CXML-GET-PREV-SIBLING
The CXML-GET-PREV-SIBLING function  allows you to move backwards in an XML file. 
Syntax:
 CALL "C$XML" USING CXML-GET-PREV-SIBLING                     handle              GIVING siblingHandle  | 
Parameters:
CXML-GET-PREV-SIBLING  | Constant  |    | 
handle  | USAGE HANDLE  | A XML element handle.  | 
Return code:
siblingHandle must be a USAGE HANDLE data item. It receives the handle of the previous sibling element. It’s good practice to free this handle with a DESTROY statement before reusing it in order to avoid memory leaks.