Assume, I am able to print the gmap using Drupal code in a div. I would like this map to appear inside a fancybox and to be hidden on the website. I've managed to do it (fancybox works ok) however the map is not displayed correctly, I am getting "Javascript is required to view this map".
 
Here is an *experimental* method, that may allow you to successfully reboot a map.
 

1. // Init Fancybox