在Js中怎么实现，在同一个表单里一个<select name=“id”><option></option></select>根据id的值不同来改变。。。。

Question

<select size="1" name="id">
                        <option value="1" <%=(id==1)?"selected":""%>>aaaa</option>
                        <option value="0" <%=(id==0)?"selected":""%>>bbbb</option>
                      </select>
你试试!

Answer 1

<select onchange="SetSomething(this.value);" ...然后你可以在SetSomething(v)这个函数里根据v去改变你要改变的东西参考js和DHTML等~```````

Answer 2

to:yiyioo(天一(日啃一文,月习一类,不求通透,只求半解)) ===========================
<select name="template_id" style="width:120px">
                  <option value="0" style='color:#3300FF'>=请选择模板=</option>
                      <%
                         Vector vct =new Vector();
                         vct = tmp.getTmpList();
                          for(int i=0;i<vct.size();i++)
                          {
                              TransferTemplate temp = (TransferTemplate)vct.get(i);
                       %>
                      <option value="<%=temp.getTemplate_id()%>" style='color:#3300FF'><%=temp.getTemplate_name()%></option>
                      <%}%>
                    </select> </td>
                </tr>
<tr>
  <td height="25" width="112" align="right"><font color="#CC0000">附　　件：</font></td>
<td>
                <input type="hidden" name="sAffixIDs"  value="" >
                <iframe frameborder="0" width="600" id="affix" name="affix" src="../include/jsp/AffixFrame.jsp">
</iframe>
</td>
</tr>
                <tr>
                  <td height="30" width="112" align="right"><font color="#CC0000">文件内容：</font></td>
                  <td width="849" >
                <%
//                    String template_id = request.getParameter("template_id");
//                    System.out.println(template_id);
//                    if(template_id!=null && !template_id.equals(""))
//                    {
                %>
                 <img src="../images/enter1.gif" border=0 title="点击进入Word模版编辑" onClick="editInWord(<%=template_id%>)" style="cursor:hand" edit="word">                <%//}else{%>
                   <img src="../images/new1.gif" border=0 title="点击新建Word" onClick="newInWord()" style="cursor:hand" edit="word">                <%//}%>
========================================如果模板选择的值为0，就显示new1.gif,否则就显示enter1.gif