+function root( elem, cur ) {
+ return jQuery.nodeName(elem, "table") ?
+ (elem.getElementsByTagName("tbody")[0] ||
+ elem.appendChild(elem.ownerDocument.createElement("tbody"))) :
+ elem;
+}
+
+function cloneCopyEvent( src, dest ) {
+
+ if ( dest.nodeType !== 1 || !jQuery.hasData( src ) ) {
+ return;
+ }
+
+ var internalKey = jQuery.expando,
+ oldData = jQuery.data( src ),
+ curData = jQuery.data( dest, oldData );
+
+ // Switch to use the internal data object, if it exists, for the next
+ // stage of data copying
+ if ( (oldData = oldData[ internalKey ]) ) {
+ var events = oldData.events;
+ curData = curData[ internalKey ] = jQuery.extend({}, oldData);
+
+ if ( events ) {
+ delete curData.handle;
+ curData.events = {};
+
+ for ( var type in events ) {
+ for ( var i = 0, l = events[ type ].length; i < l; i++ ) {
+ jQuery.event.add( dest, type, events[ type ][ i ], events[ type ][ i ].data );
+ }
+ }
+ }
+ }
+}
+
+function cloneFixAttributes(src, dest) {
+ // We do not need to do anything for non-Elements
+ if ( dest.nodeType !== 1 ) {
+ return;
+ }
+
+ var nodeName = dest.nodeName.toLowerCase();
+
+ // clearAttributes removes the attributes, which we don't want,
+ // but also removes the attachEvent events, which we *do* want
+ dest.clearAttributes();
+
+ // mergeAttributes, in contrast, only merges back on the
+ // original attributes, not the events
+ dest.mergeAttributes(src);
+
+ // IE6-8 fail to clone children inside object elements that use
+ // the proprietary classid attribute value (rather than the type
+ // attribute) to identify the type of content to display
+ if ( nodeName === "object" ) {
+ dest.outerHTML = src.outerHTML;
+
+ } else if ( nodeName === "input" && (src.type === "checkbox" || src.type === "radio") ) {
+ // 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
+ if ( src.checked ) {
+ 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.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;
+ }
+
+ // Event data gets referenced instead of copied if the expando
+ // gets copied too
+ dest.removeAttribute( jQuery.expando );
+}
+
+jQuery.buildFragment = function( args, nodes, scripts ) {
+ var fragment, cacheable, cacheresults,
+ doc = (nodes && nodes[0] ? nodes[0].ownerDocument || nodes[0] : document);
+
+ // Only cache "small" (1/2 KB) HTML strings that are associated with the main document
+ // Cloning options loses the selected state, so don't cache them
+ // IE 6 doesn't like it when you put <object> or <embed> elements in a fragment
+ // Also, WebKit does not clone 'checked' attributes on cloneNode, so don't cache
+ if ( args.length === 1 && typeof args[0] === "string" && args[0].length < 512 && doc === document &&
+ args[0].charAt(0) === "<" && !rnocache.test( args[0] ) && (jQuery.support.checkClone || !rchecked.test( args[0] )) ) {
+
+ cacheable = true;
+ cacheresults = jQuery.fragments[ args[0] ];
+ if ( cacheresults ) {
+ if ( cacheresults !== 1 ) {
+ fragment = cacheresults;
+ }
+ }
+ }
+
+ if ( !fragment ) {
+ fragment = doc.createDocumentFragment();
+ jQuery.clean( args, doc, fragment, scripts );
+ }
+
+ if ( cacheable ) {
+ jQuery.fragments[ args[0] ] = cacheresults ? fragment : 1;
+ }
+
+ return { fragment: fragment, cacheable: cacheable };
+};
+
+jQuery.fragments = {};
+