Div+Css+JS做多個顯示/隐藏内容塊

相關樣式：

Code

.mainbox h3{ margin-bottom:0px; line-height:32px;height:32px;padding-left:1em;background:url(http://www.cnblogs.com/Images/forumbg.gif) repeat-x 0 0;font-size:13px;font-weight:700;border-bottom:1px solid #E6E7E1;border-top:4px solid #E8F0F7; border-left:1px solid #E8F0F7;border-right:1px solid #E8F0F7;}

    .mainbox{ width:880px;position:relative; margin-left:auto; margin-right:auto; margin-bottom:5px;}

    .headactions{position:absolute;top:12px; right:24px;line-height:1em;}

.tablelist{ width: 880px; margin-left: auto; margin-right: auto; border:1px solid;}

     td{background:#e5f1f4;}

HTML：

<div class="mainbox">

            <span class="headactions">

                <img id="category_CN_img" src="http://www.cnblogs.com/Images/expand.jpg" alt="展開/收起" onclick="toggle_collapse('category_CN');"/>

            </span>

            <h3 onclick="toggle_collapse('category_CN');">

            <a href="#">Content</a>

            </h3>

            <div id="category_CN" style=" display:none;">

            <table  class="tablelist" align="center" cellpadding="0">

                <tr>

                    <td>

                        Title：

                    </td>

                    <td colspan="3">

                        <te:TETextBox ID="txtCSTitle" runat="server" Width="380px" MaxLength="100"></te:TETextBox>

                </tr>

                        Content：

                        <FCKeditorV2:FCKeditor ID="txtCSContent" runat="server" Height="350px" Width="98%">

                        </FCKeditorV2:FCKeditor>

            </table>

            </div>

        </div>

JS：

//顯示或隐藏内容

        function toggle_collapse(objname) {

            var obj = $("#" + objname);

            if (obj) {

                obj.slideToggle("2000");

            }

            var img = $("#" + objname + '_img');

            if (img) {

                if (img.attr("src") == "http://www.cnblogs.com/Images/collapse.jpg") {

                    img.attr("src", "http://www.cnblogs.com/Images/expand.jpg");

                    img.attr("title", "expand");

                }

                else {

                    img.attr("src", "http://www.cnblogs.com/Images/collapse.jpg");

                    img.attr("title", "collapse");

        }