相关疑难解决方法(0)

<a href="#addFriend" rel="facebox" title="[+] add <?php echo $showU["full_name"]; ?> as friend">
    <div class="addFriend"></div></A>

<div id="addFriend" style="display:none; margin: auto;">
    <form action="javascript:DoFriendRequest()" method="post">
        <input name="commentFriend" type="text" id="commentFriend" value="" size="22"> 
        <input name="submit" type="submit" id="submit" value="Send">
    </form>
</div>

我的表单在这个元素里面是一个jquery灯箱,该字段#commentFriend在DoFriendRequest中获取空值

function DoFriendRequest() {
    var wrapperId = '#insert_svar';
    $.ajax({ 
        type: "POST",
        url: "misc/AddFriendRequest.php",
        data: {
            mode: 'ajax',
            comment : $('#commentFriend').val() 
        },
        success: function(msg) {
            $(wrapperId).prepend(msg);
            $('#commentFriend').val("");
        }
    });
}

更新的答案

但当我删除它display:none,它的工作原理.我怎么解决这个问题？