title: form validation with javascript vs php
body: <p>Why should I bother to use JavaScript for form validation when I still have to use PHP since the user could have JavaScript support turned off.</p>
  <p>Isn't it unnecessary?</p>
  <h3>Update:</h3>
  <p>Ok thanks for your answers. it sounds like a good idea to have it on the client side too. where can I download good JavaScript validations?</p>
  <p>Do you know where I can download a validation script like that one in yahoo when you register an account?</p>