Ok, so im an idiot 
messing about on my new macbook and Ive accidently (through being stupid) deleted Safari and I forgot how easy it was to get rid of an apple app and its gone completely! I now cant access the internet on it!
How do I sort this problem? Im currently on my XP laptop. However when I try to download safari to then copy over, it only downloads the windows version.
Please help

messing about on my new macbook and Ive accidently (through being stupid) deleted Safari and I forgot how easy it was to get rid of an apple app and its gone completely! I now cant access the internet on it!
How do I sort this problem? Im currently on my XP laptop. However when I try to download safari to then copy over, it only downloads the windows version.
Please help