How do i put a facebook button on website?

Hie...this is really easy and is very important to have facebook sharing button on your own website if you are having business and a sort of your own. I am also a businessman and I deal with the business of garments here in Ohio, I have also put up stores in three other cities but I also run an online store so that it is increasing my popularity. If people like any product on the shopping page, they like or share it on the web. It is really helpful in my business and sales are increasing day by day. You should have facebook URL, website, FTP Program (optional), FTP Login Information (optional) and Content Management System (optional). You can do it by simply login in your own web site and copying on the link. For more information about the same, you can visit ehow website and you will find a simple procedure as to how you can place the button there. Thanks