JSTL paging problem

[pingkan paula]

I have a problem paging data on my JSP, I have this code to page from collection stored in request scope, The data was shown on the page but it didn't show any "next" or "prev" value.
Is it because it didn't catch the right bean size?
I try to put <c ut value="${pbSize}"/> to display the value of the bean size but it didn't shown on the page
Anyone can give me some hint?

thanks in advance,

paula

   
 
<!-- Main body table -->
<jsp:useBean id="PositionBean" class="com.evisitek.position.PositionDTO"/>
<bean:size id="pbSize" name="posisi_list"/>
 
<%
  List plist=(List)request.getAttribute("posisi_list");
  Iterator iter=plist.iterator();
  while(iter.hasNext()){
       PositionBean=(PositionDTO)iter.next();
  }
%>
 
<c:set var="pageSize" value="20"/>
 <c:set var="pageBegin" value="${param.pageBegin}"/>
 <c:set var="pageEnd" value="${pageBegin + pageSize - 1}"/>
 
 <c:if test="${(pageBegin - pageSize) ge 0}">
    <a href='<c:url value="/posisilihat.do">
               <c :-P	 aram name="pageBegin" value="${pageBegin - pageSize}"/>
             </c:url>'>
      Prev
    </a>
  </c:if>
 
<c:if test="${(pbSize gt pageSize) and (pageEnd lt pbSize)}">
   <a href='<c:url value="/posisilihat.do">
              <c :-P	 aram name="pageBegin" value="${pageBegin + pageSize}"/>
            </c:url>'>
     Next
   </a>
 </c:if>
 
<h3>DAFTAR POSISI</h3>
 <td>
     <c :-o	 ut value="${pbSize}"/>
 </td>
 
<table cellpadding="1" cellspacing="1" border="0" width="100%">
  <tr>
 
    <TD CLASS="subtitle">View</TD>
    <TD CLASS="subtitle">ID</TD>
    <TD CLASS="subtitle">Deskripsi Posisi</TD>
    <TD CLASS="subtitle">Username</TD>
    <TD CLASS="subtitle">Nama Asli</TD>
    <TD CLASS="subtitle">Atasan Langsung</TD>
    <TD CLASS="subtitle">Distrik</TD>
  </tr>
 
  <tr>
      <c:forEach var="pres" items="${posisi_list }"
                  begin="${pageBegin}" end="${pageEnd}">
    <tr>
 
    <td class="cell_lightgreen" width=35 align="center"><a href="<%=request.getContextPath()%>/posisilihat.do?action=<%=AppSmukConstants.REQ_POSISI_LIHAT%>&positionId=<%=PositionBean.getCode()%>&positionGroupId=<%=PositionBean.getGroupId()%>"><img src="<%=request.getContextPath()%>/images/view.gif" border="0"></a>
    </td>
 
             <td class="cell_lightgreen">
               <c :-o	 ut value="${pres.code}"/>
            
             </td>
             <td class="cell_lightgreen">
               <c :-o	 ut value="${pres.deskripsi}"/>
             </td>
             <td class="cell_lightgreen">
               <c :-o	 ut value="${pres.nama}"/>
             </td>
             <td class="cell_lightgreen">
               <c :-o	 ut value="${pres.realName}"/>
             </td>
             <td class="cell_lightgreen">
               <c :-o	 ut value="${pres.superior}"/>
             </td>
             <td class="cell_lightgreen">
               <c :-o	 ut value="${pres.distrik}"/>
             </td>
           </tr>
       </c:forEach>
 
  </tr>
 
  <TR><TD CLASS="SUBTITLE" colspan="4"> </TD>
  </TR>
 
</table>
<table border="0" width="100%" cellspacing="2" cellpadding="8">
  <tr>
    <td width="100%" COLSPAN=4 CLASS="cell_cyan" align="center">
     <a href="<%=request.getContextPath()%>/posisibaru.do">
      <IMG BORDER="0"  SRC="<%=request.getContextPath()%>/images/new.gif">
      New
      </a>
    </td>
  </tr>
</table>
 
<%@ include file="../footer.jsp" %>