Sorry about the possibly misleading title. Here's what I need to do:
I'm producing a downloadable web app that users can load to their own php/MySQL enabled sites. It pretty much installs some tables into their DB and produces some pages to administer high school coursework marks (I won't go into details). I have a sidebar on the app homepage which lists various links, but would like to include an 'Updates' section so that if the version is 'old' a message will appear in the section and will produce a number of links, text paragraphs, icons etc.
I assume dynamic data on my server (where the update info will be housed) cannot be accessed. I don't think that the 'include' command will allow crossdomain access. Anybody have any ideas?