This JavaScript will factor and solve for both values of X, any quadratic equation that has real number solutions.

This JavaScript will call popups from a link. Each popup is sized individually. Can be used more than once on a page.

A mini-browser. You can type a URL in the form and script will load the requested page. The script works in both Netscape 4.0+ and IE 4.0+, but best in IE.

Opens a new popup window centered on the screen. Parameters added for optional scrollbars, resizablility, JavaScript menu bar, tool bar, address bar, status bar, and full screen display. The JavaScript link will launch a new window if the user does not have JavaScript enabled.

A cross-browser bookmarking script that not only works in Internet Explorer but also Firefox. Other browsers will get an alert message telling them how to bookmark the page.

Input color codes, either as RGB numbers, or as a 6 character hexadecimal code, then test it to see how it will look on the page. Great for testing color schemes!

This JavaScript tutorial will show you how to combine RSS, AJAX, and JavaScript to create a real-time RSS ticker.

Thanks to AJAX, the conventional roles of server side and client side programming are reversed in an web application like this as JavaScript- not PHP- is used to handle much of the work, including parsing the RSS file.

I've learned it's good form to always show your viewers exactly where you're leading them to begin with, so here are a couple of examples of the Ajax style RSS ticker I'll be discussing how to create.

Prototype is a JavaScript framework that features a unique, easy-to-use toolkit for class-driven development. The standards-compliant code takes a lot of the burden associated with creating rich, highly interactive Web pages.

Documentation can be found at: http://tinyurl.com/c7agc and http://tinyurl.com/buhp2.

Many browsers allow the XMLHTTPRequest object to be created directly. One method is to use this snippet. It tries all methods of creating the object until it discovers one that works.

Use this JavaScript instead of frames. When a visitor clicks on a specific link, the content of that link is inserted into the page without a refresh. When a page doesn't exist, a user-friendly error message is given.