function formsubmit(thisfield) {
  if (!thisfield)
   return;
  thisform = thisfield.form;
  if (thisfield.selectedIndex) {
   if (thisfield.selectedIndex != 0)
    thisform.submit();
   else
    return;
  }
  else if (thisfield.value != '')
   thisform.submit();
  else
   return;
 }