Rescue Text and TEXTAREA field values script

One of the worst things that can happen when a user is entering data into an INPUT type="text" or TEXTAREA element is an accidental browser reload or even crash- all the data is instantly lost. This script uses HTML5's sessionStorage to store the text entered into these fields as the user types, and recalls them in an event of a page refresh or even browser crash (FF3.5+ only).

Going beyond cookies- Using DOM sessionStorage and localStorage to persist larger amounts of info

HTML5 introduces DOM Storage, a new way of storing data on the client side that overcomes the disk space limitations of JavaScript cookies. This tutorial looks at how to take advantage of DOM Storage in browsers today.

Using document.createElement() to test for browser support for an element

Most of us are familiar with using object detection or the Navigator object to check for backing for a given JavaScript object or method, but these techniques do not work well when the objective is to check whether the browser supports a particular HTML element, such as the <canvas> element. This is where document.createElement() can be very helpful.

Full Screen Image Slideshow (w/ auto read images from directory)

Full Screen Image Slideshow is a cool slideshow that uses jQuery and PHP to display large images from a directory automatically and using the entire browser window as its canvas! Thumbnails of every image is shown at the bottom of the slideshow for easy viewing on demand.

JSON object reference

With JSON being all the rage, JavaScript has implemented a native JSON object to stringify and parse JSON data. This new reference describes this object.

The onmousewheel event of JavaScript

The onmousewheel event fires whenever the user moves the mouse wheel either upwards or downwards, and can provide yet another way for users to interact with your JavaScript. In this tutorial, lets see how to take advantage of onmousewheel across browsers.

JavaScript Events

This new addition to the JavaScript Reference makes it easy to look up any of the available event handlers in JavaScript and what they do.

Custom Attributes in HTML 5

HTML 5 supports a new "data" attribute you can add inside elements to store arbitrary bits of information, to be later parsed using JavaScript for example. This tutorial shows you how to utilize this new attribute.

Getting global and external style sheet values in DHTML

This useful tutorial looks at how to use DHTML to retrieve inherited CSS property values from global and external Style Sheets.

Handling runtime errors in JavaScript using try/catch/finally

The try/catch/finally statement of JavaScript lets you dip your toes into error prune territory and "reroute" when a runtime error has occurred. Learn all about this often misunderstood statement in this tutorial.

Creating a flashy image slideshow with IE Transitions

IE transitions is a collection of prebuilt visual effects in IE that can be applied during content state changes. A step by step tutorial on creating a cross browser image slideshow that's enhanced visually in IE thanks to Transitions.

JavaScript SELECT/OPTION objects reference updated

Two of the most confusing objects in JavaScript to grasp, we've just updated the SELECT and OPTION reference page with more in depth explanations.

Overview of CSS3 Structural pseudo-classes

There are some new classes this Fall, CSS3 Structural pseudo-classes that is. Learn about how they let you select and style child elements of a container based on a variety of generic criteria such as the odd and even rows of a table.

W3C CSS Selectors API- The querySelector() and querySelectorAll() methods

The querySelector() and querySelectorAll() methods let you enter a CSS selector as a parameter and return the selected elements as DOM elements. Think of them as document.getElementById() on steriods.