I have made an example of the Gmail username style signup page. Where you enter your selected username and click Check Username the script will then check to see if the username is taken if so make some suggestions as to others like that one which are available.

Next generation of auto complete control.

It’s a bit over the top… well… for a contact form that is. But yesterday morning I decided that I wanted to have a little fun so I put together an unobtrusive AJAX contact form (works even with JavaScript disabled). Feel free to send me a line. It’s a lean mean, contactin’ machine :D If you’re wondering what the whole package deal is all about, I put together a page of what is inside the zip file as a try-out demo just to show that it does in fact work right out of the box. I even downloaded the file myself as if I’m new to the whole thing ;)

Emblematiq - graphic portfolio of Chicago based freelancer Lucian Slatineanu, including web design and development, graphic design, identity design and branding, informational architecture solutions and interface design

Check out our Ajax Contact Form A JavaScript, CSS, XHTML web log focusing on usability and accessibility by Dustin Diaz

Before I made this I spent hours looking for a script that already did this. I didn't find anything that suited my needs so I just made it myself. It's fairly simple and I used prototype to make it even more simple. Anyway, I'm releasing it to the general public.

Free Web Resources Everyday - WebResourcesDepot

If you used Facebook on a regularly basis, you’ve probably come across their cool autocomplete method of adding multiple recipients to messages. For those that haven’t seen it, here’s a pic:

Here's a form validation script that is very easy to use.

Now I ran into a site a while ago that had a basic form with a gray border, if I would enter a correct contents the outline would be green, if I would enter something like: fake@fakemail as the contact mail address the outline would be red. I really like this effect but can’t seem to find a tutorial on it. Maybe you have a good solution?