public   ActionForward getOrganinfo_ajax(ActionMapping mapping, ActionForm form, 
            HttpServletRequest request, HttpServletResponse response)  { 
        String level2OrganId   =  request.getParameter( " level2OrganId " ); 
        System.out.print(level2OrganId); 
        IDReportLogic dreportLogic  =  (IDReportLogic)SpringFactory.getBeanFactory().getBean( " dreportLogic " ); 
        
        response.setContentType( " text/xml;charset=UTF-8 " ); 
        response.setHeader( " Cache-control " ,  " no-cache " ); 

         try { 
            
            String orgLevel  =  request.getParameter( " orgLevel " ); 
            String orgId  =  request.getParameter( " orgId " ); 
            
            

            StringBuffer sb = new StringBuffer(); 
            sb.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>"); 
            String str="<select><kkk><value>11111</value><text>北京</text></kkk>"; 
            String str2="<kkk><value>3333</value><text>上海</text></kkk></select>"; 
            sb.append(str); 
            sb.append(str2); */ 
            
            PrintWriter out  =  response.getWriter(); 
            out.write(str); 
            out.flush(); 
             return   null ; 
        }   catch  (Exception e)  { 
             //  TODO 自动生成 catch 块 
            request.setAttribute( " info " ,  " 获取二级机构异常！ " ); 
            e.printStackTrace(); 
             return  mapping.getInputForward(); 
        } 
        
    } 





二级机构： 

                      
                   < select name = " secOrganIdSel "  id = " secOrganIdSel " 
                  onchange = " selectChangeListener('2',this.options[this.selectedIndex].value); " > 
                       < option value = " -1 " > 请选择机构.. </ option > 
</ select > 

    三级机构： 
                   < select name = " thdOrganIdSel "  id = " thdOrganIdSel " 
                  onchange = " selectChangeListener('3',this.options[this.selectedIndex].value); " > 
                       < option value = " -1 " > 请选择机构.. </ option > 

</ select > 

四级机构： 
                   < select name = " forthOrganIdSel " > 
                       < option value = " -1 " > 请选择机构.. </ option > 
                   </ select > 

    < script language = " javascript "  type = " text/javascript " > 
        var  xmlHttp; 
       
        function  createXMLHttpRequest() { 
            if  (window.ActiveXObject) { 
                xmlHttp  =   new  ActiveXObject( " Microsoft.XMLHTTP " ); 
           } else   if (window.XMLHttpRequest) { 
                xmlHttp  =   new  XMLHttpRequest(); 
           } 
       } 
       
        // 查询指定页面 
        function  selectChangeListener(orgLevel,orgId) { 
       
         createXMLHttpRequest(); 
       
          var  url =   " <%=request.getContextPath()%>/dreportAction.do?method=getOrganinfo_ajax&orgLevel= " + orgLevel + " &orgId= " + orgId; 
         xmlHttp.open( " get " ,url, true ); 
          if (orgLevel  ==  ' 2 ') { 
              // 如果是选择默认的第一个，则是清空后面3级机构和4级机构。 
              var  tempSel  =  document.getElementById( " secOrganIdSel " ); 
              if (tempSel.options[tempSel.selectedIndex].value  ==   - 1 ) { 
                  var  tempSel_1  =  document.getElementById( " thdOrganIdSel " ); 
                   tempSel_1.options.length  =   1 ; 
                var  tempSel_2  =  document.getElementById( " forthOrganIdSel " ); 
                   tempSel_2.options.length  =   1 ; 
                    return   false ; 
             } 
             xmlHttp.onreadystatechange  =  callback2; 
         } else   if (orgLevel  ==  ' 3 ') { 
              // 如果三级机构默认的是第一个选项，则清空第4级机构 
             
              var  tempSel  =