TableView: Javascript-Error: parentNode is Null

Hallo,

I have a TableView like this

          <htmlb:tableView id               = "systemuebsicht"
                           allRowsEditable  = "TRUE"
                           design           = "ALTERNATING"
                           filter           = "server"
                           headerText       = "Systemuebersicht"
                           selectionMode    = "lineedit"
                           onRowSelection   = "sel_row_sysueb"
                           table            = "//mdlauftrag/positionen"
                           iterator         = "<%= my_iterator %>"
                           selectedRowIndex = "<%= mdlauftrag->sel_row_tv_sysueb %>"
                           visibleRowCount  = "8"
                           fillUpEmptyRows  = "true" >
          </htmlb:tableView>

In the browser I see one filter-row and 7 rows the user can select for input.

If I select the last row in the table I get a javascript error:

'parentNode' ist Null oder kein Objekt

Is there any solution to this problem?

Guido