求教:同一个页面中值传递的问题
在一个页面需要实现如下的功能: 
 通过选择下拉框来选中某一个值,然后降值自动传递给相同页面中的其他参数来完成相应的功能,该怎么实现呢?
------解决方案-------------------- <!DOCTYPE HTML PUBLIC  "-//W3C//DTD HTML 4.0 Transitional//EN ">  
  <HTML>  
  <HEAD>  
  <TITLE>  New Document  </TITLE>  
  <META NAME= "Generator " CONTENT= "EditPlus ">  
  <META NAME= "Author " CONTENT= " ">  
  <META NAME= "Keywords " CONTENT= " ">  
  <META NAME= "Description " CONTENT= " ">  
  </HEAD>  
  <script language=JavaScript>  
 function passvalue(){ 
 	for(var i=0;i <document.testdata.testvalue.options.length;i++) 
 	{ 
 		if (document.testdata.testvalue.options[i].selected==true) 
 		{ 
 			document.testdata.inputdata.value=document.testdata.testvalue.options[i].value; 
 		} 
 	} 
 } 
  </script>  
  <BODY>  
  <form name= "testdata ">  
 	 <select name= "testvalue " onchange= "passvalue() ">  
 		 <option value=1> test1 </option>  
 		 <option value=2> test2 </option>  
 		 <option value=3> test3 </option>  
 	 </select>  
 	 <input type=text name= "inputdata ">  
  </form>  
  </BODY>  
  </HTML>  
 用onchange不会刷新啊
------解决方案-------------------- <% 
    String name2 = request.getParameter( "name "); 
    if(name2 != null && ! " ".equals(name2)) 
    { 
       do something for name2 
    } 
 %>  
     <form name= "formname " method= "post " action= "***.jsp " >  
         <table  align= "center " border= "0 " cellpadding= "0 " cellspacing= "1 " >  
   	  <tr>  
              <td> 姓名: 
  <% 
        if(name2 != null && ! " ".equals(name2)) 
        {            
 %>  
   	    <input name= "name " type= "text "  value= ' <%=name2 %>  ' 
              onBlur= "javascript:if(document.all.formname.name.value !=  ' ')  
             {document.formname.action= ' ';document.formname.submit();}else alert 
             ( 'please input '); ">  
            </td>  
  <% 
        }	 
        else 
        {    
 %>  
             <input name= "injure_name " type= "text "  value= ' ' onBlur= "javascript:if 
             (document.all.formname.name.value !=  ' ') 
             {document.formname.action= ' ';document.formname.submit();}else alert 
             ( 'please input '); " ">  
             </td>  
  <% 
        } 
 %>  
              </tr>  
         </table>
------解决方案-------------------- <html:html locale= "true ">  
    <head>  
      <html:base />        
      <title> telAdd.jsp </title>  
      <link rel= "stylesheet " href= "css/aa.css " type= "text/css ">  
 	 <meta http-equiv= "content-type " content= "text/html; charset=UTF-8 "/>   	 
 	 <!-- 
 	 <link rel= "stylesheet " type= "text/css " href= "styles.css ">  
 	-->  
  <script language= "JavaScript ">      
 	function getDept(com)