@return false if keyboard event was used by checkbox, else true
 */

handleCheckboxFocusEvent = function(event, checkbox) {
  //kick IE 7
  checkbox.node.className += ""; 

  return true;

} // end handleCheckboxFocusEvent

/**
 * handleCheckboxBlurEvent processes keys associated with a checkbox
 *
 * @param ( event ) event is the event handler for the event
 * @param ( Checkbox object ) checkbox is the Checkbox object that is the target of the keyboard event
 *
 * @return false if keyboard event was used b