The template shows two different checkbox functions:

<input type="checkbox" id="select_warning" value="1"
onclick="do_select_warning();"/>

and

<input type="checkbox" id="select_all" value="1" onclick="do_select_all();" />

When you use the "select_warning" checkbox it actually also selects all of the
checkboxes for the delete section.

Not sure what the purpose of the "select_warning" checkbox will serve (maybe
filtering?).

Screenshot:
http://screencast.com/t/sSRljFuu2WI