Your best bet it to parse an object for functions.
In TGraalVar
getfunctions() - returns object - gets the names of all functions of the object as array, also each entry has subvariables which give more information about the function ("parameters", "description", "scope")
PHP Code:
function onCreated()
{
temp.test = level.getfunctions();
echo(temp.test);
}
This prints out a line of functions into RC chat. Best to make it pm the results to someone or pipe it to a debug window. Clientside it to get different results.
http://wiki.graal.us/Script_Functions:_NPC_Server
http://wiki.graal.us/Script_Functions:_Client
Nice list of functions. Use these while the Graal Bible is down.
The Graal Bible was down at the time of writing this. If you need more help just find me on Graal.