I have layers of vector shapes in photoshop with a drop shadow effect on each layer. I am making it for web, and I need the edges to be hard/sharp instead of having the blurry shadow outside the edges of the shape. I want to keep the layers editable though in case I need to change them later, so I don't want to rasterize them in order to erase the outside drop shadow. I don't want to use inner shadow effect, either.
Here's an example of what I'm talking about: http://i.imgur.com/b9TiS.jpg