How to access WiFi on ibook Pro mini laptop ?

I had buy an ibook pro mini laptop. But it has internet facility only through wifi not through data card or mobile. I do not know about wifi huw it runs. So please tell me how can i access internet through wifi, what i have to do and what things i have to buy.

Hi , you ca set WIFI in it if it support wifi but I don't know what kind of operating system it is running so it is not possible to give you solution.