I didn't notice because I had scripting on at the time, but it deserves another compliment, seeing as so few websites seem to bother these days.
(even for those who think noscript browsing is not with the times any more, it's still good practice to give a decent error message / explanation instead of breaking or blanking)
I just checked my comment history and about 50% of my comments have been related to this issue. This is the first one that is complimentary.