IPOD HELP!! syncing question….?

OK I have an ipod (synced to another computer) and I got a new computer and I want to sync it to my new computer but all my songs will delete from my ipod..right?… Will the songs deleted from my ipod transfer to my itunes account? Or just my songs on my itunes account transfer to my ipod deleting the songs on my ipod? I REALLY NEED HELP SO PLEASE ANSWER!!!