Hey YouTube, how's it going? It's Quinton here, and welcome to tutorial number 30. In this video, I am finally going to start speaking to you guys about some basic form validation. Now, if you take a look at our code here real quick, this is basically the same code from the previous tutorial. We have a form on our web page with three inputs: one for your name, one for your password, and a submit button. If we run this in Firefox, this is what it looks like. Just a place where you put in your name, password, and click login. Right now, if you click login, it takes you to a page that doesn't exist. So, whenever we're working with forms, we need some sort of clever scripting on our web page, like a PHP file for server-side processing. But for this tutorial, I won't assume you know any server-side programming, so instead, I'm just going to set the action attribute to "submission.html". That is another file I've prepared, which just says "thank you for submitting your data". Now, when we go back to this page and click refresh, when we click login, we get a page that says "thank you for submitting your data". So, even though this web page is kind of a lie because we don't do anything with the data, we don't have to see an error message. Sadly, we won't actually be logging a user into our website in this tutorial because we need server-side scripting for that. Instead, we're going to use JavaScript to ensure the user has filled in information before proceeding to the next page. Right now, I haven't filled in anything for name and password, but when I click login, it still says "thank you for submitting your data" and I'm able to proceed...