[basex-talk] Small request on xquery ( how to put xml content in a attribute element )

Hello, I'm using basex to manage numerous collection of xml structure , in the context of a migration program, i will transfer these structure to an external system , so i need to send them within an embedded attribut value ( of a xml ) : ex: BaseX current content is : <NodeX></NodeX> Remote DataBase ( not xml ) requieres : <Value title="FNX" value="<NodeX></NodeX>"> The XML source is translated to a litteral string ....but what is the function ( Cast ? ) responsible to operate the translation ? By the way , what is the reversed operation that read attribut to XML structure . Best Regards