function validate_form() {
    var v = validate('forename', true, /^[\w\-\.\']{2,}$/, 'Please enter a valid forename')
    && validate('surname', true, /^[\w\-\.\']{2,}$/, 'Please enter a valid surname')
    && validate('email', true, /^(("[\w-\s]+")|([\w-]+(?:\.[\w-]+)*)|("[\w-\s]+")([\w-]+(?:\.[\w-]+)*))(@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$)|(@\[?((25[0-5]\.|2[0-4][0-9]\.|1[0-9]{2}\.|[0-9]{1,2}\.))((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})\.){2}(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})\]?$)/i, 'Please enter a valid email address')
    ;
    return v;
}