>>Sorting is invisible. Is it possible to add underlining or some other visual property to output so that user can see by which column table is sorted?
>
>Sure. You can study the output of the class (specifically, the XSL section) to see how the XSL builds the HTML output using the XML. All it would take is a simple conditional in the first loop (that builds the table header) to alter for the header that was just clicked.

Can you give a example ?

>>2. For long table, sorting takes some time.
>
>Curious, how many records are you dealing with? I don't think there's really anything you can do about performance- there's no native way to 'index' XML on the client.

I have about 500 records and sorting takes some seconds.
I do'nt dream to speed xml up. However I want to give some visual indication
(hourglass cursor or some wait window nowait message) about
sorting.
xml_export changes mouse cursor to hand in table header using style
sheet.

What is the best way to edit recors returned by this class?
Is it possbile to
change table cells to hypelinks so that when user clicks in any row,
an edit form will appear with data from that row?

I have many empty columns (empty strings) in table. Is it possible to change this class that no xml tags are generated for those columns in some rows. This will decrease xml data size significantly.