CheckBoxes in Forms widget

[BJ Freeman]

I see where all checkboxes can be selected in a orderlist.FTL, using 
javascript.

I am looking at the ListLookupCommEvents, in CommunicationsScreens.xml.
particualarly the ListLookupCommEvents that removes commevents, in the 
commforms.xml.

I understand the wrappiing of one form widget with another to get added 
functionality.

what I am trying to understand is how to add the check all check boxes 
to the page like in the orderlist.ftl.

any help would be appreciated.