connect this module to a node
routine that is called periodically by cron
add demonstration data to the system
disconnect this module from a node
construct the dialog definition for editing a plain HTML page
save the modified content data of this module linked to node $node_id
search all htmlpages linked to selected nodes for keywords in $qwords
present the user with a dialog to modify the content that is connected to node $node_id
display the content of the htmlpage linked to node $node_id