Add some comment API and update comment popup templates to use them. Props David Hose. fixes #1892

git-svn-id: https://develop.svn.wordpress.org/trunk@3115 602fd350-edb4-49c9-b593-d223f7449a82

wp-includes/comment-functions.php

@@ -863,4 +863,9 @@ function check_comment($author, $email, $url, $comment, $user_ip, $user_agent, $
 	return true;
 }
 
+function get_approved_comments($post_id) {
+	global $wpdb;
+	return $wpdb->get_results("SELECT * FROM $wpdb->comments WHERE comment_post_ID = $post_id AND comment_approved = '1' ORDER BY comment_date");
+}
+
 ?>