初学JSP,请教一下,我下面代码的问题!

<div id="dv" style="height:300px; width = 730; overflow-y:auto"> 
                    <table width="720" border="1" class="negoList" cellspacing="0" cellpadding="0" bordercolor="#0A336D">
                        <%
int datanumber= -1;
for(int i=0;i<customcomment_list.size();i++){
CustomerComment customercomment=(CustomerComment)customcomment_list.get(i);
String timeformat = customercomment.getINSERTED_TM();// @return String 登録日
SimpleTime simpletime = new SimpleTime();
String timeshow = simpletime.turnToOutputDate(timeformat);
String checkboxname = "deleteObject"+i;
String timename = "timeObject"+i;
datanumber = i;
%>
                        <tr class="light"> 
                            <td width="59"> <input type="checkbox" name="<%=checkboxname%>" value="Y"> 
                                <input type="hidden" name="<%=timename%>" value="<%=timeformat%>"> 
                            </td>
                            <td width="89"><%=timeshow%></td>
                            <td width="101"><%=hashmapmember.get(customercomment.getINSERTED_ID())%> 
                            </td>
                            <td width="461"><%=customercomment.getCONTENT()%></td><!-- getCONTENT()@return String 固有情報内容-->
                        </tr>
                        <input type="hidden" name="datanumber" value="<%=datanumber%>">
                    </table>  
                       <%}%>
                    <br>
     契約先CD情報<br>
        <table width="720" class="negoList" border="1" cellspacing="0" cellpadding="0" bordercolor="#0A336D">
                        <tr class=heading > 
                        <td class=contentIP width="60"> 削除対象 </td>
                        <td class=contentIP width="90"> 登録日 </td>
                        <td class=contentIP width="100"> 登録者 </td>
                        <td class=contentIP width="460"> コメント </td>
                        </tr>
                      </table>  
                      <% 
                        int data= -1;
for(int k=0;k<customcomment_list.size();k++){
CustomerComment cdcustomercomment=(CustomerComment)customcomment_list.get(k);
String cdtimeformat = cdcustomercomment.getINSERTED_TM();// @return String 登録日
SimpleTime cdsimpletime = new SimpleTime();
String cdtimeshow = cdsimpletime.turnToOutputDate(cdtimeformat);
String cdcheckboxname = "deleteObject"+k;
String cdtimename = "timeObject"+k;
data = k;
     %>
<%if(cdcustomercomment.getFlag()=="0"){%>         
     <table width="720" border="1" class="negoList" cellspacing="0" cellpadding="0" bordercolor="#0A336D">
                             <tr class="light"> 
                             <td width="59"><input type="checkbox" name="<%=cdcheckboxname%>" value="Y"> 
                                <input type="hidden" name="<%=cdtimename%>" value="<%=cdtimeformat%>"> 
                             </td>
                             <td width="89"><%=cdtimeshow%></td>
                              <td width="101"><%=hashmapmember.get(cdcustomercomment.getINSERTED_ID())%><!--return String 登録者ID -->
                             </td>
                             <td width="461"><%=cdcustomercomment.getCONTENT()%></td><!-- getCONTENT()@return String 固有情報内容-->
                          </tr>
                          </table>
                      <% }else{%><%}%>
                    <%}%>                </div>
---------------------------------
当只有下面代码时,显示是正确的:
                    <table width="720" border="1" class="negoList" cellspacing="0" cellpadding="0" bordercolor="#0A336D">
                        <%
int datanumber= -1;
for(int i=0;i<customcomment_list.size();i++){
CustomerComment customercomment=(CustomerComment)customcomment_list.get(i);
String timeformat = customercomment.getINSERTED_TM();// @return String 登録日
SimpleTime simpletime = new SimpleTime();
String timeshow = simpletime.turnToOutputDate(timeformat);
String checkboxname = "deleteObject"+i;
String timename = "timeObject"+i;
datanumber = i;
%>
                        <tr class="light"> 
                            <td width="59"> <input type="checkbox" name="<%=checkboxname%>" value="Y"> 
                                <input type="hidden" name="<%=timename%>" value="<%=timeformat%>"> 
                            </td>
                            <td width="89"><%=timeshow%></td>
                            <td width="101"><%=hashmapmember.get(customercomment.getINSERTED_ID())%> 
                            </td>
                            <td width="461"><%=customercomment.getCONTENT()%></td><!-- getCONTENT()@return String 固有情報内容-->
                        </tr>
                        <input type="hidden" name="datanumber" value="<%=datanumber%>">
                    </table>  
                       <%}%>