Function: Check whether there are more messages to iterate over.

Function: Initialize the messages template loop for a specific thread.

Function: Output the ‘ASC’ or ‘DESC’ messages order string for this loop.

Function: Get the ‘ASC’ or ‘DESC’ messages order string for this loop.

Function: Output the markup for the message recipient tabs.

Function: Output recipient usernames for prefilling the ‘To’ field on the Compose screen.

Function: Get the recipient usernames for prefilling the ‘To’ field on the Compose screen.

Function: Get the URL of the Messages AJAX loader gif.