|groupID||The index of the audio group to unload (as defined in the Global Game Settings Audio Groups Tab)|
This function will unload all the sounds that are flagged as
belonging to the given Audio Group into memory. The function will
return true if unloading is initiated and false
if the group ID is invalid, or it has already been flagged for
unloading. Note that any audio currently being played when this
function is called will be stopped.
The above code checks to see if an audio group has been loaded and if it has it unloads it.