Topic: HTML form validation

[Perspective]

I have a huge form (more than 100 questions), mostly radio button selections and a few text fields. I want to make sure every question is answered before the form can be submitted. Is there a way to iterate over the form elements to do this? Instead of manually writing out a check for each one? If I iterate over the form DOM, how do I know what type of form element it is? (Since radio buttons will be validated differently from text fields).

Ideas?

[Mike]

First, remember the most important rule:  Client side validation is for the client not for security.  Remember that users are the enemy.

For client side I would just look at a jquery form validator.

Some things to remember:
you can look at the type attribute for the tag to determine what type of input it is.
radios work best with a default value
unchecked check boxes don't set a value in the post