使用jQuery更改OTHER div上的CSS

OK so basically have 3 divs, all stacked vertically. Each has its own class assigned (.inner1, .inner2 and .inner3) What I'd like to have happen is when you mouse over one of them, the other 2 fade out to 40% transparent. Each would have the ability to fade the others out. Mouse over #1, and #2 and 3 fade out. Mouse over #2, and #1 and 3 fade out...does that make sense?OK so basically have 3 divs, all stacked vertic