Not understanding form validation

[eluser]cominus[/eluser]
Thanks, JuanitoDelCielo, but it looks like you are trying to show me a better way to do the form - or forms, in your view. As I look at it, your example does not accomplish the same thing - and it gives me no clue why the validation code I submitted does not work. The code I presented is almost exactly as it is written in the manual for a basic login with validation. I need to know why the validation does not work. Any help in this regard will be much appreciated. Thanks.