) >= 0;
  },

  isPlainObject: function( obj ) {
    // Not plain objects:
    // - Any object or value whose internal [[Class]] property is not "[object Object]"
    // - DOM nodes
    // - window
    if ( jQuery.type( obj ) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) {
      return false;
    }

    if ( obj.constructor &&
        !hasOwn.call( obj.constructor.prototype, "isPrototypeOf" ) ) {
      return false;
    }

    // If the function hasn't returned already, we're confident that
    // |obj| is a plain object, created by {} or constructed with new Object
    return true;
  },

  isEmptyObject: function( obj ) {
    var name;
    for ( name in obj ) {
      return false;
    }
    return true;
  },

  type: function( obj ) {
    if ( obj == null ) {
      return obj + "";
    }
    // Support: Android<4.0, iOS<6 (functionish RegExp)
    return typeof obj === "object" || typeof obj === "function" ?
      class2type[ toString.call(obj) ] || "object" :
      typeof obj;
  },

  // Evaluates a script in a global context
  globalEval: function( code ) {
    var script,
      indirect = eval;

    code = jQuery.trim( code );

    if ( code ) {
      // If the code includes a valid, prologue position
      // strict mode pragma, execute code by injecting a
      // script tag into the document.
      if ( code.indexOf("use strict") === 1 ) {
        script = document.createElement("script");
        script.text = code;
        document.head.appendChild( script ).parentNode.removeChild( script );
      } else {
      // Otherwise, avoid the DOM node creation, insertion
      // and removal by using an indirect global eval
        indirect( code );
      }
    }
  },

  // Convert dashed to camelCase; used by the css and data modules
  // Support: IE9-11+
  // Microsoft forgot to hump their vendor prefix (#9572)
  camelCase: function( string ) {
    return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
  },

  nodeName: function( elem, name ) {
    return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
  },

  // args is for internal usage only
  each: function( obj, callback, args ) {
    var value,
      i = 0,
      length = obj.length,
      isArray = isArraylike( obj );

    if ( args ) {
      if ( isArray ) {
        for ( ; i < length; i++ ) {
          value = callback.apply( obj[ i ], args );

          if ( value === false ) {
            break;
          }
        }
      } else {
        for ( i in obj ) {
          value = callback.apply( obj[ i ], args );

          if ( value === false ) {
            break;
          }
        }
      }

    // A special, fast, case for the most common use of each
    } else {
      if ( isArray ) {
        for ( ; i < length; i++ ) {
          value = callback.call( obj[ i ], i, obj[ i ] );

          if ( value === false ) {
            break;
          }
        }
      } else {
        for ( i in obj ) {
          value = callback.call( obj[ i ], i, obj[ i ] );

          if ( value === false ) {
            break;
          }
        }
      }
    }

    return obj;
  },

  // Support: Android<4.1
  trim: function( text ) {
    return text == null ?
      "" :
      ( text + "" ).replace( rtrim, "" );
  },

  // results is for internal usage only
  makeArray: function( arr, results ) {
    var ret = results || [];

    if ( arr != null ) {
      if ( isArraylike( Object(arr) ) ) {
        jQuery.merge( ret,
          typeof arr === "string" ?
          [ arr ] : arr
        );
      } else {
        push.call( ret, arr );
      }
    }

    return ret;
  },

  inArray: function( elem, arr, i ) {
    return arr == null ? -1 : indexOf.call( arr, elem, i );
  },

  merge: function( first, second ) {
    var len = +second.length,
      j = 0,
      i = first.length;

    for ( ; j < len; j++ ) {
      first[ i++ ] = second[ j ];
    }

    first.length = i;

    return first;
  },

  grep: function( elems, callback, invert ) {
    var callbackInverse,
      matches = [],
      i = 0,
      length = elems.length,
      callbackExpect = !invert;

    // Go through the array, only saving the items
    // that pass the validator function
    for ( ; i < length; i++ ) {
      callbackInverse = !callback( elems[ i ], i );
      if ( callbackInverse !== callbackExpect ) {
        matches.push( elems[ i ] );
      }
    }

    return matches;
  },

  // arg is for internal usage only
  map: function( elems, callback, arg ) {
    var value,
      i = 0,
      length = elems.length,
      isArray = isArraylike( elems ),
      ret = [];

    // Go through the array, translating each of the items to their new values
    if ( isArray ) {
      for ( ; i < length; i++ ) {
        value = callback( elems[ i ], i, arg );

        if ( value != null ) {
          ret.push( value );
        }
      }

    // Go through every key on the object,
    } else {
      for ( i in elems ) {
        value = callback( elems[ i ], i, arg );

        if ( value != null ) {
          ret.push( value );
        }
      }
    }

    // Flatten any nested arrays
    return concat.apply( [], ret );
  },

  // A global GUID counter for objects
  guid: 1,

  // Bind a function to a context, optionally partially applying any
  // arguments.
  proxy: function( fn, context ) {
    var tmp, args, proxy;

    if ( typeof context === "string" ) {
      tmp = fn[ context ];
      context = fn;
      fn = tmp;
    }

    // Quick check to determine if target is callable, in the spec
    // this throws a TypeError, but we will just return undefined.
    if ( !jQuery.isFunction( fn ) ) {
      return undefined;
    }

    // Simulated bind
    args = slice.call( arguments, 2 );
    proxy = function() {
      return fn.apply( context || this, args.concat( slice.call( arguments ) ) );
    };

    // Set the guid of unique handler to the same of original handler, so it can be removed
    proxy.guid = fn.guid = fn.guid || jQuery.guid++;

    return proxy;
  },

  now: Date.now,

  // jQuery.support is not used in Core but other projects attach their
  // properties to it so it needs to exist.
  support: support
});

// Populate the class2type map
jQuery.each("Boolean Number String Function Array Date RegExp Object Error".split(" "), function(i, name) {
  class2type[ "[object " + name + "]" ] = name.toLowerCase();
});

function isArraylike( obj ) {

  // Support: iOS 8.2 (not reproducible in simulator)
  // `in` check used to prevent JIT error (gh-2145)
  // hasOwn isn't used here due to false negatives
  // regarding Nodelist length in IE
  var length = "length" in obj && obj.length,
    type = jQuery.type( obj );

  if ( type === "function" || jQuery.isWindow( obj ) ) {
    return false;
  }

  if ( obj.nodeType === 1 && length ) {
    return true;
  }

  return type === "array" || length === 0 ||
    typeof length === "number" && length > 0 && ( length - 1 ) in obj;
}
var Sizzle =
/*!
 * Sizzle CSS Selector Engine v2.2.0-pre
 * http://sizzlejs.com/
 *
 * Copyright 2008, 2014 jQuery Foundation, Inc. and other contributors
 * Released under the MIT license
 * http://jquery.org/license
 *
 * Date: 2014-12-16
 */
(function( window ) {

var i,
  support,
  Expr,
  getText,
  isXML,
  tokenize,
  compile,
  select,
  outermostContext,
  sortInput,
  hasDuplicate,

  // Local document vars
  setDocument,
  document,
  docElem,
  documentIsHTML,
  rbuggyQSA,
  rbuggyMatches,
  matches,
  contains,

  // Instance-specific data
  expando = "sizzle" + 1 * new Date(),
  preferredDoc = window.document,
  dirruns = 0,
  done = 0,
  classCache = createCache(),
  tokenCache = createCache(),
  compilerCache = createCache(),
  sortOrder = function( a, b ) {
    if ( a === b ) {
      hasDuplicate = true;
    }
    return 0;
  },

  // General-purpose constants
  MAX_NEGATIVE = 1 << 31,

  // Instance methods
  hasOwn = ({}).hasOwnProperty,
  arr = [],
  pop = arr.pop,
  push_native = arr.push,
  push = arr.push,
  slice = arr.slice,
  // Use a stripped-down indexOf as it's faster than native
  // http://jsperf.com/thor-indexof-vs-for/5
  indexOf = function( list, elem ) {
    var i = 0,
      len = list.length;
    for ( ; i < len; i++ ) {
      if ( list[i] === elem ) {
        return i;
      }
    }
    return -1;
  },

  booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",

  // Regular expressions

  // Whitespace characters http://www.w3.org/TR/css3-selectors/#whitespace
  whitespace = "[\\x20\\t\\r\\n\\f]",
  // http://www.w3.org/TR/css3-syntax/#characters
  characterEncoding = "(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+",

  // Loosely modeled on CSS identifier characters
  // An unquoted value should be a CSS identifier http://www.w3.org/TR/css3-selectors/#attribute-selectors
  // Proper syntax: http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
  identifier = characterEncoding.replace( "w", "w#" ),

  // Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
  attributes = "\\[" + whitespace + "*(" + characterEncoding + ")(?:" + whitespace +
    // Operator (capture 2)
    "*([*^$|!~]?=)" + whitespace +
    // "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]"
    "*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace +
    "*\\]",

  pseudos = ":(" + characterEncoding + ")(?:\\((" +
    // To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
    // 1. quoted (capture 3; capture 4 or capture 5)
    "('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +
    // 2. simple (capture 6)
    "((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +
    // 3. anything else (capture 2)
    ".*" +
    ")\\)|)",

  // Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
  rwhitespace = new RegExp( whitespace + "+", "g" ),
  rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),

  rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
  rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ),

  rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g" ),

  rpseudo = new RegExp( pseudos ),
  ridentifier = new RegExp( "^" + identifier + "$" ),

  matchExpr = {
    "ID": new RegExp( "^#(" + characterEncoding + ")" ),
    "CLASS": new RegExp( "^\\.(" + characterEncoding + ")" ),
    "TAG": new RegExp( "^(" + characterEncoding.replace( "w", "w*" ) + ")" ),
    "ATTR": new RegExp( "^" + attributes ),
    "PSEUDO": new RegExp( "^" + pseudos ),
    "CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
      "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
      "*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
    "bool": new RegExp( "^(?:" + booleans + ")$", "i" ),
    // For use in libraries implementing .is()
    // We use this for POS matching in `select`
    "needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +
      whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
  },

  rinputs = /^(?:input|select|textarea|button)$/i,
  rheader = /^h\d$/i,

  rnative = /^[^{]+\{\s*\[native \w/,

  // Easily-parseable/retrievable ID or TAG or CLASS selectors
  rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,

  rsibling = /[+~]/,
  rescape = /'|\\/g,

  // CSS escapes http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
  runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ),
  funescape = function( _, escaped, escapedWhitespace ) {
    var high = "0x" + escaped - 0x10000;
    // NaN means non-codepoint
    // Support: Firefox<24
    // Workaround erroneous numeric interpretation of +"0x"
    return high !== high || escapedWhitespace ?
      escaped :
      high < 0 ?
        // BMP codepoint
        String.fromCharCode( high + 0x10000 ) :
        // Supplemental Plane codepoint (surrogate pair)
        String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
  },

  // Used for iframes
  // See setDocument()
  // Removing the function wrapper causes a "Permission Denied"
  // error in IE
  unloadHandler = function() {
    setDocument();
  };

// Optimize for push.apply( _, NodeList )
try {
  push.apply(
    (arr = slice.call( preferredDoc.childNodes )),
    preferredDoc.childNodes
  );
  // Support: Android<4.0
  // Detect silently failing push.apply
  arr[ preferredDoc.childNodes.length ].nodeType;
} catch ( e ) {
  push = { apply: arr.length ?

    // Leverage slice if possible
    function( target, els ) {
      push_native.apply( target, slice.call(els) );
    } :

    // Support: IE<9
    // Otherwise append directly
    function( target, els ) {
      var j = target.length,
        i = 0;
      // Can't trust NodeList.length
      while ( (target[j++] = els[i++]) ) {}
      target.length = j - 1;
    }
  };
}

function Sizzle( selector, context, results, seed ) {
  var match, elem, m, nodeType,
    // QSA vars
    i, groups, old, nid, newContext, newSelector;

  if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
    setDocument( context );
  }

  context = context || document;
  results = results || [];
  nodeType = context.nodeType;

  if ( typeof selector !== "string" || !selector ||
    nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {

    return results;
  }

  if ( !seed && documentIsHTML ) {

    // Try to shortcut find operations when possible (e.g., not under DocumentFragment)
    if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) {
      // Speed-up: Sizzle("#ID")
      if ( (m = match[1]) ) {
        if ( nodeType === 9 ) {
          elem = context.getElementById( m );
          // Check parentNode to catch when Blackberry 4.6 returns
          // nodes that are no longer in the document (jQuery #6963)
          if ( elem && elem.parentNode ) {
            // Handle the case where IE, Opera, and Webkit return items
            // by name instead of ID
            if ( elem.id === m ) {
              results.push( elem );
              return results;
            }
          } else {
            return results;
          }
        } else {
          // Context is not a document
          if ( context.ownerDocument && (elem = context.ownerDocument.getElementById( m )) &&
            contains( context, elem ) && elem.id === m ) {
            results.push( elem );
            return results;
          }
        }

      // Speed-up: Sizzle("TAG")
      } else if ( match[2] ) {
        push.apply( results, context.getElementsByTagName( selector ) );
        return results;

      // Speed-up: Sizzle(".CLASS")
      } else if ( (m = match[3]) && support.getElementsByClassName ) {
        push.apply( results, context.getElementsByClassName( m ) );
        return results;
      }
    }

    // QSA path
    if ( support.qsa && (!rbuggyQSA || !rbuggyQSA.test( selector )) ) {
      nid = old = expando;
      newContext = context;
      newSelector = nodeType !== 1 && selector;

      // qSA works strangely on Element-rooted queries
      // We can work around this by specifying an extra ID on the root
      // and working up from there (Thanks to Andrew Dupont for the technique)
      // IE 8 doesn't work on object elements
      if ( nodeType === 1 && context.nodeName.toLowerCase() !== "object" ) {
        groups = tokenize( selector );

        if ( (old = context.getAttribute("id")) ) {
          nid = old.replace( rescape, "\\$&" );
        } else {
          context.setAttribute( "id", nid );
        }
        nid = "[id='" + nid + "'] ";

        i = groups.length;
        while ( i-- ) {
          groups[i] = nid + toSelector( groups[i] );
        }
        newContext = rsibling.test( selector ) && testContext( context.parentNode ) || context;
        newSelector = groups.join(",");
      }

      if ( newSelector ) {
        try {
          push.apply( results,
            newContext.querySelectorAll( newSelector )
          );
          return results;
        } catch(qsaError) {
        } finally {
          if ( !old ) {
            context.removeAttribute("id");
          }
        }
      }
    }
  }

  // All others
  return select( selector.replace( rtrim, "$1" ), context, results, seed );
}

/**
 * Create key-value caches of limited size
 * @returns {Function(string, Object)} Returns the Object data after storing it on itself with
 *  property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
 *  deleting the oldest entry
 */
function createCache() {
  var keys = [];

  function cache( key, value ) {
    // Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
    if ( keys.push( key + " " ) > Expr.cacheLength ) {
      // Only keep the most recent entries
      delete cache[ keys.shift() ];
    }
    return (cache[ key + " " ] = value);
  }
  return cache;
}

/**
 * Mark a function for special use by Sizzle
 * @param {Function} fn The function to mark
 */
function markFunction( fn ) {
  fn[ expando ] = true;
  return fn;
}

/**
 * Support testing using an element
 * @param {Function} fn Passed the created div and expects a boolean result
 */
function assert( fn ) {
  var div = document.createElement("div");

  try {
    return !!fn( div );
  } catch (e) {
    return false;
  } finally {
    // Remove from its parent by default
    if ( div.parentNode ) {
      div.parentNode.removeChild( div );
    }
    // release memory in IE
    div = null;
  }
}

/**
 * Adds the same handler for all of the specified attrs
 * @param {String} attrs Pipe-separated list of attributes
 * @param {Function} handler The method that will be applied
 */
function addHandle( attrs, handler ) {
  var arr = attrs.split("|"),
    i = attrs.length;

  while ( i-- ) {
    Expr.attrHandle[ arr[i] ] = handler;
  }
}

/**
 * Checks document order of two siblings
 * @param {Element} a
 * @param {Element} b
 * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
 */
function siblingCheck( a, b ) {
  var cur = b && a,
    diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
      ( ~b.sourceIndex || MAX_NEGATIVE ) -
      ( ~a.sourceIndex || MAX_NEGATIVE );

  // Use IE sourceIndex if available on both nodes
  if ( diff ) {
    return diff;
  }

  // Check if b follows a
  if ( cur ) {
    while ( (cur = cur.nextSibling) ) {
      if ( cur === b ) {
        return -1;
      }
    }
  }

  return a ? 1 : -1;
}

/**
 * Returns a function to use in pseudos for input types
 * @param {String} type
 */
function createInputPseudo( type ) {
  return function( elem ) {
    var name = elem.nodeName.toLowerCase();
    return name === "input" && elem.type === type;
  };
}

/**
 * Returns a function to use in pseudos for buttons
 * @param {String} type
 */
function createButtonPseudo( type ) {
  return function( elem ) {
    var name = elem.nodeName.toLowerCase();
    return (name === "input" || name === "button") && elem.type === type;
  };
}

/**
 * Returns a function to use in pseudos for positionals
 * @param {Function} fn
 */
function createPositionalPseudo( fn ) {
  return markFunction(function( argument ) {
    argument = +argument;
    return markFunction(function( seed, matches ) {
      var j,
        matchIndexes = fn( [], seed.length, argument ),
        i = matchIndexes.length;

      // Match elements found at the specified indexes
      while ( i-- ) {
        if ( seed[ (j = matchIndexes[i]) ] ) {
          seed[j] = !(matches[j] = seed[j]);
        }
      }
    });
  });
}

/**
 * Checks a node for validity as a Sizzle context
 * @param {Element|Object=} context
 * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
 */
function testContext( context ) {
  return context && typeof context.getElementsByTagName !== "undefined" && context;
}

// Expose support vars for convenience
support = Sizzle.support = {};

/**
 * Detects XML nodes
 * @param {Element|Object} elem An element or a document
 * @returns {Boolean} True iff elem is a non-HTML XML node
 */
isXML = Sizzle.isXML = function( elem ) {
  // documentElement is verified for cases where it doesn't yet exist
  // (such as loading iframes in IE - #4833)
  var documentElement = elem && (elem.ownerDocument || elem).documentElement;
  return documentElement ? documentElement.nodeName !== "HTML" : false;
};

/**
 * Sets document-related variables once based on the current document
 * @param {Element|Object} [doc] An element or document object to use to set the document
 * @returns {Object} Returns the current document
 */
setDocument = Sizzle.setDocument = function( node ) {
  var hasCompare, parent,
    doc = node ? node.ownerDocument || node : preferredDoc;

  // If no document and documentElement is available, return
  if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {
    return document;
  }

  // Set our document
  document = doc;
  docElem = doc.documentElement;
  parent = doc.defaultView;

  // Support: IE>8
  // If iframe document is assigned to "document" variable and if iframe has been reloaded,
  // IE will throw "permission denied" error when accessing "document" variable, see jQuery #13936
  // IE6-8 do not support the defaultView property so parent will be undefined
  if ( parent && parent !== parent.top ) {
    // IE11 does not have attachEvent, so all must suffer
    if ( parent.addEventListener ) {
      parent.addEventListener( "unload", unloadHandler, false );
    } else if ( parent.attachEvent ) {
      parent.attachEvent( "onunload", unloadHandler );
    }
  }

  /* Support tests
  ---------------------------------------------------------------------- */
  documentIsHTML = !isXML( doc );

  /* Attributes
  ---------------------------------------------------------------------- */

  // Support: IE<8
  // Verify that getAttribute really returns attributes and not properties
  // (excepting IE8 booleans)
  support.attributes = assert(function( div ) {
    div.className = "i";
    return !div.getAttribute("className");
  });

  /* getElement(s)By*
  ---------------------------------------------------------------------- */

  // Check if getElementsByTagName("*") returns only elements
  support.getElementsByTagName = assert(function( div ) {
    div.appendChild( doc.createComment("") );
    return !div.getElementsByTagName("*").length;
  });

  // Support: IE<9
  support.getElementsByClassName = rnative.test( doc.getElementsByClassName );

  // Support: IE<10
  // Check if getElementById returns elements by name
  // The broken getElementById methods don't pick up programatically-set names,
  // so use a roundabout getElementsByName test
  support.getById = assert(function( div ) {
    docElem.appendChild( div ).id = expando;
    return !doc.getElementsByName || !doc.getElementsByName( expando ).length;
  });

  // ID find and filter
  if ( support.getById ) {
    Expr.find["ID"] = function( id, context ) {
      if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
        var m = context.getElementById( id );
        // Check parentNode to catch when Blackberry 4.6 returns
        // nodes that are no longer in the document #6963
        return m && m.parentNode ? [ m ] : [];
      }
    };
    Expr.filter["ID"] = function( id ) {
      var attrId = id.replace( runescape, funescape );
      return function( elem ) {
        return elem.getAttribute("id") === attrId;
      };
    };
  } else {
    // Support: IE6/7
    // getElementById is not reliable as a find shortcut
    delete Expr.find["ID"];

    Expr.filter["ID"] =  function( id ) {
      var attrId = id.replace( runescape, funescape );
      return function( elem ) {
        var node = typeof elem.getAttributeNode !== "undefined" && elem.getAttributeNode("id");
        return node && node.value === attrId;
      };
    };
  }

  // Tag
  Expr.find["TAG"] = support.getElementsByTagName ?
    function( tag, context ) {
      if ( typeof context.getElementsByTagName !== "undefined" ) {
        return context.getElementsByTagName( tag );

      // DocumentFragment nodes don't have gEBTN
      } else if ( support.qsa ) {
        return context.querySelectorAll( tag );
      }
    } :

    function( tag, context ) {
      var elem,
        tmp = [],
        i = 0,
        // By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too
        results = context.getElementsByTagName( tag );

      // Filter out possible comments
      if ( tag === "*" ) {
        while ( (elem = results[i++]) ) {
          if ( elem.nodeType === 1 ) {
            tmp.push( elem );
          }
        }

        return tmp;
      }
      return results;
    };

  // Class
  Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) {
    if ( documentIsHTML ) {
      return context.getElementsByClassName( className );
    }
  };

  /* QSA/matchesSelector
  ---------------------------------------------------------------------- */

  // QSA and matchesSelector support

  // matchesSelector(:active) reports false when true (IE9/Opera 11.5)
  rbuggyMatches = [];

  // qSa(:focus) reports false when true (Chrome 21)
  // We allow this because of a bug in IE8/9 that throws an error
  // whenever `document.activeElement` is accessed on an iframe
  // So, we allow :focus to pass through QSA all the time to avoid the IE error
  // See https://bugs.jquery.com/ticket/13378
  rbuggyQSA = [];

  if ( (support.qsa = rnative.test( doc.querySelectorAll )) ) {
    // Build QSA regex
    // Regex strategy adopted from Diego Perini
    assert(function( div ) {
      // Select is set to empty string on purpose
      // This is to test IE's treatment of not explicitly
      // setting a boolean content attribute,
      // since its presence should be enough
      // https://bugs.jquery.com/ticket/12359
      docElem.appendChild( div ).innerHTML = "<a id='" + expando + "'></a>" +
        "<select id='" + expando + "-\f]' msallowcapture=''>" +
        "<option selected=''></option></select>";

      // Support: IE8, Opera 11-12.16
      // Nothing should be selected when empty strings follow ^= or $= or *=
      // The test attribute must be unknown in Opera but "safe" for WinRT
      // https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
      if ( div.querySelectorAll("[msallowcapture^='']").length ) {
        rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
      }

      // Support: IE8
      // Boolean attributes and "value" are not treated correctly
      if ( !div.querySelectorAll("[selected]").length ) {
        rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
      }

      // Support: Chrome<29, Android<4.2+, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.7+
      if ( !div.querySelectorAll( "[id~=" + expando + "-]" ).length ) {
        rbuggyQSA.push("~=");
      }

      // Webkit/Opera - :checked should return selected option elements
      // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
      // IE8 throws error here and will not see later tests
      if ( !div.querySelectorAll(":checked").length ) {
        rbuggyQSA.push(":checked");
      }

      // Support: Safari 8+, iOS 8+
      // https://bugs.webkit.org/show_bug.cgi?id=136851
      // In-page `selector#id sibing-combinator selector` fails
      if ( !div.querySelectorAll( "a#" + expando + "+*" ).length ) {
        rbuggyQSA.push(".#.+[+~]");
      }
    });

    assert(function( div ) {
      // Support: Windows 8 Native Apps
      // The type and name attributes are restricted during .innerHTML assignment
      var input = doc.createElement("input");
      input.setAttribute( "type", "hidden" );
      div.appendChild( input ).setAttribute( "name", "D" );

      // Support: IE8
      // Enforce case-sensitivity of name attribute
      if ( div.querySelectorAll("[name=d]").length ) {
        rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" );
      }

      // FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
      // IE8 throws error here and will not see later tests
      if ( !div.querySelectorAll(":enabled").length ) {
        rbuggyQSA.push( ":enabled", ":disabled" );
      }

      // Opera 10-11 does not throw on post-comma invalid pseudos
      div.querySelectorAll("*,:x");
      rbuggyQSA.push(",.*:");
    });
  }

  if ( (support.matchesSelector = rnative.test( (matches = docElem.matches ||
    docElem.webkitMatchesSelector ||
    docElem.mozMatchesSelector ||
    docElem.oMatchesSelector ||
    docElem.msMatchesSelector) )) ) {

    assert(function( div ) {
      // Check to see if it's possible to do matchesSelector
      // on a disconnected node (IE 9)
      support.disconnectedMatch = matches.call( div, "div" );

      // This should fail with an exception
      // Gecko does not error, returns false instead
      matches.call( div, "[s!='']:x" );
      rbuggyMatches.push( "!=", pseudos );
    });
  }

  rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") );
  rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") );

  /* Contains
  ---------------------------------------------------------------------- */
  hasCompare = rnative.test( docElem.compareDocumentPosition );

  // Element contains another
  // Purposefully does not implement inclusive descendent
  // As in, an element does not contain itself
  contains = hasCompare || rnative.test( docElem.contains ) ?
    function( a, b ) {
      var adown = a.nodeType === 9 ? a.documentElement : a,
        bup = b && b.parentNode;
      return a === bup || !!( bup && bup.nodeType === 1 && (
        adown.contains ?
          adown.contains( bup ) :
          a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
      ));
    } :
    function( a, b ) {
      if ( b ) {
        while ( (b = b.parentNode) ) {
          if ( b === a ) {
            return true;
          }
        }
      }
      return false;
    };

  /* Sorting
  ---------------------------------------------------------------------- */

  // Document order sorting
  sortOrder = hasCompare ?
  function( a, b ) {

    // Flag for duplicate removal
    if ( a === b ) {
      hasDuplicate = true;
      return 0;
    }

    // Sort on method existence if only one input has compareDocumentPosition
    var compare = !a.compareDocumentPosition - !b.compareDocumentPosition;
    if ( compare ) {
      return compare;
    }

    // Calculate position if both inputs belong to the same document
    compare = ( a.ownerDocument || a ) === ( b.ownerDocument || b ) ?
      a.compareDocumentPosition( b ) :

      // Otherwise we know they are disconnected
      1;

    // Disconnected nodes
    if ( compare & 1 ||
      (!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) {

      // Choose the first element that is related to our preferred document
      if ( a === doc || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) {
        return -1;
      }
      if ( b === doc || b.ownerDocument === preferredDoc && contains(preferredDoc, b) ) {
        return 1;
      }

      // Maintain original order
      return sortInput ?
        ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
        0;
    }

    return compare & 4 ? -1 : 1;
  } :
  function( a, b ) {
    // Exit early if the nodes are identical
    if ( a === b ) {
      hasDuplicate = true;
      return 0;
    }

    var cur,
      i = 0,
      aup = a.parentNode,
      bup = b.parentNode,
      ap = [ a ],
      bp = [ b ];

    // Parentless nodes are either documents or disconnected
    if ( !aup || !bup ) {
      return a === doc ? -1 :
        b === doc ? 1 :
        aup ? -1 :
        bup ? 1 :
        sortInput ?
        ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
        0;

    // If the nodes are siblings, we can do a quick check
    } else if ( aup === bup ) {
      return siblingCheck( a, b );
    }

    // Otherwise we need full lists of their ancestors for comparison
    cur = a;
    while ( (cur = cur.parentNode) ) {
      ap.unshift( cur );
    }
    cur = b;
    while ( (cur = cur.parentNode) ) {
      bp.unshift( cur );
    }

    // Walk down the tree looking for a discrepancy
    while ( ap[i] === bp[i] ) {
      i++;
    }

    return i ?
      // Do a sibling check if the nodes have a common ancestor
      siblingCheck( ap[i], bp[i] ) :

      // Otherwise nodes in our document sort first
      ap[i] === preferredDoc ? -1 :
      bp[i] === preferredDoc ? 1 :
      0;
  };

  return doc;
};

Sizzle.matches = function( expr, elements ) {
  return Sizzle( expr, null, null, elements );
};

Sizzle.matchesSelector = function( elem, expr ) {
  // Set document vars if needed
  if ( ( elem.ownerDocument || elem ) !== document ) {
    setDocument( elem );
  }

  // Make sure that attribute selectors are quoted
  expr = expr.replace( rattributeQuotes, "='$1']" );

  if ( support.matchesSelector && documentIsHTML &&
    ( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&
    ( !rbuggyQSA     || !rbuggyQSA.test( expr ) ) ) {

    try {
      var ret = matches.call( elem, expr );

      // IE 9's matchesSelector returns false on disconnected nodes
      if ( ret || support.disconnectedMatch ||
          // As well, disconnected nodes are said to be in a document
          // fragment in IE 9
          elem.document && elem.document.nodeType !== 11 ) {
        return ret;
      }
    } catch (e) {}
  }

  return Sizzle( expr, document, null, [ elem ] ).length > 0;
};

Sizzle.contains = function( context, elem ) {
  // Set document vars if needed
  if ( ( context.ownerDocument || context ) !== document ) {
    setDocument( context );
  }
  return contains( context, elem );
};

Sizzle.attr = function( elem, name ) {
  // Set document vars if needed
  if ( ( elem.ownerDocument || elem ) !== document ) {
    setDocument( elem );
  }

  var fn = Expr.attrHandle[ name.toLowerCase() ],
    // Don't get fooled by Object.prototype properties (jQuery #13807)
    val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?
      fn( elem, name, !documentIsHTML ) :
      undefined;

  return val !== undefined ?
    val :
    support.attributes || !documentIsHTML ?
      elem.getAttribute( name ) :
      (val = elem.getAttributeNode(name)) && val.specified ?
        val.value :
        null;
};

Sizzle.error = function( msg ) {
  throw new Error( "Syntax error, unrecognized expression: " + msg );
};

/**
 * Document sorting and removing duplicates
 * @param {ArrayLike} results
 */
Sizzle.uniqueSort = function( results ) {
  var elem,
    duplicates = [],
    j = 0,
    i = 0;

  // Unless we *know* we can detect duplicates, assume their presence
  hasDuplicate = !support.detectDuplicates;
  sortInput = !support.sortStable && results.slice( 0 );
  results.sort( sortOrder );

  if ( hasDuplicate ) {
    while ( (elem = results[i++]) ) {
      if ( elem === results[ i ] ) {
        j = duplicates.push( i );
      }
    }
    while ( j-- ) {
      results.splice( duplicates[ j ], 1 );
    }
  }

  // Clear input after sorting to release objects
  // See https://github.com/jquery/sizzle/pull/225
  sortInput = null;

  return results;
};

/**
 * Utility function for retrieving the text value of an array of DOM nodes
 * @param {Array|Element} elem
 */
getText = Sizzle.getText = function( elem ) {
  var node,
    ret = "",
    i = 0,
    nodeType = elem.nodeType;

  if ( !nodeType ) {
    // If no nodeType, this is expected to be an array
    while ( (node = elem[i++]) ) {
      // Do not traverse comment nodes
      ret += getText( node );
    }
  } else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
    // Use textContent for elements
    // innerText usage removed for consistency of new lines (jQuery #11153)
    if ( typeof elem.textContent === "string" ) {
      return elem.textContent;
    } else {
      // Traverse its children
      for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
        ret += getText( elem );
      }
    }
  } else if ( nodeType === 3 || nodeType === 4 ) {
    return elem.nodeValue;
  }
  // Do not include comment or processing instruction nodes

  return ret;
};

Expr = Sizzle.selectors = {

  // Can be adjusted by the user
  cacheLength: 50,

  createPseudo: markFunction,

  match: matchExpr,

  attrHandle: {},

  find: {},

  relative: {
    ">": { dir: "parentNode", first: true },
    " ": { dir: "parentNode" },
    "+": { dir: "previousSibling", first: true },
    "~": { dir: "previousSibling" }
  },

  preFilter: {
    "ATTR": function( match ) {
      match[1] = match[1].replace( runescape, funescape );

      // Move the given value to match[3] whether quoted or unquoted
      match[3] = ( match[3] || match[4] || match[5] || "" ).replace( runescape, funescape );

      if ( match[2] === "~=" ) {
        match[3] = " " + match[3] + " ";
      }

      return match.slice( 0, 4 );
    },

    "CHILD": function( match ) {
      /* matches from matchExpr["CHILD"]
        1 type (only|nth|...)
        2 what (child|of-type)
        3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
        4 xn-component of xn+y argument ([+-]?\d*n|)
        5 sign of xn-component
        6 x of xn-component
        7 sign of y-component
        8 y of y-component
      */
      match[1] = match[1].toLowerCase();

      if ( match[1].slice( 0, 3 ) === "nth" ) {
        // nth-* requires argument
        if ( !match[3] ) {
          Sizzle.error( match[0] );
        }

        // numeric x and y parameters for Expr.filter.CHILD
        // remember that false/true cast respectively to 0/1
        match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) );
        match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" );

      // other types prohibit arguments
      } else if ( match[3] ) {
        Sizzle.error( match[0] );
      }

      return match;
    },

    "PSEUDO": function( match ) {
      var excess,
        unquoted = !match[6] && match[2];

      if ( matchExpr["CHILD"].test( match[0] ) ) {
        return null;
      }

      // Accept quoted arguments as-is
      if ( match[3] ) {
        match[2] = match[4] || match[5] || "";

      // Strip excess characters from unquoted arguments
      } else if ( unquoted && rpseudo.test( unquoted ) &&
        // Get excess from tokenize (recursively)
        (excess = tokenize( unquoted, true )) &&
        // advance to the next closing parenthesis
        (excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) {

        // excess is a negative index
        match[0] = match[0].slice( 0, excess );
        match[2] = unquoted.slice( 0, excess );
      }

      // Return only captures needed by the pseudo filter method (type and argument)
      return match.slice( 0, 3 );
    }
  },

  filter: {

    "TAG": function( nodeNameSelector ) {
      var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();
      return nodeNameSelector === "*" ?
        function() { return true; } :
        function( elem ) {
          return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
        };
    },

    "CLASS": function( className ) {
      var pattern = classCache[ className + " " ];

      return pattern ||
        (pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) &&
        classCache( className, function( elem ) {
          return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== "undefined" && elem.getAttribute("class") || "" );
        });
    },

    "ATTR": function( name, operator, check ) {
      return function( elem ) {
        var result = Sizzle.attr( elem, name );

        if ( result == null ) {
          return operator === "!=";
        }
        if ( !operator ) {
          return true;
        }

        result += "";

        return operator === "=" ? result === check :
          operator === "!=" ? result !== check :
          operator === "^=" ? check && result.indexOf( check ) === 0 :
          operator === "*=" ? check && result.indexOf( check ) > -1 :
          operator === "$=" ? check && result.slice( -check.length ) === check :
          operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 :
          operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
          false;
      };
    },

    "CHILD": function( type, what, argument, first, last ) {
      var simple = type.slice( 0, 3 ) !== "nth",
        forward = type.slice( -4 ) !== "last",
        ofType = what === "of-type";

      return first === 1 && last === 0 ?

        // Shortcut for :nth-*(n)
        function( elem ) {
          return !!elem.parentNode;
        } :

        function( elem, context, xml ) {
          var cache, outerCache, node, diff, nodeIndex, start,
            dir = simple !== forward ? "nextSibling" : "previousSibling",
            parent = elem.parentNode,
            name = ofType && elem.nodeName.toLowerCase(),
            useCache = !xml && !ofType;

          if ( parent ) {

            // :(first|last|only)-(child|of-type)
            if ( simple ) {
              while ( dir ) {
                node = elem;
                while ( (node = node[ dir ]) ) {
                  if ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) {
                    return false;
                  }
                }
                // Reverse direction for :only-* (if we haven't yet done so)
                start = dir = type === "only" && !start && "nextSibling";
              }
              return true;
            }

            start = [ forward ? parent.firstChild : parent.lastChild ];

            // non-xml :nth-child(...) stores cache data on `parent`
            if ( forward && useCache ) {
              // Seek `elem` from a previously-cached index
              outerCache = parent[ expando ] || (parent[ expando ] = {});
              cache = outerCache[ type ] || [];
              nodeIndex = cache[0] === dirruns && cache[1];
              diff = cache[0] === dirruns && cache[2];
              node = nodeIndex && parent.childNodes[ nodeIndex ];

              while ( (node = ++nodeIndex && node && node[ dir ] ||

                // Fallback to seeking `elem` from the start
                (diff = nodeIndex = 0) || start.pop()) ) {

                // When found, cache indexes on `parent` and break
                if ( node.nodeType === 1 && ++diff && node === elem ) {
                  outerCache[ type ] = [ dirruns, nodeIndex, diff ];
                  break;
                }
              }

            // Use previously-cached element index if available
            } else if ( useCache && (cache = (elem[ expando ] || (elem[ expando ] = {}))[ type ]) && cache[0] === dirruns ) {
              diff = cache[1];

            // xml :nth-child(...) or :nth-last-child(...) or :nth(-last)?-of-type(...)
            } else {
              // Use the same loop as above to seek `elem` from the start
              while ( (node = ++nodeIndex && node && node[ dir ] ||
                (diff = nodeIndex = 0) || start.pop()) ) {

                if ( ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) && ++diff ) {
                  // Cache the index of each encountered element
                  if ( useCache ) {
                    (node[ expando ] || (node[ expando ] = {}))[ type ] = [ dirruns, diff ];
                  }

                  if ( node === elem ) {
                    break;
                  }
                }
              }
            }

            // Incorporate the offset, then check against cycle size
            diff -= last;
            return diff === first || ( diff % first === 0 && diff / first >= 0 );
          }
        };
    },

    "PSEUDO": function( pseudo, argument ) {
      // pseudo-class names are case-insensitive
      // http://www.w3.org/TR/selectors/#pseudo-classes
      // Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
      // Remember that setFilters inherits from pseudos
      var args,
        fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
          Sizzle.error( "unsupported pseudo: " + pseudo );

      // The user may use createPseudo to indicate that
      // arguments are needed to create the filter function
      // just as Sizzle does
      if ( fn[ expando ] ) {
        return fn( argument );
      }

      // But maintain support for old signatures
      if ( fn.length > 1 ) {
        args = [ pseudo, pseudo, "", argument ];
        return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
          markFunction(function( seed, matches ) {
            var idx,
              matched = fn( seed, argument ),
              i = matched.length;
            while ( i-- ) {
              idx = indexOf( seed, matched[i] );
              seed[ idx ] = !( matches[ idx ] = matched[i] );
            }
          }) :
          function( elem ) {
            return fn( elem, 0, args );
          };
      }

      return fn;
    }
  },

  pseudos: {
    // Potentially complex pseudos
    "not": markFunction(function( selector ) {
      // Trim the selector passed to compile
      // to avoid treating leading and trailing
      // spaces as combinators
      var input = [],
        results = [],
        matcher = compile( selector.replace( rtrim, "$1" ) );

      return matcher[ expando ] ?
        markFunction(function( seed, matches, context, xml ) {
          var elem,
            unmatched = matcher( seed, null, xml, [] ),
            i = seed.length;

          // Match elements unmatched by `matcher`
          while ( i-- ) {
            if ( (elem = unmatched[i]) ) {
              seed[i] = !(matches[i] = elem);
            }
          }
        }) :
        function( elem, context, xml ) {
          input[0] = elem;
          matcher( input, null, xml, results );
          // Don't keep the element (issue #299)
          input[0] = null;
          return !results.pop();
        };
    }),

    "has": markFunction(function( selector ) {
      return function( elem ) {
        return Sizzle( selector, elem ).length > 0;
      };
    }),

    "contains": markFunction(function( text ) {
      text = text.replace( runescape, funescape );
      return function( elem ) {
        return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1;
      };
    }),

    // "Whether an element is represented by a :lang() selector
    // is based solely on the element's language value
    // being equal to the identifier C,
    // or beginning with the identifier C immediately followed by "-".
    // The matching of C against the element's language value is performed case-insensitively.
    // The identifier C does not have to be a valid language name."
    // http://www.w3.org/TR/selectors/#lang-pseudo
    "lang": markFunction( function( lang ) {
      // lang value must be a valid identifier
      if ( !ridentifier.test(lang || "") ) {
        Sizzle.error( "unsupported lang: " + lang );
      }
      lang = lang.replace( runescape, funescape ).toLowerCase();
      return function( elem ) {
        var elemLang;
        do {
          if ( (elemLang = documentIsHTML ?
            elem.lang :
            elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) {

            elemLang = elemLang.toLowerCase();
            return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
          }
        } while ( (elem = elem.parentNode) && elem.nodeType === 1 );
        return false;
      };
    }),

    // Miscellaneous
    "target": function( elem ) {
      var hash = window.location && window.location.hash;
      return hash && hash.slice( 1 ) === elem.id;
    },

    "root": function( elem ) {
      return elem === docElem;
    },

    "focus": function( elem ) {
      return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);
    },

    // Boolean properties
    "enabled": function( elem ) {
      return elem.disabled === false;
    },

    "disabled": function( elem ) {
      return elem.disabled === true;
    },

    "checked": function( elem ) {
      // In CSS3, :checked should return both checked and selected elements
      // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
      var nodeName = elem.nodeName.toLowerCase();
      return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected);
    },

    "selected": function( elem ) {
      // Accessing this property makes selected-by-default
      // options in Safari work properly
      if ( elem.parentNode ) {
        elem.parentNode.selectedIndex;
      }

      return elem.selected === true;
    },

    // Contents
    "empty": function( elem ) {
      // http://www.w3.org/TR/selectors/#empty-pseudo
      // :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
      //   but not by others (comment: 8; processing instruction: 7; etc.)
      // nodeType < 6 works because attributes (2) do not appear as children
      for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
        if ( elem.nodeType < 6 ) {
          return false;
        }
      }
      return true;
    },

    "parent": function( elem ) {
      return !Expr.pseudos["empty"]( elem );
    },

    // Element/input types
    "header": function( elem ) {
      return rheader.test( elem.nodeName );
    },

    "input": function( elem ) {
      return rinputs.test( elem.nodeName );
    },

    "button": function( elem ) {
      var name = elem.nodeName.toLowerCase();
      return name === "input" && elem.type === "button" || name === "button";
    },

    "text": function( elem ) {
      var attr;
      return elem.nodeName.toLowerCase() === "input" &&
        elem.type === "text" &&

        // Support: IE<8
        // New HTML5 attribute values (e.g., "search") appear with elem.type === "text"
        ( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text" );
    },

    // Position-in-collection
    "first": createPositionalPseudo(function() {
      return [ 0 ];
    }),

    "last": createPositionalPseudo(function( matchIndexes, length ) {
      return [ length - 1 ];
    }),

    "eq": createPositionalPseudo(function( matchIndexes, length, argument ) {
      return [ argument < 0 ? argument + length : argument ];
    }),

    "even": createPositionalPseudo(function( matchIndexes, length ) {
      var i = 0;
      for ( ; i < length; i += 2 ) {
        matchIndexes.push( i );
      }
      return matchIndexes;
    }),

    "odd": createPositionalPseudo(function( matchIndexes, length ) {
      var i = 1;
      for ( ; i < length; i += 2 ) {
        matchIndexes.push( i );
      }
      return matchIndexes;
    }),

    "lt": createPositionalPseudo(function( matchIndexes, length, argument ) {
      var i = argument < 0 ? argument + length : argument;
      for ( ; --i >= 0; ) {
        matchIndexes.push( i );
      }
      return matchIndexes;
    }),

    "gt": createPositionalPseudo(function( matchIndexes, length, argument ) {
      var i = argument < 0 ? argument + length : argument;
      for ( ; ++i < length; ) {
        matchIndexes.push( i );
      }
      return matchIndexes;
    })
  }
};

Expr.pseudos["nth"] = Expr.pseudos["eq"];

// Add button/input type pseudos
for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
  Expr.pseudos[ i ] = createInputPseudo( i );
}
for ( i in { submit: true, reset: true } ) {
  Expr.pseudos[ i ] = createButtonPseudo( i );
}

// Easy API for creating new setFilters
function setFilters() {}
setFilters.prototype = Expr.filters = Expr.pseudos;
Expr.setFilters = new setFilters();

tokenize = Sizzle.tokenize = function( selector, parseOnly ) {
  var matched, match, tokens, type,
    soFar, groups, preFilters,
    cached = tokenCache[ selector + " " ];

  if ( cached ) {
    return parseOnly ? 0 : cached.slice( 0 );
  }

  soFar = selector;
  groups = [];
  preFilters = Expr.preFilter;

  while ( soFar ) {

    // Comma and first run
    if ( !matched || (match = rcomma.exec( soFar )) ) {
      if ( match ) {
        // Don't consume trailing commas as valid
        soFar = soFar.slice( match[0].length ) || soFar;
      }
      groups.push( (tokens = []) );
    }

    matched = false;

    // Combinators
    if ( (match = rcombinators.exec( soFar )) ) {
      matched = match.shift();
      tokens.push({
        value: matched,
        // Cast descendant combinators to space
        type: match[0].replace( rtrim, " " )
      });
      soFar = soFar.slice( matched.length );
    }

    // Filters
    for ( type in Expr.filter ) {
      if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||
        (match = preFilters[ type ]( match ))) ) {
        matched = match.shift();
        tokens.push({
          value: matched,
          type: type,
          matches: match
        });
        soFar = soFar.slice( matched.length );
      }
    }

    if ( !matched ) {
      break;
    }
  }

  // Return the length of the invalid excess
  // if we're just parsing
  // Otherwise, throw an error or return tokens
  return parseOnly ?
    soFar.length :
    soFar ?
      Sizzle.error( selector ) :
      // Cache the tokens
      tokenCache( selector, groups ).slice( 0 );
};

function toSelector( tokens ) {
  var i = 0,
    len = tokens.length,
    selector = "";
  for ( ; i < len; i++ ) {
    selector += tokens[i].value;
  }
  return selector;
}

function addCombinator( matcher, combinator, base ) {
  var dir = combinator.dir,
    checkNonElements = base && dir === "parentNode",
    doneName = done++;

  return combinator.first ?
    // Check against closest ancestor/preceding element
    function( elem, context, xml ) {
      while ( (elem = elem[ dir ]) ) {
        if ( elem.nodeType === 1 || checkNonElements ) {
          return matcher( elem, context, xml );
        }
      }
    } :

    // Check against all ancestor/preceding elements
    function( elem, context, xml ) {
      var oldCache, outerCache,
        newCache = [ dirruns, doneName ];

      // We can't set arbitrary data on XML nodes, so they don't benefit from dir caching
      if ( xml ) {
        while ( (elem = elem[ dir ]) ) {
          if ( elem.nodeType === 1 || checkNonElements ) {
            if ( matcher( elem, context, xml ) ) {
              return true;
            }
          }
        }
      } else {
        while ( (elem = elem[ dir ]) ) {
          if ( elem.nodeType === 1 || checkNonElements ) {
            outerCache = elem[ expando ] || (elem[ expando ] = {});
            if ( (oldCache = outerCache[ dir ]) &&
              oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) {

              // Assign to newCache so results back-propagate to previous elements
              return (newCache[ 2 ] = oldCache[ 2 ]);
            } else {
              // Reuse newcache so results back-propagate to previous elements
              outerCache[ dir ] = newCache;

              // A match means we're done; a fail means we have to keep checking
              if ( (newCache[ 2 ] = matcher( elem, context, xml )) ) {
                return true;
              }
            }
          }
        }
      }
    };
}

function elementMatcher( matchers ) {
  return matchers.length > 1 ?
    function( elem, context, xml ) {
      var i = matchers.length;
      while ( i-- ) {
        if ( !matchers[i]( elem, context, xml ) ) {
          return false;
        }
      }
      return true;
    } :
    matchers[0];
}

function multipleContexts( selector, contexts, results ) {
  var i = 0,
    len = contexts.length;
  for ( ; i < len; i++ ) {
    Sizzle( selector, contexts[i], results );
  }
  return results;
}

function condense( unmatched, map, filter, context, xml ) {
  var elem,
    newUnmatched = [],
    i = 0,
    len = unmatched.length,
    mapped = map != null;

  for ( ; i < len; i++ ) {
    if ( (elem = unmatched[i]) ) {
      if ( !filter || filter( elem, context, xml ) ) {
        newUnmatched.push( elem );
        if ( mapped ) {
          map.push( i );
        }
      }
    }
  }

  return newUnmatched;
}

function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
  if ( postFilter && !postFilter[ expando ] ) {
    postFilter = setMatcher( postFilter );
  }
  if ( postFinder && !postFinder[ expando ] ) {
    postFinder = setMatcher( postFinder, postSelector );
  }
  return markFunction(function( seed, results, context, xml ) {
    var temp, i, elem,
      preMap = [],
      postMap = [],
      preexisting = results.length,

      // Get initial elements from seed or context
      elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ),

      // Prefilter to get matcher input, preserving a map for seed-results synchronization
      matcherIn = preFilter && ( seed || !selector ) ?
        condense( elems, preMap, preFilter, context, xml ) :
        elems,

      matcherOut = matcher ?
        // If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
        postFinder || ( seed ? preFilter : preexisting || postFilter ) ?

          // ...intermediate processing is necessary
          [] :

          // ...otherwise use results directly
          results :
        matcherIn;

    // Find primary matches
    if ( matcher ) {
      matcher( matcherIn, matcherOut, context, xml );
    }

    // Apply postFilter
    if ( postFilter ) {
      temp = condense( matcherOut, postMap );
      postFilter( temp, [], context, xml );

      // Un-match failing elements by moving them back to matcherIn
      i = temp.length;
      while ( i-- ) {
        if ( (elem = temp[i]) ) {
          matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);
        }
      }
    }

    if ( seed ) {
      if ( postFinder || preFilter ) {
        if ( postFinder ) {
          // Get the final matcherOut by condensing this intermediate into postFinder contexts
          temp = [];
          i = matcherOut.length;
          while ( i-- ) {
            if ( (elem = matcherOut[i]) ) {
              // Restore matcherIn since elem is not yet a final match
              temp.push( (matcherIn[i] = elem) );
            }
          }
          postFinder( null, (matcherOut = []), temp, xml );
        }

        // Move matched elements from seed to results to keep them synchronized
        i = matcherOut.length;
        while ( i-- ) {
          if ( (elem = matcherOut[i]) &&
            (temp = postFinder ? indexOf( seed, elem ) : preMap[i]) > -1 ) {

            seed[temp] = !(results[temp] = elem);
          }
        }
      }

    // Add elements to results, through postFinder if defined
    } else {
      matcherOut = condense(
        matcherOut === results ?
          matcherOut.splice( preexisting, matcherOut.length ) :
          matcherOut
      );
      if ( postFinder ) {
        postFinder( null, results, matcherOut, xml );
      } else {
        push.apply( results, matcherOut );
      }
    }
  });
}

function matcherFromTokens( tokens ) {
  var checkContext, matcher, j,
    len = tokens.length,
    leadingRelative = Expr.relative[ tokens[0].type ],
    implicitRelative = leadingRelative || Expr.relative[" "],
    i = leadingRelative ? 1 : 0,

    // The foundational matcher ensures that elements are reachable from top-level context(s)
    matchContext = addCombinator( function( elem ) {
      return elem === checkContext;
    }, implicitRelative, true ),
    matchAnyContext = addCombinator( function( elem ) {
      return indexOf( checkContext, elem ) > -1;
    }, implicitRelative, true ),
    matchers = [ function( elem, context, xml ) {
      var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
        (checkContext = context).nodeType ?
          matchContext( elem, context, xml ) :
          matchAnyContext( elem, context, xml ) );
      // Avoid hanging onto element (issue #299)
      checkContext = null;
      return ret;
    } ];

  for ( ; i < len; i++ ) {
    if ( (matcher = Expr.relative[ tokens[i].type ]) ) {
      matchers = [ addCombinator(elementMatcher( matchers ), matcher) ];
    } else {
      matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );

      // Return special upon seeing a positional matcher
      if ( matcher[ expando ] ) {
        // Find the next relative operator (if any) for proper handling
        j = ++i;
        for ( ; j < len; j++ ) {
          if ( Expr.relative[ tokens[j].type ] ) {
            break;
          }
        }
        return setMatcher(
          i > 1 && elementMatcher( matchers ),
          i > 1 && toSelector(
            // If the preceding token was a descendant combinator, insert an implicit any-element `*`
            tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" })
          ).replace( rtrim, "$1" ),
          matcher,
          i < j && matcherFromTokens( tokens.slice( i, j ) ),
          j < len && matcherFromTokens( (tokens = tokens.slice( j )) ),
          j < len && toSelector( tokens )
        );
      }
      matchers.push( matcher );
    }
  }

  return elementMatcher( matchers );
}

function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
  var bySet = setMatchers.length > 0,
    byElement = elementMatchers.length > 0,
    superMatcher = function( seed, context, xml, results, outermost ) {
      var elem, j, matcher,
        matchedCount = 0,
        i = "0",
        unmatched = seed && [],
        setMatched = [],
        contextBackup = outermostContext,
        // We must always have either seed elements or outermost context
        elems = seed || byElement && Expr.find["TAG"]( "*", outermost ),
        // Use integer dirruns iff this is the outermost matcher
        dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1),
        len = elems.length;

      if ( outermost ) {
        outermostContext = context !== document && context;
      }

      // Add elements passing elementMatchers directly to results
      // Keep `i` a string if there are no elements so `matchedCount` will be "00" below
      // Support: IE<9, Safari
      // Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id
      for ( ; i !== len && (elem = elems[i]) != null; i++ ) {
        if ( byElement && elem ) {
          j = 0;
          while ( (matcher = elementMatchers[j++]) ) {
            if ( matcher( elem, context, xml ) ) {
              results.push( elem );
              break;
            }
          }
          if ( outermost ) {
            dirruns = dirrunsUnique;
          }
        }

        // Track unmatched elements for set filters
        if ( bySet ) {
          // They will have gone through all possible matchers
          if ( (elem = !matcher && elem) ) {
            matchedCount--;
          }

          // Lengthen the array for every element, matched or not
          if ( seed ) {
            unmatched.push( elem );
          }
        }
      }

      // Apply set filters to unmatched elements
      matchedCount += i;
      if ( bySet && i !== matchedCount ) {
        j = 0;
        while ( (matcher = setMatchers[j++]) ) {
          matcher( unmatched, setMatched, context, xml );
        }

        if ( seed ) {
          // Reintegrate element matches to eliminate the need for sorting
          if ( matchedCount > 0 ) {
            while ( i-- ) {
              if ( !(unmatched[i] || setMatched[i]) ) {
                setMatched[i] = pop.call( results );
              }
            }
          }

          // Discard index placeholder values to get only actual matches
          setMatched = condense( setMatched );
        }

        // Add matches to results
        push.apply( results, setMatched );

        // Seedless set matches succeeding multiple successful matchers stipulate sorting
        if ( outermost && !seed && setMatched.length > 0 &&
          ( matchedCount + setMatchers.length ) > 1 ) {

          Sizzle.uniqueSort( results );
        }
      }

      // Override manipulation of globals by nested matchers
      if ( outermost ) {
        dirruns = dirrunsUnique;
        outermostContext = contextBackup;
      }

      return unmatched;
    };

  return bySet ?
    markFunction( superMatcher ) :
    superMatcher;
}

compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) {
  var i,
    setMatchers = [],
    elementMatchers = [],
    cached = compilerCache[ selector + " " ];

  if ( !cached ) {
    // Generate a function of recursive functions that can be used to check each element
    if ( !match ) {
      match = tokenize( selector );
    }
    i = match.length;
    while ( i-- ) {
      cached = matcherFromTokens( match[i] );
      if ( cached[ expando ] ) {
        setMatchers.push( cached );
      } else {
        elementMatchers.push( cached );
      }
    }

    // Cache the compiled function
    cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );

    // Save selector and tokenization
    cached.selector = selector;
  }
  return cached;
};

/**
 * A low-level selection function that works with Sizzle's compiled
 *  selector functions
 * @param {String|Function} selector A selector or a pre-compiled
 *  selector function built with Sizzle.compile
 * @param {Element} context
 * @param {Array} [results]
 * @param {Array} [seed] A set of elements to match against
 */
select = Sizzle.select = function( selector, context, results, seed ) {
  var i, tokens, token, type, find,
    compiled = typeof selector === "function" && selector,
    match = !seed && tokenize( (selector = compiled.selector || selector) );

  results = results || [];

  // Try to minimize operations if there is no seed and only one group
  if ( match.length === 1 ) {

    // Take a shortcut and set the context if the root selector is an ID
    tokens = match[0] = match[0].slice( 0 );
    if ( tokens.length > 2 && (token = tokens[0]).type === "ID" &&
        support.getById && context.nodeType === 9 && documentIsHTML &&
        Expr.relative[ tokens[1].type ] ) {

      context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0];
      if ( !context ) {
        return results;

      // Precompiled matchers will still verify ancestry, so step up a level
      } else if ( compiled ) {
        context = context.parentNode;
      }

      selector = selector.slice( tokens.shift().value.length );
    }

    // Fetch a seed set for right-to-left matching
    i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length;
    while ( i-- ) {
      token = tokens[i];

      // Abort if we hit a combinator
      if ( Expr.relative[ (type = token.type) ] ) {
        break;
      }
      if ( (find = Expr.find[ type ]) ) {
        // Search, expanding context for leading sibling combinators
        if ( (seed = find(
          token.matches[0].replace( runescape, funescape ),
          rsibling.test( tokens[0].type ) && testContext( context.parentNode ) || context
        )) ) {

          // If seed is empty or no tokens remain, we can return early
          tokens.splice( i, 1 );
          selector = seed.length && toSelector( tokens );
          if ( !selector ) {
            push.apply( results, seed );
            return results;
          }

          break;
        }
      }
    }
  }

  // Compile and execute a filtering function if one is not provided
  // Provide `match` to avoid retokenization if we modified the selector above
  ( compiled || compile( selector, match ) )(
    seed,
    context,
    !documentIsHTML,
    results,
    rsibling.test( selector ) && testContext( context.parentNode ) || context
  );
  return results;
};

// One-time assignments

// Sort stability
support.sortStable = expando.split("").sort( sortOrder ).join("") === expando;

// Support: Chrome 14-35+
// Always assume duplicates if they aren't passed to the comparison function
support.detectDuplicates = !!hasDuplicate;

// Initialize against the default document
setDocument();

// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
// Detached nodes confoundingly follow *each other*
support.sortDetached = assert(function( div1 ) {
  // Should return 1, but returns 4 (following)
  return div1.compareDocumentPosition( document.createElement("div") ) & 1;
});

// Support: IE<8
// Prevent attribute/property "interpolation"
// https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
if ( !assert(function( div ) {
  div.innerHTML = "<a href='#'></a>";
  return div.firstChild.getAttribute("href") === "#" ;
}) ) {
  addHandle( "type|href|height|width", function( elem, name, isXML ) {
    if ( !isXML ) {
      return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );
    }
  });
}

// Support: IE<9
// Use defaultValue in place of getAttribute("value")
if ( !support.attributes || !assert(function( div ) {
  div.innerHTML = "<input/>";
  div.firstChild.setAttribute( "value", "" );
  return div.firstChild.getAttribute( "value" ) === "";
}) ) {
  addHandle( "value", function( elem, name, isXML ) {
    if ( !isXML && elem.nodeName.toLowerCase() === "input" ) {
      return elem.defaultValue;
    }
  });
}

// Support: IE<9
// Use getAttributeNode to fetch booleans when getAttribute lies
if ( !assert(function( div ) {
  return div.getAttribute("disabled") == null;
}) ) {
  addHandle( booleans, function( elem, name, isXML ) {
    var val;
    if ( !isXML ) {
      return elem[ name ] === true ? name.toLowerCase() :
          (val = elem.getAttributeNode( name )) && val.specified ?
          val.value :
        null;
    }
  });
}

return Sizzle;

})( window );



jQuery.find = Sizzle;
jQuery.expr = Sizzle.selectors;
jQuery.expr[":"] = jQuery.expr.pseudos;
jQuery.unique = Sizzle.uniqueSort;
jQuery.text = Sizzle.getText;
jQuery.isXMLDoc = Sizzle.isXML;
jQuery.contains = Sizzle.contains;



var rneedsContext = jQuery.expr.match.needsContext;

var rsingleTag = (/^<(\w+)\s*\/?>(?:<\/\1>|)$/);



var risSimple = /^.[^:#\[\.,]*$/;

// Implement the identical functionality for filter and not
function winnow( elements, qualifier, not ) {
  if ( jQuery.isFunction( qualifier ) ) {
    return jQuery.grep( elements, function( elem, i ) {
      /* jshint -W018 */
      return !!qualifier.call( elem, i, elem ) !== not;
    });

  }

  if ( qualifier.nodeType ) {
    return jQuery.grep( elements, function( elem ) {
      return ( elem === qualifier ) !== not;
    });

  }

  if ( typeof qualifier === "string" ) {
    if ( risSimple.test( qualifier ) ) {
      return jQuery.filter( qualifier, elements, not );
    }

    qualifier = jQuery.filter( qualifier, elements );
  }

  return jQuery.grep( elements, function( elem ) {
    return ( indexOf.call( qualifier, elem ) >= 0 ) !== not;
  });
}

jQuery.filter = function( expr, elems, not ) {
  var elem = elems[ 0 ];

  if ( not ) {
    expr = ":not(" + expr + ")";
  }

  return elems.length === 1 && elem.nodeType === 1 ?
    jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [] :
    jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
      return elem.nodeType === 1;
    }));
};

jQuery.fn.extend({
  find: function( selector ) {
    var i,
      len = this.length,
      ret = [],
      self = this;

    if ( typeof selector !== "string" ) {
      return this.pushStack( jQuery( selector ).filter(function() {
        for ( i = 0; i < len; i++ ) {
          if ( jQuery.contains( self[ i ], this ) ) {
            return true;
          }
        }
      }) );
    }

    for ( i = 0; i < len; i++ ) {
      jQuery.find( selector, self[ i ], ret );
    }

    // Needed because $( selector, context ) becomes $( context ).find( selector )
    ret = this.pushStack( len > 1 ? jQuery.unique( ret ) : ret );
    ret.selector = this.selector ? this.selector + " " + selector : selector;
    return ret;
  },
  filter: function( selector ) {
    return this.pushStack( winnow(this, selector || [], false) );
  },
  not: function( selector ) {
    return this.pushStack( winnow(this, selector || [], true) );
  },
  is: function( selector ) {
    return !!winnow(
      this,

      // If this is a positional/relative selector, check membership in the returned set
      // so $("p:first").is("p:last") won't return true for a doc with two "p".
      typeof selector === "string" && rneedsContext.test( selector ) ?
        jQuery( selector ) :
        selector || [],
      false
    ).length;
  }
});


// Initialize a jQuery object


// A central reference to the root jQuery(document)
var rootjQuery,

  // A simple way to check for HTML strings
  // Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
  // Strict HTML recognition (#11290: must start with <)
  rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]*))$/,

  init = jQuery.fn.init = function( selector, context ) {
    var match, elem;

    // HANDLE: $(""), $(null), $(undefined), $(false)
    if ( !selector ) {
      return this;
    }

    // Handle HTML strings
    if ( typeof selector === "string" ) {
      if ( selector[0] === "<" && selector[ selector.length - 1 ] === ">" && selector.length >= 3 ) {
        // Assume that strings that start and end with <> are HTML and skip the regex check
        match = [ null, selector, null ];

      } else {
        match = rquickExpr.exec( selector );
      }

      // Match html or make sure no context is specified for #id
      if ( match && (match[1] || !context) ) {

        // HANDLE: $(html) -> $(array)
        if ( match[1] ) {
          context = context instanceof jQuery ? context[0] : context;

          // Option to run scripts is true for back-compat
          // Intentionally let the error be thrown if parseHTML is not present
          jQuery.merge( this, jQuery.parseHTML(
            match[1],
            context && context.nodeType ? context.ownerDocument || context : document,
            true
          ) );

          // HANDLE: $(html, props)
          if ( rsingleTag.test( match[1] ) && jQuery.isPlainObject( context ) ) {
            for ( match in context ) {
              // Properties of context are called as methods if possible
              if ( jQuery.isFunction( this[ match ] ) ) {
                this[ match ]( context[ match ] );

              // ...and otherwise set as attributes
              } else {
                this.attr( match, context[ match ] );
              }
            }
          }

          return this;

        // HANDLE: $(#id)
        } else {
          elem = document.getElementById( match[2] );

          // Support: Blackberry 4.6
          // gEBID returns nodes no longer in the document (#6963)
          if ( elem && elem.parentNode ) {
            // Inject the element directly into the jQuery object
            this.length = 1;
            this[0] = elem;
          }

          this.context = document;
          this.selector = selector;
          return this;
        }

      // HANDLE: $(expr, $(...))
      } else if ( !context || context.jquery ) {
        return ( context || rootjQuery ).find( selector );

      // HANDLE: $(expr, context)
      // (which is just equivalent to: $(context).find(expr)
      } else {
        return this.constructor( context ).find( selector );
      }

    // HANDLE: $(DOMElement)
    } else if ( selector.nodeType ) {
      this.context = this[0] = selector;
      this.length = 1;
      return this;

    // HANDLE: $(function)
    // Shortcut for document ready
    } else if ( jQuery.isFunction( selector ) ) {
      return typeof rootjQuery.ready !== "undefined" ?
        rootjQuery.ready( selector ) :
        // Execute immediately if ready is not present
        selector( jQuery );
    }

    if ( selector.selector !== undefined ) {
      this.selector = selector.selector;
      this.context = selector.context;
    }

    return jQuery.makeArray( selector, this );
  };

// Give the init function the jQuery prototype for later instantiation
init.prototype = jQuery.fn;

// Initialize central reference
rootjQuery = jQuery( document );


var rparentsprev = /^(?:parents|prev(?:Until|All))/,
  // Methods guaranteed to produce a unique set when starting from a unique set
  guaranteedUnique = {
    children: true,
    contents: true,
    next: true,
    prev: true
  };

jQuery.extend({
  dir: function( elem, dir, until ) {
    var matched = [],
      truncate = until !== undefined;

    while ( (elem = elem[ dir ]) && elem.nodeType !== 9 ) {
      if ( elem.nodeType === 1 ) {
        if ( truncate && jQuery( elem ).is( until ) ) {
          break;
        }
        matched.push( elem );
      }
    }
    return matched;
  },

  sibling: function( n, elem ) {
    var matched = [];

    for ( ; n; n = n.nextSibling ) {
      if ( n.nodeType === 1 && n !== elem ) {
        matched.push( n );
      }
    }

    return matched;
  }
});

jQuery.fn.extend({
  has: function( target ) {
    var targets = jQuery( target, this ),
      l = targets.length;

    return this.filter(function() {
      var i = 0;
      for ( ; i < l; i++ ) {
        if ( jQuery.contains( this, targets[i] ) ) {
          return true;
        }
      }
    });
  },

  closest: function( selectors, context ) {
    var cur,
      i = 0,
      l = this.length,
      matched = [],
      pos = rneedsContext.test( selectors ) || typeof selectors !== "string" ?
        jQuery( selectors, context || this.context ) :
        0;

    for ( ; i < l; i++ ) {
      for ( cur = this[i]; cur && cur !== context; cur = cur.parentNode ) {
        // Always skip document fragments
        if ( cur.nodeType < 11 && (pos ?
          pos.index(cur) > -1 :

          // Don't pass non-elements to Sizzle
          cur.nodeType === 1 &&
            jQuery.find.matchesSelector(cur, selectors)) ) {

          matched.push( cur );
          break;
        }
      }
    }

    return this.pushStack( matched.length > 1 ? jQuery.unique( matched ) : matched );
  },

  // Determine the position of an element within the set
  index: function( elem ) {

    // No argument, return index in parent
    if ( !elem ) {
      return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1;
    }

    // Index in selector
    if ( typeof elem === "string" ) {
      return indexOf.call( jQuery( elem ), this[ 0 ] );
    }

    // Locate the position of the desired element
    return indexOf.call( this,

      // If it receives a jQuery object, the first element is used
      elem.jquery ? elem[ 0 ] : elem
    );
  },

  add: function( selector, context ) {
    return this.pushStack(
      jQuery.unique(
        jQuery.merge( this.get(), jQuery( selector, context ) )
      )
    );
  },

  addBack: function( selector ) {
    return this.add( selector == null ?
      this.prevObject : this.prevObject.filter(selector)
    );
  }
});

function sibling( cur, dir ) {
  while ( (cur = cur[dir]) && cur.nodeType !== 1 ) {}
  return cur;
}

jQuery.each({
  parent: function( elem ) {
    var parent = elem.parentNode;
    return parent && parent.nodeType !== 11 ? parent : null;
  },
  parents: function( elem ) {
    return jQuery.dir( elem, "parentNode" );
  },
  parentsUntil: function( elem, i, until ) {
    return jQuery.dir( elem, "parentNode", until );
  },
  next: function( elem ) {
    return sibling( elem, "nextSibling" );
  },
  prev: function( elem ) {
    return sibling( elem, "previousSibling" );
  },
  nextAll: function( elem ) {
    return jQuery.dir( elem, "nextSibling" );
  },
  prevAll: function( elem ) {
    return jQuery.dir( elem, "previousSibling" );
  },
  nextUntil: function( elem, i, until ) {
    return jQuery.dir( elem, "nextSibling", until );
  },
  prevUntil: function( elem, i, until ) {
    return jQuery.dir( elem, "previousSibling", until );
  },
  siblings: function( elem ) {
    return jQuery.sibling( ( elem.parentNode || {} ).firstChild, elem );
  },
  children: function( elem ) {
    return jQuery.sibling( elem.firstChild );
  },
  contents: function( elem ) {
    return elem.contentDocument || jQuery.merge( [], elem.childNodes );
  }
}, function( name, fn ) {
  jQuery.fn[ name ] = function( until, selector ) {
    var matched = jQuery.map( this, fn, until );

    if ( name.slice( -5 ) !== "Until" ) {
      selector = until;
    }

    if ( selector && typeof selector === "string" ) {
      matched = jQuery.filter( selector, matched );
    }

    if ( this.length > 1 ) {
      // Remove duplicates
      if ( !guaranteedUnique[ name ] ) {
        jQuery.unique( matched );
      }

      // Reverse order for parents* and prev-derivatives
      if ( rparentsprev.test( name ) ) {
        matched.reverse();
      }
    }

    return this.pushStack( matched );
  };
});
var rnotwhite = (/\S+/g);



// String to Object options format cache
var optionsCache = {};

// Convert String-formatted options into Object-formatted ones and store in cache
function createOptions( options ) {
  var object = optionsCache[ options ] = {};
  jQuery.each( options.match( rnotwhite ) || [], function( _, flag ) {
    object[ flag ] = true;
  });
  return object;
}

/*
 * Create a callback list using the following parameters:
 *
 *  options: an optional list of space-separated options that will change how
 *      the callback list behaves or a more traditional option object
 *
 * By default a callback list will act like an event callback list and can be
 * "fired" multiple times.
 *
 * Possible options:
 *
 *  once:     will ensure the callback list can only be fired once (like a Deferred)
 *
 *  memory:     will keep track of previous values and will call any callback added
 *          after the list has been fired right away with the latest "memorized"
 *          values (like a Deferred)
 *
 *  unique:     will ensure a callback can only be added once (no duplicate in the list)
 *
 *  stopOnFalse:  interrupt callings when a callback returns false
 *
 */
jQuery.Callbacks = function( options ) {

  // Convert options from String-formatted to Object-formatted if needed
  // (we check in cache first)
  options = typeof options === "string" ?
    ( optionsCache[ options ] || createOptions( options ) ) :
    jQuery.extend( {}, options );

  var // Last fire value (for non-forgettable lists)
    memory,
    // Flag to know if list was already fired
    fired,
    // Flag to know if list is currently firing
    firing,
    // First callback to fire (used internally by add and fireWith)
    firingStart,
    // End of the loop when firing
    firingLength,
    // Index of currently firing callback (modified by remove if needed)
    firingIndex,
    // Actual callback list
    list = [],
    // Stack of fire calls for repeatable lists
    stack = !options.once && [],
    // Fire callbacks
    fire = function( data ) {
      memory = options.memory && data;
      fired = true;
      firingIndex = firingStart || 0;
      firingStart = 0;
      firingLength = list.length;
      firing = true;
      for ( ; list && firingIndex < firingLength; firingIndex++ ) {
        if ( list[ firingIndex ].apply( data[ 0 ], data[ 1 ] ) === false && options.stopOnFalse ) {
          memory = false; // To prevent further calls using add
          break;
        }
      }
      firing = false;
      if ( list ) {
        if ( stack ) {
          if ( stack.length ) {
            fire( stack.shift() );
          }
        } else if ( memory ) {
          list = [];
        } else {
          self.disable();
        }
      }
    },
    // Actual Callbacks object
    self = {
      // Add a callback or a collection of callbacks to the list
      add: function() {
        if ( list ) {
          // First, we save the current length
          var start = list.length;
          (function add( args ) {
            jQuery.each( args, function( _, arg ) {
              var type = jQuery.type( arg );
              if ( type === "function" ) {
                if ( !options.unique || !self.has( arg ) ) {
                  list.push( arg );
                }
              } else if ( arg && arg.length && type !== "string" ) {
                // Inspect recursively
                add( arg );
              }
            });
          })( arguments );
          // Do we need to add the callbacks to the
          // current firing batch?
          if ( firing ) {
            firingLength = list.length;
          // With memory, if we're not firing then
          // we should call right away
          } else if ( memory ) {
            firingStart = start;
            fire( memory );
          }
        }
        return this;
      },
      // Remove a callback from the list
      remove: function() {
        if ( list ) {
          jQuery.each( arguments, function( _, arg ) {
            var index;
            while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
              list.splice( index, 1 );
              // Handle firing indexes
              if ( firing ) {
                if ( index <= firingLength ) {
                  firingLength--;
                }
                if ( index <= firingIndex ) {
                  firingIndex--;
                }
              }
            }
          });
        }
        return this;
      },
      // Check if a given callback is in the list.
      // If no argument is given, return whether or not list has callbacks attached.
      has: function( fn ) {
        return fn ? jQuery.inArray( fn, list ) > -1 : !!( list && list.length );
      },
      // Remove all callbacks from the list
      empty: function() {
        list = [];
        firingLength = 0;
        return this;
      },
      // Have the list do nothing anymore
      disable: function() {
        list = stack = memory = undefined;
        return this;
      },
      // Is it disabled?
      disabled: function() {
        return !list;
      },
      // Lock the list in its current state
      lock: function() {
        stack = undefined;
        if ( !memory ) {
          self.disable();
        }
        return this;
      },
      // Is it locked?
      locked: function() {
        return !stack;
      },
      // Call all callbacks with the given context and arguments
      fireWith: function( context, args ) {
        if ( list && ( !fired || stack ) ) {
          args = args || [];
          args = [ context, args.slice ? args.slice() : args ];
          if ( firing ) {
            stack.push( args );
          } else {
            fire( args );
          }
        }
        return this;
      },
      // Call all the callbacks with the given arguments
      fire: function() {
        self.fireWith( this, arguments );
        return this;
      },
      // To know if the callbacks have already been called at least once
      fired: function() {
        return !!fired;
      }
    };

  return self;
};


jQuery.extend({

  Deferred: function( func ) {
    var tuples = [
        // action, add listener, listener list, final state
        [ "resolve", "done", jQuery.Callbacks("once memory"), "resolved" ],
        [ "reject", "fail", jQuery.Callbacks("once memory"), "rejected" ],
        [ "notify", "progress", jQuery.Callbacks("memory") ]
      ],
      state = "pending",
      promise = {
        state: function() {
          return state;
        },
        always: function() {
          deferred.done( arguments ).fail( arguments );
          return this;
        },
        then: function( /* fnDone, fnFail, fnProgress */ ) {
          var fns = arguments;
          return jQuery.Deferred(function( newDefer ) {
            jQuery.each( tuples, function( i, tuple ) {
              var fn = jQuery.isFunction( fns[ i ] ) && fns[ i ];
              // deferred[ done | fail | progress ] for forwarding actions to newDefer
              deferred[ tuple[1] ](function() {
                var returned = fn && fn.apply( this, arguments );
                if ( returned && jQuery.isFunction( returned.promise ) ) {
                  returned.promise()
                    .done( newDefer.resolve )
                    .fail( newDefer.reject )
                    .progress( newDefer.notify );
                } else {
                  newDefer[ tuple[ 0 ] + "With" ]( this === promise ? newDefer.promise() : this, fn ? [ returned ] : arguments );
                }
              });
            });
            fns = null;
          }).promise();
        },
        // Get a promise for this deferred
        // If obj is provided, the promise aspect is added to the object
        promise: function( obj ) {
          return obj != null ? jQuery.extend( obj, promise ) : promise;
        }
      },
      deferred = {};

    // Keep pipe for back-compat
    promise.pipe = promise.then;

    // Add list-specific methods
    jQuery.each( tuples, function( i, tuple ) {
      var list = tuple[ 2 ],
        stateString = tuple[ 3 ];

      // promise[ done | fail | progress ] = list.add
      promise[ tuple[1] ] = list.add;

      // Handle state
      if ( stateString ) {
        list.add(function() {
          // state = [ resolved | rejected ]
          state = stateString;

        // [ reject_list | resolve_list ].disable; progress_list.lock
        }, tuples[ i ^ 1 ][ 2 ].disable, tuples[ 2 ][ 2 ].lock );
      }

      // deferred[ resolve | reject | notify ]
      deferred[ tuple[0] ] = function() {
        deferred[ tuple[0] + "With" ]( this === deferred ? promise : this, arguments );
        return this;
      };
      deferred[ tuple[0] + "With" ] = list.fireWith;
    });

    // Make the deferred a promise
    promise.promise( deferred );

    // Call given func if any
    if ( func ) {
      func.call( deferred, deferred );
    }

    // All done!
    return deferred;
  },

  // Deferred helper
  when: function( subordinate /* , ..., subordinateN */ ) {
    var i = 0,
      resolveValues = slice.call( arguments ),
      length = resolveValues.length,

      // the count of uncompleted subordinates
      remaining = length !== 1 || ( subordinate && jQuery.isFunction( subordinate.promise ) ) ? length : 0,

      // the master Deferred. If resolveValues consist of only a single Deferred, just use that.
      deferred = remaining === 1 ? subordinate : jQuery.Deferred(),

      // Update function for both resolve and progress values
      updateFunc = function( i, contexts, values ) {
        return function( value ) {
          contexts[ i ] = this;
          values[ i ] = arguments.length > 1 ? slice.call( arguments ) : value;
          if ( values === progressValues ) {
            deferred.notifyWith( contexts, values );
          } else if ( !( --remaining ) ) {
            deferred.resolveWith( contexts, values );
          }
        };
      },

      progressValues, progressContexts, resolveContexts;

    // Add listeners to Deferred subordinates; treat others as resolved
    if ( length > 1 ) {
      progressValues = new Array( length );
      progressContexts = new Array( length );
      resolveContexts = new Array( length );
      for ( ; i < length; i++ ) {
        if ( resolveValues[ i ] && jQuery.isFunction( resolveValues[ i ].promise ) ) {
          resolveValues[ i ].promise()
            .done( updateFunc( i, resolveContexts, resolveValues ) )
            .fail( deferred.reject )
            .progress( updateFunc( i, progressContexts, progressValues ) );
        } else {
          --remaining;
        }
      }
    }

    // If we're not waiting on anything, resolve the master
    if ( !remaining ) {
      deferred.resolveWith( resolveContexts, resolveValues );
    }

    return deferred.promise();
  }
});


// The deferred used on DOM ready
var readyList;

jQuery.fn.ready = function( fn ) {
  // Add the callback
  jQuery.ready.promise().done( fn );

  return this;
};

jQuery.extend({
  // Is the DOM ready to be used? Set to true once it occurs.
  isReady: false,

  // A counter to track how many items to wait for before
  // the ready event fires. See #6781
  readyWait: 1,

  // Hold (or release) the ready event
  holdReady: function( hold ) {
    if ( hold ) {
      jQuery.readyWait++;
    } else {
      jQuery.ready( true );
    }
  },

  // Handle when the DOM is ready
  ready: function( wait ) {

    // Abort if there are pending holds or we're already ready
    if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
      return;
    }

    // Remember that the DOM is ready
    jQuery.isReady = true;

    // If a normal DOM Ready event fired, decrement, and wait if need be
    if ( wait !== true && --jQuery.readyWait > 0 ) {
      return;
    }

    // If there are functions bound, to execute
    readyList.resolveWith( document, [ jQuery ] );

    // Trigger any bound ready events
    if ( jQuery.fn.triggerHandler ) {
      jQuery( document ).triggerHandler( "ready" );
      jQuery( document ).off( "ready" );
    }
  }
});

/**
 * The ready event handler and self cleanup method
 */
function completed() {
  document.removeEventListener( "DOMContentLoaded", completed, false );
  window.removeEventListener( "load", completed, false );
  jQuery.ready();
}

jQuery.ready.promise = function( obj ) {
  if ( !readyList ) {

    readyList = jQuery.Deferred();

    // Catch cases where $(document).ready() is called after the browser event has already occurred.
    // We once tried to use readyState "interactive" here, but it caused issues like the one
    // discovered by ChrisS here: https://bugs.jquery.com/ticket/12282#comment:15
    if ( document.readyState === "complete" ) {
      // Handle it asynchronously to allow scripts the opportunity to delay ready
      setTimeout( jQuery.ready );

    } else {

      // Use the handy event callback
      document.addEventListener( "DOMContentLoaded", completed, false );

      // A fallback to window.onload, that will always work
      window.addEventListener( "load", completed, false );
    }
  }
  return readyList.promise( obj );
};

// Kick off the DOM ready check even if the user does not
jQuery.ready.promise();




// Multifunctional method to get and set values of a collection
// The value/s can optionally be executed if it's a function
var access = jQuery.access = function( elems, fn, key, value, chainable, emptyGet, raw ) {
  var i = 0,
    len = elems.length,
    bulk = key == null;

  // Sets many values
  if ( jQuery.type( key ) === "object" ) {
    chainable = true;
    for ( i in key ) {
      jQuery.access( elems, fn, i, key[i], true, emptyGet, raw );
    }

  // Sets one value
  } else if ( value !== undefined ) {
    chainable = true;

    if ( !jQuery.isFunction( value ) ) {
      raw = true;
    }

    if ( bulk ) {
      // Bulk operations run against the entire set
      if ( raw ) {
        fn.call( elems, value );
        fn = null;

      // ...except when executing function values
      } else {
        bulk = fn;
        fn = function( elem, key, value ) {
          return bulk.call( jQuery( elem ), value );
        };
      }
    }

    if ( fn ) {
      for ( ; i < len; i++ ) {
        fn( elems[i], key, raw ? value : value.call( elems[i], i, fn( elems[i], key ) ) );
      }
    }
  }

  return chainable ?
    elems :

    // Gets
    bulk ?
      fn.call( elems ) :
      len ? fn( elems[0], key ) : emptyGet;
};


/**
 * Determines whether an object can have data
 */
jQuery.acceptData = function( owner ) {
  // Accepts only:
  //  - Node
  //    - Node.ELEMENT_NODE
  //    - Node.DOCUMENT_NODE
  //  - Object
  //    - Any
  /* jshint -W018 */
  return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType );
};


function Data() {
  // Support: Android<4,
  // Old WebKit does not have Object.preventExtensions/freeze method,
  // return new empty object instead with no [[set]] accessor
  Object.defineProperty( this.cache = {}, 0, {
    get: function() {
      return {};
    }
  });

  this.expando = jQuery.expando + Data.uid++;
}

Data.uid = 1;
Data.accepts = jQuery.acceptData;

Data.prototype = {
  key: function( owner ) {
    // We can accept data for non-element nodes in modern browsers,
    // but we should not, see #8335.
    // Always return the key for a frozen object.
    if ( !Data.accepts( owner ) ) {
      return 0;
    }

    var descriptor = {},
      // Check if the owner object already has a cache key
      unlock = owner[ this.expando ];

    // If not, create one
    if ( !unlock ) {
      unlock = Data.uid++;

      // Secure it in a non-enumerable, non-writable property
      try {
        descriptor[ this.expando ] = { value: unlock };
        Object.defineProperties( owner, descriptor );

      // Support: Android<4
      // Fallback to a less secure definition
      } catch ( e ) {
        descriptor[ this.expando ] = unlock;
        jQuery.extend( owner, descriptor );
      }
    }

    // Ensure the cache object
    if ( !this.cache[ unlock ] ) {
      this.cache[ unlock ] = {};
    }

    return unlock;
  },
  set: function( owner, data, value ) {
    var prop,
      // There may be an unlock assigned to this node,
      // if there is no entry for this "owner", create one inline
      // and set the unlock as though an owner entry had always existed
      unlock = this.key( owner ),
      cache = this.cache[ unlock ];

    // Handle: [ owner, key, value ] args
    if ( typeof data === "string" ) {
      cache[ data ] = value;

    // Handle: [ owner, { properties } ] args
    } else {
      // Fresh assignments by object are shallow copied
      if ( jQuery.isEmptyObject( cache ) ) {
        jQuery.extend( this.cache[ unlock ], data );
      // Otherwise, copy the properties one-by-one to the cache object
      } else {
        for ( prop in data ) {
          cache[ prop ] = data[ prop ];
        }
      }
    }
    return cache;
  },
  get: function( owner, key ) {
    // Either a valid cache is found, or will be created.
    // New caches will be created and the unlock returned,
    // allowing direct access to the newly created
    // empty data object. A valid owner object must be provided.
    var cache = this.cache[ this.key( owner ) ];

    return key === undefined ?
      cache : cache[ key ];
  },
  access: function( owner, key, value ) {
    var stored;
    // In cases where either:
    //
    //   1. No key was specified
    //   2. A string key was specified, but no value provided
    //
    // Take the "read" path and allow the get method to determine
    // which value to return, respectively either:
    //
    //   1. The entire cache object
    //   2. The data stored at the key
    //
    if ( key === undefined ||
        ((key && typeof key === "string") && value === undefined) ) {

      stored = this.get( owner, key );

      return stored !== undefined ?
        stored : this.get( owner, jQuery.camelCase(key) );
    }

    // [*]When the key is not a string, or both a key and value
    // are specified, set or extend (existing objects) with either:
    //
    //   1. An object of properties
    //   2. A key and value
    //
    this.set( owner, key, value );

    // Since the "set" path can have two possible entry points
    // return the expected data based on which path was taken[*]
    return value !== undefined ? value : key;
  },
  remove: function( owner, key ) {
    var i, name, camel,
      unlock = this.key( owner ),
      cache = this.cache[ unlock ];

    if ( key === undefined ) {
      this.cache[ unlock ] = {};

    } else {
      // Support array or space separated string of keys
      if ( jQuery.isArray( key ) ) {
        // If "name" is an array of keys...
        // When data is initially created, via ("key", "val") signature,
        // keys will be converted to camelCase.
        // Since there is no way to tell _how_ a key was added, remove
        // both plain key and camelCase key. #12786
        // This will only penalize the array argument path.
        name = key.concat( key.map( jQuery.camelCase ) );
      } else {
        camel = jQuery.camelCase( key );
        // Try the string as a key before any manipulation
        if ( key in cache ) {
          name = [ key, camel ];
        } else {
          // If a key with the spaces exists, use it.
          // Otherwise, create an array by matching non-whitespace
          name = camel;
          name = name in cache ?
            [ name ] : ( name.match( rnotwhite ) || [] );
        }
      }

      i = name.length;
      while ( i-- ) {
        delete cache[ name[ i ] ];
      }
    }
  },
  hasData: function( owner ) {
    return !jQuery.isEmptyObject(
      this.cache[ owner[ this.expando ] ] || {}
    );
  },
  discard: function( owner ) {
    if ( owner[ this.expando ] ) {
      delete this.cache[ owner[ this.expando ] ];
    }
  }
};
var data_priv = new Data();

var data_user = new Data();



//  Implementation Summary
//
//  1. Enforce API surface and semantic compatibility with 1.9.x branch
//  2. Improve the module's maintainability by reducing the storage
//    paths to a single mechanism.
//  3. Use the same single mechanism to support "private" and "user" data.
//  4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData)
//  5. Avoid exposing implementation details on user objects (eg. expando properties)
//  6. Provide a clear path for implementation upgrade to WeakMap in 2014

var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/,
  rmultiDash = /([A-Z])/g;

function dataAttr( elem, key, data ) {
  var name;

  // If nothing was found internally, try to fetch any
  // data from the HTML5 data-* attribute
  if ( data === undefined && elem.nodeType === 1 ) {
    name = "data-" + key.replace( rmultiDash, "-$1" ).toLowerCase();
    data = elem.getAttribute( name );

    if ( typeof data === "string" ) {
      try {
        data = data === "true" ? true :
          data === "false" ? false :
          data === "null" ? null :
          // Only convert to a number if it doesn't change the string
          +data + "" === data ? +data :
          rbrace.test( data ) ? jQuery.parseJSON( data ) :
          data;
      } catch( e ) {}

      // Make sure we set the data so it isn't changed later
      data_user.set( elem, key, data );
    } else {
      data = undefined;
    }
  }
  return data;
}

jQuery.extend({
  hasData: function( elem ) {
    return data_user.hasData( elem ) || data_priv.hasData( elem );
  },

  data: function( elem, name, data ) {
    return data_user.access( elem, name, data );
  },

  removeData: function( elem, name ) {
    data_user.remove( elem, name );
  },

  // TODO: Now that all calls to _data and _removeData have been replaced
  // with direct calls to data_priv methods, these can be deprecated.
  _data: function( elem, name, data ) {
    return data_priv.access( elem, name, data );
  },

  _removeData: function( elem, name ) {
    data_priv.remove( elem, name );
  }
});

jQuery.fn.extend({
  data: function( key, value ) {
    var i, name, data,
      elem = this[ 0 ],
      attrs = elem && elem.attributes;

    // Gets all values
    if ( key === undefined ) {
      if ( this.length ) {
        data = data_user.get( elem );

        if ( elem.nodeType === 1 && !data_priv.get( elem, "hasDataAttrs" ) ) {
          i = attrs.length;
          while ( i-- ) {

            // Support: IE11+
            // The attrs elements can be null (#14894)
            if ( attrs[ i ] ) {
              name = attrs[ i ].name;
              if ( name.indexOf( "data-" ) === 0 ) {
                name = jQuery.camelCase( name.slice(5) );
                dataAttr( elem, name, data[ name ] );
              }
            }
          }
          data_priv.set( elem, "hasDataAttrs", true );
        }
      }

      return data;
    }

    // Sets multiple values
    if ( typeof key === "object" ) {
      return this.each(function() {
        data_user.set( this, key );
      });
    }

    return access( this, function( value ) {
      var data,
        camelKey = jQuery.camelCase( key );

      // The calling jQuery object (element matches) is not empty
      // (and therefore has an element appears at this[ 0 ]) and the
      // `value` parameter was not undefined. An empty jQuery object
      // will result in `undefined` for elem = this[ 0 ] which will
      // throw an exception if an attempt to read a data cache is made.
      if ( elem && value === undefined ) {
        // Attempt to get data from the cache
        // with the key as-is
        data = data_user.get( elem, key );
        if ( data !== undefined ) {
          return data;
        }

        // Attempt to get data from the cache
        // with the key camelized
        data = data_user.get( elem, camelKey );
        if ( data !== undefined ) {
          return data;
        }

        // Attempt to "discover" the data in
        // HTML5 custom data-* attrs
        data = dataAttr( elem, camelKey, undefined );
        if ( data !== undefined ) {
          return data;
        }

        // We tried really hard, but the data doesn't exist.
        return;
      }

      // Set the data...
      this.each(function() {
        // First, attempt to store a copy or reference of any
        // data that might've been store with a camelCased key.
        var data = data_user.get( this, camelKey );

        // For HTML5 data-* attribute interop, we have to
        // store property names with dashes in a camelCase form.
        // This might not apply to all properties...*
        data_user.set( this, camelKey, value );

        // *... In the case of properties that might _actually_
        // have dashes, we need to also store a copy of that
        // unchanged property.
        if ( key.indexOf("-") !== -1 && data !== undefined ) {
          data_user.set( this, key, value );
        }
      });
    }, null, value, arguments.length > 1, null, true );
  },

  removeData: function( key ) {
    return this.each(function() {
      data_user.remove( this, key );
    });
  }
});


jQuery.extend({
  queue: function( elem, type, data ) {
    var queue;

    if ( elem ) {
      type = ( type || "fx" ) + "queue";
      queue = data_priv.get( elem, type );

      // Speed up dequeue by getting out quickly if this is just a lookup
      if ( data ) {
        if ( !queue || jQuery.isArray( data ) ) {
          queue = data_priv.access( elem, type, jQuery.makeArray(data) );
        } else {
          queue.push( data );
        }
      }
      return queue || [];
    }
  },

  dequeue: function( elem, type ) {
    type = type || "fx";

    var queue = jQuery.queue( elem, type ),
      startLength = queue.length,
      fn = queue.shift(),
      hooks = jQuery._queueHooks( elem, type ),
      next = function() {
        jQuery.dequeue( elem, type );
      };

    // If the fx queue is dequeued, always remove the progress sentinel
    if ( fn === "inprogress" ) {
      fn = queue.shift();
      startLength--;
    }

    if ( fn ) {

      // Add a progress sentinel to prevent the fx queue from being
      // automatically dequeued
      if ( type === "fx" ) {
        queue.unshift( "inprogress" );
      }

      // Clear up the last queue stop function
      delete hooks.stop;
      fn.call( elem, next, hooks );
    }

    if ( !startLength && hooks ) {
      hooks.empty.fire();
    }
  },

  // Not public - generate a queueHooks object, or return the current one
  _queueHooks: function( elem, type ) {
    var key = type + "queueHooks";
    return data_priv.get( elem, key ) || data_priv.access( elem, key, {
      empty: jQuery.Callbacks("once memory").add(function() {
        data_priv.remove( elem, [ type + "queue", key ] );
      })
    });
  }
});

jQuery.fn.extend({
  queue: function( type, data ) {
    var setter = 2;

    if ( typeof type !== "string" ) {
      data = type;
      type = "fx";
      setter--;
    }

    if ( arguments.length < setter ) {
      return jQuery.queue( this[0], type );
    }

    return data === undefined ?
      this :
      this.each(function() {
        var queue = jQuery.queue( this, type, data );

        // Ensure a hooks for this queue
        jQuery._queueHooks( this, type );

        if ( type === "fx" && queue[0] !== "inprogress" ) {
          jQuery.dequeue( this, type );
        }
      });
  },
  dequeue: function( type ) {
    return this.each(function() {
      jQuery.dequeue( this, type );
    });
  },
  clearQueue: function( type ) {
    return this.queue( type || "fx", [] );
  },
  // Get a promise resolved when queues of a certain type
  // are emptied (fx is the type by default)
  promise: function( type, obj ) {
    var tmp,
      count = 1,
      defer = jQuery.Deferred(),
      elements = this,
      i = this.length,
      resolve = function() {
        if ( !( --count ) ) {
          defer.resolveWith( elements, [ elements ] );
        }
      };

    if ( typeof type !== "string" ) {
      obj = type;
      type = undefined;
    }
    type = type || "fx";

    while ( i-- ) {
      tmp = data_priv.get( elements[ i ], type + "queueHooks" );
      if ( tmp && tmp.empty ) {
        count++;
        tmp.empty.add( resolve );
      }
    }
    resolve();
    return defer.promise( obj );
  }
});
var pnum = (/[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/).source;

var cssExpand = [ "Top", "Right", "Bottom", "Left" ];

var isHidden = function( elem, el ) {
    // isHidden might be called from jQuery#filter function;
    // in that case, element will be second argument
    elem = el || elem;
    return jQuery.css( elem, "display" ) === "none" || !jQuery.contains( elem.ownerDocument, elem );
  };

var rcheckableType = (/^(?:checkbox|radio)$/i);



(function() {
  var fragment = document.createDocumentFragment(),
    div = fragment.appendChild( document.createElement( "div" ) ),
    input = document.createElement( "input" );

  // Support: Safari<=5.1
  // Check state lost if the name is set (#11217)
  // Support: Windows Web Apps (WWA)
  // `name` and `type` must use .setAttribute for WWA (#14901)
  input.setAttribute( "type", "radio" );
  input.setAttribute( "checked", "checked" );
  input.setAttribute( "name", "t" );

  div.appendChild( input );

  // Support: Safari<=5.1, Android<4.2
  // Older WebKit doesn't clone checked state correctly in fragments
  support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked;

  // Support: IE<=11+
  // Make sure textarea (and checkbox) defaultValue is properly cloned
  div.innerHTML = "<textarea>x</textarea>";
  support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue;
})();
var strundefined = typeof undefined;



support.focusinBubbles = "onfocusin" in window;


var
  rkeyEvent = /^key/,
  rmouseEvent = /^(?:mouse|pointer|contextmenu)|click/,
  rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,
  rtypenamespace = /^([^.]*)(?:\.(.+)|)$/;

function returnTrue() {
  return true;
}

function returnFalse() {
  return false;
}

function safeActiveElement() {
  try {
    return document.activeElement;
  } catch ( err ) { }
}

/*
 * Helper functions for managing events -- not part of the public interface.
 * Props to Dean Edwards' addEvent library for many of the ideas.
 */
jQuery.event = {

  global: {},

  add: function( elem, types, handler, data, selector ) {

    var handleObjIn, eventHandle, tmp,
      events, t, handleObj,
      special, handlers, type, namespaces, origType,
      elemData = data_priv.get( elem );

    // Don't attach events to noData or text/comment nodes (but allow plain objects)
    if ( !elemData ) {
      return;
    }

    // Caller can pass in an object of custom data in lieu of the handler
    if ( handler.handler ) {
      handleObjIn = handler;
      handler = handleObjIn.handler;
      selector = handleObjIn.selector;
    }

    // Make sure that the handler has a unique ID, used to find/remove it later
    if ( !handler.guid ) {
      handler.guid = jQuery.guid++;
    }

    // Init the element's event structure and main handler, if this is the first
    if ( !(events = elemData.events) ) {
      events = elemData.events = {};
    }
    if ( !(eventHandle = elemData.handle) ) {
      eventHandle = elemData.handle = function( e ) {
        // Discard the second event of a jQuery.event.trigger() and
        // when an event is called after a page has unloaded
        return typeof jQuery !== strundefined && jQuery.event.triggered !== e.type ?
          jQuery.event.dispatch.apply( elem, arguments ) : undefined;
      };
    }

    // Handle multiple events separated by a space
    types = ( types || "" ).match( rnotwhite ) || [ "" ];
    t = types.length;
    while ( t-- ) {
      tmp = rtypenamespace.exec( types[t] ) || [];
      type = origType = tmp[1];
      namespaces = ( tmp[2] || "" ).split( "." ).sort();

      // There *must* be a type, no attaching namespace-only handlers
      if ( !type ) {
        continue;
      }

      // If event changes its type, use the special event handlers for the changed type
      special = jQuery.event.special[ type ] || {};

      // If selector defined, determine special event api type, otherwise given type
      type = ( selector ? special.delegateType : special.bindType ) || type;

      // Update special based on newly reset type
      special = jQuery.event.special[ type ] || {};

      // handleObj is passed to all event handlers
      handleObj = jQuery.extend({
        type: type,
        origType: origType,
        data: data,
        handler: handler,
        guid: handler.guid,
        selector: selector,
        needsContext: selector && jQuery.expr.match.needsContext.test( selector ),
        namespace: namespaces.join(".")
      }, handleObjIn );

      // Init the event handler queue if we're the first
      if ( !(handlers = events[ type ]) ) {
        handlers = events[ type ] = [];
        handlers.delegateCount = 0;

        // Only use addEventListener if the special events handler returns false
        if ( !special.setup || special.setup.call( elem, data, namespaces, eventHandle ) === false ) {
          if ( elem.addEventListener ) {
            elem.addEventListener( type, eventHandle, false );
          }
        }
      }

      if ( special.add ) {
        special.add.call( elem, handleObj );

        if ( !handleObj.handler.guid ) {
          handleObj.handler.guid = handler.guid;
        }
      }

      // Add to the element's handler list, delegates in front
      if ( selector ) {
        handlers.splice( handlers.delegateCount++, 0, handleObj );
      } else {
        handlers.push( handleObj );
      }

      // Keep track of which events have ever been used, for event optimization
      jQuery.event.global[ type ] = true;
    }

  },

  // Detach an event or set of events from an element
  remove: function( elem, types, handler, selector, mappedTypes ) {

    var j, origCount, tmp,
      events, t, handleObj,
      special, handlers, type, namespaces, origType,
      elemData = data_priv.hasData( elem ) && data_priv.get( elem );

    if ( !elemData || !(events = elemData.events) ) {
      return;
    }

    // Once for each type.namespace in types; type may be omitted
    types = ( types || "" ).match( rnotwhite ) || [ "" ];
    t = types.length;
    while ( t-- ) {
      tmp = rtypenamespace.exec( types[t] ) || [];
      type = origType = tmp[1];
      namespaces = ( tmp[2] || "" ).split( "." ).sort();

      // Unbind all events (on this namespace, if provided) for the element
      if ( !type ) {
        for ( type in events ) {
          jQuery.event.remove( elem, type + types[ t ], handler, selector, true );
        }
        continue;
      }

      special = jQuery.event.special[ type ] || {};
      type = ( selector ? special.delegateType : special.bindType ) || type;
      handlers = events[ type ] || [];
      tmp = tmp[2] && new RegExp( "(^|\\.)" + namespaces.join("\\.(?:.*\\.|)") + "(\\.|$)" );

      // Remove matching events
      origCount = j = handlers.length;
      while ( j-- ) {
        handleObj = handlers[ j ];

        if ( ( mappedTypes || origType === handleObj.origType ) &&
          ( !handler || handler.guid === handleObj.guid ) &&
          ( !tmp || tmp.test( handleObj.namespace ) ) &&
          ( !selector || selector === handleObj.selector || selector === "**" && handleObj.selector ) ) {
          handlers.splice( j, 1 );

          if ( handleObj.selector ) {
            handlers.delegateCount--;
          }
          if ( special.remove ) {
            special.remove.call( elem, handleObj );
          }
        }
      }

      // Remove generic event handler if we removed something and no more handlers exist
      // (avoids potential for endless recursion during removal of special event handlers)
      if ( origCount && !handlers.length ) {
        if ( !special.teardown || special.teardown.call( elem, namespaces, elemData.handle ) === false ) {
          jQuery.removeEvent( elem, type, elemData.handle );
        }

        delete events[ type ];
      }
    }

    // Remove the expando if it's no longer used
    if ( jQuery.isEmptyObject( events ) ) {
      delete elemData.handle;
      data_priv.remove( elem, "events" );
    }
  },

  trigger: function( event, data, elem, onlyHandlers ) {

    var i, cur, tmp, bubbleType, ontype, handle, special,
      eventPath = [ elem || document ],
      type = hasOwn.call( event, "type" ) ? event.type : event,
      namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split(".") : [];

    cur = tmp = elem = elem || document;

    // Don't do events on text and comment nodes
    if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
      return;
    }

    // focus/blur morphs to focusin/out; ensure we're not firing them right now
    if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
      return;
    }

    if ( type.indexOf(".") >= 0 ) {
      // Namespaced trigger; create a regexp to match event type in handle()
      namespaces = type.split(".");
      type = namespaces.shift();
      namespaces.sort();
    }
    ontype = type.indexOf(":") < 0 && "on" + type;

    // Caller can pass in a jQuery.Event object, Object, or just an event type string
    event = event[ jQuery.expando ] ?
      event :
      new jQuery.Event( type, typeof event === "object" && event );

    // Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)
    event.isTrigger = onlyHandlers ? 2 : 3;
    event.namespace = namespaces.join(".");
    event.namespace_re = event.namespace ?
      new RegExp( "(^|\\.)" + namespaces.join("\\.(?:.*\\.|)") + "(\\.|$)" ) :
      null;

    // Clean up the event in case it is being reused
    event.result = undefined;
    if ( !event.target ) {
      event.target = elem;
    }

    // Clone any incoming data and prepend the event, creating the handler arg list
    data = data == null ?
      [ event ] :
      jQuery.makeArray( data, [ event ] );

    // Allow special events to draw outside the lines
    special = jQuery.event.special[ type ] || {};
    if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
      return;
    }

    // Determine event propagation path in advance, per W3C events spec (#9951)
    // Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
    if ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) {

      bubbleType = special.delegateType || type;
      if ( !rfocusMorph.test( bubbleType + type ) ) {
        cur = cur.parentNode;
      }
      for ( ; cur; cur = cur.parentNode ) {
        eventPath.push( cur );
        tmp = cur;
      }

      // Only add window if we got to document (e.g., not plain obj or detached DOM)
      if ( tmp === (elem.ownerDocument || document) ) {
        eventPath.push( tmp.defaultView || tmp.parentWindow || window );
      }
    }

    // Fire handlers on the event path
    i = 0;
    while ( (cur = eventPath[i++]) && !event.isPropagationStopped() ) {

      event.type = i > 1 ?
        bubbleType :
        special.bindType || type;

      // jQuery handler
      handle = ( data_priv.get( cur, "events" ) || {} )[ event.type ] && data_priv.get( cur, "handle" );
      if ( handle ) {
        handle.apply( cur, data );
      }

      // Native handler
      handle = ontype && cur[ ontype ];
      if ( handle && handle.apply && jQuery.acceptData( cur ) ) {
        event.result = handle.apply( cur, data );
        if ( event.result === false ) {
          event.preventDefault();
        }
      }
    }
    event.type = type;

    // If nobody prevented the default action, do it now
    if ( !onlyHandlers && !event.isDefaultPrevented() ) {

      if ( (!special._default || special._default.apply( eventPath.pop(), data ) === false) &&
        jQuery.acceptData( elem ) ) {

        // Call a native DOM method on the target with the same name name as the event.
        // Don't do default actions on window, that's where global variables be (#6170)
        if ( ontype && jQuery.isFunction( elem[ type ] ) && !jQuery.isWindow( elem ) ) {

          // Don't re-trigger an onFOO event when we call its FOO() method
          tmp = elem[ ontype ];

          if ( tmp ) {
            elem[ ontype ] = null;
          }

          // Prevent re-triggering of the same event, since we already bubbled it above
          jQuery.event.triggered = type;
          elem[ type ]();
          jQuery.event.triggered = undefined;

          if ( tmp ) {
            elem[ ontype ] = tmp;
          }
        }
      }
    }

    return event.result;
  },

  dispatch: function( event ) {

    // Make a writable jQuery.Event from the native event object
    event = jQuery.event.fix( event );

    var i, j, ret, matched, handleObj,
      handlerQueue = [],
      args = slice.call( arguments ),
      handlers = ( data_priv.get( this, "events" ) || {} )[ event.type ] || [],
      special = jQuery.event.special[ event.type ] || {};

    // Use the fix-ed jQuery.Event rather than the (read-only) native event
    args[0] = event;
    event.delegateTarget = this;

    // Call the preDispatch hook for the mapped type, and let it bail if desired
    if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {
      return;
    }

    // Determine handlers
    handlerQueue = jQuery.event.handlers.call( this, event, handlers );

    // Run delegates first; they may want to stop propagation beneath us
    i = 0;
    while ( (matched = handlerQueue[ i++ ]) && !event.isPropagationStopped() ) {
      event.currentTarget = matched.elem;

      j = 0;
      while ( (handleObj = matched.handlers[ j++ ]) && !event.isImmediatePropagationStopped() ) {

        // Triggered event must either 1) have no namespace, or 2) have namespace(s)
        // a subset or equal to those in the bound event (both can have no namespace).
        if ( !event.namespace_re || event.namespace_re.test( handleObj.namespace ) ) {

          event.handleObj = handleObj;
          event.data = handleObj.data;

          ret = ( (jQuery.event.special[ handleObj.origType ] || {}).handle || handleObj.handler )
              .apply( matched.elem, args );

          if ( ret !== undefined ) {
            if ( (event.result = ret) === false ) {
              event.preventDefault();
              event.stopPropagation();
            }
          }
        }
      }
    }

    // Call the postDispatch hook for the mapped type
    if ( special.postDispatch ) {
      special.postDispatch.call( this, event );
    }

    return event.result;
  },

  handlers: function( event, handlers ) {
    var i, matches, sel, handleObj,
      handlerQueue = [],
      delegateCount = handlers.delegateCount,
      cur = event.target;

    // Find delegate handlers
    // Black-hole SVG <use> instance trees (#13180)
    // Avoid non-left-click bubbling in Firefox (#3861)
    if ( delegateCount && cur.nodeType && (!event.button || event.type !== "click") ) {

      for ( ; cur !== this; cur = cur.parentNode || this ) {

        // Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
        if ( cur.disabled !== true || event.type !== "click" ) {
          matches = [];
          for ( i = 0; i < delegateCount; i++ ) {
            handleObj = handlers[ i ];

            // Don't conflict with Object.prototype properties (#13203)
            sel = handleObj.selector + " ";

            if ( matches[ sel ] === undefined ) {
              matches[ sel ] = handleObj.needsContext ?
                jQuery( sel, this ).index( cur ) >= 0 :
                jQuery.find( sel, this, null, [ cur ] ).length;
            }
            if ( matches[ sel ] ) {
              matches.push( handleObj );
            }
          }
          if ( matches.length ) {
            handlerQueue.push({ elem: cur, handlers: matches });
          }
        }
      }
    }

    // Add the remaining (directly-bound) handlers
    if ( delegateCount < handlers.length ) {
      handlerQueue.push({ elem: this, handlers: handlers.slice( delegateCount ) });
    }

    return handlerQueue;
  },

  // Includes some event props shared by KeyEvent and MouseEvent
  props: "altKey bubbles cancelable ctrlKey currentTarget eventPhase metaKey relatedTarget shiftKey target timeStamp view which".split(" "),

  fixHooks: {},

  keyHooks: {
    props: "char charCode key keyCode".split(" "),
    filter: function( event, original ) {

      // Add which for key events
      if ( event.which == null ) {
        event.which = original.charCode != null ? original.charCode : original.keyCode;
      }

      return event;
    }
  },

  mouseHooks: {
    props: "button buttons clientX clientY offsetX offsetY pageX pageY screenX screenY toElement".split(" "),
    filter: function( event, original ) {
      var eventDoc, doc, body,
        button = original.button;

      // Calculate pageX/Y if missing and clientX/Y available
      if ( event.pageX == null && original.clientX != null ) {
        eventDoc = event.target.ownerDocument || document;
        doc = eventDoc.documentElement;
        body = eventDoc.body;

        event.pageX = original.clientX + ( doc && doc.scrollLeft || body && body.scrollLeft || 0 ) - ( doc && doc.clientLeft || body && body.clientLeft || 0 );
        event.pageY = original.clientY + ( doc && doc.scrollTop  || body && body.scrollTop  || 0 ) - ( doc && doc.clientTop  || body && body.clientTop  || 0 );
      }

      // Add which for click: 1 === left; 2 === middle; 3 === right
      // Note: button is not normalized, so don't use it
      if ( !event.which && button !== undefined ) {
        event.which = ( button & 1 ? 1 : ( button & 2 ? 3 : ( button & 4 ? 2 : 0 ) ) );
      }

      return event;
    }
  },

  fix: function( event ) {
    if ( event[ jQuery.expando ] ) {
      return event;
    }

    // Create a writable copy of the event object and normalize some properties
    var i, prop, copy,
      type = event.type,
      originalEvent = event,
      fixHook = this.fixHooks[ type ];

    if ( !fixHook ) {
      this.fixHooks[ type ] = fixHook =
        rmouseEvent.test( type ) ? this.mouseHooks :
        rkeyEvent.test( type ) ? this.keyHooks :
        {};
    }
    copy = fixHook.props ? this.props.concat( fixHook.props ) : this.props;

    event = new jQuery.Event( originalEvent );

    i = copy.length;
    while ( i-- ) {
      prop = copy[ i ];
      event[ prop ] = originalEvent[ prop ];
    }

    // Support: Cordova 2.5 (WebKit) (#13255)
    // All events should have a target; Cordova deviceready doesn't
    if ( !event.target ) {
      event.target = document;
    }

    // Support: Safari 6.0+, Chrome<28
    // Target should not be a text node (#504, #13143)
    if ( event.target.nodeType === 3 ) {
      event.target = event.target.parentNode;
    }

    return fixHook.filter ? fixHook.filter( event, originalEvent ) : event;
  },

  special: {
    load: {
      // Prevent triggered image.load events from bubbling to window.load
      noBubble: true
    },
    focus: {
      // Fire native event if possible so blur/focus sequence is correct
      trigger: function() {
        if ( this !== safeActiveElement() && this.focus ) {
          this.focus();
          return false;
        }
      },
      delegateType: "focusin"
    },
    blur: {
      trigger: function() {
        if ( this === safeActiveElement() && this.blur ) {
          this.blur();
          return false;
        }
      },
      delegateType: "focusout"
    },
    click: {
      // For checkbox, fire native event so checked state will be right
      trigger: function() {
        if ( this.type === "checkbox" && this.click && jQuery.nodeName( this, "input" ) ) {
          this.click();
          return false;
        }
      },

      // For cross-browser consistency, don't fire native .click() on links
      _default: function( event ) {
        return jQuery.nodeName( event.target, "a" );
      }
    },

    beforeunload: {
      postDispatch: function( event ) {

        // Support: Firefox 20+
        // Firefox doesn't alert if the returnValue field is not set.
        if ( event.result !== undefined && event.originalEvent ) {
          event.originalEvent.returnValue = event.result;
        }
      }
    }
  },

  simulate: function( type, elem, event, bubble ) {
    // Piggyback on a donor event to simulate a different one.
    // Fake originalEvent to avoid donor's stopPropagation, but if the
    // simulated event prevents default then we do the same on the donor.
    var e = jQuery.extend(
      new jQuery.Event(),
      event,
      {
        type: type,
        isSimulated: true,
        originalEvent: {}
      }
    );
    if ( bubble ) {
      jQuery.event.trigger( e, null, elem );
    } else {
      jQuery.event.dispatch.call( elem, e );
    }
    if ( e.isDefaultPrevented() ) {
      event.preventDefault();
    }
  }
};

jQuery.removeEvent = function( elem, type, handle ) {
  if ( elem.removeEventListener ) {
    elem.removeEventListener( type, handle, false );
  }
};

jQuery.Event = function( src, props ) {
  // Allow instantiation without the 'new' keyword
  if ( !(this instanceof jQuery.Event) ) {
    return new jQuery.Event( src, props );
  }

  // Event object
  if ( src && src.type ) {
    this.originalEvent = src;
    this.type = src.type;

    // Events bubbling up the document may have been marked as prevented
    // by a handler lower down the tree; reflect the correct value.
    this.isDefaultPrevented = src.defaultPrevented ||
        src.defaultPrevented === undefined &&
        // Support: Android<4.0
        src.returnValue === false ?
      returnTrue :
      returnFalse;

  // Event type
  } else {
    this.type = src;
  }

  // Put explicitly provided properties onto the event object
  if ( props ) {
    jQuery.extend( this, props );
  }

  // Create a timestamp if incoming event doesn't have one
  this.timeStamp = src && src.timeStamp || jQuery.now();

  // Mark it as fixed
  this[ jQuery.expando ] = true;
};

// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
// http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
jQuery.Event.prototype = {
  isDefaultPrevented: returnFalse,
  isPropagationStopped: returnFalse,
  isImmediatePropagationStopped: returnFalse,

  preventDefault: function() {
    var e = this.originalEvent;

    this.isDefaultPrevented = returnTrue;

    if ( e && e.preventDefault ) {
      e.preventDefault();
    }
  },
  stopPropagation: function() {
    var e = this.originalEvent;

    this.isPropagationStopped = returnTrue;

    if ( e && e.stopPropagation ) {
      e.stopPropagation();
    }
  },
  stopImmediatePropagation: function() {
    var e = this.originalEvent;

    this.isImmediatePropagationStopped = returnTrue;

    if ( e && e.stopImmediatePropagation ) {
      e.stopImmediatePropagation();
    }

    this.stopPropagation();
  }
};

// Create mouseenter/leave events using mouseover/out and event-time checks
// Support: Chrome 15+
jQuery.each({
  mouseenter: "mouseover",
  mouseleave: "mouseout",
  pointerenter: "pointerover",
  pointerleave: "pointerout"
}, function( orig, fix ) {
  jQuery.event.special[ orig ] = {
    delegateType: fix,
    bindType: fix,

    handle: function( event ) {
      var ret,
        target = this,
        related = event.relatedTarget,
        handleObj = event.handleObj;

      // For mousenter/leave call the handler if related is outside the target.
      // NB: No relatedTarget if the mouse left/entered the browser window
      if ( !related || (related !== target && !jQuery.contains( target, related )) ) {
        event.type = handleObj.origType;
        ret = handleObj.handler.apply( this, arguments );
        event.type = fix;
      }
      return ret;
    }
  };
});

// Support: Firefox, Chrome, Safari
// Create "bubbling" focus and blur events
if ( !support.focusinBubbles ) {
  jQuery.each({ focus: "focusin", blur: "focusout" }, function( orig, fix ) {

    // Attach a single capturing handler on the document while someone wants focusin/focusout
    var handler = function( event ) {
        jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ), true );
      };

    jQuery.event.special[ fix ] = {
      setup: function() {
        var doc = this.ownerDocument || this,
          attaches = data_priv.access( doc, fix );

        if ( !attaches ) {
          doc.addEventListener( orig, handler, true );
        }
        data_priv.access( doc, fix, ( attaches || 0 ) + 1 );
      },
      teardown: function() {
        var doc = this.ownerDocument || this,
          attaches = data_priv.access( doc, fix ) - 1;

        if ( !attaches ) {
          doc.removeEventListener( orig, handler, true );
          data_priv.remove( doc, fix );

        } else {
          data_priv.access( doc, fix, attaches );
        }
      }
    };
  });
}

jQuery.fn.extend({

  on: function( types, selector, data, fn, /*INTERNAL*/ one ) {
    var origFn, type;

    // Types can be a map of types/handlers
    if ( typeof types === "object" ) {
      // ( types-Object, selector, data )
      if ( typeof selector !== "string" ) {
        // ( types-Object, data )
        data = data || selector;
        selector = undefined;
      }
      for ( type in types ) {
        this.on( type, selector, data, types[ type ], one );
      }
      return this;
    }

    if ( data == null && fn == null ) {
      // ( types, fn )
      fn = selector;
      data = selector = undefined;
    } else if ( fn == null ) {
      if ( typeof selector === "string" ) {
        // ( types, selector, fn )
        fn = data;
        data = undefined;
      } else {
        // ( types, data, fn )
        fn = data;
        data = selector;
        selector = undefined;
      }
    }
    if ( fn === false ) {
      fn = returnFalse;
    } else if ( !fn ) {
      return this;
    }

    if ( one === 1 ) {
      origFn = fn;
      fn = function( event ) {
        // Can use an empty set, since event contains the info
        jQuery().off( event );
        return origFn.apply( this, arguments );
      };
      // Use same guid so caller can remove using origFn
      fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );
    }
    return this.each( function() {
      jQuery.event.add( this, types, fn, data, selector );
    });
  },
  one: function( types, selector, data, fn ) {
    return this.on( types, selector, data, fn, 1 );
  },
  off: function( types, selector, fn ) {
    var handleObj, type;
    if ( types && types.preventDefault && types.handleObj ) {
      // ( event )  dispatched jQuery.Event
      handleObj = types.handleObj;
      jQuery( types.delegateTarget ).off(
        handleObj.namespace ? handleObj.origType + "." + handleObj.namespace : handleObj.origType,
        handleObj.selector,
        handleObj.handler
      );
      return this;
    }
    if ( typeof types === "object" ) {
      // ( types-object [, selector] )
      for ( type in types ) {
        this.off( type, selector, types[ type ] );
      }
      return this;
    }
    if ( selector === false || typeof selector === "function" ) {
      // ( types [, fn] )
      fn = selector;
      selector = undefined;
    }
    if ( fn === false ) {
      fn = returnFalse;
    }
    return this.each(function() {
      jQuery.event.remove( this, types, fn, selector );
    });
  },

  trigger: function( type, data ) {
    return this.each(function() {
      jQuery.event.trigger( type, data, this );
    });
  },
  triggerHandler: function( type, data ) {
    var elem = this[0];
    if ( elem ) {
      return jQuery.event.trigger( type, data, elem, true );
    }
  }
});


var
  rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:]+)[^>]*)\/>/gi,
  rtagName = /<([\w:]+)/,
  rhtml = /<|&#?\w+;/,
  rnoInnerhtml = /<(?:script|style|link)/i,
  // checked="checked" or checked
  rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
  rscriptType = /^$|\/(?:java|ecma)script/i,
  rscriptTypeMasked = /^true\/(.*)/,
  rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g,

  // We have to close these tags to support XHTML (#13200)
  wrapMap = {

    // Support: IE9
    option: [ 1, "<select multiple='multiple'>", "</select>" ],

    thead: [ 1, "<table>", "</table>" ],
    col: [ 2, "<table><colgroup>", "</colgroup></table>" ],
    tr: [ 2, "<table><tbody>", "</tbody></table>" ],
    td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],

    _default: [ 0, "", "" ]
  };

// Support: IE9
wrapMap.optgroup = wrapMap.option;

wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
wrapMap.th = wrapMap.td;

// Support: 1.x compatibility
// Manipulating tables requires a tbody
function manipulationTarget( elem, content ) {
  return jQuery.nodeName( elem, "table" ) &&
    jQuery.nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ?

    elem.getElementsByTagName("tbody")[0] ||
      elem.appendChild( elem.ownerDocument.createElement("tbody") ) :
    elem;
}

// Replace/restore the type attribute of script elements for safe DOM manipulation
function disableScript( elem ) {
  elem.type = (elem.getAttribute("type") !== null) + "/" + elem.type;
  return elem;
}
function restoreScript( elem ) {
  var match = rscriptTypeMasked.exec( elem.type );

  if ( match ) {
    elem.type = match[ 1 ];
  } else {
    elem.removeAttribute("type");
  }

  return elem;
}

// Mark scripts as having already been evaluated
function setGlobalEval( elems, refElements ) {
  var i = 0,
    l = elems.length;

  for ( ; i < l; i++ ) {
    data_priv.set(
      elems[ i ], "globalEval", !refElements || data_priv.get( refElements[ i ], "globalEval" )
    );
  }
}

function cloneCopyEvent( src, dest ) {
  var i, l, type, pdataOld, pdataCur, udataOld, udataCur, events;

  if ( dest.nodeType !== 1 ) {
    return;
  }

  // 1. Copy private data: events, handlers, etc.
  if ( data_priv.hasData( src ) ) {
    pdataOld = data_priv.access( src );
    pdataCur = data_priv.set( dest, pdataOld );
    events = pdataOld.events;

    if ( events ) {
      delete pdataCur.handle;
      pdataCur.events = {};

      for ( type in events ) {
        for ( i = 0, l = events[ type ].length; i < l; i++ ) {
          jQuery.event.add( dest, type, events[ type ][ i ] );
        }
      }
    }
  }

  // 2. Copy user data
  if ( data_user.hasData( src ) ) {
    udataOld = data_user.access( src );
    udataCur = jQuery.extend( {}, udataOld );

    data_user.set( dest, udataCur );
  }
}

function getAll( context, tag ) {
  var ret = context.getElementsByTagName ? context.getElementsByTagName( tag || "*" ) :
      context.querySelectorAll ? context.querySelectorAll( tag || "*" ) :
      [];

  return tag === undefined || tag && jQuery.nodeName( context, tag ) ?
    jQuery.merge( [ context ], ret ) :
    ret;
}

// Fix IE bugs, see support tests
function fixInput( src, dest ) {
  var nodeName = dest.nodeName.toLowerCase();

  // Fails to persist the checked state of a cloned checkbox or radio button.
  if ( nodeName === "input" && rcheckableType.test( src.type ) ) {
    dest.checked = src.checked;

  // Fails to return the selected option to the default selected state when cloning options
  } else if ( nodeName === "input" || nodeName === "textarea" ) {
    dest.defaultValue = src.defaultValue;
  }
}

jQuery.extend({
  clone: function( elem, dataAndEvents, deepDataAndEvents ) {
    var i, l, srcElements, destElements,
      clone = elem.cloneNode( true ),
      inPage = jQuery.contains( elem.ownerDocument, elem );

    // Fix IE cloning issues
    if ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) &&
        !jQuery.isXMLDoc( elem ) ) {

      // We eschew Sizzle here for performance reasons: http://jsperf.com/getall-vs-sizzle/2
      destElements = getAll( clone );
      srcElements = getAll( elem );

      for ( i = 0, l = srcElements.length; i < l; i++ ) {
        fixInput( srcElements[ i ], destElements[ i ] );
      }
    }

    // Copy the events from the original to the clone
    if ( dataAndEvents ) {
      if ( deepDataAndEvents ) {
        srcElements = srcElements || getAll( elem );
        destElements = destElements || getAll( clone );

        for ( i = 0, l = srcElements.length; i < l; i++ ) {
          cloneCopyEvent( srcElements[ i ], destElements[ i ] );
        }
      } else {
        cloneCopyEvent( elem, clone );
      }
    }

    // Preserve script evaluation history
    destElements = getAll( clone, "script" );
    if ( destElements.length > 0 ) {
      setGlobalEval( destElements, !inPage && getAll( elem, "script" ) );
    }

    // Return the cloned set
    return clone;
  },

  buildFragment: function( elems, context, scripts, selection ) {
    var elem, tmp, tag, wrap, contains, j,
      fragment = context.createDocumentFragment(),
      nodes = [],
      i = 0,
      l = elems.length;

    for ( ; i < l; i++ ) {
      elem = elems[ i ];

      if ( elem || elem === 0 ) {

        // Add nodes directly
        if ( jQuery.type( elem ) === "object" ) {
          // Support: QtWebKit, PhantomJS
          // push.apply(_, arraylike) throws on ancient WebKit
          jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );

        // Convert non-html into a text node
        } else if ( !rhtml.test( elem ) ) {
          nodes.push( context.createTextNode( elem ) );

        // Convert html into DOM nodes
        } else {
          tmp = tmp || fragment.appendChild( context.createElement("div") );

          // Deserialize a standard representation
          tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase();
          wrap = wrapMap[ tag ] || wrapMap._default;
          tmp.innerHTML = wrap[ 1 ] + elem.replace( rxhtmlTag, "<$1></$2>" ) + wrap[ 2 ];

          // Descend through wrappers to the right content
          j = wrap[ 0 ];
          while ( j-- ) {
            tmp = tmp.lastChild;
          }

          // Support: QtWebKit, PhantomJS
          // push.apply(_, arraylike) throws on ancient WebKit
          jQuery.merge( nodes, tmp.childNodes );

          // Remember the top-level container
          tmp = fragment.firstChild;

          // Ensure the created nodes are orphaned (#12392)
          tmp.textContent = "";
        }
      }
    }

    // Remove wrapper from fragment
    fragment.textContent = "";

    i = 0;
    while ( (elem = nodes[ i++ ]) ) {

      // #4087 - If origin and destination elements are the same, and this is
      // that element, do not do anything
      if ( selection && jQuery.inArray( elem, selection ) !== -1 ) {
        continue;
      }

      contains = jQuery.contains( elem.ownerDocument, elem );

      // Append to fragment
      tmp = getAll( fragment.appendChild( elem ), "script" );

      // Preserve script evaluation history
      if ( contains ) {
        setGlobalEval( tmp );
      }

      // Capture executables
      if ( scripts ) {
        j = 0;
        while ( (elem = tmp[ j++ ]) ) {
          if ( rscriptType.test( elem.type || "" ) ) {
            scripts.push( elem );
          }
        }
      }
    }

    return fragment;
  },

  cleanData: function( elems ) {
    var data, elem, type, key,
      special = jQuery.event.special,
      i = 0;

    for ( ; (elem = elems[ i ]) !== undefined; i++ ) {
      if ( jQuery.acceptData( elem ) ) {
        key = elem[ data_priv.expando ];

        if ( key && (data = data_priv.cache[ key ]) ) {
          if ( data.events ) {
            for ( type in data.events ) {
              if ( special[ type ] ) {
                jQuery.event.remove( elem, type );

              // This is a shortcut to avoid jQuery.event.remove's overhead
              } else {
                jQuery.removeEvent( elem, type, data.handle );
              }
            }
          }
          if ( data_priv.cache[ key ] ) {
            // Discard any remaining `private` data
            delete data_priv.cache[ key ];
          }
        }
      }
      // Discard any remaining `user` data
      delete data_user.cache[ elem[ data_user.expando ] ];
    }
  }
});

jQuery.fn.extend({
  text: function( value ) {
    return access( this, function( value ) {
      return value === undefined ?
        jQuery.text( this ) :
        this.empty().each(function() {
          if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
            this.textContent = value;
          }
        });
    }, null, value, arguments.length );
  },

  append: function() {
    return this.domManip( arguments, function( elem ) {
      if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
        var target = manipulationTarget( this, elem );
        target.appendChild( elem );
      }
    });
  },

  prepend: function() {
    return this.domManip( arguments, function( elem ) {
      if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
        var target = manipulationTarget( this, elem );
        target.insertBefore( elem, target.firstChild );
      }
    });
  },

  before: function() {
    return this.domManip( arguments, function( elem ) {
      if ( this.parentNode ) {
        this.parentNode.insertBefore( elem, this );
      }
    });
  },

  after: function() {
    return this.domManip( arguments, function( elem ) {
      if ( this.parentNode ) {
        this.parentNode.insertBefore( elem, this.nextSibling );
      }
    });
  },

  remove: function( selector, keepData /* Internal Use Only */ ) {
    var elem,
      elems = selector ? jQuery.filter( selector, this ) : this,
      i = 0;

    for ( ; (elem = elems[i]) != null; i++ ) {
      if ( !keepData && elem.nodeType === 1 ) {
        jQuery.cleanData( getAll( elem ) );
      }

      if ( elem.parentNode ) {
        if ( keepData && jQuery.contains( elem.ownerDocument, elem ) ) {
          setGlobalEval( getAll( elem, "script" ) );
        }
        elem.parentNode.removeChild( elem );
      }
    }

    return this;
  },

  empty: function() {
    var elem,
      i = 0;

    for ( ; (elem = this[i]) != null; i++ ) {
      if ( elem.nodeType === 1 ) {

        // Prevent memory leaks
        jQuery.cleanData( getAll( elem, false ) );

        // Remove any remaining nodes
        elem.textContent = "";
      }
    }

    return this;
  },

  clone: function( dataAndEvents, deepDataAndEvents ) {
    dataAndEvents = dataAndEvents == null ? false : dataAndEvents;
    deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;

    return this.map(function() {
      return jQuery.clone( this, dataAndEvents, deepDataAndEvents );
    });
  },

  html: function( value ) {
    return access( this, function( value ) {
      var elem = this[ 0 ] || {},
        i = 0,
        l = this.length;

      if ( value === undefined && elem.nodeType === 1 ) {
        return elem.innerHTML;
      }

      // See if we can take a shortcut and just use innerHTML
      if ( typeof value === "string" && !rnoInnerhtml.test( value ) &&
        !wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) {

        value = value.replace( rxhtmlTag, "<$1></$2>" );

        try {
          for ( ; i < l; i++ ) {
            elem = this[ i ] || {};

            // Remove element nodes and prevent memory leaks
            if ( elem.nodeType === 1 ) {
              jQuery.cleanData( getAll( elem, false ) );
              elem.innerHTML = value;
            }
          }

          elem = 0;

        // If using innerHTML throws an exception, use the fallback method
        } catch( e ) {}
      }

      if ( elem ) {
        this.empty().append( value );
      }
    }, null, value, arguments.length );
  },

  replaceWith: function() {
    var arg = arguments[ 0 ];

    // Make the changes, replacing each context element with the new content
    this.domManip( arguments, function( elem ) {
      arg = this.parentNode;

      jQuery.cleanData( getAll( this ) );

      if ( arg ) {
        arg.replaceChild( elem, this );
      }
    });

    // Force removal if there was no new content (e.g., from empty arguments)
    return arg && (arg.length || arg.nodeType) ? this : this.remove();
  },

  detach: function( selector ) {
    return this.remove( selector, true );
  },

  domManip: function( args, callback ) {

    // Flatten any nested arrays
    args = concat.apply( [], args );

    var fragment, first, scripts, hasScripts, node, doc,
      i = 0,
      l = this.length,
      set = this,
      iNoClone = l - 1,
      value = args[ 0 ],
      isFunction = jQuery.isFunction( value );

    // We can't cloneNode fragments that contain checked, in WebKit
    if ( isFunction ||
        ( l > 1 && typeof value === "string" &&
          !support.checkClone && rchecked.test( value ) ) ) {
      return this.each(function( index ) {
        var self = set.eq( index );
        if ( isFunction ) {
          args[ 0 ] = value.call( this, index, self.html() );
        }
        self.domManip( args, callback );
      });
    }

    if ( l ) {
      fragment = jQuery.buildFragment( args, this[ 0 ].ownerDocument, false, this );
      first = fragment.firstChild;

      if ( fragment.childNodes.length === 1 ) {
        fragment = first;
      }

      if ( first ) {
        scripts = jQuery.map( getAll( fragment, "script" ), disableScript );
        hasScripts = scripts.length;

        // Use the original fragment for the last item instead of the first because it can end up
        // being emptied incorrectly in certain situations (#8070).
        for ( ; i < l; i++ ) {
          node = fragment;

          if ( i !== iNoClone ) {
            node = jQuery.clone( node, true, true );

            // Keep references to cloned scripts for later restoration
            if ( hasScripts ) {
              // Support: QtWebKit
              // jQuery.merge because push.apply(_, arraylike) throws
              jQuery.merge( scripts, getAll( node, "script" ) );
            }
          }

          callback.call( this[ i ], node, i );
        }

        if ( hasScripts ) {
          doc = scripts[ scripts.length - 1 ].ownerDocument;

          // Reenable scripts
          jQuery.map( scripts, restoreScript );

          // Evaluate executable scripts on first document insertion
          for ( i = 0; i < hasScripts; i++ ) {
            node = scripts[ i ];
            if ( rscriptType.test( node.type || "" ) &&
              !data_priv.access( node, "globalEval" ) && jQuery.contains( doc, node ) ) {

              if ( node.src ) {
                // Optional AJAX dependency, but won't run scripts if not present
                if ( jQuery._evalUrl ) {
                  jQuery._evalUrl( node.src );
                }
              } else {
                jQuery.globalEval( node.textContent.replace( rcleanScript, "" ) );
              }
            }
          }
        }
      }
    }

    return this;
  }
});

jQuery.each({
  appendTo: "append",
  prependTo: "prepend",
  insertBefore: "before",
  insertAfter: "after",
  replaceAll: "replaceWith"
}, function( name, original ) {
  jQuery.fn[ name ] = function( selector ) {
    var elems,
      ret = [],
      insert = jQuery( selector ),
      last = insert.length - 1,
      i = 0;

    for ( ; i <= last; i++ ) {
      elems = i === last ? this : this.clone( true );
      jQuery( insert[ i ] )[ original ]( elems );

      // Support: QtWebKit
      // .get() because push.apply(_, arraylike) throws
      push.apply( ret, elems.get() );
    }

    return this.pushStack( ret );
  };
});


var iframe,
  elemdisplay = {};

/**
 * Retrieve the actual display of a element
 * @param {String} name nodeName of the element
 * @param {Object} doc Document object
 */
// Called only from within defaultDisplay
function actualDisplay( name, doc ) {
  var style,
    elem = jQuery( doc.createElement( name ) ).appendTo( doc.body ),

    // getDefaultComputedStyle might be reliably used only on attached element
    display = window.getDefaultComputedStyle && ( style = window.getDefaultComputedStyle( elem[ 0 ] ) ) ?

      // Use of this method is a temporary fix (more like optimization) until something better comes along,
      // since it was removed from specification and supported only in FF
      style.display : jQuery.css( elem[ 0 ], "display" );

  // We don't have any data stored on the element,
  // so use "detach" method as fast way to get rid of the element
  elem.detach();

  return display;
}

/**
 * Try to determine the default display value of an element
 * @param {String} nodeName
 */
function defaultDisplay( nodeName ) {
  var doc = document,
    display = elemdisplay[ nodeName ];

  if ( !display ) {
    display = actualDisplay( nodeName, doc );

    // If the simple way fails, read from inside an iframe
    if ( display === "none" || !display ) {

      // Use the already-created iframe if possible
      iframe = (iframe || jQuery( "<iframe frameborder='0' width='0' height='0'/>" )).appendTo( doc.documentElement );

      // Always write a new HTML skeleton so Webkit and Firefox don't choke on reuse
      doc = iframe[ 0 ].contentDocument;

      // Support: IE
      doc.write();
      doc.close();

      display = actualDisplay( nodeName, doc );
      iframe.detach();
    }

    // Store the correct default display
    elemdisplay[ nodeName ] = display;
  }

  return display;
}
var rmargin = (/^margin/);

var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" );

var getStyles = function( elem ) {
    // Support: IE<=11+, Firefox<=30+ (#15098, #14150)
    // IE throws on elements created in popups
    // FF meanwhile throws on frame elements through "defaultView.getComputedStyle"
    if ( elem.ownerDocument.defaultView.opener ) {
      return elem.ownerDocument.defaultView.getComputedStyle( elem, null );
    }

    return window.getComputedStyle( elem, null );
  };



function curCSS( elem, name, computed ) {
  var width, minWidth, maxWidth, ret,
    style = elem.style;

  computed = computed || getStyles( elem );

  // Support: IE9
  // getPropertyValue is only needed for .css('filter') (#12537)
  if ( computed ) {
    ret = computed.getPropertyValue( name ) || computed[ name ];
  }

  if ( computed ) {

    if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) {
      ret = jQuery.style( elem, name );
    }

    // Support: iOS < 6
    // A tribute to the "awesome hack by Dean Edwards"
    // iOS < 6 (at least) returns percentage for a larger set of values, but width seems to be reliably pixels
    // this is against the CSSOM draft spec: http://dev.w3.org/csswg/cssom/#resolved-values
    if ( rnumnonpx.test( ret ) && rmargin.test( name ) ) {

      // Remember the original values
      width = style.width;
      minWidth = style.minWidth;
      maxWidth = style.maxWidth;

      // Put in the new values to get a computed value out
      style.minWidth = style.maxWidth = style.width = ret;
      ret = computed.width;

      // Revert the changed values
      style.width = width;
      style.minWidth = minWidth;
      style.maxWidth = maxWidth;
    }
  }

  return ret !== undefined ?
    // Support: IE
    // IE returns zIndex value as an integer.
    ret + "" :
    ret;
}


function addGetHookIf( conditionFn, hookFn ) {
  // Define the hook, we'll check on the first run if it's really needed.
  return {
    get: function() {
      if ( conditionFn() ) {
        // Hook not needed (or it's not possible to use it due
        // to missing dependency), remove it.
        delete this.get;
        return;
      }

      // Hook needed; redefine it so that the support test is not executed again.
      return (this.get = hookFn).apply( this, arguments );
    }
  };
}


(function() {
  var pixelPositionVal, boxSizingReliableVal,
    docElem = document.documentElement,
    container = document.createElement( "div" ),
    div = document.createElement( "div" );

  if ( !div.style ) {
    return;
  }

  // Support: IE9-11+
  // Style of cloned element affects source element cloned (#8908)
  div.style.backgroundClip = "content-box";
  div.cloneNode( true ).style.backgroundClip = "";
  support.clearCloneStyle = div.style.backgroundClip === "content-box";

  container.style.cssText = "border:0;width:0;height:0;top:0;left:-9999px;margin-top:1px;" +
    "position:absolute";
  container.appendChild( div );

  // Executing both pixelPosition & boxSizingReliable tests require only one layout
  // so they're executed at the same time to save the second computation.
  function computePixelPositionAndBoxSizingReliable() {
    div.style.cssText =
      // Support: Firefox<29, Android 2.3
      // Vendor-prefix box-sizing
      "-webkit-box-sizing:border-box;-moz-box-sizing:border-box;" +
      "box-sizing:border-box;display:block;margin-top:1%;top:1%;" +
      "border:1px;padding:1px;width:4px;position:absolute";
    div.innerHTML = "";
    docElem.appendChild( container );

    var divStyle = window.getComputedStyle( div, null );
    pixelPositionVal = divStyle.top !== "1%";
    boxSizingReliableVal = divStyle.width === "4px";

    docElem.removeChild( container );
  }

  // Support: node.js jsdom
  // Don't assume that getComputedStyle is a property of the global object
  if ( window.getComputedStyle ) {
    jQuery.extend( support, {
      pixelPosition: function() {

        // This test is executed only once but we still do memoizing
        // since we can use the boxSizingReliable pre-computing.
        // No need to check if the test was already performed, though.
        computePixelPositionAndBoxSizingReliable();
        return pixelPositionVal;
      },
      boxSizingReliable: function() {
        if ( boxSizingReliableVal == null ) {
          computePixelPositionAndBoxSizingReliable();
        }
        return boxSizingReliableVal;
      },
      reliableMarginRight: function() {

        // Support: Android 2.3
        // Check if div with explicit width and no margin-right incorrectly
        // gets computed margin-right based on width of container. (#3333)
        // WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
        // This support function is only executed once so no memoizing is needed.
        var ret,
          marginDiv = div.appendChild( document.createElement( "div" ) );

        // Reset CSS: box-sizing; display; margin; border; padding
        marginDiv.style.cssText = div.style.cssText =
          // Support: Firefox<29, Android 2.3
          // Vendor-prefix box-sizing
          "-webkit-box-sizing:content-box;-moz-box-sizing:content-box;" +
          "box-sizing:content-box;display:block;margin:0;border:0;padding:0";
        marginDiv.style.marginRight = marginDiv.style.width = "0";
        div.style.width = "1px";
        docElem.appendChild( container );

        ret = !parseFloat( window.getComputedStyle( marginDiv, null ).marginRight );

        docElem.removeChild( container );
        div.removeChild( marginDiv );

        return ret;
      }
    });
  }
})();


// A method for quickly swapping in/out CSS properties to get correct calculations.
jQuery.swap = function( elem, options, callback, args ) {
  var ret, name,
    old = {};

  // Remember the old values, and insert the new ones
  for ( name in options ) {
    old[ name ] = elem.style[ name ];
    elem.style[ name ] = options[ name ];
  }

  ret = callback.apply( elem, args || [] );

  // Revert the old values
  for ( name in options ) {
    elem.style[ name ] = old[ name ];
  }

  return ret;
};


var
  // Swappable if display is none or starts with table except "table", "table-cell", or "table-caption"
  // See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
  rdisplayswap = /^(none|table(?!-c[ea]).+)/,
  rnumsplit = new RegExp( "^(" + pnum + ")(.*)$", "i" ),
  rrelNum = new RegExp( "^([+-])=(" + pnum + ")", "i" ),

  cssShow = { position: "absolute", visibility: "hidden", display: "block" },
  cssNormalTransform = {
    letterSpacing: "0",
    fontWeight: "400"
  },

  cssPrefixes = [ "Webkit", "O", "Moz", "ms" ];

// Return a css property mapped to a potentially vendor prefixed property
function vendorPropName( style, name ) {

  // Shortcut for names that are not vendor prefixed
  if ( name in style ) {
    return name;
  }

  // Check for vendor prefixed names
  var capName = name[0].toUpperCase() + name.slice(1),
    origName = name,
    i = cssPrefixes.length;

  while ( i-- ) {
    name = cssPrefixes[ i ] + capName;
    if ( name in style ) {
      return name;
    }
  }

  return origName;
}

function setPositiveNumber( elem, value, subtract ) {
  var matches = rnumsplit.exec( value );
  return matches ?
    // Guard against undefined "subtract", e.g., when used as in cssHooks
    Math.max( 0, matches[ 1 ] - ( subtract || 0 ) ) + ( matches[ 2 ] || "px" ) :
    value;
}

function augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) {
  var i = extra === ( isBorderBox ? "border" : "content" ) ?
    // If we already have the right measurement, avoid augmentation
    4 :
    // Otherwise initialize for horizontal or vertical properties
    name === "width" ? 1 : 0,

    val = 0;

  for ( ; i < 4; i += 2 ) {
    // Both box models exclude margin, so add it if we want it
    if ( extra === "margin" ) {
      val += jQuery.css( elem, extra + cssExpand[ i ], true, styles );
    }

    if ( isBorderBox ) {
      // border-box includes padding, so remove it if we want content
      if ( extra === "content" ) {
        val -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
      }

      // At this point, extra isn't border nor margin, so remove border
      if ( extra !== "margin" ) {
        val -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
      }
    } else {
      // At this point, extra isn't content, so add padding
      val += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );

      // At this point, extra isn't content nor padding, so add border
      if ( extra !== "padding" ) {
        val += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
      }
    }
  }

  return val;
}

function getWidthOrHeight( elem, name, extra ) {

  // Start with offset property, which is equivalent to the border-box value
  var valueIsBorderBox = true,
    val = name === "width" ? elem.offsetWidth : elem.offsetHeight,
    styles = getStyles( elem ),
    isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box";

  // Some non-html elements return undefined for offsetWidth, so check for null/undefined
  // svg - https://bugzilla.mozilla.org/show_bug.cgi?id=649285
  // MathML - https://bugzilla.mozilla.org/show_bug.cgi?id=491668
  if ( val <= 0 || val == null ) {
    // Fall back to computed then uncomputed css if necessary
    val = curCSS( elem, name, styles );
    if ( val < 0 || val == null ) {
      val = elem.style[ name ];
    }

    // Computed unit is not pixels. Stop here and return.
    if ( rnumnonpx.test(val) ) {
      return val;
    }

    // Check for style in case a browser which returns unreliable values
    // for getComputedStyle silently falls back to the reliable elem.style
    valueIsBorderBox = isBorderBox &&
      ( support.boxSizingReliable() || val === elem.style[ name ] );

    // Normalize "", auto, and prepare for extra
    val = parseFloat( val ) || 0;
  }

  // Use the active box-sizing model to add/subtract irrelevant styles
  return ( val +
    augmentWidthOrHeight(
      elem,
      name,
      extra || ( isBorderBox ? "border" : "content" ),
      valueIsBorderBox,
      styles
    )
  ) + "px";
}

function showHide( elements, show ) {
  var display, elem, hidden,
    values = [],
    index = 0,
    length = elements.length;

  for ( ; index < length; index++ ) {
    elem = elements[ index ];
    if ( !elem.style ) {
      continue;
    }

    values[ index ] = data_priv.get( elem, "olddisplay" );
    display = elem.style.display;
    if ( show ) {
      // Reset the inline display of this element to learn if it is
      // being hidden by cascaded rules or not
      if ( !values[ index ] && display === "none" ) {
        elem.style.display = "";
      }

      // Set elements which have been overridden with display: none
      // in a stylesheet to whatever the default browser style is
      // for such an element
      if ( elem.style.display === "" && isHidden( elem ) ) {
        values[ index ] = data_priv.access( elem, "olddisplay", defaultDisplay(elem.nodeName) );
      }
    } else {
      hidden = isHidden( elem );

      if ( display !== "none" || !hidden ) {
        data_priv.set( elem, "olddisplay", hidden ? display : jQuery.css( elem, "display" ) );
      }
    }
  }

  // Set the display of most of the elements in a second loop
  // to avoid the constant reflow
  for ( index = 0; index < length; index++ ) {
    elem = elements[ index ];
    if ( !elem.style ) {
      continue;
    }
    if ( !show || elem.style.display === "none" || elem.style.display === "" ) {
      elem.style.display = show ? values[ index ] || "" : "none";
    }
  }

  return elements;
}

jQuery.extend({

  // Add in style property hooks for overriding the default
  // behavior of getting and setting a style property
  cssHooks: {
    opacity: {
      get: function( elem, computed ) {
        if ( computed ) {

          // We should always get a number back from opacity
          var ret = curCSS( elem, "opacity" );
          return ret === "" ? "1" : ret;
        }
      }
    }
  },

  // Don't automatically add "px" to these possibly-unitless properties
  cssNumber: {
    "columnCount": true,
    "fillOpacity": true,
    "flexGrow": true,
    "flexShrink": true,
    "fontWeight": true,
    "lineHeight": true,
    "opacity": true,
    "order": true,
    "orphans": true,
    "widows": true,
    "zIndex": true,
    "zoom": true
  },

  // Add in properties whose names you wish to fix before
  // setting or getting the value
  cssProps: {
    "float": "cssFloat"
  },

  // Get and set the style property on a DOM Node
  style: function( elem, name, value, extra ) {

    // Don't set styles on text and comment nodes
    if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
      return;
    }

    // Make sure that we're working with the right name
    var ret, type, hooks,
      origName = jQuery.camelCase( name ),
      style = elem.style;

    name = jQuery.cssProps[ origName ] || ( jQuery.cssProps[ origName ] = vendorPropName( style, origName ) );

    // Gets hook for the prefixed version, then unprefixed version
    hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];

    // Check if we're setting a value
    if ( value !== undefined ) {
      type = typeof value;

      // Convert "+=" or "-=" to relative numbers (#7345)
      if ( type === "string" && (ret = rrelNum.exec( value )) ) {
        value = ( ret[1] + 1 ) * ret[2] + parseFloat( jQuery.css( elem, name ) );
        // Fixes bug #9237
        type = "number";
      }

      // Make sure that null and NaN values aren't set (#7116)
      if ( value == null || value !== value ) {
        return;
      }

      // If a number, add 'px' to the (except for certain CSS properties)
      if ( type === "number" && !jQuery.cssNumber[ origName ] ) {
        value += "px";
      }

      // Support: IE9-11+
      // background-* props affect original clone's values
      if ( !support.clearCloneStyle && value === "" && name.indexOf( "background" ) === 0 ) {
        style[ name ] = "inherit";
      }

      // If a hook was provided, use that value, otherwise just set the specified value
      if ( !hooks || !("set" in hooks) || (value = hooks.set( elem, value, extra )) !== undefined ) {
        style[ name ] = value;
      }

    } else {
      // If a hook was provided get the non-computed value from there
      if ( hooks && "get" in hooks && (ret = hooks.get( elem, false, extra )) !== undefined ) {
        return ret;
      }

      // Otherwise just get the value from the style object
      return style[ name ];
    }
  },

  css: function( elem, name, extra, styles ) {
    var val, num, hooks,
      origName = jQuery.camelCase( name );

    // Make sure that we're working with the right name
    name = jQuery.cssProps[ origName ] || ( jQuery.cssProps[ origName ] = vendorPropName( elem.style, origName ) );

    // Try prefixed name followed by the unprefixed name
    hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];

    // If a hook was provided get the computed value from there
    if ( hooks && "get" in hooks ) {
      val = hooks.get( elem, true, extra );
    }

    // Otherwise, if a way to get the computed value exists, use that
    if ( val === undefined ) {
      val = curCSS( elem, name, styles );
    }

    // Convert "normal" to computed value
    if ( val === "normal" && name in cssNormalTransform ) {
      val = cssNormalTransform[ name ];
    }

    // Make numeric if forced or a qualifier was provided and val looks numeric
    if ( extra === "" || extra ) {
      num = parseFloat( val );
      return extra === true || jQuery.isNumeric( num ) ? num || 0 : val;
    }
    return val;
  }
});

jQuery.each([ "height", "width" ], function( i, name ) {
  jQuery.cssHooks[ name ] = {
    get: function( elem, computed, extra ) {
      if ( computed ) {

        // Certain elements can have dimension info if we invisibly show them
        // but it must have a current display style that would benefit
        return rdisplayswap.test( jQuery.css( elem, "display" ) ) && elem.offsetWidth === 0 ?
          jQuery.swap( elem, cssShow, function() {
            return getWidthOrHeight( elem, name, extra );
          }) :
          getWidthOrHeight( elem, name, extra );
      }
    },

    set: function( elem, value, extra ) {
      var styles = extra && getStyles( elem );
      return setPositiveNumber( elem, value, extra ?
        augmentWidthOrHeight(
          elem,
          name,
          extra,
          jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
          styles
        ) : 0
      );
    }
  };
});

// Support: Android 2.3
jQuery.cssHooks.marginRight = addGetHookIf( support.reliableMarginRight,
  function( elem, computed ) {
    if ( computed ) {
      return jQuery.swap( elem, { "display": "inline-block" },
        curCSS, [ elem, "marginRight" ] );
    }
  }
);

// These hooks are used by animate to expand properties
jQuery.each({
  margin: "",
  padding: "",
  border: "Width"
}, function( prefix, suffix ) {
  jQuery.cssHooks[ prefix + suffix ] = {
    expand: function( value ) {
      var i = 0,
        expanded = {},

        // Assumes a single number if not a string
        parts = typeof value === "string" ? value.split(" ") : [ value ];

      for ( ; i < 4; i++ ) {
        expanded[ prefix + cssExpand[ i ] + suffix ] =
          parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
      }

      return expanded;
    }
  };

  if ( !rmargin.test( prefix ) ) {
    jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;
  }
});

jQuery.fn.extend({
  css: function( name, value ) {
    return access( this, function( elem, name, value ) {
      var styles, len,
        map = {},
        i = 0;

      if ( jQuery.isArray( name ) ) {
        styles = getStyles( elem );
        len = name.length;

        for ( ; i < len; i++ ) {
          map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );
        }

        return map;
      }

      return value !== undefined ?
        jQuery.style( elem, name, value ) :
        jQuery.css( elem, name );
    }, name, value, arguments.length > 1 );
  },
  show: function() {
    return showHide( this, true );
  },
  hide: function() {
    return showHide( this );
  },
  toggle: function( state ) {
    if ( typeof state === "boolean" ) {
      return state ? this.show() : this.hide();
    }

    return this.each(function() {
      if ( isHidden( this ) ) {
        jQuery( this ).show();
      } else {
        jQuery( this ).hide();
      }
    });
  }
});


function Tween( elem, options, prop, end, easing ) {
  return new Tween.prototype.init( elem, options, prop, end, easing );
}
jQuery.Tween = Tween;

Tween.prototype = {
  constructor: Tween,
  init: function( elem, options, prop, end, easing, unit ) {
    this.elem = elem;
    this.prop = prop;
    this.easing = easing || "swing";
    this.options = options;
    this.start = this.now = this.cur();
    this.end = end;
    this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" );
  },
  cur: function() {
    var hooks = Tween.propHooks[ this.prop ];

    return hooks && hooks.get ?
      hooks.get( this ) :
      Tween.propHooks._default.get( this );
  },
  run: function( percent ) {
    var eased,
      hooks = Tween.propHooks[ this.prop ];

    if ( this.options.duration ) {
      this.pos = eased = jQuery.easing[ this.easing ](
        percent, this.options.duration * percent, 0, 1, this.options.duration
      );
    } else {
      this.pos = eased = percent;
    }
    this.now = ( this.end - this.start ) * eased + this.start;

    if ( this.options.step ) {
      this.options.step.call( this.elem, this.now, this );
    }

    if ( hooks && hooks.set ) {
      hooks.set( this );
    } else {
      Tween.propHooks._default.set( this );
    }
    return this;
  }
};

Tween.prototype.init.prototype = Tween.prototype;

Tween.propHooks = {
  _default: {
    get: function( tween ) {
      var result;

      if ( tween.elem[ tween.prop ] != null &&
        (!tween.elem.style || tween.elem.style[ tween.prop ] == null) ) {
        return tween.elem[ tween.prop ];
      }

      // Passing an empty string as a 3rd parameter to .css will automatically
      // attempt a parseFloat and fallback to a string if the parse fails.
      // Simple values such as "10px" are parsed to Float;
      // complex values such as "rotate(1rad)" are returned as-is.
      result = jQuery.css( tween.elem, tween.prop, "" );
      // Empty strings, null, undefined and "auto" are converted to 0.
      return !result || result === "auto" ? 0 : result;
    },
    set: function( tween ) {
      // Use step hook for back compat.
      // Use cssHook if its there.
      // Use .style if available and use plain properties where available.
      if ( jQuery.fx.step[ tween.prop ] ) {
        jQuery.fx.step[ tween.prop ]( tween );
      } else if ( tween.elem.style && ( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null || jQuery.cssHooks[ tween.prop ] ) ) {
        jQuery.style( tween.elem, tween.prop, tween.now + tween.unit );
      } else {
        tween.elem[ tween.prop ] = tween.now;
      }
    }
  }
};

// Support: IE9
// Panic based approach to setting things on disconnected nodes
Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {
  set: function( tween ) {
    if ( tween.elem.nodeType && tween.elem.parentNode ) {
      tween.elem[ tween.prop ] = tween.now;
    }
  }
};

jQuery.easing = {
  linear: function( p ) {
    return p;
  },
  swing: function( p ) {
    return 0.5 - Math.cos( p * Math.PI ) / 2;
  }
};

jQuery.fx = Tween.prototype.init;

// Back Compat <1.8 extension point
jQuery.fx.step = {};




var
  fxNow, timerId,
  rfxtypes = /^(?:toggle|show|hide)$/,
  rfxnum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" ),
  rrun = /queueHooks$/,
  animationPrefilters = [ defaultPrefilter ],
  tweeners = {
    "*": [ function( prop, value ) {
      var tween = this.createTween( prop, value ),
        target = tween.cur(),
        parts = rfxnum.exec( value ),
        unit = parts && parts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ),

        // Starting value computation is required for potential unit mismatches
        start = ( jQuery.cssNumber[ prop ] || unit !== "px" && +target ) &&
          rfxnum.exec( jQuery.css( tween.elem, prop ) ),
        scale = 1,
        maxIterations = 20;

      if ( start && start[ 3 ] !== unit ) {
        // Trust units reported by jQuery.css
        unit = unit || start[ 3 ];

        // Make sure we update the tween properties later on
        parts = parts || [];

        // Iteratively approximate from a nonzero starting point
        start = +target || 1;

        do {
          // If previous iteration zeroed out, double until we get *something*.
          // Use string for doubling so we don't accidentally see scale as unchanged below
          scale = scale || ".5";

          // Adjust and apply
          start = start / scale;
          jQuery.style( tween.elem, prop, start + unit );

        // Update scale, tolerating zero or NaN from tween.cur(),
        // break the loop if scale is unchanged or perfect, or if we've just had enough
        } while ( scale !== (scale = tween.cur() / target) && scale !== 1 && --maxIterations );
      }

      // Update tween properties
      if ( parts ) {
        start = tween.start = +start || +target || 0;
        tween.unit = unit;
        // If a +=/-= token was provided, we're doing a relative animation
        tween.end = parts[ 1 ] ?
          start + ( parts[ 1 ] + 1 ) * parts[ 2 ] :
          +parts[ 2 ];
      }

      return tween;
    } ]
  };

// Animations created synchronously will run synchronously
function createFxNow() {
  setTimeout(function() {
    fxNow = undefined;
  });
  return ( fxNow = jQuery.now() );
}

// Generate parameters to create a standard animation
function genFx( type, includeWidth ) {
  var which,
    i = 0,
    attrs = { height: type };

  // If we include width, step value is 1 to do all cssExpand values,
  // otherwise step value is 2 to skip over Left and Right
  includeWidth = includeWidth ? 1 : 0;
  for ( ; i < 4 ; i += 2 - includeWidth ) {
    which = cssExpand[ i ];
    attrs[ "margin" + which ] = attrs[ "padding" + which ] = type;
  }

  if ( includeWidth ) {
    attrs.opacity = attrs.width = type;
  }

  return attrs;
}

function createTween( value, prop, animation ) {
  var tween,
    collection = ( tweeners[ prop ] || [] ).concat( tweeners[ "*" ] ),
    index = 0,
    length = collection.length;
  for ( ; index < length; index++ ) {
    if ( (tween = collection[ index ].call( animation, prop, value )) ) {

      // We're done with this property
      return tween;
    }
  }
}

function defaultPrefilter( elem, props, opts ) {
  /* jshint validthis: true */
  var prop, value, toggle, tween, hooks, oldfire, display, checkDisplay,
    anim = this,
    orig = {},
    style = elem.style,
    hidden = elem.nodeType && isHidden( elem ),
    dataShow = data_priv.get( elem, "fxshow" );

  // Handle queue: false promises
  if ( !opts.queue ) {
    hooks = jQuery._queueHooks( elem, "fx" );
    if ( hooks.unqueued == null ) {
      hooks.unqueued = 0;
      oldfire = hooks.empty.fire;
      hooks.empty.fire = function() {
        if ( !hooks.unqueued ) {
          oldfire();
        }
      };
    }
    hooks.unqueued++;

    anim.always(function() {
      // Ensure the complete handler is called before this completes
      anim.always(function() {
        hooks.unqueued--;
        if ( !jQuery.queue( elem, "fx" ).length ) {
          hooks.empty.fire();
        }
      });
    });
  }

  // Height/width overflow pass
  if ( elem.nodeType === 1 && ( "height" in props || "width" in props ) ) {
    // Make sure that nothing sneaks out
    // Record all 3 overflow attributes because IE9-10 do not
    // change the overflow attribute when overflowX and
    // overflowY are set to the same value
    opts.overflow = [ style.overflow, style.overflowX, style.overflowY ];

    // Set display property to inline-block for height/width
    // animations on inline elements that are having width/height animated
    display = jQuery.css( elem, "display" );

    // Test default display if display is currently "none"
    checkDisplay = display === "none" ?
      data_priv.get( elem, "olddisplay" ) || defaultDisplay( elem.nodeName ) : display;

    if ( checkDisplay === "inline" && jQuery.css( elem, "float" ) === "none" ) {
      style.display = "inline-block";
    }
  }

  if ( opts.overflow ) {
    style.overflow = "hidden";
    anim.always(function() {
      style.overflow = opts.overflow[ 0 ];
      style.overflowX = opts.overflow[ 1 ];
      style.overflowY = opts.overflow[ 2 ];
    });
  }

  // show/hide pass
  for ( prop in props ) {
    value = props[ prop ];
    if ( rfxtypes.exec( value ) ) {
      delete props[ prop ];
      toggle = toggle || value === "toggle";
      if ( value === ( hidden ? "hide" : "show" ) ) {

        // If there is dataShow left over from a stopped hide or show and we are going to proceed with show, we should pretend to be hidden
        if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) {
          hidden = true;
        } else {
          continue;
        }
      }
      orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop );

    // Any non-fx value stops us from restoring the original display value
    } else {
      display = undefined;
    }
  }

  if ( !jQuery.isEmptyObject( orig ) ) {
    if ( dataShow ) {
      if ( "hidden" in dataShow ) {
        hidden = dataShow.hidden;
      }
    } else {
      dataShow = data_priv.access( elem, "fxshow", {} );
    }

    // Store state if its toggle - enables .stop().toggle() to "reverse"
    if ( toggle ) {
      dataShow.hidden = !hidden;
    }
    if ( hidden ) {
      jQuery( elem ).show();
    } else {
      anim.done(function() {
        jQuery( elem ).hide();
      });
    }
    anim.done(function() {
      var prop;

      data_priv.remove( elem, "fxshow" );
      for ( prop in orig ) {
        jQuery.style( elem, prop, orig[ prop ] );
      }
    });
    for ( prop in orig ) {
      tween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim );

      if ( !( prop in dataShow ) ) {
        dataShow[ prop ] = tween.start;
        if ( hidden ) {
          tween.end = tween.start;
          tween.start = prop === "width" || prop === "height" ? 1 : 0;
        }
      }
    }

  // If this is a noop like .hide().hide(), restore an overwritten display value
  } else if ( (display === "none" ? defaultDisplay( elem.nodeName ) : display) === "inline" ) {
    style.display = display;
  }
}

function propFilter( props, specialEasing ) {
  var index, name, easing, value, hooks;

  // camelCase, specialEasing and expand cssHook pass
  for ( index in props ) {
    name = jQuery.camelCase( index );
    easing = specialEasing[ name ];
    value = props[ index ];
    if ( jQuery.isArray( value ) ) {
      easing = value[ 1 ];
      value = props[ index ] = value[ 0 ];
    }

    if ( index !== name ) {
      props[ name ] = value;
      delete props[ index ];
    }

    hooks = jQuery.cssHooks[ name ];
    if ( hooks && "expand" in hooks ) {
      value = hooks.expand( value );
      delete props[ name ];

      // Not quite $.extend, this won't overwrite existing keys.
      // Reusing 'index' because we have the correct "name"
      for ( index in value ) {
        if ( !( index in props ) ) {
          props[ index ] = value[ index ];
          specialEasing[ index ] = easing;
        }
      }
    } else {
      specialEasing[ name ] = easing;
    }
  }
}

function Animation( elem, properties, options ) {
  var result,
    stopped,
    index = 0,
    length = animationPrefilters.length,
    deferred = jQuery.Deferred().always( function() {
      // Don't match elem in the :animated selector
      delete tick.elem;
    }),
    tick = function() {
      if ( stopped ) {
        return false;
      }
      var currentTime = fxNow || createFxNow(),
        remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),
        // Support: Android 2.3
        // Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497)
        temp = remaining / animation.duration || 0,
        percent = 1 - temp,
        index = 0,
        length = animation.tweens.length;

      for ( ; index < length ; index++ ) {
        animation.tweens[ index ].run( percent );
      }

      deferred.notifyWith( elem, [ animation, percent, remaining ]);

      if ( percent < 1 && length ) {
        return remaining;
      } else {
        deferred.resolveWith( elem, [ animation ] );
        return false;
      }
    },
    animation = deferred.promise({
      elem: elem,
      props: jQuery.extend( {}, properties ),
      opts: jQuery.extend( true, { specialEasing: {} }, options ),
      originalProperties: properties,
      originalOptions: options,
      startTime: fxNow || createFxNow(),
      duration: options.duration,
      tweens: [],
      createTween: function( prop, end ) {
        var tween = jQuery.Tween( elem, animation.opts, prop, end,
            animation.opts.specialEasing[ prop ] || animation.opts.easing );
        animation.tweens.push( tween );
        return tween;
      },
      stop: function( gotoEnd ) {
        var index = 0,
          // If we are going to the end, we want to run all the tweens
          // otherwise we skip this part
          length = gotoEnd ? animation.tweens.length : 0;
        if ( stopped ) {
          return this;
        }
        stopped = true;
        for ( ; index < length ; index++ ) {
          animation.tweens[ index ].run( 1 );
        }

        // Resolve when we played the last frame; otherwise, reject
        if ( gotoEnd ) {
          deferred.resolveWith( elem, [ animation, gotoEnd ] );
        } else {
          deferred.rejectWith( elem, [ animation, gotoEnd ] );
        }
        return this;
      }
    }),
    props = animation.props;

  propFilter( props, animation.opts.specialEasing );

  for ( ; index < length ; index++ ) {
    result = animationPrefilters[ index ].call( animation, elem, props, animation.opts );
    if ( result ) {
      return result;
    }
  }

  jQuery.map( props, createTween, animation );

  if ( jQuery.isFunction( animation.opts.start ) ) {
    animation.opts.start.call( elem, animation );
  }

  jQuery.fx.timer(
    jQuery.extend( tick, {
      elem: elem,
      anim: animation,
      queue: animation.opts.queue
    })
  );

  // attach callbacks from options
  return animation.progress( animation.opts.progress )
    .done( animation.opts.done, animation.opts.complete )
    .fail( animation.opts.fail )
    .always( animation.opts.always );
}

jQuery.Animation = jQuery.extend( Animation, {

  tweener: function( props, callback ) {
    if ( jQuery.isFunction( props ) ) {
      callback = props;
      props = [ "*" ];
    } else {
      props = props.split(" ");
    }

    var prop,
      index = 0,
      length = props.length;

    for ( ; index < length ; index++ ) {
      prop = props[ index ];
      tweeners[ prop ] = tweeners[ prop ] || [];
      tweeners[ prop ].unshift( callback );
    }
  },

  prefilter: function( callback, prepend ) {
    if ( prepend ) {
      animationPrefilters.unshift( callback );
    } else {
      animationPrefilters.push( callback );
    }
  }
});

jQuery.speed = function( speed, easing, fn ) {
  var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : {
    complete: fn || !fn && easing ||
      jQuery.isFunction( speed ) && speed,
    duration: speed,
    easing: fn && easing || easing && !jQuery.isFunction( easing ) && easing
  };

  opt.duration = jQuery.fx.off ? 0 : typeof opt.duration === "number" ? opt.duration :
    opt.duration in jQuery.fx.speeds ? jQuery.fx.speeds[ opt.duration ] : jQuery.fx.speeds._default;

  // Normalize opt.queue - true/undefined/null -> "fx"
  if ( opt.queue == null || opt.queue === true ) {
    opt.queue = "fx";
  }

  // Queueing
  opt.old = opt.complete;

  opt.complete = function() {
    if ( jQuery.isFunction( opt.old ) ) {
      opt.old.call( this );
    }

    if ( opt.queue ) {
      jQuery.dequeue( this, opt.queue );
    }
  };

  return opt;
};

jQuery.fn.extend({
  fadeTo: function( speed, to, easing, callback ) {

    // Show any hidden elements after setting opacity to 0
    return this.filter( isHidden ).css( "opacity", 0 ).show()

      // Animate to the value specified
      .end().animate({ opacity: to }, speed, easing, callback );
  },
  animate: function( prop, speed, easing, callback ) {
    var empty = jQuery.isEmptyObject( prop ),
      optall = jQuery.speed( speed, easing, callback ),
      doAnimation = function() {
        // Operate on a copy of prop so per-property easing won't be lost
        var anim = Animation( this, jQuery.extend( {}, prop ), optall );

        // Empty animations, or finishing resolves immediately
        if ( empty || data_priv.get( this, "finish" ) ) {
          anim.stop( true );
        }
      };
      doAnimation.finish = doAnimation;

    return empty || optall.queue === false ?
      this.each( doAnimation ) :
      this.queue( optall.queue, doAnimation );
  },
  stop: function( type, clearQueue, gotoEnd ) {
    var stopQueue = function( hooks ) {
      var stop = hooks.stop;
      delete hooks.stop;
      stop( gotoEnd );
    };

    if ( typeof type !== "string" ) {
      gotoEnd = clearQueue;
      clearQueue = type;
      type = undefined;
    }
    if ( clearQueue && type !== false ) {
      this.queue( type || "fx", [] );
    }

    return this.each(function() {
      var dequeue = true,
        index = type != null && type + "queueHooks",
        timers = jQuery.timers,
        data = data_priv.get( this );

      if ( index ) {
        if ( data[ index ] && data[ index ].stop ) {
          stopQueue( data[ index ] );
        }
      } else {
        for ( index in data ) {
          if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {
            stopQueue( data[ index ] );
          }
        }
      }

      for ( index = timers.length; index--; ) {
        if ( timers[ index ].elem === this && (type == null || timers[ index ].queue === type) ) {
          timers[ index ].anim.stop( gotoEnd );
          dequeue = false;
          timers.splice( index, 1 );
        }
      }

      // Start the next in the queue if the last step wasn't forced.
      // Timers currently will call their complete callbacks, which
      // will dequeue but only if they were gotoEnd.
      if ( dequeue || !gotoEnd ) {
        jQuery.dequeue( this, type );
      }
    });
  },
  finish: function( type ) {
    if ( type !== false ) {
      type = type || "fx";
    }
    return this.each(function() {
      var index,
        data = data_priv.get( this ),
        queue = data[ type + "queue" ],
        hooks = data[ type + "queueHooks" ],
        timers = jQuery.timers,
        length = queue ? queue.length : 0;

      // Enable finishing flag on private data
      data.finish = true;

      // Empty the queue first
      jQuery.queue( this, type, [] );

      if ( hooks && hooks.stop ) {
        hooks.stop.call( this, true );
      }

      // Look for any active animations, and finish them
      for ( index = timers.length; index--; ) {
        if ( timers[ index ].elem === this && timers[ index ].queue === type ) {
          timers[ index ].anim.stop( true );
          timers.splice( index, 1 );
        }
      }

      // Look for any animations in the old queue and finish them
      for ( index = 0; index < length; index++ ) {
        if ( queue[ index ] && queue[ index ].finish ) {
          queue[ index ].finish.call( this );
        }
      }

      // Turn off finishing flag
      delete data.finish;
    });
  }
});

jQuery.each([ "toggle", "show", "hide" ], function( i, name ) {
  var cssFn = jQuery.fn[ name ];
  jQuery.fn[ name ] = function( speed, easing, callback ) {
    return speed == null || typeof speed === "boolean" ?
      cssFn.apply( this, arguments ) :
      this.animate( genFx( name, true ), speed, easing, callback );
  };
});

// Generate shortcuts for custom animations
jQuery.each({
  slideDown: genFx("show"),
  slideUp: genFx("hide"),
  slideToggle: genFx("toggle"),
  fadeIn: { opacity: "show" },
  fadeOut: { opacity: "hide" },
  fadeToggle: { opacity: "toggle" }
}, function( name, props ) {
  jQuery.fn[ name ] = function( speed, easing, callback ) {
    return this.animate( props, speed, easing, callback );
  };
});

jQuery.timers = [];
jQuery.fx.tick = function() {
  var timer,
    i = 0,
    timers = jQuery.timers;

  fxNow = jQuery.now();

  for ( ; i < timers.length; i++ ) {
    timer = timers[ i ];
    // Checks the timer has not already been removed
    if ( !timer() && timers[ i ] === timer ) {
      timers.splice( i--, 1 );
    }
  }

  if ( !timers.length ) {
    jQuery.fx.stop();
  }
  fxNow = undefined;
};

jQuery.fx.timer = function( timer ) {
  jQuery.timers.push( timer );
  if ( timer() ) {
    jQuery.fx.start();
  } else {
    jQuery.timers.pop();
  }
};

jQuery.fx.interval = 13;

jQuery.fx.start = function() {
  if ( !timerId ) {
    timerId = setInterval( jQuery.fx.tick, jQuery.fx.interval );
  }
};

jQuery.fx.stop = function() {
  clearInterval( timerId );
  timerId = null;
};

jQuery.fx.speeds = {
  slow: 600,
  fast: 200,
  // Default speed
  _default: 400
};


// Based off of the plugin by Clint Helfers, with permission.
// http://blindsignals.com/index.php/2009/07/jquery-delay/
jQuery.fn.delay = function( time, type ) {
  time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;
  type = type || "fx";

  return this.queue( type, function( next, hooks ) {
    var timeout = setTimeout( next, time );
    hooks.stop = function() {
      clearTimeout( timeout );
    };
  });
};


(function() {
  var input = document.createElement( "input" ),
    select = document.createElement( "select" ),
    opt = select.appendChild( document.createElement( "option" ) );

  input.type = "checkbox";

  // Support: iOS<=5.1, Android<=4.2+
  // Default value for a checkbox should be "on"
  support.checkOn = input.value !== "";

  // Support: IE<=11+
  // Must access selectedIndex to make default options select
  support.optSelected = opt.selected;

  // Support: Android<=2.3
  // Options inside disabled selects are incorrectly marked as disabled
  select.disabled = true;
  support.optDisabled = !opt.disabled;

  // Support: IE<=11+
  // An input loses its value after becoming a radio
  input = document.createElement( "input" );
  input.value = "t";
  input.type = "radio";
  support.radioValue = input.value === "t";
})();


var nodeHook, boolHook,
  attrHandle = jQuery.expr.attrHandle;

jQuery.fn.extend({
  attr: function( name, value ) {
    return access( this, jQuery.attr, name, value, arguments.length > 1 );
  },

  removeAttr: function( name ) {
    return this.each(function() {
      jQuery.removeAttr( this, name );
    });
  }
});

jQuery.extend({
  attr: function( elem, name, value ) {
    var hooks, ret,
      nType = elem.nodeType;

    // don't get/set attributes on text, comment and attribute nodes
    if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
      return;
    }

    // Fallback to prop when attributes are not supported
    if ( typeof elem.getAttribute === strundefined ) {
      return jQuery.prop( elem, name, value );
    }

    // All attributes are lowercase
    // Grab necessary hook if one is defined
    if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
      name = name.toLowerCase();
      hooks = jQuery.attrHooks[ name ] ||
        ( jQuery.expr.match.bool.test( name ) ? boolHook : nodeHook );
    }

    if ( value !== undefined ) {

      if ( value === null ) {
        jQuery.removeAttr( elem, name );

      } else if ( hooks && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ) {
        return ret;

      } else {
        elem.setAttribute( name, value + "" );
        return value;
      }

    } else if ( hooks && "get" in hooks && (ret = hooks.get( elem, name )) !== null ) {
      return ret;

    } else {
      ret = jQuery.find.attr( elem, name );

      // Non-existent attributes return null, we normalize to undefined
      return ret == null ?
        undefined :
        ret;
    }
  },

  removeAttr: function( elem, value ) {
    var name, propName,
      i = 0,
      attrNames = value && value.match( rnotwhite );

    if ( attrNames && elem.nodeType === 1 ) {
      while ( (name = attrNames[i++]) ) {
        propName = jQuery.propFix[ name ] || name;

        // Boolean attributes get special treatment (#10870)
        if ( jQuery.expr.match.bool.test( name ) ) {
          // Set corresponding property to false
          elem[ propName ] = false;
        }

        elem.removeAttribute( name );
      }
    }
  },

  attrHooks: {
    type: {
      set: function( elem, value ) {
        if ( !support.radioValue && value === "radio" &&
          jQuery.nodeName( elem, "input" ) ) {
          var val = elem.value;
          elem.setAttribute( "type", value );
          if ( val ) {
            elem.value = val;
          }
          return value;
        }
      }
    }
  }
});

// Hooks for boolean attributes
boolHook = {
  set: function( elem, value, name ) {
    if ( value === false ) {
      // Remove boolean attributes when set to false
      jQuery.removeAttr( elem, name );
    } else {
      elem.setAttribute( name, name );
    }
    return name;
  }
};
jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) {
  var getter = attrHandle[ name ] || jQuery.find.attr;

  attrHandle[ name ] = function( elem, name, isXML ) {
    var ret, handle;
    if ( !isXML ) {
      // Avoid an infinite loop by temporarily removing this function from the getter
      handle = attrHandle[ name ];
      attrHandle[ name ] = ret;
      ret = getter( elem, name, isXML ) != null ?
        name.toLowerCase() :
        null;
      attrHandle[ name ] = handle;
    }
    return ret;
  };
});




var rfocusable = /^(?:input|select|textarea|button)$/i;

jQuery.fn.extend({
  prop: function( name, value ) {
    return access( this, jQuery.prop, name, value, arguments.length > 1 );
  },

  removeProp: function( name ) {
    return this.each(function() {
      delete this[ jQuery.propFix[ name ] || name ];
    });
  }
});

jQuery.extend({
  propFix: {
    "for": "htmlFor",
    "class": "className"
  },

  prop: function( elem, name, value ) {
    var ret, hooks, notxml,
      nType = elem.nodeType;

    // Don't get/set properties on text, comment and attribute nodes
    if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
      return;
    }

    notxml = nType !== 1 || !jQuery.isXMLDoc( elem );

    if ( notxml ) {
      // Fix name and attach hooks
      name = jQuery.propFix[ name ] || name;
      hooks = jQuery.propHooks[ name ];
    }

    if ( value !== undefined ) {
      return hooks && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ?
        ret :
        ( elem[ name ] = value );

    } else {
      return hooks && "get" in hooks && (ret = hooks.get( elem, name )) !== null ?
        ret :
        elem[ name ];
    }
  },

  propHooks: {
    tabIndex: {
      get: function( elem ) {
        return elem.hasAttribute( "tabindex" ) || rfocusable.test( elem.nodeName ) || elem.href ?
          elem.tabIndex :
          -1;
      }
    }
  }
});

if ( !support.optSelected ) {
  jQuery.propHooks.selected = {
    get: function( elem ) {
      var parent = elem.parentNode;
      if ( parent && parent.parentNode ) {
        parent.parentNode.selectedIndex;
      }
      return null;
    }
  };
}

jQuery.each([
  "tabIndex",
  "readOnly",
  "maxLength",
  "cellSpacing",
  "cellPadding",
  "rowSpan",
  "colSpan",
  "useMap",
  "frameBorder",
  "contentEditable"
], function() {
  jQuery.propFix[ this.toLowerCase() ] = this;
});




var rclass = /[\t\r\n\f]/g;

jQuery.fn.extend({
  addClass: function( value ) {
    var classes, elem, cur, clazz, j, finalValue,
      proceed = typeof value === "string" && value,
      i = 0,
      len = this.length;

    if ( jQuery.isFunction( value ) ) {
      return this.each(function( j ) {
        jQuery( this ).addClass( value.call( this, j, this.className ) );
      });
    }

    if ( proceed ) {
      // The disjunction here is for better compressibility (see removeClass)
      classes = ( value || "" ).match( rnotwhite ) || [];

      for ( ; i < len; i++ ) {
        elem = this[ i ];
        cur = elem.nodeType === 1 && ( elem.className ?
          ( " " + elem.className + " " ).replace( rclass, " " ) :
          " "
        );

        if ( cur ) {
          j = 0;
          while ( (clazz = classes[j++]) ) {
            if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
              cur += clazz + " ";
            }
          }

          // only assign if different to avoid unneeded rendering.
          finalValue = jQuery.trim( cur );
          if ( elem.className !== finalValue ) {
            elem.className = finalValue;
          }
        }
      }
    }

    return this;
  },

  removeClass: function( value ) {
    var classes, elem, cur, clazz, j, finalValue,
      proceed = arguments.length === 0 || typeof value === "string" && value,
      i = 0,
      len = this.length;

    if ( jQuery.isFunction( value ) ) {
      return this.each(function( j ) {
        jQuery( this ).removeClass( value.call( this, j, this.className ) );
      });
    }
    if ( proceed ) {
      classes = ( value || "" ).match( rnotwhite ) || [];

      for ( ; i < len; i++ ) {
        elem = this[ i ];
        // This expression is here for better compressibility (see addClass)
        cur = elem.nodeType === 1 && ( elem.className ?
          ( " " + elem.className + " " ).replace( rclass, " " ) :
          ""
        );

        if ( cur ) {
          j = 0;
          while ( (clazz = classes[j++]) ) {
            // Remove *all* instances
            while ( cur.indexOf( " " + clazz + " " ) >= 0 ) {
              cur = cur.replace( " " + clazz + " ", " " );
            }
          }

          // Only assign if different to avoid unneeded rendering.
          finalValue = value ? jQuery.trim( cur ) : "";
          if ( elem.className !== finalValue ) {
            elem.className = finalValue;
          }
        }
      }
    }

    return this;
  },

  toggleClass: function( value, stateVal ) {
    var type = typeof value;

    if ( typeof stateVal === "boolean" && type === "string" ) {
      return stateVal ? this.addClass( value ) : this.removeClass( value );
    }

    if ( jQuery.isFunction( value ) ) {
      return this.each(function( i ) {
        jQuery( this ).toggleClass( value.call(this, i, this.className, stateVal), stateVal );
      });
    }

    return this.each(function() {
      if ( type === "string" ) {
        // Toggle individual class names
        var className,
          i = 0,
          self = jQuery( this ),
          classNames = value.match( rnotwhite ) || [];

        while ( (className = classNames[ i++ ]) ) {
          // Check each className given, space separated list
          if ( self.hasClass( className ) ) {
            self.removeClass( className );
          } else {
            self.addClass( className );
          }
        }

      // Toggle whole class name
      } else if ( type === strundefined || type === "boolean" ) {
        if ( this.className ) {
          // store className if set
          data_priv.set( this, "__className__", this.className );
        }

        // If the element has a class name or if we're passed `false`,
        // then remove the whole classname (if there was one, the above saved it).
        // Otherwise bring back whatever was previously saved (if anything),
        // falling back to the empty string if nothing was stored.
        this.className = this.className || value === false ? "" : data_priv.get( this, "__className__" ) || "";
      }
    });
  },

  hasClass: function( selector ) {
    var className = " " + selector + " ",
      i = 0,
      l = this.length;
    for ( ; i < l; i++ ) {
      if ( this[i].nodeType === 1 && (" " + this[i].className + " ").replace(rclass, " ").indexOf( className ) >= 0 ) {
        return true;
      }
    }

    return false;
  }
});




var rreturn = /\r/g;

jQuery.fn.extend({
  val: function( value ) {
    var hooks, ret, isFunction,
      elem = this[0];

    if ( !arguments.length ) {
      if ( elem ) {
        hooks = jQuery.valHooks[ elem.type ] || jQuery.valHooks[ elem.nodeName.toLowerCase() ];

        if ( hooks && "get" in hooks && (ret = hooks.get( elem, "value" )) !== undefined ) {
          return ret;
        }

        ret = elem.value;

        return typeof ret === "string" ?
          // Handle most common string cases
          ret.replace(rreturn, "") :
          // Handle cases where value is null/undef or number
          ret == null ? "" : ret;
      }

      return;
    }

    isFunction = jQuery.isFunction( value );

    return this.each(function( i ) {
      var val;

      if ( this.nodeType !== 1 ) {
        return;
      }

      if ( isFunction ) {
        val = value.call( this, i, jQuery( this ).val() );
      } else {
        val = value;
      }

      // Treat null/undefined as ""; convert numbers to string
      if ( val == null ) {
        val = "";

      } else if ( typeof val === "number" ) {
        val += "";

      } else if ( jQuery.isArray( val ) ) {
        val = jQuery.map( val, function( value ) {
          return value == null ? "" : value + "";
        });
      }

      hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];

      // If set returns undefined, fall back to normal setting
      if ( !hooks || !("set" in hooks) || hooks.set( this, val, "value" ) === undefined ) {
        this.value = val;
      }
    });
  }
});

jQuery.extend({
  valHooks: {
    option: {
      get: function( elem ) {
        var val = jQuery.find.attr( elem, "value" );
        return val != null ?
          val :
          // Support: IE10-11+
          // option.text throws exceptions (#14686, #14858)
          jQuery.trim( jQuery.text( elem ) );
      }
    },
    select: {
      get: function( elem ) {
        var value, option,
          options = elem.options,
          index = elem.selectedIndex,
          one = elem.type === "select-one" || index < 0,
          values = one ? null : [],
          max = one ? index + 1 : options.length,
          i = index < 0 ?
            max :
            one ? index : 0;

        // Loop through all the selected options
        for ( ; i < max; i++ ) {
          option = options[ i ];

          // IE6-9 doesn't update selected after form reset (#2551)
          if ( ( option.selected || i === index ) &&
              // Don't return options that are disabled or in a disabled optgroup
              ( support.optDisabled ? !option.disabled : option.getAttribute( "disabled" ) === null ) &&
              ( !option.parentNode.disabled || !jQuery.nodeName( option.parentNode, "optgroup" ) ) ) {

            // Get the specific value for the option
            value = jQuery( option ).val();

            // We don't need an array for one selects
            if ( one ) {
              return value;
            }

            // Multi-Selects return an array
            values.push( value );
          }
        }

        return values;
      },

      set: function( elem, value ) {
        var optionSet, option,
          options = elem.options,
          values = jQuery.makeArray( value ),
          i = options.length;

        while ( i-- ) {
          option = options[ i ];
          if ( (option.selected = jQuery.inArray( option.value, values ) >= 0) ) {
            optionSet = true;
          }
        }

        // Force browsers to behave consistently when non-matching value is set
        if ( !optionSet ) {
          elem.selectedIndex = -1;
        }
        return values;
      }
    }
  }
});

// Radios and checkboxes getter/setter
jQuery.each([ "radio", "checkbox" ], function() {
  jQuery.valHooks[ this ] = {
    set: function( elem, value ) {
      if ( jQuery.isArray( value ) ) {
        return ( elem.checked = jQuery.inArray( jQuery(elem).val(), value ) >= 0 );
      }
    }
  };
  if ( !support.checkOn ) {
    jQuery.valHooks[ this ].get = function( elem ) {
      return elem.getAttribute("value") === null ? "on" : elem.value;
    };
  }
});




// Return jQuery for attributes-only inclusion


jQuery.each( ("blur focus focusin focusout load resize scroll unload click dblclick " +
  "mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
  "change select submit keydown keypress keyup error contextmenu").split(" "), function( i, name ) {

  // Handle event binding
  jQuery.fn[ name ] = function( data, fn ) {
    return arguments.length > 0 ?
      this.on( name, null, data, fn ) :
      this.trigger( name );
  };
});

jQuery.fn.extend({
  hover: function( fnOver, fnOut ) {
    return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
  },

  bind: function( types, data, fn ) {
    return this.on( types, null, data, fn );
  },
  unbind: function( types, fn ) {
    return this.off( types, null, fn );
  },

  delegate: function( selector, types, data, fn ) {
    return this.on( types, selector, data, fn );
  },
  undelegate: function( selector, types, fn ) {
    // ( namespace ) or ( selector, types [, fn] )
    return arguments.length === 1 ? this.off( selector, "**" ) : this.off( types, selector || "**", fn );
  }
});


var nonce = jQuery.now();

var rquery = (/\?/);



// Support: Android 2.3
// Workaround failure to string-cast null input
jQuery.parseJSON = function( data ) {
  return JSON.parse( data + "" );
};


// Cross-browser xml parsing
jQuery.parseXML = function( data ) {
  var xml, tmp;
  if ( !data || typeof data !== "string" ) {
    return null;
  }

  // Support: IE9
  try {
    tmp = new DOMParser();
    xml = tmp.parseFromString( data, "text/xml" );
  } catch ( e ) {
    xml = undefined;
  }

  if ( !xml || xml.getElementsByTagName( "parsererror" ).length ) {
    jQuery.error( "Invalid XML: " + data );
  }
  return xml;
};


var
  rhash = /#.*$/,
  rts = /([?&])_=[^&]*/,
  rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg,
  // #7653, #8125, #8152: local protocol detection
  rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
  rnoContent = /^(?:GET|HEAD)$/,
  rprotocol = /^\/\//,
  rurl = /^([\w.+-]+:)(?:\/\/(?:[^\/?#]*@|)([^\/?#:]*)(?::(\d+)|)|)/,

  /* Prefilters
   * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
   * 2) These are called:
   *    - BEFORE asking for a transport
   *    - AFTER param serialization (s.data is a string if s.processData is true)
   * 3) key is the dataType
   * 4) the catchall symbol "*" can be used
   * 5) execution will start with transport dataType and THEN continue down to "*" if needed
   */
  prefilters = {},

  /* Transports bindings
   * 1) key is the dataType
   * 2) the catchall symbol "*" can be used
   * 3) selection will start with transport dataType and THEN go to "*" if needed
   */
  transports = {},

  // Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
  allTypes = "*/".concat( "*" ),

  // Document location
  ajaxLocation = window.location.href,

  // Segment location into parts
  ajaxLocParts = rurl.exec( ajaxLocation.toLowerCase() ) || [];

// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
function addToPrefiltersOrTransports( structure ) {

  // dataTypeExpression is optional and defaults to "*"
  return function( dataTypeExpression, func ) {

    if ( typeof dataTypeExpression !== "string" ) {
      func = dataTypeExpression;
      dataTypeExpression = "*";
    }

    var dataType,
      i = 0,
      dataTypes = dataTypeExpression.toLowerCase().match( rnotwhite ) || [];

    if ( jQuery.isFunction( func ) ) {
      // For each dataType in the dataTypeExpression
      while ( (dataType = dataTypes[i++]) ) {
        // Prepend if requested
        if ( dataType[0] === "+" ) {
          dataType = dataType.slice( 1 ) || "*";
          (structure[ dataType ] = structure[ dataType ] || []).unshift( func );

        // Otherwise append
        } else {
          (structure[ dataType ] = structure[ dataType ] || []).push( func );
        }
      }
    }
  };
}

// Base inspection function for prefilters and transports
function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {

  var inspected = {},
    seekingTransport = ( structure === transports );

  function inspect( dataType ) {
    var selected;
    inspected[ dataType ] = true;
    jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {
      var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );
      if ( typeof dataTypeOrTransport === "string" && !seekingTransport && !inspected[ dataTypeOrTransport ] ) {
        options.dataTypes.unshift( dataTypeOrTransport );
        inspect( dataTypeOrTransport );
        return false;
      } else if ( seekingTransport ) {
        return !( selected = dataTypeOrTransport );
      }
    });
    return selected;
  }

  return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
}

// A special extend for ajax options
// that takes "flat" options (not to be deep extended)
// Fixes #9887
function ajaxExtend( target, src ) {
  var key, deep,
    flatOptions = jQuery.ajaxSettings.flatOptions || {};

  for ( key in src ) {
    if ( src[ key ] !== undefined ) {
      ( flatOptions[ key ] ? target : ( deep || (deep = {}) ) )[ key ] = src[ key ];
    }
  }
  if ( deep ) {
    jQuery.extend( true, target, deep );
  }

  return target;
}

/* Handles responses to an ajax request:
 * - finds the right dataType (mediates between content-type and expected dataType)
 * - returns the corresponding response
 */
function ajaxHandleResponses( s, jqXHR, responses ) {

  var ct, type, finalDataType, firstDataType,
    contents = s.contents,
    dataTypes = s.dataTypes;

  // Remove auto dataType and get content-type in the process
  while ( dataTypes[ 0 ] === "*" ) {
    dataTypes.shift();
    if ( ct === undefined ) {
      ct = s.mimeType || jqXHR.getResponseHeader("Content-Type");
    }
  }

  // Check if we're dealing with a known content-type
  if ( ct ) {
    for ( type in contents ) {
      if ( contents[ type ] && contents[ type ].test( ct ) ) {
        dataTypes.unshift( type );
        break;
      }
    }
  }

  // Check to see if we have a response for the expected dataType
  if ( dataTypes[ 0 ] in responses ) {
    finalDataType = dataTypes[ 0 ];
  } else {
    // Try convertible dataTypes
    for ( type in responses ) {
      if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[0] ] ) {
        finalDataType = type;
        break;
      }
      if ( !firstDataType ) {
        firstDataType = type;
      }
    }
    // Or just use first one
    finalDataType = finalDataType || firstDataType;
  }

  // If we found a dataType
  // We add the dataType to the list if needed
  // and return the corresponding response
  if ( finalDataType ) {
    if ( finalDataType !== dataTypes[ 0 ] ) {
      dataTypes.unshift( finalDataType );
    }
    return responses[ finalDataType ];
  }
}

/* Chain conversions given the request and the original response
 * Also sets the responseXXX fields on the jqXHR instance
 */
function ajaxConvert( s, response, jqXHR, isSuccess ) {
  var conv2, current, conv, tmp, prev,
    converters = {},
    // Work with a copy of dataTypes in case we need to modify it for conversion
    dataTypes = s.dataTypes.slice();

  // Create converters map with lowercased keys
  if ( dataTypes[ 1 ] ) {
    for ( conv in s.converters ) {
      converters[ conv.toLowerCase() ] = s.converters[ conv ];
    }
  }

  current = dataTypes.shift();

  // Convert to each sequential dataType
  while ( current ) {

    if ( s.responseFields[ current ] ) {
      jqXHR[ s.responseFields[ current ] ] = response;
    }

    // Apply the dataFilter if provided
    if ( !prev && isSuccess && s.dataFilter ) {
      response = s.dataFilter( response, s.dataType );
    }

    prev = current;
    current = dataTypes.shift();

    if ( current ) {

    // There's only work to do if current dataType is non-auto
      if ( current === "*" ) {

        current = prev;

      // Convert response if prev dataType is non-auto and differs from current
      } else if ( prev !== "*" && prev !== current ) {

        // Seek a direct converter
        conv = converters[ prev + " " + current ] || converters[ "* " + current ];

        // If none found, seek a pair
        if ( !conv ) {
          for ( conv2 in converters ) {

            // If conv2 outputs current
            tmp = conv2.split( " " );
            if ( tmp[ 1 ] === current ) {

              // If prev can be converted to accepted input
              conv = converters[ prev + " " + tmp[ 0 ] ] ||
                converters[ "* " + tmp[ 0 ] ];
              if ( conv ) {
                // Condense equivalence converters
                if ( conv === true ) {
                  conv = converters[ conv2 ];

                // Otherwise, insert the intermediate dataType
                } else if ( converters[ conv2 ] !== true ) {
                  current = tmp[ 0 ];
                  dataTypes.unshift( tmp[ 1 ] );
                }
                break;
              }
            }
          }
        }

        // Apply converter (if not an equivalence)
        if ( conv !== true ) {

          // Unless errors are allowed to bubble, catch and return them
          if ( conv && s[ "throws" ] ) {
            response = conv( response );
          } else {
            try {
              response = conv( response );
            } catch ( e ) {
              return { state: "parsererror", error: conv ? e : "No conversion from " + prev + " to " + current };
            }
          }
        }
      }
    }
  }

  return { state: "success", data: response };
}

jQuery.extend({

  // Counter for holding the number of active queries
  active: 0,

  // Last-Modified header cache for next request
  lastModified: {},
  etag: {},

  ajaxSettings: {
    url: ajaxLocation,
    type: "GET",
    isLocal: rlocalProtocol.test( ajaxLocParts[ 1 ] ),
    global: true,
    processData: true,
    async: true,
    contentType: "application/x-www-form-urlencoded; charset=UTF-8",
    /*
    timeout: 0,
    data: null,
    dataType: null,
    username: null,
    password: null,
    cache: null,
    throws: false,
    traditional: false,
    headers: {},
    */

    accepts: {
      "*": allTypes,
      text: "text/plain",
      html: "text/html",
      xml: "application/xml, text/xml",
      json: "application/json, text/javascript"
    },

    contents: {
      xml: /xml/,
      html: /html/,
      json: /json/
    },

    responseFields: {
      xml: "responseXML",
      text: "responseText",
      json: "responseJSON"
    },

    // Data converters
    // Keys separate source (or catchall "*") and destination types with a single space
    converters: {

      // Convert anything to text
      "* text": String,

      // Text to html (true = no transformation)
      "text html": true,

      // Evaluate text as a json expression
      "text json": jQuery.parseJSON,

      // Parse text as xml
      "text xml": jQuery.parseXML
    },

    // For options that shouldn't be deep extended:
    // you can add your own custom options here if
    // and when you create one that shouldn't be
    // deep extended (see ajaxExtend)
    flatOptions: {
      url: true,
      context: true
    }
  },

  // Creates a full fledged settings object into target
  // with both ajaxSettings and settings fields.
  // If target is omitted, writes into ajaxSettings.
  ajaxSetup: function( target, settings ) {
    return settings ?

      // Building a settings object
      ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :

      // Extending ajaxSettings
      ajaxExtend( jQuery.ajaxSettings, target );
  },

  ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
  ajaxTransport: addToPrefiltersOrTransports( transports ),

  // Main method
  ajax: function( url, options ) {

    // If url is an object, simulate pre-1.5 signature
    if ( typeof url === "object" ) {
      options = url;
      url = undefined;
    }

    // Force options to be an object
    options = options || {};

    var transport,
      // URL without anti-cache param
      cacheURL,
      // Response headers
      responseHeadersString,
      responseHeaders,
      // timeout handle
      timeoutTimer,
      // Cross-domain detection vars
      parts,
      // To know if global events are to be dispatched
      fireGlobals,
      // Loop variable
      i,
      // Create the final options object
      s = jQuery.ajaxSetup( {}, options ),
      // Callbacks context
      callbackContext = s.context || s,
      // Context for global events is callbackContext if it is a DOM node or jQuery collection
      globalEventContext = s.context && ( callbackContext.nodeType || callbackContext.jquery ) ?
        jQuery( callbackContext ) :
        jQuery.event,
      // Deferreds
      deferred = jQuery.Deferred(),
      completeDeferred = jQuery.Callbacks("once memory"),
      // Status-dependent callbacks
      statusCode = s.statusCode || {},
      // Headers (they are sent all at once)
      requestHeaders = {},
      requestHeadersNames = {},
      // The jqXHR state
      state = 0,
      // Default abort message
      strAbort = "canceled",
      // Fake xhr
      jqXHR = {
        readyState: 0,

        // Builds headers hashtable if needed
        getResponseHeader: function( key ) {
          var match;
          if ( state === 2 ) {
            if ( !responseHeaders ) {
              responseHeaders = {};
              while ( (match = rheaders.exec( responseHeadersString )) ) {
                responseHeaders[ match[1].toLowerCase() ] = match[ 2 ];
              }
            }
            match = responseHeaders[ key.toLowerCase() ];
          }
          return match == null ? null : match;
        },

        // Raw string
        getAllResponseHeaders: function() {
          return state === 2 ? responseHeadersString : null;
        },

        // Caches the header
        setRequestHeader: function( name, value ) {
          var lname = name.toLowerCase();
          if ( !state ) {
            name = requestHeadersNames[ lname ] = requestHeadersNames[ lname ] || name;
            requestHeaders[ name ] = value;
          }
          return this;
        },

        // Overrides response content-type header
        overrideMimeType: function( type ) {
          if ( !state ) {
            s.mimeType = type;
          }
          return this;
        },

        // Status-dependent callbacks
        statusCode: function( map ) {
          var code;
          if ( map ) {
            if ( state < 2 ) {
              for ( code in map ) {
                // Lazy-add the new callback in a way that preserves old ones
                statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
              }
            } else {
              // Execute the appropriate callbacks
              jqXHR.always( map[ jqXHR.status ] );
            }
          }
          return this;
        },

        // Cancel the request
        abort: function( statusText ) {
          var finalText = statusText || strAbort;
          if ( transport ) {
            transport.abort( finalText );
          }
          done( 0, finalText );
          return this;
        }
      };

    // Attach deferreds
    deferred.promise( jqXHR ).complete = completeDeferred.add;
    jqXHR.success = jqXHR.done;
    jqXHR.error = jqXHR.fail;

    // Remove hash character (#7531: and string promotion)
    // Add protocol if not provided (prefilters might expect it)
    // Handle falsy url in the settings object (#10093: consistency with old signature)
    // We also use the url parameter if available
    s.url = ( ( url || s.url || ajaxLocation ) + "" ).replace( rhash, "" )
      .replace( rprotocol, ajaxLocParts[ 1 ] + "//" );

    // Alias method option to type as per ticket #12004
    s.type = options.method || options.type || s.method || s.type;

    // Extract dataTypes list
    s.dataTypes = jQuery.trim( s.dataType || "*" ).toLowerCase().match( rnotwhite ) || [ "" ];

    // A cross-domain request is in order when we have a protocol:host:port mismatch
    if ( s.crossDomain == null ) {
      parts = rurl.exec( s.url.toLowerCase() );
      s.crossDomain = !!( parts &&
        ( parts[ 1 ] !== ajaxLocParts[ 1 ] || parts[ 2 ] !== ajaxLocParts[ 2 ] ||
          ( parts[ 3 ] || ( parts[ 1 ] === "http:" ? "80" : "443" ) ) !==
            ( ajaxLocParts[ 3 ] || ( ajaxLocParts[ 1 ] === "http:" ? "80" : "443" ) ) )
      );
    }

    // Convert data if not already a string
    if ( s.data && s.processData && typeof s.data !== "string" ) {
      s.data = jQuery.param( s.data, s.traditional );
    }

    // Apply prefilters
    inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );

    // If request was aborted inside a prefilter, stop there
    if ( state === 2 ) {
      return jqXHR;
    }

    // We can fire global events as of now if asked to
    // Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118)
    fireGlobals = jQuery.event && s.global;

    // Watch for a new set of requests
    if ( fireGlobals && jQuery.active++ === 0 ) {
      jQuery.event.trigger("ajaxStart");
    }

    // Uppercase the type
    s.type = s.type.toUpperCase();

    // Determine if request has content
    s.hasContent = !rnoContent.test( s.type );

    // Save the URL in case we're toying with the If-Modified-Since
    // and/or If-None-Match header later on
    cacheURL = s.url;

    // More options handling for requests with no content
    if ( !s.hasContent ) {

      // If data is available, append data to url
      if ( s.data ) {
        cacheURL = ( s.url += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data );
        // #9682: remove data so that it's not used in an eventual retry
        delete s.data;
      }

      // Add anti-cache in url if needed
      if ( s.cache === false ) {
        s.url = rts.test( cacheURL ) ?

          // If there is already a '_' parameter, set its value
          cacheURL.replace( rts, "$1_=" + nonce++ ) :

          // Otherwise add one to the end
          cacheURL + ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + nonce++;
      }
    }

    // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
    if ( s.ifModified ) {
      if ( jQuery.lastModified[ cacheURL ] ) {
        jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] );
      }
      if ( jQuery.etag[ cacheURL ] ) {
        jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] );
      }
    }

    // Set the correct header, if data is being sent
    if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
      jqXHR.setRequestHeader( "Content-Type", s.contentType );
    }

    // Set the Accepts header for the server, depending on the dataType
    jqXHR.setRequestHeader(
      "Accept",
      s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[0] ] ?
        s.accepts[ s.dataTypes[0] ] + ( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
        s.accepts[ "*" ]
    );

    // Check for headers option
    for ( i in s.headers ) {
      jqXHR.setRequestHeader( i, s.headers[ i ] );
    }

    // Allow custom headers/mimetypes and early abort
    if ( s.beforeSend && ( s.beforeSend.call( callbackContext, jqXHR, s ) === false || state === 2 ) ) {
      // Abort if not done already and return
      return jqXHR.abort();
    }

    // Aborting is no longer a cancellation
    strAbort = "abort";

    // Install callbacks on deferreds
    for ( i in { success: 1, error: 1, complete: 1 } ) {
      jqXHR[ i ]( s[ i ] );
    }

    // Get transport
    transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );

    // If no transport, we auto-abort
    if ( !transport ) {
      done( -1, "No Transport" );
    } else {
      jqXHR.readyState = 1;

      // Send global event
      if ( fireGlobals ) {
        globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
      }
      // Timeout
      if ( s.async && s.timeout > 0 ) {
        timeoutTimer = setTimeout(function() {
          jqXHR.abort("timeout");
        }, s.timeout );
      }

      try {
        state = 1;
        transport.send( requestHeaders, done );
      } catch ( e ) {
        // Propagate exception as error if not done
        if ( state < 2 ) {
          done( -1, e );
        // Simply rethrow otherwise
        } else {
          throw e;
        }
      }
    }

    // Callback for when everything is done
    function done( status, nativeStatusText, responses, headers ) {
      var isSuccess, success, error, response, modified,
        statusText = nativeStatusText;

      // Called once
      if ( state === 2 ) {
        return;
      }

      // State is "done" now
      state = 2;

      // Clear timeout if it exists
      if ( timeoutTimer ) {
        clearTimeout( timeoutTimer );
      }

      // Dereference transport for early garbage collection
      // (no matter how long the jqXHR object will be used)
      transport = undefined;

      // Cache response headers
      responseHeadersString = headers || "";

      // Set readyState
      jqXHR.readyState = status > 0 ? 4 : 0;

      // Determine if successful
      isSuccess = status >= 200 && status < 300 || status === 304;

      // Get response data
      if ( responses ) {
        response = ajaxHandleResponses( s, jqXHR, responses );
      }

      // Convert no matter what (that way responseXXX fields are always set)
      response = ajaxConvert( s, response, jqXHR, isSuccess );

      // If successful, handle type chaining
      if ( isSuccess ) {

        // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
        if ( s.ifModified ) {
          modified = jqXHR.getResponseHeader("Last-Modified");
          if ( modified ) {
            jQuery.lastModified[ cacheURL ] = modified;
          }
          modified = jqXHR.getResponseHeader("etag");
          if ( modified ) {
            jQuery.etag[ cacheURL ] = modified;
          }
        }

        // if no content
        if ( status === 204 || s.type === "HEAD" ) {
          statusText = "nocontent";

        // if not modified
        } else if ( status === 304 ) {
          statusText = "notmodified";

        // If we have data, let's convert it
        } else {
          statusText = response.state;
          success = response.data;
          error = response.error;
          isSuccess = !error;
        }
      } else {
        // Extract error from statusText and normalize for non-aborts
        error = statusText;
        if ( status || !statusText ) {
          statusText = "error";
          if ( status < 0 ) {
            status = 0;
          }
        }
      }

      // Set data for the fake xhr object
      jqXHR.status = status;
      jqXHR.statusText = ( nativeStatusText || statusText ) + "";

      // Success/Error
      if ( isSuccess ) {
        deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
      } else {
        deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
      }

      // Status-dependent callbacks
      jqXHR.statusCode( statusCode );
      statusCode = undefined;

      if ( fireGlobals ) {
        globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError",
          [ jqXHR, s, isSuccess ? success : error ] );
      }

      // Complete
      completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );

      if ( fireGlobals ) {
        globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );
        // Handle the global AJAX counter
        if ( !( --jQuery.active ) ) {
          jQuery.event.trigger("ajaxStop");
        }
      }
    }

    return jqXHR;
  },

  getJSON: function( url, data, callback ) {
    return jQuery.get( url, data, callback, "json" );
  },

  getScript: function( url, callback ) {
    return jQuery.get( url, undefined, callback, "script" );
  }
});

jQuery.each( [ "get", "post" ], function( i, method ) {
  jQuery[ method ] = function( url, data, callback, type ) {
    // Shift arguments if data argument was omitted
    if ( jQuery.isFunction( data ) ) {
      type = type || callback;
      callback = data;
      data = undefined;
    }

    return jQuery.ajax({
      url: url,
      type: method,
      dataType: type,
      data: data,
      success: callback
    });
  };
});


jQuery._evalUrl = function( url ) {
  return jQuery.ajax({
    url: url,
    type: "GET",
    dataType: "script",
    async: false,
    global: false,
    "throws": true
  });
};


jQuery.fn.extend({
  wrapAll: function( html ) {
    var wrap;

    if ( jQuery.isFunction( html ) ) {
      return this.each(function( i ) {
        jQuery( this ).wrapAll( html.call(this, i) );
      });
    }

    if ( this[ 0 ] ) {

      // The elements to wrap the target around
      wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true );

      if ( this[ 0 ].parentNode ) {
        wrap.insertBefore( this[ 0 ] );
      }

      wrap.map(function() {
        var elem = this;

        while ( elem.firstElementChild ) {
          elem = elem.firstElementChild;
        }

        return elem;
      }).append( this );
    }

    return this;
  },

  wrapInner: function( html ) {
    if ( jQuery.isFunction( html ) ) {
      return this.each(function( i ) {
        jQuery( this ).wrapInner( html.call(this, i) );
      });
    }

    return this.each(function() {
      var self = jQuery( this ),
        contents = self.contents();

      if ( contents.length ) {
        contents.wrapAll( html );

      } else {
        self.append( html );
      }
    });
  },

  wrap: function( html ) {
    var isFunction = jQuery.isFunction( html );

    return this.each(function( i ) {
      jQuery( this ).wrapAll( isFunction ? html.call(this, i) : html );
    });
  },

  unwrap: function() {
    return this.parent().each(function() {
      if ( !jQuery.nodeName( this, "body" ) ) {
        jQuery( this ).replaceWith( this.childNodes );
      }
    }).end();
  }
});


jQuery.expr.filters.hidden = function( elem ) {
  // Support: Opera <= 12.12
  // Opera reports offsetWidths and offsetHeights less than zero on some elements
  return elem.offsetWidth <= 0 && elem.offsetHeight <= 0;
};
jQuery.expr.filters.visible = function( elem ) {
  return !jQuery.expr.filters.hidden( elem );
};




var r20 = /%20/g,
  rbracket = /\[\]$/,
  rCRLF = /\r?\n/g,
  rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,
  rsubmittable = /^(?:input|select|textarea|keygen)/i;

function buildParams( prefix, obj, traditional, add ) {
  var name;

  if ( jQuery.isArray( obj ) ) {
    // Serialize array item.
    jQuery.each( obj, function( i, v ) {
      if ( traditional || rbracket.test( prefix ) ) {
        // Treat each array item as a scalar.
        add( prefix, v );

      } else {
        // Item is non-scalar (array or object), encode its numeric index.
        buildParams( prefix + "[" + ( typeof v === "object" ? i : "" ) + "]", v, traditional, add );
      }
    });

  } else if ( !traditional && jQuery.type( obj ) === "object" ) {
    // Serialize object item.
    for ( name in obj ) {
      buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
    }

  } else {
    // Serialize scalar item.
    add( prefix, obj );
  }
}

// Serialize an array of form elements or a set of
// key/values into a query string
jQuery.param = function( a, traditional ) {
  var prefix,
    s = [],
    add = function( key, value ) {
      // If value is a function, invoke it and return its value
      value = jQuery.isFunction( value ) ? value() : ( value == null ? "" : value );
      s[ s.length ] = encodeURIComponent( key ) + "=" + encodeURIComponent( value );
    };

  // Set traditional to true for jQuery <= 1.3.2 behavior.
  if ( traditional === undefined ) {
    traditional = jQuery.ajaxSettings && jQuery.ajaxSettings.traditional;
  }

  // If an array was passed in, assume that it is an array of form elements.
  if ( jQuery.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {
    // Serialize the form elements
    jQuery.each( a, function() {
      add( this.name, this.value );
    });

  } else {
    // If traditional, encode the "old" way (the way 1.3.2 or older
    // did it), otherwise encode params recursively.
    for ( prefix in a ) {
      buildParams( prefix, a[ prefix ], traditional, add );
    }
  }

  // Return the resulting serialization
  return s.join( "&" ).replace( r20, "+" );
};

jQuery.fn.extend({
  serialize: function() {
    return jQuery.param( this.serializeArray() );
  },
  serializeArray: function() {
    return this.map(function() {
      // Can add propHook for "elements" to filter or add form elements
      var elements = jQuery.prop( this, "elements" );
      return elements ? jQuery.makeArray( elements ) : this;
    })
    .filter(function() {
      var type = this.type;

      // Use .is( ":disabled" ) so that fieldset[disabled] works
      return this.name && !jQuery( this ).is( ":disabled" ) &&
        rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) &&
        ( this.checked || !rcheckableType.test( type ) );
    })
    .map(function( i, elem ) {
      var val = jQuery( this ).val();

      return val == null ?
        null :
        jQuery.isArray( val ) ?
          jQuery.map( val, function( val ) {
            return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
          }) :
          { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
    }).get();
  }
});


jQuery.ajaxSettings.xhr = function() {
  try {
    return new XMLHttpRequest();
  } catch( e ) {}
};

var xhrId = 0,
  xhrCallbacks = {},
  xhrSuccessStatus = {
    // file protocol always yields status code 0, assume 200
    0: 200,
    // Support: IE9
    // #1450: sometimes IE returns 1223 when it should be 204
    1223: 204
  },
  xhrSupported = jQuery.ajaxSettings.xhr();

// Support: IE9
// Open requests must be manually aborted on unload (#5280)
// See https://support.microsoft.com/kb/2856746 for more info
if ( window.attachEvent ) {
  window.attachEvent( "onunload", function() {
    for ( var key in xhrCallbacks ) {
      xhrCallbacks[ key ]();
    }
  });
}

support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
support.ajax = xhrSupported = !!xhrSupported;

jQuery.ajaxTransport(function( options ) {
  var callback;

  // Cross domain only allowed if supported through XMLHttpRequest
  if ( support.cors || xhrSupported && !options.crossDomain ) {
    return {
      send: function( headers, complete ) {
        var i,
          xhr = options.xhr(),
          id = ++xhrId;

        xhr.open( options.type, options.url, options.async, options.username, options.password );

        // Apply custom fields if provided
        if ( options.xhrFields ) {
          for ( i in options.xhrFields ) {
            xhr[ i ] = options.xhrFields[ i ];
          }
        }

        // Override mime type if needed
        if ( options.mimeType && xhr.overrideMimeType ) {
          xhr.overrideMimeType( options.mimeType );
        }

        // X-Requested-With header
        // For cross-domain requests, seeing as conditions for a preflight are
        // akin to a jigsaw puzzle, we simply never set it to be sure.
        // (it can always be set on a per-request basis or even using ajaxSetup)
        // For same-domain requests, won't change header if already provided.
        if ( !options.crossDomain && !headers["X-Requested-With"] ) {
          headers["X-Requested-With"] = "XMLHttpRequest";
        }

        // Set headers
        for ( i in headers ) {
          xhr.setRequestHeader( i, headers[ i ] );
        }

        // Callback
        callback = function( type ) {
          return function() {
            if ( callback ) {
              delete xhrCallbacks[ id ];
              callback = xhr.onload = xhr.onerror = null;

              if ( type === "abort" ) {
                xhr.abort();
              } else if ( type === "error" ) {
                complete(
                  // file: protocol always yields status 0; see #8605, #14207
                  xhr.status,
                  xhr.statusText
                );
              } else {
                complete(
                  xhrSuccessStatus[ xhr.status ] || xhr.status,
                  xhr.statusText,
                  // Support: IE9
                  // Accessing binary-data responseText throws an exception
                  // (#11426)
                  typeof xhr.responseText === "string" ? {
                    text: xhr.responseText
                  } : undefined,
                  xhr.getAllResponseHeaders()
                );
              }
            }
          };
        };

        // Listen to events
        xhr.onload = callback();
        xhr.onerror = callback("error");

        // Create the abort callback
        callback = xhrCallbacks[ id ] = callback("abort");

        try {
          // Do send the request (this may raise an exception)
          xhr.send( options.hasContent && options.data || null );
        } catch ( e ) {
          // #14683: Only rethrow if this hasn't been notified as an error yet
          if ( callback ) {
            throw e;
          }
        }
      },

      abort: function() {
        if ( callback ) {
          callback();
        }
      }
    };
  }
});




// Install script dataType
jQuery.ajaxSetup({
  accepts: {
    script: "text/javascript, application/javascript, application/ecmascript, application/x-ecmascript"
  },
  contents: {
    script: /(?:java|ecma)script/
  },
  converters: {
    "text script": function( text ) {
      jQuery.globalEval( text );
      return text;
    }
  }
});

// Handle cache's special case and crossDomain
jQuery.ajaxPrefilter( "script", function( s ) {
  if ( s.cache === undefined ) {
    s.cache = false;
  }
  if ( s.crossDomain ) {
    s.type = "GET";
  }
});

// Bind script tag hack transport
jQuery.ajaxTransport( "script", function( s ) {
  // This transport only deals with cross domain requests
  if ( s.crossDomain ) {
    var script, callback;
    return {
      send: function( _, complete ) {
        script = jQuery("<script>").prop({
          async: true,
          charset: s.scriptCharset,
          src: s.url
        }).on(
          "load error",
          callback = function( evt ) {
            script.remove();
            callback = null;
            if ( evt ) {
              complete( evt.type === "error" ? 404 : 200, evt.type );
            }
          }
        );
        document.head.appendChild( script[ 0 ] );
      },
      abort: function() {
        if ( callback ) {
          callback();
        }
      }
    };
  }
});




var oldCallbacks = [],
  rjsonp = /(=)\?(?=&|$)|\?\?/;

// Default jsonp settings
jQuery.ajaxSetup({
  jsonp: "callback",
  jsonpCallback: function() {
    var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( nonce++ ) );
    this[ callback ] = true;
    return callback;
  }
});

// Detect, normalize options and install callbacks for jsonp requests
jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {

  var callbackName, overwritten, responseContainer,
    jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?
      "url" :
      typeof s.data === "string" && !( s.contentType || "" ).indexOf("application/x-www-form-urlencoded") && rjsonp.test( s.data ) && "data"
    );

  // Handle iff the expected data type is "jsonp" or we have a parameter to set
  if ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) {

    // Get callback name, remembering preexisting value associated with it
    callbackName = s.jsonpCallback = jQuery.isFunction( s.jsonpCallback ) ?
      s.jsonpCallback() :
      s.jsonpCallback;

    // Insert callback into url or form data
    if ( jsonProp ) {
      s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName );
    } else if ( s.jsonp !== false ) {
      s.url += ( rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName;
    }

    // Use data converter to retrieve json after script execution
    s.converters["script json"] = function() {
      if ( !responseContainer ) {
        jQuery.error( callbackName + " was not called" );
      }
      return responseContainer[ 0 ];
    };

    // force json dataType
    s.dataTypes[ 0 ] = "json";

    // Install callback
    overwritten = window[ callbackName ];
    window[ callbackName ] = function() {
      responseContainer = arguments;
    };

    // Clean-up function (fires after converters)
    jqXHR.always(function() {
      // Restore preexisting value
      window[ callbackName ] = overwritten;

      // Save back as free
      if ( s[ callbackName ] ) {
        // make sure that re-using the options doesn't screw things around
        s.jsonpCallback = originalSettings.jsonpCallback;

        // save the callback name for future use
        oldCallbacks.push( callbackName );
      }

      // Call if it was a function and we have a response
      if ( responseContainer && jQuery.isFunction( overwritten ) ) {
        overwritten( responseContainer[ 0 ] );
      }

      responseContainer = overwritten = undefined;
    });

    // Delegate to script
    return "script";
  }
});




// data: string of html
// context (optional): If specified, the fragment will be created in this context, defaults to document
// keepScripts (optional): If true, will include scripts passed in the html string
jQuery.parseHTML = function( data, context, keepScripts ) {
  if ( !data || typeof data !== "string" ) {
    return null;
  }
  if ( typeof context === "boolean" ) {
    keepScripts = context;
    context = false;
  }
  context = context || document;

  var parsed = rsingleTag.exec( data ),
    scripts = !keepScripts && [];

  // Single tag
  if ( parsed ) {
    return [ context.createElement( parsed[1] ) ];
  }

  parsed = jQuery.buildFragment( [ data ], context, scripts );

  if ( scripts && scripts.length ) {
    jQuery( scripts ).remove();
  }

  return jQuery.merge( [], parsed.childNodes );
};


// Keep a copy of the old load method
var _load = jQuery.fn.load;

/**
 * Load a url into a page
 */
jQuery.fn.load = function( url, params, callback ) {
  if ( typeof url !== "string" && _load ) {
    return _load.apply( this, arguments );
  }

  var selector, type, response,
    self = this,
    off = url.indexOf(" ");

  if ( off >= 0 ) {
    selector = jQuery.trim( url.slice( off ) );
    url = url.slice( 0, off );
  }

  // If it's a function
  if ( jQuery.isFunction( params ) ) {

    // We assume that it's the callback
    callback = params;
    params = undefined;

  // Otherwise, build a param string
  } else if ( params && typeof params === "object" ) {
    type = "POST";
  }

  // If we have elements to modify, make the request
  if ( self.length > 0 ) {
    jQuery.ajax({
      url: url,

      // if "type" variable is undefined, then "GET" method will be used
      type: type,
      dataType: "html",
      data: params
    }).done(function( responseText ) {

      // Save response for use in complete callback
      response = arguments;

      self.html( selector ?

        // If a selector was specified, locate the right elements in a dummy div
        // Exclude scripts to avoid IE 'Permission Denied' errors
        jQuery("<div>").append( jQuery.parseHTML( responseText ) ).find( selector ) :

        // Otherwise use the full result
        responseText );

    }).complete( callback && function( jqXHR, status ) {
      self.each( callback, response || [ jqXHR.responseText, status, jqXHR ] );
    });
  }

  return this;
};




// Attach a bunch of functions for handling common AJAX events
jQuery.each( [ "ajaxStart", "ajaxStop", "ajaxComplete", "ajaxError", "ajaxSuccess", "ajaxSend" ], function( i, type ) {
  jQuery.fn[ type ] = function( fn ) {
    return this.on( type, fn );
  };
});




jQuery.expr.filters.animated = function( elem ) {
  return jQuery.grep(jQuery.timers, function( fn ) {
    return elem === fn.elem;
  }).length;
};




var docElem = window.document.documentElement;

/**
 * Gets a window from an element
 */
function getWindow( elem ) {
  return jQuery.isWindow( elem ) ? elem : elem.nodeType === 9 && elem.defaultView;
}

jQuery.offset = {
  setOffset: function( elem, options, i ) {
    var curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition,
      position = jQuery.css( elem, "position" ),
      curElem = jQuery( elem ),
      props = {};

    // Set position first, in-case top/left are set even on static elem
    if ( position === "static" ) {
      elem.style.position = "relative";
    }

    curOffset = curElem.offset();
    curCSSTop = jQuery.css( elem, "top" );
    curCSSLeft = jQuery.css( elem, "left" );
    calculatePosition = ( position === "absolute" || position === "fixed" ) &&
      ( curCSSTop + curCSSLeft ).indexOf("auto") > -1;

    // Need to be able to calculate position if either
    // top or left is auto and position is either absolute or fixed
    if ( calculatePosition ) {
      curPosition = curElem.position();
      curTop = curPosition.top;
      curLeft = curPosition.left;

    } else {
      curTop = parseFloat( curCSSTop ) || 0;
      curLeft = parseFloat( curCSSLeft ) || 0;
    }

    if ( jQuery.isFunction( options ) ) {
      options = options.call( elem, i, curOffset );
    }

    if ( options.top != null ) {
      props.top = ( options.top - curOffset.top ) + curTop;
    }
    if ( options.left != null ) {
      props.left = ( options.left - curOffset.left ) + curLeft;
    }

    if ( "using" in options ) {
      options.using.call( elem, props );

    } else {
      curElem.css( props );
    }
  }
};

jQuery.fn.extend({
  offset: function( options ) {
    if ( arguments.length ) {
      return options === undefined ?
        this :
        this.each(function( i ) {
          jQuery.offset.setOffset( this, options, i );
        });
    }

    var docElem, win,
      elem = this[ 0 ],
      box = { top: 0, left: 0 },
      doc = elem && elem.ownerDocument;

    if ( !doc ) {
      return;
    }

    docElem = doc.documentElement;

    // Make sure it's not a disconnected DOM node
    if ( !jQuery.contains( docElem, elem ) ) {
      return box;
    }

    // Support: BlackBerry 5, iOS 3 (original iPhone)
    // If we don't have gBCR, just use 0,0 rather than error
    if ( typeof elem.getBoundingClientRect !== strundefined ) {
      box = elem.getBoundingClientRect();
    }
    win = getWindow( doc );
    return {
      top: box.top + win.pageYOffset - docElem.clientTop,
      left: box.left + win.pageXOffset - docElem.clientLeft
    };
  },

  position: function() {
    if ( !this[ 0 ] ) {
      return;
    }

    var offsetParent, offset,
      elem = this[ 0 ],
      parentOffset = { top: 0, left: 0 };

    // Fixed elements are offset from window (parentOffset = {top:0, left: 0}, because it is its only offset parent
    if ( jQuery.css( elem, "position" ) === "fixed" ) {
      // Assume getBoundingClientRect is there when computed position is fixed
      offset = elem.getBoundingClientRect();

    } else {
      // Get *real* offsetParent
      offsetParent = this.offsetParent();

      // Get correct offsets
      offset = this.offset();
      if ( !jQuery.nodeName( offsetParent[ 0 ], "html" ) ) {
        parentOffset = offsetParent.offset();
      }

      // Add offsetParent borders
      parentOffset.top += jQuery.css( offsetParent[ 0 ], "borderTopWidth", true );
      parentOffset.left += jQuery.css( offsetParent[ 0 ], "borderLeftWidth", true );
    }

    // Subtract parent offsets and element margins
    return {
      top: offset.top - parentOffset.top - jQuery.css( elem, "marginTop", true ),
      left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true )
    };
  },

  offsetParent: function() {
    return this.map(function() {
      var offsetParent = this.offsetParent || docElem;

      while ( offsetParent && ( !jQuery.nodeName( offsetParent, "html" ) && jQuery.css( offsetParent, "position" ) === "static" ) ) {
        offsetParent = offsetParent.offsetParent;
      }

      return offsetParent || docElem;
    });
  }
});

// Create scrollLeft and scrollTop methods
jQuery.each( { scrollLeft: "pageXOffset", scrollTop: "pageYOffset" }, function( method, prop ) {
  var top = "pageYOffset" === prop;

  jQuery.fn[ method ] = function( val ) {
    return access( this, function( elem, method, val ) {
      var win = getWindow( elem );

      if ( val === undefined ) {
        return win ? win[ prop ] : elem[ method ];
      }

      if ( win ) {
        win.scrollTo(
          !top ? val : window.pageXOffset,
          top ? val : window.pageYOffset
        );

      } else {
        elem[ method ] = val;
      }
    }, method, val, arguments.length, null );
  };
});

// Support: Safari<7+, Chrome<37+
// Add the top/left cssHooks using jQuery.fn.position
// Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
// Blink bug: https://code.google.com/p/chromium/issues/detail?id=229280
// getComputedStyle returns percent when specified for top/left/bottom/right;
// rather than make the css module depend on the offset module, just check for it here
jQuery.each( [ "top", "left" ], function( i, prop ) {
  jQuery.cssHooks[ prop ] = addGetHookIf( support.pixelPosition,
    function( elem, computed ) {
      if ( computed ) {
        computed = curCSS( elem, prop );
        // If curCSS returns percentage, fallback to offset
        return rnumnonpx.test( computed ) ?
          jQuery( elem ).position()[ prop ] + "px" :
          computed;
      }
    }
  );
});


// Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods
jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {
  jQuery.each( { padding: "inner" + name, content: type, "": "outer" + name }, function( defaultExtra, funcName ) {
    // Margin is only for outerHeight, outerWidth
    jQuery.fn[ funcName ] = function( margin, value ) {
      var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ),
        extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" );

      return access( this, function( elem, type, value ) {
        var doc;

        if ( jQuery.isWindow( elem ) ) {
          // As of 5/8/2012 this will yield incorrect results for Mobile Safari, but there
          // isn't a whole lot we can do. See pull request at this URL for discussion:
          // https://github.com/jquery/jquery/pull/764
          return elem.document.documentElement[ "client" + name ];
        }

        // Get document width or height
        if ( elem.nodeType === 9 ) {
          doc = elem.documentElement;

          // Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height],
          // whichever is greatest
          return Math.max(
            elem.body[ "scroll" + name ], doc[ "scroll" + name ],
            elem.body[ "offset" + name ], doc[ "offset" + name ],
            doc[ "client" + name ]
          );
        }

        return value === undefined ?
          // Get width or height on the element, requesting but not forcing parseFloat
          jQuery.css( elem, type, extra ) :

          // Set width or height on the element
          jQuery.style( elem, type, value, extra );
      }, type, chainable ? margin : undefined, chainable, null );
    };
  });
});


// The number of elements contained in the matched element set
jQuery.fn.size = function() {
  return this.length;
};

jQuery.fn.andSelf = jQuery.fn.addBack;




// Register as a named AMD module, since jQuery can be concatenated with other
// files that may use define, but not via a proper concatenation script that
// understands anonymous AMD modules. A named AMD is safest and most robust
// way to register. Lowercase jquery is used because AMD module names are
// derived from file names, and jQuery is normally delivered in a lowercase
// file name. Do this after creating the global so that if an AMD module wants
// to call noConflict to hide this version of jQuery, it will work.

// Note that for maximum portability, libraries that are not jQuery should
// declare themselves as anonymous modules, and avoid setting a global if an
// AMD loader is present. jQuery is a special case. For more information, see
// https://github.com/jrburke/requirejs/wiki/Updating-existing-libraries#wiki-anon

if ( typeof define === "function" && define.amd ) {
  define( "jquery", [], function() {
    return jQuery;
  });
}




var
  // Map over jQuery in case of overwrite
  _jQuery = window.jQuery,

  // Map over the $ in case of overwrite
  _$ = window.$;

jQuery.noConflict = function( deep ) {
  if ( window.$ === jQuery ) {
    window.$ = _$;
  }

  if ( deep && window.jQuery === jQuery ) {
    window.jQuery = _jQuery;
  }

  return jQuery;
};

// Expose jQuery and $ identifiers, even in AMD
// (#7102#comment:10, https://github.com/jquery/jquery/pull/557)
// and CommonJS for browser emulators (#13566)
if ( typeof noGlobal === strundefined ) {
  window.jQuery = window.$ = jQuery;
}




return jQuery;

}));

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