求助，为什么调用show来显示div会提示找不到对象？

Question

小弟是新手，怎么也找不到原因了，代码如下：<div id="01" class="popDiv" style="width: 500px; display:none"  >
            <div class="popTitle">
                <h4>
                    <label id="lbPopTitle">
                        查看</label></h4>
                <a href="javascript:void(0)" id="aClose" class="popClose" onclick="closedPow();">
                </a>
            </div>
            <div class="popContent">
                <div class="main3" id="main1">
                    <div>
                        <div>
                            <ul class="formStyle popMargin">
                                <li>
                                    <label>
                                        国家
                                    </label>
                                    <asp:Label runat="server" ID="lblCOUNTRY"></asp:Label>
                                </li>                   
                            </ul>
                        </div>
                    </div>
                </div>
            </div>
        </div><script type="text/javascript">
          function showPow() {
              $("#01").show();   -----------------此行出错
          }
          function closedPow() {
              $("#01").hide();
          }
</script>  

Answer 1

这样看不出来问题啊，还有更多的上下文资料？这个showPow也没看到你这段代码中调动啊。

Answer 2

多谢各位，改成这样就可以了：
function showpow()
{
document.getElementById("01").style.display="block";
}

Answer 3

display:none
隐藏的元素是取不到的。