var row
  function expand(oLink)  {
        if(document.all) { //for IE:
            row = oLink.parentNode;
        } else {
            row = oLink.parentNode;
        }
        var arrow = oLink.getElementsByTagName('IMG');
        var spans = row.getElementsByTagName('DIV');

        window.status=spans[0].id;

        if (spans[0].style.display != 'block') {
            spans[0].style.display = 'block';
            arrow[0].src = 'images/arrowon.gif';
            
        } else {
            spans[0].style.display = 'none';
            arrow[0].src = 'images/arrowoff.gif';
            
        }
  }