Jquery-获取勾选的checkbox的同级节点数量

    // 获取勾选的标签值得上一个兄弟节点
            var groups = [];
            $('input[name="group_name"]:checked').siblings(".lable").each(function(){ 
                groups.push($(this).contents()); }); 
            // 将Groups的长度赋值给隐藏域
            $("#groupsCount").val(groups.length);

<c:forEach items="${lableGroupList}" var="var" varStatus="vs">
<div>
                                            <label class="lable"
                                                style="line-height: 30px;margin:0 15px;">
                                                ${var.group_name}:</label>
                                            <c:forEach items="${lableList}" var="lable" varStatus="vs">
                                                <c:choose>
                                                    <c:when
                                                        test="${lable.itemcat_group_id == var.itemcat_group_id}">
                                                         <input name="group_name"
                                                            value="${lable.itemcat_id}" type="checkbox" />    
                                                     ${lable.itemcat_name}
                                                    
                                               </c:when>
                                                </c:choose>
                                            </c:forEach>
    </div>
                                        </c:forEach>

        <input type="hidden" id="groupsCount" name="groupsCount">