Yeah, remember... W3shcools isn't just good for HTML, it also has lot's of tutorials and help for people wanting to look into more advanced coding, more functional and server side scripting. It has JQuery and my personal favorite at the moment asynchronous javascript and xml (AJAX). Really if you're looking into creating a professional looking site, I'd definately look into this site... And if you do still need help of course post here.
Ohh and you can get w3 certification.