Writing you any code to work next to a full script can be done, but since there is no way to know what your script does and what parts of it have been worked on, making sure the new code works might be harder than you think. If you're lucky, the author of your script hasn't done anything weird to prevent adding of additional code, but I know several scripts that will go completely boinkers. So should someone decide to post some stuff here for you, don't be surprised if it doesn't work. Be thankful if it does - you then seem to have gotten your hands on a script by an author that isn't overly protective and abusive in his coding...
