There's currently no way to set the disabled attribute in options generated by the form helpers.
I've created a patch that allows you to specify which values should be disabled in your options:
Any comments?
OK, I thought that this patch would have no side effects but I've just realised that some people may be passing selected elements without array brackets. This means that options_for_select(container, selected = nil, disabled = ) will interpret the first as selected and any subsequent ones as disabled. Does anyone have any suggestions?
Also, is there any reason why the disabled attribute is not supported currently?
