- 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 ] || null :
- 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 ];
- }
- },
-