getting string names of variables

["Brett Bibby" <research@...>]

Hi,
In our game, we assign guids to function names and then use variable names 
to resolve them when needed to provide a human friendly way to access these 
functions.  I'm wondering if there is a way to get the string name of the 
intermediate reference.  For example:


Foo = f1234

function f1234(param)
....
end

Is there any way, given "Foo", to find "f1234"?

If I do:
lua_pushstring(L, "Foo");
lua_gettable(L, LUA_GLOBALSINDEX);

Now the stack has a function on it, but I want to get the string "f1234" 
instead.  Is this possible?

Brett