News and Information Blog

MD5 Algorithm

The MD5 algorithm is a secure hash function. It takes a string input, and produces a fixed size number - 128 bits. This number is a hash of the input - a small change in the input results in a substantial change in the output. The functions are thought to be secure, in the sense that it would require an enormous amount of computing power to find a string which hashes to a chosen value. In others words, there's no way to decrypt a secure hash. The uses of secure hashes include digital signatures and challenge hash authentication.

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Using getElementsByClassName to Obtain an Array

This discussion looks at how to construct a function to get an array of all the elements with a specified class. Very interesting, with many excellent points.

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Library Detector for Firefox

Detects what JavaScript libraries are being used on the current page and displays the result as icons with detailed tooltips in the statusbar. Currently supports jQuery, jQuery UI, Prototype, Scriptaculous, Dojo, YUI, Qooxdoo, MooTools and Spry.

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Hex-to-RGB Conversion

Use this script to convert a hex color string to numeric RGB values of the same color. Great for matching colors. Easy to implement!

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Using JavaScript to Call PHP Database Routines Between Windows

This tutorial shows how to create a select or dropdown list for use with database routines. Learn how to gather input in one window for processing in another window.

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DD_roundies

Create rounded corners, without the use of images. Target designated classes and ids. Very easy to implement. Script is heavily commented for complete understanding.

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Day of Week

Use this script to calculate what day of the week a given date occurred. Can be used for past or future dates.

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Banner Rotater

Use this script to rotate your banner ads. Just set the images, URLs and the delay time. Very easy to implement.

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Introduction to PHP and Ajax

Ajax is a collection of technologies which allows a script to communicate with a server in real time. This series is an introduction to the power of Ajax. If you have mastered basic JavaScript, you can begin to use it immediately.

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Testimonial Container

This script creates a nice little format for displaying testimonials. The container is initially displayed in a collapsed stated, and then expanded for the entire testimonial. It can also be used to highlight comments, featured products or news stories. Easy to implement. A nice addition to any site!

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