Hi, I want to create a PHP form using codeigniter framework. E.g. Creating a new user. I want the user to choose his state from a drop down list, after the user has selected the state the form should be able to display a list of towns available in that state so that the user can choose his town. Are there any materials/resourses online which could help me build this kind of form. I would be grateful if someone could kindly give me a lead to start working on the form. Thank You.