The full markup for hierarchical threading Movable Type

<mt:Ignore>
<!-- Display comments for the entry/page or commenting form if entry/page is accepting comments -->
</mt:Ignore>
<mt:IfCommentsActive>
<div id="comments" class="comments">


    <mt:SetVarTemplate name="comment_detail_template">
        <div id="comment-<$MTCommentID$>" class="comment<mt:IfCommentParent> comment-reply</mt:IfCommentParent>">
            <div class="inner">
                <div class="comment-header">
                    <div class="asset-meta">
                        <span class="byline">
                            <$MTCommentAuthorIdentity$>
        <mt:IfCommentParent>
                            <span class="vcard author"><$MTCommentAuthorLink$></span> replied to <a href="<mt:CommentParent><$mt:CommentLink$></mt:CommentParent>">comment from <mt:CommentParent><$MTCommentAuthor$></mt:CommentParent></a>
        <mt:else>
                            <span class="vcard author"><$MTCommentAuthorLink$></span>
        </mt:IfCommentParent>
                            | <a href="<$mt:CommentLink$>"><abbr class="published" title="<$MTCommentDate format_name="iso8601"$>"><$MTCommentDate$></abbr></a>
        <MTIfCommentsAccepted>
                            | <$MTCommentReplyToLink$>
        </MTIfCommentsAccepted>
                        </span>
                    </div>
                </div>
                <div class="comment-content">
                    <$MTCommentBody$>
                </div>
            </div>
        </div>
    </mt:SetVarTemplate>
    
    
    <MTComments>
        <MTCommentsHeader>
    <h2 class="comments-header"><$MTEntryCommentCount singular="1 Comment" plural="# Comments" none="No Comments"$></h2>
    <div class="comments-content">
        </MTCommentsHeader>
        <mt:IfCommentParent> <!-- If comment has a parent comment. We ignore this, as we just want the top-level-parent comments -->
            <mt:Else> <!-- If comment doesn't have a top-level-parent -->
                <$mt:var name="comment_detail_template"$>
            <mt:CommentReplies> <!-- Loop through the reply comments -->
                <mt:CommentsHeader>
                <div style="margin-left: 20px;">
                </mt:CommentsHeader>
                <$mt:var name="comment_detail_template"$>
                <$mt:CommentRepliesRecurse$> <!-- For each reply comment, recursively display any reply comments -->    
                <mt:CommentsFooter>
                </div>
                </mt:CommentsFooter>
            </mt:CommentReplies>
        </mt:IfCommentParent>
        <MTCommentsFooter>
    </div>
        </MTCommentsFooter>
    </MTComments>



    <mt:Ignore>
    <!-- Display commenting form if entry/page is accepting comments -->
    </mt:Ignore>
    <mt:IfCommentsAccepted>
    <div class="comments-open" id="comments-open">
        <h2 class="comments-open-header">Leave a comment</h2>
        <div class="comments-open-content">

        <mt:Ignore>
        <!-- Display greeting for users if blog allows users to register locally -->
        </mt:Ignore>
            <div id="comment-greeting"></div>

            <form method="post" action="<$mt:CGIPath$><$mt:CommentScript$>" name="comments_form" id="comments-form" onsubmit="return mtCommentOnSubmit(this)">
                <input type="hidden" name="static" value="1" />
                <input type="hidden" name="entry_id" value="<$mt:EntryID$>" />
                <input type="hidden" name="__lang" value="<$mt:BlogLanguage$>" />
                <input type="hidden" name="parent_id" value="<$mt:CommentParentID$>" id="comment-parent-id" />
                <input type="hidden" name="armor" value="1" />
                <input type="hidden" name="preview" value="" />
                <input type="hidden" name="sid" value="" />
                <div id="comments-open-data">
                    <div id="comment-form-name">
                        <label for="comment-author">Name</label>
                        <input id="comment-author" name="author" size="30" value="" onfocus="mtCommentFormOnFocus()" />
                    </div>
                    <div id="comment-form-email">
                        <label for="comment-email">Email Address</label>
                        <input id="comment-email" name="email" size="30" value="" onfocus="mtCommentFormOnFocus()" />
                    </div>
                    <div id="comment-form-url">
                        <label for="comment-url">URL</label>
                        <input id="comment-url" name="url" size="30" value="" onfocus="mtCommentFormOnFocus()" />
                    </div>
                    <div id="comment-form-remember-me">
                        <input type="checkbox" id="comment-bake-cookie" name="bakecookie" onclick="mtRememberMeOnClick(this)" value="1" accesskey="r" />
                        <label for="comment-bake-cookie">Remember personal info?</label>
                    </div>
                </div>
                <div id="comment-form-reply" style="display:none">
                    <input type="checkbox" id="comment-reply" name="comment_reply" value="" onclick="mtSetCommentParentID()" />
                    <label for="comment-reply" id="comment-reply-label"></label>
                </div>
                <div id="comments-open-text">
                    <label for="comment-text">Comments
                    <mt:IfAllowCommentHTML>(You may use HTML tags for style)</mt:IfAllowCommentHTML></label>
                    <textarea id="comment-text" name="text" rows="15" cols="50" onfocus="mtCommentFormOnFocus()"></textarea>
                </div>
                <div id="comments-open-captcha"></div>
                <div id="comments-open-footer">
                    <input type="submit" accesskey="v" name="preview_button" id="comment-preview" value="Preview" onclick="this.form.preview.value='1';" />
                    <input type="submit" accesskey="s" name="post" id="comment-submit" value="Submit" />
                </div>
            </form>


        </div>
    </div>
    <script type="text/javascript">
    <!--
    mtAttachEvent("load", mtEntryOnLoad);
    mtAttachEvent("unload", mtEntryOnUnload);
    //-->
    </script>
    </mt:IfCommentsAccepted>


</div>
</mt:IfCommentsActive>