dynamic dropdown box

[eluser]umefarooq[/eluser]
yes ajax is the key, will help you to solve you problem its really easy use just use jquery to do this all if you dont know about jquery also just have look on these tutorials will help you

http://net.tutsplus.com/articles/web-rou...eo-series/

if you want to do really quick check jquery change event from jquery doc

http://api.jquery.com/change/

jquery post doc

http://api.jquery.com/jQuery.post/

just put post in jquery change function will work for you if you find any problem just post here