[support] Moving markers in the GMap module

[glen e. p. ropella]

How do you take programmatic control of the markers with the GMap
module?  Do I have to dig into the JavaScript?  Or is there a hook into
the macros?  I looked at the .ini files in the modules/gmap/markers
directory; but it's not obvious to me where to put a hook.

Ideally, I'd like to do 2 things: 1) feed marker location from fields on
another drupal node to the gmap and 2) pull lat/long from a web service
on another server so that the marker moves while I'm looking at it.

Worst case, I'll start hacking on the javascript; but I thought there
would be some "official" way to do it.

Thanks.
-- 
glen e. p. ropella, 971-222-9095, http://tempusdictum.com