Finished the table row highlighting code by adding a new parameter into the sendRequest JS function, allowing the passing of a function as a parameter; the function is then called with the incoming XHTML node as a parameter, after the new node has been inserted into the document. The only time highlighting doesn't occur right now is when the whole table is replaced, because a new record has been inserted, but I don't think that's crucial because the record inserted is at the bottom of the current row set, so it's obvious which one it is.