Writing a single page client-side only webpage
<p>I'm considering to try out an idea, mostly for fun, and my question is if this is reasonable and if there are any libraries or frameworks that could make this experiment a little easier.</p>

<p>So, the idea: Basically it is to write a new UI for a website I've developed, but doing it with client-side code only. I can read/write data using ajax, since my existing website has an API that allows me to perform all kinds of queries. This allows me to use JavaScript for the whole thing and theoretically put all of the code in a single file.</p>

<p>Obviously there are limitations to circumvent; bookmarking, page refreshing, the back-button etc. But these limitations are what makes it interesting, right? :) I'm not so worried about search engine indexing, since one has to be logged in to use the site anyway.</p>

<p>The site itself is not overly complex, but it is not simple either. There are four different levels of users, multiple languages and quite a lot of data to be presented.</p>

<p>Is this a bad idea? If so, why would you advice against it? And do you know of any JavaScript frameworks or libraries that could make this easier? (And no, I'm not looking for an abstraction like Google Web Toolkit; I would like something purely JavaScript)</p>
