need suggestion

[eluser]nandish[/eluser]
Hi guys

I have three dropdown boxes,when the view page get loads those three dropdown boxes
populate

The first dropdown box contain All school Names.

The second dropdown box contain All states.

The last dropdown box contail All years.

Agin i used onother two dropdown boxes for states and year. These dropdown boxes contain same id and name of the above state and year drop down boxes and these dropdown boxes poulate dynamically means ajax call.


when i select any school it will give state dropdown box and am going to replace old one.same thing when i select state it will give year dropdown box am going to replace old one.

This approach is good?
Is there any other way to do this.

Thanks