jquery 语法帮助

Question

大家好，
我是使用变量的新手，并且正在尝试让这个函数正常工作。我想知道是否有人可以帮我找到其中的问题。它似乎根本不起作用。我不确定我是否正确标记了所有内容。

<script type="text/javascript">
    $(document).ready(function() {
        $('.partners_internal_product_select input[type=radio]').live('change', function(){ //Setting up the chenge event for the radio button
            var AffectedRegistration = $(this).closest('.partners_internal_product_registration'); //Select the nearest div with this class
            var ID = $(this).attr('id'); //getting the ID of the radio button
            var IDArray = ID.split('_'); //seperating the ID into an array
            var regURL = 'accomodationpartners/'+IDArray[1]+'.php'; //building a url to load
            $(AffectedRegistration).load(regURL); //loading the url into the nearest div.partners_internal_product_registration
        });
    });

    </script>
    <div class="partners_internal_item_hdr"><h1 class="white">Program Registration</h1></div>
    <div class="partners_internal_item">
        <div class="partners_internal_item_subhdrfull"><h2>Select a Product to Register For:</h2></div>
        <div class="partners_internal_product_select">
            <fieldset><input type="radio" class="productselect" name="productselect" id="productselect_daytrip" /><label for="productselect_daytrip">Day Trip</label></fieldset>
            <fieldset><input type="radio" class="productselect" name="productselect" id="productselect_courseregistraion" /><label for="productselect_courseregistraion">Course Registration</label></fieldset>
            <fieldset><input type="radio" class="productselect" name="productselect" id="productselect_socialbusinessgroup" /><label for="productselect_socialbusinessgroup">Social/Business Group</label></fieldset>
            <fieldset><input type="radio" class="productselect" name="productselect" id="productselect_paddlefest" /><label for="productselect_paddlefest">Paddlefest</label></fieldset>
            <fieldset><input type="radio" class="productselect" name="productselect" id="productselect_paddleplay" /><label for="productselect_paddleplay">Paddle and Play</label></fieldset>
        </div>
        <div class="partners_internal_product_registration"></div>
    </div>

Answer 1

closest jQuery 中的函数将使用您提供的过滤器查找下一个元素，该元素是父元素或父元素的父元素等，基本上是在 DOM 树中查找。

在您的脚本中，您正在从单选按钮搜索partners_internal_product_registration类，但具有partners_internal_product_registration类的div实际上是sibling单选按钮的父级。

你确实需要

var AffectedRegistration = $(this).closest('.partners_internal_product_select')
                                .siblings('partners_internal_product_registration');