| dls.documentExtractPart | 
	      This function extracts an XML element from an existing document and creates a new document from the extracted element. | 
	    
	    
	      | dls.linkExpand | 
	      This function performs a single level expansion of a single XInclude reference. | 
	    
	    
	      | dls.linkReferences | 
	      This function returns a list of all the distinct URIs of documents referenced (either directly or indirectly) in the expansion of the node. | 
	    
	    
	      | dls.nodeExpand | 
	      This function recursively examines the node for XInclude references and expands them, following the rules of the XInclude specification. |