Interesting responses...
Here's my two cents:
Accurax is right, your navigation is created via Javascript. Without executing the script (which spiders don't do) there are no links for them to follow so your pages aren't indexed.
See attached image: That's what your website looks like to spiders. No navigation, no links.
Ross's suggestion of a Google sitemap is one way to get your pages indexed, but it doesn't not fix the problem: your pages don't link to each other (with standard <a..> tags).
Either way, it's easy to create a sitemap (as Accurax later suggested), you can
see mine for example or
read the instructions from Google.
Keniki's idea that using a free sitemap generator is a security risk is non-sense. The sitemap generator reads your pages and creates a list of all links it finds.
1. Your content (and thousands of other people's) has no value to them.
2. Search engines index your pages and store their contents. You want search engines to index your pages so this is obviously OK with you.
3. People don't need a sitemap generator to steal content. Search engine spiders do that quite well...
Also, I don't think a sitemap generator will work on your website because they don't execute scripts either. So the generator won't find any links to follow...
So, to sum it all up:
Ditch the Javascript navigation, use static
HTML and link to your pages.