i have forgot these:
my home.jsp
<%@ page contentType="text/html;charset=utf-8"%>
  | <%@ taglib uri="http://java.sun.com/jsf/html"; prefix="h"%>
  | <%@ taglib uri="http://java.sun.com/jsf/core"; prefix="f"%>
  | <%@ taglib uri="http://myfaces.apache.org/tomahawk"; prefix="t"%>
  | <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" 
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";>
  | <html>
  | <body>
  | <f:view>
  |     <head>
  |     <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
  |     <style type="text/css" media="all">
  |     @import "s.css";
  |   </style>
  |     </head>
  |     <div>
  |             <h:form rendered="#{not identity.loggedIn}">
  |                     
  |                     <div class="loginwindow">
  |                     <div class="title"><h:outputText value="user login" 
/></div>
  |                     <div class="username"><h:outputText value="user name" 
/></div>
  |                     <div class="ut"><h:inputText 
value="#{identity.username}" size="15" /></div>
  |                     <div class="password"><h:outputText value="password" 
/></div>
  |                     <div class="pt"><h:inputSecret 
value="#{identity.password}" size="17" /></div>
  |                     <div class="btn"><h:commandLink 
value="#{messages.m_enter}"     action="#{identity.login}" /></div>
  |                     <div class="loginbk"><h:graphicImage 
value="img/loginwindow.gif" /></div>
  |                     </div>
  |             </h:form> 
  |             <h:form rendered="#{identity.loggedIn}" id="f">
  |                     <div class="logout"><h:commandLink 
value="#{messages.m_out}"    action="#{identity.logout}" /></div>
  |             </h:form>
  |             <h:form id="f2"  rendered="#{identity.loggedIn}">
  |                     <div class="upcomponent">
  |                             <div class="upbk"><h:graphicImage 
value="img/upbk.gif" /></div>
  |                             <div class="upwave"><h:graphicImage 
value="img/upwave.gif" /></div>
  |                             <div class="computer"><h:graphicImage 
value="img/computer.gif" /></div>
  |                             <div class="recentprj"><h:graphicImage 
value="img/recentprj.gif" /></div>
  |                     </div>
  |                     <div class="menu">
  |                             <div class="bk">
  |                             <h:graphicImage value="img/menu.gif" />
  |                             </div>
  |                             <div class="n1">
  |                             <h:commandLink  value="#{messages.m_customer}"  
action="#{customerFinder.findCustomers}"></h:commandLink>
  |                             </div>
  |                             <div class="n2">
  |                             <h:graphicImage value="img/menu_seperate.gif" />
  |                             </div>
  |                             <div class="n3">
  |                                      <h:outputText value="" />
  |                             </div>
  |                             <div class="n4">
  |                                      <h:graphicImage 
value="img/menu_seperate.gif" />
  |                             </div>
  |                     </div>
  |                     <div class="comingnews">
  |                             <div class="comingnewsbk">
  |                             <h:graphicImage value="img/comingnews.gif" />
  |                             </div>
  |                             <div class="title">
  |                             <h:outputText value="comingnews"/>
  |                             </div>
  |                             <div class="param1_title">
  |                             <h:outputText value="comingnews"/>
  |                             </div>
  |                             <div class="param1">
  |                             <h:outputText value="comingnews"/>
  |                             </div>
  |                             <div class="param1_submit">
  |                             <h:outputText value="more"/>
  |                             </div>
  |                             <div class="param1bk">
  |                             <h:graphicImage value="img/button.gif"/>
  |                             </div>
  |                             <div class="param2_title">
  |                             <h:outputText value="comingnews"/>
  |                             </div>
  |                             <div class="param2">
  |                             <h:outputText value="comingnews"/>
  |                             </div>
  |                             <div class="param2_submit">
  |                             <h:outputText value="more"/>
  |                             </div>
  |                             <div class="param2bk">
  |                             <h:graphicImage value="img/button.gif"/>
  |                             </div>
  |                     <div class="param3_title">
  |                             <h:outputText value="comingnews"/>
  |                     </div>
  |                     <div class="param3">
  |                             <h:outputText value="comingnews"/>
  |                     </div>
  |                     <div class="param3_submit">
  |                             <h:outputText value="more"/>
  |                     </div>
  |                             <div class="param3bk">
  |                             <h:graphicImage value="img/button.gif"/>
  |                             </div>
  |                     </div>
  |             
  |                     <div class="aboutus">
  |                             <div class="imgbk">
  |                                     <h:graphicImage value="img/aboutus.gif" 
width="456" height="433" />
  |                             </div>
  |                             <div class="title"><strong>
  |                                     <h:outputText value="aboutus"/>
  |                                     </strong>
  |                             </div>
  |                             <div class="content"><strong>
  |                                     <h:outputText value="aboutus"/>
  |                                     </strong><br />
  |                             </div>
  |                             <div class="learnmore">
  |                                     <h:outputText value="more"/>
  |                             </div>
  |                             <div class="learnmorebk">
  |                             <h:graphicImage value="img/button.gif"/>
  |                             </div>
  |                             <div class="img">
  |                                     <h:graphicImage value="img/ourimg.jpg" 
width="160px" />
  |                             </div>
  |                     </div>
  |                     <div class="gradient">
  |                             <div class="gradientimg">
  |                                     <h:graphicImage 
value="img/gradient.gif" width="780px" height="691px" />
  |                             </div>
  |                     </div>
  |                     <div class="downwave">
  |                             <div class="downwaveL">
  |                                     <h:graphicImage 
value="img/downwaveL.gif" />
  |                             </div>
  |                             <div class="downwaveM">
  |                                     <h:graphicImage
  |                                             value="img/downwaveM.gif" />
  |                             </div>
  |                             <div class="downwaveR">
  |                                     <h:graphicImage
  |                                             value="img/downwaveR.gif" />
  |                             </div>
  |                     </div>
  |                     <div class="version">
  |                              <h:outputText value=" [EMAIL PROTECTED] " />   
 <br />
  |                             <h:outputText value="SAPCRM.CN @ 2001-2005. " />
  |                     </div>
  |             </h:form>
  |     </div>
  | 
  | </f:view>
  | </body>
  | </html>
  | 

my customer.jsp
<%@ taglib uri="http://java.sun.com/jsf/html"; prefix="h"%>
  | <%@ taglib uri="http://java.sun.com/jsf/core"; prefix="f"%>
  | <%@ taglib uri="http://myfaces.apache.org/tomahawk"; prefix="t"%>
  | <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" 
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";>
  | <html xmlns="http://www.w3.org/1999/xhtml"; xml:lang="en" lang="en">
  | <f:view>
  |   <head>
  |   <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
  |   <title>
  |   <h:outputText value="#{messages.Home}" />
  |   </title>
  |   <style type="text/css" media="all">
  |     @import "customer.css";
  |   </style>
  |   </head>
  |   <body>
  |   <h:form rendered="true">
  |     <div class="customer" >
  |       <!---------three buttons on top-------------->
  |       <div class="customerbkup">
  |             <div class="bk">
  |             <h:graphicImage value="../img/customerdetail/bkup.gif" />
  |             </div>
  |         <div class="newcustomer">
  |           <h:commandLink action="#{customerEditor.createCustomer}"
  |                     value="#{messages.m_new}"  style="text-decoration:none" 
/>
  |         </div >
  |         <div class="deletecustomer">
  |           <h:commandLink value="#{messages.m_delete}"
  |                     action="#{customerEditor.deleteData}"  
style="text-decoration:none" />
  |         </div>
  |         <div class="editcustomer">
  |           <h:commandLink  value="#{messages.m_edit}"
  |                     action="#{customerSelector.select}" 
style="text-decoration:none"> </h:commandLink>
  |         </div>
  |         <div class="menu">
  |           
  |           <div class="n1">
  |             <h:commandLink  value="#{messages.m_homepage}"
  |                     action="home" style="text-decoration:none"> 
</h:commandLink>
  |           </div>
  |           
  |           <div class="n2">
  |             <h:commandLink  value="#{messages.m_customer}"
  |                     action="#{customerFinder.findCustomers}" 
style="text-decoration:none"> </h:commandLink>
  |           </div>
  |                         <div class="n3">
  |             <h:outputText value="c" />
  |           </div>
  |           <div class="n4">
  |             <h:outputText value="d" />
  |           </div>
  |           
  |         </div>
  |       </div>
  |       <!----------cus----list--------------------->
  |       <div class="customerbkmid">
  |             <div class="page">
  |         <h:dataTable value="#{customerList}" var="project"
  |                     rendered="#{customerList.rowCount>0}"
  |                                              styleClass="dvdtable" 
  |                                      headerClass="dvdtablehead"
  |                                      rowClasses="results"
  |                                      columnClasses="dvdtablecol">
  |           <h:column>
  |             <f:facet name="header">
  |               <h:outputText value="id" />
  |             </f:facet>
  |             <h:outputText value="#{project.custId}" />
  |           </h:column>
  |           <h:column>
  |             <f:facet name="header">
  |               <h:outputText value="#{messages.m_customername}" />
  |             </f:facet>
  |             <h:commandLink value="#{project.custName}"
  |                                     action="#{customerSelector.select1}" 
style="text-decoration:none"/>
  |           </h:column>
  |           
  |           <h:column>
  |             <f:facet name="header">
  |               <h:outputText value="#{messages.m_customercity}" />
  |             </f:facet>
  |             <h:outputText value="#{project.custCity}" />
  |           </h:column> 
  |           
  |           <h:column>
  |             <f:facet name="header">
  |               <h:outputText value=" \u56FD  \u5BB6" />
  |             </f:facet>
  |             <h:outputText value="#{project.custCountry}" />
  |           </h:column> 
  |                             
  |           <h:column>
  |             <f:facet name="header">
  |               <h:outputText value="#{messages.m_customerdesc}" />
  |             </f:facet>
  |             <h:outputText value="#{project.custDesc}" />
  |           </h:column>    
  |           
  |           <h:column>
  |             <f:facet name="header">
  |               <h:outputText value="#{messages.m_customeremployeenum}" />
  |             </f:facet>
  |             <h:outputText value="#{project.custEmployeeNum}" />
  |           </h:column>  
  | 
  |           <h:column>
  |             <f:facet name="header">
  |               <h:outputText value="#{messages.m_customerfax}" />
  |             </f:facet>
  |             <h:outputText value="#{project.custFax}" />
  |           </h:column>  
  |           
  |           <h:column>
  |             <f:facet name="header">
  |               <h:outputText value="#{messages.m_customerphone}" />
  |             </f:facet>
  |             <h:outputText value="#{project.custPhone}" />
  |           </h:column>  
  |           
  |           <h:column>
  |             <f:facet name="header">
  |               <h:outputText value="#{messages.m_customerprovince}" />
  |             </f:facet>
  |             <h:outputText value="#{project.custProvince}" />
  |           </h:column>  
  | 
  |           <h:column>
  |             <f:facet name="header">
  |               <h:outputText value="#{messages.m_customerlocation}" />
  |             </f:facet>
  |             <h:outputText value="#{project.custLocation}" />
  |           </h:column> 
  |           
  |           
  |           <h:column>
  |             <f:facet name="header">
  |               <h:outputText value="#{messages.m_customertype}" />
  |             </f:facet>
  |             <h:outputText value="#{project.custType}" />
  |           </h:column> 
  |           
  |                               
  |           <h:column>
  |             <h:selectBooleanCheckbox value="#{customerSelections[project]}" 
/>
  |           </h:column>
  |         </h:dataTable>
  |         
  |         </div>
  |         <!-----------------prev and next buttons on 
bottom---------------------->
  |         <div class="customerbtn">
  |           <div class="nextpage">
  |             <h:commandLink action="#{customerFinder.nextPage}"
  |                     rendered="#{!customerFinder.lastPage}" 
style="text-decoration:none">
  |               <h:outputText value="lastPage" />
  |             </h:commandLink>
  |           </div>
  |           <div class="prevpage">
  |             <h:commandLink action="#{customerFinder.prevPage}"
  |                     rendered="#{!customerFinder.firstPage}" 
style="text-decoration:none">
  |               <h:outputText value="firstPage"  />
  |             </h:commandLink>
  |           </div>
  |           <div class="customerbkbottom" >
  |                     <h:graphicImage 
value="../img/customerdetail/bkbottom.gif" />
  |               </div>
  |         </div>
  |        </div>
  |       </div>
  |     </div>
  |   </h:form>
  |   </body>
  | </f:view>
  | </html>
  | 

When i click the home.jsp and invoke " 
action='#{customerFinder.findCustomers}'", so it will be lead to customer.jsp. 
and this time i will see "???" in the customer.jsp,so i refresh the page by the 
button on the internet exploer,so everything is ok. tell me why?

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http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4065405#4065405

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