func init
	if(linked("doData") and linked("GetData"))
		sys.add_var(this.name, 'dynamic')
	end
end

func doData(data)
	if(linked("GetData"))
		dt = d("Data")
		this.type = typeof(dt)
		blk.println(this.codename, ' = ', sys.if_null(dt), ';')
	end
end

func GetData(data)
	event("onEvent") 
	if(linked("doData"))
		return(sub(this.codename, this.type))
	else
		return(d("Data"))
	end
end