text: 
  ;(function($){
  
    $('.batch-field-checkbox').bind('click', function(event){
        if (!event) { var event = window.event; }
        var target = event.target ? event.target : event.srcElement;
  
        var wrap = $(this).parent().parent().find('.control-wrap');
        if(target.checked){
          wrap.show('fast');
        } else {
          wrap.hide('fast');
        }
    });
  
  })(jQuery);