wordpress ajax comment! getCommentHTML???

wordpress ajax comment

<?php
// Method to handle comment submission
function ajaxComment($comment_ID, $comment_status) {
	// If it's an AJAX-submitted comment
	if(isset($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest'){
		// Get the comment data
		$comment = get_comment($comment_ID);
		// Allow the email to the author to be sent
		wp_notify_postauthor($comment_ID, $comment->comment_type);
		// Get the comment HTML from my custom comment HTML function
		$commentContent = getCommentHTML($comment);
		// Kill the script, returning the comment HTML
		die($commentContent);
	}
}

// Send all comment submissions through my "ajaxComment" method
add_action('comment_post', 'ajaxComment', 20, 2);