Function: Output the CSS classes for messages within a single thread.

Function: Generate the CSS classes for messages within a single thread.

Function: Echo the ID of the current message in the thread.

Function: Get the ID of the current message in the thread.

Function: Get the max number of recipients to list in the ‘Conversation between.

Function: Output HTML links to recipients in the current thread.

Function: Generate HTML links to the profiles of recipients in the current thread.