J Cornelius

On howtos

Handle it Once — November 16, 2008

A recurring theme of conversation at events and among online chatter seems to be an overload of email and other things vying for our attention. On a few occasions I’ve heard people express their thirst for a simple, clean way of managing the deluge. So here’s my offering. Handle It Once. This chart breaks it into the simplest of terms. You can use this concept for managing... continue »

IE6 PNG Transparency, Again — October 21, 2008

So there you are, admiring your hard work. Your pixel precise, artfully crafted design with it’s clever use of 24bit alpha-transparent PNG images to create the perfect effect you wanted. Bravo! Well, that is until you look at it in IE6. So you hack the CSS or add special Javascripts to force things to playing nice. How about this? Instead of using one of the many Javascript or CSS... continue »

JavaScript Checkbox Magic Using Prototype — January 2, 2007

As common or rare as it may be for someone to need the ability to select and deselect checkboxes in a form, here is a way to do it using the Prototype JavaScript Library . I recently needed a way to do this for the Private Message functionality of a Web Application I'm working on. The example code below is taken from this Application. First make the Event observers:... continue »

Super Ninja Mailtos — November 18, 2003

Mailtos are a convenient way to let your audience offer feedback on your Web site or to arrange other contact information. But you can do a lot more with a mailto than just automatically generate an e-mail message. Super ninja mailtos can automatically CC and BCC people, or even fill in the subject line. You could go read the RFC to learn how, or you could just keep reading for the quick and... continue »