I removed your HTML in the post above, as most of it didn't come through, and wasn't really helpful anyways. I did find the URL to your page in it though, which helped me look at your site.
I just went there in both Firefox and Chrome, and the Login with Facebook button was working fine. There was an issue with Facebook itself earlier today that affected some sites, and yours may have been one. Basically, they updated their Javascript API, and it broke the FB Connect button on some sites.
If you're still having issues, just let us know!