将复选框(多个选项)转换为单选按钮或复选框？

Question

我有以下复选框列表.输出列表的方式允许用户选择多个值.但是,我只需要允许用户从下面的复选框列表中选择一个值.

有可能用jQuery以某种方式实现这一点吗？将列表更改为单选按钮,选择列表或其他可能有用的内容也是可以的.

不幸的是我无法访问生成函数,所以我无法更改输出.

提前致谢

<form class="ajax-form" id="user-register" method="post" accept-charset="UTF-8" action="(...)">

(...)

<div id="edit-notifications-custom-custom-berlin-wrapper" class="form-item form-option">
    <label for="edit-notifications-custom-custom-berlin" class="option"><input type="checkbox" class="form-checkbox" value="1" id="edit-notifications-custom-custom-berlin" name="notifications_custom[custom_berlin]"> Berlin</label>
</div>

<div id="edit-notifications-custom-custom-hamburg-wrapper" class="form-item form-option">
    <label for="edit-notifications-custom-custom-hamburg" class="option"><input type="checkbox" class="form-checkbox" value="1" id="edit-notifications-custom-custom-hamburg" name="notifications_custom[custom_hamburg]"> Hamburg</label>
</div>

<div id="edit-notifications-custom-custom-frankfurt-am-main-wrapper" class="form-item form-option">
    <label for="edit-notifications-custom-custom-frankfurt-am-main" class="option"><input type="checkbox" class="form-checkbox" value="1" id="edit-notifications-custom-custom-frankfurt-am-main" name="notifications_custom[custom_frankfurt-am-main]"> Frankfurt am Main</label>
</div>

<div id="edit-notifications-custom-custom-duesseldorf-wrapper" class="form-item form-option">
    <label for="edit-notifications-custom-custom-duesseldorf" class="option"><input type="checkbox" class="form-checkbox" value="1" id="edit-notifications-custom-custom-duesseldorf" name="notifications_custom[custom_duesseldorf]"> Düsseldorf</label>
</div>

<div id="edit-notifications-custom-custom-bielefeld-wrapper" class="form-item form-option">
    <label for="edit-notifications-custom-custom-bielefeld" class="option"><input type="checkbox" class="form-checkbox" value="1" id="edit-notifications-custom-custom-bielefeld" name="notifications_custom[custom_bielefeld]"> Bielefeld</label>
</div>

<div id="edit-notifications-custom-custom-muenchen-wrapper" class="form-item form-option">
    <label for="edit-notifications-custom-custom-muenchen" class="option"><input type="checkbox" class="form-checkbox" value="1" id="edit-notifications-custom-custom-muenchen" name="notifications_custom[custom_muenchen]"> München</label>
</div>

(...)

asdasd

Answer 1

尝试这个：

$('[type=checkbox]').attr('type','radio');