It appears the following code will not work inside of the HTML part of inserting an ad. I am trying to bypass some Forums I do not want the code in.
<xf:if is="!in_array({$forum.node_id}, [228, 305, 308, 309, 310, 316, 341, 317, 49, 62, 253, 232, 81, 45, 319, 265])">
If I dump the code I get...