javascript - 如何在以下场景中使用 jQuery 隐藏/显示表单？

Question

我正在为我的网站使用 Smarty、Php 和 Jquery。当页面加载时，不应显示以下表单。当用户点击下面给出的超链接时，它应该会显示出来，如果用户想再次隐藏表单，他将点击相同的超链接来隐藏上面的表单。简而言之，在 formload 上，不应显示表单，单击超链接后，如果表单打开，则应显示该表单，如果隐藏，则应将其关闭。你能帮我用 jQuery 实现这个吗？提前致谢。

<a class="reply" href="{$control_url}modules/enquiries/reply_to_enquiry.php?contact_id={$data.contact_id}&op=reply&from_date={$from_date}&to_date={$to_date}">Reply</a>

<form id="manage_reply_enquiry" name="manage_reply_enquiry" method="post" action="{$control_url}modules/enquiries/reply_to_enquiry.php" enctype="multipart/form-data">
    <ul>
        <li>
            <label>{'To Name'|signal_on_error:$error_msg:'contact_full_name'} :</label>
            <div class="form-element">
                <input type="text" name="contact_full_name" id="contact_full_name" {if $data.contact_full_name!=''} value="{$data.contact_full_name}" {else} value="{$contact_full_name|capitalize}" {/if} class="">
            </div>
        </li>
        <li>
            <label>{'To Email'|signal_on_error:$error_msg:'contact_email_id'} :</label>
            <div class="form-element">
                <input type="text" name="contact_email_id" id="contact_email_id" {if $data.contact_email_id !=''} value="{$data.contact_email_id}" {else} value="{$contact_email_id}" {/if} class="">
            </div>
        </li>
        <li>
            <label>{'Reply'|signal_on_error:$error_msg:'reply'} :</label>
            <div class="form-element">
                <textarea name="reply" id="reply" cols="60" rows="12">{if $error_msg!=""}{$data.reply}{/if}</textarea>
            </div>
        </li>
        <li>
            <label>{'Upload File'|signal_on_error:$error_msg:'reply_file_name'} :</label>
            <div class="form-element">
                <p class="uploadBtn"><input type="file" id="reply_file_name" name="reply_file_name" /></p>
                <div class="input-info"> <span class="required">Note* (Image size should be less then 1 mb and alowed format types are jpg, jpeg, gif, png, JPG, JPEG, GIF, PNG, doc, docx)</span></div>
            </div>
        </li>
        <input type="hidden" name="contact_id" value="{$data.contact_id}" />
        <input type="hidden" name="from_date" value="{$from_date}" />
        <input type="hidden" name="to_date" value="{$to_date}" />
        <input type="hidden" name="op" value="{$op}" />
        <li>
            <label></label>
            <div class="form-element">
                <input type="submit" name="submit" id="submit" class="c-btn" value="Send">
                <input type="button" name="cancel" id="cancel" class="c-btn" value="Cancel" onclick="javascript:window.location.href='{$control_url}modules/enquiries/view_contact_us.php?page={$page}&from_date={$from_date}&to_date={$to_date}'">
            </div>
        </li>                
    </ul>
</form>

Answer 1

没有启用 JS 的用户怎么办？ This Fiddle可能是一个更完整的解决方案:

HTML:

<!-- Have the link anchored to the form so it still makes sense for text-only, speech-readers, or users with JS disabled -->
<a class="reply" href="#manage_reply_enquiry">Reply</a>
<form id="manage_reply_enquiry">
    <fieldset>
        <legend>I am Legend</legend>
        <input type="text" name="field" value="a form field" />
    </fieldset>
</form>

JS:

//If JS is enabled add a class so we can hide the form ASAP (and only for JS enabled browsers)
    document.documentElement.className = 'js';

//add the jQuery click/show/hide behaviours (or native JS if you prefer):
    $(document).ready(function(){
        $(".reply").click(function(){
            if($("#manage_reply_enquiry").is(":visible")){
                $("#manage_reply_enquiry").hide();
            } else {
                $("#manage_reply_enquiry").show();
            }
            //don't follow the link (optional, seen as the link is just an anchor)
            return false;
        });
    });

CSS:

.js #manage_reply_enquiry {
    display:none; /* hide for JS enabled browsers */
}
#manage_reply_enquiry {
    /* form styles here */
}

DEMO