validate and massage the user-supplied data path
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 a dialog definition for the snapshots configuration data
save the modified content data of this module linked to node $node_id
search this module's content in selected nodes for keywords in $qwords
present the user with a dialog to modify the snapshots that are connected to node $node_id
display the snapshots from the directory linked to node $node_id
the constructor only stores relevant data for future use
this class implements methods to display snapshots
the constructor only stores relevant data for future use
this class implements methods to display snapshots