Is it possible to call client side function from server side code without initial client r

Atlas is great. I'm using timer to periodically check database changes on server to populate client side controls with new data. Is it possible to do it without a lot of client requests to server which takes a huge useless network traffic? Server should call client side function on all connected clients when, for example, 'database updated' event occurs on server. Thanks.Hi~ Just for your interest, I think you could have a look atComet, many web IM like Gmail's embeded Gtalk and meebo.com are built on this architecture