We need a sign up page for our system. Basically, it will be a page with several tabs, and the current tab, for any user, will have to be dynamically determined based on a call to our web-service. The page will communicate with our own web-service, so it will not need any local (host) access to db etc. Basically, it will be what is typically called a Single Page Web Application or sometimes called an HTML5 Application. For example, we do not need internet explorer compatibility.
No PHP or SQL required (since we are not using anything local).