Edit include/staff/ticket.view.inc.php

search: <th width="300" class="tmeta"><?php echo Format:($entry); ?></th>

replace: <th width="300" class="tmeta"><?php echo Format:($entry); ?></th>

<th width="130">

<form id="deleteNote" action="tickets.php?id=<?php echo $ticket->getId(); ?>#reply" name="deleteNote" method="post" enctype="multipart/form-data">

<?php csrf_token(); ?>

<span class="error"></span>

<input type="hidden" name="id" name="id" value="<?php echo $ticket->getId(); ?>" />

<input type="hidden" name="note_id" value="<?php echo $entry; ?>" />

<input type="hidden" name="a" value="deletenote" />

<input class="btn btn-danger btn-xs" type="submit" value="Borrar Comentario" onClick='return confirm("¿Estás seguro de querer borrar este comentario?");' />

</form>

</th>

After, edit colspan=3 by colspan=4

Edit include/class.ticket.php

search: function delete() { and above add

/* UPD 26/09/13 - Para borrar comentarios */

function deleteNote($note_id) {

$sql = 'DELETE FROM ' . TICKET_THREAD_TABLE . ' WHERE id =' . $note_id;

if (!db_query($sql) || !db_affected_rows())

return false;

return true;

}

Edit scp/tickets.php

search: case 'reply':

ADD ABOVE

case 'deletenote':

$ticket->deleteNote($_POST);

break;