Clerics, PrCs, and domain spells

[Merkuri]

Quick question. Just something I was curious about. When a cleric multi-classes in a PrC that gives +1 to a spellcasting level, all that extra level counts towards is spells, not turn undead, saves, or other abilities like that. My question is, if the +1 gives the cleric the ability to cast another level of spells (i.e. with just her cleric levels she would be able to cast up to 4th level spells, but with the PrC she can cast 5th), do those extra levels also confer the domain spell for that level, or does that fall into the "other abilities" category?

[Hussar]

Off the top of my head it would give Domain spells too. Since it usually says +1 caster level when determining what spells you get, I would say that domain spells are included here. The cleric would also gain any wisdom bonus spells too.