reference
- JavaScript Form Validation Script: More features
- JavaScript Form Validation : quick and easy!
- How to Submit a Form Using JavaScript
- Using JavaScript to reset or clear a form
- Using JavaScript to access form objects when there are multiple forms
- How to get the value of a form element : check box and radio button
- How to get the value of a form element : Drop downs and lists
- How to get the value of a form element using JavaScript
- The HTML Form Submit Button