JQuery同步删除左右两侧文件，通过隐藏域值，而不是传统的控件ID或名

//删除附件
function Ajax_DelAttachmentFile(attFileId) {
　　 /// <summary>
    /// 删除附件
    /// </summary>
    /// <param name="attFileId">文件ID</param>
    /// <returns></returns>

    var drawingState = $("#DrawingState").val();
    var drawingId = $("#DrawingId").val(), drawingListObj = $("#DrawingFileIdList"), drawingList = drawingListObj.val() + ",";
    $.getJSON("/Elevator/DelAttachmentFile", { drawingId: drawingId, drawingFileId: attFileId }, function (json) {

    　　//by litao 2012-06-08
       var objParentID = $(P_PopThis).parents("table")[0].id;     //当前对象上级为“table”的对象ID值
　　　　//根据objParentID推测出另一个对象ID值
       var brotherParentID = (/^.*s$/.test(objParentID)) ? objParentID.substr(0, objParentID.length - 1) : objParentID + "s";  
       $("#" + brotherParentID).find("input[type='hidden']").each(function (n, obj) {
       　　if ($(obj).attr("value") == attFileId) {
          　　$(obj).parents("tr").remove();
          }
       });            

       $(P_PopThis).parents("tr").remove();
       P_PopCls.isSuccess(1, '成功删除附件！');
       drawingList = drawingList.replace(attFileId + ",", "");
       drawingList != "" ? drawingList = drawingList.substring(0, drawingList.length - 1) : 0;
       drawingListObj.val(drawingList);
 　　});
 }