As is sits it is only usable on the desktop. The Update button is just for show. To be a fully functional app it needs to have a database and scripting to manage the data. It will work with any database and server side scripting language. You could even integrate AJAX. I will probably do a follow up piece for the scripting, but I suspect anyone with just a little experience can handle the trivial server support needed.
The html for the add function looks like this:
The detail entries consist of a series of fieldsets that look like this:
To get the CSS and Javascript required just click on the buttons below and cut and paste into your page:

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