+
+ cache: {},
+
+ data: function( elem, name, data ) {
+ elem = elem == window ?
+ windowData :
+ elem;
+
+ var id = elem[ expando ];
+
+ // Compute a unique ID for the element
+ if ( !id )
+ id = elem[ expando ] = ++uuid;
+
+ // Only generate the data cache if we're
+ // trying to access or manipulate it
+ if ( name && !jQuery.cache[ id ] )
+ jQuery.cache[ id ] = {};
+
+ // Prevent overriding the named cache with undefined values
+ if ( data != undefined )
+ jQuery.cache[ id ][ name ] = data;
+
+ // Return the named cache data, or the ID for the element
+ return name ?
+ jQuery.cache[ id ][ name ] :
+ id;
+ },
+
+ removeData: function( elem, name ) {
+ elem = elem == window ?
+ windowData :
+ elem;
+
+ var id = elem[ expando ];
+
+ // If we want to remove a specific section of the element's data
+ if ( name ) {
+ if ( jQuery.cache[ id ] ) {
+ // Remove the section of cache data
+ delete jQuery.cache[ id ][ name ];
+
+ // If we've removed all the data, remove the element's cache
+ name = "";
+
+ for ( name in jQuery.cache[ id ] )
+ break;
+
+ if ( !name )
+ jQuery.removeData( elem );
+ }
+
+ // Otherwise, we want to remove all of the element's data
+ } else {
+ // Clean up the element expando
+ try {
+ delete elem[ expando ];
+ } catch(e){
+ // IE has trouble directly removing the expando
+ // but it's ok with using removeAttribute
+ if ( elem.removeAttribute )
+ elem.removeAttribute( expando );
+ }
+
+ // Completely remove the data cache
+ delete jQuery.cache[ id ];
+ }
+ },