I have a family site at [login to view URL], and would like to have a script to backup the data my family and I accumulated there over the years, including messages and photos. The script should replicate the site to an offline copy, and be able to incrementally update that copy upon demand. All I should need to provide is the site's address, my username and password, and the location of the copy. The script should verify the differences between the online and offline versions, and update the offline copy. If the offline copy location is nonexistant, it should create it, and if it's empty, it should make a first copy.