How can I simplify form validation?

Question

The code below seems to work pretty well for doing basic required form validation.

The form displays a red Name is required message when the field is dirty

Answer 1

Try this HTML:

            
            

                Client Name
                
                
Your email is required.
            


            

                Password
                
            
            

                Confirm Password
                
                password should not match
            

            

                First Name
                
                Accept only letters
                Accept only 50 characters
            

            

                Last Name
                

            
            

                Date Of Birth
                
                Incorrect Format, should be MM/DD/YYYY

            

            Submit