what do you mean by coding a website? Do you want to make a dynamic website using PHP or do you want to encrypt a current website? If you can elaborate a bit on this I can provide you with further help
Learn HTML, CSS, PHP and MySQL. There's plenty of sites on the internet if you just spend some time Googling, and plenty of books to order off Amazon. I recommend the O'Reilly books: http://www.amazon.com/s/ref=nb_ss_b?url=search-alias%3Dstripbooks&field-keywords=O%27Reilly+html&x=0&y=0 Take some time and do some legwork, it's not that difficult to find some resources to learn from.