Need help ..i have a ? about the ps3?

i have a ps3 and i also have wireless internet.how do i get connected with ps3 online.is there something i need to buy inorder to go online..what do i do to play my games onlineNeed help ..i have a ? about the ps3?
Go to the settings tab on the PS3 menu (XMB, Cross Media Bar). Then, go all the way down until you find Network Settings. Go to Network Settings and you should see the options to set up internet. Make sure internet connection is enabled, and just go wireless connection whilst setting up the connection. You must have the WAP or WEP code for your internet, which is the password. Or, if you have no security, just select None. I would hope you do though because if not you are open to hackers and people that steal your internet. lol.Need help ..i have a ? about the ps3?
type in pcfy
goto the internet settings and choose wireless and go thru the motions....