Forms are one of the most useful ways to collect information online from customers and potential customers who visit your website. But that information is just a waste of electrons if it is not correct. How can you validate it? This article explains some of the building blocks you can use in JavaScript to at least ascertain that information entered into a form is in the expected format. More info

Need to display a number in currency format? How about a number that is x digits in length? See how to easily, using two new methods of JavaScript 1.5+. More info

This JavaScript tutorial shows you how to implement a screen saver on a web page. It activates after a timeout, hides the current content of the page, creates an attractive display and more. By Guyon Roche. More info

JavaScript code runs on the user's machine, making it an ideal method to perform simple verification on form data before submitting it on to the server. Performing the checks on the client side saves the user from waiting for the data to travel way back to the server, and then (if there's a problem) waiting again for an error message. More info

Learn how to use functions in JavaScript. More info

Adding variables and functions to your scripts. More info

JavaScript may not be known for its object oriented properties, but it does support most of the features required to be considered an Object Oriented language. See how to write OOP code in JavaScript. More info

One of the great nuisances of using JavaScript to display content on demand is the requirement that everything be contained in variables. See how DHTML can help shatter that limitation, so regular HTML content can be dynamically rotated and shown just the same. More info

If your script relies on JavaScript cookies to store and persist information, it's a good idea to always first make sure the user's browser has cookies enabled. This tutorial shows you how to perform this detection. More info

One of the problems facing JavaScript developers is that the core features are only supported in the latest browsers. In this article, users will learn how to use JavaScript to solve this problem. More info