File version control

[naio]

My solution is build according to the 'separation model', so I would like to keep control of the local file containing the layout and presentation of the data hosted in the server.

I wonder if I could have a script to control wether the local file gets its structure, layout or scripting modified, so I need a function to control when a change to the file has been made before giving it a version number. When the file gets open only to work with the hosted data it's not a new version.