I've added a map (OpenLayers) in one of the CMS templates to let the page editors put markers in geographic locations.

However, I've got a problem: As I switch between subpages in the CMS, the map won't load. It requires a full page reload (F5 in browser) to make the map show up. Which, I guess, is to be expected, as subpage navigation is executed dynamically in AJAX, right?

So my question is: where do I hook up my JS map initialization function so that it is called each time a CMS subpage containing a map is loaded?

Actually, let's forget about maps for a second. Let's talk about putting any JS code in a subpage template. (And when I say "subpage", I mean CMS subpage for editing pieces of content, of course, and not the public-facing website.) Like literally alert("ok"). Does it pop up each time you switch between subpages? Because it doesn't seem to be doing that for me.