function getObj(id)
{
  if ( document.all )
    obj = eval ('document.all.' + id);
  else
    obj = document.getElementById(id);
  return obj;
}

function nop(){}

function setStyle( item, style )
{
  obj = getObj('_' + item + '_A');
  obj.className = style;
  obj = getObj('_' + item + '_TD');
  obj.className = style;
}

function showPreview(id, desc)
{
  window.open('helpers/preview.php?id=' + id + '&desc=' + desc, 'preview',
   	      'scrollbars=no,status=no,toolbar=no,resizable=1,location=no,menu=no,width=100,height=100');
}