TheCarbonAccount = window.TheCarbonAccount || {};
TheCarbonAccount.showHideYesNo = function(yes_no_id, show_hide_id) {
  $D = YAHOO.util.Dom;
  $E = YAHOO.util.Event;
  var showhide = $D.get(show_hide_id);

  var yesno = $D.get(yes_no_id);
  if(yesno == null) {
    yesno = $D.get('id_' + yes_no_id);
  }
  if(yesno == null) {
    return;
  }

  yesno.onchange = function(e) {
      var picked = yesno.options[yesno.selectedIndex].value;
      if(picked == 'True') {
         showhide.style.display = '';
      } else {
         showhide.style.display = 'none';
      }
  }

  // Make sure we reflect the current state
  yesno.onchange();
}