I wana play online, can you tell me the items i need for online

what do i need in order to play online,

P.S. i have a router in my room

Links would be great

Is it a wireless router? if so, you are ready to play.

If not you need the Nintendo Wi-Fi USB Connector. But the best choice would be to have a wireless router since you then can connect all WiFi devices to the net.

1. Nintendo DS / Nintendo DS Lite system

2. 1 Nintendo DS Wi-Fi compatible game cartridge

3. a Wireless (Wi-Fi) Compatible Router/Modem, or an Official* Nintendo Wi-Fi USB connector.

*I say official, cos that WiFi max thing seriously sucks