I've searched but didn't find an answer, so if there 'is' one please direct me.

I've set up attributes for products where the products are classes for various types of fly fishing. Everything works well, but there are dates for the classes and some classes have multiple dates. If one date is full, is there a way to show that class date as full without physically removing that date/attribute? Leaving the date showing with "Class Full" (or similar) prompts visitors considering classes to take action. If the date were simply removed there is not as much to prompt a potential attendee to take action for the 'next' class.
Does this make sense?
The site is http://www.PeninsulaOutfitters.com/s...index&cPath=65 in case you'd like to see about what I'm rambling.

I know that changing the class quantity available to '0' will show the "Sold Out" image which is fine if only a single date is listed. But for multiple dates for one class, what other option(s) could be considered?

Thanks.