/*!

* jQuery JavaScript Library v3.5.1

* https://jquery.com/

*

* Includes Sizzle.js

* https://sizzlejs.com/

*

* Copyright JS Foundation and other contributors

* Released under the MIT license

* https://jquery.org/license

*

* Date: 2020-05-04T22:49Z

*/

( function( global, factory ) {

"use strict";

if ( typeof module === "object" && typeof module.exports === "object" ) {

// For CommonJS and CommonJS-like environments where a proper `window`

// is present, execute the factory and get jQuery.

// For environments that do not have a `window` with a `document`

// (such as Node.js), expose a factory as module.exports.

// This accentuates the need for the creation of a real `window`.

// e.g. var jQuery = require("jquery")(window);

// See ticket #14549 for more info.

module.exports = global.document ?

factory( global, true ) :

function( w ) {

if ( !w.document ) {

throw new Error( "jQuery requires a window with a document" );

}

return factory( w );

};

} else {

factory( global );

}

// Pass this if window is not defined yet

} )( typeof window !== "undefined" ? window : this, function( window, noGlobal ) {

// Edge <= 12 - 13+, Firefox <=18 - 45+, IE 10 - 11, Safari 5.1 - 9+, iOS 6 - 9.1

// throw exceptions when non-strict code (e.g., ASP.NET 4.5) accesses strict mode

// arguments.callee.caller (trac-13335). But as of jQuery 3.0 (2016), strict mode should be common

// enough that all such attempts are guarded in a try block.

"use strict";

var arr = [];

var getProto = Object.getPrototypeOf;

var slice = arr.slice;

var flat = arr.flat ? function( array ) {

return arr.flat.call( array );

} : function( array ) {

return arr.concat.apply( [], array );

};

var push = arr.push;

var indexOf = arr.indexOf;

var class2type = {};

var toString = class2type.toString;

var hasOwn = class2type.hasOwnProperty;

var fnToString = hasOwn.toString;

var ObjectFunctionString = fnToString.call( Object );

var support = {};

var isFunction = function isFunction( obj ) {

// Support: Chrome <=57, Firefox <=52

// In some browsers, typeof returns "function" for HTML <object> elements

// (i.e., `typeof document.createElement( "object" ) === "function"`).

// We don't want to classify *any* DOM node as a function.

return typeof obj === "function" && typeof obj.nodeType !== "number";

};

var isWindow = function isWindow( obj ) {

return obj != null && obj === obj.window;

};

var document = window.document;

var preservedScriptAttributes = {

type: true,

src: true,

nonce: true,

noModule: true

};

function DOMEval( code, node, doc ) {

doc = doc || document;

var i, val,

script = doc.createElement( "script" );

script.text = code;

if ( node ) {

for ( i in preservedScriptAttributes ) {

// Support: Firefox 64+, Edge 18+

// Some browsers don't support the "nonce" property on scripts.

// On the other hand, just using `getAttribute` is not enough as

// the `nonce` attribute is reset to an empty string whenever it

// becomes browsing-context connected.

// See https://github.com/whatwg/html/issues/2369

// See https://html.spec.whatwg.org/#nonce-attributes

// The `node.getAttribute` check was added for the sake of

// `jQuery.globalEval` so that it can fake a nonce-containing node

// via an object.

val = node[ i ] || node.getAttribute && node.getAttribute( i );

if ( val ) {

script.setAttribute( i, val );

}

}

}

doc.head.appendChild( script ).parentNode.removeChild( script );

}

function toType( obj ) {

if ( obj == null ) {

return obj + "";

}

// Support: Android <=2.3 only (functionish RegExp)

return typeof obj === "object" || typeof obj === "function" ?

class2type[ toString.call( obj ) ] || "object" :

typeof obj;

}

/* global Symbol */

// Defining this global in .eslintrc.json would create a danger of using the global

// unguarded in another place, it seems safer to define global only for this module

var

version = "3.5.1",

// Define a local copy of jQuery

jQuery = function( selector, context ) {

// The jQuery object is actually just the init constructor 'enhanced'

// Need init if jQuery is called (just allow error to be thrown if not included)

return new jQuery.fn.init( selector, context );

};

jQuery.fn = jQuery.prototype = {

// The current version of jQuery being used

jquery: version,

constructor: jQuery,

// The default length of a jQuery object is 0

length: 0,

toArray: function() {

return slice.call( this );

},

// Get the Nth element in the matched element set OR

// Get the whole matched element set as a clean array

get: function( num ) {

// Return all the elements in a clean array

if ( num == null ) {

return slice.call( this );

}

// Return just the one element from the set

return num < 0 ? this[ num + this.length ] : 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;

// Return the newly-formed element set

return ret;

},

// Execute a callback for every element in the matched set.

each: function( callback ) {

return jQuery.each( this, callback );

},

map: function( callback ) {

return this.pushStack( jQuery.map( this, function( elem, i ) {

return callback.call( elem, i, elem );

} ) );

},

slice: function() {

return this.pushStack( slice.apply( this, arguments ) );

},

first: function() {

return this.eq( 0 );

},

last: function() {

return this.eq( -1 );

},

even: function() {

return this.pushStack( jQuery.grep( this, function( _elem, i ) {

return ( i + 1 ) % 2;

} ) );

},

odd: function() {

return this.pushStack( jQuery.grep( this, function( _elem, i ) {

return i % 2;

} ) );

},

eq: function( i ) {

var len = this.length,

j = +i + ( i < 0 ? len : 0 );

return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] );

},

end: function() {

return this.prevObject || this.constructor();

},

// For internal use only.

// Behaves like an Array's method, not like a jQuery method.

push: push,

sort: arr.sort,

splice: arr.splice

};

jQuery.extend = jQuery.fn.extend = function() {

var options, name, src, copy, copyIsArray, clone,

target = arguments[ 0 ] || {},

i = 1,

length = arguments.length,

deep = false;

// Handle a deep copy situation

if ( typeof target === "boolean" ) {

deep = target;

// Skip the boolean and the target

target = arguments[ i ] || {};

i++;

}

// Handle case when target is a string or something (possible in deep copy)

if ( typeof target !== "object" && !isFunction( target ) ) {

target = {};

}

// Extend jQuery itself if only one argument is passed

if ( i === length ) {

target = this;

i--;

}

for ( ; i < length; i++ ) {

// Only deal with non-null/undefined values

if ( ( options = arguments[ i ] ) != null ) {

// Extend the base object

for ( name in options ) {

copy = options[ name ];

// Prevent Object.prototype pollution

// Prevent never-ending loop

if ( name === "__proto__" || target === copy ) {

continue;

}

// Recurse if we're merging plain objects or arrays

if ( deep && copy && ( jQuery.isPlainObject( copy ) ||

( copyIsArray = Array.isArray( copy ) ) ) ) {

src = target[ name ];

// Ensure proper type for the source value

if ( copyIsArray && !Array.isArray( src ) ) {

clone = [];

} else if ( !copyIsArray && !jQuery.isPlainObject( src ) ) {

clone = {};

} else {

clone = src;

}

copyIsArray = false;

// Never move original objects, clone them

target[ name ] = jQuery.extend( deep, clone, copy );

// Don't bring in undefined values

} else if ( copy !== undefined ) {

target[ name ] = copy;

}

}

}

}

// Return the modified object

return target;

};

jQuery.extend( {

// Unique for each copy of jQuery on the page

expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ),

// Assume jQuery is ready without the ready module

isReady: true,

error: function( msg ) {

throw new Error( msg );

},

noop: function() {},

isPlainObject: function( obj ) {

var proto, Ctor;

// Detect obvious negatives

// Use toString instead of jQuery.type to catch host objects

if ( !obj || toString.call( obj ) !== "[object Object]" ) {

return false;

}

proto = getProto( obj );

// Objects with no prototype (e.g., `Object.create( null )`) are plain

if ( !proto ) {

return true;

}

// Objects with prototype are plain iff they were constructed by a global Object function

Ctor = hasOwn.call( proto, "constructor" ) && proto.constructor;

return typeof Ctor === "function" && fnToString.call( Ctor ) === ObjectFunctionString;

},

isEmptyObject: function( obj ) {

var name;

for ( name in obj ) {

return false;

}

return true;

},

// Evaluates a script in a provided context; falls back to the global one

// if not specified.

globalEval: function( code, options, doc ) {

DOMEval( code, { nonce: options && options.nonce }, doc );

},

each: function( obj, callback ) {

var length, i = 0;

if ( isArrayLike( obj ) ) {

length = obj.length;

for ( ; i < length; i++ ) {

if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {

break;

}

}

} else {

for ( i in obj ) {

if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {

break;

}

}

}

return obj;

},

// results is for internal usage only

makeArray: function( arr, results ) {

var ret = results || [];

if ( arr != null ) {

if ( isArrayLike( Object( arr ) ) ) {

jQuery.merge( ret,

typeof arr === "string" ?

[ arr ] : arr

);

} else {

push.call( ret, arr );

}

}

return ret;

},

inArray: function( elem, arr, i ) {

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

},

// Support: Android <=4.0 only, PhantomJS 1 only

// push.apply(_, arraylike) throws on ancient WebKit

merge: function( first, second ) {

var len = +second.length,

j = 0,

i = first.length;

for ( ; j < len; j++ ) {

first[ i++ ] = second[ j ];

}

first.length = i;

return first;

},

grep: function( elems, callback, invert ) {

var callbackInverse,

matches = [],

i = 0,

length = elems.length,

callbackExpect = !invert;

// Go through the array, only saving the items

// that pass the validator function

for ( ; i < length; i++ ) {

callbackInverse = !callback( elems[ i ], i );

if ( callbackInverse !== callbackExpect ) {

matches.push( elems[ i ] );

}

}

return matches;

},

// arg is for internal usage only

map: function( elems, callback, arg ) {

var length, value,

i = 0,

ret = [];

// Go through the array, translating each of the items to their new values

if ( isArrayLike( elems ) ) {

length = elems.length;

for ( ; i < length; i++ ) {

value = callback( elems[ i ], i, arg );

if ( value != null ) {

ret.push( value );

}

}

// Go through every key on the object,

} else {

for ( i in elems ) {

value = callback( elems[ i ], i, arg );

if ( value != null ) {

ret.push( value );

}

}

}

// Flatten any nested arrays

return flat( ret );

},

// A global GUID counter for objects

guid: 1,

// jQuery.support is not used in Core but other projects attach their

// properties to it so it needs to exist.

support: support

} );

if ( typeof Symbol === "function" ) {

jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ];

}

// Populate the class2type map

jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ),

function( _i, name ) {

class2type[ "[object " + name + "]" ] = name.toLowerCase();

} );

function isArrayLike( obj ) {

// Support: real iOS 8.2 only (not reproducible in simulator)

// `in` check used to prevent JIT error (gh-2145)

// hasOwn isn't used here due to false negatives

// regarding Nodelist length in IE

var length = !!obj && "length" in obj && obj.length,

type = toType( obj );

if ( isFunction( obj ) || isWindow( obj ) ) {

return false;

}

return type === "array" || length === 0 ||

typeof length === "number" && length > 0 && ( length - 1 ) in obj;

}

var Sizzle =

/*!

* Sizzle CSS Selector Engine v2.3.5

* https://sizzlejs.com/

*

* Copyright JS Foundation and other contributors

* Released under the MIT license

* https://js.foundation/

*

* Date: 2020-03-14

*/

( function( window ) {

var i,

support,

Expr,

getText,

isXML,

tokenize,

compile,

select,

outermostContext,

sortInput,

hasDuplicate,

// Local document vars

setDocument,

document,

docElem,

documentIsHTML,

rbuggyQSA,

rbuggyMatches,

matches,

contains,

// Instance-specific data

expando = "sizzle" + 1 * new Date(),

preferredDoc = window.document,

dirruns = 0,

done = 0,

classCache = createCache(),

tokenCache = createCache(),

compilerCache = createCache(),

nonnativeSelectorCache = createCache(),

sortOrder = function( a, b ) {

if ( a === b ) {

hasDuplicate = true;

}

return 0;

},

// Instance methods

hasOwn = ( {} ).hasOwnProperty,

arr = [],

pop = arr.pop,

pushNative = arr.push,

push = arr.push,

slice = arr.slice,

// Use a stripped-down indexOf as it's faster than native

// https://jsperf.com/thor-indexof-vs-for/5

indexOf = function( list, elem ) {

var i = 0,

len = list.length;

for ( ; i < len; i++ ) {

if ( list[ i ] === elem ) {

return i;

}

}

return -1;

},

booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|" +

"ismap|loop|multiple|open|readonly|required|scoped",

// Regular expressions

// http://www.w3.org/TR/css3-selectors/#whitespace

whitespace = "[\\x20\\t\\r\\n\\f]",

// https://www.w3.org/TR/css-syntax-3/#ident-token-diagram

identifier = "(?:\\\\[\\da-fA-F]{1,6}" + whitespace +

"?|\\\\[^\\r\\n\\f]|[\\w-]|[^\0-\\x7f])+",

// Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors

attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace +

// Operator (capture 2)

"*([*^$|!~]?=)" + whitespace +

// "Attribute values must be CSS identifiers [capture 5]

// or strings [capture 3 or capture 4]"

"*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" +

whitespace + "*\\]",

pseudos = ":(" + identifier + ")(?:\\((" +

// To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:

// 1. quoted (capture 3; capture 4 or capture 5)

"('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +

// 2. simple (capture 6)

"((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +

// 3. anything else (capture 2)

".*" +

")\\)|)",

// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter

rwhitespace = new RegExp( whitespace + "+", "g" ),

rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" +

whitespace + "+$", "g" ),

rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),

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

"*" ),

rdescend = new RegExp( whitespace + "|>" ),

rpseudo = new RegExp( pseudos ),

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

matchExpr = {

"ID": new RegExp( "^#(" + identifier + ")" ),

"CLASS": new RegExp( "^\\.(" + identifier + ")" ),

"TAG": new RegExp( "^(" + identifier + "|[*])" ),

"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" )

},

rhtml = /HTML$/i,

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

rheader = /^h\d$/i,

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

// Easily-parseable/retrievable ID or TAG or CLASS selectors

rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,

rsibling = /[+~]/,

// CSS escapes

// http://www.w3.org/TR/CSS21/syndata.html#escaped-characters

runescape = new RegExp( "\\\\[\\da-fA-F]{1,6}" + whitespace + "?|\\\\([^\\r\\n\\f])", "g" ),

funescape = function( escape, nonHex ) {

var high = "0x" + escape.slice( 1 ) - 0x10000;

return nonHex ?

// Strip the backslash prefix from a non-hex escape sequence

nonHex :

// Replace a hexadecimal escape sequence with the encoded Unicode code point

// Support: IE <=11+

// For values outside the Basic Multilingual Plane (BMP), manually construct a

// surrogate pair

high < 0 ?

String.fromCharCode( high + 0x10000 ) :

String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );

},

// CSS string/identifier serialization

// https://drafts.csswg.org/cssom/#common-serializing-idioms

rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g,

fcssescape = function( ch, asCodePoint ) {

if ( asCodePoint ) {

// U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER

if ( ch === "\0" ) {

return "\uFFFD";

}

// Control characters and (dependent upon position) numbers get escaped as code points

return ch.slice( 0, -1 ) + "\\" +

ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " ";

}

// Other potentially-special ASCII characters get backslash-escaped

return "\\" + ch;

},

// Used for iframes

// See setDocument()

// Removing the function wrapper causes a "Permission Denied"

// error in IE

unloadHandler = function() {

setDocument();

},

inDisabledFieldset = addCombinator(

function( elem ) {

return elem.disabled === true && elem.nodeName.toLowerCase() === "fieldset";

},

{ dir: "parentNode", next: "legend" }

);

// Optimize for push.apply( _, NodeList )

try {

push.apply(

( arr = slice.call( preferredDoc.childNodes ) ),

preferredDoc.childNodes

);

// Support: Android<4.0

// Detect silently failing push.apply

// eslint-disable-next-line no-unused-expressions

arr[ preferredDoc.childNodes.length ].nodeType;

} catch ( e ) {

push = { apply: arr.length ?

// Leverage slice if possible

function( target, els ) {

pushNative.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 m, i, elem, nid, match, groups, newSelector,

newContext = context && context.ownerDocument,

// nodeType defaults to 9, since context defaults to document

nodeType = context ? context.nodeType : 9;

results = results || [];

// Return early from calls with invalid selector or context

if ( typeof selector !== "string" || !selector ||

nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {

return results;

}

// Try to shortcut find operations (as opposed to filters) in HTML documents

if ( !seed ) {

setDocument( context );

context = context || document;

if ( documentIsHTML ) {

// If the selector is sufficiently simple, try using a "get*By*" DOM method

// (excepting DocumentFragment context, where the methods don't exist)

if ( nodeType !== 11 && ( match = rquickExpr.exec( selector ) ) ) {

// ID selector

if ( ( m = match[ 1 ] ) ) {

// Document context

if ( nodeType === 9 ) {

if ( ( elem = context.getElementById( m ) ) ) {

// Support: IE, Opera, Webkit

// TODO: identify versions

// getElementById can match elements by name instead of ID

if ( elem.id === m ) {

results.push( elem );

return results;

}

} else {

return results;

}

// Element context

} else {

// Support: IE, Opera, Webkit

// TODO: identify versions

// getElementById can match elements by name instead of ID

if ( newContext && ( elem = newContext.getElementById( m ) ) &&

contains( context, elem ) &&

elem.id === m ) {

results.push( elem );

return results;

}

}

// Type selector

} else if ( match[ 2 ] ) {

push.apply( results, context.getElementsByTagName( selector ) );

return results;

// Class selector

} else if ( ( m = match[ 3 ] ) && support.getElementsByClassName &&

context.getElementsByClassName ) {

push.apply( results, context.getElementsByClassName( m ) );

return results;

}

}

// Take advantage of querySelectorAll

if ( support.qsa &&

!nonnativeSelectorCache[ selector + " " ] &&

( !rbuggyQSA || !rbuggyQSA.test( selector ) ) &&

// Support: IE 8 only

// Exclude object elements

( nodeType !== 1 || context.nodeName.toLowerCase() !== "object" ) ) {

newSelector = selector;

newContext = context;

// qSA considers elements outside a scoping root when evaluating child or

// descendant combinators, which is not what we want.

// In such cases, we work around the behavior by prefixing every selector in the

// list with an ID selector referencing the scope context.

// The technique has to be used as well when a leading combinator is used

// as such selectors are not recognized by querySelectorAll.

// Thanks to Andrew Dupont for this technique.

if ( nodeType === 1 &&

( rdescend.test( selector ) || rcombinators.test( selector ) ) ) {

// Expand context for sibling selectors

newContext = rsibling.test( selector ) && testContext( context.parentNode ) ||

context;

// We can use :scope instead of the ID hack if the browser

// supports it & if we're not changing the context.

if ( newContext !== context || !support.scope ) {

// Capture the context ID, setting it first if necessary

if ( ( nid = context.getAttribute( "id" ) ) ) {

nid = nid.replace( rcssescape, fcssescape );

} else {

context.setAttribute( "id", ( nid = expando ) );

}

}

// Prefix every selector in the list

groups = tokenize( selector );

i = groups.length;

while ( i-- ) {

groups[ i ] = ( nid ? "#" + nid : ":scope" ) + " " +

toSelector( groups[ i ] );

}

newSelector = groups.join( "," );

}

try {

push.apply( results,

newContext.querySelectorAll( newSelector )

);

return results;

} catch ( qsaError ) {

nonnativeSelectorCache( selector, true );

} finally {

if ( nid === expando ) {

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 element and returns a boolean result

*/

function assert( fn ) {

var el = document.createElement( "fieldset" );

try {

return !!fn( el );

} catch ( e ) {

return false;

} finally {

// Remove from its parent by default

if ( el.parentNode ) {

el.parentNode.removeChild( el );

}

// release memory in IE

el = 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 = arr.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 &&

a.sourceIndex - b.sourceIndex;

// 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;