DHTML form validation

First name:		Required = 1
Last name:		Required = 1
Email:		Required = 1, mask = email
Age:		Required = 1, mask = numeric
Code(SSSS-NN):		Required = 1, freemask = SSSS-NN i.e four letters and two digits
Zip code(NNNNN-NNNN):		Required = 1, mask = zip
Domain:		regexpPattern="/\b[A-Z0-9.-]+\.[A-Z]{2,4}\b/gi"
Country	Norway Denmark Sweden Finland France United States Germany	Required = 1