How it works

The AHAH framework is fully integrated into Drupal 6 so all you need to do is hook into it using Drupals form API. Here's an example of how to make the form API to use AHAH.

In jquery it is very easy touse DOM and do nice effects.Most common is to add and remove css classes from any of page element.We may need this if we want to make few fields required if particular condition is choosen.

jQuery provides the .addClass() and .removeClass() methods to implement this.

jQuery validation plugin can be used for adding validations for your form in simple way.you need to add jquery plugin in your page and few javascript lines also there.

1. http://www.doeacc.edu.in/jsp/ExamInfo.htm 
2. The basic entry level is a 10+2 or 10+ ITI
   qualifications. There is also a provision for horizontal entry at
   higher levels for students and professionals with university degree
   qualifications. Depending on the educational qualifications, a student
   can select one of the four levels of O/A/B/C. The detailed eligibility