}

return elems.length === 1 ?
jQuery.find.matchesSelector(elems[0], expr) ? [ elems[0] ] : [] :
jQuery.find.matches(expr, elems);
},

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, keep ) {

// Can't pass null or undefined to indexOf in Firefox 4
// Set to 0 to skip string check
qualifier = qualifier || 0;

if ( jQuery.isFunction( qualifier ) ) {
return jQuery.grep(elements, function( elem, i ) {
var retVal = !!qualifier.call( elem, i, elem );
return retVal === keep;
});

} else if ( qualifier.nodeType ) {
return jQuery.grep(elements, function( elem ) {
return ( elem === qualifier ) === keep;
});

} else if ( typeof qualifier === "string" ) {
var filtered = jQuery.grep(elements, function( elem ) {
return elem.nodeType === 1;
});

if ( isSimple.test( qualifier ) ) {
return jQuery.filter(qualifier, filtered, !keep);
} else {
qualifier = jQuery.filter( qualifier, filtered );
}
}

return jQuery.grep(elements, function( elem ) {
return ( jQuery.inArray( elem, qualifier ) >= 0 ) === keep;
});
}
function createSafeFragment( document ) {
var list = nodeNames.split( "|" ),
safeFrag = document.createDocumentFragment();

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

var nodeNames = "abbr|article|aside|audio|bdi|canvas|data|datalist|details|figcaption|figure|footer|" +
"header|hgroup|mark|meter|nav|output|progress|section|summary|time|video",
rinlinejQuery = / jQuery\d+="(?:null|\d+)"/g,
rnoshimcache = new RegExp("<(?:" + nodeNames + ")[\\s/>]", "i"),
rleadingWhitespace = /^\s+/,
rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:]+)[^>]*)\/>/gi,
rtagName = /<([\w:]+)/,
rtbody = /<tbody/i,
rhtml = /<|&#?\w+;/,
rnoInnerhtml = /<(?:script|style|link)/i,
manipulation_rcheckableType = /^(?:checkbox|radio)$/i,
// checked="checked" or checked
rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
rscriptType = /^$|\/(?:java|ecma)script/i,
rscriptTypeMasked = /^true\/(.*)/,
rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g,

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

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();
},

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

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

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

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

// keepData is for internal use only--do not document
remove: function( selector, keepData ) {