Getting Javascript to work with my own theme

Hi,

I've recently added and played about with the GMap module... To stick some Google Maps on my site...

Everything works fine with a standard theme such as Garland, maps show up perfectly so I know its not a GMap issue...

However with my custom theme, where the map should be I get this message "Javascript is required to view this map."

Obviously theres a bit of code somewhere that Garland has that I don't have, but I can't for the life of my figure out what...

A piece of code that gets the Javascript going maybe?

Any help would be greatly appreciated.