Absolutely. You may be able to pick up a replacement keyboard on eBay - that's probably the cheapest way of changing it. Having said that, it may be possible to repair it. Taking a laptop keyboard apart is a rather delicate operation, and unless you are fairly competent in that area, it's not wise to attempt it. It's probably best to find someone locally who can do it - you don't want postage costs on top of repair costs.
Does this help?