I've designed a header graphic for a client and basically it's a view of the city with a huge neon sign that spells out the name of their group (band). However, they want the bulbs around the neon sign to flicker on and off...like an old sleazy motel sign if you get what I mean. What would be the best way to go about getting this achieved? I don't know Flash so I'd prefer not to use it. Is there another way?