It isn't often when I come across a JavaScript so cool that I feel I must blog about it. In fact, I don't think I've ever come across such a JavaScript before today. Datejs earns this elusive distincction today because it's just so darn good at what it does.It is really simple. You type in a date into the form box in a just about any way you can imagine (semantically or with standard dashes and slashes), and it will translate that into a formatted, database friendly version of the date. It is everything I've ever wanted in a form date validation tool, but didn't have the patience to program. Datejs is fast, too. I'm stuck using one of my slowest machines today, and there is no noticable delay between the typing and the translation of the date.
Datejs is released as open source via GoogleCode under the MIT license, so you can go grab it now and incorporate it into your site creatively. I expect to see this everywhere soon (that's not a prediction, that's an order!).