ajax 錯誤 對象不支援此屬性或方法 請教大家指點 謝謝 呵呵 代碼如下

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 <td width="56" height="27" align="center" valign="middle"  onclick="div_menu('1','1')" class="<%=cname1%>">
                                                                            我的好友
                                                                        </td>
                                                                        <td width="5">
                                                                        </td>
                                                                        <td width="56" height="27" align="center" valign="middle" onclick="div_menu('1','2')" class="<%=cname2%>">
                                                                            發送邀請
                                                                        </td>
                                                                        <td width="5">
                                                                        </td>
                                                                        <td width="56" height="27" align="center" valign="middle" onclick="div_menu('1','3')" class="<%=cname3%>">
                                                                            接受邀請
                                                                        </td>

 

 

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       //郵箱小分類切換
        function div_menu(pageIndex, para) {
         $.get("ajax/friend_ajax.aspx?pageIndex="+pageIndex+"&choice="+para, null, function(data) {
                document.getElementById("div_showList").innerHTML = data;
            })
        }

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<script type="text/javascript" src="/pl/jquery.js"></script>