To better understand the design considerations behind inline validation, I worked with Etre, a London-based usability firm, to test 22 average users on six variations of a typical web registration form.
Aramys Miranda developed the form we used with our users, who ranged in age from 21 to 49.
You can then adapt this form to your own requirements.
Let's build a simple form with a validation script.
Validating your Web page won't guarantee that it will appear just the way you want it.
It only ensures that your code is free of syntax errors.
— Web Standards Group Even the most proficient Web designers sometimes fail to validate their documents — checking a Web document against the existing, DOCTYPE-specific technical specifications. HTML and CSS validation does not guarantee perfect Web documents, and some truly heinous Web sites can be designed that are completely valid.Shows you how to write a script that ensures your form is filled in correctly before it's sent to your server.Great for "required fields" such as email addresses!This tutorial will show you how to create a Java Script-enabled form that checks whether a user has filled in the form correctly before it's sent to the server. First we'll explain why form validation is a useful thing, and then build up a simple example form, explaining things as we go along.At the end, there's a little exercise to keep you busy too!