批量显示/隐藏

<td><input type="checkbox" class="kuang1"/></td>

//批量显示及隐藏$("#batch_op").click(function(){    var brand_ids='';    $(".kuang1:checked").each(function(){        brand_id=$(this).parents('tr').attr('brand_id');        //alert(brand_id);        brand_ids=brand_ids + brand_id + ',';    })    //alert(brand_ids);    8,9,    //已经得出你选的id,下面自己想去})