CodeMirror Accessible

CodeMirror does not currently fully support screen reader software. Since CodeMirror does not use contentEditable internally, an extra effort must be made to provide this accessibility.

Analysis of Current Functionality

CodeMirror uses a hidden textarea to accept input events, track user selections, provide copy/paste, etc. This has the benefit of some native input working correctly, but since the textarea is not a mirror of the content being entered, other things do not work.

Using NVDA, a screen reader for Windows, this is the behavior seen today with version 3.15 downloaded from http://codemirror.net/:

Possible Solution

A solution involves resetting the input value to the current line when the cursor location moves with an empty selection. Then, by calling input.setSelectionRange(from.ch, to.ch) the actual selection location is being moved, and NVDA is able to detect the changes. This value must stay in the textarea long enough for the screenreader to detect the change, but has to be cleared out quick enough for the next cursor movement to be read properly. The quick clearing out could be made unnecessary by setting the value of the textarea to CodeMirror.getValue(), however this causes some major performance bottlenecks (see below).

In addition, we do not clip the selection at any maximum limit to ensure that the selection is always consistent in the actual textarea.

Implementation Considerations

I had hoped that this could be structured as a plugin, and could avoid touching the CodeMirror internals, but that proved to not be possible. That said, it avoids large modifications to the readInput and resetInput functions, and could easily be hidden behind a property. View the changes in codemirror-accessible.js.

This still needs to be tested with more advanced CodeMirror features, like atomic markers and linked documents, and with other screen readers. Please let me know if you'd be able to help with testing these features or can give feedback with different screen readers.

Performance Considerations

The downside is that this could potentially slow things down. The selection was intentionally clipped with a low limit, and every time the selection changes, we need to set the textarea value to the current line of the CodeMirror. Performance on very long lines with CodeMirror are a known issue, and copying / selecting this data into a textarea is an extra step (though probably not significant compared to text measuring).

Originally, I was setting the textarea's value to the entire content (which seems to be best for the screenreader), but there is a major impact is caused by the computation of the selectionRange in this case. Textareas setSelectionRange method takes an absolute start and end value, while CodeMirror operates on individual lines. So we need to count from 0 to currently selected line and add the length of each line to arrive there.

Demos

This is working in the demo below. Compare the first CodeMirror (with the fix applied), the second CodeMirror (using the original version), and a normal textarea (at the bottom).

CodeMirror With Accessibility Fix direct link

/*!
 * jQuery JavaScript Library v1.10.2
 * http://jquery.com/
 *
 * Includes Sizzle.js
 * http://sizzlejs.com/
 *
 * Copyright 2005, 2013 jQuery Foundation, Inc. and other contributors
 * Released under the MIT license
 * http://jquery.org/license
 *
 * Date: 2013-07-03T13:48Z
 */
(function( window, undefined ) {

// Can't do this because several apps including ASP.NET trace
// the stack via arguments.caller.callee and Firefox dies if
// you try to trace through "use strict" call chains. (#13335)
// Support: Firefox 18+
//"use strict";
var
  // The deferred used on DOM ready
  readyList,

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

// Support: IE<10
  // For `typeof xmlNode.method` instead of `xmlNode.method !== undefined`
  core_strundefined = typeof undefined,

// Use the correct document accordingly with window argument (sandbox)
  location = window.location,
  document = window.document,
  docElem = document.documentElement,

// Map over jQuery in case of overwrite
  _jQuery = window.jQuery,

// Map over the $ in case of overwrite
  _$ = window.$,

// [[Class]] -> type pairs
  class2type = {},

// List of deleted data cache ids, so we can reuse them
  core_deletedIds = [],

core_version = "1.10.2",

// Save a reference to some core methods
  core_concat = core_deletedIds.concat,
  core_push = core_deletedIds.push,
  core_slice = core_deletedIds.slice,
  core_indexOf = core_deletedIds.indexOf,
  core_toString = class2type.toString,
  core_hasOwn = class2type.hasOwnProperty,
  core_trim = core_version.trim,

// Define a local copy of jQuery
  jQuery = function( selector, context ) {
    // The jQuery object is actually just the init constructor 'enhanced'
    return new jQuery.fn.init( selector, context, rootjQuery );
  },

// Used for matching numbers
  core_pnum = /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/.source,

// Used for splitting on whitespace
  core_rnotwhite = /\S+/g,

// Make sure we trim BOM and NBSP (here's looking at you, Safari 5.0 and IE)
  rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,

// 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-]*))$/,

// Match a standalone tag
  rsingleTag = /^<(\w+)\s*\/?>(?:<\/\1>|)$/,

// JSON RegExp
  rvalidchars = /^[\],:{}\s]*$/,
  rvalidbraces = /(?:^|:|,)(?:\s*\[)+/g,
  rvalidescape = /\\(?:["\\\/bfnrt]|u[\da-fA-F]{4})/g,
  rvalidtokens = /"[^"\\\r\n]*"|true|false|null|-?(?:\d+\.|)\d+(?:[eE][+-]?\d+|)/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();
  },

// The ready event handler
  completed = function( event ) {

// readyState === "complete" is good enough for us to call the dom ready in oldIE
    if ( document.addEventListener || event.type === "load" || document.readyState === "complete" ) {
      detach();
      jQuery.ready();
    }
  },
  // Clean-up method for dom ready events
  detach = function() {
    if ( document.addEventListener ) {
      document.removeEventListener( "DOMContentLoaded", completed, false );
      window.removeEventListener( "load", completed, false );

} else {
      document.detachEvent( "onreadystatechange", completed );
      window.detachEvent( "onload", completed );
    }
  };

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

constructor: jQuery,
  init: function( selector, context, rootjQuery ) {
    var match, elem;

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

// Handle HTML strings
    if ( typeof selector === "string" ) {
      if ( selector.charAt(0) === "<" && selector.charAt( 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;

// scripts is true for back-compat
          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] );

// Check parentNode to catch when Blackberry 4.6 returns
          // nodes that are no longer in the document #6963
          if ( elem && elem.parentNode ) {
            // Handle the case where IE and Opera return items
            // by name instead of ID
            if ( elem.id !== match[2] ) {
              return rootjQuery.find( selector );
            }

// Otherwise, we 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 rootjQuery.ready( selector );
    }

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

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

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

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

toArray: function() {
    return core_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 a 'clean' array
      this.toArray() :

// Return just the object
      ( num < 0 ? this[ this.length + num ] : this[ num ] );
  },

// 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 );
  },

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

return this;
  },

slice: function() {
    return this.pushStack( core_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] ] : [] );
  },

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

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

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

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

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

// Handle a deep copy situation
  if ( typeof target === "boolean" ) {
    deep = target;
    target = arguments[1] || {};
    // skip the boolean and the target
    i = 2;
  }

// 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 ( length === i ) {
    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
  // Non-digits removed to match rinlinejQuery
  expando: "jQuery" + ( core_version + Math.random() ).replace( /\D/g, "" ),

noConflict: function( deep ) {
    if ( window.$ === jQuery ) {
      window.$ = _$;
    }

if ( deep && window.jQuery === jQuery ) {
      window.jQuery = _jQuery;
    }

return jQuery;
  },

// 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;
    }

// Make sure body exists, at least, in case IE gets a little overzealous (ticket #5443).
    if ( !document.body ) {
      return setTimeout( jQuery.ready );
    }

// 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.trigger ) {
      jQuery( document ).trigger("ready").off("ready");
    }
  },

// See test/unit/core.js for details concerning isFunction.
  // Since version 1.3, DOM methods and functions like alert
  // aren't supported. They return false on IE (#2968).
  isFunction: function( obj ) {
    return jQuery.type(obj) === "function";
  },

isArray: Array.isArray || function( obj ) {
    return jQuery.type(obj) === "array";
  },

isWindow: function( obj ) {
    /* jshint eqeqeq: false */
    return obj != null && obj == obj.window;
  },

isNumeric: function( obj ) {
    return !isNaN( parseFloat(obj) ) && isFinite( obj );
  },

type: function( obj ) {
    if ( obj == null ) {
      return String( obj );
    }
    return typeof obj === "object" || typeof obj === "function" ?
      class2type[ core_toString.call(obj) ] || "object" :
      typeof obj;
  },

isPlainObject: function( obj ) {
    var key;

// Must be an Object.
    // Because of IE, we also have to check the presence of the constructor property.
    // Make sure that DOM nodes and window objects don't pass through, as well
    if ( !obj || jQuery.type(obj) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) {
      return false;
    }

try {
      // Not own constructor property must be Object
      if ( obj.constructor &&
        !core_hasOwn.call(obj, "constructor") &&
        !core_hasOwn.call(obj.constructor.prototype, "isPrototypeOf") ) {
        return false;
      }
    } catch ( e ) {
      // IE8,9 Will throw exceptions on certain host objects #9897
      return false;
    }

// Support: IE<9
    // Handle iteration over inherited properties before own properties.
    if ( jQuery.support.ownLast ) {
      for ( key in obj ) {
        return core_hasOwn.call( obj, key );
      }
    }

// Own properties are enumerated firstly, so to speed up,
    // if last one is own, then all properties are own.
    for ( key in obj ) {}

return key === undefined || core_hasOwn.call( obj, key );
  },

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

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

// 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
  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 ) {
      jQuery( scripts ).remove();
    }
    return jQuery.merge( [], parsed.childNodes );
  },

parseJSON: function( data ) {
    // Attempt to parse using the native JSON parser first
    if ( window.JSON && window.JSON.parse ) {
      return window.JSON.parse( data );
    }

if ( data === null ) {
      return data;
    }

if ( typeof data === "string" ) {

// Make sure leading/trailing whitespace is removed (IE can't handle it)
      data = jQuery.trim( data );

if ( data ) {
        // Make sure the incoming data is actual JSON
        // Logic borrowed from http://json.org/json2.js
        if ( rvalidchars.test( data.replace( rvalidescape, "@" )
          .replace( rvalidtokens, "]" )
          .replace( rvalidbraces, "")) ) {

return ( new Function( "return " + data ) )();
        }
      }
    }

jQuery.error( "Invalid JSON: " + data );
  },

// Cross-browser xml parsing
  parseXML: function( data ) {
    var xml, tmp;
    if ( !data || typeof data !== "string" ) {
      return null;
    }
    try {
      if ( window.DOMParser ) { // Standard
        tmp = new DOMParser();
        xml = tmp.parseFromString( data , "text/xml" );
      } else { // IE
        xml = new ActiveXObject( "Microsoft.XMLDOM" );
        xml.async = "false";
        xml.loadXML( data );
      }
    } catch( e ) {
      xml = undefined;
    }
    if ( !xml || !xml.documentElement || xml.getElementsByTagName( "parsererror" ).length ) {
      jQuery.error( "Invalid XML: " + data );
    }
    return xml;
  },

noop: function() {},

// Evaluates a script in a global context
  // Workarounds based on findings by Jim Driscoll
  // http://weblogs.java.net/blog/driscoll/archive/2009/09/08/eval-javascript-global-context
  globalEval: function( data ) {
    if ( data && jQuery.trim( data ) ) {
      // We use execScript on Internet Explorer
      // We use an anonymous function so that context is window
      // rather than jQuery in Firefox
      ( window.execScript || function( data ) {
        window[ "eval" ].call( window, data );
      } )( data );
    }
  },

// Convert dashed to camelCase; used by the css and data modules
  // 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;
  },

// Use native String.trim function wherever possible
  trim: core_trim && !core_trim.call("\uFEFF\xA0") ?
    function( text ) {
      return text == null ?
        "" :
        core_trim.call( text );
    } :

// Otherwise use our own trimming functionality
    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 {
        core_push.call( ret, arr );
      }
    }

return ret;
  },

inArray: function( elem, arr, i ) {
    var len;

if ( arr ) {
      if ( core_indexOf ) {
        return core_indexOf.call( arr, elem, i );
      }

len = arr.length;
      i = i ? i < 0 ? Math.max( 0, len + i ) : i : 0;

for ( ; i < len; i++ ) {
        // Skip accessing in sparse arrays
        if ( i in arr && arr[ i ] === elem ) {
          return i;
        }
      }
    }

return -1;
  },

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

if ( typeof l === "number" ) {
      for ( ; j < l; j++ ) {
        first[ i++ ] = second[ j ];
      }
    } else {
      while ( second[j] !== undefined ) {
        first[ i++ ] = second[ j++ ];
      }
    }

first.length = i;

return first;
  },

grep: function( elems, callback, inv ) {
    var retVal,
      ret = [],
      i = 0,
      length = elems.length;
    inv = !!inv;

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

return ret;
  },

// 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
    if ( isArray ) {
      for ( ; i < length; i++ ) {
        value = callback( elems[ i ], i, arg );

if ( value != null ) {
          ret[ ret.length ] = value;
        }
      }

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

if ( value != null ) {
          ret[ ret.length ] = value;
        }
      }
    }

// Flatten any nested arrays
    return core_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 args, proxy, tmp;

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 = core_slice.call( arguments, 2 );
    proxy = function() {
      return fn.apply( context || this, args.concat( core_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;
  },

// Multifunctional method to get and set values of a collection
  // The value/s can optionally be executed if it's a function
  access: function( elems, fn, key, value, chainable, emptyGet, raw ) {
    var i = 0,
      length = 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 < length; i++ ) {
          fn( elems[i], key, raw ? value : value.call( elems[i], i, fn( elems[i], key ) ) );
        }
      }
    }

return chainable ?
      elems :

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

now: function() {
    return ( new Date() ).getTime();
  },

// A method for quickly swapping in/out CSS properties to get correct calculations.
  // Note: this method belongs to the css module but it's needed here for the support module.
  // If support gets modularized, this method should be moved back to the css module.
  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;
  }
});

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: http://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 );

// Standards-based browsers support DOMContentLoaded
    } else if ( document.addEventListener ) {
      // Use the handy event callback
      document.addEventListener( "DOMContentLoaded", completed, false );

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

// If IE event model is used
    } else {
      // Ensure firing before onload, maybe late but safe also for iframes
      document.attachEvent( "onreadystatechange", completed );

// A fallback to window.onload, that will always work
      window.attachEvent( "onload", completed );

// If IE and not a frame
      // continually check to see if the document is ready
      var top = false;

try {
        top = window.frameElement == null && document.documentElement;
      } catch(e) {}

if ( top && top.doScroll ) {
        (function doScrollCheck() {
          if ( !jQuery.isReady ) {

try {
              // Use the trick by Diego Perini
              // http://javascript.nwbox.com/IEContentLoaded/
              top.doScroll("left");
            } catch(e) {
              return setTimeout( doScrollCheck, 50 );
            }

// detach all dom ready events
            detach();

// and execute any waiting functions
            jQuery.ready();
          }
        })();
      }
    }
  }
  return readyList.promise( obj );
};

// 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 ) {
  var length = obj.length,
    type = jQuery.type( obj );

if ( jQuery.isWindow( obj ) ) {
    return false;
  }

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

return type === "array" || type !== "function" &&
    ( length === 0 ||
    typeof length === "number" && length > 0 && ( length - 1 ) in obj );
}

// All jQuery objects should point back to these
rootjQuery = jQuery(document);
/*!
 * Sizzle CSS Selector Engine v1.10.2
 * http://sizzlejs.com/
 *
 * Copyright 2013 jQuery Foundation, Inc. and other contributors
 * Released under the MIT license
 * http://jquery.org/license
 *
 * Date: 2013-07-03
 */
(function( window, undefined ) {

var i,
  support,
  cachedruns,
  Expr,
  getText,
  isXML,
  compile,
  outermostContext,
  sortInput,

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

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

// General-purpose constants
  strundefined = typeof undefined,
  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 if we can't use a native one
  indexOf = arr.indexOf || function( elem ) {
    var i = 0,
      len = this.length;
    for ( ; i < len; i++ ) {
      if ( this[i] === elem ) {
        return i;
      }
    }
    return -1;
  },

// 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#" ),

// Acceptable operators http://www.w3.org/TR/selectors/#attribute-selectors
  attributes = "\\[" + whitespace + "*(" + characterEncoding + ")" + whitespace +
    "*(?:([*^$|!~]?=)" + whitespace + "*(?:(['\"])((?:\\\\.|[^\\\\])*?)\\3|(" + identifier + ")|)|)" + whitespace + "*\\]",

// Prefer arguments quoted,
  //   then not containing pseudos/brackets,
  //   then attribute selectors/non-parenthetical expressions,
  //   then anything else
  // These preferences are here to reduce the number of selectors
  //   needing tokenize in the PSEUDO preFilter
  pseudos = ":(" + characterEncoding + ")(?:\$((['\"])((?:\\\\.|[^\\\\])*?)\\3|((?:\\\\.|[^\\\\()[\\]]|" + attributes.replace( 3, 8 ) + ")*)|.*)\$|)",

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

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

rsibling = new RegExp( 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" )
  },

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

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

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

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
    // Workaround erroneous numeric interpretation of +"0x"
    return high !== high || escapedWhitespace ?
      escaped :
      // BMP codepoint
      high < 0 ?
        String.fromCharCode( high + 0x10000 ) :
        // Supplemental Plane codepoint (surrogate pair)
        String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
  };

// 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 || [];

if ( !selector || typeof selector !== "string" ) {
    return results;
  }

if ( (nodeType = context.nodeType) !== 1 && nodeType !== 9 ) {
    return [];
  }

if ( documentIsHTML && !seed ) {

// Shortcuts
    if ( (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 #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 && context.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 === 9 && 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 ) && 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]);
        }
      }
    });
  });
}

/**
 * Detect xml
 * @param {Element|Object} elem An element or a document
 */
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;
};

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

/**
 * 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 doc = node ? node.ownerDocument || node : preferredDoc,
    parent = doc.defaultView;

// 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;

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

// 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.attachEvent && parent !== parent.top ) {
    parent.attachEvent( "onbeforeunload", function() {
      setDocument();
    });
  }

/* 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;
  });

// Check if getElementsByClassName can be trusted
  support.getElementsByClassName = assert(function( div ) {
    div.innerHTML = "<div class='a'></div><div class='a i'></div>";

// Support: Safari<4
    // Catch class over-caching
    div.firstChild.className = "i";
    // Support: Opera<10
    // Catch gEBCN failure to find non-leading classes
    return div.getElementsByClassName("i").length === 2;
  });

// 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 !== strundefined && 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 !== strundefined && elem.getAttributeNode("id");
        return node && node.value === attrId;
      };
    };
  }

// Tag
  Expr.find["TAG"] = support.getElementsByTagName ?
    function( tag, context ) {
      if ( typeof context.getElementsByTagName !== strundefined ) {
        return context.getElementsByTagName( tag );
      }
    } :
    function( tag, context ) {
      var elem,
        tmp = [],
        i = 0,
        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 ( typeof context.getElementsByClassName !== strundefined && 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 http://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
      // http://bugs.jquery.com/ticket/12359
      div.innerHTML = "<select><option selected=''></option></select>";

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

// 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");
      }
    });

assert(function( div ) {

// Support: Opera 10-12/IE8
      // ^= $= *= and empty values
      // Should not select anything
      // Support: Windows 8 Native Apps
      // The type attribute is restricted during .innerHTML assignment
      var input = doc.createElement("input");
      input.setAttribute( "type", "hidden" );
      div.appendChild( input ).setAttribute( "t", "" );

if ( div.querySelectorAll("[t^='']").length ) {
        rbuggyQSA.push( "[*^$]=" + 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.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
  ---------------------------------------------------------------------- */

// Element contains another
  // Purposefully does not implement inclusive descendent
  // As in, an element does not contain itself
  contains = rnative.test( docElem.contains ) || docElem.compareDocumentPosition ?
    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 = docElem.compareDocumentPosition ?
  function( a, b ) {

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

var compare = b.compareDocumentPosition && a.compareDocumentPosition && a.compareDocumentPosition( b );

if ( compare ) {
      // 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 || contains(preferredDoc, a) ) {
          return -1;
        }
        if ( b === doc || contains(preferredDoc, b) ) {
          return 1;
        }

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

return compare & 4 ? -1 : 1;
    }

// Not directly comparable, sort on existence of method
    return a.compareDocumentPosition ? -1 : 1;
  } :
  function( a, b ) {
    var cur,
      i = 0,
      aup = a.parentNode,
      bup = b.parentNode,
      ap = [ a ],
      bp = [ b ];

// Exit early if the nodes are identical
    if ( a === b ) {
      hasDuplicate = true;
      return 0;

// Parentless nodes are either documents or disconnected
    } else if ( !aup || !bup ) {
      return a === doc ? -1 :
        b === doc ? 1 :
        aup ? -1 :
        bup ? 1 :
        sortInput ?
        ( indexOf.call( sortInput, a ) - indexOf.call( 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 ?
    support.attributes || !documentIsHTML ?
      elem.getAttribute( name ) :
      (val = elem.getAttributeNode(name)) && val.specified ?
        val.value :
        null :
    val;
};

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 );
    }
  }

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
    for ( ; (node = elem[i]); 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 (see #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[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[5] && match[2];

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

// Accept quoted arguments as-is
      if ( match[3] && match[4] !== undefined ) {
        match[2] = match[4];

// 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 !== strundefined && 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 + " " ).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.call( 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 );
          return !results.pop();
        };
    }),

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

"contains": markFunction(function( text ) {
      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 only affected by element nodes and content nodes(including text(3), cdata(4)),
      //   not comment, processing instructions, or others
      // Thanks to Diego Perini for the nodeName shortcut
      //   Greater than "@" means alpha characters (specifically not starting with "#" or "?")
      for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
        if ( elem.nodeName > "@" || elem.nodeType === 3 || elem.nodeType === 4 ) {
          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;
      // IE6 and 7 will map elem.type to 'text' for new HTML5 types (search, etc)
      // use getAttribute instead to test this case
      return elem.nodeName.toLowerCase() === "input" &&
        elem.type === "text" &&
        ( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === elem.type );
    },

// 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();

function tokenize( 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 data, cache, outerCache,
        dirkey = 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 ( (cache = outerCache[ dir ]) && cache[0] === dirkey ) {
              if ( (data = cache[1]) === true || data === cachedruns ) {
                return data === true;
              }
            } else {
              cache = outerCache[ dir ] = [ dirkey ];
              cache[1] = matcher( elem, context, xml ) || cachedruns;
              if ( cache[1] === true ) {
                return true;
              }
            }
          }
        }
      }
    };
}

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.call( 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.call( checkContext, elem ) > -1;
    }, implicitRelative, true ),
    matchers = [ function( elem, context, xml ) {
      return ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
        (checkContext = context).nodeType ?
          matchContext( elem, context, xml ) :
          matchAnyContext( elem, context, xml ) );
    } ];

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

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

// Add elements passing elementMatchers directly to results
      // Keep `i` a string if there are no elements so `matchedCount` will be "00" below
      for ( ; (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;
            cachedruns = ++matcherCachedRuns;
          }
        }

// 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, group /* 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 ( !group ) {
      group = tokenize( selector );
    }
    i = group.length;
    while ( i-- ) {
      cached = matcherFromTokens( group[i] );
      if ( cached[ expando ] ) {
        setMatchers.push( cached );
      } else {
        elementMatchers.push( cached );
      }
    }

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

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

function select( selector, context, results, seed ) {
  var i, tokens, token, type, find,
    match = tokenize( selector );

if ( !seed ) {
    // Try to minimize operations if there is 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;
        }
        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 ) && 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
  // Provide `match` to avoid retokenization if we modified the selector above
  compile( selector, match )(
    seed,
    context,
    !documentIsHTML,
    results,
    rsibling.test( selector )
  );
  return results;
}

// One-time assignments

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

// Support: Chrome<14
// 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"
// http://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 (val = elem.getAttributeNode( name )) && val.specified ?
        val.value :
        elem[ name ] === true ? name.toLowerCase() : null;
    }
  });
}

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;

})( window );
// 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( core_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 // Flag to know if list is currently firing
    firing,
    // Last fire value (for non-forgettable lists)
    memory,
    // Flag to know if list was already fired
    fired,
    // End of the loop when firing
    firingLength,
    // Index of currently firing callback (modified by remove if needed)
    firingIndex,
    // First callback to fire (used internally by add and fireWith)
    firingStart,
    // 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 action = tuple[ 0 ],
                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[ action + "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 = core_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 ? core_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();
  }
});
jQuery.support = (function( support ) {

var all, a, input, select, fragment, opt, eventName, isSupported, i,
    div = document.createElement("div");

// Setup
  div.setAttribute( "className", "t" );
  div.innerHTML = "  <link/><table></table><a href='/a'>a</a><input type='checkbox'/>";

// Finish early in limited (non-browser) environments
  all = div.getElementsByTagName("*") || [];
  a = div.getElementsByTagName("a")[ 0 ];
  if ( !a || !a.style || !all.length ) {
    return support;
  }

// First batch of tests
  select = document.createElement("select");
  opt = select.appendChild( document.createElement("option") );
  input = div.getElementsByTagName("input")[ 0 ];

a.style.cssText = "top:1px;float:left;opacity:.5";

// Test setAttribute on camelCase class. If it works, we need attrFixes when doing get/setAttribute (ie6/7)
  support.getSetAttribute = div.className !== "t";

// IE strips leading whitespace when .innerHTML is used
  support.leadingWhitespace = div.firstChild.nodeType === 3;

// Make sure that tbody elements aren't automatically inserted
  // IE will insert them into empty tables
  support.tbody = !div.getElementsByTagName("tbody").length;

// Make sure that link elements get serialized correctly by innerHTML
  // This requires a wrapper element in IE
  support.htmlSerialize = !!div.getElementsByTagName("link").length;

// Get the style information from getAttribute
  // (IE uses .cssText instead)
  support.style = /top/.test( a.getAttribute("style") );

// Make sure that URLs aren't manipulated
  // (IE normalizes it by default)
  support.hrefNormalized = a.getAttribute("href") === "/a";

// Make sure that element opacity exists
  // (IE uses filter instead)
  // Use a regex to work around a WebKit issue. See #5145
  support.opacity = /^0.5/.test( a.style.opacity );

// Verify style float existence
  // (IE uses styleFloat instead of cssFloat)
  support.cssFloat = !!a.style.cssFloat;

// Check the default checkbox/radio value ("" on WebKit; "on" elsewhere)
  support.checkOn = !!input.value;

// Make sure that a selected-by-default option has a working selected property.
  // (WebKit defaults to false instead of true, IE too, if it's in an optgroup)
  support.optSelected = opt.selected;

// Tests for enctype support on a form (#6743)
  support.enctype = !!document.createElement("form").enctype;

// Makes sure cloning an html5 element does not cause problems
  // Where outerHTML is undefined, this still works
  support.html5Clone = document.createElement("nav").cloneNode( true ).outerHTML !== "<:nav></:nav>";

// Will be defined later
  support.inlineBlockNeedsLayout = false;
  support.shrinkWrapBlocks = false;
  support.pixelPosition = false;
  support.deleteExpando = true;
  support.noCloneEvent = true;
  support.reliableMarginRight = true;
  support.boxSizingReliable = true;

// Make sure checked status is properly cloned
  input.checked = true;
  support.noCloneChecked = input.cloneNode( true ).checked;

// Make sure that the options inside disabled selects aren't marked as disabled
  // (WebKit marks them as disabled)
  select.disabled = true;
  support.optDisabled = !opt.disabled;

// Support: IE<9
  try {
    delete div.test;
  } catch( e ) {
    support.deleteExpando = false;
  }

// Check if we can trust getAttribute("value")
  input = document.createElement("input");
  input.setAttribute( "value", "" );
  support.input = input.getAttribute( "value" ) === "";

// Check if an input maintains its value after becoming a radio
  input.value = "t";
  input.setAttribute( "type", "radio" );
  support.radioValue = input.value === "t";

// #11217 - WebKit loses check when the name is after the checked attribute
  input.setAttribute( "checked", "t" );
  input.setAttribute( "name", "t" );

fragment = document.createDocumentFragment();
  fragment.appendChild( input );

// Check if a disconnected checkbox will retain its checked
  // value of true after appended to the DOM (IE6/7)
  support.appendChecked = input.checked;

// WebKit doesn't clone checked state correctly in fragments
  support.checkClone = fragment.cloneNode( true ).cloneNode( true ).lastChild.checked;

// Support: IE<9
  // Opera does not clone events (and typeof div.attachEvent === undefined).
  // IE9-10 clones events bound via attachEvent, but they don't trigger with .click()
  if ( div.attachEvent ) {
    div.attachEvent( "onclick", function() {
      support.noCloneEvent = false;
    });

div.cloneNode( true ).click();
  }

// Support: IE<9 (lack submit/change bubble), Firefox 17+ (lack focusin event)
  // Beware of CSP restrictions (https://developer.mozilla.org/en/Security/CSP)
  for ( i in { submit: true, change: true, focusin: true }) {
    div.setAttribute( eventName = "on" + i, "t" );

support[ i + "Bubbles" ] = eventName in window || div.attributes[ eventName ].expando === false;
  }

div.style.backgroundClip = "content-box";
  div.cloneNode( true ).style.backgroundClip = "";
  support.clearCloneStyle = div.style.backgroundClip === "content-box";

// Support: IE<9
  // Iteration over object's inherited properties before its own.
  for ( i in jQuery( support ) ) {
    break;
  }
  support.ownLast = i !== "0";

// Run tests that need a body at doc ready
  jQuery(function() {
    var container, marginDiv, tds,
      divReset = "padding:0;margin:0;border:0;display:block;box-sizing:content-box;-moz-box-sizing:content-box;-webkit-box-sizing:content-box;",
      body = document.getElementsByTagName("body")[0];

if ( !body ) {
      // Return for frameset docs that don't have a body
      return;
    }

container = document.createElement("div");
    container.style.cssText = "border:0;width:0;height:0;position:absolute;top:0;left:-9999px;margin-top:1px";

body.appendChild( container ).appendChild( div );

// Support: IE8
    // Check if table cells still have offsetWidth/Height when they are set
    // to display:none and there are still other visible table cells in a
    // table row; if so, offsetWidth/Height are not reliable for use when
    // determining if an element has been hidden directly using
    // display:none (it is still safe to use offsets if a parent element is
    // hidden; don safety goggles and see bug #4512 for more information).
    div.innerHTML = "<table><tr><td></td><td>t</td></tr></table>";
    tds = div.getElementsByTagName("td");
    tds[ 0 ].style.cssText = "padding:0;margin:0;border:0;display:none";
    isSupported = ( tds[ 0 ].offsetHeight === 0 );

tds[ 0 ].style.display = "";
    tds[ 1 ].style.display = "none";

// Support: IE8
    // Check if empty table cells still have offsetWidth/Height
    support.reliableHiddenOffsets = isSupported && ( tds[ 0 ].offsetHeight === 0 );

// Check box-sizing and margin behavior.
    div.innerHTML = "";
    div.style.cssText = "box-sizing:border-box;-moz-box-sizing:border-box;-webkit-box-sizing:border-box;padding:1px;border:1px;display:block;width:4px;margin-top:1%;position:absolute;top:1%;";

// Workaround failing boxSizing test due to offsetWidth returning wrong value
    // with some non-1 values of body zoom, ticket #13543
    jQuery.swap( body, body.style.zoom != null ? { zoom: 1 } : {}, function() {
      support.boxSizing = div.offsetWidth === 4;
    });

// Use window.getComputedStyle because jsdom on node.js will break without it.
    if ( window.getComputedStyle ) {
      support.pixelPosition = ( window.getComputedStyle( div, null ) || {} ).top !== "1%";
      support.boxSizingReliable = ( window.getComputedStyle( div, null ) || { width: "4px" } ).width === "4px";

// Check if div with explicit width and no margin-right incorrectly
      // gets computed margin-right based on width of container. (#3333)
      // Fails in WebKit before Feb 2011 nightlies
      // WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
      marginDiv = div.appendChild( document.createElement("div") );
      marginDiv.style.cssText = div.style.cssText = divReset;
      marginDiv.style.marginRight = marginDiv.style.width = "0";
      div.style.width = "1px";

support.reliableMarginRight =
        !parseFloat( ( window.getComputedStyle( marginDiv, null ) || {} ).marginRight );
    }

if ( typeof div.style.zoom !== core_strundefined ) {
      // Support: IE<8
      // Check if natively block-level elements act like inline-block
      // elements when setting their display to 'inline' and giving
      // them layout
      div.innerHTML = "";
      div.style.cssText = divReset + "width:1px;padding:1px;display:inline;zoom:1";
      support.inlineBlockNeedsLayout = ( div.offsetWidth === 3 );

// Support: IE6
      // Check if elements with layout shrink-wrap their children
      div.style.display = "block";
      div.innerHTML = "<div></div>";
      div.firstChild.style.width = "5px";
      support.shrinkWrapBlocks = ( div.offsetWidth !== 3 );

if ( support.inlineBlockNeedsLayout ) {
        // Prevent IE 6 from affecting layout for positioned elements #11048
        // Prevent IE from shrinking the body in IE 7 mode #12869
        // Support: IE<8
        body.style.zoom = 1;
      }
    }

body.removeChild( container );

// Null elements to avoid leaks in IE
    container = div = tds = marginDiv = null;
  });

// Null elements to avoid leaks in IE
  all = select = fragment = opt = a = input = null;

return support;
})({});

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

function internalData( elem, name, data, pvt /* Internal Use Only */ ){
  if ( !jQuery.acceptData( elem ) ) {
    return;
  }

var ret, thisCache,
    internalKey = jQuery.expando,

// We have to handle DOM nodes and JS objects differently because IE6-7
    // can't GC object references properly across the DOM-JS boundary
    isNode = elem.nodeType,

// Only DOM nodes need the global jQuery cache; JS object data is
    // attached directly to the object so GC can occur automatically
    cache = isNode ? jQuery.cache : elem,

// Only defining an ID for JS objects if its cache already exists allows
    // the code to shortcut on the same path as a DOM node with no cache
    id = isNode ? elem[ internalKey ] : elem[ internalKey ] && internalKey;

// Avoid doing any more work than we need to when trying to get data on an
  // object that has no data at all
  if ( (!id || !cache[id] || (!pvt && !cache[id].data)) && data === undefined && typeof name === "string" ) {
    return;
  }

if ( !id ) {
    // Only DOM nodes need a new unique ID for each element since their data
    // ends up in the global cache
    if ( isNode ) {
      id = elem[ internalKey ] = core_deletedIds.pop() || jQuery.guid++;
    } else {
      id = internalKey;
    }
  }

if ( !cache[ id ] ) {
    // Avoid exposing jQuery metadata on plain JS objects when the object
    // is serialized using JSON.stringify
    cache[ id ] = isNode ? {} : { toJSON: jQuery.noop };
  }

// An object can be passed to jQuery.data instead of a key/value pair; this gets
  // shallow copied over onto the existing cache
  if ( typeof name === "object" || typeof name === "function" ) {
    if ( pvt ) {
      cache[ id ] = jQuery.extend( cache[ id ], name );
    } else {
      cache[ id ].data = jQuery.extend( cache[ id ].data, name );
    }
  }

thisCache = cache[ id ];

// jQuery data() is stored in a separate object inside the object's internal data
  // cache in order to avoid key collisions between internal data and user-defined
  // data.
  if ( !pvt ) {
    if ( !thisCache.data ) {
      thisCache.data = {};
    }

thisCache = thisCache.data;
  }

if ( data !== undefined ) {
    thisCache[ jQuery.camelCase( name ) ] = data;
  }

// Check for both converted-to-camel and non-converted data property names
  // If a data property was specified
  if ( typeof name === "string" ) {

// First Try to find as-is property data
    ret = thisCache[ name ];

// Test for null|undefined property data
    if ( ret == null ) {

// Try to find the camelCased property
      ret = thisCache[ jQuery.camelCase( name ) ];
    }
  } else {
    ret = thisCache;
  }

return ret;
}

function internalRemoveData( elem, name, pvt ) {
  if ( !jQuery.acceptData( elem ) ) {
    return;
  }

var thisCache, i,
    isNode = elem.nodeType,

// See jQuery.data for more information
    cache = isNode ? jQuery.cache : elem,
    id = isNode ? elem[ jQuery.expando ] : jQuery.expando;

// If there is already no cache entry for this object, there is no
  // purpose in continuing
  if ( !cache[ id ] ) {
    return;
  }

if ( name ) {

thisCache = pvt ? cache[ id ] : cache[ id ].data;

if ( thisCache ) {

// Support array or space separated string names for data keys
      if ( !jQuery.isArray( name ) ) {

// try the string as a key before any manipulation
        if ( name in thisCache ) {
          name = [ name ];
        } else {

// split the camel cased version by spaces unless a key with the spaces exists
          name = jQuery.camelCase( name );
          if ( name in thisCache ) {
            name = [ name ];
          } else {
            name = name.split(" ");
          }
        }
      } else {
        // 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 = name.concat( jQuery.map( name, jQuery.camelCase ) );
      }

i = name.length;
      while ( i-- ) {
        delete thisCache[ name[i] ];
      }

// If there is no data left in the cache, we want to continue
      // and let the cache object itself get destroyed
      if ( pvt ? !isEmptyDataObject(thisCache) : !jQuery.isEmptyObject(thisCache) ) {
        return;
      }
    }
  }

// See jQuery.data for more information
  if ( !pvt ) {
    delete cache[ id ].data;

// Don't destroy the parent cache unless the internal data object
    // had been the only thing left in it
    if ( !isEmptyDataObject( cache[ id ] ) ) {
      return;
    }
  }

// Destroy the cache
  if ( isNode ) {
    jQuery.cleanData( [ elem ], true );

// Use delete when supported for expandos or `cache` is not a window per isWindow (#10080)
  /* jshint eqeqeq: false */
  } else if ( jQuery.support.deleteExpando || cache != cache.window ) {
    /* jshint eqeqeq: true */
    delete cache[ id ];

// When all else fails, null
  } else {
    cache[ id ] = null;
  }
}

jQuery.extend({
  cache: {},

// The following elements throw uncatchable exceptions if you
  // attempt to add expando properties to them.
  noData: {
    "applet": true,
    "embed": true,
    // Ban all objects except for Flash (which handle expandos)
    "object": "clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
  },

hasData: function( elem ) {
    elem = elem.nodeType ? jQuery.cache[ elem[jQuery.expando] ] : elem[ jQuery.expando ];
    return !!elem && !isEmptyDataObject( elem );
  },

data: function( elem, name, data ) {
    return internalData( elem, name, data );
  },

removeData: function( elem, name ) {
    return internalRemoveData( elem, name );
  },

// For internal use only.
  _data: function( elem, name, data ) {
    return internalData( elem, name, data, true );
  },

_removeData: function( elem, name ) {
    return internalRemoveData( elem, name, true );
  },

// A method for determining if a DOM node can handle the data expando
  acceptData: function( elem ) {
    // Do not set data on non-element because it will not be cleared (#8335).
    if ( elem.nodeType && elem.nodeType !== 1 && elem.nodeType !== 9 ) {
      return false;
    }

var noData = elem.nodeName && jQuery.noData[ elem.nodeName.toLowerCase() ];

// nodes accept data unless otherwise specified; rejection can be conditional
    return !noData || noData !== true && elem.getAttribute("classid") === noData;
  }
});

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

// Special expections of .data basically thwart jQuery.access,
    // so implement the relevant behavior ourselves

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

if ( elem.nodeType === 1 && !jQuery._data( elem, "parsedAttrs" ) ) {
          attrs = elem.attributes;
          for ( ; i < attrs.length; i++ ) {
            name = attrs[i].name;

if ( name.indexOf("data-") === 0 ) {
              name = jQuery.camelCase( name.slice(5) );

dataAttr( elem, name, data[ name ] );
            }
          }
          jQuery._data( elem, "parsedAttrs", true );
        }
      }

return data;
    }

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

return arguments.length > 1 ?

// Sets one value
      this.each(function() {
        jQuery.data( this, key, value );
      }) :

// Gets one value
      // Try to fetch any internally stored data first
      elem ? dataAttr( elem, key, jQuery.data( elem, key ) ) : null;
  },

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

function dataAttr( elem, key, data ) {
  // If nothing was found internally, try to fetch any
  // data from the HTML5 data-* attribute
  if ( data === undefined && elem.nodeType === 1 ) {

var 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
      jQuery.data( elem, key, data );

} else {
      data = undefined;
    }
  }

return data;
}

// checks a cache object for emptiness
function isEmptyDataObject( obj ) {
  var name;
  for ( name in obj ) {

// if the public data object is empty, the private is still empty
    if ( name === "data" && jQuery.isEmptyObject( obj[name] ) ) {
      continue;
    }
    if ( name !== "toJSON" ) {
      return false;
    }
  }

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

if ( elem ) {
      type = ( type || "fx" ) + "queue";
      queue = jQuery._data( elem, type );

// Speed up dequeue by getting out quickly if this is just a lookup
      if ( data ) {
        if ( !queue || jQuery.isArray(data) ) {
          queue = jQuery._data( 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 intended for public consumption - generates a queueHooks object, or returns the current one
  _queueHooks: function( elem, type ) {
    var key = type + "queueHooks";
    return jQuery._data( elem, key ) || jQuery._data( elem, key, {
      empty: jQuery.Callbacks("once memory").add(function() {
        jQuery._removeData( elem, type + "queue" );
        jQuery._removeData( elem, 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 );
    });
  },
  // Based off of the plugin by Clint Helfers, with permission.
  // http://blindsignals.com/index.php/2009/07/jquery-delay/
  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 );
      };
    });
  },
  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 = jQuery._data( elements[ i ], type + "queueHooks" );
      if ( tmp && tmp.empty ) {
        count++;
        tmp.empty.add( resolve );
      }
    }
    resolve();
    return defer.promise( obj );
  }
});
var nodeHook, boolHook,
  rclass = /[\t\r\n\f]/g,
  rreturn = /\r/g,
  rfocusable = /^(?:input|select|textarea|button|object)$/i,
  rclickable = /^(?:a|area)$/i,
  ruseDefault = /^(?:checked|selected)$/i,
  getSetAttribute = jQuery.support.getSetAttribute,
  getSetInput = jQuery.support.input;

jQuery.fn.extend({
  attr: function( name, value ) {
    return jQuery.access( this, jQuery.attr, name, value, arguments.length > 1 );
  },

removeAttr: function( name ) {
    return this.each(function() {
      jQuery.removeAttr( this, name );
    });
  },

prop: function( name, value ) {
    return jQuery.access( this, jQuery.prop, name, value, arguments.length > 1 );
  },

removeProp: function( name ) {
    name = jQuery.propFix[ name ] || name;
    return this.each(function() {
      // try/catch handles cases where IE balks (such as removing a property on window)
      try {
        this[ name ] = undefined;
        delete this[ name ];
      } catch( e ) {}
    });
  },

addClass: function( value ) {
    var classes, elem, cur, clazz, j,
      i = 0,
      len = this.length,
      proceed = typeof value === "string" && value;

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( core_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 + " ";
            }
          }
          elem.className = jQuery.trim( cur );

}
      }
    }

return this;
  },

removeClass: function( value ) {
    var classes, elem, cur, clazz, j,
      i = 0,
      len = this.length,
      proceed = arguments.length === 0 || typeof value === "string" && value;

if ( jQuery.isFunction( value ) ) {
      return this.each(function( j ) {
        jQuery( this ).removeClass( value.call( this, j, this.className ) );
      });
    }
    if ( proceed ) {
      classes = ( value || "" ).match( core_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 + " ", " " );
            }
          }
          elem.className = value ? jQuery.trim( cur ) : "";
        }
      }
    }

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( core_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 === core_strundefined || type === "boolean" ) {
        if ( this.className ) {
          // store className if set
          jQuery._data( 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 ? "" : jQuery._data( 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;
  },

val: function( value ) {
    var ret, hooks, 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 ) {
        // Use proper attribute retrieval(#6932, #12072)
        var val = jQuery.find.attr( elem, "value" );
        return val != null ?
          val :
          elem.text;
      }
    },
    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 ];

// oldIE 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
              ( jQuery.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( jQuery(option).val(), values ) >= 0) ) {
            optionSet = true;
          }
        }

// force browsers to behave consistently when non-matching value is set
        if ( !optionSet ) {
          elem.selectedIndex = -1;
        }
        return values;
      }
    }
  },

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 === core_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( core_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
          if ( getSetInput && getSetAttribute || !ruseDefault.test( name ) ) {
            elem[ propName ] = false;
          // Support: IE<9
          // Also clear defaultChecked/defaultSelected (if appropriate)
          } else {
            elem[ jQuery.camelCase( "default-" + name ) ] =
              elem[ propName ] = false;
          }

// See #9699 for explanation of this approach (setting first, then removal)
        } else {
          jQuery.attr( elem, name, "" );
        }

elem.removeAttribute( getSetAttribute ? name : propName );
      }
    }
  },

attrHooks: {
    type: {
      set: function( elem, value ) {
        if ( !jQuery.support.radioValue && value === "radio" && jQuery.nodeName(elem, "input") ) {
          // Setting the type on a radio button after the value resets the value in IE6-9
          // Reset value to default in case type is set after value during creation
          var val = elem.value;
          elem.setAttribute( "type", value );
          if ( val ) {
            elem.value = val;
          }
          return value;
        }
      }
    }
  },

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 ) {
        // elem.tabIndex doesn't always return the correct value when it hasn't been explicitly set
        // http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
        // Use proper attribute retrieval(#12072)
        var tabindex = jQuery.find.attr( elem, "tabindex" );

return tabindex ?
          parseInt( tabindex, 10 ) :
          rfocusable.test( elem.nodeName ) || rclickable.test( elem.nodeName ) && elem.href ?
            0 :
            -1;
      }
    }
  }
});

// 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 if ( getSetInput && getSetAttribute || !ruseDefault.test( name ) ) {
      // IE<8 needs the *property* name
      elem.setAttribute( !getSetAttribute && jQuery.propFix[ name ] || name, name );

// Use defaultChecked and defaultSelected for oldIE
    } else {
      elem[ jQuery.camelCase( "default-" + name ) ] = elem[ name ] = true;
    }

return name;
  }
};
jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) {
  var getter = jQuery.expr.attrHandle[ name ] || jQuery.find.attr;

jQuery.expr.attrHandle[ name ] = getSetInput && getSetAttribute || !ruseDefault.test( name ) ?
    function( elem, name, isXML ) {
      var fn = jQuery.expr.attrHandle[ name ],
        ret = isXML ?
          undefined :
          /* jshint eqeqeq: false */
          (jQuery.expr.attrHandle[ name ] = undefined) !=
            getter( elem, name, isXML ) ?

name.toLowerCase() :
            null;
      jQuery.expr.attrHandle[ name ] = fn;
      return ret;
    } :
    function( elem, name, isXML ) {
      return isXML ?
        undefined :
        elem[ jQuery.camelCase( "default-" + name ) ] ?
          name.toLowerCase() :
          null;
    };
});

// fix oldIE attroperties
if ( !getSetInput || !getSetAttribute ) {
  jQuery.attrHooks.value = {
    set: function( elem, value, name ) {
      if ( jQuery.nodeName( elem, "input" ) ) {
        // Does not return so that setAttribute is also used
        elem.defaultValue = value;
      } else {
        // Use nodeHook if defined (#1954); otherwise setAttribute is fine
        return nodeHook && nodeHook.set( elem, value, name );
      }
    }
  };
}

// IE6/7 do not support getting/setting some attributes with get/setAttribute
if ( !getSetAttribute ) {

// Use this for any attribute in IE6/7
  // This fixes almost every IE6/7 issue
  nodeHook = {
    set: function( elem, value, name ) {
      // Set the existing or create a new attribute node
      var ret = elem.getAttributeNode( name );
      if ( !ret ) {
        elem.setAttributeNode(
          (ret = elem.ownerDocument.createAttribute( name ))
        );
      }

ret.value = value += "";

// Break association with cloned elements by also using setAttribute (#9646)
      return name === "value" || value === elem.getAttribute( name ) ?
        value :
        undefined;
    }
  };
  jQuery.expr.attrHandle.id = jQuery.expr.attrHandle.name = jQuery.expr.attrHandle.coords =
    // Some attributes are constructed with empty-string values when not defined
    function( elem, name, isXML ) {
      var ret;
      return isXML ?
        undefined :
        (ret = elem.getAttributeNode( name )) && ret.value !== "" ?
          ret.value :
          null;
    };
  jQuery.valHooks.button = {
    get: function( elem, name ) {
      var ret = elem.getAttributeNode( name );
      return ret && ret.specified ?
        ret.value :
        undefined;
    },
    set: nodeHook.set
  };

// Set contenteditable to false on removals(#10429)
  // Setting to empty string throws an error as an invalid value
  jQuery.attrHooks.contenteditable = {
    set: function( elem, value, name ) {
      nodeHook.set( elem, value === "" ? false : value, name );
    }
  };

// Set width and height to auto instead of 0 on empty string( Bug #8150 )
  // This is for removals
  jQuery.each([ "width", "height" ], function( i, name ) {
    jQuery.attrHooks[ name ] = {
      set: function( elem, value ) {
        if ( value === "" ) {
          elem.setAttribute( name, "auto" );
          return value;
        }
      }
    };
  });
}

// Some attributes require a special call on IE
// http://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
if ( !jQuery.support.hrefNormalized ) {
  // href/src property should get the full normalized URL (#10299/#12915)
  jQuery.each([ "href", "src" ], function( i, name ) {
    jQuery.propHooks[ name ] = {
      get: function( elem ) {
        return elem.getAttribute( name, 4 );
      }
    };
  });
}

if ( !jQuery.support.style ) {
  jQuery.attrHooks.style = {
    get: function( elem ) {
      // Return undefined in the case of empty string
      // Note: IE uppercases css property names, but if we were to .toLowerCase()
      // .cssText, that would destroy case senstitivity in URL's, like in "background"
      return elem.style.cssText || undefined;
    },
    set: function( elem, value ) {
      return ( elem.style.cssText = value + "" );
    }
  };
}

// Safari mis-reports the default selected property of an option
// Accessing the parent's selectedIndex property fixes it
if ( !jQuery.support.optSelected ) {
  jQuery.propHooks.selected = {
    get: function( elem ) {
      var parent = elem.parentNode;

if ( parent ) {
        parent.selectedIndex;

// Make sure that it also works with optgroups, see #5701
        if ( 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;
});

// IE6/7 call enctype encoding
if ( !jQuery.support.enctype ) {
  jQuery.propFix.enctype = "encoding";
}

// 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 ( !jQuery.support.checkOn ) {
    jQuery.valHooks[ this ].get = function( elem ) {
      // Support: Webkit
      // "" is returned instead of "on" if a value isn't specified
      return elem.getAttribute("value") === null ? "on" : elem.value;
    };
  }
});
var rformElems = /^(?:input|select|textarea)$/i,
  rkeyEvent = /^key/,
  rmouseEvent = /^(?:mouse|contextmenu)|click/,
  rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,
  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 tmp, events, t, handleObjIn,
      special, eventHandle, handleObj,
      handlers, type, namespaces, origType,
      elemData = jQuery._data( 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 !== core_strundefined && (!e || jQuery.event.triggered !== e.type) ?
          jQuery.event.dispatch.apply( eventHandle.elem, arguments ) :
          undefined;
      };
      // Add elem as a property of the handle fn to prevent a memory leak with IE non-native events
      eventHandle.elem = elem;
    }

// Handle multiple events separated by a space
    types = ( types || "" ).match( core_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/attachEvent if the special events handler returns false
        if ( !special.setup || special.setup.call( elem, data, namespaces, eventHandle ) === false ) {
          // Bind the global event handler to the element
          if ( elem.addEventListener ) {
            elem.addEventListener( type, eventHandle, false );

} else if ( elem.attachEvent ) {
            elem.attachEvent( "on" + type, eventHandle );
          }
        }
      }

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;
    }

// Nullify elem to prevent memory leaks in IE
    elem = null;
  },

// Detach an event or set of events from an element
  remove: function( elem, types, handler, selector, mappedTypes ) {
    var j, handleObj, tmp,
      origCount, t, events,
      special, handlers, type,
      namespaces, origType,
      elemData = jQuery.hasData( elem ) && jQuery._data( elem );

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

// Once for each type.namespace in types; type may be omitted
    types = ( types || "" ).match( core_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;

// removeData also checks for emptiness and clears the expando if empty
      // so use it instead of delete
      jQuery._removeData( elem, "events" );
    }
  },

trigger: function( event, data, elem, onlyHandlers ) {
    var handle, ontype, cur,
      bubbleType, special, tmp, i,
      eventPath = [ elem || document ],
      type = core_hasOwn.call( event, "type" ) ? event.type : event,
      namespaces = core_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 = ( jQuery._data( cur, "events" ) || {} )[ event.type ] && jQuery._data( cur, "handle" );
      if ( handle ) {
        handle.apply( cur, data );
      }

// Native handler
      handle = ontype && cur[ ontype ];
      if ( handle && jQuery.acceptData( cur ) && handle.apply && handle.apply( cur, data ) === 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.
        // Can't use an .isFunction() check here because IE6/7 fails that test.
        // Don't do default actions on window, that's where global variables be (#6170)
        if ( ontype && 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;
          try {
            elem[ type ]();
          } catch ( e ) {
            // IE<9 dies on focus/blur to hidden element (#1486,#12518)
            // only reproducible on winXP IE8 native, not IE9 in IE8 mode
          }
          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, ret, handleObj, matched, j,
      handlerQueue = [],
      args = core_slice.call( arguments ),
      handlers = ( jQuery._data( 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 sel, handleObj, matches, i,
      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") ) {

/* jshint eqeqeq: false */
      for ( ; cur != this; cur = cur.parentNode || this ) {
        /* jshint eqeqeq: true */

// Don't check non-elements (#13208)
        // Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
        if ( cur.nodeType === 1 && (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;
  },

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: IE<9
    // Fix target property (#1925)
    if ( !event.target ) {
      event.target = originalEvent.srcElement || document;
    }

// Support: Chrome 23+, Safari?
    // Target should not be a text node (#504, #13143)
    if ( event.target.nodeType === 3 ) {
      event.target = event.target.parentNode;
    }

// Support: IE<9
    // For mouse/key events, metaKey==false if it's undefined (#3368, #11328)
    event.metaKey = !!event.metaKey;

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

// 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 fromElement offsetX offsetY pageX pageY screenX screenY toElement".split(" "),
    filter: function( event, original ) {
      var body, eventDoc, doc,
        button = original.button,
        fromElement = original.fromElement;

// 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 relatedTarget, if necessary
      if ( !event.relatedTarget && fromElement ) {
        event.relatedTarget = fromElement === event.target ? original.toElement : fromElement;
      }

// 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;
    }
  },

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 ) {
          try {
            this.focus();
            return false;
          } catch ( e ) {
            // Support: IE<9
            // If we error on focus to hidden element (#1486, #12518),
            // let .trigger() run the handlers
          }
        }
      },
      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 ( jQuery.nodeName( this, "input" ) && this.type === "checkbox" && this.click ) {
          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 ) {

// Even when returnValue equals to undefined Firefox will still show alert
        if ( event.result !== undefined ) {
          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 = document.removeEventListener ?
  function( elem, type, handle ) {
    if ( elem.removeEventListener ) {
      elem.removeEventListener( type, handle, false );
    }
  } :
  function( elem, type, handle ) {
    var name = "on" + type;

if ( elem.detachEvent ) {

// #8545, #7054, preventing memory leaks for custom events in IE6-8
      // detachEvent needed property on element, by name of that event, to properly expose it to GC
      if ( typeof elem[ name ] === core_strundefined ) {
        elem[ name ] = null;
      }

elem.detachEvent( name, handle );
    }
  };

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.returnValue === false ||
      src.getPreventDefault && src.getPreventDefault() ) ? 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 ) {
      return;
    }

// If preventDefault exists, run it on the original event
    if ( e.preventDefault ) {
      e.preventDefault();

// Support: IE
    // Otherwise set the returnValue property of the original event to false
    } else {
      e.returnValue = false;
    }
  },
  stopPropagation: function() {
    var e = this.originalEvent;

this.isPropagationStopped = returnTrue;
    if ( !e ) {
      return;
    }
    // If stopPropagation exists, run it on the original event
    if ( e.stopPropagation ) {
      e.stopPropagation();
    }

// Support: IE
    // Set the cancelBubble property of the original event to true
    e.cancelBubble = true;
  },
  stopImmediatePropagation: function() {
    this.isImmediatePropagationStopped = returnTrue;
    this.stopPropagation();
  }
};

// Create mouseenter/leave events using mouseover/out and event-time checks
jQuery.each({
  mouseenter: "mouseover",
  mouseleave: "mouseout"
}, 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;
    }
  };
});

// IE submit delegation
if ( !jQuery.support.submitBubbles ) {

jQuery.event.special.submit = {
    setup: function() {
      // Only need this for delegated form submit events
      if ( jQuery.nodeName( this, "form" ) ) {
        return false;
      }

// Lazy-add a submit handler when a descendant form may potentially be submitted
      jQuery.event.add( this, "click._submit keypress._submit", function( e ) {
        // Node name check avoids a VML-related crash in IE (#9807)
        var elem = e.target,
          form = jQuery.nodeName( elem, "input" ) || jQuery.nodeName( elem, "button" ) ? elem.form : undefined;
        if ( form && !jQuery._data( form, "submitBubbles" ) ) {
          jQuery.event.add( form, "submit._submit", function( event ) {
            event._submit_bubble = true;
          });
          jQuery._data( form, "submitBubbles", true );
        }
      });
      // return undefined since we don't need an event listener
    },

postDispatch: function( event ) {
      // If form was submitted by the user, bubble the event up the tree
      if ( event._submit_bubble ) {
        delete event._submit_bubble;
        if ( this.parentNode && !event.isTrigger ) {
          jQuery.event.simulate( "submit", this.parentNode, event, true );
        }
      }
    },

teardown: function() {
      // Only need this for delegated form submit events
      if ( jQuery.nodeName( this, "form" ) ) {
        return false;
      }

// Remove delegated handlers; cleanData eventually reaps submit handlers attached above
      jQuery.event.remove( this, "._submit" );
    }
  };
}

// IE change delegation and checkbox/radio fix
if ( !jQuery.support.changeBubbles ) {

jQuery.event.special.change = {

setup: function() {

if ( rformElems.test( this.nodeName ) ) {
        // IE doesn't fire change on a check/radio until blur; trigger it on click
        // after a propertychange. Eat the blur-change in special.change.handle.
        // This still fires onchange a second time for check/radio after blur.
        if ( this.type === "checkbox" || this.type === "radio" ) {
          jQuery.event.add( this, "propertychange._change", function( event ) {
            if ( event.originalEvent.propertyName === "checked" ) {
              this._just_changed = true;
            }
          });
          jQuery.event.add( this, "click._change", function( event ) {
            if ( this._just_changed && !event.isTrigger ) {
              this._just_changed = false;
            }
            // Allow triggered, simulated change events (#11500)
            jQuery.event.simulate( "change", this, event, true );
          });
        }
        return false;
      }
      // Delegated event; lazy-add a change handler on descendant inputs
      jQuery.event.add( this, "beforeactivate._change", function( e ) {
        var elem = e.target;

if ( rformElems.test( elem.nodeName ) && !jQuery._data( elem, "changeBubbles" ) ) {
          jQuery.event.add( elem, "change._change", function( event ) {
            if ( this.parentNode && !event.isSimulated && !event.isTrigger ) {
              jQuery.event.simulate( "change", this.parentNode, event, true );
            }
          });
          jQuery._data( elem, "changeBubbles", true );
        }
      });
    },

handle: function( event ) {
      var elem = event.target;

// Swallow native change events from checkbox/radio, we already triggered them above
      if ( this !== elem || event.isSimulated || event.isTrigger || (elem.type !== "radio" && elem.type !== "checkbox") ) {
        return event.handleObj.handler.apply( this, arguments );
      }
    },

teardown: function() {
      jQuery.event.remove( this, "._change" );

return !rformElems.test( this.nodeName );
    }
  };
}

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

// Attach a single capturing handler while someone wants focusin/focusout
    var attaches = 0,
      handler = function( event ) {
        jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ), true );
      };

jQuery.event.special[ fix ] = {
      setup: function() {
        if ( attaches++ === 0 ) {
          document.addEventListener( orig, handler, true );
        }
      },
      teardown: function() {
        if ( --attaches === 0 ) {
          document.removeEventListener( orig, handler, true );
        }
      }
    };
  });
}

jQuery.fn.extend({

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

// 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 isSimple = /^.[^:#\[\.,]*$/,
  rparentsprev = /^(?:parents|prev(?:Until|All))/,
  rneedsContext = jQuery.expr.match.needsContext,
  // methods guaranteed to produce a unique set when starting from a unique set
  guaranteedUnique = {
    children: true,
    contents: true,
    next: true,
    prev: true
  };

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

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;
  },

has: function( target ) {
    var i,
      targets = jQuery( target, this ),
      len = targets.length;

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

not: function( selector ) {
    return this.pushStack( winnow(this, selector || [], true) );
  },

filter: function( selector ) {
    return this.pushStack( winnow(this, selector || [], false) );
  },

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;
  },

closest: function( selectors, context ) {
    var cur,
      i = 0,
      l = this.length,
      ret = [],
      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)) ) {

cur = ret.push( cur );
          break;
        }
      }
    }

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

// Determine the position of an element within
  // the matched set of elements
  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 jQuery.inArray( this[0], jQuery( elem ) );
    }

// Locate the position of the desired element
    return jQuery.inArray(
      // If it receives a jQuery object, the first element is used
      elem.jquery ? elem[0] : elem, this );
  },

add: function( selector, context ) {
    var set = typeof selector === "string" ?
        jQuery( selector, context ) :
        jQuery.makeArray( selector && selector.nodeType ? [ selector ] : selector ),
      all = jQuery.merge( this.get(), set );

return this.pushStack( jQuery.unique(all) );
  },

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

function sibling( cur, dir ) {
  do {
    cur = cur[ dir ];
  } while ( cur && 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 jQuery.nodeName( elem, "iframe" ) ?
      elem.contentDocument || elem.contentWindow.document :
      jQuery.merge( [], elem.childNodes );
  }
}, function( name, fn ) {
  jQuery.fn[ name ] = function( until, selector ) {
    var ret = jQuery.map( this, fn, until );

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

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

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

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

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

jQuery.extend({
  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;
      }));
  },

dir: function( elem, dir, until ) {
    var matched = [],
      cur = elem[ dir ];

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

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

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

return r;
  }
});

// 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 ( isSimple.test( qualifier ) ) {
      return jQuery.filter( qualifier, elements, not );
    }

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

return jQuery.grep( elements, function( elem ) {
    return ( jQuery.inArray( elem, qualifier ) >= 0 ) !== not;
  });
}
function createSafeFragment( document ) {
  var list = nodeNames.split( "|" ),
    safeFrag = document.createDocumentFragment();

if ( safeFrag.createElement ) {
    while ( list.length ) {
      safeFrag.createElement(
        list.pop()
      );
    }
  }
  return safeFrag;
}

// We have to close these tags to support XHTML (#13200)
  wrapMap = {
    option: [ 1, "<select multiple='multiple'>", "</select>" ],
    legend: [ 1, "<fieldset>", "</fieldset>" ],
    area: [ 1, "<map>", "</map>" ],
    param: [ 1, "<object>", "</object>" ],
    thead: [ 1, "<table>", "</table>" ],
    tr: [ 2, "<table><tbody>", "</tbody></table>" ],
    col: [ 2, "<table><tbody></tbody><colgroup>", "</colgroup></table>" ],
    td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],

// IE6-8 can't serialize link, script, style, or any html5 (NoScope) tags,
    // unless wrapped in a div with non-breaking characters in front of it.
    _default: jQuery.support.htmlSerialize ? [ 0, "", "" ] : [ 1, "X<div>", "</div>"  ]
  },
  safeFragment = createSafeFragment( document ),
  fragmentDiv = safeFragment.appendChild( document.createElement("div") );

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

jQuery.fn.extend({
  text: function( value ) {
    return jQuery.access( this, function( value ) {
      return value === undefined ?
        jQuery.text( this ) :
        this.empty().append( ( this[0] && this[0].ownerDocument || document ).createTextNode( 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 );
      }
    });
  },

// keepData is for internal use only--do not document
  remove: function( selector, keepData ) {
    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++ ) {
      // Remove element nodes and prevent memory leaks
      if ( elem.nodeType === 1 ) {
        jQuery.cleanData( getAll( elem, false ) );
      }

// Remove any remaining nodes
      while ( elem.firstChild ) {
        elem.removeChild( elem.firstChild );
      }

// If this is a select, ensure that it displays empty (#12336)
      // Support: IE<9
      if ( elem.options && jQuery.nodeName( elem, "select" ) ) {
        elem.options.length = 0;
      }
    }

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

if ( value === undefined ) {
        return elem.nodeType === 1 ?
          elem.innerHTML.replace( rinlinejQuery, "" ) :
          undefined;
      }

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

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

try {
          for (; i < l; i++ ) {
            // Remove element nodes and prevent memory leaks
            elem = this[i] || {};
            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
      // Snapshot the DOM in case .domManip sweeps something relevant into its fragment
      args = jQuery.map( this, function( elem ) {
        return [ elem.nextSibling, elem.parentNode ];
      }),
      i = 0;

// Make the changes, replacing each context element with the new content
    this.domManip( arguments, function( elem ) {
      var next = args[ i++ ],
        parent = args[ i++ ];

if ( parent ) {
        // Don't use the snapshot next if it has moved (#13810)
        if ( next && next.parentNode !== parent ) {
          next = this.nextSibling;
        }
        jQuery( this ).remove();
        parent.insertBefore( elem, next );
      }
    // Allow new content to include elements from the context set
    }, true );

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

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

domManip: function( args, callback, allowIntersection ) {

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

var first, node, hasScripts,
      scripts, doc, fragment,
      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" || jQuery.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, allowIntersection );
      });
    }

if ( l ) {
      fragment = jQuery.buildFragment( args, this[ 0 ].ownerDocument, false, !allowIntersection && 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 ) {
              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 || "" ) &&
              !jQuery._data( node, "globalEval" ) && jQuery.contains( doc, node ) ) {

if ( node.src ) {
                // Hope ajax is available...
                jQuery._evalUrl( node.src );
              } else {
                jQuery.globalEval( ( node.text || node.textContent || node.innerHTML || "" ).replace( rcleanScript, "" ) );
              }
            }
          }
        }

// Fix #11809: Avoid leaking memory
        fragment = first = null;
      }
    }

return this;
  }
});

// Support: IE<8
// Manipulating tables requires a tbody
function manipulationTarget( elem, content ) {
  return jQuery.nodeName( elem, "table" ) &&
    jQuery.nodeName( content.nodeType === 1 ? 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 = (jQuery.find.attr( elem, "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 elem,
    i = 0;
  for ( ; (elem = elems[i]) != null; i++ ) {
    jQuery._data( elem, "globalEval", !refElements || jQuery._data( refElements[i], "globalEval" ) );
  }
}

function cloneCopyEvent( src, dest ) {

if ( dest.nodeType !== 1 || !jQuery.hasData( src ) ) {
    return;
  }

var type, i, l,
    oldData = jQuery._data( src ),
    curData = jQuery._data( dest, oldData ),
    events = oldData.events;

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

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

// make the cloned public data object a copy from the original
  if ( curData.data ) {
    curData.data = jQuery.extend( {}, curData.data );
  }
}

function fixCloneNodeIssues( src, dest ) {
  var nodeName, e, data;

// We do not need to do anything for non-Elements
  if ( dest.nodeType !== 1 ) {
    return;
  }

nodeName = dest.nodeName.toLowerCase();

// IE6-8 copies events bound via attachEvent when using cloneNode.
  if ( !jQuery.support.noCloneEvent && dest[ jQuery.expando ] ) {
    data = jQuery._data( dest );

for ( e in data.events ) {
      jQuery.removeEvent( dest, e, data.handle );
    }

// Event data gets referenced instead of copied if the expando gets copied too
    dest.removeAttribute( jQuery.expando );
  }

// IE blanks contents when cloning scripts, and tries to evaluate newly-set text
  if ( nodeName === "script" && dest.text !== src.text ) {
    disableScript( dest ).text = src.text;
    restoreScript( dest );

// IE6-10 improperly clones children of object elements using classid.
  // IE10 throws NoModificationAllowedError if parent is null, #12132.
  } else if ( nodeName === "object" ) {
    if ( dest.parentNode ) {
      dest.outerHTML = src.outerHTML;
    }

// This path appears unavoidable for IE9. When cloning an object
    // element in IE9, the outerHTML strategy above is not sufficient.
    // If the src has innerHTML and the destination does not,
    // copy the src.innerHTML into the dest.innerHTML. #10324
    if ( jQuery.support.html5Clone && ( src.innerHTML && !jQuery.trim(dest.innerHTML) ) ) {
      dest.innerHTML = src.innerHTML;
    }

} else if ( nodeName === "input" && manipulation_rcheckableType.test( src.type ) ) {
    // IE6-8 fails to persist the checked state of a cloned checkbox
    // or radio button. Worse, IE6-7 fail to give the cloned element
    // a checked appearance if the defaultChecked value isn't also set

dest.defaultChecked = dest.checked = src.checked;

// IE6-7 get confused and end up setting the value of a cloned
    // checkbox/radio button to an empty string instead of "on"
    if ( dest.value !== src.value ) {
      dest.value = src.value;
    }

// IE6-8 fails to return the selected option to the default selected
  // state when cloning options
  } else if ( nodeName === "option" ) {
    dest.defaultSelected = dest.selected = src.defaultSelected;

// IE6-8 fails to set the defaultValue to the correct value when
  // cloning other types of input fields
  } else if ( nodeName === "input" || nodeName === "textarea" ) {
    dest.defaultValue = src.defaultValue;
  }
}

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

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

// Modern browsers can apply jQuery collections as arrays, but oldIE needs a .get()
      core_push.apply( ret, elems.get() );
    }

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

function getAll( context, tag ) {
  var elems, elem,
    i = 0,
    found = typeof context.getElementsByTagName !== core_strundefined ? context.getElementsByTagName( tag || "*" ) :
      typeof context.querySelectorAll !== core_strundefined ? context.querySelectorAll( tag || "*" ) :
      undefined;

if ( !found ) {
    for ( found = [], elems = context.childNodes || context; (elem = elems[i]) != null; i++ ) {
      if ( !tag || jQuery.nodeName( elem, tag ) ) {
        found.push( elem );
      } else {
        jQuery.merge( found, getAll( elem, tag ) );
      }
    }
  }

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

// Used in buildFragment, fixes the defaultChecked property
function fixDefaultChecked( elem ) {
  if ( manipulation_rcheckableType.test( elem.type ) ) {
    elem.defaultChecked = elem.checked;
  }
}

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

if ( jQuery.support.html5Clone || jQuery.isXMLDoc(elem) || !rnoshimcache.test( "<" + elem.nodeName + ">" ) ) {
      clone = elem.cloneNode( true );

// IE<=8 does not properly clone detached, unknown element nodes
    } else {
      fragmentDiv.innerHTML = elem.outerHTML;
      fragmentDiv.removeChild( clone = fragmentDiv.firstChild );
    }

if ( (!jQuery.support.noCloneEvent || !jQuery.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 );

// Fix all IE cloning issues
      for ( i = 0; (node = srcElements[i]) != null; ++i ) {
        // Ensure that the destination node is not null; Fixes #9587
        if ( destElements[i] ) {
          fixCloneNodeIssues( node, 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; (node = srcElements[i]) != null; i++ ) {
          cloneCopyEvent( node, destElements[i] );
        }
      } else {
        cloneCopyEvent( elem, clone );
      }
    }

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

destElements = srcElements = node = null;

// Return the cloned set
    return clone;
  },

buildFragment: function( elems, context, scripts, selection ) {
    var j, elem, contains,
      tmp, tag, tbody, wrap,
      l = elems.length,

// Ensure a safe fragment
      safe = createSafeFragment( context ),

nodes = [],
      i = 0;

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

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

// Add nodes directly
        if ( jQuery.type( elem ) === "object" ) {
          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 || safe.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;
          }

// Manually add leading whitespace removed by IE
          if ( !jQuery.support.leadingWhitespace && rleadingWhitespace.test( elem ) ) {
            nodes.push( context.createTextNode( rleadingWhitespace.exec( elem )[0] ) );
          }

// Remove IE's autoinserted <tbody> from table fragments
          if ( !jQuery.support.tbody ) {

// String was a <table>, *may* have spurious <tbody>
            elem = tag === "table" && !rtbody.test( elem ) ?
              tmp.firstChild :

// String was a bare <thead> or <tfoot>
              wrap[1] === "<table>" && !rtbody.test( elem ) ?
                tmp :
                0;

j = elem && elem.childNodes.length;
            while ( j-- ) {
              if ( jQuery.nodeName( (tbody = elem.childNodes[j]), "tbody" ) && !tbody.childNodes.length ) {
                elem.removeChild( tbody );
              }
            }
          }

jQuery.merge( nodes, tmp.childNodes );

// Fix #12392 for WebKit and IE > 9
          tmp.textContent = "";

// Fix #12392 for oldIE
          while ( tmp.firstChild ) {
            tmp.removeChild( tmp.firstChild );
          }

// Remember the top-level container for proper cleanup
          tmp = safe.lastChild;
        }
      }
    }

// Fix #11356: Clear elements from fragment
    if ( tmp ) {
      safe.removeChild( tmp );
    }

// Reset defaultChecked for any radios and checkboxes
    // about to be appended to the DOM in IE 6/7 (#8060)
    if ( !jQuery.support.appendChecked ) {
      jQuery.grep( getAll( nodes, "input" ), fixDefaultChecked );
    }

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( safe.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 );
          }
        }
      }
    }

tmp = null;

return safe;
  },

cleanData: function( elems, /* internal */ acceptData ) {
    var elem, type, id, data,
      i = 0,
      internalKey = jQuery.expando,
      cache = jQuery.cache,
      deleteExpando = jQuery.support.deleteExpando,
      special = jQuery.event.special;

for ( ; (elem = elems[i]) != null; i++ ) {

if ( acceptData || jQuery.acceptData( elem ) ) {

id = elem[ internalKey ];
        data = id && cache[ id ];

if ( data ) {
          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 );
              }
            }
          }

// Remove cache only if it was not already removed by jQuery.event.remove
          if ( cache[ id ] ) {

delete cache[ id ];

// IE does not allow us to delete expando properties from nodes,
            // nor does it have a removeAttribute function on Document nodes;
            // we must handle all of these cases
            if ( deleteExpando ) {
              delete elem[ internalKey ];

} else if ( typeof elem.removeAttribute !== core_strundefined ) {
              elem.removeAttribute( internalKey );

} else {
              elem[ internalKey ] = null;
            }

core_deletedIds.push( id );
          }
        }
      }
    }
  },

_evalUrl: function( url ) {
    return jQuery.ajax({
      url: url,
      type: "GET",
      dataType: "script",
      async: false,
      global: false,
      "throws": true
    });
  }
});
jQuery.fn.extend({
  wrapAll: function( html ) {
    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
      var 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.firstChild && elem.firstChild.nodeType === 1 ) {
          elem = elem.firstChild;
        }

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();
  }
});
var iframe, getStyles, curCSS,
  ralpha = /alpha$[^)]*$/i,
  ropacity = /opacity\s*=\s*([^)]*)/,
  rposition = /^(top|right|bottom|left)$/,
  // swappable if display is none or starts with table except "table", "table-cell", or "table-caption"
  // see here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
  rdisplayswap = /^(none|table(?!-c[ea]).+)/,
  rmargin = /^margin/,
  rnumsplit = new RegExp( "^(" + core_pnum + ")(.*)$", "i" ),
  rnumnonpx = new RegExp( "^(" + core_pnum + ")(?!px)[a-z%]+$", "i" ),
  rrelNum = new RegExp( "^([+-])=(" + core_pnum + ")", "i" ),
  elemdisplay = { BODY: "block" },

cssShow = { position: "absolute", visibility: "hidden", display: "block" },
  cssNormalTransform = {
    letterSpacing: 0,
    fontWeight: 400
  },

cssExpand = [ "Top", "Right", "Bottom", "Left" ],
  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.charAt(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 isHidden( 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 );
}

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 ] = jQuery._data( 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 ] = jQuery._data( elem, "olddisplay", css_defaultDisplay(elem.nodeName) );
      }
    } else {

if ( !values[ index ] ) {
        hidden = isHidden( elem );

if ( display && display !== "none" || !hidden ) {
          jQuery._data( 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.fn.extend({
  css: function( name, value ) {
    return jQuery.access( this, function( elem, name, value ) {
      var len, styles,
        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();
      }
    });
  }
});

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,
    "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: {
    // normalize float css property
    "float": jQuery.support.cssFloat ? "cssFloat" : "styleFloat"
  },

// 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
    // followed by the unprefixed version
    hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];

// Check if we're setting a value
    if ( value !== undefined ) {
      type = typeof value;

// convert relative number strings (+= 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 NaN and null values aren't set. See: #7116
      if ( value == null || type === "number" && isNaN( value ) ) {
        return;
      }

// If a number was passed in, add 'px' to the (except for certain CSS properties)
      if ( type === "number" && !jQuery.cssNumber[ origName ] ) {
        value += "px";
      }

// Fixes #8908, it can be done more correctly by specifing setters in cssHooks,
      // but it would mean to define eight (for every problematic property) identical functions
      if ( !jQuery.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 ) {

// Wrapped to prevent IE from throwing errors when 'invalid' values are provided
        // Fixes bug #5509
        try {
          style[ name ] = value;
        } catch(e) {}
      }

} 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 num, val, 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 ) );

// gets hook for the prefixed version
    // followed by the unprefixed version
    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 ];
    }

// Return, converting to number 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;
  }
});

// NOTE: we've included the "window" in window.getComputedStyle
// because jsdom on node.js will break without it.
if ( window.getComputedStyle ) {
  getStyles = function( elem ) {
    return window.getComputedStyle( elem, null );
  };

curCSS = function( elem, name, _computed ) {
    var width, minWidth, maxWidth,
      computed = _computed || getStyles( elem ),

// getPropertyValue is only needed for .css('filter') in IE9, see #12537
      ret = computed ? computed.getPropertyValue( name ) || computed[ name ] : undefined,
      style = elem.style;

if ( computed ) {

if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) {
        ret = jQuery.style( elem, name );
      }

// A tribute to the "awesome hack by Dean Edwards"
      // Chrome < 17 and Safari 5.0 uses "computed value" instead of "used value" for margin-right
      // Safari 5.1.7 (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;
  };
} else if ( document.documentElement.currentStyle ) {
  getStyles = function( elem ) {
    return elem.currentStyle;
  };

curCSS = function( elem, name, _computed ) {
    var left, rs, rsLeft,
      computed = _computed || getStyles( elem ),
      ret = computed ? computed[ name ] : undefined,
      style = elem.style;

// Avoid setting ret to empty string here
    // so we don't default to auto
    if ( ret == null && style && style[ name ] ) {
      ret = style[ name ];
    }

// From the awesome hack by Dean Edwards
    // http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-102291

// If we're not dealing with a regular pixel number
    // but a number that has a weird ending, we need to convert it to pixels
    // but not position css attributes, as those are proportional to the parent element instead
    // and we can't measure the parent instead because it might trigger a "stacking dolls" problem
    if ( rnumnonpx.test( ret ) && !rposition.test( name ) ) {

// Remember the original values
      left = style.left;
      rs = elem.runtimeStyle;
      rsLeft = rs && rs.left;

// Put in the new values to get a computed value out
      if ( rsLeft ) {
        rs.left = elem.currentStyle.left;
      }
      style.left = name === "fontSize" ? "1em" : ret;
      ret = style.pixelLeft + "px";

// Revert the changed values
      style.left = left;
      if ( rsLeft ) {
        rs.left = rsLeft;
      }
    }

return ret === "" ? "auto" : ret;
  };
}

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.support.boxSizing && 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;
    }

// we need the check for style in case a browser which returns unreliable values
    // for getComputedStyle silently falls back to the reliable elem.style
    valueIsBorderBox = isBorderBox && ( jQuery.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";
}

// Try to determine the default display value of an element
function css_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'/>")
        .css( "cssText", "display:block !important" )
      ).appendTo( doc.documentElement );

// Always write a new HTML skeleton so Webkit and Firefox don't choke on reuse
      doc = ( iframe[0].contentWindow || iframe[0].contentDocument ).document;
      doc.write("<!doctype html><html><body>");
      doc.close();

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

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

return display;
}

// Called ONLY from within css_defaultDisplay
function actualDisplay( name, doc ) {
  var elem = jQuery( doc.createElement( name ) ).appendTo( doc.body ),
    display = jQuery.css( elem[0], "display" );
  elem.remove();
  return display;
}

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
        // however, it must have a current display style that would benefit from this
        return elem.offsetWidth === 0 && rdisplayswap.test( jQuery.css( elem, "display" ) ) ?
          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.support.boxSizing && jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
          styles
        ) : 0
      );
    }
  };
});

if ( !jQuery.support.opacity ) {
  jQuery.cssHooks.opacity = {
    get: function( elem, computed ) {
      // IE uses filters for opacity
      return ropacity.test( (computed && elem.currentStyle ? elem.currentStyle.filter : elem.style.filter) || "" ) ?
        ( 0.01 * parseFloat( RegExp.$1 ) ) + "" :
        computed ? "1" : "";
    },

set: function( elem, value ) {
      var style = elem.style,
        currentStyle = elem.currentStyle,
        opacity = jQuery.isNumeric( value ) ? "alpha(opacity=" + value * 100 + ")" : "",
        filter = currentStyle && currentStyle.filter || style.filter || "";

// IE has trouble with opacity if it does not have layout
      // Force it by setting the zoom level
      style.zoom = 1;

// if setting opacity to 1, and no other filters exist - attempt to remove filter attribute #6652
      // if value === "", then remove inline opacity #12685
      if ( ( value >= 1 || value === "" ) &&
          jQuery.trim( filter.replace( ralpha, "" ) ) === "" &&
          style.removeAttribute ) {

// Setting style.filter to null, "" & " " still leave "filter:" in the cssText
        // if "filter:" is present at all, clearType is disabled, we want to avoid this
        // style.removeAttribute is IE Only, but so apparently is this code path...
        style.removeAttribute( "filter" );

// if there is no filter style applied in a css rule or unset inline opacity, we are done
        if ( value === "" || currentStyle && !currentStyle.filter ) {
          return;
        }
      }

// otherwise, set new filter values
      style.filter = ralpha.test( filter ) ?
        filter.replace( ralpha, opacity ) :
        filter + " " + opacity;
    }
  };
}

// These hooks cannot be added until DOM ready because the support test
// for it is not run until after DOM ready
jQuery(function() {
  if ( !jQuery.support.reliableMarginRight ) {
    jQuery.cssHooks.marginRight = {
      get: function( elem, computed ) {
        if ( computed ) {
          // WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
          // Work around by temporarily setting element display to inline-block
          return jQuery.swap( elem, { "display": "inline-block" },
            curCSS, [ elem, "marginRight" ] );
        }
      }
    };
  }

// Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
  // getComputedStyle returns percent when specified for top/left/bottom/right
  // rather than make the css module depend on the offset module, we just check for it here
  if ( !jQuery.support.pixelPosition && jQuery.fn.position ) {
    jQuery.each( [ "top", "left" ], function( i, prop ) {
      jQuery.cssHooks[ prop ] = {
        get: 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;
          }
        }
      };
    });
  }

});

if ( jQuery.expr && jQuery.expr.filters ) {
  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.support.reliableHiddenOffsets && ((elem.style && elem.style.display) || jQuery.css( elem, "display" )) === "none");
  };

jQuery.expr.filters.visible = function( elem ) {
    return !jQuery.expr.filters.hidden( elem );
  };
}

// 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;
  }
});
var r20 = /%20/g,
  rbracket = /\[\]$/,
  rCRLF = /\r?\n/g,
  rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,
  rsubmittable = /^(?:input|select|textarea|keygen)/i;

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 || !manipulation_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();
  }
});

//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, "+" );
};

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 );
  }
}
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
  // Document location
  ajaxLocParts,
  ajaxLocation,
  ajax_nonce = jQuery.now(),

// Keep a copy of the old load method
  _load = jQuery.fn.load,

/* 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("*");

// #8138, IE may throw an exception when accessing
// a field from window.location if document.domain has been set
try {
  ajaxLocation = location.href;
} catch( e ) {
  // Use the href attribute of an A element
  // since IE will modify it given document.location
  ajaxLocation = document.createElement( "a" );
  ajaxLocation.href = "";
  ajaxLocation = ajaxLocation.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( core_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 );

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 deep, key,
    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;
}

jQuery.fn.load = function( url, params, callback ) {
  if ( typeof url !== "string" && _load ) {
    return _load.apply( this, arguments );
  }

var selector, response, type,
    self = this,
    off = url.indexOf(" ");

if ( off >= 0 ) {
    selector = url.slice( off, url.length );
    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.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 // Cross-domain detection vars
      parts,
      // Loop variable
      i,
      // URL without anti-cache param
      cacheURL,
      // Response headers as string
      responseHeadersString,
      // timeout handle
      timeoutTimer,

// To know if global events are to be dispatched
      fireGlobals,

transport,
      // Response headers
      responseHeaders,
      // 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 (#5866: IE7 issue with protocol-less urls)
    // 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( core_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
    fireGlobals = 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 += ( ajax_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_=" + ajax_nonce++ ) :

// Otherwise add one to the end
          cacheURL + ( ajax_rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ajax_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 {
        // We extract error from statusText
        // then normalize statusText and status 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
    });
  };
});

/* 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 firstDataType, ct, finalDataType, type,
    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 };
}
// 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 global
jQuery.ajaxPrefilter( "script", function( s ) {
  if ( s.cache === undefined ) {
    s.cache = false;
  }
  if ( s.crossDomain ) {
    s.type = "GET";
    s.global = false;
  }
});

// Bind script tag hack transport
jQuery.ajaxTransport( "script", function(s) {

// This transport only deals with cross domain requests
  if ( s.crossDomain ) {

var script,
      head = document.head || jQuery("head")[0] || document.documentElement;

return {

send: function( _, callback ) {

script = document.createElement("script");

script.async = true;

if ( s.scriptCharset ) {
          script.charset = s.scriptCharset;
        }

script.src = s.url;

// Attach handlers for all browsers
        script.onload = script.onreadystatechange = function( _, isAbort ) {

if ( isAbort || !script.readyState || /loaded|complete/.test( script.readyState ) ) {

// Handle memory leak in IE
            script.onload = script.onreadystatechange = null;

// Remove the script
            if ( script.parentNode ) {
              script.parentNode.removeChild( script );
            }

// Dereference the script
            script = null;

// Callback if not abort
            if ( !isAbort ) {
              callback( 200, "success" );
            }
          }
        };

// Circumvent IE6 bugs with base elements (#2709 and #4378) by prepending
        // Use native DOM manipulation to avoid our domManip AJAX trickery
        head.insertBefore( script, head.firstChild );
      },

abort: function() {
        if ( script ) {
          script.onload( undefined, true );
        }
      }
    };
  }
});
var oldCallbacks = [],
  rjsonp = /(=)\?(?=&|$)|\?\?/;

// Default jsonp settings
jQuery.ajaxSetup({
  jsonp: "callback",
  jsonpCallback: function() {
    var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( ajax_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 += ( ajax_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";
  }
});
var xhrCallbacks, xhrSupported,
  xhrId = 0,
  // #5280: Internet Explorer will keep connections alive if we don't abort on unload
  xhrOnUnloadAbort = window.ActiveXObject && function() {
    // Abort all pending requests
    var key;
    for ( key in xhrCallbacks ) {
      xhrCallbacks[ key ]( undefined, true );
    }
  };

// Functions to create xhrs
function createStandardXHR() {
  try {
    return new window.XMLHttpRequest();
  } catch( e ) {}
}

function createActiveXHR() {
  try {
    return new window.ActiveXObject("Microsoft.XMLHTTP");
  } catch( e ) {}
}

// Create the request object
// (This is still attached to ajaxSettings for backward compatibility)
jQuery.ajaxSettings.xhr = window.ActiveXObject ?
  /* Microsoft failed to properly
   * implement the XMLHttpRequest in IE7 (can't request local files),
   * so we use the ActiveXObject when it is available
   * Additionally XMLHttpRequest can be disabled in IE7/IE8 so
   * we need a fallback.
   */
  function() {
    return !this.isLocal && createStandardXHR() || createActiveXHR();
  } :
  // For all other browsers, use the standard XMLHttpRequest object
  createStandardXHR;

// Determine support properties
xhrSupported = jQuery.ajaxSettings.xhr();
jQuery.support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
xhrSupported = jQuery.support.ajax = !!xhrSupported;

// Create transport if the browser can provide an xhr
if ( xhrSupported ) {

jQuery.ajaxTransport(function( s ) {
    // Cross domain only allowed if supported through XMLHttpRequest
    if ( !s.crossDomain || jQuery.support.cors ) {

var callback;

return {
        send: function( headers, complete ) {

// Get a new xhr
          var handle, i,
            xhr = s.xhr();

// Open the socket
          // Passing null username, generates a login popup on Opera (#2865)
          if ( s.username ) {
            xhr.open( s.type, s.url, s.async, s.username, s.password );
          } else {
            xhr.open( s.type, s.url, s.async );
          }

// Apply custom fields if provided
          if ( s.xhrFields ) {
            for ( i in s.xhrFields ) {
              xhr[ i ] = s.xhrFields[ i ];
            }
          }

// Override mime type if needed
          if ( s.mimeType && xhr.overrideMimeType ) {
            xhr.overrideMimeType( s.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 ( !s.crossDomain && !headers["X-Requested-With"] ) {
            headers["X-Requested-With"] = "XMLHttpRequest";
          }

// Need an extra try/catch for cross domain requests in Firefox 3
          try {
            for ( i in headers ) {
              xhr.setRequestHeader( i, headers[ i ] );
            }
          } catch( err ) {}

// Do send the request
          // This may raise an exception which is actually
          // handled in jQuery.ajax (so no try/catch here)
          xhr.send( ( s.hasContent && s.data ) || null );

// Listener
          callback = function( _, isAbort ) {
            var status, responseHeaders, statusText, responses;

// Firefox throws exceptions when accessing properties
            // of an xhr when a network error occurred
            // http://helpful.knobs-dials.com/index.php/Component_returned_failure_code:_0x80040111_(NS_ERROR_NOT_AVAILABLE)
            try {

// Was never called and is aborted or complete
              if ( callback && ( isAbort || xhr.readyState === 4 ) ) {

// Only called once
                callback = undefined;

// Do not keep as active anymore
                if ( handle ) {
                  xhr.onreadystatechange = jQuery.noop;
                  if ( xhrOnUnloadAbort ) {
                    delete xhrCallbacks[ handle ];
                  }
                }

// If it's an abort
                if ( isAbort ) {
                  // Abort it manually if needed
                  if ( xhr.readyState !== 4 ) {
                    xhr.abort();
                  }
                } else {
                  responses = {};
                  status = xhr.status;
                  responseHeaders = xhr.getAllResponseHeaders();

// When requesting binary data, IE6-9 will throw an exception
                  // on any attempt to access responseText (#11426)
                  if ( typeof xhr.responseText === "string" ) {
                    responses.text = xhr.responseText;
                  }

// Firefox throws an exception when accessing
                  // statusText for faulty cross-domain requests
                  try {
                    statusText = xhr.statusText;
                  } catch( e ) {
                    // We normalize with Webkit giving an empty statusText
                    statusText = "";
                  }

// Filter status for non standard behaviors

// If the request is local and we have data: assume a success
                  // (success with no data won't get notified, that's the best we
                  // can do given current implementations)
                  if ( !status && s.isLocal && !s.crossDomain ) {
                    status = responses.text ? 200 : 404;
                  // IE - #1450: sometimes returns 1223 when it should be 204
                  } else if ( status === 1223 ) {
                    status = 204;
                  }
                }
              }
            } catch( firefoxAccessException ) {
              if ( !isAbort ) {
                complete( -1, firefoxAccessException );
              }
            }

// Call complete if needed
            if ( responses ) {
              complete( status, statusText, responses, responseHeaders );
            }
          };

if ( !s.async ) {
            // if we're in sync mode we fire the callback
            callback();
          } else if ( xhr.readyState === 4 ) {
            // (IE6 & IE7) if it's in cache and has been
            // retrieved directly we need to fire the callback
            setTimeout( callback );
          } else {
            handle = ++xhrId;
            if ( xhrOnUnloadAbort ) {
              // Create the active xhrs callbacks list if needed
              // and attach the unload handler
              if ( !xhrCallbacks ) {
                xhrCallbacks = {};
                jQuery( window ).unload( xhrOnUnloadAbort );
              }
              // Add to list of active xhrs callbacks
              xhrCallbacks[ handle ] = callback;
            }
            xhr.onreadystatechange = callback;
          }
        },

abort: function() {
          if ( callback ) {
            callback( undefined, true );
          }
        }
      };
    }
  });
}
var fxNow, timerId,
  rfxtypes = /^(?:toggle|show|hide)$/,
  rfxnum = new RegExp( "^(?:([+-])=|)(" + core_pnum + ")([a-z%]*)$", "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 a string for doubling factor 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()
        // And breaking 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() );
}

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 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 ),
        // 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 );
}

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 wont overwrite keys already present.
      // also - reusing 'index' from above 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;
    }
  }
}

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 );
    }
  }
});

function defaultPrefilter( elem, props, opts ) {
  /* jshint validthis: true */
  var prop, value, toggle, tween, hooks, oldfire,
    anim = this,
    orig = {},
    style = elem.style,
    hidden = elem.nodeType && isHidden( elem ),
    dataShow = jQuery._data( 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() {
      // doing this makes sure that the complete handler will be 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 IE does 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
    if ( jQuery.css( elem, "display" ) === "inline" &&
        jQuery.css( elem, "float" ) === "none" ) {

// inline-level elements accept inline-block;
      // block-level elements need to be inline with layout
      if ( !jQuery.support.inlineBlockNeedsLayout || css_defaultDisplay( elem.nodeName ) === "inline" ) {
        style.display = "inline-block";

} else {
        style.zoom = 1;
      }
    }
  }

if ( opts.overflow ) {
    style.overflow = "hidden";
    if ( !jQuery.support.shrinkWrapBlocks ) {
      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" ) ) {
        continue;
      }
      orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop );
    }
  }

if ( !jQuery.isEmptyObject( orig ) ) {
    if ( dataShow ) {
      if ( "hidden" in dataShow ) {
        hidden = dataShow.hidden;
      }
    } else {
      dataShow = jQuery._data( 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;
      jQuery._removeData( 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;
        }
      }
    }
  }
}

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
      // so, 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 its
      // 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: IE <=9
// 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.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 );
  };
});

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 || jQuery._data( 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 = jQuery._data( 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 = jQuery._data( 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;
    });
  }
});

// Generate parameters to create a standard animation
function genFx( type, includeWidth ) {
  var which,
    attrs = { height: type },
    i = 0;

// if we include width, step value is 1 to do all cssExpand values,
  // if we don't include width, 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;
}

// 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.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.easing = {
  linear: function( p ) {
    return p;
  },
  swing: function( p ) {
    return 0.5 - Math.cos( p*Math.PI ) / 2;
  }
};

jQuery.timers = [];
jQuery.fx = Tween.prototype.init;
jQuery.fx.tick = function() {
  var timer,
    timers = jQuery.timers,
    i = 0;

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 ) {
  if ( timer() && jQuery.timers.push( timer ) ) {
    jQuery.fx.start();
  }
};

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
};

// Back Compat <1.8 extension point
jQuery.fx.step = {};

if ( jQuery.expr && jQuery.expr.filters ) {
  jQuery.expr.filters.animated = function( elem ) {
    return jQuery.grep(jQuery.timers, function( fn ) {
      return elem === fn.elem;
    }).length;
  };
}
jQuery.fn.offset = function( options ) {
  if ( arguments.length ) {
    return options === undefined ?
      this :
      this.each(function( i ) {
        jQuery.offset.setOffset( this, options, i );
      });
  }

var docElem, win,
    box = { top: 0, left: 0 },
    elem = this[ 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;
  }

// If we don't have gBCR, just use 0,0 rather than error
  // BlackBerry 5, iOS 3 (original iPhone)
  if ( typeof elem.getBoundingClientRect !== core_strundefined ) {
    box = elem.getBoundingClientRect();
  }
  win = getWindow( doc );
  return {
    top: box.top  + ( win.pageYOffset || docElem.scrollTop )  - ( docElem.clientTop  || 0 ),
    left: box.left + ( win.pageXOffset || docElem.scrollLeft ) - ( docElem.clientLeft || 0 )
  };
};

jQuery.offset = {

setOffset: function( elem, options, i ) {
    var position = jQuery.css( elem, "position" );

// set position first, in-case top/left are set even on static elem
    if ( position === "static" ) {
      elem.style.position = "relative";
    }

var curElem = jQuery( elem ),
      curOffset = curElem.offset(),
      curCSSTop = jQuery.css( elem, "top" ),
      curCSSLeft = jQuery.css( elem, "left" ),
      calculatePosition = ( position === "absolute" || position === "fixed" ) && jQuery.inArray("auto", [curCSSTop, curCSSLeft]) > -1,
      props = {}, curPosition = {}, curTop, curLeft;

// 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({

position: function() {
    if ( !this[ 0 ] ) {
      return;
    }

var offsetParent, offset,
      parentOffset = { top: 0, left: 0 },
      elem = this[ 0 ];

// fixed elements are offset from window (parentOffset = {top:0, left: 0}, because it is it's only offset parent
    if ( jQuery.css( elem, "position" ) === "fixed" ) {
      // we assume that getBoundingClientRect is available 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
    // note: when an element has margin: auto the offsetLeft and marginLeft
    // are the same in Safari causing offset.left to incorrectly be 0
    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 = /Y/.test( prop );

jQuery.fn[ method ] = function( val ) {
    return jQuery.access( this, function( elem, method, val ) {
      var win = getWindow( elem );

if ( val === undefined ) {
        return win ? (prop in win) ? win[ prop ] :
          win.document.documentElement[ method ] :
          elem[ method ];
      }

if ( win ) {
        win.scrollTo(
          !top ? val : jQuery( win ).scrollLeft(),
          top ? val : jQuery( win ).scrollTop()
        );

} else {
        elem[ method ] = val;
      }
    }, method, val, arguments.length, null );
  };
});

function getWindow( elem ) {
  return jQuery.isWindow( elem ) ?
    elem :
    elem.nodeType === 9 ?
      elem.defaultView || elem.parentWindow :
      false;
}
// 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 jQuery.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
          // unfortunately, this causes bug #3838 in IE6/8 only, but there is currently no good, small way to fix it.
          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 );
    };
  });
});
// Limit scope pollution from any deprecated API
// (function() {

// The number of elements contained in the matched element set
jQuery.fn.size = function() {
  return this.length;
};

jQuery.fn.andSelf = jQuery.fn.addBack;

// })();
if ( typeof module === "object" && module && typeof module.exports === "object" ) {
  // Expose jQuery as module.exports in loaders that implement the Node
  // module pattern (including browserify). Do not create the global, since
  // the user will be storing it themselves locally, and globals are frowned
  // upon in the Node module world.
  module.exports = jQuery;
} else {
  // Otherwise expose jQuery to the global object as usual
  window.jQuery = window.$ = jQuery;

// 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.
  if ( typeof define === "function" && define.amd ) {
    define( "jquery", [], function () { return jQuery; } );
  }
}

})( window );

CodeMirror Accessibility

Analysis of Current Functionality

Possible Solution

Implementation Considerations

Performance Considerations

Demos

CodeMirror With Accessibility Fix direct link

CodeMirror Original direct link

Normal Textarea direct link