Where is the "global" namespace defined?

[Raghu Udiyar <raghusiddarth gmail com>]

Hi,

I'm new to Gnome development. I'm trying to write a 
gnome-shell extension by looking at other extensions and trial/error
 method.
 
I've also found the posts in this blog : http://blog.fpmurphy.com, very helpful.

I noticed the usage of "global" name-space, such as : 

global.create_app_launch_

context(),
global.parse_search_provider(source)
global.datadir
etc...

Where can I find these definitions? or is there a api document? I searched in : http://developer.gnome.org/references , but couldn't find them there.

I'm specifically looking for a way to read/write to a file. I'm trying to implement a document drawer.

Any help appreciated.

Thanks,

-- Raghu

PS. I'm a JS noob as well, but I'm trying to change that :)